/* ECOFF object file format.
Copyright (C) 1993 Free Software Foundation, Inc.
Contributed by Cygnus Support.
- This file was put together by Ian Lance Taylor <ian@cygnus.com>. A
- good deal of it comes directly from mips-tfile.c, by Michael
- Meissner <meissner@osf.org>.
+ This file was put together by Ian Lance Taylor <ian@cygnus.com>.
This file is part of GAS.
#include "as.h"
#include "coff/internal.h"
-#include "coff/sym.h"
-#include "coff/symconst.h"
-#include "coff/ecoff.h"
-#include "aout/stab_gnu.h"
#include "../bfd/libcoff.h"
#include "../bfd/libecoff.h"
-#include <ctype.h>
+/* Almost all of the ECOFF support is actually in ecoff.c in the main
+ gas directory. This file mostly just arranges to call that one at
+ the right times. */
-/* Why isn't this in coff/sym.h? */
-#define ST_RFDESCAPE 0xfff
-
-/* Why isn't this in listing.h? */
-extern int listing;
-
-/* The ECOFF file format uses COFF style sections, but with a unique
- debugging format. We just build generic BFD sections since BFD
- knows how to write them out. The debugging format, however, we
- must construct here; all BFD knows at the moment is to write it out
- as a large block of data.
-
- We support both COFF style debugging and stabs debugging (the stabs
- symbols are encapsulated in COFF symbols). This should let us
- handle anything the compiler might throw at us. Parsing the COFF
- and stabs debugging information is similar to work done by COFF and
- a.out targets, but since the result is completely different the
- code is not shared. */
-
-/* Here is a brief description of the MIPS ECOFF symbol table, by
- Michael Meissner. The MIPS symbol table has the following pieces:
-
- Symbolic Header
- |
- +-- Auxiliary Symbols
- |
- +-- Dense number table
- |
- +-- Optimizer Symbols
- |
- +-- External Strings
- |
- +-- External Symbols
- |
- +-- Relative file descriptors
- |
- +-- File table
- |
- +-- Procedure table
- |
- +-- Line number table
- |
- +-- Local Strings
- |
- +-- Local Symbols
-
- The symbolic header points to each of the other tables, and also
- contains the number of entries. It also contains a magic number
- and MIPS compiler version number, such as 2.0.
-
- The auxiliary table is a series of 32 bit integers, that are
- referenced as needed from the local symbol table. Unlike standard
- COFF, the aux. information does not follow the symbol that uses
- it, but rather is a separate table. In theory, this would allow
- the MIPS compilers to collapse duplicate aux. entries, but I've not
- noticed this happening with the 1.31 compiler suite. The different
- types of aux. entries are:
-
- 1) dnLow: Low bound on array dimension.
-
- 2) dnHigh: High bound on array dimension.
-
- 3) isym: Index to the local symbol which is the start of the
- function for the end of function first aux. entry.
-
- 4) width: Width of structures and bitfields.
-
- 5) count: Count of ranges for variant part.
-
- 6) rndx: A relative index into the symbol table. The relative
- index field has two parts: rfd which is a pointer into the
- relative file index table or ST_RFDESCAPE which says the next
- aux. entry is the file number, and index: which is the pointer
- into the local symbol within a given file table. This is for
- things like references to types defined in another file.
-
- 7) Type information: This is like the COFF type bits, except it
- is 32 bits instead of 16; they still have room to add new
- basic types; and they can handle more than 6 levels of array,
- pointer, function, etc. Each type information field contains
- the following structure members:
-
- a) fBitfield: a bit that says this is a bitfield, and the
- size in bits follows as the next aux. entry.
-
- b) continued: a bit that says the next aux. entry is a
- continuation of the current type information (in case
- there are more than 6 levels of array/ptr/function).
-
- c) bt: an integer containing the base type before adding
- array, pointer, function, etc. qualifiers. The
- current base types that I have documentation for are:
-
- btNil -- undefined
- btAdr -- address - integer same size as ptr
- btChar -- character
- btUChar -- unsigned character
- btShort -- short
- btUShort -- unsigned short
- btInt -- int
- btUInt -- unsigned int
- btLong -- long
- btULong -- unsigned long
- btFloat -- float (real)
- btDouble -- Double (real)
- btStruct -- Structure (Record)
- btUnion -- Union (variant)
- btEnum -- Enumerated
- btTypedef -- defined via a typedef isymRef
- btRange -- subrange of int
- btSet -- pascal sets
- btComplex -- fortran complex
- btDComplex -- fortran double complex
- btIndirect -- forward or unnamed typedef
- btFixedDec -- Fixed Decimal
- btFloatDec -- Float Decimal
- btString -- Varying Length Character String
- btBit -- Aligned Bit String
- btPicture -- Picture
- btVoid -- Void (MIPS cc revision >= 2.00)
-
- d) tq0 - tq5: type qualifier fields as needed. The
- current type qualifier fields I have documentation for
- are:
-
- tqNil -- no more qualifiers
- tqPtr -- pointer
- tqProc -- procedure
- tqArray -- array
- tqFar -- 8086 far pointers
- tqVol -- volatile
-
-
- The dense number table is used in the front ends, and disappears by
- the time the .o is created.
-
- With the 1.31 compiler suite, the optimization symbols don't seem
- to be used as far as I can tell.
-
- The linker is the first entity that creates the relative file
- descriptor table, and I believe it is used so that the individual
- file table pointers don't have to be rewritten when the objects are
- merged together into the program file.
-
- Unlike COFF, the basic symbol & string tables are split into
- external and local symbols/strings. The relocation information
- only goes off of the external symbol table, and the debug
- information only goes off of the internal symbol table. The
- external symbols can have links to an appropriate file index and
- symbol within the file to give it the appropriate type information.
- Because of this, the external symbols are actually larger than the
- internal symbols (to contain the link information), and contain the
- local symbol structure as a member, though this member is not the
- first member of the external symbol structure (!). I suspect this
- split is to make strip easier to deal with.
-
- Each file table has offsets for where the line numbers, local
- strings, local symbols, and procedure table starts from within the
- global tables, and the indexs are reset to 0 for each of those
- tables for the file.
-
- The procedure table contains the binary equivalents of the .ent
- (start of the function address), .frame (what register is the
- virtual frame pointer, constant offset from the register to obtain
- the VFP, and what register holds the return address), .mask/.fmask
- (bitmask of saved registers, and where the first register is stored
- relative to the VFP) assembler directives. It also contains the
- low and high bounds of the line numbers if debugging is turned on.
-
- The line number table is a compressed form of the normal COFF line
- table. Each line number entry is either 1 or 3 bytes long, and
- contains a signed delta from the previous line, and an unsigned
- count of the number of instructions this statement takes.
-
- The local symbol table contains the following fields:
-
- 1) iss: index to the local string table giving the name of the
- symbol.
-
- 2) value: value of the symbol (address, register number, etc.).
-
- 3) st: symbol type. The current symbol types are:
-
- stNil -- Nuthin' special
- stGlobal -- external symbol
- stStatic -- static
- stParam -- procedure argument
- stLocal -- local variable
- stLabel -- label
- stProc -- External Procedure
- stBlock -- beginning of block
- stEnd -- end (of anything)
- stMember -- member (of anything)
- stTypedef -- type definition
- stFile -- file name
- stRegReloc -- register relocation
- stForward -- forwarding address
- stStaticProc -- Static procedure
- stConstant -- const
-
- 4) sc: storage class. The current storage classes are:
-
- scText -- text symbol
- scData -- initialized data symbol
- scBss -- un-initialized data symbol
- scRegister -- value of symbol is register number
- scAbs -- value of symbol is absolute
- scUndefined -- who knows?
- scCdbLocal -- variable's value is IN se->va.??
- scBits -- this is a bit field
- scCdbSystem -- value is IN debugger's address space
- scRegImage -- register value saved on stack
- scInfo -- symbol contains debugger information
- scUserStruct -- addr in struct user for current process
- scSData -- load time only small data
- scSBss -- load time only small common
- scRData -- load time only read only data
- scVar -- Var parameter (fortranpascal)
- scCommon -- common variable
- scSCommon -- small common
- scVarRegister -- Var parameter in a register
- scVariant -- Variant record
- scSUndefined -- small undefined(external) data
- scInit -- .init section symbol
-
- 5) index: pointer to a local symbol or aux. entry.
-
-
-
- For the following program:
-
- #include <stdio.h>
-
- main(){
- printf("Hello World!\n");
- return 0;
- }
-
- Mips-tdump produces the following information:
-
- Global file header:
- magic number 0x162
- # sections 2
- timestamp 645311799, Wed Jun 13 17:16:39 1990
- symbolic header offset 284
- symbolic header size 96
- optional header 56
- flags 0x0
-
- Symbolic header, magic number = 0x7009, vstamp = 1.31:
-
- Info Offset Number Bytes
- ==== ====== ====== =====
-
- Line numbers 380 4 4 [13]
- Dense numbers 0 0 0
- Procedures Tables 384 1 52
- Local Symbols 436 16 192
- Optimization Symbols 0 0 0
- Auxiliary Symbols 628 39 156
- Local Strings 784 80 80
- External Strings 864 144 144
- File Tables 1008 2 144
- Relative Files 0 0 0
- External Symbols 1152 20 320
-
- File #0, "hello2.c"
-
- Name index = 1 Readin = No
- Merge = No Endian = LITTLE
- Debug level = G2 Language = C
- Adr = 0x00000000
-
- Info Start Number Size Offset
- ==== ===== ====== ==== ======
- Local strings 0 15 15 784
- Local symbols 0 6 72 436
- Line numbers 0 13 13 380
- Optimization symbols 0 0 0 0
- Procedures 0 1 52 384
- Auxiliary symbols 0 14 56 628
- Relative Files 0 0 0 0
-
- There are 6 local symbols, starting at 436
-
- Symbol# 0: "hello2.c"
- End+1 symbol = 6
- String index = 1
- Storage class = Text Index = 6
- Symbol type = File Value = 0
-
- Symbol# 1: "main"
- End+1 symbol = 5
- Type = int
- String index = 10
- Storage class = Text Index = 12
- Symbol type = Proc Value = 0
-
- Symbol# 2: ""
- End+1 symbol = 4
- String index = 0
- Storage class = Text Index = 4
- Symbol type = Block Value = 8
-
- Symbol# 3: ""
- First symbol = 2
- String index = 0
- Storage class = Text Index = 2
- Symbol type = End Value = 28
-
- Symbol# 4: "main"
- First symbol = 1
- String index = 10
- Storage class = Text Index = 1
- Symbol type = End Value = 52
-
- Symbol# 5: "hello2.c"
- First symbol = 0
- String index = 1
- Storage class = Text Index = 0
- Symbol type = End Value = 0
-
- There are 14 auxiliary table entries, starting at 628.
-
- * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
- * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
- * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
- * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
- * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
- * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
- * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
- * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
- * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
- * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
- * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
- * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
- #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
- #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
-
- There are 1 procedure descriptor entries, starting at 0.
-
- Procedure descriptor 0:
- Name index = 10 Name = "main"
- .mask 0x80000000,-4 .fmask 0x00000000,0
- .frame $29,24,$31
- Opt. start = -1 Symbols start = 1
- First line # = 3 Last line # = 6
- Line Offset = 0 Address = 0x00000000
-
- There are 4 bytes holding line numbers, starting at 380.
- Line 3, delta 0, count 2
- Line 4, delta 1, count 3
- Line 5, delta 1, count 2
- Line 6, delta 1, count 6
-
- File #1, "/usr/include/stdio.h"
-
- Name index = 1 Readin = No
- Merge = Yes Endian = LITTLE
- Debug level = G2 Language = C
- Adr = 0x00000000
-
- Info Start Number Size Offset
- ==== ===== ====== ==== ======
- Local strings 15 65 65 799
- Local symbols 6 10 120 508
- Line numbers 0 0 0 380
- Optimization symbols 0 0 0 0
- Procedures 1 0 0 436
- Auxiliary symbols 14 25 100 684
- Relative Files 0 0 0 0
-
- There are 10 local symbols, starting at 442
-
- Symbol# 0: "/usr/include/stdio.h"
- End+1 symbol = 10
- String index = 1
- Storage class = Text Index = 10
- Symbol type = File Value = 0
-
- Symbol# 1: "_iobuf"
- End+1 symbol = 9
- String index = 22
- Storage class = Info Index = 9
- Symbol type = Block Value = 20
-
- Symbol# 2: "_cnt"
- Type = int
- String index = 29
- Storage class = Info Index = 4
- Symbol type = Member Value = 0
-
- Symbol# 3: "_ptr"
- Type = ptr to char
- String index = 34
- Storage class = Info Index = 15
- Symbol type = Member Value = 32
-
- Symbol# 4: "_base"
- Type = ptr to char
- String index = 39
- Storage class = Info Index = 16
- Symbol type = Member Value = 64
-
- Symbol# 5: "_bufsiz"
- Type = int
- String index = 45
- Storage class = Info Index = 4
- Symbol type = Member Value = 96
-
- Symbol# 6: "_flag"
- Type = short
- String index = 53
- Storage class = Info Index = 3
- Symbol type = Member Value = 128
-
- Symbol# 7: "_file"
- Type = char
- String index = 59
- Storage class = Info Index = 2
- Symbol type = Member Value = 144
-
- Symbol# 8: ""
- First symbol = 1
- String index = 0
- Storage class = Info Index = 1
- Symbol type = End Value = 0
-
- Symbol# 9: "/usr/include/stdio.h"
- First symbol = 0
- String index = 1
- Storage class = Text Index = 0
- Symbol type = End Value = 0
-
- There are 25 auxiliary table entries, starting at 642.
-
- * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
- #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
- #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
- * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
- * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
- * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
- * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
- * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
- * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
- * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
- * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
- * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
- * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
- * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
- * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
- * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
- * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
- * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
- * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
- * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
- * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
- * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
- * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
- * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
- * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
-
- There are 0 procedure descriptor entries, starting at 1.
-
- There are 20 external symbols, starting at 1152
-
- Symbol# 0: "_iob"
- Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
- String index = 0 Ifd = 1
- Storage class = Nil Index = 17
- Symbol type = Global Value = 60
-
- Symbol# 1: "fopen"
- String index = 5 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 2: "fdopen"
- String index = 11 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 3: "freopen"
- String index = 18 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 4: "popen"
- String index = 26 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 5: "tmpfile"
- String index = 32 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 6: "ftell"
- String index = 40 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 7: "rewind"
- String index = 46 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 8: "setbuf"
- String index = 53 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 9: "setbuffer"
- String index = 60 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 10: "setlinebuf"
- String index = 70 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 11: "fgets"
- String index = 81 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 12: "gets"
- String index = 87 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 13: "ctermid"
- String index = 92 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 14: "cuserid"
- String index = 100 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 15: "tempnam"
- String index = 108 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 16: "tmpnam"
- String index = 116 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 17: "sprintf"
- String index = 123 Ifd = 1
- Storage class = Nil Index = 1048575
- Symbol type = Proc Value = 0
-
- Symbol# 18: "main"
- Type = int
- String index = 131 Ifd = 0
- Storage class = Text Index = 1
- Symbol type = Proc Value = 0
-
- Symbol# 19: "printf"
- String index = 136 Ifd = 0
- Storage class = Undefined Index = 1048575
- Symbol type = Proc Value = 0
-
- The following auxiliary table entries were unused:
-
- #0 0 0x00000000 void
- #2 8 0x00000008 char
- #3 16 0x00000010 short
- #4 24 0x00000018 int
- #5 32 0x00000020 long
- #6 40 0x00000028 float
- #7 44 0x0000002c double
- #8 12 0x0000000c unsigned char
- #9 20 0x00000014 unsigned short
- #10 28 0x0000001c unsigned int
- #11 36 0x00000024 unsigned long
- #14 0 0x00000000 void
- #15 24 0x00000018 int
- #19 32 0x00000020 long
- #20 40 0x00000028 float
- #21 44 0x0000002c double
- #22 12 0x0000000c unsigned char
- #23 20 0x00000014 unsigned short
- #24 28 0x0000001c unsigned int
- #25 36 0x00000024 unsigned long
- #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
-\f
-*/
-/* Redefinition of of storage classes as an enumeration for better
- debugging. */
-
-typedef enum sc {
- sc_Nil = scNil, /* no storage class */
- sc_Text = scText, /* text symbol */
- sc_Data = scData, /* initialized data symbol */
- sc_Bss = scBss, /* un-initialized data symbol */
- sc_Register = scRegister, /* value of symbol is register number */
- sc_Abs = scAbs, /* value of symbol is absolute */
- sc_Undefined = scUndefined, /* who knows? */
- sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
- sc_Bits = scBits, /* this is a bit field */
- sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
- sc_RegImage = scRegImage, /* register value saved on stack */
- sc_Info = scInfo, /* symbol contains debugger information */
- sc_UserStruct = scUserStruct, /* addr in struct user for current process */
- sc_SData = scSData, /* load time only small data */
- sc_SBss = scSBss, /* load time only small common */
- sc_RData = scRData, /* load time only read only data */
- sc_Var = scVar, /* Var parameter (fortran,pascal) */
- sc_Common = scCommon, /* common variable */
- sc_SCommon = scSCommon, /* small common */
- sc_VarRegister = scVarRegister, /* Var parameter in a register */
- sc_Variant = scVariant, /* Variant record */
- sc_SUndefined = scSUndefined, /* small undefined(external) data */
- sc_Init = scInit, /* .init section symbol */
- sc_Max = scMax /* Max storage class+1 */
-} sc_t;
-
-/* Redefinition of symbol type. */
-
-typedef enum st {
- st_Nil = stNil, /* Nuthin' special */
- st_Global = stGlobal, /* external symbol */
- st_Static = stStatic, /* static */
- st_Param = stParam, /* procedure argument */
- st_Local = stLocal, /* local variable */
- st_Label = stLabel, /* label */
- st_Proc = stProc, /* " " Procedure */
- st_Block = stBlock, /* beginning of block */
- st_End = stEnd, /* end (of anything) */
- st_Member = stMember, /* member (of anything - struct/union/enum */
- st_Typedef = stTypedef, /* type definition */
- st_File = stFile, /* file name */
- st_RegReloc = stRegReloc, /* register relocation */
- st_Forward = stForward, /* forwarding address */
- st_StaticProc = stStaticProc, /* load time only static procs */
- st_Constant = stConstant, /* const */
- st_Str = stStr, /* string */
- st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
- st_Expr = stExpr, /* 2+2 vs. 4 */
- st_Type = stType, /* post-coercion SER */
- st_Max = stMax /* max type+1 */
-} st_t;
-
-/* Redefinition of type qualifiers. */
-
-typedef enum tq {
- tq_Nil = tqNil, /* bt is what you see */
- tq_Ptr = tqPtr, /* pointer */
- tq_Proc = tqProc, /* procedure */
- tq_Array = tqArray, /* duh */
- tq_Far = tqFar, /* longer addressing - 8086/8 land */
- tq_Vol = tqVol, /* volatile */
- tq_Max = tqMax /* Max type qualifier+1 */
-} tq_t;
-
-/* Redefinition of basic types. */
-
-typedef enum bt {
- bt_Nil = btNil, /* undefined */
- bt_Adr = btAdr, /* address - integer same size as pointer */
- bt_Char = btChar, /* character */
- bt_UChar = btUChar, /* unsigned character */
- bt_Short = btShort, /* short */
- bt_UShort = btUShort, /* unsigned short */
- bt_Int = btInt, /* int */
- bt_UInt = btUInt, /* unsigned int */
- bt_Long = btLong, /* long */
- bt_ULong = btULong, /* unsigned long */
- bt_Float = btFloat, /* float (real) */
- bt_Double = btDouble, /* Double (real) */
- bt_Struct = btStruct, /* Structure (Record) */
- bt_Union = btUnion, /* Union (variant) */
- bt_Enum = btEnum, /* Enumerated */
- bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
- bt_Range = btRange, /* subrange of int */
- bt_Set = btSet, /* pascal sets */
- bt_Complex = btComplex, /* fortran complex */
- bt_DComplex = btDComplex, /* fortran double complex */
- bt_Indirect = btIndirect, /* forward or unnamed typedef */
- bt_FixedDec = btFixedDec, /* Fixed Decimal */
- bt_FloatDec = btFloatDec, /* Float Decimal */
- bt_String = btString, /* Varying Length Character String */
- bt_Bit = btBit, /* Aligned Bit String */
- bt_Picture = btPicture, /* Picture */
- bt_Void = btVoid, /* Void */
- bt_Max = btMax /* Max basic type+1 */
-} bt_t;
-
-#define N_TQ itqMax
-
-/* States for whether to hash type or not. */
-typedef enum hash_state {
- hash_no = 0, /* don't hash type */
- hash_yes = 1, /* ok to hash type, or use previous hash */
- hash_record = 2 /* ok to record hash, but don't use prev. */
-} hash_state_t;
-
-/* Types of different sized allocation requests. */
-enum alloc_type {
- alloc_type_none, /* dummy value */
- alloc_type_scope, /* nested scopes linked list */
- alloc_type_vlinks, /* glue linking pages in varray */
- alloc_type_shash, /* string hash element */
- alloc_type_thash, /* type hash element */
- alloc_type_tag, /* struct/union/tag element */
- alloc_type_forward, /* element to hold unknown tag */
- alloc_type_thead, /* head of type hash list */
- alloc_type_varray, /* general varray allocation */
- alloc_type_lineno, /* line number list */
- alloc_type_last /* last+1 element for array bounds */
-};
-
-/* Types of auxiliary type information. */
-enum aux_type {
- aux_tir, /* TIR type information */
- aux_rndx, /* relative index into symbol table */
- aux_dnLow, /* low dimension */
- aux_dnHigh, /* high dimension */
- aux_isym, /* symbol table index (end of proc) */
- aux_iss, /* index into string space (not used) */
- aux_width, /* width for non-default sized struc fields */
- aux_count /* count of ranges for variant arm */
-};
-\f
-/* Structures to provide n-number of virtual arrays, each of which can
- grow linearly, and which are written in the object file as
- sequential pages. On systems with a BSD malloc, the
- MAX_CLUSTER_PAGES should be 1 less than a power of two, since
- malloc adds it's overhead, and rounds up to the next power of 2.
- Pages are linked together via a linked list.
-
- If PAGE_SIZE is > 4096, the string length in the shash_t structure
- can't be represented (assuming there are strings > 4096 bytes). */
-
-#ifndef PAGE_SIZE
-#define PAGE_SIZE 4096 /* size of varray pages */
-#endif
-
-#define PAGE_USIZE ((unsigned long) PAGE_SIZE)
-
-
-#ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
-#define MAX_CLUSTER_PAGES 63
-#endif
-
-
-/* Linked list connecting separate page allocations. */
-typedef struct vlinks {
- struct vlinks *prev; /* previous set of pages */
- struct vlinks *next; /* next set of pages */
- union page *datum; /* start of page */
- unsigned long start_index; /* starting index # of page */
-} vlinks_t;
-
-
-/* Virtual array header. */
-typedef struct varray {
- vlinks_t *first; /* first page link */
- vlinks_t *last; /* last page link */
- unsigned long num_allocated; /* # objects allocated */
- unsigned short object_size; /* size in bytes of each object */
- unsigned short objects_per_page; /* # objects that can fit on a page */
- unsigned short objects_last_page; /* # objects allocated on last page */
-} varray_t;
-
-#ifndef MALLOC_CHECK
-#define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
-#else
-#define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
-#endif
-
-#define INIT_VARRAY(type) { /* macro to initialize a varray */ \
- (vlinks_t *)0, /* first */ \
- (vlinks_t *)0, /* last */ \
- 0, /* num_allocated */ \
- sizeof (type), /* object_size */ \
- OBJECTS_PER_PAGE (type), /* objects_per_page */ \
- OBJECTS_PER_PAGE (type), /* objects_last_page */ \
-}
-
-
-/* Master type for indexes within the symbol table. */
-typedef unsigned long symint_t;
-
-
-/* Linked list support for nested scopes (file, block, structure, etc.). */
-typedef struct scope {
- struct scope *prev; /* previous scope level */
- struct scope *free; /* free list pointer */
- struct localsym *lsym; /* pointer to local symbol node */
- st_t type; /* type of the node */
-} scope_t;
-
-
-/* For a local symbol we store a gas symbol as well as the debugging
- information we generate. The gas symbol will be NULL if this is
- only a debugging symbol. */
-typedef struct localsym {
- const char *name; /* symbol name */
- symbolS *as_sym; /* symbol as seen by gas */
- struct efdr *file_ptr; /* file pointer */
- struct ecoff_proc *proc_ptr; /* proc pointer */
- struct localsym *begin_ptr; /* symbol at start of block */
- struct ecoff_aux *index_ptr; /* index value to be filled in */
- struct forward *forward_ref; /* forward references to this symbol */
- long sym_index; /* final symbol index */
- SYMR ecoff_sym; /* ECOFF debugging symbol */
-} localsym_t;
-
-
-/* For aux information we keep the type and the data. */
-typedef struct ecoff_aux {
- enum aux_type type; /* aux type */
- AUXU data; /* aux data */
-} aux_t;
-
-/* For a procedure we store the gas symbol as well as the PDR
- debugging information. */
-typedef struct ecoff_proc {
- localsym_t *sym; /* associated symbol */
- PDR pdr; /* ECOFF debugging info */
-} proc_t;
-
-/* Number of proc_t structures allocated. */
-static unsigned long proc_cnt;
-
-
-/* Forward reference list for tags referenced, but not yet defined. */
-typedef struct forward {
- struct forward *next; /* next forward reference */
- struct forward *free; /* free list pointer */
- aux_t *ifd_ptr; /* pointer to store file index */
- aux_t *index_ptr; /* pointer to store symbol index */
-} forward_t;
-
-
-/* Linked list support for tags. The first tag in the list is always
- the current tag for that block. */
-typedef struct tag {
- struct tag *free; /* free list pointer */
- struct shash *hash_ptr; /* pointer to the hash table head */
- struct tag *same_name; /* tag with same name in outer scope */
- struct tag *same_block; /* next tag defined in the same block. */
- struct forward *forward_ref; /* list of forward references */
- bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
- symint_t ifd; /* file # tag defined in */
- localsym_t *sym; /* file's local symbols */
-} tag_t;
-
-
-/* Head of a block's linked list of tags. */
-typedef struct thead {
- struct thead *prev; /* previous block */
- struct thead *free; /* free list pointer */
- struct tag *first_tag; /* first tag in block defined */
-} thead_t;
-
-
-/* Union containing pointers to each the small structures which are freed up. */
-typedef union small_free {
- scope_t *f_scope; /* scope structure */
- thead_t *f_thead; /* tag head structure */
- tag_t *f_tag; /* tag element structure */
- forward_t *f_forward; /* forward tag reference */
-} small_free_t;
-
-
-/* String hash table entry. */
-
-typedef struct shash {
- char *string; /* string we are hashing */
- symint_t indx; /* index within string table */
- EXTR *esym_ptr; /* global symbol pointer */
- localsym_t *sym_ptr; /* local symbol pointer */
- localsym_t *end_ptr; /* symbol pointer to end block */
- tag_t *tag_ptr; /* tag pointer */
- proc_t *proc_ptr; /* procedure descriptor pointer */
-} shash_t;
-
-
-/* Type hash table support. The size of the hash table must fit
- within a page with the other extended file descriptor information.
- Because unique types which are hashed are fewer in number than
- strings, we use a smaller hash value. */
-
-#define HASHBITS 30
-
-#ifndef THASH_SIZE
-#define THASH_SIZE 113
-#endif
-
-typedef struct thash {
- struct thash *next; /* next hash value */
- AUXU type; /* type we are hashing */
- symint_t indx; /* index within string table */
-} thash_t;
-
-
-/* Extended file descriptor that contains all of the support necessary
- to add things to each file separately. */
-typedef struct efdr {
- FDR fdr; /* File header to be written out */
- FDR *orig_fdr; /* original file header */
- char *name; /* filename */
- symint_t void_type; /* aux. pointer to 'void' type */
- symint_t int_type; /* aux. pointer to 'int' type */
- scope_t *cur_scope; /* current nested scopes */
- symint_t file_index; /* current file number */
- int nested_scopes; /* # nested scopes */
- varray_t strings; /* local strings */
- varray_t symbols; /* local symbols */
- varray_t procs; /* procedures */
- varray_t aux_syms; /* auxiliary symbols */
- struct efdr *next_file; /* next file descriptor */
- /* string/type hash tables */
- struct hash_control *str_hash; /* string hash table */
- thash_t *thash_head[THASH_SIZE];
-} efdr_t;
-
-/* Pre-initialized extended file structure. */
-static const efdr_t init_file =
-{
- { /* FDR structure */
- 0, /* adr: memory address of beginning of file */
- 0, /* rss: file name (of source, if known) */
- 0, /* issBase: file's string space */
- 0, /* cbSs: number of bytes in the ss */
- 0, /* isymBase: beginning of symbols */
- 0, /* csym: count file's of symbols */
- 0, /* ilineBase: file's line symbols */
- 0, /* cline: count of file's line symbols */
- 0, /* ioptBase: file's optimization entries */
- 0, /* copt: count of file's optimization entries */
- 0, /* ipdFirst: start of procedures for this file */
- 0, /* cpd: count of procedures for this file */
- 0, /* iauxBase: file's auxiliary entries */
- 0, /* caux: count of file's auxiliary entries */
- 0, /* rfdBase: index into the file indirect table */
- 0, /* crfd: count file indirect entries */
- langC, /* lang: language for this file */
- 0, /* fMerge: whether this file can be merged */
- 0, /* fReadin: true if read in (not just created) */
-#ifdef TARGET_BYTES_BIG_ENDIAN
- 1, /* fBigendian: if 1, compiled on big endian machine */
-#else
- 0, /* fBigendian: if 1, compiled on big endian machine */
-#endif
- GLEVEL_2, /* glevel: level this file was compiled with */
- 0, /* reserved: reserved for future use */
- 0, /* cbLineOffset: byte offset from header for this file ln's */
- 0, /* cbLine: size of lines for this file */
- },
-
- (FDR *)0, /* orig_fdr: original file header pointer */
- (char *)0, /* name: pointer to filename */
- 0, /* void_type: ptr to aux node for void type */
- 0, /* int_type: ptr to aux node for int type */
- (scope_t *)0, /* cur_scope: current scope being processed */
- 0, /* file_index: current file # */
- 0, /* nested_scopes: # nested scopes */
- INIT_VARRAY (char), /* strings: local string varray */
- INIT_VARRAY (localsym_t), /* symbols: local symbols varray */
- INIT_VARRAY (proc_t), /* procs: procedure varray */
- INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */
-
- (struct efdr *)0, /* next_file: next file structure */
-
- (struct hash_control *)0, /* str_hash: string hash table */
- { 0 }, /* thash_head: type hash table */
-};
-
-
-static efdr_t *first_file; /* first file descriptor */
-static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
-
-
-/* Line number information is kept in a list until the assembly is
- finished. */
-typedef struct lineno_list {
- struct lineno_list *next; /* next element in list */
- efdr_t *file; /* file this line is in */
- proc_t *proc; /* procedure this line is in */
- fragS *frag; /* fragment this line number is in */
- unsigned long paddr; /* offset within fragment */
- long lineno; /* actual line number */
-} lineno_list_t;
-
-static lineno_list_t *first_lineno;
-static lineno_list_t **last_lineno_ptr = &first_lineno;
-
-/* Sometimes there will be some .loc statements before a .ent. We
- keep them in this list so that we can fill in the procedure pointer
- after we see the .ent. */
-static lineno_list_t *noproc_lineno;
-
-/* Union of various things that are held in pages. */
-typedef union page {
- char byte [ PAGE_SIZE ];
- unsigned char ubyte [ PAGE_SIZE ];
- efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
- FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
- proc_t proc [ PAGE_SIZE / sizeof (proc_t) ];
- localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ];
- aux_t aux [ PAGE_SIZE / sizeof (aux_t) ];
- DNR dense [ PAGE_SIZE / sizeof (DNR) ];
- scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
- vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
- shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
- thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
- tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
- forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
- thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
- lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ];
-} page_t;
-
-
-/* Structure holding allocation information for small sized structures. */
-typedef struct alloc_info {
- char *alloc_name; /* name of this allocation type (must be first) */
- page_t *cur_page; /* current page being allocated from */
- small_free_t free_list; /* current free list if any */
- int unallocated; /* number of elements unallocated on page */
- int total_alloc; /* total number of allocations */
- int total_free; /* total number of frees */
- int total_pages; /* total number of pages allocated */
-} alloc_info_t;
-
-
-/* Type information collected together. */
-typedef struct type_info {
- bt_t basic_type; /* basic type */
- int orig_type; /* original COFF-based type */
- int num_tq; /* # type qualifiers */
- int num_dims; /* # dimensions */
- int num_sizes; /* # sizes */
- int extra_sizes; /* # extra sizes not tied with dims */
- tag_t * tag_ptr; /* tag pointer */
- int bitfield; /* symbol is a bitfield */
- tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
- symint_t dimensions [N_TQ]; /* dimensions for each array */
- symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
- struct/union/enum + bitfield size */
-} type_info_t;
-
-/* Pre-initialized type_info struct. */
-static const type_info_t type_info_init = {
- bt_Nil, /* basic type */
- T_NULL, /* original COFF-based type */
- 0, /* # type qualifiers */
- 0, /* # dimensions */
- 0, /* # sizes */
- 0, /* sizes not tied with dims */
- NULL, /* ptr to tag */
- 0, /* bitfield */
- { /* type qualifiers */
- tq_Nil,
- tq_Nil,
- tq_Nil,
- tq_Nil,
- tq_Nil,
- tq_Nil,
- },
- { /* dimensions */
- 0,
- 0,
- 0,
- 0,
- 0,
- 0
- },
- { /* sizes */
- 0,
- 0,
- 0,
- 0,
- 0,
- 0,
- 0,
- 0,
- },
-};
-
-/* Global hash table for the tags table and global table for file
- descriptors. */
-
-static varray_t file_desc = INIT_VARRAY (efdr_t);
-
-static struct hash_control *tag_hash;
-
-/* Static types for int and void. Also, remember the last function's
- type (which is set up when we encounter the declaration for the
- function, and used when the end block for the function is emitted. */
-
-static type_info_t int_type_info;
-static type_info_t void_type_info;
-static type_info_t last_func_type_info;
-static symbolS *last_func_sym_value;
-
-
-/* Convert COFF basic type to ECOFF basic type. The T_NULL type
- really should use bt_Void, but this causes the current ecoff GDB to
- issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
- 2.0) doesn't understand it, even though the compiler generates it.
- Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
- suite, but for now go with what works.
-
- It would make sense for the .type and .scl directives to use the
- ECOFF numbers directly, rather than using the COFF numbers and
- mapping them. Unfortunately, this is historically what mips-tfile
- expects, and changing gcc now would be a considerable pain (the
- native compiler generates debugging information internally, rather
- than via the assembler, so it will never use .type or .scl). */
-
-static const bt_t map_coff_types[] = {
- bt_Nil, /* T_NULL */
- bt_Nil, /* T_ARG */
- bt_Char, /* T_CHAR */
- bt_Short, /* T_SHORT */
- bt_Int, /* T_INT */
- bt_Long, /* T_LONG */
- bt_Float, /* T_FLOAT */
- bt_Double, /* T_DOUBLE */
- bt_Struct, /* T_STRUCT */
- bt_Union, /* T_UNION */
- bt_Enum, /* T_ENUM */
- bt_Enum, /* T_MOE */
- bt_UChar, /* T_UCHAR */
- bt_UShort, /* T_USHORT */
- bt_UInt, /* T_UINT */
- bt_ULong /* T_ULONG */
-};
-
-/* Convert COFF storage class to ECOFF storage class. */
-static const sc_t map_coff_storage[] = {
- sc_Nil, /* 0: C_NULL */
- sc_Abs, /* 1: C_AUTO auto var */
- sc_Undefined, /* 2: C_EXT external */
- sc_Data, /* 3: C_STAT static */
- sc_Register, /* 4: C_REG register */
- sc_Undefined, /* 5: C_EXTDEF ??? */
- sc_Text, /* 6: C_LABEL label */
- sc_Text, /* 7: C_ULABEL user label */
- sc_Info, /* 8: C_MOS member of struct */
- sc_Abs, /* 9: C_ARG argument */
- sc_Info, /* 10: C_STRTAG struct tag */
- sc_Info, /* 11: C_MOU member of union */
- sc_Info, /* 12: C_UNTAG union tag */
- sc_Info, /* 13: C_TPDEF typedef */
- sc_Data, /* 14: C_USTATIC ??? */
- sc_Info, /* 15: C_ENTAG enum tag */
- sc_Info, /* 16: C_MOE member of enum */
- sc_Register, /* 17: C_REGPARM register parameter */
- sc_Bits, /* 18; C_FIELD bitfield */
- sc_Nil, /* 19 */
- sc_Nil, /* 20 */
- sc_Nil, /* 21 */
- sc_Nil, /* 22 */
- sc_Nil, /* 23 */
- sc_Nil, /* 24 */
- sc_Nil, /* 25 */
- sc_Nil, /* 26 */
- sc_Nil, /* 27 */
- sc_Nil, /* 28 */
- sc_Nil, /* 29 */
- sc_Nil, /* 30 */
- sc_Nil, /* 31 */
- sc_Nil, /* 32 */
- sc_Nil, /* 33 */
- sc_Nil, /* 34 */
- sc_Nil, /* 35 */
- sc_Nil, /* 36 */
- sc_Nil, /* 37 */
- sc_Nil, /* 38 */
- sc_Nil, /* 39 */
- sc_Nil, /* 40 */
- sc_Nil, /* 41 */
- sc_Nil, /* 42 */
- sc_Nil, /* 43 */
- sc_Nil, /* 44 */
- sc_Nil, /* 45 */
- sc_Nil, /* 46 */
- sc_Nil, /* 47 */
- sc_Nil, /* 48 */
- sc_Nil, /* 49 */
- sc_Nil, /* 50 */
- sc_Nil, /* 51 */
- sc_Nil, /* 52 */
- sc_Nil, /* 53 */
- sc_Nil, /* 54 */
- sc_Nil, /* 55 */
- sc_Nil, /* 56 */
- sc_Nil, /* 57 */
- sc_Nil, /* 58 */
- sc_Nil, /* 59 */
- sc_Nil, /* 60 */
- sc_Nil, /* 61 */
- sc_Nil, /* 62 */
- sc_Nil, /* 63 */
- sc_Nil, /* 64 */
- sc_Nil, /* 65 */
- sc_Nil, /* 66 */
- sc_Nil, /* 67 */
- sc_Nil, /* 68 */
- sc_Nil, /* 69 */
- sc_Nil, /* 70 */
- sc_Nil, /* 71 */
- sc_Nil, /* 72 */
- sc_Nil, /* 73 */
- sc_Nil, /* 74 */
- sc_Nil, /* 75 */
- sc_Nil, /* 76 */
- sc_Nil, /* 77 */
- sc_Nil, /* 78 */
- sc_Nil, /* 79 */
- sc_Nil, /* 80 */
- sc_Nil, /* 81 */
- sc_Nil, /* 82 */
- sc_Nil, /* 83 */
- sc_Nil, /* 84 */
- sc_Nil, /* 85 */
- sc_Nil, /* 86 */
- sc_Nil, /* 87 */
- sc_Nil, /* 88 */
- sc_Nil, /* 89 */
- sc_Nil, /* 90 */
- sc_Nil, /* 91 */
- sc_Nil, /* 92 */
- sc_Nil, /* 93 */
- sc_Nil, /* 94 */
- sc_Nil, /* 95 */
- sc_Nil, /* 96 */
- sc_Nil, /* 97 */
- sc_Nil, /* 98 */
- sc_Nil, /* 99 */
- sc_Text, /* 100: C_BLOCK block start/end */
- sc_Text, /* 101: C_FCN function start/end */
- sc_Info, /* 102: C_EOS end of struct/union/enum */
- sc_Nil, /* 103: C_FILE file start */
- sc_Nil, /* 104: C_LINE line number */
- sc_Nil, /* 105: C_ALIAS combined type info */
- sc_Nil, /* 106: C_HIDDEN ??? */
-};
-
-/* Convert COFF storage class to ECOFF symbol type. */
-static const st_t map_coff_sym_type[] = {
- st_Nil, /* 0: C_NULL */
- st_Local, /* 1: C_AUTO auto var */
- st_Global, /* 2: C_EXT external */
- st_Static, /* 3: C_STAT static */
- st_Local, /* 4: C_REG register */
- st_Global, /* 5: C_EXTDEF ??? */
- st_Label, /* 6: C_LABEL label */
- st_Label, /* 7: C_ULABEL user label */
- st_Member, /* 8: C_MOS member of struct */
- st_Param, /* 9: C_ARG argument */
- st_Block, /* 10: C_STRTAG struct tag */
- st_Member, /* 11: C_MOU member of union */
- st_Block, /* 12: C_UNTAG union tag */
- st_Typedef, /* 13: C_TPDEF typedef */
- st_Static, /* 14: C_USTATIC ??? */
- st_Block, /* 15: C_ENTAG enum tag */
- st_Member, /* 16: C_MOE member of enum */
- st_Param, /* 17: C_REGPARM register parameter */
- st_Member, /* 18; C_FIELD bitfield */
- st_Nil, /* 19 */
- st_Nil, /* 20 */
- st_Nil, /* 21 */
- st_Nil, /* 22 */
- st_Nil, /* 23 */
- st_Nil, /* 24 */
- st_Nil, /* 25 */
- st_Nil, /* 26 */
- st_Nil, /* 27 */
- st_Nil, /* 28 */
- st_Nil, /* 29 */
- st_Nil, /* 30 */
- st_Nil, /* 31 */
- st_Nil, /* 32 */
- st_Nil, /* 33 */
- st_Nil, /* 34 */
- st_Nil, /* 35 */
- st_Nil, /* 36 */
- st_Nil, /* 37 */
- st_Nil, /* 38 */
- st_Nil, /* 39 */
- st_Nil, /* 40 */
- st_Nil, /* 41 */
- st_Nil, /* 42 */
- st_Nil, /* 43 */
- st_Nil, /* 44 */
- st_Nil, /* 45 */
- st_Nil, /* 46 */
- st_Nil, /* 47 */
- st_Nil, /* 48 */
- st_Nil, /* 49 */
- st_Nil, /* 50 */
- st_Nil, /* 51 */
- st_Nil, /* 52 */
- st_Nil, /* 53 */
- st_Nil, /* 54 */
- st_Nil, /* 55 */
- st_Nil, /* 56 */
- st_Nil, /* 57 */
- st_Nil, /* 58 */
- st_Nil, /* 59 */
- st_Nil, /* 60 */
- st_Nil, /* 61 */
- st_Nil, /* 62 */
- st_Nil, /* 63 */
- st_Nil, /* 64 */
- st_Nil, /* 65 */
- st_Nil, /* 66 */
- st_Nil, /* 67 */
- st_Nil, /* 68 */
- st_Nil, /* 69 */
- st_Nil, /* 70 */
- st_Nil, /* 71 */
- st_Nil, /* 72 */
- st_Nil, /* 73 */
- st_Nil, /* 74 */
- st_Nil, /* 75 */
- st_Nil, /* 76 */
- st_Nil, /* 77 */
- st_Nil, /* 78 */
- st_Nil, /* 79 */
- st_Nil, /* 80 */
- st_Nil, /* 81 */
- st_Nil, /* 82 */
- st_Nil, /* 83 */
- st_Nil, /* 84 */
- st_Nil, /* 85 */
- st_Nil, /* 86 */
- st_Nil, /* 87 */
- st_Nil, /* 88 */
- st_Nil, /* 89 */
- st_Nil, /* 90 */
- st_Nil, /* 91 */
- st_Nil, /* 92 */
- st_Nil, /* 93 */
- st_Nil, /* 94 */
- st_Nil, /* 95 */
- st_Nil, /* 96 */
- st_Nil, /* 97 */
- st_Nil, /* 98 */
- st_Nil, /* 99 */
- st_Block, /* 100: C_BLOCK block start/end */
- st_Proc, /* 101: C_FCN function start/end */
- st_End, /* 102: C_EOS end of struct/union/enum */
- st_File, /* 103: C_FILE file start */
- st_Nil, /* 104: C_LINE line number */
- st_Nil, /* 105: C_ALIAS combined type info */
- st_Nil, /* 106: C_HIDDEN ??? */
-};
-
-
-/* Keep track of different sized allocation requests. */
-static alloc_info_t alloc_counts[ (int)alloc_type_last ];
-\f
-/* Various statics. */
-static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
-static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */
-static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */
-static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */
-#ifdef ECOFF_DEBUG
-static int debug = 0; /* trace functions */
-#endif
-static int stabs_seen = 0; /* != 0 if stabs have been seen */
-
-
-/* Pseudo symbol to use when putting stabs into the symbol table. */
-#ifndef STABS_SYMBOL
-#define STABS_SYMBOL "@stabs"
-#endif
-
-static char stabs_symbol[] = STABS_SYMBOL;
-\f
-/* Prototypes for functions defined in this file. */
-
-static void add_varray_page PARAMS ((varray_t *vp));
-static symint_t add_string PARAMS ((varray_t *vp,
- struct hash_control *hash_tbl,
- const char *str,
- shash_t **ret_hash));
-static localsym_t *add_ecoff_symbol PARAMS ((const char *str, st_t type,
- sc_t storage, symbolS *sym,
- symint_t value,
- symint_t indx));
-static symint_t add_aux_sym_symint PARAMS ((symint_t aux_word));
-static symint_t add_aux_sym_rndx PARAMS ((int file_index,
- symint_t sym_index));
-static symint_t add_aux_sym_tir PARAMS ((type_info_t *t,
- hash_state_t state,
- thash_t **hash_tbl));
-static tag_t *get_tag PARAMS ((const char *tag, localsym_t *sym,
- bt_t basic_type));
-static void add_unknown_tag PARAMS ((tag_t *ptag));
-static void add_procedure PARAMS ((char *func));
-static void add_file PARAMS ((const char *file_name, int indx));
-#ifdef ECOFF_DEBUG
-static char *sc_to_string PARAMS ((sc_t storage_class));
-static char *st_to_string PARAMS ((st_t symbol_type));
-#endif
-static void obj_ecoff_def PARAMS ((int));
-static void obj_ecoff_dim PARAMS ((int));
-static void obj_ecoff_endef PARAMS ((int));
-static void obj_ecoff_file PARAMS ((int));
-static void obj_ecoff_scl PARAMS ((int));
-static void obj_ecoff_size PARAMS ((int));
-static void obj_ecoff_tag PARAMS ((int));
-static void obj_ecoff_type PARAMS ((int));
-static void obj_ecoff_val PARAMS ((int));
-static void obj_ecoff_ent PARAMS ((int));
-static void obj_ecoff_begin PARAMS ((int));
-static void obj_ecoff_bend PARAMS ((int));
-static void obj_ecoff_end PARAMS ((int));
-static void obj_ecoff_fmask PARAMS ((int));
-static void obj_ecoff_frame PARAMS ((int));
-static void obj_ecoff_loc PARAMS ((int));
-static void obj_ecoff_mask PARAMS ((int));
-static void mark_stabs PARAMS ((int));
-static char *ecoff_add_bytes PARAMS ((char **buf, char **bufend,
- char *bufptr, unsigned long need));
-static unsigned long ecoff_padding_adjust PARAMS ((char **buf,
- char **bufend,
- unsigned long offset,
- char **bufptrptr));
-static unsigned long ecoff_build_lineno PARAMS ((char **buf, char **bufend,
- unsigned long offset,
- long *linecntptr));
-static unsigned long ecoff_build_symbols PARAMS ((char **buf, char **bufend,
- unsigned long offset,
- char **extbuf,
- char **extbufend,
- unsigned long *extoffset,
- varray_t *ext_strings,
- struct hash_control *));
-static unsigned long ecoff_build_procs PARAMS ((char **buf, char **bufend,
- unsigned long offset));
-static unsigned long ecoff_build_aux PARAMS ((char **buf, char **bufend,
- unsigned long offset));
-static unsigned long ecoff_build_strings PARAMS ((char **buf, char **bufend,
- unsigned long offset,
- varray_t *vp));
-static unsigned long ecoff_build_ss PARAMS ((char **buf, char **bufend,
- unsigned long offset));
-static unsigned long ecoff_build_fdr PARAMS ((char **buf, char **bufend,
- unsigned long offset));
-static page_t *allocate_cluster PARAMS ((unsigned long npages));
-static page_t *allocate_page PARAMS ((void));
-static scope_t *allocate_scope PARAMS ((void));
-static void free_scope PARAMS ((scope_t *ptr));
-static vlinks_t *allocate_vlinks PARAMS ((void));
-static shash_t *allocate_shash PARAMS ((void));
-static thash_t *allocate_thash PARAMS ((void));
-static tag_t *allocate_tag PARAMS ((void));
-static void free_tag PARAMS ((tag_t *ptr));
-static forward_t *allocate_forward PARAMS ((void));
-static thead_t *allocate_thead PARAMS ((void));
-static void free_thead PARAMS ((thead_t *ptr));
-static lineno_list_t *allocate_lineno_list PARAMS ((void));
-
-/* Why isn't this in some header file somewhere? In fact, is it even
- necessary? */
-#define SKIP_WHITESPACES() \
- do \
- { \
- while (*input_line_pointer == ' ' \
- || *input_line_pointer == '\t') \
- ++input_line_pointer; \
- } \
- while (0)
-\f
-/* These are the pseudo-ops we support in this file. Only those
- relating to debugging information are supported here.
-
- The following pseudo-ops from the Kane and Heinrich MIPS book
- should be defined here, but are currently unsupported: .aent,
- .bgnb, .endb, .verstamp, .vreg.
-
- The following pseudo-ops from the Kane and Heinrich MIPS book are
- MIPS CPU specific, and should be defined by tc-mips.c: .alias,
- .extern, .galive, .gjaldef, .gjrlive, .livereg, .noalias, .option,
- .rdata, .sdata, .set.
-
- The following pseudo-ops from the Kane and Heinrich MIPS book are
- not MIPS CPU specific, but are also not ECOFF specific. I have
- only listed the ones which are not already in read.c. It's not
- completely clear where these should be defined, but tc-mips.c is
- probably the most reasonable place: .asciiz, .asm0, .endr, .err,
- .half, .lab, .repeat, .struct, .weakext. */
-
-const pseudo_typeS obj_pseudo_table[] =
-{
- /* COFF style debugging information. .ln is not used; .loc is used
- instead. */
- { "def", obj_ecoff_def, 0 },
- { "dim", obj_ecoff_dim, 0 },
- { "endef", obj_ecoff_endef, 0 },
- { "file", obj_ecoff_file, 0 },
- { "scl", obj_ecoff_scl, 0 },
- { "size", obj_ecoff_size, 0 },
- { "tag", obj_ecoff_tag, 0 },
- { "type", obj_ecoff_type, 0 },
- { "val", obj_ecoff_val, 0 },
-
- /* ECOFF specific debugging information. */
- { "begin", obj_ecoff_begin, 0 },
- { "bend", obj_ecoff_bend, 0 },
- { "end", obj_ecoff_end, 0 },
- { "ent", obj_ecoff_ent, 0 },
- { "fmask", obj_ecoff_fmask, 0 },
- { "frame", obj_ecoff_frame, 0 },
- { "loc", obj_ecoff_loc, 0 },
- { "mask", obj_ecoff_mask, 0 },
-
- /* Sentinel. */
- { NULL }
-};
-\f
-/* This function is called when the assembler starts up. */
-
-void
-obj_read_begin_hook ()
-{
- tag_hash = hash_new ();
- top_tag_head = allocate_thead ();
- top_tag_head->first_tag = (tag_t *) NULL;
- top_tag_head->free = (thead_t *) NULL;
- top_tag_head->prev = cur_tag_head;
- cur_tag_head = top_tag_head;
-}
-
-/* This function is called when a symbol is created. */
-
-void
-obj_symbol_new_hook (symbolP)
- symbolS *symbolP;
-{
- if (cur_file_ptr == (efdr_t *) NULL)
- add_file ((const char *) NULL, 0);
- symbolP->ecoff_file = cur_file_ptr;
- symbolP->ecoff_symbol = 0;
- symbolP->ecoff_undefined = 0;
-}
-\f
-/* Add a page to a varray object. */
-
-static void
-add_varray_page (vp)
- varray_t *vp; /* varray to add page to */
-{
- vlinks_t *new_links = allocate_vlinks ();
-
-#ifdef MALLOC_CHECK
- if (vp->object_size > 1)
- new_links->datum = (page_t *) xcalloc (1, vp->object_size);
- else
-#endif
- new_links->datum = allocate_page ();
-
- alloc_counts[(int)alloc_type_varray].total_alloc++;
- alloc_counts[(int)alloc_type_varray].total_pages++;
-
- new_links->start_index = vp->num_allocated;
- vp->objects_last_page = 0;
-
- if (vp->first == (vlinks_t *) NULL) /* first allocation? */
- vp->first = vp->last = new_links;
- else
- { /* 2nd or greater allocation */
- new_links->prev = vp->last;
- vp->last->next = new_links;
- vp->last = new_links;
- }
-}
-\f
-/* Add a string (and null pad) to one of the string tables. */
-
-static symint_t
-add_string (vp, hash_tbl, str, ret_hash)
- varray_t *vp; /* string obstack */
- struct hash_control *hash_tbl; /* ptr to hash table */
- const char *str; /* string */
- shash_t **ret_hash; /* return hash pointer */
-{
- register unsigned long len = strlen (str);
- register shash_t *hash_ptr;
-
- if (len >= PAGE_USIZE)
- as_fatal ("String too big (%lu bytes)", len);
-
- hash_ptr = (shash_t *) hash_find (hash_tbl, str);
- if (hash_ptr == (shash_t *) NULL)
- {
- register const char *err;
-
- if (vp->objects_last_page + len >= PAGE_USIZE)
- {
- vp->num_allocated =
- ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
- add_varray_page (vp);
- }
-
- hash_ptr = allocate_shash ();
- hash_ptr->indx = vp->num_allocated;
-
- hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page];
-
- vp->objects_last_page += len + 1;
- vp->num_allocated += len + 1;
-
- strcpy (hash_ptr->string, str);
-
- err = hash_insert (hash_tbl, str, (char *) hash_ptr);
- if (err)
- as_fatal ("Inserting \"%s\" into string hash table: %s",
- str, err);
- }
-
- if (ret_hash != (shash_t **) NULL)
- *ret_hash = hash_ptr;
-
- return hash_ptr->indx;
-}
-\f
-/* Add debugging information for a symbol. */
-
-static localsym_t *
-add_ecoff_symbol (str, type, storage, sym_value, value, indx)
- const char *str; /* symbol name */
- st_t type; /* symbol type */
- sc_t storage; /* storage class */
- symbolS *sym_value; /* associated symbol. */
- symint_t value; /* value of symbol */
- symint_t indx; /* index to local/aux. syms */
-{
- localsym_t *psym;
- register scope_t *pscope;
- register thead_t *ptag_head;
- register tag_t *ptag;
- register tag_t *ptag_next;
- register varray_t *vp;
- register int scope_delta = 0;
- shash_t *hash_ptr = (shash_t *) NULL;
-
- if (cur_file_ptr == (efdr_t *) NULL)
- as_fatal ("no current file pointer");
-
- vp = &cur_file_ptr->symbols;
-
- if (vp->objects_last_page == vp->objects_per_page)
- add_varray_page (vp);
-
- psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
-
- if (str == (const char *) NULL && sym_value != (symbolS *) NULL)
- psym->name = S_GET_NAME (sym_value);
- else
- psym->name = str;
- psym->as_sym = sym_value;
- if (sym_value != (symbolS *) NULL)
- sym_value->ecoff_symbol = 1;
- psym->file_ptr = cur_file_ptr;
- psym->proc_ptr = cur_proc_ptr;
- psym->begin_ptr = (localsym_t *) NULL;
- psym->index_ptr = (aux_t *) NULL;
- psym->forward_ref = (forward_t *) NULL;
- psym->sym_index = -1;
- psym->ecoff_sym.value = value;
- psym->ecoff_sym.st = (unsigned) type;
- psym->ecoff_sym.sc = (unsigned) storage;
- psym->ecoff_sym.index = indx;
-
- /* If there is an associated symbol, we wait until the end of the
- assembly before deciding where to put the name (it may be just an
- external symbol). Otherwise, this is just a debugging symbol and
- the name should go with the current file. */
- if (sym_value == (symbolS *) NULL)
- psym->ecoff_sym.iss = ((str == (const char *) NULL)
- ? 0
- : add_string (&cur_file_ptr->strings,
- cur_file_ptr->str_hash,
- str,
- &hash_ptr));
-
- ++vp->num_allocated;
-
- if (ECOFF_IS_STAB (&psym->ecoff_sym))
- return psym;
-
- /* Save the symbol within the hash table if this is a static
- item, and it has a name. */
- if (hash_ptr != (shash_t *) NULL
- && (type == st_Global || type == st_Static || type == st_Label
- || type == st_Proc || type == st_StaticProc))
- hash_ptr->sym_ptr = psym;
-
- /* push or pop a scope if appropriate. */
- switch (type)
- {
- default:
- break;
-
- case st_File: /* beginning of file */
- case st_Proc: /* procedure */
- case st_StaticProc: /* static procedure */
- case st_Block: /* begin scope */
- pscope = allocate_scope ();
- pscope->prev = cur_file_ptr->cur_scope;
- pscope->lsym = psym;
- pscope->type = type;
- cur_file_ptr->cur_scope = pscope;
-
- if (type != st_File)
- scope_delta = 1;
-
- /* For every block type except file, struct, union, or
- enumeration blocks, push a level on the tag stack. We omit
- file types, so that tags can span file boundaries. */
- if (type != st_File && storage != sc_Info)
- {
- ptag_head = allocate_thead ();
- ptag_head->first_tag = 0;
- ptag_head->prev = cur_tag_head;
- cur_tag_head = ptag_head;
- }
- break;
-
- case st_End:
- pscope = cur_file_ptr->cur_scope;
- if (pscope == (scope_t *) NULL)
- as_fatal ("too many st_End's");
- else
- {
- st_t begin_type = (st_t) pscope->lsym->ecoff_sym.st;
-
- psym->begin_ptr = pscope->lsym;
-
- if (begin_type != st_File)
- scope_delta = -1;
-
- /* Except for file, structure, union, or enumeration end
- blocks remove all tags created within this scope. */
- if (begin_type != st_File && storage != sc_Info)
- {
- ptag_head = cur_tag_head;
- cur_tag_head = ptag_head->prev;
-
- for (ptag = ptag_head->first_tag;
- ptag != (tag_t *) NULL;
- ptag = ptag_next)
- {
- if (ptag->forward_ref != (forward_t *) NULL)
- add_unknown_tag (ptag);
-
- ptag_next = ptag->same_block;
- ptag->hash_ptr->tag_ptr = ptag->same_name;
- free_tag (ptag);
- }
-
- free_thead (ptag_head);
- }
-
- cur_file_ptr->cur_scope = pscope->prev;
-
- /* block begin gets next sym #. This is set when we know
- the symbol index value. */
-
- /* Functions push two or more aux words as follows:
- 1st word: index+1 of the end symbol (filled in later).
- 2nd word: type of the function (plus any aux words needed).
- Also, tie the external pointer back to the function begin symbol. */
- if (begin_type != st_File && begin_type != st_Block)
- {
- symint_t ty;
- varray_t *svp = &cur_file_ptr->aux_syms;
-
- pscope->lsym->ecoff_sym.index = add_aux_sym_symint (0);
- pscope->lsym->index_ptr =
- &svp->last->datum->aux[svp->objects_last_page - 1];
- ty = add_aux_sym_tir (&last_func_type_info,
- hash_no,
- &cur_file_ptr->thash_head[0]);
-/*
- if (last_func_sym_value != (symbolS *) NULL)
- {
- last_func_sym_value->ifd = cur_file_ptr->file_index;
- last_func_sym_value->index = ty;
- }
- */
- }
-
- free_scope (pscope);
- }
- }
-
- cur_file_ptr->nested_scopes += scope_delta;
-
-#ifdef ECOFF_DEBUG
- if (debug && type != st_File
- && (debug > 2 || type == st_Block || type == st_End
- || type == st_Proc || type == st_StaticProc))
- {
- char *sc_str = sc_to_string (storage);
- char *st_str = st_to_string (type);
- int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
-
- fprintf (stderr,
- "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
- value, depth, sc_str);
-
- if (str_start && str_end_p1 - str_start > 0)
- fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
- else
- {
- unsigned long len = strlen (st_str);
- fprintf (stderr, " st= %.*s\n", len-1, st_str);
- }
- }
-#endif
-
- return psym;
-}
-\f
-/* Add an auxiliary symbol (passing a symint). This is actually used
- for integral aux types, not just symints. */
-
-static symint_t
-add_aux_sym_symint (aux_word)
- symint_t aux_word; /* auxiliary information word */
-{
- register varray_t *vp;
- register aux_t *aux_ptr;
-
- if (cur_file_ptr == (efdr_t *) NULL)
- as_fatal ("no current file pointer");
-
- vp = &cur_file_ptr->aux_syms;
-
- if (vp->objects_last_page == vp->objects_per_page)
- add_varray_page (vp);
-
- aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
- aux_ptr->type = aux_isym;
- aux_ptr->data.isym = aux_word;
-
- return vp->num_allocated++;
-}
-
-
-/* Add an auxiliary symbol (passing a file/symbol index combo). */
-
-static symint_t
-add_aux_sym_rndx (file_index, sym_index)
- int file_index;
- symint_t sym_index;
-{
- register varray_t *vp;
- register aux_t *aux_ptr;
-
- if (cur_file_ptr == (efdr_t *) NULL)
- as_fatal ("no current file pointer");
-
- vp = &cur_file_ptr->aux_syms;
-
- if (vp->objects_last_page == vp->objects_per_page)
- add_varray_page (vp);
-
- aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
- aux_ptr->type = aux_rndx;
- aux_ptr->data.rndx.rfd = file_index;
- aux_ptr->data.rndx.index = sym_index;
-
- return vp->num_allocated++;
-}
-\f
-/* Add an auxiliary symbol (passing the basic type and possibly
- type qualifiers). */
-
-static symint_t
-add_aux_sym_tir (t, state, hash_tbl)
- type_info_t *t; /* current type information */
- hash_state_t state; /* whether to hash type or not */
- thash_t **hash_tbl; /* pointer to hash table to use */
-{
- register varray_t *vp;
- register aux_t *aux_ptr;
- static AUXU init_aux;
- symint_t ret;
- int i;
- AUXU aux;
-
- if (cur_file_ptr == (efdr_t *) NULL)
- as_fatal ("no current file pointer");
-
- vp = &cur_file_ptr->aux_syms;
-
- aux = init_aux;
- aux.ti.bt = (int) t->basic_type;
- aux.ti.continued = 0;
- aux.ti.fBitfield = t->bitfield;
-
- aux.ti.tq0 = (int) t->type_qualifiers[0];
- aux.ti.tq1 = (int) t->type_qualifiers[1];
- aux.ti.tq2 = (int) t->type_qualifiers[2];
- aux.ti.tq3 = (int) t->type_qualifiers[3];
- aux.ti.tq4 = (int) t->type_qualifiers[4];
- aux.ti.tq5 = (int) t->type_qualifiers[5];
-
-
- /* For anything that adds additional information, we must not hash,
- so check here, and reset our state. */
-
- if (state != hash_no
- && (t->type_qualifiers[0] == tq_Array
- || t->type_qualifiers[1] == tq_Array
- || t->type_qualifiers[2] == tq_Array
- || t->type_qualifiers[3] == tq_Array
- || t->type_qualifiers[4] == tq_Array
- || t->type_qualifiers[5] == tq_Array
- || t->basic_type == bt_Struct
- || t->basic_type == bt_Union
- || t->basic_type == bt_Enum
- || t->bitfield
- || t->num_dims > 0))
- state = hash_no;
-
- /* See if we can hash this type, and save some space, but some types
- can't be hashed (because they contain arrays or continuations),
- and others can be put into the hash list, but cannot use existing
- types because other aux entries precede this one. */
-
- if (state != hash_no)
- {
- register thash_t *hash_ptr;
- register symint_t hi;
-
- hi = aux.isym & ((1 << HASHBITS) - 1);
- hi %= THASH_SIZE;
-
- for (hash_ptr = hash_tbl[hi];
- hash_ptr != (thash_t *)0;
- hash_ptr = hash_ptr->next)
- {
- if (aux.isym == hash_ptr->type.isym)
- break;
- }
-
- if (hash_ptr != (thash_t *) NULL && state == hash_yes)
- return hash_ptr->indx;
-
- if (hash_ptr == (thash_t *) NULL)
- {
- hash_ptr = allocate_thash ();
- hash_ptr->next = hash_tbl[hi];
- hash_ptr->type = aux;
- hash_ptr->indx = vp->num_allocated;
- hash_tbl[hi] = hash_ptr;
- }
- }
-
- /* Everything is set up, add the aux symbol. */
- if (vp->objects_last_page == vp->objects_per_page)
- add_varray_page (vp);
-
- aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
- aux_ptr->type = aux_tir;
- aux_ptr->data = aux;
-
- ret = vp->num_allocated++;
-
- /* Add bitfield length if it exists.
-
- NOTE: Mips documentation claims bitfield goes at the end of the
- AUX record, but the DECstation compiler emits it here.
- (This would only make a difference for enum bitfields.)
-
- Also note: We use the last size given since gcc may emit 2
- for an enum bitfield. */
-
- if (t->bitfield)
- (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
-
-
- /* Add tag information if needed. Structure, union, and enum
- references add 2 aux symbols: a [file index, symbol index]
- pointer to the structure type, and the current file index. */
-
- if (t->basic_type == bt_Struct
- || t->basic_type == bt_Union
- || t->basic_type == bt_Enum)
- {
- register symint_t file_index = t->tag_ptr->ifd;
- register localsym_t *sym = t->tag_ptr->sym;
- register forward_t *forward_ref = allocate_forward ();
-
- if (sym != (localsym_t *) NULL)
- {
- forward_ref->next = sym->forward_ref;
- sym->forward_ref = forward_ref;
- }
- else
- {
- forward_ref->next = t->tag_ptr->forward_ref;
- t->tag_ptr->forward_ref = forward_ref;
- }
-
- (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil);
- forward_ref->index_ptr
- = &vp->last->datum->aux[ vp->objects_last_page - 1];
-
- (void) add_aux_sym_symint (file_index);
- forward_ref->ifd_ptr
- = &vp->last->datum->aux[ vp->objects_last_page - 1];
- }
-
- /* Add information about array bounds if they exist. */
- for (i = 0; i < t->num_dims; i++)
- {
- (void) add_aux_sym_rndx (ST_RFDESCAPE,
- cur_file_ptr->int_type);
-
- (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
- (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
- (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
- (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
- ? 0
- : (t->sizes[i] * 8) / t->dimensions[i]);
- };
-
- /* NOTE: Mips documentation claims that the bitfield width goes here.
- But it needs to be emitted earlier. */
-
- return ret;
-}
-\f
-/* Add a tag to the tag table (unless it already exists). */
-
-static tag_t *
-get_tag (tag, sym, basic_type)
- const char *tag; /* tag name */
- localsym_t *sym; /* tag start block */
- bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
-{
- shash_t *hash_ptr;
- const char *err;
- tag_t *tag_ptr;
-
- if (cur_file_ptr == (efdr_t *) NULL)
- as_fatal ("no current file pointer");
-
- hash_ptr = (shash_t *) hash_find (tag_hash, tag);
-
- if (hash_ptr != (shash_t *) NULL
- && hash_ptr->tag_ptr != (tag_t *) NULL)
- {
- tag_ptr = hash_ptr->tag_ptr;
- if (sym != (localsym_t *) NULL)
- {
- tag_ptr->basic_type = basic_type;
- tag_ptr->ifd = cur_file_ptr->file_index;
- tag_ptr->sym = sym;
- }
- return tag_ptr;
- }
-
- if (hash_ptr == (shash_t *) NULL)
- {
- char *perm;
-
- perm = xmalloc ((unsigned long) (strlen (tag) + 1));
- strcpy (perm, tag);
- hash_ptr = allocate_shash ();
- err = hash_insert (tag_hash, perm, (char *) hash_ptr);
- if (err)
- as_fatal ("Inserting \"%s\" into tag hash table: %s",
- tag, err);
- hash_ptr->string = perm;
- }
-
- tag_ptr = allocate_tag ();
- tag_ptr->forward_ref = (forward_t *) NULL;
- tag_ptr->hash_ptr = hash_ptr;
- tag_ptr->same_name = hash_ptr->tag_ptr;
- tag_ptr->basic_type = basic_type;
- tag_ptr->sym = sym;
- tag_ptr->ifd = ((sym == (localsym_t *) NULL)
- ? (symint_t) -1
- : cur_file_ptr->file_index);
- tag_ptr->same_block = cur_tag_head->first_tag;
-
- cur_tag_head->first_tag = tag_ptr;
- hash_ptr->tag_ptr = tag_ptr;
-
- return tag_ptr;
-}
-\f
-/* Add an unknown {struct, union, enum} tag. */
-
-static void
-add_unknown_tag (ptag)
- tag_t *ptag; /* pointer to tag information */
-{
- shash_t *hash_ptr = ptag->hash_ptr;
- char *name = hash_ptr->string;
- localsym_t *sym;
- forward_t **pf;
-
-#ifdef ECOFF_DEBUG
- if (debug > 1)
- {
- char *agg_type = "{unknown aggregate type}";
- switch (ptag->basic_type)
- {
- case bt_Struct: agg_type = "struct"; break;
- case bt_Union: agg_type = "union"; break;
- case bt_Enum: agg_type = "enum"; break;
- default: break;
- }
-
- fprintf (stderr, "unknown %s %.*s found\n", agg_type,
- hash_ptr->len, name_start);
- }
-#endif
-
- sym = add_ecoff_symbol (name,
- st_Block,
- sc_Info,
- (symbolS *) NULL,
- (symint_t) 0,
- (symint_t) 0);
-
- (void) add_ecoff_symbol (name,
- st_End,
- sc_Info,
- (symbolS *) NULL,
- (symint_t) 0,
- (symint_t) 0);
-
- for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
- ;
- *pf = ptag->forward_ref;
-}
-\f
-/* Add a procedure to the current file's list of procedures, and record
- this is the current procedure. */
-
-static void
-add_procedure (func)
- char *func; /* func name */
-{
- register varray_t *vp;
- register proc_t *new_proc_ptr;
-
-#ifdef ECOFF_DEBUG
- if (debug)
- fputc ('\n', stderr);
-#endif
-
- if (cur_file_ptr == (efdr_t *) NULL)
- as_fatal ("no current file pointer");
-
- vp = &cur_file_ptr->procs;
-
- if (vp->objects_last_page == vp->objects_per_page)
- add_varray_page (vp);
-
- cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
-
- vp->num_allocated++;
-
- new_proc_ptr->pdr.isym = -1;
- new_proc_ptr->pdr.iline = -1;
- new_proc_ptr->pdr.lnLow = -1;
- new_proc_ptr->pdr.lnHigh = -1;
-
- /* Push the start of the function. */
- new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
- symbol_find_or_make (func),
- (symint_t) 0, (symint_t) 0);
-
- ++proc_cnt;
-
- /* Fill in the linenos preceding the .ent, if any. */
- if (noproc_lineno != (lineno_list_t *) NULL)
- {
- lineno_list_t *l;
-
- for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
- l->proc = new_proc_ptr;
- *last_lineno_ptr = noproc_lineno;
- while (*last_lineno_ptr != NULL)
- last_lineno_ptr = &(*last_lineno_ptr)->next;
- noproc_lineno = (lineno_list_t *) NULL;
- }
-}
-\f
-/* Add a new filename, and set up all of the file relative
- virtual arrays (strings, symbols, aux syms, etc.). Record
- where the current file structure lives. */
-
-static void
-add_file (file_name, indx)
- const char *file_name; /* file name */
- int indx;
-{
- register int first_ch;
- register efdr_t *fil_ptr;
-
-#ifdef ECOFF_DEBUG
- if (debug)
- fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
-#endif
-
- /* If the file name is NULL, then no .file symbol appeared, and we
- want to use the actual file name. Unfortunately, we don't have a
- clean way to access it. */
- if (file_name == (const char *) NULL)
- {
- extern char *logical_input_file;
- extern char *physical_input_file;
-
- if (first_file != (efdr_t *) NULL)
- as_fatal ("fake .file after real one");
- file_name = logical_input_file;
- if (file_name == (const char *) NULL)
- {
- file_name = physical_input_file;
- if (file_name == (const char *) NULL)
- file_name = "UNKNOWN";
- }
- }
-
-#ifndef NO_LISTING
- if (listing)
- listing_source_file (file_name);
-#endif
-
- /* If we're creating stabs, then we don't actually make a new FDR.
- Instead, we just create a stabs symbol. */
- if (stabs_seen)
- {
- (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
- symbol_new ("L0\001", now_seg,
- (valueT) frag_now_fix (),
- frag_now),
- 0, ECOFF_MARK_STAB (N_SOL));
- return;
- }
-
- first_ch = *file_name;
-
- /* See if the file has already been created. */
- for (fil_ptr = first_file;
- fil_ptr != (efdr_t *) NULL;
- fil_ptr = fil_ptr->next_file)
- {
- if (first_ch == fil_ptr->name[0]
- && strcmp (file_name, fil_ptr->name) == 0)
- {
- cur_file_ptr = fil_ptr;
- break;
- }
- }
-
- /* If this is a new file, create it. */
- if (fil_ptr == (efdr_t *) NULL)
- {
- if (file_desc.objects_last_page == file_desc.objects_per_page)
- add_varray_page (&file_desc);
-
- fil_ptr = cur_file_ptr =
- &file_desc.last->datum->file[file_desc.objects_last_page++];
- *fil_ptr = init_file;
-
- fil_ptr->file_index = indx;
- ++file_desc.num_allocated;
-
- /* Allocate the string hash table. */
- fil_ptr->str_hash = hash_new ();
-
- /* Make sure 0 byte in string table is null */
- add_string (&fil_ptr->strings,
- fil_ptr->str_hash,
- "",
- (shash_t **)0);
-
- if (strlen (file_name) > PAGE_USIZE - 2)
- as_fatal ("Filename goes over one page boundary.");
-
- /* Push the start of the filename. We assume that the filename
- will be stored at string offset 1. */
- (void) add_ecoff_symbol (file_name, st_File, sc_Text,
- (symbolS *) NULL,
- (symint_t) 0, (symint_t) 0);
- fil_ptr->fdr.rss = 1;
- fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
-
- /* Update the linked list of file descriptors. */
- *last_file_ptr = fil_ptr;
- last_file_ptr = &fil_ptr->next_file;
-
- /* Add void & int types to the file (void should be first to catch
- errant 0's within the index fields). */
- fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
- hash_yes,
- &cur_file_ptr->thash_head[0]);
-
- fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
- hash_yes,
- &cur_file_ptr->thash_head[0]);
- }
-}
-\f
-#ifdef ECOFF_DEBUG
-
-/* Convert storage class to string. */
-
-static char *
-sc_to_string(storage_class)
- sc_t storage_class;
-{
- switch(storage_class)
- {
- case sc_Nil: return "Nil,";
- case sc_Text: return "Text,";
- case sc_Data: return "Data,";
- case sc_Bss: return "Bss,";
- case sc_Register: return "Register,";
- case sc_Abs: return "Abs,";
- case sc_Undefined: return "Undefined,";
- case sc_CdbLocal: return "CdbLocal,";
- case sc_Bits: return "Bits,";
- case sc_CdbSystem: return "CdbSystem,";
- case sc_RegImage: return "RegImage,";
- case sc_Info: return "Info,";
- case sc_UserStruct: return "UserStruct,";
- case sc_SData: return "SData,";
- case sc_SBss: return "SBss,";
- case sc_RData: return "RData,";
- case sc_Var: return "Var,";
- case sc_Common: return "Common,";
- case sc_SCommon: return "SCommon,";
- case sc_VarRegister: return "VarRegister,";
- case sc_Variant: return "Variant,";
- case sc_SUndefined: return "SUndefined,";
- case sc_Init: return "Init,";
- case sc_Max: return "Max,";
- }
-
- return "???,";
-}
-
-#endif /* DEBUG */
-\f
-#ifdef ECOFF_DEBUG
-
-/* Convert symbol type to string. */
-
-static char *
-st_to_string(symbol_type)
- st_t symbol_type;
-{
- switch(symbol_type)
- {
- case st_Nil: return "Nil,";
- case st_Global: return "Global,";
- case st_Static: return "Static,";
- case st_Param: return "Param,";
- case st_Local: return "Local,";
- case st_Label: return "Label,";
- case st_Proc: return "Proc,";
- case st_Block: return "Block,";
- case st_End: return "End,";
- case st_Member: return "Member,";
- case st_Typedef: return "Typedef,";
- case st_File: return "File,";
- case st_RegReloc: return "RegReloc,";
- case st_Forward: return "Forward,";
- case st_StaticProc: return "StaticProc,";
- case st_Constant: return "Constant,";
- case st_Str: return "String,";
- case st_Number: return "Number,";
- case st_Expr: return "Expr,";
- case st_Type: return "Type,";
- case st_Max: return "Max,";
- }
-
- return "???,";
-}
-
-#endif /* DEBUG */
-\f
-/* Parse .begin directives which have a label as the first argument
- which gives the location of the start of the block. */
-
-static void
-obj_ecoff_begin (ignore)
- int ignore;
-{
- char *name;
- char name_end;
-
- if (cur_file_ptr == (efdr_t *) NULL)
- {
- as_warn (".begin directive without a preceding .file directive");
- demand_empty_rest_of_line ();
- return;
- }
-
- if (cur_proc_ptr == (proc_t *) NULL)
- {
- as_warn (".begin directive without a preceding .ent directive");
- demand_empty_rest_of_line ();
- return;
- }
-
- name = input_line_pointer;
- name_end = get_symbol_end ();
-
- (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
- symbol_find_or_make (name),
- (symint_t) 0, (symint_t) 0);
-
- *input_line_pointer = name_end;
-
- /* The line number follows, but we don't use it. */
- (void) get_absolute_expression ();
- demand_empty_rest_of_line ();
-}
-\f
-/* Parse .bend directives which have a label as the first argument
- which gives the location of the end of the block. */
-
-static void
-obj_ecoff_bend (ignore)
- int ignore;
-{
- char *name;
- char name_end;
- symbolS *endsym;
-
- if (cur_file_ptr == (efdr_t *) NULL)
- {
- as_warn (".bend directive without a preceding .file directive");
- demand_empty_rest_of_line ();
- return;
- }
-
- if (cur_proc_ptr == (proc_t *) NULL)
- {
- as_warn (".bend directive without a preceding .ent directive");
- demand_empty_rest_of_line ();
- return;
- }
-
- name = input_line_pointer;
- name_end = get_symbol_end ();
-
- /* The value is the distance between the .bend directive and the
- corresponding symbol. We fill in the offset when we write out
- the symbol. */
- endsym = symbol_find (name);
- if (endsym == (symbolS *) NULL)
- as_warn (".bend directive names unknown symbol");
- else
- (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
- (symint_t) 0, (symint_t) 0);
-
- *input_line_pointer = name_end;
-
- /* The line number follows, but we don't use it. */
- (void) get_absolute_expression ();
- demand_empty_rest_of_line ();
-}
-\f
-/* COFF debugging information is provided as a series of directives
- (.def, .scl, etc.). We build up information as we read the
- directives in the following static variables, and file it away when
- we reach the .endef directive. */
-static char *coff_sym_name;
-static type_info_t coff_type;
-static sc_t coff_storage_class;
-static st_t coff_symbol_typ;
-static int coff_is_function;
-static char *coff_tag;
-static valueT coff_value;
-symbolS *coff_sym_value;
-static int coff_inside_enumeration;
-
-/* Handle a .def directive: start defining a symbol. */
-
-static void
-obj_ecoff_def (ignore)
- int ignore;
-{
- char *name;
- char name_end;
-
- SKIP_WHITESPACES ();
-
- name = input_line_pointer;
- name_end = get_symbol_end ();
-
- if (coff_sym_name != (char *) NULL)
- as_warn (".def pseudo-op used inside of .def/.endef; ignored");
- else if (*name == '\0')
- as_warn ("Empty symbol name in .def; ignored");
- else
- {
- if (coff_sym_name != (char *) NULL)
- free (coff_sym_name);
- if (coff_tag != (char *) NULL)
- free (coff_tag);
- coff_sym_name = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
- strcpy (coff_sym_name, name);
- coff_type = type_info_init;
- coff_storage_class = sc_Nil;
- coff_symbol_typ = st_Nil;
- coff_is_function = 0;
- coff_tag = (char *) NULL;
- coff_value = 0;
- coff_sym_value = (symbolS *) NULL;
- }
-
- *input_line_pointer = name_end;
-
- demand_empty_rest_of_line ();
-}
-
-/* Handle a .dim directive, used to give dimensions for an array. The
- arguments are comma separated numbers. mips-tfile assumes that
- there will not be more than 6 dimensions, and gdb won't read any
- more than that anyhow, so I will also make that assumption. */
-
-static void
-obj_ecoff_dim (ignore)
- int ignore;
-{
- int dimens[N_TQ];
- int i;
-
- if (coff_sym_name == (char *) NULL)
- {
- as_warn (".dim pseudo-op used outside of .def/.endef; ignored");
- demand_empty_rest_of_line ();
- return;
- }
-
- for (i = 0; i < N_TQ; i++)
- {
- SKIP_WHITESPACES ();
- dimens[i] = get_absolute_expression ();
- if (*input_line_pointer == ',')
- ++input_line_pointer;
- else
- {
- if (*input_line_pointer != '\n'
- && *input_line_pointer != ';')
- as_warn ("Badly formed .dim directive");
- break;
- }
- }
-
- if (i == N_TQ)
- --i;
-
- /* The dimensions are stored away in reverse order. */
- for (; i >= 0; i--)
- {
- if (coff_type.num_dims >= N_TQ)
- {
- as_warn ("Too many .dim entries");
- break;
- }
- coff_type.dimensions[coff_type.num_dims] = dimens[i];
- ++coff_type.num_dims;
- }
-
- demand_empty_rest_of_line ();
-}
-
-/* Handle a .scl directive, which sets the COFF storage class of the
- symbol. */
-
-static void
-obj_ecoff_scl (ignore)
- int ignore;
-{
- long val;
-
- if (coff_sym_name == (char *) NULL)
- {
- as_warn (".scl pseudo-op used outside of .def/.endef; ignored");
- demand_empty_rest_of_line ();
- return;
- }
-
- val = get_absolute_expression ();
-
- coff_symbol_typ = map_coff_sym_type[val];
- coff_storage_class = map_coff_storage[val];
-
- demand_empty_rest_of_line ();
-}
-
-/* Handle a .size directive. For some reason mips-tfile.c thinks that
- .size can have multiple arguments. We humor it, although gcc will
- never generate more than one argument. */
-
-static void
-obj_ecoff_size (ignore)
- int ignore;
-{
- int sizes[N_TQ];
- int i;
-
- if (coff_sym_name == (char *) NULL)
- {
- as_warn (".size pseudo-op used outside of .def/.endef; ignored");
- demand_empty_rest_of_line ();
- return;
- }
-
- for (i = 0; i < N_TQ; i++)
- {
- SKIP_WHITESPACES ();
- sizes[i] = get_absolute_expression ();
- if (*input_line_pointer == ',')
- ++input_line_pointer;
- else
- {
- if (*input_line_pointer != '\n'
- && *input_line_pointer != ';')
- as_warn ("Badly formed .size directive");
- break;
- }
- }
-
- if (i == N_TQ)
- --i;
-
- /* The sizes are stored away in reverse order. */
- for (; i >= 0; i--)
- {
- if (coff_type.num_sizes >= N_TQ)
- {
- as_warn ("Too many .size entries");
- break;
- }
- coff_type.sizes[coff_type.num_sizes] = sizes[i];
- ++coff_type.num_sizes;
- }
-
- demand_empty_rest_of_line ();
-}
-
-/* Handle the .type directive, which gives the COFF type of the
- symbol. */
-
-static void
-obj_ecoff_type (ignore)
- int ignore;
-{
- long val;
- tq_t *tq_ptr;
- tq_t *tq_shft;
-
- if (coff_sym_name == (char *) NULL)
- {
- as_warn (".type pseudo-op used outside of .def/.endef; ignored");
- demand_empty_rest_of_line ();
- return;
- }
-
- val = get_absolute_expression ();
-
- coff_type.orig_type = BTYPE (val);
- coff_type.basic_type = map_coff_types[coff_type.orig_type];
-
- tq_ptr = &coff_type.type_qualifiers[N_TQ];
- while (val &~ N_BTMASK)
- {
- if (tq_ptr == &coff_type.type_qualifiers[0])
- {
- as_warn ("Too derived values in .type argument");
- break;
- }
- if (ISPTR (val))
- *--tq_ptr = tq_Ptr;
- else if (ISFCN (val))
- *--tq_ptr = tq_Proc;
- else if (ISARY (val))
- *--tq_ptr = tq_Array;
- else
- as_fatal ("Unrecognized .type argument");
-
- val = DECREF (val);
- }
-
- tq_shft = &coff_type.type_qualifiers[0];
- while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
- *tq_shft++ = *tq_ptr++;
-
- if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
- {
- /* If this is a function, ignore it, so that we don't get two
- entries (one from the .ent, and one for the .def that
- precedes it). Save the type information so that the end
- block can properly add it after the begin block index. For
- MIPS knows what reason, we must strip off the function type
- at this point. */
- coff_is_function = 1;
- tq_shft[-1] = tq_Nil;
- }
-
- while (tq_shft != &coff_type.type_qualifiers[N_TQ])
- *tq_shft++ = tq_Nil;
-
- demand_empty_rest_of_line ();
-}
-
-/* Handle the .tag directive, which gives the name of a structure,
- union or enum. */
-
-static void
-obj_ecoff_tag (ignore)
- int ignore;
-{
- char *name;
- char name_end;
-
- if (coff_sym_name == (char *) NULL)
- {
- as_warn (".tag pseudo-op used outside of .def/.endef; ignored");
- demand_empty_rest_of_line ();
- return;
- }
-
- name = input_line_pointer;
- name_end = get_symbol_end ();
-
- coff_tag = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
- strcpy (coff_tag, name);
-
- *input_line_pointer = name_end;
-
- demand_empty_rest_of_line ();
-}
-
-/* Handle the .val directive, which gives the value of the symbol. It
- may be the name of a static or global symbol. */
-
-static void
-obj_ecoff_val (ignore)
- int ignore;
-{
- if (coff_sym_name == (char *) NULL)
- {
- as_warn (".val pseudo-op used outside of .def/.endef; ignored");
- demand_empty_rest_of_line ();
- return;
- }
-
- if (! is_name_beginner ((unsigned char) *input_line_pointer))
- coff_value = get_absolute_expression ();
- else
- {
- char *name;
- char name_end;
-
- name = input_line_pointer;
- name_end = get_symbol_end ();
-
- if (strcmp (name, ".") == 0)
- as_warn ("`.val .' not supported");
- else
- coff_sym_value = symbol_find_or_make (name);
-
- *input_line_pointer = name_end;
-
- /* FIXME: gcc can generate address expressions here in unusual
- cases (search for "obscure" in sdbout.c), although this is
- very unlikely for a MIPS chip. */
- }
-
- demand_empty_rest_of_line ();
-}
-
-/* Handle the .endef directive, which terminates processing of COFF
- debugging information for a symbol. */
-
-static void
-obj_ecoff_endef (ignore)
- int ignore;
-{
- char *name;
- symint_t indx;
- localsym_t *sym;
-
- demand_empty_rest_of_line ();
-
- if (coff_sym_name == (char *) NULL)
- {
- as_warn (".endef pseudo-op used before .def; ignored");
- return;
- }
-
- name = coff_sym_name;
- coff_sym_name = (char *) NULL;
-
- /* If the symbol is a static or external, we have already gotten the
- appropriate type and class, so make sure we don't override those
- values. This is needed because there are some type and classes
- that are not in COFF, such as short data, etc. */
- if (coff_sym_value != (symbolS *) NULL)
- {
- coff_symbol_typ = st_Nil;
- coff_storage_class = sc_Nil;
- }
-
- coff_type.extra_sizes = coff_tag != (char *) NULL;
- if (coff_type.num_dims > 0)
- {
- int diff = coff_type.num_dims - coff_type.num_sizes;
- int i = coff_type.num_dims - 1;
- int j;
-
- if (coff_type.num_sizes != 1 || diff < 0)
- {
- as_warn ("Bad COFF debugging info");
- return;
- }
-
- /* If this is an array, make sure the same number of dimensions
- and sizes were passed, creating extra sizes for multiply
- dimensioned arrays if not passed. */
- coff_type.extra_sizes = 0;
- if (diff)
- {
- j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
- while (j >= 0)
- {
- coff_type.sizes[j] = (((j - diff) >= 0)
- ? coff_type.sizes[j - diff]
- : 0);
- j--;
- }
-
- coff_type.num_sizes = i + 1;
- for (i--; i >= 0; i--)
- coff_type.sizes[i] = (coff_type.sizes[i + 1]
- / coff_type.dimensions[i + 1]);
- }
- }
- else if (coff_symbol_typ == st_Member
- && coff_type.num_sizes - coff_type.extra_sizes == 1)
- {
- /* Is this a bitfield? This is indicated by a structure memeber
- having a size field that isn't an array. */
- coff_type.bitfield = 1;
- }
-
- /* Except for enumeration members & begin/ending of scopes, put the
- type word in the aux. symbol table. */
- if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End)
- indx = 0;
- else if (coff_inside_enumeration)
- indx = cur_file_ptr->void_type;
- else
- {
- if (coff_type.basic_type == bt_Struct
- || coff_type.basic_type == bt_Union
- || coff_type.basic_type == bt_Enum)
- {
- if (coff_tag == (char *) NULL)
- {
- as_warn ("No tag specified for %s", name);
- return;
- }
-
- coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
- coff_type.basic_type);
- }
-
- if (coff_is_function)
- {
- last_func_type_info = coff_type;
- last_func_sym_value = coff_sym_value;
- return;
- }
-
- indx = add_aux_sym_tir (&coff_type,
- hash_yes,
- &cur_file_ptr->thash_head[0]);
- }
-
- /* Do any last minute adjustments that are necessary. */
- switch (coff_symbol_typ)
- {
- default:
- break;
-
- /* For the beginning of structs, unions, and enumerations, the
- size info needs to be passed in the value field. */
- case st_Block:
- if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
- != 1)
- {
- as_warn ("Bad COFF debugging information");
- return;
- }
- else
- coff_value = coff_type.sizes[0];
-
- coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
- break;
-
- /* For the end of structs, unions, and enumerations, omit the
- name which is always ".eos". This needs to be done last, so
- that any error reporting above gives the correct name. */
- case st_End:
- free (name);
- name = (char *) NULL;
- coff_value = 0;
- coff_inside_enumeration = 0;
- break;
-
- /* Members of structures and unions that aren't bitfields, need
- to adjust the value from a byte offset to a bit offset.
- Members of enumerations do not have the value adjusted, and
- can be distinguished by indx == indexNil. For enumerations,
- update the maximum enumeration value. */
- case st_Member:
- if (! coff_type.bitfield && ! coff_inside_enumeration)
- coff_value *= 8;
-
- break;
- }
-
- /* Add the symbol. */
- sym = add_ecoff_symbol (name,
- coff_symbol_typ,
- coff_storage_class,
- coff_sym_value,
- (symint_t) coff_value,
- indx);
-
- /* deal with struct, union, and enum tags. */
- if (coff_symbol_typ == st_Block)
- {
- /* Create or update the tag information. */
- tag_t *tag_ptr = get_tag (name,
- sym,
- coff_type.basic_type);
- forward_t **pf;
-
- /* Remember any forward references. */
- for (pf = &sym->forward_ref;
- *pf != (forward_t *) NULL;
- pf = &(*pf)->next)
- ;
- *pf = tag_ptr->forward_ref;
- tag_ptr->forward_ref = (forward_t *) NULL;
- }
-}
-\f
-/* Parse .end directives. */
-
-static void
-obj_ecoff_end (ignore)
- int ignore;
-{
- char *name;
- char name_end;
- register int ch;
- symbolS *ent;
-
- if (cur_file_ptr == (efdr_t *) NULL)
- {
- as_warn (".end directive without a preceding .file directive");
- demand_empty_rest_of_line ();
- return;
- }
-
- if (cur_proc_ptr == (proc_t *) NULL)
- {
- as_warn (".end directive without a preceding .ent directive");
- demand_empty_rest_of_line ();
- return;
- }
-
- name = input_line_pointer;
- name_end = get_symbol_end ();
-
- ch = *name;
- if (! is_name_beginner (ch))
- {
- as_warn (".end directive has no name");
- *input_line_pointer = name_end;
- demand_empty_rest_of_line ();
- return;
- }
-
- /* The value is the distance between the .end directive and the
- corresponding symbol. We create a fake symbol to hold the
- current location, and put in the offset when we write out the
- symbol. */
- ent = symbol_find (name);
- if (ent == (symbolS *) NULL)
- as_warn (".end directive names unknown symbol");
- else
- (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
- symbol_new ("L0\001", now_seg,
- (valueT) frag_now_fix (),
- frag_now),
- (symint_t) 0, (symint_t) 0);
-
- cur_proc_ptr = (proc_t *) NULL;
-
- *input_line_pointer = name_end;
- demand_empty_rest_of_line ();
-}
-\f
-/* Parse .ent directives. */
-
-static void
-obj_ecoff_ent (ignore)
- int ignore;
-{
- char *name;
- char name_end;
- register int ch;
-
- if (cur_file_ptr == (efdr_t *) NULL)
- add_file ((const char *) NULL, 0);
-
- if (cur_proc_ptr != (proc_t *) NULL)
- {
- as_warn ("second .ent directive found before .end directive");
- demand_empty_rest_of_line ();
- return;
- }
-
- name = input_line_pointer;
- name_end = get_symbol_end ();
-
- ch = *name;
- if (! is_name_beginner (ch))
- {
- as_warn (".ent directive has no name");
- *input_line_pointer = name_end;
- demand_empty_rest_of_line ();
- return;
- }
-
- add_procedure (name);
-
- *input_line_pointer = name_end;
- demand_empty_rest_of_line ();
-}
-\f
-/* Parse .file directives. */
-
-static void
-obj_ecoff_file (ignore)
- int ignore;
-{
- int indx;
- char *name;
- int len;
-
- if (cur_proc_ptr != (proc_t *) NULL)
- {
- as_warn ("No way to handle .file within .ent/.end section");
- demand_empty_rest_of_line ();
- return;
- }
-
- indx = (int) get_absolute_expression ();
-
- /* FIXME: we don't have to save the name here. */
- name = demand_copy_C_string (&len);
-
- add_file (name, indx - 1);
-
- demand_empty_rest_of_line ();
-}
-\f
-/* Parse .fmask directives. */
-
-static void
-obj_ecoff_fmask (ignore)
- int ignore;
-{
- long val;
-
- if (cur_proc_ptr == (proc_t *) NULL)
- {
- as_warn (".fmask outside of .ent");
- demand_empty_rest_of_line ();
- return;
- }
-
- if (get_absolute_expression_and_terminator (&val) != ',')
- {
- as_warn ("Bad .fmask directive");
- --input_line_pointer;
- demand_empty_rest_of_line ();
- return;
- }
-
- cur_proc_ptr->pdr.fregmask = val;
- cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
-
- demand_empty_rest_of_line ();
-}
-\f
-/* Parse .frame directives. */
-
-static void
-obj_ecoff_frame (ignore)
- int ignore;
-{
- long val;
-
- if (cur_proc_ptr == (proc_t *) NULL)
- {
- as_warn (".frame outside of .ent");
- demand_empty_rest_of_line ();
- return;
- }
-
- cur_proc_ptr->pdr.framereg = tc_get_register ();
-
- SKIP_WHITESPACE ();
- if (*input_line_pointer++ != ','
- || get_absolute_expression_and_terminator (&val) != ',')
- {
- as_warn ("Bad .frame directive");
- --input_line_pointer;
- demand_empty_rest_of_line ();
- return;
- }
-
- cur_proc_ptr->pdr.frameoffset = val;
-
- cur_proc_ptr->pdr.pcreg = tc_get_register ();
-
- demand_empty_rest_of_line ();
-}
-\f
-/* Parse .mask directives. */
-
-static void
-obj_ecoff_mask (ignore)
- int ignore;
-{
- long val;
-
- if (cur_proc_ptr == (proc_t *) NULL)
- {
- as_warn (".mask outside of .ent");
- demand_empty_rest_of_line ();
- return;
- }
-
- if (get_absolute_expression_and_terminator (&val) != ',')
- {
- as_warn ("Bad .mask directive");
- --input_line_pointer;
- demand_empty_rest_of_line ();
- return;
- }
-
- cur_proc_ptr->pdr.regmask = val;
- cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
-
- demand_empty_rest_of_line ();
-}
-\f
-/* Parse .loc directives. */
-
-static void
-obj_ecoff_loc (ignore)
- int ignore;
-{
- lineno_list_t *list;
- symint_t lineno;
-
- if (cur_file_ptr == (efdr_t *) NULL)
- {
- as_warn (".loc before .file");
- demand_empty_rest_of_line ();
- return;
- }
-
- if (now_seg != text_section)
- {
- as_warn (".loc outside of .text");
- demand_empty_rest_of_line ();
- return;
- }
-
- /* Skip the file number. */
- SKIP_WHITESPACE ();
- get_absolute_expression ();
- SKIP_WHITESPACE ();
-
- lineno = get_absolute_expression ();
-
-#ifndef NO_LISTING
- if (listing)
- listing_source_line (lineno);
-#endif
-
- /* If we're building stabs, then output a special label rather than
- ECOFF line number info. */
- if (stabs_seen)
- {
- (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
- symbol_new ("L0\001", now_seg,
- (valueT) frag_now_fix (),
- frag_now),
- 0, lineno);
- return;
- }
-
- list = allocate_lineno_list ();
-
- list->next = (lineno_list_t *) NULL;
- list->file = cur_file_ptr;
- list->proc = cur_proc_ptr;
- list->frag = frag_now;
- list->paddr = frag_now_fix ();
- list->lineno = lineno;
-
- /* A .loc directive will sometimes appear before a .ent directive,
- which means that cur_proc_ptr will be NULL here. Arrange to
- patch this up. */
- if (cur_proc_ptr == (proc_t *) NULL)
- {
- lineno_list_t **pl;
-
- pl = &noproc_lineno;
- while (*pl != (lineno_list_t *) NULL)
- pl = &(*pl)->next;
- *pl = list;
- }
- else
- {
- *last_lineno_ptr = list;
- last_lineno_ptr = &list->next;
- }
-}
-\f
-/* Make sure the @stabs symbol is emitted. */
-
-static void
-mark_stabs (ignore)
- int ignore;
-{
- if (! stabs_seen)
- {
- /* Add a dummy @stabs dymbol. */
- stabs_seen = 1;
- (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
- (symbolS *) NULL,
- (symint_t) -1, ECOFF_MARK_STAB (0));
- }
-}
-\f
-/* Handle .stabs directives. The actual parsing routine is done by a
- generic routine. This routine is called via OBJ_PROCESS_STAB.
- When this is called, input_line_pointer will be pointing at the
- value field of the stab.
-
- .stabs directives have five fields:
- "string" a string, encoding the type information.
- code a numeric code, defined in <stab.h>
- 0 a zero
- desc a zero or line number
- value a numeric value or an address.
-
- If the value is relocatable, we transform this into:
- iss points as an index into string space
- value value from lookup of the name
- st st from lookup of the name
- sc sc from lookup of the name
- index code|CODE_MASK
-
- If the value is not relocatable, we transform this into:
- iss points as an index into string space
- value value
- st st_Nil
- sc sc_Nil
- index code|CODE_MASK
-
- .stabn directives have four fields (string is null):
- code a numeric code, defined in <stab.h>
- 0 a zero
- desc a zero or a line number
- value a numeric value or an address. */
-
-void
-ecoff_stab (what, string, type, other, desc)
- int what;
- const char *string;
- int type;
- int other;
- int desc;
-{
- efdr_t *save_file_ptr = cur_file_ptr;
- symbolS *sym;
- symint_t value;
- st_t st;
- sc_t sc;
- symint_t indx;
-
- /* We don't handle .stabd. */
- if (what != 's' && what != 'n')
- {
- as_bad (".stab%c is not supported", what);
- return;
- }
-
- /* A .stabn uses a null name, not an empty string. */
- if (what == 'n')
- string = NULL;
-
- /* We ignore the other field. */
- if (other != 0)
- as_warn (".stab%c: ignoring non-zero other field", what);
-
- /* Make sure we have a current file. */
- if (cur_file_ptr == (efdr_t *) NULL)
- {
- add_file ((const char *) NULL, 0);
- save_file_ptr = cur_file_ptr;
- }
-
- /* For stabs in ECOFF, the first symbol must be @stabs. This is a
- signal to gdb. */
- if (stabs_seen == 0)
- mark_stabs (0);
-
- /* Line number stabs are handled differently, since they have two
- values, the line number and the address of the label. We use the
- index field (aka desc) to hold the line number, and the value
- field to hold the address. The symbol type is st_Label, which
- should be different from the other stabs, so that gdb can
- recognize it. */
- if (type == N_SLINE)
- {
- SYMR dummy_symr;
- char *name;
- char name_end;
-
-#ifndef NO_LISTING
- if (listing)
- listing_source_line ((unsigned int) desc);
-#endif
-
- dummy_symr.index = desc;
- if (dummy_symr.index != desc)
- {
- as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
- desc, what);
- return;
- }
-
- name = input_line_pointer;
- name_end = get_symbol_end ();
-
- sym = symbol_find_or_make (name);
- *input_line_pointer = name_end;
-
- value = 0;
- st = st_Label;
- sc = sc_Text;
- indx = desc;
- }
- else
- {
-#ifndef NO_LISTING
- if (listing && (type == N_SO || type == N_SOL))
- listing_source_file (string);
-#endif
-
- if (isdigit (*input_line_pointer)
- || *input_line_pointer == '-'
- || *input_line_pointer == '+')
- {
- st = st_Nil;
- sc = sc_Nil;
- sym = (symbolS *) NULL;
- value = get_absolute_expression ();
- }
- else if (! is_name_beginner ((unsigned char) *input_line_pointer))
- {
- as_warn ("Illegal .stab%c directive, bad character", what);
- return;
- }
- else
- {
- char *name;
- char name_end;
-
- name = input_line_pointer;
- name_end = get_symbol_end ();
-
- sym = symbol_find_or_make (name);
-
- sc = sc_Nil;
- st = st_Nil;
- value = 0;
-
- *input_line_pointer = name_end;
- if (name_end == '+' || name_end == '-')
- {
- ++input_line_pointer;
- value = get_absolute_expression ();
- if (name_end == '-')
- value = - value;
- }
- }
-
- indx = ECOFF_MARK_STAB (type);
- }
-
- (void) add_ecoff_symbol (string, st, sc, sym, value, indx);
-
- /* Restore normal file type. */
- cur_file_ptr = save_file_ptr;
-}
-\f
-/* Add bytes to the symbolic information buffer. */
-
-static char *
-ecoff_add_bytes (buf, bufend, bufptr, need)
- char **buf;
- char **bufend;
- char *bufptr;
- unsigned long need;
-{
- unsigned long at;
- unsigned long want;
-
- at = bufptr - *buf;
- need -= *bufend - bufptr;
- if (need < PAGE_SIZE)
- need = PAGE_SIZE;
- want = (*bufend - *buf) + need;
- *buf = xrealloc (*buf, want);
- *bufend = *buf + want;
- return *buf + at;
-}
-
-/* Adjust the symbolic information buffer to the alignment required
- for the ECOFF target debugging information. */
-
-static unsigned long
-ecoff_padding_adjust (buf, bufend, offset, bufptrptr)
- char **buf;
- char **bufend;
- unsigned long offset;
- char **bufptrptr;
-{
- bfd_size_type align;
-
- align = ecoff_backend (stdoutput)->debug_align;
- if ((offset & (align - 1)) != 0)
- {
- unsigned long add;
-
- add = align - (offset & (align - 1));
- if (*bufend - (*buf + offset) < add)
- (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
- memset (*buf + offset, 0, add);
- offset += add;
- if (bufptrptr != (char **) NULL)
- *bufptrptr = *buf + offset;
- }
-
- return offset;
-}
-
-/* Build the line number information. */
-
-static unsigned long
-ecoff_build_lineno (buf, bufend, offset, linecntptr)
- char **buf;
- char **bufend;
- unsigned long offset;
- long *linecntptr;
-{
- char *bufptr;
- register lineno_list_t *l;
- lineno_list_t *last;
- efdr_t *file;
- proc_t *proc;
- unsigned long c;
- long iline;
- long totcount;
-
- if (linecntptr != (long *) NULL)
- *linecntptr = 0;
-
- bufptr = *buf + offset;
-
- file = (efdr_t *) NULL;
- proc = (proc_t *) NULL;
- last = (lineno_list_t *) NULL;
- c = offset;
- iline = 0;
- totcount = 0;
- for (l = first_lineno; l != (lineno_list_t *) NULL; l = l->next)
- {
- long count;
- long delta;
-
- /* Get the offset to the memory address of the next line number
- (in words). Do this first, so that we can skip ahead to the
- next useful line number entry. */
- if (l->next == (lineno_list_t *) NULL)
- count = 0;
- else
- {
- count = ((l->next->frag->fr_address + l->next->paddr
- - (l->frag->fr_address + l->paddr))
- >> 2);
- if (count <= 0)
- {
- /* Don't change last, so we still get the right delta. */
- continue;
- }
- }
-
- if (l->file != file || l->proc != proc)
- {
- if (l->proc != proc && proc != (proc_t *) NULL)
- proc->pdr.lnHigh = last->lineno;
- if (l->file != file && file != (efdr_t *) NULL)
- {
- file->fdr.cbLine = c - file->fdr.cbLineOffset;
- /* The cline field is ill-documented. This is a guess
- at the right value. */
- file->fdr.cline = totcount + count;
- if (linecntptr != (long *) NULL)
- *linecntptr += totcount + count;
- totcount = 0;
- }
-
- if (l->file != file)
- {
- file = l->file;
- file->fdr.ilineBase = iline;
- file->fdr.cbLineOffset = c;
- }
- if (l->proc != proc)
- {
- proc = l->proc;
- if (proc != (proc_t *) NULL)
- {
- proc->pdr.lnLow = l->lineno;
- proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
- /* The iline field is ill-documented. This is a
- guess at the right value. */
- proc->pdr.iline = totcount;
- }
- }
-
- last = (lineno_list_t *) NULL;
- }
-
- totcount += count;
-
- /* Get the offset to this line number. */
- if (last == (lineno_list_t *) NULL)
- delta = 0;
- else
- delta = l->lineno - last->lineno;
-
- /* Put in the offset to this line number. */
- while (delta != 0)
- {
- int setcount;
-
- /* 1 is added to each count read. */
- --count;
- /* We can only adjust the word count by up to 15 words at a
- time. */
- if (count <= 0x0f)
- {
- setcount = count;
- count = 0;
- }
- else
- {
- setcount = 0x0f;
- count -= 0x0f;
- }
- if (delta >= -7 && delta <= 7)
- {
- if (bufptr >= *bufend)
- bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
- *bufptr++ = setcount + (delta << 4);
- delta = 0;
- ++c;
- }
- else
- {
- int set;
-
- if (*bufend - bufptr < 3)
- bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
- *bufptr++ = setcount + (8 << 4);
- if (delta < -0x8000)
- {
- set = -0x8000;
- delta += 0x8000;
- }
- else if (delta > 0x7fff)
- {
- set = 0x7fff;
- delta -= 0x7fff;
- }
- else
- {
- set = delta;
- delta = 0;
- }
- *bufptr++ = set >> 8;
- *bufptr++ = set & 0xffff;
- c += 3;
- }
- }
-
- /* Finish adjusting the count. */
- while (count > 0)
- {
- if (bufptr >= *bufend)
- bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
- /* 1 is added to each count read. */
- --count;
- if (count > 0x0f)
- {
- *bufptr++ = 0x0f;
- count -= 0x0f;
- }
- else
- {
- *bufptr++ = count;
- count = 0;
- }
- ++c;
- }
-
- ++iline;
- last = l;
- }
-
- if (proc != (proc_t *) NULL)
- proc->pdr.lnHigh = last->lineno;
- if (file != (efdr_t *) NULL)
- {
- file->fdr.cbLine = c - file->fdr.cbLineOffset;
- file->fdr.cline = totcount;
- }
-
- if (linecntptr != (long *) NULL)
- *linecntptr += totcount;
-
- c = ecoff_padding_adjust (buf, bufend, c, &bufptr);
-
- return c;
-}
-
-/* Build and swap out the symbols. */
-
-static unsigned long
-ecoff_build_symbols (buf,
- bufend,
- offset,
- extbuf,
- extbufend,
- extoffset,
- ext_strings,
- ext_str_hash)
- char **buf;
- char **bufend;
- unsigned long offset;
- char **extbuf;
- char **extbufend;
- unsigned long *extoffset;
- varray_t *ext_strings;
- struct hash_control *ext_str_hash;
-{
- const bfd_size_type external_sym_size =
- ecoff_backend (stdoutput)->external_sym_size;
- const bfd_size_type external_ext_size =
- ecoff_backend (stdoutput)->external_ext_size;
- void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR))
- = ecoff_backend (stdoutput)->swap_sym_out;
- void (* const swap_ext_out) PARAMS ((bfd *, const EXTR *, PTR))
- = ecoff_backend (stdoutput)->swap_ext_out;
- char *sym_out;
- char *ext_out;
- long isym;
- long iext;
- vlinks_t *file_link;
-
- sym_out = *buf + offset;
- ext_out = *extbuf + *extoffset;
-
- isym = 0;
- iext = 0;
-
- /* The symbols are stored by file. */
- for (file_link = file_desc.first;
- file_link != (vlinks_t *) NULL;
- file_link = file_link->next)
- {
- int ifilesym;
- int fil_cnt;
- efdr_t *fil_ptr;
- efdr_t *fil_end;
-
- if (file_link->next == (vlinks_t *) NULL)
- fil_cnt = file_desc.objects_last_page;
- else
- fil_cnt = file_desc.objects_per_page;
- fil_ptr = file_link->datum->file;
- fil_end = fil_ptr + fil_cnt;
- for (; fil_ptr < fil_end; fil_ptr++)
- {
- vlinks_t *sym_link;
-
- fil_ptr->fdr.isymBase = isym;
- ifilesym = isym;
- for (sym_link = fil_ptr->symbols.first;
- sym_link != (vlinks_t *) NULL;
- sym_link = sym_link->next)
- {
- int sym_cnt;
- localsym_t *sym_ptr;
- localsym_t *sym_end;
-
- if (sym_link->next == (vlinks_t *) NULL)
- sym_cnt = fil_ptr->symbols.objects_last_page;
- else
- sym_cnt = fil_ptr->symbols.objects_per_page;
- sym_ptr = sym_link->datum->sym;
- sym_end = sym_ptr + sym_cnt;
- for (; sym_ptr < sym_end; sym_ptr++)
- {
- int local;
- symbolS *as_sym;
- forward_t *f;
-
- know (sym_ptr->file_ptr == fil_ptr);
-
- /* If there is no associated gas symbol, then this
- is a pure debugging symbol. We have already
- added the name (if any) to fil_ptr->strings.
- Otherwise we must decide whether this is an
- external or a local symbol (actually, it may be
- both if the local provides additional debugging
- information for the external). */
- local = 1;
- as_sym = sym_ptr->as_sym;
- if (as_sym != (symbolS *) NULL)
- {
- symint_t indx;
-
- /* The value of a block start symbol is the
- offset from the start of the procedure. For
- other symbols we just use the gas value (but
- we must offset it by the vma of the section,
- just as BFD does, because BFD will not see
- this value). */
- if (sym_ptr->ecoff_sym.st == (int) st_Block
- && sym_ptr->ecoff_sym.sc == (int) sc_Text)
- {
- symbolS *begin_sym;
-
- know (sym_ptr->proc_ptr != (proc_t *) NULL);
- begin_sym = sym_ptr->proc_ptr->sym->as_sym;
- if (S_GET_SEGMENT (as_sym)
- != S_GET_SEGMENT (begin_sym))
- as_warn (".begin/.bend in different segments");
- sym_ptr->ecoff_sym.value =
- S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
- }
- else
- sym_ptr->ecoff_sym.value =
- (S_GET_VALUE (as_sym)
- + bfd_get_section_vma (stdoutput,
- S_GET_SEGMENT (as_sym)));
-
- /* Set st_Proc to st_StaticProc for local
- functions. */
- if (sym_ptr->ecoff_sym.st == st_Proc
- && S_IS_DEFINED (as_sym)
- && ! S_IS_EXTERNAL (as_sym))
- sym_ptr->ecoff_sym.st = st_StaticProc;
-
- /* Get the type and storage class based on where
- the symbol actually wound up. Traditionally,
- N_LBRAC and N_RBRAC are *not* relocated. */
- indx = sym_ptr->ecoff_sym.index;
- if (sym_ptr->ecoff_sym.st == st_Nil
- && sym_ptr->ecoff_sym.sc == sc_Nil
- && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym)
- || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC)
- && (ECOFF_UNMARK_STAB (indx) != N_RBRAC))))
- {
- segT seg;
- const char *segname;
- st_t st;
- sc_t sc;
-
- seg = S_GET_SEGMENT (as_sym);
- segname = segment_name (seg);
-
- if (S_IS_EXTERNAL (as_sym)
- || ! S_IS_DEFINED (as_sym))
- st = st_Global;
- else if (seg == text_section)
- st = st_Label;
- else
- st = st_Static;
-
- if (! S_IS_DEFINED (as_sym)
- || as_sym->ecoff_undefined)
- {
- if (S_GET_VALUE (as_sym) > 0
- && (S_GET_VALUE (as_sym)
- <= bfd_get_gp_size (stdoutput)))
- sc = sc_SUndefined;
- else
- sc = sc_Undefined;
- }
- else if (S_IS_COMMON (as_sym))
- {
- if (S_GET_VALUE (as_sym) > 0
- && (S_GET_VALUE (as_sym)
- <= bfd_get_gp_size (stdoutput)))
- sc = sc_SCommon;
- else
- sc = sc_Common;
- }
- else if (seg == text_section)
- sc = sc_Text;
- else if (seg == data_section)
- sc = sc_Data;
- else if (strcmp (segname, ".rdata") == 0)
- sc = sc_RData;
- else if (strcmp (segname, ".sdata") == 0)
- sc = sc_SData;
- else if (seg == bss_section)
- sc = sc_Bss;
- else if (strcmp (segname, ".sbss") == 0)
- sc = sc_SBss;
- else if (seg == &bfd_abs_section)
- sc = sc_Abs;
- else
- abort ();
-
- sym_ptr->ecoff_sym.st = (int) st;
- sym_ptr->ecoff_sym.sc = (int) sc;
- }
-
- /* This is just an external symbol if it is
- outside a procedure and it has a type.
- FIXME: g++ will generate symbols which have
- different names in the debugging information
- than the actual symbol. Should we handle
- them here? */
- if ((S_IS_EXTERNAL (as_sym)
- || ! S_IS_DEFINED (as_sym))
- && sym_ptr->proc_ptr == (proc_t *) NULL
- && sym_ptr->ecoff_sym.st != (int) st_Nil
- && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym))
- local = 0;
-
- /* If an st_end symbol has an associated gas
- symbol, then it is a local label created for
- a .bend or .end directive. Stabs line
- numbers will have \001 in the names. */
- if (local
- && sym_ptr->ecoff_sym.st != st_End
- && strchr (sym_ptr->name, '\001') == 0)
- sym_ptr->ecoff_sym.iss =
- add_string (&fil_ptr->strings,
- fil_ptr->str_hash,
- sym_ptr->name,
- (shash_t **) NULL);
- }
-
- /* We now know the index of this symbol; fill in
- locations that have been waiting for that
- information. */
- if (sym_ptr->begin_ptr != (localsym_t *) NULL)
- {
- localsym_t *begin_ptr;
- st_t begin_type;
-
- know (local);
- begin_ptr = sym_ptr->begin_ptr;
- know (begin_ptr->sym_index != -1);
- sym_ptr->ecoff_sym.index = begin_ptr->sym_index;
- if (sym_ptr->ecoff_sym.sc != (int) sc_Info)
- sym_ptr->ecoff_sym.iss = begin_ptr->ecoff_sym.iss;
-
- begin_type = begin_ptr->ecoff_sym.st;
- if (begin_type == st_File
- || begin_type == st_Block)
- {
- begin_ptr->ecoff_sym.index = isym - ifilesym + 1;
- (*swap_sym_out) (stdoutput,
- &begin_ptr->ecoff_sym,
- (*buf
- + offset
- + (begin_ptr->sym_index
- * external_sym_size)));
- }
- else
- {
- know (begin_ptr->index_ptr != (aux_t *) NULL);
- begin_ptr->index_ptr->data.isym =
- isym - ifilesym + 1;
- }
-
- /* The value of the symbol marking the end of a
- procedure is the size of the procedure. The
- value of the symbol marking the end of a
- block is the offset from the start of the
- procedure to the block. */
- if (begin_type == st_Proc)
- {
- know (as_sym != (symbolS *) NULL);
- know (begin_ptr->as_sym != (symbolS *) NULL);
- if (S_GET_SEGMENT (as_sym)
- != S_GET_SEGMENT (begin_ptr->as_sym))
- as_warn (".begin/.bend in different segments");
- sym_ptr->ecoff_sym.value =
- (S_GET_VALUE (as_sym)
- - S_GET_VALUE (begin_ptr->as_sym));
- }
- else if (begin_type == st_Block
- && sym_ptr->ecoff_sym.sc != (int) sc_Info)
- {
- symbolS *begin_sym;
-
- know (as_sym != (symbolS *) NULL);
- know (sym_ptr->proc_ptr != (proc_t *) NULL);
- begin_sym = sym_ptr->proc_ptr->sym->as_sym;
- if (S_GET_SEGMENT (as_sym)
- != S_GET_SEGMENT (begin_sym))
- as_warn (".begin/.bend in different segments");
- sym_ptr->ecoff_sym.value =
- S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
- }
- }
-
- for (f = sym_ptr->forward_ref;
- f != (forward_t *) NULL;
- f = f->next)
- {
- know (local);
- f->ifd_ptr->data.isym = fil_ptr->file_index;
- f->index_ptr->data.rndx.index = isym - ifilesym;
- }
-
- if (local)
- {
- if (*bufend - sym_out < external_sym_size)
- sym_out = ecoff_add_bytes (buf, bufend,
- sym_out,
- external_sym_size);
- (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym,
- sym_out);
- sym_out += external_sym_size;
-
- sym_ptr->sym_index = isym;
-
- if (sym_ptr->proc_ptr != (proc_t *) NULL
- && sym_ptr->proc_ptr->sym == sym_ptr)
- sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
-
- ++isym;
- }
-
- /* If this is an external symbol, swap it out. */
- if (as_sym != (symbolS *) NULL
- && (S_IS_EXTERNAL (as_sym)
- || ! S_IS_DEFINED (as_sym))
- && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym))
- {
- EXTR ext;
-
- memset (&ext, 0, sizeof ext);
- ext.asym = sym_ptr->ecoff_sym;
- if (sym_ptr->ecoff_sym.st == st_Proc
- || sym_ptr->ecoff_sym.st == st_StaticProc)
- {
- know (local);
- ext.asym.index = isym - ifilesym - 1;
- }
- ext.ifd = fil_ptr->file_index;
- ext.asym.iss = add_string (ext_strings,
- ext_str_hash,
- S_GET_NAME (as_sym),
- (shash_t **) NULL);
- if (*extbufend - ext_out < external_ext_size)
- ext_out = ecoff_add_bytes (extbuf, extbufend,
- ext_out,
- external_ext_size);
- (*swap_ext_out) (stdoutput, &ext, ext_out);
- ecoff_set_sym_index (as_sym->bsym, iext);
- ext_out += external_ext_size;
- ++iext;
- }
- }
- }
- fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
- }
- }
-
- *extoffset += iext * external_ext_size;
- return offset + isym * external_sym_size;
-}
-
-/* Swap out the procedure information. */
-
-static unsigned long
-ecoff_build_procs (buf, bufend, offset)
- char **buf;
- char **bufend;
- unsigned long offset;
-{
- const bfd_size_type external_pdr_size
- = ecoff_backend (stdoutput)->external_pdr_size;
- void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR))
- = ecoff_backend (stdoutput)->swap_pdr_out;
- char *pdr_out;
- int first_fil;
- long iproc;
- vlinks_t *file_link;
-
- pdr_out = *buf + offset;
-
- first_fil = 1;
- iproc = 0;
-
- /* The procedures are stored by file. */
- for (file_link = file_desc.first;
- file_link != (vlinks_t *) NULL;
- file_link = file_link->next)
- {
- int fil_cnt;
- efdr_t *fil_ptr;
- efdr_t *fil_end;
-
- if (file_link->next == (vlinks_t *) NULL)
- fil_cnt = file_desc.objects_last_page;
- else
- fil_cnt = file_desc.objects_per_page;
- fil_ptr = file_link->datum->file;
- fil_end = fil_ptr + fil_cnt;
- for (; fil_ptr < fil_end; fil_ptr++)
- {
- vlinks_t *proc_link;
- int first;
-
- fil_ptr->fdr.ipdFirst = iproc;
- first = 1;
- for (proc_link = fil_ptr->procs.first;
- proc_link != (vlinks_t *) NULL;
- proc_link = proc_link->next)
- {
- int prc_cnt;
- proc_t *proc_ptr;
- proc_t *proc_end;
-
- if (proc_link->next == (vlinks_t *) NULL)
- prc_cnt = fil_ptr->procs.objects_last_page;
- else
- prc_cnt = fil_ptr->procs.objects_per_page;
- proc_ptr = proc_link->datum->proc;
- proc_end = proc_ptr + prc_cnt;
- for (; proc_ptr < proc_end; proc_ptr++)
- {
- symbolS *adr_sym;
- unsigned long adr;
-
- adr_sym = proc_ptr->sym->as_sym;
- adr = (S_GET_VALUE (adr_sym)
- + bfd_get_section_vma (stdoutput,
- S_GET_SEGMENT (adr_sym)));
- if (first)
- {
- if (first_fil)
- first_fil = 0;
- else
- fil_ptr->fdr.adr = adr;
- first = 0;
- }
- proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
- if (*bufend - pdr_out < external_pdr_size)
- pdr_out = ecoff_add_bytes (buf, bufend,
- pdr_out,
- external_pdr_size);
- (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out);
- pdr_out += external_pdr_size;
- ++iproc;
- }
- }
- fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
- }
- }
-
- return offset + iproc * external_pdr_size;
-}
-
-/* Swap out the aux information. */
-
-static unsigned long
-ecoff_build_aux (buf, bufend, offset)
- char **buf;
- char **bufend;
- unsigned long offset;
-{
- int bigendian;
- union aux_ext *aux_out;
- long iaux;
- vlinks_t *file_link;
-
- bigendian = stdoutput->xvec->header_byteorder_big_p;
-
- aux_out = (union aux_ext *) (*buf + offset);
-
- iaux = 0;
-
- /* The aux entries are stored by file. */
- for (file_link = file_desc.first;
- file_link != (vlinks_t *) NULL;
- file_link = file_link->next)
- {
- int fil_cnt;
- efdr_t *fil_ptr;
- efdr_t *fil_end;
-
- if (file_link->next == (vlinks_t *) NULL)
- fil_cnt = file_desc.objects_last_page;
- else
- fil_cnt = file_desc.objects_per_page;
- fil_ptr = file_link->datum->file;
- fil_end = fil_ptr + fil_cnt;
- for (; fil_ptr < fil_end; fil_ptr++)
- {
- vlinks_t *aux_link;
-
- fil_ptr->fdr.fBigendian = bigendian;
- fil_ptr->fdr.iauxBase = iaux;
- for (aux_link = fil_ptr->aux_syms.first;
- aux_link != (vlinks_t *) NULL;
- aux_link = aux_link->next)
- {
- int aux_cnt;
- aux_t *aux_ptr;
- aux_t *aux_end;
-
- if (aux_link->next == (vlinks_t *) NULL)
- aux_cnt = fil_ptr->aux_syms.objects_last_page;
- else
- aux_cnt = fil_ptr->aux_syms.objects_per_page;
- aux_ptr = aux_link->datum->aux;
- aux_end = aux_ptr + aux_cnt;
- for (; aux_ptr < aux_end; aux_ptr++)
- {
- if (*bufend - (char *) aux_out < sizeof (union aux_ext))
- aux_out = ((union aux_ext *)
- ecoff_add_bytes (buf, bufend,
- (char *) aux_out,
- sizeof (union aux_ext)));
- switch (aux_ptr->type)
- {
- case aux_tir:
- ecoff_swap_tir_out (bigendian, &aux_ptr->data.ti,
- &aux_out->a_ti);
- break;
- case aux_rndx:
- ecoff_swap_rndx_out (bigendian, &aux_ptr->data.rndx,
- &aux_out->a_rndx);
- break;
- case aux_dnLow:
- AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
- aux_out);
- break;
- case aux_dnHigh:
- AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
- aux_out);
- break;
- case aux_isym:
- AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
- aux_out);
- break;
- case aux_iss:
- AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
- aux_out);
- break;
- case aux_width:
- AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
- aux_out);
- break;
- case aux_count:
- AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
- aux_out);
- break;
- }
-
- ++aux_out;
- ++iaux;
- }
- }
- fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
- }
- }
-
- return offset + iaux * sizeof (union aux_ext);
-}
-
-/* Copy out the strings from a varray_t. This returns the number of
- bytes copied, rather than the new offset. */
-
-static unsigned long
-ecoff_build_strings (buf, bufend, offset, vp)
- char **buf;
- char **bufend;
- unsigned long offset;
- varray_t *vp;
-{
- unsigned long istr;
- char *str_out;
- vlinks_t *str_link;
-
- str_out = *buf + offset;
-
- istr = 0;
-
- for (str_link = vp->first;
- str_link != (vlinks_t *) NULL;
- str_link = str_link->next)
- {
- unsigned long str_cnt;
-
- if (str_link->next == (vlinks_t *) NULL)
- str_cnt = vp->objects_last_page;
- else
- str_cnt = vp->objects_per_page;
-
- if (*bufend - str_out < str_cnt)
- str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
-
- memcpy (str_out, str_link->datum->byte, str_cnt);
- str_out += str_cnt;
- istr += str_cnt;
- }
-
- return istr;
-}
-
-/* Dump out the local strings. */
-
-static unsigned long
-ecoff_build_ss (buf, bufend, offset)
- char **buf;
- char **bufend;
- unsigned long offset;
-{
- long iss;
- vlinks_t *file_link;
-
- iss = 0;
-
- for (file_link = file_desc.first;
- file_link != (vlinks_t *) NULL;
- file_link = file_link->next)
- {
- int fil_cnt;
- efdr_t *fil_ptr;
- efdr_t *fil_end;
-
- if (file_link->next == (vlinks_t *) NULL)
- fil_cnt = file_desc.objects_last_page;
- else
- fil_cnt = file_desc.objects_per_page;
- fil_ptr = file_link->datum->file;
- fil_end = fil_ptr + fil_cnt;
- for (; fil_ptr < fil_end; fil_ptr++)
- {
- long ss_cnt;
+/* These are the pseudo-ops we support in this file. Only those
+ relating to debugging information are supported here.
- fil_ptr->fdr.issBase = iss;
- ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
- &fil_ptr->strings);
- fil_ptr->fdr.cbSs = ss_cnt;
- iss += ss_cnt;
- }
- }
+ The following pseudo-ops from the Kane and Heinrich MIPS book
+ should be defined here, but are currently unsupported: .aent,
+ .bgnb, .endb, .verstamp, .vreg.
- return ecoff_padding_adjust (buf, bufend, offset + iss, (char **) NULL);
-}
+ The following pseudo-ops from the Kane and Heinrich MIPS book are
+ MIPS CPU specific, and should be defined by tc-mips.c: .alias,
+ .extern, .galive, .gjaldef, .gjrlive, .livereg, .noalias, .option,
+ .rdata, .sdata, .set.
-/* Swap out the file descriptors. */
+ The following pseudo-ops from the Kane and Heinrich MIPS book are
+ not MIPS CPU specific, but are also not ECOFF specific. I have
+ only listed the ones which are not already in read.c. It's not
+ completely clear where these should be defined, but tc-mips.c is
+ probably the most reasonable place: .asciiz, .asm0, .endr, .err,
+ .half, .lab, .repeat, .struct, .weakext. */
-static unsigned long
-ecoff_build_fdr (buf, bufend, offset)
- char **buf;
- char **bufend;
- unsigned long offset;
+const pseudo_typeS obj_pseudo_table[] =
{
- const bfd_size_type external_fdr_size
- = ecoff_backend (stdoutput)->external_fdr_size;
- void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR))
- = ecoff_backend (stdoutput)->swap_fdr_out;
- long ifile;
- char *fdr_out;
- vlinks_t *file_link;
-
- ifile = 0;
-
- fdr_out = *buf + offset;
-
- for (file_link = file_desc.first;
- file_link != (vlinks_t *) NULL;
- file_link = file_link->next)
- {
- int fil_cnt;
- efdr_t *fil_ptr;
- efdr_t *fil_end;
+ /* COFF style debugging information. .ln is not used; .loc is used
+ instead. */
+ { "def", ecoff_directive_def, 0 },
+ { "dim", ecoff_directive_dim, 0 },
+ { "endef", ecoff_directive_endef, 0 },
+ { "file", ecoff_directive_file, 0 },
+ { "scl", ecoff_directive_scl, 0 },
+ { "size", ecoff_directive_size, 0 },
+ { "tag", ecoff_directive_tag, 0 },
+ { "type", ecoff_directive_type, 0 },
+ { "val", ecoff_directive_val, 0 },
- if (file_link->next == (vlinks_t *) NULL)
- fil_cnt = file_desc.objects_last_page;
- else
- fil_cnt = file_desc.objects_per_page;
- fil_ptr = file_link->datum->file;
- fil_end = fil_ptr + fil_cnt;
- for (; fil_ptr < fil_end; fil_ptr++)
- {
- if (*bufend - fdr_out < external_fdr_size)
- fdr_out = ecoff_add_bytes (buf, bufend, fdr_out,
- external_fdr_size);
- (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out);
- fdr_out += external_fdr_size;
- ++ifile;
- }
- }
+ /* ECOFF specific debugging information. */
+ { "begin", ecoff_directive_begin, 0 },
+ { "bend", ecoff_directive_bend, 0 },
+ { "end", ecoff_directive_end, 0 },
+ { "ent", ecoff_directive_ent, 0 },
+ { "fmask", ecoff_directive_fmask, 0 },
+ { "frame", ecoff_directive_frame, 0 },
+ { "loc", ecoff_directive_loc, 0 },
+ { "mask", ecoff_directive_mask, 0 },
+
+ /* These are used on Irix. I don't know how to implement them. */
+ { "bgnb", s_ignore, 0 },
+ { "endb", s_ignore, 0 },
+ { "verstamp", s_ignore, 0 },
- return offset + ifile * external_fdr_size;
-}
+ /* Sentinel. */
+ { NULL }
+};
/* Swap out the symbols and debugging information for BFD. */
void
ecoff_frob_file ()
{
- const struct ecoff_backend_data * const backend = ecoff_backend (stdoutput);
- const bfd_size_type external_pdr_size = backend->external_pdr_size;
- tag_t *ptag;
- tag_t *ptag_next;
- efdr_t *fil_ptr;
- int end_warning;
- efdr_t *hold_file_ptr;
- proc_t * hold_proc_ptr;
+ const struct ecoff_debug_swap * const debug_swap
+ = &ecoff_backend (stdoutput)->debug_swap;
bfd_vma addr;
asection *sec;
- symbolS *sym;
HDRR *hdr;
char *buf;
- char *bufend;
- unsigned long offset;
- char *extbuf;
- char *extbufend;
- unsigned long extoffset;
- varray_t ext_strings;
- static varray_t init_ext_strings = INIT_VARRAY (char);
- struct hash_control *ext_str_hash;
char *set;
- /* Make sure we have a file. */
- if (first_file == (efdr_t *) NULL)
- add_file ((const char *) NULL, 0);
-
- /* Handle any top level tags. */
- for (ptag = top_tag_head->first_tag;
- ptag != (tag_t *) NULL;
- ptag = ptag_next)
- {
- if (ptag->forward_ref != (forward_t *) NULL)
- add_unknown_tag (ptag);
-
- ptag_next = ptag->same_block;
- ptag->hash_ptr->tag_ptr = ptag->same_name;
- free_tag (ptag);
- }
-
- free_thead (top_tag_head);
-
- /* Output an ending symbol for all the files. We have to do this
- here for the last file, so we may as well do it for all of the
- files. */
- end_warning = 0;
- for (fil_ptr = first_file;
- fil_ptr != (efdr_t *) NULL;
- fil_ptr = fil_ptr->next_file)
- {
- cur_file_ptr = fil_ptr;
- while (cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
- {
- cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
- if (! end_warning)
- {
- as_warn ("Missing .end or .bend at end of file");
- end_warning = 1;
- }
- }
- (void) add_ecoff_symbol ((const char *) NULL,
- st_End, sc_Text,
- (symbolS *) NULL,
- (symint_t) 0,
- (symint_t) 0);
- }
-
/* Set the section VMA values. */
addr = 0;
for (sec = stdoutput->sections; sec != (asection *) NULL; sec = sec->next)
addr += bfd_section_size (stdoutput, sec);
}
- /* Look through the symbols. Add debugging information for each
- symbol that has not already received it. */
- hold_file_ptr = cur_file_ptr;
- hold_proc_ptr = cur_proc_ptr;
- cur_proc_ptr = (proc_t *) NULL;
- for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
- {
- if (sym->ecoff_symbol
- || sym->ecoff_file == (efdr_t *) NULL
- || (sym->bsym->flags & BSF_SECTION_SYM) != 0)
- continue;
-
- cur_file_ptr = sym->ecoff_file;
- add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
- S_GET_VALUE (sym), indexNil);
- }
- cur_proc_ptr = hold_proc_ptr;
- cur_file_ptr = hold_file_ptr;
-
- /* Build the symbolic information. */
- hdr = &ecoff_data (stdoutput)->symbolic_header;
- offset = 0;
- buf = xmalloc (PAGE_SIZE);
- bufend = buf + PAGE_SIZE;
-
- /* Build the line number information. */
- hdr->cbLineOffset = offset;
- offset = ecoff_build_lineno (&buf, &bufend, offset, &hdr->ilineMax);
- hdr->cbLine = offset - hdr->cbLineOffset;
-
- /* We don't use dense numbers at all. */
- hdr->idnMax = 0;
- hdr->cbDnOffset = 0;
-
- /* We can't build the PDR table until we have built the symbols,
- because a PDR contains a symbol index. However, we set aside
- space at this point. */
- hdr->ipdMax = proc_cnt;
- hdr->cbPdOffset = offset;
- if (bufend - (buf + offset) < proc_cnt * external_pdr_size)
- (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
- proc_cnt * external_pdr_size);
- offset += proc_cnt * external_pdr_size;
-
- /* Build the symbols. It's convenient to build both the local and
- external symbols at the same time. We can put the local symbols
- directly into the buffer, but we have to hold the external
- symbols apart until we know where they are going to go. */
- extbuf = xmalloc (PAGE_SIZE);
- extbufend = extbuf + PAGE_SIZE;
- extoffset = 0;
- ext_strings = init_ext_strings;
- ext_str_hash = hash_new ();
- hdr->cbSymOffset = offset;
- offset = ecoff_build_symbols (&buf, &bufend, offset,
- &extbuf, &extbufend, &extoffset,
- &ext_strings, ext_str_hash);
- hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size;
-
- /* Building the symbols initializes the symbol index in the PDR's.
- Now we can swap out the PDR's. */
- (void) ecoff_build_procs (&buf, &bufend, hdr->cbPdOffset);
-
- /* We don't use optimization symbols. */
- hdr->ioptMax = 0;
- hdr->cbOptOffset = 0;
-
- /* Swap out the auxiliary type information. */
- hdr->cbAuxOffset = offset;
- offset = ecoff_build_aux (&buf, &bufend, offset);
- hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
+ /* Build the ECOFF debugging information. */
+ hdr = &ecoff_data (stdoutput)->debug_info.symbolic_header;
+ ecoff_build_debug (hdr, &buf, debug_swap);
- /* Copy out the local strings. */
- hdr->cbSsOffset = offset;
- offset = ecoff_build_ss (&buf, &bufend, offset);
- hdr->issMax = offset - hdr->cbSsOffset;
-
- /* Copy out the external strings. */
- hdr->cbSsExtOffset = offset;
- offset += ecoff_build_strings (&buf, &bufend, offset, &ext_strings);
- offset = ecoff_padding_adjust (&buf, &bufend, offset, (char **) NULL);
- hdr->issExtMax = offset - hdr->cbSsExtOffset;
-
- /* We don't use relative file descriptors. */
- hdr->crfd = 0;
- hdr->cbRfdOffset = 0;
-
- /* Swap out the file descriptors. */
- hdr->cbFdOffset = offset;
- offset = ecoff_build_fdr (&buf, &bufend, offset);
- hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
-
- /* Copy out the external symbols. */
- hdr->cbExtOffset = offset;
- if (bufend - (buf + offset) < extoffset)
- (void) ecoff_add_bytes (&buf, &bufend, buf + offset, extoffset);
- memcpy (buf + offset, extbuf, extoffset);
- offset += extoffset;
- hdr->iextMax = (offset - hdr->cbExtOffset) / backend->external_ext_size;
-
- know ((offset & (backend->debug_align - 1)) == 0);
-
- /* That completes the symbolic debugging information. We must now
- finish up the symbolic header and the ecoff_tdata structure. */
+ /* Finish up the ecoff_tdata structure. */
set = buf;
#define SET(ptr, count, type, size) \
- ecoff_data (stdoutput)->ptr = (type) set; \
- set += hdr->count * size
+ if (hdr->count == 0) \
+ ecoff_data (stdoutput)->debug_info.ptr = (type) NULL; \
+ else \
+ { \
+ ecoff_data (stdoutput)->debug_info.ptr = (type) set; \
+ set += hdr->count * size; \
+ }
SET (line, cbLine, unsigned char *, sizeof (unsigned char));
- SET (external_dnr, idnMax, PTR, backend->external_dnr_size);
- SET (external_pdr, ipdMax, PTR, backend->external_pdr_size);
- SET (external_sym, isymMax, PTR, backend->external_sym_size);
- SET (external_opt, ioptMax, PTR, backend->external_opt_size);
+ SET (external_dnr, idnMax, PTR, debug_swap->external_dnr_size);
+ SET (external_pdr, ipdMax, PTR, debug_swap->external_pdr_size);
+ SET (external_sym, isymMax, PTR, debug_swap->external_sym_size);
+ SET (external_opt, ioptMax, PTR, debug_swap->external_opt_size);
SET (external_aux, iauxMax, union aux_ext *, sizeof (union aux_ext));
SET (ss, issMax, char *, sizeof (char));
SET (ssext, issExtMax, char *, sizeof (char));
- SET (external_rfd, crfd, PTR, backend->external_rfd_size);
- SET (external_fdr, ifdMax, PTR, backend->external_fdr_size);
- SET (external_ext, iextMax, PTR, backend->external_ext_size);
+ SET (external_rfd, crfd, PTR, debug_swap->external_rfd_size);
+ SET (external_fdr, ifdMax, PTR, debug_swap->external_fdr_size);
+ SET (external_ext, iextMax, PTR, debug_swap->external_ext_size);
#undef SET
as_fatal ("Can't write REGINFO section");
}
- ecoff_data (stdoutput)->raw_size = offset;
- ecoff_data (stdoutput)->raw_syments = buf;
-
- hdr->magic = magicSym;
- /* FIXME: what should hdr->vstamp be? */
-
bfd_set_symtab (stdoutput, bfd_get_outsymbols (stdoutput),
(unsigned int) (hdr->isymMax + hdr->iextMax));
}
-\f
-/* Allocate a cluster of pages. */
-
-#ifndef MALLOC_CHECK
-
-static page_t *
-allocate_cluster (npages)
- unsigned long npages;
-{
- register page_t *value = (page_t *) xmalloc (npages * PAGE_USIZE);
-
-#ifdef ECOFF_DEBUG
- if (debug > 3)
- fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
-#endif
-
- memset (value, 0, npages * PAGE_USIZE);
-
- return value;
-}
-
-
-static page_t *cluster_ptr = NULL;
-static unsigned long pages_left = 0;
-
-#endif /* MALLOC_CHECK */
-
-/* Allocate one page (which is initialized to 0). */
-
-static page_t *
-allocate_page ()
-{
-#ifndef MALLOC_CHECK
-
- if (pages_left == 0)
- {
- pages_left = MAX_CLUSTER_PAGES;
- cluster_ptr = allocate_cluster (pages_left);
- }
-
- pages_left--;
- return cluster_ptr++;
-
-#else /* MALLOC_CHECK */
-
- page_t *ptr;
-
- ptr = xmalloc (PAGE_USIZE);
- memset (ptr, 0, PAGE_USIZE);
- return ptr;
-
-#endif /* MALLOC_CHECK */
-}
-\f
-/* Allocate scoping information. */
-
-static scope_t *
-allocate_scope ()
-{
- register scope_t *ptr;
- static scope_t initial_scope;
-
-#ifndef MALLOC_CHECK
-
- ptr = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
- if (ptr != (scope_t *) NULL)
- alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
- else
- {
- register int unallocated = alloc_counts[(int)alloc_type_scope].unallocated;
- register page_t *cur_page = alloc_counts[(int)alloc_type_scope].cur_page;
-
- if (unallocated == 0)
- {
- unallocated = PAGE_SIZE / sizeof (scope_t);
- alloc_counts[(int)alloc_type_scope].cur_page = cur_page = allocate_page ();
- alloc_counts[(int)alloc_type_scope].total_pages++;
- }
-
- ptr = &cur_page->scope[--unallocated];
- alloc_counts[(int)alloc_type_scope].unallocated = unallocated;
- }
-
-#else
-
- ptr = (scope_t *) xmalloc (sizeof (scope_t));
-
-#endif
-
- alloc_counts[(int)alloc_type_scope].total_alloc++;
- *ptr = initial_scope;
- return ptr;
-}
-
-/* Free scoping information. */
-
-static void
-free_scope (ptr)
- scope_t *ptr;
-{
- alloc_counts[(int)alloc_type_scope].total_free++;
-
-#ifndef MALLOC_CHECK
- ptr->free = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
- alloc_counts[(int)alloc_type_scope].free_list.f_scope = ptr;
-#else
- free ((PTR) ptr);
-#endif
-}
-\f
-/* Allocate links for pages in a virtual array. */
-
-static vlinks_t *
-allocate_vlinks ()
-{
- register vlinks_t *ptr;
- static vlinks_t initial_vlinks;
-
-#ifndef MALLOC_CHECK
-
- register int unallocated = alloc_counts[(int)alloc_type_vlinks].unallocated;
- register page_t *cur_page = alloc_counts[(int)alloc_type_vlinks].cur_page;
-
- if (unallocated == 0)
- {
- unallocated = PAGE_SIZE / sizeof (vlinks_t);
- alloc_counts[(int)alloc_type_vlinks].cur_page = cur_page = allocate_page ();
- alloc_counts[(int)alloc_type_vlinks].total_pages++;
- }
-
- ptr = &cur_page->vlinks[--unallocated];
- alloc_counts[(int)alloc_type_vlinks].unallocated = unallocated;
-
-#else
-
- ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
-
-#endif
-
- alloc_counts[(int)alloc_type_vlinks].total_alloc++;
- *ptr = initial_vlinks;
- return ptr;
-}
-\f
-/* Allocate string hash buckets. */
-
-static shash_t *
-allocate_shash ()
-{
- register shash_t *ptr;
- static shash_t initial_shash;
-
-#ifndef MALLOC_CHECK
-
- register int unallocated = alloc_counts[(int)alloc_type_shash].unallocated;
- register page_t *cur_page = alloc_counts[(int)alloc_type_shash].cur_page;
-
- if (unallocated == 0)
- {
- unallocated = PAGE_SIZE / sizeof (shash_t);
- alloc_counts[(int)alloc_type_shash].cur_page = cur_page = allocate_page ();
- alloc_counts[(int)alloc_type_shash].total_pages++;
- }
-
- ptr = &cur_page->shash[--unallocated];
- alloc_counts[(int)alloc_type_shash].unallocated = unallocated;
-
-#else
-
- ptr = (shash_t *) xmalloc (sizeof (shash_t));
-
-#endif
-
- alloc_counts[(int)alloc_type_shash].total_alloc++;
- *ptr = initial_shash;
- return ptr;
-}
-\f
-/* Allocate type hash buckets. */
-
-static thash_t *
-allocate_thash ()
-{
- register thash_t *ptr;
- static thash_t initial_thash;
-
-#ifndef MALLOC_CHECK
-
- register int unallocated = alloc_counts[(int)alloc_type_thash].unallocated;
- register page_t *cur_page = alloc_counts[(int)alloc_type_thash].cur_page;
-
- if (unallocated == 0)
- {
- unallocated = PAGE_SIZE / sizeof (thash_t);
- alloc_counts[(int)alloc_type_thash].cur_page = cur_page = allocate_page ();
- alloc_counts[(int)alloc_type_thash].total_pages++;
- }
-
- ptr = &cur_page->thash[--unallocated];
- alloc_counts[(int)alloc_type_thash].unallocated = unallocated;
-
-#else
-
- ptr = (thash_t *) xmalloc (sizeof (thash_t));
-
-#endif
-
- alloc_counts[(int)alloc_type_thash].total_alloc++;
- *ptr = initial_thash;
- return ptr;
-}
-\f
-/* Allocate structure, union, or enum tag information. */
-
-static tag_t *
-allocate_tag ()
-{
- register tag_t *ptr;
- static tag_t initial_tag;
-
-#ifndef MALLOC_CHECK
-
- ptr = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
- if (ptr != (tag_t *) NULL)
- alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr->free;
- else
- {
- register int unallocated = alloc_counts[(int)alloc_type_tag].unallocated;
- register page_t *cur_page = alloc_counts[(int)alloc_type_tag].cur_page;
-
- if (unallocated == 0)
- {
- unallocated = PAGE_SIZE / sizeof (tag_t);
- alloc_counts[(int)alloc_type_tag].cur_page = cur_page = allocate_page ();
- alloc_counts[(int)alloc_type_tag].total_pages++;
- }
-
- ptr = &cur_page->tag[--unallocated];
- alloc_counts[(int)alloc_type_tag].unallocated = unallocated;
- }
-
-#else
-
- ptr = (tag_t *) xmalloc (sizeof (tag_t));
-
-#endif
-
- alloc_counts[(int)alloc_type_tag].total_alloc++;
- *ptr = initial_tag;
- return ptr;
-}
-
-/* Free scoping information. */
-
-static void
-free_tag (ptr)
- tag_t *ptr;
-{
- alloc_counts[(int)alloc_type_tag].total_free++;
-
-#ifndef MALLOC_CHECK
- ptr->free = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
- alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr;
-#else
- free ((PTR_T) ptr);
-#endif
-}
-\f
-/* Allocate forward reference to a yet unknown tag. */
-
-static forward_t *
-allocate_forward ()
-{
- register forward_t *ptr;
- static forward_t initial_forward;
-
-#ifndef MALLOC_CHECK
-
- register int unallocated = alloc_counts[(int)alloc_type_forward].unallocated;
- register page_t *cur_page = alloc_counts[(int)alloc_type_forward].cur_page;
-
- if (unallocated == 0)
- {
- unallocated = PAGE_SIZE / sizeof (forward_t);
- alloc_counts[(int)alloc_type_forward].cur_page = cur_page = allocate_page ();
- alloc_counts[(int)alloc_type_forward].total_pages++;
- }
-
- ptr = &cur_page->forward[--unallocated];
- alloc_counts[(int)alloc_type_forward].unallocated = unallocated;
-
-#else
-
- ptr = (forward_t *) xmalloc (sizeof (forward_t));
-
-#endif
-
- alloc_counts[(int)alloc_type_forward].total_alloc++;
- *ptr = initial_forward;
- return ptr;
-}
-\f
-/* Allocate head of type hash list. */
-
-static thead_t *
-allocate_thead ()
-{
- register thead_t *ptr;
- static thead_t initial_thead;
-
-#ifndef MALLOC_CHECK
-
- ptr = alloc_counts[(int)alloc_type_thead].free_list.f_thead;
- if (ptr != (thead_t *) NULL)
- alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
- else
- {
- register int unallocated = alloc_counts[(int)alloc_type_thead].unallocated;
- register page_t *cur_page = alloc_counts[(int)alloc_type_thead].cur_page;
-
- if (unallocated == 0)
- {
- unallocated = PAGE_SIZE / sizeof (thead_t);
- alloc_counts[(int)alloc_type_thead].cur_page = cur_page = allocate_page ();
- alloc_counts[(int)alloc_type_thead].total_pages++;
- }
-
- ptr = &cur_page->thead[--unallocated];
- alloc_counts[(int)alloc_type_thead].unallocated = unallocated;
- }
-
-#else
-
- ptr = (thead_t *) xmalloc (sizeof (thead_t));
-
-#endif
-
- alloc_counts[(int)alloc_type_thead].total_alloc++;
- *ptr = initial_thead;
- return ptr;
-}
-
-/* Free scoping information. */
-
-static void
-free_thead (ptr)
- thead_t *ptr;
-{
- alloc_counts[(int)alloc_type_thead].total_free++;
-
-#ifndef MALLOC_CHECK
- ptr->free = (thead_t *) alloc_counts[(int)alloc_type_thead].free_list.f_thead;
- alloc_counts[(int)alloc_type_thead].free_list.f_thead = ptr;
-#else
- free ((PTR_T) ptr);
-#endif
-}
-\f
-static lineno_list_t *
-allocate_lineno_list ()
-{
- register lineno_list_t *ptr;
- static lineno_list_t initial_lineno_list;
-
-#ifndef MALLOC_CHECK
-
- register int unallocated = alloc_counts[(int)alloc_type_lineno].unallocated;
- register page_t *cur_page = alloc_counts[(int)alloc_type_lineno].cur_page;
- if (unallocated == 0)
- {
- unallocated = PAGE_SIZE / sizeof (lineno_list_t);
- alloc_counts[(int)alloc_type_lineno].cur_page = cur_page = allocate_page ();
- alloc_counts[(int)alloc_type_lineno].total_pages++;
- }
-
- ptr = &cur_page->lineno[--unallocated];
- alloc_counts[(int)alloc_type_lineno].unallocated = unallocated;
-
-#else
+/* This is called by the ECOFF code to set the external information
+ for a symbol. We just pass it on to BFD, which expects the swapped
+ information to be stored in the native field of the symbol. */
- ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t));
-
-#endif
-
- alloc_counts[(int)alloc_type_lineno].total_alloc++;
- *ptr = initial_lineno_list;
- return ptr;
+void
+obj_ecoff_set_ext (sym, ext)
+ symbolS *sym;
+ EXTR *ext;
+{
+ const struct ecoff_debug_swap * const debug_swap
+ = &ecoff_backend (stdoutput)->debug_swap;
+ ecoff_symbol_type *esym;
+
+ know (bfd_asymbol_flavour (sym->bsym) == bfd_target_ecoff_flavour);
+ esym = ecoffsymbol (sym->bsym);
+ esym->local = false;
+ esym->native = xmalloc (debug_swap->external_ext_size);
+ (*debug_swap->swap_ext_out) (stdoutput, ext, esym->native);
}
projects / binutils-gdb.git / commitdiff