From ed393c169bc7fc344b3574f26d4529e70ec5e081 Mon Sep 17 00:00:00 2001 From: Fred Fish Date: Fri, 26 Jul 1996 04:12:12 +0000 Subject: [PATCH] See the huge ChangeLog entry that has the header: Thu Jul 25 19:41:31 1996 Fred Fish for details about these changes. I was going to include the complete entry in the checkin message but it was apparently so large it caused cvs to dump core. --- gdb/config/alpha/tm-alpha.h | 114 ++++++++++++++++++++++++------- gdb/config/alpha/tm-alphalinux.h | 2 +- gdb/config/arc/tm-arc.h | 2 - gdb/config/i386/xm-i386bsd.h | 3 +- gdb/config/i386/xm-i386m3.h | 5 -- gdb/config/i386/xm-i386mach.h | 5 -- gdb/config/m68k/tm-m68k.h | 2 + gdb/config/m68k/xm-hp300bsd.h | 3 +- gdb/config/m68k/xm-news.h | 4 +- gdb/config/ns32k/xm-ns32km3.h | 5 -- gdb/config/pa/xm-hppab.h | 5 -- gdb/config/pa/xm-hppah.h | 5 -- gdb/config/sparc/tm-sparc.h | 15 ++-- gdb/config/tm-sysv4.h | 1 - gdb/config/xm-lynx.h | 4 +- gdb/doc/ChangeLog | 5 ++ gdb/doc/gdbint.texinfo | 2 +- 17 files changed, 110 insertions(+), 72 deletions(-) diff --git a/gdb/config/alpha/tm-alpha.h b/gdb/config/alpha/tm-alpha.h index d00bca9a15f..7cb21a460dd 100644 --- a/gdb/config/alpha/tm-alpha.h +++ b/gdb/config/alpha/tm-alpha.h @@ -1,5 +1,6 @@ -/* Definitions to make GDB run on an Alpha box under OSF1. - Copyright 1993 Free Software Foundation, Inc. +/* Definitions to make GDB run on an Alpha box under OSF1. This is + also used by the Alpha/Netware and Alpha/Linux targets. + Copyright 1993, 1994, 1995, 1996 Free Software Foundation, Inc. This file is part of GDB. @@ -15,7 +16,10 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software -Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef TM_ALPHA_H +#define TM_ALPHA_H #include "bfd.h" #include "coff/sym.h" /* Needed for PDR below. */ @@ -77,21 +81,20 @@ alpha_saved_pc_after_call PARAMS ((struct frame_info *)); This is often the number of bytes in BREAKPOINT but not always. */ +#ifndef DECR_PC_AFTER_BREAK #define DECR_PC_AFTER_BREAK 4 +#endif /* Nonzero if instruction at PC is a return instruction. "ret $zero,($ra),1" on alpha. */ #define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 4) == 0x6bfa8001) -/* Return 1 if P points to an invalid floating point value. */ - -#define INVALID_FLOAT(p,l) 0 - -/* Say how long (all) registers are. - This is unused for the alpha, but the define is necessary. */ +/* Say how long (ordinary) registers are. This is a piece of bogosity + used in push_word and a few other places; REGISTER_RAW_SIZE is the + real way to know how big a register is. */ -#define REGISTER_TYPE long +#define REGISTER_SIZE 8 /* Number of machine registers */ @@ -120,8 +123,10 @@ alpha_saved_pc_after_call PARAMS ((struct frame_info *)); but serves to get the desired value when passed to read_register. */ #define V0_REGNUM 0 /* Function integer return value */ +#define T7_REGNUM 8 /* Return address register for OSF/1 __add* */ #define GCC_FP_REGNUM 15 /* Used by gcc as frame register */ #define A0_REGNUM 16 /* Loc of first arg during a subr call */ +#define T9_REGNUM 23 /* Return address register for OSF/1 __div* */ #define T12_REGNUM 27 /* Contains start addr of current proc */ #define SP_REGNUM 30 /* Contains address of top of stack */ #define RA_REGNUM 26 /* Contains return address value */ @@ -244,9 +249,8 @@ alpha_store_return_value PARAMS ((struct type *, char *)); /* FRAME_CHAIN takes a frame's nominal address and produces the frame's chain-pointer. */ -#define FRAME_CHAIN(thisframe) (FRAME_ADDR)alpha_frame_chain(thisframe) -extern CORE_ADDR -alpha_frame_chain PARAMS ((struct frame_info *)); +#define FRAME_CHAIN(thisframe) (CORE_ADDR) alpha_frame_chain (thisframe) +extern CORE_ADDR alpha_frame_chain PARAMS ((struct frame_info *)); /* Define other aspects of the stack frame. */ @@ -298,9 +302,15 @@ alpha_frame_saved_pc PARAMS ((struct frame_info *)); ways in the stack frame. sp is even more special: the address we return for it IS the sp for the next frame. */ -#define FRAME_FIND_SAVED_REGS(fi, frame_saved_regs) ( \ - (frame_saved_regs) = *(fi)->saved_regs, \ - (frame_saved_regs).regs[SP_REGNUM] = (fi)->frame) +extern void alpha_find_saved_regs PARAMS ((struct frame_info *)); + +#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \ + do { \ + if ((frame_info)->saved_regs == NULL) \ + alpha_find_saved_regs (frame_info); \ + (frame_saved_regs) = *(frame_info)->saved_regs; \ + (frame_saved_regs).regs[SP_REGNUM] = (frame_info)->frame; \ + } while (0) /* Things needed for making the inferior call functions. */ @@ -332,18 +342,21 @@ alpha_pop_frame PARAMS ((void)); #define CALL_DUMMY_LOCATION AT_ENTRY_POINT -/* We need a fake CALL_DUMMY definition to enable the proper +/* On the Alpha the call dummy code is never copied to user space, + stopping the user call is achieved via a bp_call_dummy breakpoint. + But we need a fake CALL_DUMMY definition to enable the proper call_function_by_hand and to avoid zero length array warnings in valops.c */ - -#define CALL_DUMMY {\ - 0x80, /* call_pal bpt */ \ -} + +#define CALL_DUMMY { 0 } /* Content doesn't matter. */ #define CALL_DUMMY_START_OFFSET (0) #define CALL_DUMMY_BREAKPOINT_OFFSET (0) +extern CORE_ADDR alpha_call_dummy_address PARAMS ((void)); +#define CALL_DUMMY_ADDRESS() alpha_call_dummy_address() + /* Insert the specified number of args and function address into a call sequence of the above form stored at DUMMYNAME. We only have to set RA_REGNUM to the dummy breakpoint address @@ -351,7 +364,7 @@ alpha_pop_frame PARAMS ((void)); #define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \ { \ - CORE_ADDR bp_address = entry_point_address (); \ + CORE_ADDR bp_address = CALL_DUMMY_ADDRESS (); \ if (bp_address == 0) \ error ("no place to put call"); \ write_register (RA_REGNUM, bp_address); \ @@ -390,6 +403,7 @@ typedef struct alpha_extra_func_info { #define EXTRA_FRAME_INFO \ int localoff; \ + int pc_reg; \ alpha_extra_func_info_t proc_desc; \ struct frame_saved_regs *saved_regs; @@ -416,6 +430,58 @@ init_extra_frame_info PARAMS ((struct frame_info *)); multiple functions with the same SP that are at different stack levels. */ #define SETUP_ARBITRARY_FRAME(argc, argv) setup_arbitrary_frame (argc, argv) -/* FIXME: Depends on equivalence between FRAME and "struct frame_info *", - and equivalence between CORE_ADDR and FRAME_ADDR. */ extern struct frame_info *setup_arbitrary_frame PARAMS ((int, CORE_ADDR *)); + +/* This is used by heuristic_proc_start. It should be shot it the head. */ +#ifndef VM_MIN_ADDRESS +#define VM_MIN_ADDRESS (CORE_ADDR)0x120000000 +#endif + +/* If PC is in a shared library trampoline code, return the PC + where the function itself actually starts. If not, return 0. */ +#define SKIP_TRAMPOLINE_CODE(pc) find_solib_trampoline_target (pc) + +/* If the current gcc for for this target does not produce correct debugging + information for float parameters, both prototyped and unprototyped, then + define this macro. This forces gdb to always assume that floats are + passed as doubles and then converted in the callee. + + For the alpha, it appears that the debug info marks the parameters as + floats regardless of whether the function is prototyped, but the actual + values are always passed in as doubles. Thus by setting this to 1, both + types of calls will work. */ + +#define COERCE_FLOAT_TO_DOUBLE 1 + +/* Return TRUE if procedure descriptor PROC is a procedure descriptor + that refers to a dynamically generated sigtramp function. + + OSF/1 doesn't use dynamic sigtramp functions, so this is always + FALSE. */ + +#define PROC_DESC_IS_DYN_SIGTRAMP(proc) (0) +#define SET_PROC_DESC_IS_DYN_SIGTRAMP(proc) + +/* If PC is inside a dynamically generated sigtramp function, return + how many bytes the program counter is beyond the start of that + function. Otherwise, return a negative value. + + OSF/1 doesn't use dynamic sigtramp functions, so this always + returns -1. */ + +#define DYNAMIC_SIGTRAMP_OFFSET(pc) (-1) + +/* Translate a signal handler frame into the address of the sigcontext + structure. */ + +#define SIGCONTEXT_ADDR(frame) \ + (read_memory_integer ((frame)->next ? frame->next->frame : frame->frame, 8)) + +/* If FRAME refers to a sigtramp frame, return the address of the next + frame. */ + +#define FRAME_PAST_SIGTRAMP_FRAME(frame, pc) \ + (alpha_osf_skip_sigtramp_frame (frame, pc)) +extern CORE_ADDR alpha_osf_skip_sigtramp_frame PARAMS ((struct frame_info *, CORE_ADDR)); + +#endif /* TM_ALPHA_H */ diff --git a/gdb/config/alpha/tm-alphalinux.h b/gdb/config/alpha/tm-alphalinux.h index 03b4991ad5e..f088d51ad09 100644 --- a/gdb/config/alpha/tm-alphalinux.h +++ b/gdb/config/alpha/tm-alphalinux.h @@ -25,7 +25,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Are we currently handling a signal ? */ -extern long alpha_linux_sigtramp_offset (); +extern long alpha_linux_sigtramp_offset PARAMS ((CORE_ADDR); #undef IN_SIGTRAMP #define IN_SIGTRAMP(pc, name) (alpha_linux_sigtramp_offset (pc) >= 0) diff --git a/gdb/config/arc/tm-arc.h b/gdb/config/arc/tm-arc.h index 5dc4abaf328..c6cfb716a4a 100644 --- a/gdb/config/arc/tm-arc.h +++ b/gdb/config/arc/tm-arc.h @@ -60,8 +60,6 @@ extern CORE_ADDR skip_prologue PARAMS ((CORE_ADDR, int)); /* We don't have a reliable single step facility. ??? We do have a cycle single step facility, but that won't work. */ #define NO_SINGLE_STEP -extern int one_stepped; -extern void single_step PARAMS ((int)); /* Given a pc value as defined by the hardware, return the real address. Remember that on the ARC blink contains that status register which diff --git a/gdb/config/i386/xm-i386bsd.h b/gdb/config/i386/xm-i386bsd.h index 8a852a29787..e5c4c89f07f 100644 --- a/gdb/config/i386/xm-i386bsd.h +++ b/gdb/config/i386/xm-i386bsd.h @@ -19,5 +19,4 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define HOST_BYTE_ORDER LITTLE_ENDIAN -#include /* for INT_MIN, to avoid "INT_MIN - redefined" warnings from defs.h */ +#include /* for INT_MIN */ diff --git a/gdb/config/i386/xm-i386m3.h b/gdb/config/i386/xm-i386m3.h index 615c80b1405..b667409f0da 100644 --- a/gdb/config/i386/xm-i386m3.h +++ b/gdb/config/i386/xm-i386m3.h @@ -19,11 +19,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define HOST_BYTE_ORDER LITTLE_ENDIAN -/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly - the same as in the system file. */ -#undef INT_MIN -#define INT_MIN 0x80000000 - /* Do implement the attach and detach commands. */ #define ATTACH_DETACH 1 diff --git a/gdb/config/i386/xm-i386mach.h b/gdb/config/i386/xm-i386mach.h index c50da67b3a3..eb47bfb06f4 100644 --- a/gdb/config/i386/xm-i386mach.h +++ b/gdb/config/i386/xm-i386mach.h @@ -19,11 +19,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define HOST_BYTE_ORDER LITTLE_ENDIAN -/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly - the same as in the system file. */ -#undef INT_MIN -#define INT_MIN 0x80000000 - /* This is the amount to subtract from u.u_ar0 to get the offset in the core file of the register values. */ diff --git a/gdb/config/m68k/tm-m68k.h b/gdb/config/m68k/tm-m68k.h index 4d284b52f4c..0c98e1db173 100644 --- a/gdb/config/m68k/tm-m68k.h +++ b/gdb/config/m68k/tm-m68k.h @@ -44,9 +44,11 @@ extern CORE_ADDR m68k_skip_prologue PARAMS ((CORE_ADDR ip)); #ifdef __STDC__ struct frame_info; +struct frame_saved_regs; #endif extern CORE_ADDR m68k_saved_pc_after_call PARAMS ((struct frame_info *)); +extern void m68k_find_saved_regs PARAMS ((struct frame_info *, struct frame_saved_regs *)); #define SAVED_PC_AFTER_CALL(frame) \ m68k_saved_pc_after_call(frame) diff --git a/gdb/config/m68k/xm-hp300bsd.h b/gdb/config/m68k/xm-hp300bsd.h index 663717e6a11..5e67792dad1 100644 --- a/gdb/config/m68k/xm-hp300bsd.h +++ b/gdb/config/m68k/xm-hp300bsd.h @@ -25,8 +25,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define HOST_BYTE_ORDER BIG_ENDIAN -/* Avoid "INT_MIN redefined" preprocessor warnings by defining them here. */ -#include +#include /* For INT_MIN */ /* Kernel is a bit tenacious about sharing text segments, disallowing bpts. */ #define ONE_PROCESS_WRITETEXT diff --git a/gdb/config/m68k/xm-news.h b/gdb/config/m68k/xm-news.h index 8a3250ce4d2..081337bcf33 100644 --- a/gdb/config/m68k/xm-news.h +++ b/gdb/config/m68k/xm-news.h @@ -19,9 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define HOST_BYTE_ORDER BIG_ENDIAN -/* A News 1800 running NEWS-OS Release 4.0.1C is said to need this. */ -/* Avoid "INT_MIN redefined" preprocessor warnings by defining them here. */ -#include +#include /* For INT_MIN */ #define HAVE_WAIT_STRUCT diff --git a/gdb/config/ns32k/xm-ns32km3.h b/gdb/config/ns32k/xm-ns32km3.h index aab10a9c81c..3d08e67c82d 100644 --- a/gdb/config/ns32k/xm-ns32km3.h +++ b/gdb/config/ns32k/xm-ns32km3.h @@ -19,10 +19,5 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define HOST_BYTE_ORDER LITTLE_ENDIAN -/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly - the same as in the system file. */ -#undef INT_MIN -#define INT_MIN 0x80000000 - /* Do implement the attach and detach commands. */ #define ATTACH_DETACH 1 diff --git a/gdb/config/pa/xm-hppab.h b/gdb/config/pa/xm-hppab.h index a7c024be8a1..463c1e08dcb 100644 --- a/gdb/config/pa/xm-hppab.h +++ b/gdb/config/pa/xm-hppab.h @@ -26,11 +26,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "pa/xm-pa.h" -/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly - the same as in the system file. */ -#undef INT_MIN -#define INT_MIN 0x80000000 - #ifndef SEEK_SET # define SEEK_SET 0 /* Set file pointer to "offset" */ # define SEEK_CUR 1 /* Set file pointer to current plus "offset" */ diff --git a/gdb/config/pa/xm-hppah.h b/gdb/config/pa/xm-hppah.h index 407bf5f1757..2cd47ddcf03 100644 --- a/gdb/config/pa/xm-hppah.h +++ b/gdb/config/pa/xm-hppah.h @@ -25,11 +25,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "pa/xm-pa.h" -/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly - the same as in the system file. */ -#undef INT_MIN -#define INT_MIN 0x80000000 - #define USG #ifndef __STDC__ diff --git a/gdb/config/sparc/tm-sparc.h b/gdb/config/sparc/tm-sparc.h index 444bb435ba2..663f6d9b1ce 100644 --- a/gdb/config/sparc/tm-sparc.h +++ b/gdb/config/sparc/tm-sparc.h @@ -336,6 +336,10 @@ sparc_extract_struct_value_address PARAMS ((char [REGISTER_BYTES])); have been stashed (the frame is of variable size, so their location is not fixed), it's convenient to record them in the frame info. */ +#ifdef __STDC__ +struct frame_info; +#endif + #define EXTRA_FRAME_INFO \ CORE_ADDR bottom; \ int flat; \ @@ -348,7 +352,7 @@ sparc_extract_struct_value_address PARAMS ((char [REGISTER_BYTES])); #define INIT_EXTRA_FRAME_INFO(fromleaf, fci) \ sparc_init_extra_frame_info (fromleaf, fci) -extern void sparc_init_extra_frame_info (); +extern void sparc_init_extra_frame_info PARAMS((int, struct frame_info *)); #define PRINT_EXTRA_FRAME_INFO(fi) \ { \ @@ -357,10 +361,6 @@ extern void sparc_init_extra_frame_info (); (fi)->pc_addr, (fi)->fp_addr); \ } -#ifdef __STDC__ -struct frame_info; -#endif - #define FRAME_CHAIN(thisframe) (sparc_frame_chain (thisframe)) extern CORE_ADDR sparc_frame_chain PARAMS ((struct frame_info *)); @@ -390,7 +390,7 @@ extern CORE_ADDR sparc_frame_chain PARAMS ((struct frame_info *)); /* Where is the PC for a specific frame */ #define FRAME_SAVED_PC(FRAME) sparc_frame_saved_pc (FRAME) -extern CORE_ADDR sparc_frame_saved_pc (); +extern CORE_ADDR sparc_frame_saved_pc PARAMS ((struct frame_info *)); /* If the argument is on the stack, it will be here. */ #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame) @@ -478,7 +478,7 @@ extern CORE_ADDR sparc_frame_saved_pc (); #define PUSH_DUMMY_FRAME sparc_push_dummy_frame () #define POP_FRAME sparc_pop_frame () -void sparc_push_dummy_frame (), sparc_pop_frame (); +void sparc_push_dummy_frame PARAMS ((void)), sparc_pop_frame PARAMS ((void)); /* This sequence of words is the instructions save %sp,-0x140,%sp @@ -598,7 +598,6 @@ arguments. */ /* Sparc has no reliable single step ptrace call */ #define NO_SINGLE_STEP 1 -extern void single_step PARAMS ((int)); /* We need more arguments in a frame specification for the "frame" or "info frame" command. */ diff --git a/gdb/config/tm-sysv4.h b/gdb/config/tm-sysv4.h index 2c085410c09..5f7da9512a3 100644 --- a/gdb/config/tm-sysv4.h +++ b/gdb/config/tm-sysv4.h @@ -27,7 +27,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ (e.g. on Irix5). */ #define IN_SOLIB_CALL_TRAMPOLINE(pc, name) in_plt_section((pc), (name)) -extern int in_plt_section PARAMS ((CORE_ADDR, char *)); /* If PC is in a shared library trampoline code, return the PC where the function itself actually starts. If not, return 0. */ diff --git a/gdb/config/xm-lynx.h b/gdb/config/xm-lynx.h index 6f19abdb810..d73e2c10619 100644 --- a/gdb/config/xm-lynx.h +++ b/gdb/config/xm-lynx.h @@ -17,6 +17,4 @@ You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -/* for INT_MIN, to avoid "INT_MIN redefined" warnings from defs.h */ - -#include +#include /* for INT_MIN */ diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog index 19c5aa3b1bd..036c89a7e70 100644 --- a/gdb/doc/ChangeLog +++ b/gdb/doc/ChangeLog @@ -1,3 +1,8 @@ +Tue Jul 23 10:06:20 1996 Fred Fish + + * gdbint.texinfo (NO_SINGLE_STEP): Document that single_step takes + a target_signal as arg type, not a pid. + Fri Jul 12 11:10:05 1996 Stu Grossman (grossman@critters.cygnus.com) * gdb.texinfo: Document `set assembly-language'. diff --git a/gdb/doc/gdbint.texinfo b/gdb/doc/gdbint.texinfo index df4e6daf8a7..ed723f4a663 100644 --- a/gdb/doc/gdbint.texinfo +++ b/gdb/doc/gdbint.texinfo @@ -2197,7 +2197,7 @@ remote-adapt.c @item NO_SINGLE_STEP Define this if the target does not support single-stepping. If this is defined, you must supply, in @code{*-tdep.c}, the function -@code{single_step}, which takes a pid as argument and returns nothing. +@code{single_step}, which takes a target_signal as argument and returns nothing. It must insert breakpoints at each possible destinations of the next instruction. See @code{sparc-tdep.c} and @code{rs6000-tdep.c} for examples. -- 2.30.2