From 16b617648e045601e68a067591450b2956dcdbac Mon Sep 17 00:00:00 2001 From: Douglas B Rupp Date: Tue, 1 Jan 2002 17:15:20 -0500 Subject: [PATCH] vms.h (DWARF2_UNWIND_INFO, [...]): Define. * config/alpha/vms.h (DWARF2_UNWIND_INFO, EH_RETURN_HANDLER_RTX, LINK_EH_SPEC, MD_FALLBACK_FRAME_STATE_FOR): Define. * config/alpha/t-vms (EXTRA_PARTS): Add vms-dwarf2eh.o (vms-dwarf2eh.o): Add Makefile rule. * config/alpha/vms-ld.c (main): Handle vms-dwarf2eh.o. * config/alpha/vms-dwarf2eh.asm: New file. From-SVN: r48451 --- gcc/ChangeLog | 7 + gcc/config/alpha/t-vms | 7 +- gcc/config/alpha/vms-dwarf2eh.asm | 37 +++ gcc/config/alpha/vms-ld.c | 25 +- gcc/config/alpha/vms.h | 449 ++++++++++++++++++++++++++++++ 5 files changed, 518 insertions(+), 7 deletions(-) create mode 100644 gcc/config/alpha/vms-dwarf2eh.asm diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f7bb480a769..dfc09c8ea44 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,12 @@ 2002-01-01 Douglas B Rupp + * config/alpha/vms.h (DWARF2_UNWIND_INFO, EH_RETURN_HANDLER_RTX, + LINK_EH_SPEC, MD_FALLBACK_FRAME_STATE_FOR): Define. + * config/alpha/t-vms (EXTRA_PARTS): Add vms-dwarf2eh.o + (vms-dwarf2eh.o): Add Makefile rule. + * config/alpha/vms-ld.c (main): Handle vms-dwarf2eh.o. + * config/alpha/vms-dwarf2eh.asm: New file. + * gcc.c (delete_if_ordinary): Delete all versions. 2002-01-01 Hans-Peter Nilsson diff --git a/gcc/config/alpha/t-vms b/gcc/config/alpha/t-vms index 359f6f4668a..5057c317a6b 100644 --- a/gcc/config/alpha/t-vms +++ b/gcc/config/alpha/t-vms @@ -3,12 +3,15 @@ LIB2FUNCS_EXTRA = $(srcdir)/config/alpha/vms_tramp.asm # VMS_EXTRA_PARTS is defined in x-vms and represent object files that # are only needed for VMS targets, but can only be compiled on a VMS host # (because they need DEC C). -EXTRA_PARTS = vms-dwarf2.o $(VMS_EXTRA_PARTS) +EXTRA_PARTS = vms-dwarf2.o vms-dwarf2eh.o $(VMS_EXTRA_PARTS) # This object must be linked with in order to make the executable debuggable. # vms-ld handles it automatically when passed -g. vms-dwarf2.o : $(srcdir)/config/alpha/vms-dwarf2.asm - gcc -c -x assembler $< + gcc -c -x assembler $< -o $@ + +vms-dwarf2eh.o : $(srcdir)/config/alpha/vms-dwarf2eh.asm + gcc -c -x assembler $< -o $@ # Assemble startup files. vcrt0.o: $(CRT0_S) $(GCC_PASSES) diff --git a/gcc/config/alpha/vms-dwarf2eh.asm b/gcc/config/alpha/vms-dwarf2eh.asm new file mode 100644 index 00000000000..22f70503511 --- /dev/null +++ b/gcc/config/alpha/vms-dwarf2eh.asm @@ -0,0 +1,37 @@ +/* VMS dwarf2 exception handling section sequentializer. + Copyright (C) 2002 Free Software Foundation, Inc. + Contributed by Douglas B. Rupp (rupp@gnat.com). + +This file is part of GNU CC. + +GNU CC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +In addition to the permissions in the GNU General Public License, the +Free Software Foundation gives you unlimited permission to link the +compiled version of this file into combinations with other programs, +and to distribute those combinations without any restriction coming +from the use of this file. (The General Public License restrictions +do apply in other respects; for example, they cover modification of +the file, and distribution when not linked into a combine +executable.) + +GNU CC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +/* Linking with this file forces the Dwarf2 EH section to be + individually loaded by the VMS linker an the unwinder to read it. */ + +.section .eh_frame,NOWRT + .align 0 + .global __EH_FRAME_BEGIN__ +__EH_FRAME_BEGIN__: diff --git a/gcc/config/alpha/vms-ld.c b/gcc/config/alpha/vms-ld.c index c02fe406d91..83ceaf9b031 100644 --- a/gcc/config/alpha/vms-ld.c +++ b/gcc/config/alpha/vms-ld.c @@ -1,5 +1,6 @@ /* VMS linker wrapper. - Copyright (C) 1996-2001 Free Software Foundation, Inc. + Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002 + Free Software Foundation, Inc. Contributed by Douglas B. Rupp (rupp@gnat.com). This file is part of GNU CC. @@ -38,6 +39,9 @@ typedef struct dsc {unsigned short len, mbz; char *adr; } Descr; /* File specification for vms-dwarf2.o. */ static char *vmsdwarf2spec = 0; +/* File specification for vms-dwarf2eh.o. */ +static char *vmsdwarf2ehspec = 0; + /* verbose = 1 if -v passed. */ static int verbose = 0; @@ -589,8 +593,11 @@ main (argc, argv) buff_len = strlen (buff); - if (buff_len >= 13 - && strcasecmp (&buff[buff_len-13],"vms-dwarf2.o\n") == 0) + if (buff_len >= 15 + && strcasecmp (&buff[buff_len - 15], "vms-dwarf2eh.o\n") == 0) + vmsdwarf2ehspec = xstrdup (buff); + else if (buff_len >= 13 + && strcasecmp (&buff[buff_len - 13],"vms-dwarf2.o\n") == 0) vmsdwarf2spec = xstrdup (buff); else if (is_cld) { @@ -607,14 +614,22 @@ main (argc, argv) fprintf (optfile, "symbol_vector=(main=procedure)\n"); #endif + if (vmsdwarf2ehspec) + { + fprintf (optfile, "case_sensitive=yes\n"); + fprintf (optfile, "cluster=DWARF2eh,,,%s", vmsdwarf2ehspec); + fprintf (optfile, "collect=DWARF2eh,eh_frame\n"); + fprintf (optfile, "case_sensitive=NO\n"); + } + if (debug && vmsdwarf2spec) { fprintf (optfile, "case_sensitive=yes\n"); fprintf (optfile, "cluster=DWARF2debug,,,%s", vmsdwarf2spec); fprintf (optfile, "collect=DWARF2debug,debug_abbrev,debug_aranges,-\n"); fprintf (optfile, " debug_frame,debug_info,debug_line,debug_loc,-\n"); - fprintf (optfile, - " debug_macinfo,debug_pubnames,debug_str,debug_zzzzzz\n"); + fprintf (optfile, " debug_macinfo,debug_pubnames,debug_str,-\n"); + fprintf (optfile, " debug_zzzzzz\n"); fprintf (optfile, "case_sensitive=NO\n"); } diff --git a/gcc/config/alpha/vms.h b/gcc/config/alpha/vms.h index bfaa13aca13..ca3474829c9 100644 --- a/gcc/config/alpha/vms.h +++ b/gcc/config/alpha/vms.h @@ -1,3 +1,401 @@ +/* Output variables, constants and external declarations, for GNU compiler. + Copyright (C) 1996, 1997, 1998, 2000, 2001, 2002 + Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU CC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +#define TARGET_OBJECT_SUFFIX ".obj" +#define TARGET_EXECUTABLE_SUFFIX ".exe" + +/* This enables certain macros in alpha.h, which will make an indirect + reference to an external symbol an invalid address. This needs to be + defined before we include alpha.h, since it determines which macros + are used for GO_IF_*. */ + +#define NO_EXTERNAL_INDIRECT_ADDRESS + +#include "alpha/alpha.h" + +#undef CPP_PREDEFINES +#define CPP_PREDEFINES \ +"-D__ALPHA -Dvms -DVMS -D__vms__ -D__VMS__ -Asystem=vms" + +#undef CPP_SUBTARGET_SPEC +#define CPP_SUBTARGET_SPEC "\ +%{mfloat-ieee:-D__IEEE_FLOAT} \ +%{mfloat-vax:-D__G_FLOAT} \ +%{!mfloat-vax:-D__IEEE_FLOAT}" + +/* By default, allow $ to be part of an identifier. */ +#define DOLLARS_IN_IDENTIFIERS 2 + +#undef TARGET_DEFAULT +#define TARGET_DEFAULT (MASK_FP|MASK_FPREGS|MASK_GAS) +#undef TARGET_ABI_OPEN_VMS +#define TARGET_ABI_OPEN_VMS 1 + +#undef TARGET_NAME +#define TARGET_NAME "OpenVMS/Alpha" +#undef TARGET_VERSION +#define TARGET_VERSION fprintf (stderr, " (%s)", TARGET_NAME); + +/* The structure return address arrives as an "argument" on VMS. */ +#undef STRUCT_VALUE_REGNUM +#define STRUCT_VALUE 0 +#undef PCC_STATIC_STRUCT_RETURN + +/* "long" is 32 bits, but 64 bits for Ada. */ +#undef LONG_TYPE_SIZE +#define LONG_TYPE_SIZE 32 +#define ADA_LONG_TYPE_SIZE 64 + +/* Pointer is 32 bits but the hardware has 64-bit addresses, sign extended. */ +#undef POINTER_SIZE +#define POINTER_SIZE 32 +#define POINTERS_EXTEND_UNSIGNED 0 + +#define MAX_OFILE_ALIGNMENT 524288 /* 8 x 2^16 by DEC Ada Test CD40VRA */ + +#undef FIXED_REGISTERS +#define FIXED_REGISTERS \ + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, \ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 } + +#undef CALL_USED_REGISTERS +#define CALL_USED_REGISTERS \ + {1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, \ + 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, \ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } + +/* List the order in which to allocate registers. Each register must be + listed once, even those in FIXED_REGISTERS. + + We allocate in the following order: + $f1 (nonsaved floating-point register) + $f10-$f15 (likewise) + $f22-$f30 (likewise) + $f21-$f16 (likewise, but input args) + $f0 (nonsaved, but return value) + $f2-$f9 (saved floating-point registers) + $1 (nonsaved integer registers) + $22-$25 (likewise) + $28 (likewise) + $0 (likewise, but return value) + $21-$16 (likewise, but input args) + $27 (procedure value in OSF, nonsaved in NT) + $2-$8 (saved integer registers) + $9-$14 (saved integer registers) + $26 (return PC) + $15 (frame pointer) + $29 (global pointer) + $30, $31, $f31 (stack pointer and always zero/ap & fp) */ + +#undef REG_ALLOC_ORDER +#define REG_ALLOC_ORDER \ + {33, \ + 42, 43, 44, 45, 46, 47, \ + 54, 55, 56, 57, 58, 59, 60, 61, 62, \ + 53, 52, 51, 50, 49, 48, \ + 32, \ + 34, 35, 36, 37, 38, 39, 40, 41, \ + 1, \ + 22, 23, 24, 25, \ + 28, \ + 0, \ + 21, 20, 19, 18, 17, 16, \ + 27, \ + 2, 3, 4, 5, 6, 7, 8, \ + 9, 10, 11, 12, 13, 14, \ + 26, \ + 15, \ + 29, \ + 30, 31, 63 } + +#undef HARD_FRAME_POINTER_REGNUM +#define HARD_FRAME_POINTER_REGNUM 29 + +/* Define registers used by the epilogue and return instruction. */ +#undef EPILOGUE_USES +#define EPILOGUE_USES(REGNO) ((REGNO) == 26 || (REGNO) == 29) + +#undef CAN_ELIMINATE +#define CAN_ELIMINATE(FROM, TO) \ +((TO) != STACK_POINTER_REGNUM || ! alpha_using_fp ()) + +#undef INITIAL_ELIMINATION_OFFSET +#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ +{ if ((FROM) == FRAME_POINTER_REGNUM) \ + (OFFSET) = alpha_sa_size () + alpha_pv_save_size (); \ + else if ((FROM) == ARG_POINTER_REGNUM) \ + (OFFSET) = (ALPHA_ROUND (alpha_sa_size () + alpha_pv_save_size () \ + + get_frame_size () \ + + current_function_pretend_args_size) \ + - current_function_pretend_args_size); \ + else \ + abort(); \ + if ((TO) == STACK_POINTER_REGNUM) \ + (OFFSET) += ALPHA_ROUND (current_function_outgoing_args_size); \ +} + +/* Define a data type for recording info about an argument list + during the scan of that argument list. This data type should + hold all necessary information about the function itself + and about the args processed so far, enough to enable macros + such as FUNCTION_ARG to determine where the next arg should go. + + On Alpha/VMS, this is a structure that contains the number of + arguments and, for each argument, the datatype of that argument. + + The number of arguments is a number of words of arguments scanned so far. + Thus 6 or more means all following args should go on the stack. */ + +enum avms_arg_type {I64, FF, FD, FG, FS, FT}; +typedef struct {int num_args; enum avms_arg_type atypes[6];} avms_arg_info; + +#undef CUMULATIVE_ARGS +#define CUMULATIVE_ARGS avms_arg_info + +/* Initialize a variable CUM of type CUMULATIVE_ARGS + for a call to a function whose data type is FNTYPE. + For a library call, FNTYPE is 0. */ + +#undef INIT_CUMULATIVE_ARGS +#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME,INDIRECT) \ + (CUM).num_args = 0; \ + (CUM).atypes[0] = (CUM).atypes[1] = (CUM).atypes[2] = I64; \ + (CUM).atypes[3] = (CUM).atypes[4] = (CUM).atypes[5] = I64; + +#undef FUNCTION_ARG_ADVANCE +#define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \ + if (MUST_PASS_IN_STACK (MODE, TYPE)) \ + (CUM).num_args += 6; \ + else \ + { \ + if ((CUM).num_args < 6) \ + (CUM).atypes[(CUM).num_args] = alpha_arg_type (MODE); \ + \ + (CUM).num_args += ALPHA_ARG_SIZE (MODE, TYPE, NAMED); \ + } + +/* For an arg passed partly in registers and partly in memory, + this is the number of registers used. + For args passed entirely in registers or entirely in memory, zero. */ + +#undef FUNCTION_ARG_PARTIAL_NREGS +#define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) \ +((CUM).num_args < 6 && 6 < (CUM).num_args \ + + ALPHA_ARG_SIZE (MODE, TYPE, NAMED) \ + ? 6 - (CUM).num_args : 0) + +/* Perform any needed actions needed for a function that is receiving a + variable number of arguments. + + CUM is as for INIT_CUMULATIVE_ARGS. + + MODE and TYPE are the mode and type of the current parameter. + + PRETEND_SIZE is a variable that should be set to the amount of stack + that must be pushed by the prolog to pretend that our caller pushed + it. + + Normally, this macro will push all remaining incoming registers on the + stack and set PRETEND_SIZE to the length of the registers pushed. + + For VMS, we allocate space for all 6 arg registers plus a count. + + However, if NO registers need to be saved, don't allocate any space. + This is not only because we won't need the space, but because AP includes + the current_pretend_args_size and we don't want to mess up any + ap-relative addresses already made. */ + +#undef SETUP_INCOMING_VARARGS +#define SETUP_INCOMING_VARARGS(CUM,MODE,TYPE,PRETEND_SIZE,NO_RTL) \ +{ if ((CUM).num_args < 6) \ + { \ + if (! (NO_RTL)) \ + { \ + emit_move_insn (gen_rtx_REG (DImode, 1), \ + virtual_incoming_args_rtx); \ + emit_insn (gen_arg_home ()); \ + } \ + \ + PRETEND_SIZE = 7 * UNITS_PER_WORD; \ + } \ +} + +/* ABI has stack checking, but it's broken. */ +#undef STACK_CHECK_BUILTIN +#define STACK_CHECK_BUILTIN 0 + +#undef ASM_FILE_START +#define ASM_FILE_START(FILE) \ +{ \ + alpha_write_verstamp (FILE); \ + fprintf (FILE, "\t.set noreorder\n"); \ + fprintf (FILE, "\t.set volatile\n"); \ + ASM_OUTPUT_SOURCE_FILENAME (FILE, main_input_filename); \ +} + +#define LINK_SECTION_ASM_OP "\t.link" +#define READONLY_SECTION_ASM_OP "\t.rdata" +#define LITERALS_SECTION_ASM_OP "\t.literals" +#define CTORS_SECTION_ASM_OP "\t.ctors" +#define DTORS_SECTION_ASM_OP "\t.dtors" + +#undef EXTRA_SECTIONS +#define EXTRA_SECTIONS in_link, in_rdata, in_literals + +#undef EXTRA_SECTION_FUNCTIONS +#define EXTRA_SECTION_FUNCTIONS \ +void \ +readonly_section () \ +{ \ + if (in_section != in_rdata) \ + { \ + fprintf (asm_out_file, "%s\n", READONLY_SECTION_ASM_OP); \ + in_section = in_rdata; \ + } \ +} \ +void \ +link_section () \ +{ \ + if (in_section != in_link) \ + { \ + fprintf (asm_out_file, "%s\n", LINK_SECTION_ASM_OP); \ + in_section = in_link; \ + } \ +} \ +void \ +literals_section () \ +{ \ + if (in_section != in_literals) \ + { \ + fprintf (asm_out_file, "%s\n", LITERALS_SECTION_ASM_OP); \ + in_section = in_literals; \ + } \ +} + +extern void readonly_section PARAMS ((void)); +extern void link_section PARAMS ((void)); +extern void literals_section PARAMS ((void)); + +#undef ASM_OUTPUT_ADDR_DIFF_ELT +#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) abort () + +#undef ASM_OUTPUT_ADDR_VEC_ELT +#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ + fprintf (FILE, "\t.quad $L%d\n", (VALUE)) + +#undef READONLY_DATA_SECTION +#define READONLY_DATA_SECTION readonly_section + +#define ASM_FILE_END(FILE) alpha_write_linkage (FILE); + +#undef CASE_VECTOR_MODE +#define CASE_VECTOR_MODE DImode +#undef CASE_VECTOR_PC_RELATIVE + +#undef ASM_OUTPUT_CASE_LABEL +#define ASM_OUTPUT_CASE_LABEL(FILE,PREFIX,NUM,TABLEINSN) \ +{ ASM_OUTPUT_ALIGN (FILE, 3); ASM_OUTPUT_INTERNAL_LABEL (FILE, PREFIX, NUM); } + +/* This says how to output assembler code to declare an + uninitialized external linkage data object. */ + +#define COMMON_ASM_OP "\t.comm\t" + +#undef ASM_OUTPUT_ALIGNED_COMMON +#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \ +do { \ + fprintf ((FILE), "%s", COMMON_ASM_OP); \ + assemble_name ((FILE), (NAME)); \ + fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \ +} while (0) + + +/* Output assembler code for a block containing the constant parts + of a trampoline, leaving space for the variable parts. + + The trampoline should set the static chain pointer to value placed + into the trampoline and should branch to the specified routine. + Note that $27 has been set to the address of the trampoline, so we can + use it for addressability of the two data items. */ + +#undef TRAMPOLINE_TEMPLATE +#define TRAMPOLINE_TEMPLATE(FILE) \ +{ \ + fprintf (FILE, "\t.quad 0\n"); \ + fprintf (FILE, "\t.linkage __tramp\n"); \ + fprintf (FILE, "\t.quad 0\n"); \ +} + +/* Length in units of the trampoline for entering a nested function. */ + +#undef TRAMPOLINE_SIZE +#define TRAMPOLINE_SIZE 32 + +/* The alignment of a trampoline, in bits. */ + +#undef TRAMPOLINE_ALIGNMENT +#define TRAMPOLINE_ALIGNMENT 64 + +/* Emit RTL insns to initialize the variable parts of a trampoline. + FNADDR is an RTX for the address of the function's pure code. + CXT is an RTX for the static chain value for the function. */ + +#undef INITIALIZE_TRAMPOLINE +#define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \ + alpha_initialize_trampoline (TRAMP, FNADDR, CXT, 16, 24, -1) + +/* Control how constructors and destructors are emitted. */ +#define TARGET_ASM_CONSTRUCTOR vms_asm_out_constructor +#define TARGET_ASM_DESTRUCTOR vms_asm_out_destructor + +#undef SDB_DEBUGGING_INFO +#undef MIPS_DEBUGGING_INFO +#undef DBX_DEBUGGING_INFO + +#define DWARF2_DEBUGGING_INFO +#define VMS_DEBUGGING_INFO + +#define DWARF2_UNWIND_INFO 1 + +#undef EH_RETURN_HANDLER_RTX +#define EH_RETURN_HANDLER_RTX \ + gen_rtx_MEM (Pmode, plus_constant (stack_pointer_rtx, 8)) + +#define LINK_EH_SPEC "vms-dwarf2eh.o%s" + +#ifdef IN_LIBGCC2 +#include +#include +#endif + +#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \ + do { \ + unsigned long handle; \ + PDSCDEF *pv; \ + INVO_CONTEXT_BLK invo; \ + \ + memset (&invo, 0, sizeof INVO_CONTEXT_BLK); \ /* Output variables, constants and external declarations, for GNU compiler. Copyright (C) 1996, 1997, 1998, 2000, 2001 Free Software Foundation, Inc. @@ -375,6 +773,57 @@ do { \ #define DWARF2_DEBUGGING_INFO #define VMS_DEBUGGING_INFO +#define DWARF2_UNWIND_INFO 1 + +#undef EH_RETURN_HANDLER_RTX +#define EH_RETURN_HANDLER_RTX \ + gen_rtx_MEM (Pmode, plus_constant (stack_pointer_rtx, 8)) + +#define LINK_EH_SPEC "vms-dwarf2eh.o%s" + +#ifdef IN_LIBGCC2 +#include +#include +#endif + +#define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \ + do { \ + unsigned long handle; \ + PDSCDEF *pv; \ + INVO_CONTEXT_BLK invo; \ + \ + invo.libicb$q_ireg [29] = *((long long *) (CONTEXT)->reg [29]); \ + invo.libicb$q_ireg [30] = (long long) (CONTEXT)->cfa \ + handle = LIB$GET_INVO_HANDLE (&invo); \ + LIB$GET_INVO_CONTEXT (handle, &invo); \ + pv = (PDSCDEF *) invo.libicb$ph_procedure_descriptor; \ + \ + if (pv && ((pv->pdsc$w_flags & 0xf) == PDSC$K_KIND_FP_STACK)) \ + { \ + int i, j; \ + \ + (FS)->cfa_offset = pv->pdsc$l_size; \ + (FS)->cfg_reg = pv->pdsc$w_flags & PDSC$M_BASE_REG_IS_FP ? 29 : 30; \ + (FS)->retaddr_column = 26; \ + (FS)->cfa_how = CFA_REG_OFFSET; \ + (FS)->regs.reg[27].loc.offset = -pv->pdsc$l_size; \ + (FS)->regs.reg[27].how = REG_SAVED_OFFSET; \ + (FS)->regs.reg[26].loc.offset \ + = pv->pdsc$w_rsa_offset - pv->pdsc$l_size); \ + (FS)->regs.reg[26].how = REG_SAVED_OFFSET; \ + \ + for (i = 0, j = 0; i < 32; i++) \ + if (1<pdsc$l_ireg_mask) \ + { \ + (FS)->regs.reg[i].loc.offset \ + = pv->pdsc$l_size - pv->pdsc$w_rsa_offset - 8 * j++; \ + (FS)->regs.reg[i].how = REG_SAVED_OFFSET; \ + } \ + \ + goto SUCCESS; \ + } \ +} while (0) + /* This is how to output an assembler line that says to advance the location counter to a multiple of 2**LOG bytes. */ -- 2.30.2