1991-03-28 16:28:29 +00:00
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/* Extract registers from a "standard" core file, for GDB.
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Copyright (C) 1988-1991 Free Software Foundation, Inc.
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This file is part of GDB.
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1991-06-04 07:31:55 +00:00
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This program is free software; you can redistribute it and/or modify
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1991-03-28 16:28:29 +00:00
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it under the terms of the GNU General Public License as published by
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1991-06-04 07:31:55 +00:00
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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1991-03-28 16:28:29 +00:00
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1991-06-04 07:31:55 +00:00
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This program is distributed in the hope that it will be useful,
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1991-03-28 16:28:29 +00:00
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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1991-06-04 07:31:55 +00:00
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along with this program; if not, write to the Free Software
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1995-08-02 03:41:12 +00:00
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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1991-03-28 16:28:29 +00:00
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/* core.c is supposed to be the more machine-independent aspects of this;
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this file is more machine-specific. */
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1992-03-03 23:26:26 +00:00
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#include "defs.h"
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1991-11-22 20:44:50 +00:00
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#include <sys/types.h>
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#include <sys/param.h>
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1991-03-28 16:28:29 +00:00
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#include "gdbcore.h"
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* Makefile.in (c-exp.tab.o): Remove notice about shift/reduce conflicts
which no longer occur.
gcc -Wall lint:
* findvar.c (symbol_read_needs_frame), corelow.c (ignore),
inflow.c (gdb_has_a_terminal): Make sure to return a value.
* regex.h: Declare re_set_syntax.
* printcmd.c: Include valprint.h.
* infcmd.c, exec.c, maint.c, core.c: Include language.h.
* maint.c: Include expression.h.
* infrun.c, fork-child.c, corelow.c, inflow.c: Include thread.h.
* inftarg.c: Include command.h.
* coredep.c: Include value.h.
* c-exp.y, m2-exp.y, ch-exp.y: Include bfd.h, symfile.h and objfiles.h.
* ch-typeprint.c: Include typeprint.h.
* ch-valprint.c: Include c-lang.h.
* nlmread.c: Include buildsym.h.
* environ.c: Include gdbcore.h. Only include defs.h once.
(set_in_environ): Cast const char * to char * when passing to
set_gnutarget.
Remove unused variables:
* printcmd.c (printf_command): args_to_vprintf.
* coffread.c (coff_symfile_init): strsection.
Move variables to within the #ifdefs where they are used:
* symtab.c (gdb_mangle_name): opname.
* inftarg.c (child_attach): pid and exec_file.
* inftarg.c (child_detach): siggnal.
* objfiles.c (allocate_objfile): mapto, md, and fd.
* objfiles.c (free_objfile): mmfd.
* infrun.c (wait_for_inferior): Include BPSTAT_WHAT_LAST in switch.
* infrun.c (wait_for_inferior): Remove unused same_pid label.
* inferior.h: Declare set_sigint_trap and clear_sigint_trap.
* parser-defs.h: Declare write_exp_elt_block.
* stabsread.h: Declare elfstab_offset_sections and
coffstab_build_psymtabs.
1993-10-21 20:41:50 +00:00
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#include "value.h" /* For supply_register. */
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1994-07-25 18:55:22 +00:00
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#include "inferior.h" /* For ARCH_NUM_REGS. */
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1991-03-28 16:28:29 +00:00
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1991-10-17 05:57:51 +00:00
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/* These are needed on various systems to expand REGISTER_U_ADDR. */
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1991-10-25 23:10:12 +00:00
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#ifndef USG
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1991-03-28 16:28:29 +00:00
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#include <sys/dir.h>
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#include <sys/file.h>
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* configure.in: Check for working mmap, ansi headers, string.h,
strings.h, and memory.h.
* configure: Regenerated.
* gdb_stat.h: New file, "portable" <sys/stat.h>.
* gdb_string.h: New file, "portable" <string.h>.
* altos-xdep.c, arm-tdep.c, arm-xdep.c, convex-tdep.c,
convex-xdep.c, coredep.c, cxux-nat.c, dbxread.c, exec.c,
gould-xdep.c, hppa-tdep.c, i386aix-nat.c, i386b-nat.c,
i386mach-nat.c, i386v-nat.c, infptrace.c, m88k-nat.c, main.c,
mdebugread.c, objfiles.c, os9kread.c, procfs.c, pyr-xdep.c,
rs6000-nat.c, source.c, standalone.c, stuff.c, sun386-nat.c,
symfile.c, symm-nat.c, symm-tdep.c, symtab.c, top.c, ultra3-nat.c,
ultra3-xdep.c, umax-xdep.c, xcoffread.c: Include "gdb_stat.h"
instead of <sys/stat.h>.
* alpha-tdep.c, breakpoint.c, buildsym.c, c-typeprint.c,
ch-typeprint.c, coffread.c, command.c, core-sol2.c, core-svr4.c,
core.c, corelow.c, cp-valprint.c, dbxread.c, dcache.c, demangle.c,
dpx2-nat.c, dstread.c, dwarfread.c, elfread.c, environ.c, eval.c,
exec.c, f-lang.c, f-typeprint.c, f-valprint.c, findvar.c,
fork-child.c, gdbtypes.c, hpread.c, i386-tdep.c, infcmd.c,
inflow.c, infptrace.c, infrun.c, irix5-nat.c, language.c,
m2-typeprint.c, main.c, mdebugread.c, minsyms.c, mipsread.c,
monitor.c, nlmread.c, objfiles.c, os9kread.c, osfsolib.c, parse.c,
printcmd.c, procfs.c, regex.c, remote-adapt.c, remote-arc.c,
remote-array.c, remote-bug.c, remote-e7000.c, remote-eb.c,
remote-es.c, remote-hms.c, remote-mm.c, remote-os9k.c,
remote-pa.c, remote-sim.c, remote-st.c, remote-udi.c,
remote-utils.c, remote-vx.c, remote-vx29k.c, remote-vx68.c,
remote-vx960.c, remote-vxmips.c, remote-vxsparc.c, remote.c,
solib.c, somread.c, source.c, stabsread.c, stack.c, symfile.c,
symmisc.c, symtab.c, target.c, top.c, typeprint.c, utils.c,
valarith.c, valops.c, valprint.c, values.c, xcoffread.c: Include
"gdb_string.h" instead of <string.h>.
* gdbtk.c: Likewise.
* config/xm-sysv4.h, i386/xm-ptx.h, m68k/xm-sun3os4.h,
sparc/xm-sun4os4.h (HAVE_MMAP): Removed.
* config/xm-lynx.h, config/i386/xm-ptx.h,
config/m68k/nm-apollo68b.h, config/m68k/xm-hp300hpux.h,
config/mips/xm-irix3.h, config/mips/xm-mips.h,
config/mips/xm-news-mips.h, config/mips/xm-riscos.h,
config/pa/hppah.h, config/rs6000/xm-rs6000.h,
config/sparc/xm-sun4os4.h, config/sparc/xm-sun4sol2.h,
config/vax/xm-vaxbsd.h, config/vax/xm-vaxult.h,
config/vax/xm-vaxult2.h (MEM_FNS_DECLARED): Removed.
* config/mips/xm-irix3.h, config/mips/xm-mips.h,
config/pa/xm-hppah.h (memcpy, memset): Removed declarations.
1995-08-01 20:14:27 +00:00
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#include "gdb_stat.h"
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1991-03-28 16:28:29 +00:00
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#include <sys/user.h>
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1993-03-02 01:56:22 +00:00
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#ifndef NO_PTRACE_H
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# ifdef PTRACE_IN_WRONG_PLACE
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# include <ptrace.h>
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# else /* !PTRACE_IN_WRONG_PLACE */
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# include <sys/ptrace.h>
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# endif /* !PTRACE_IN_WRONG_PLACE */
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#endif /* NO_PTRACE_H */
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1991-09-17 08:10:16 +00:00
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#endif
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1991-03-28 16:28:29 +00:00
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1994-07-17 00:00:36 +00:00
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#ifndef CORE_REGISTER_ADDR
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#define CORE_REGISTER_ADDR(regno, regptr) register_addr(regno, regptr)
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#endif /* CORE_REGISTER_ADDR */
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1993-07-22 19:49:44 +00:00
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#ifdef NEED_SYS_CORE_H
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#include <sys/core.h>
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#endif
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1991-03-28 16:28:29 +00:00
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/* Extract the register values out of the core file and store
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1991-10-16 19:42:05 +00:00
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them where `read_register' will find them.
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CORE_REG_SECT points to the register values themselves, read into memory.
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CORE_REG_SIZE is the size of that area.
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WHICH says which set of registers we are handling (0 = int, 2 = float
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on machines where they are discontiguous).
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REG_ADDR is the offset from u.u_ar0 to the register values relative to
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core_reg_sect. This is used with old-fashioned core files to
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locate the registers in a large upage-plus-stack ".reg" section.
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Original upage address X is at location core_reg_sect+x+reg_addr.
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*/
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1991-03-28 16:28:29 +00:00
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void
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1991-10-16 19:42:05 +00:00
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fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
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1991-03-28 16:28:29 +00:00
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char *core_reg_sect;
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unsigned core_reg_size;
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1991-10-16 19:42:05 +00:00
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int which;
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unsigned reg_addr;
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1991-03-28 16:28:29 +00:00
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{
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register int regno;
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register unsigned int addr;
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int bad_reg = -1;
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1991-10-16 19:42:05 +00:00
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register reg_ptr = -reg_addr; /* Original u.u_ar0 is -reg_addr. */
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1994-07-17 00:00:36 +00:00
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int numregs = ARCH_NUM_REGS;
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1991-10-16 19:42:05 +00:00
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/* If u.u_ar0 was an absolute address in the core file, relativize it now,
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so we can use it as an offset into core_reg_sect. When we're done,
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"register 0" will be at core_reg_sect+reg_ptr, and we can use
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1994-07-17 00:00:36 +00:00
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CORE_REGISTER_ADDR to offset to the other registers. If this is a modern
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1991-10-16 19:42:05 +00:00
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core file without a upage, reg_ptr will be zero and this is all a big
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NOP. */
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if (reg_ptr > core_reg_size)
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reg_ptr -= KERNEL_U_ADDR;
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1991-03-28 16:28:29 +00:00
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1994-07-17 00:00:36 +00:00
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for (regno = 0; regno < numregs; regno++)
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1991-03-28 16:28:29 +00:00
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{
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1994-07-17 00:00:36 +00:00
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addr = CORE_REGISTER_ADDR (regno, reg_ptr);
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1991-03-28 16:28:29 +00:00
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if (addr >= core_reg_size) {
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if (bad_reg < 0)
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bad_reg = regno;
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} else {
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supply_register (regno, core_reg_sect + addr);
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}
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}
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1991-12-05 12:20:18 +00:00
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if (bad_reg >= 0)
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1991-03-28 16:28:29 +00:00
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{
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error ("Register %s not found in core file.", reg_names[bad_reg]);
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}
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}
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#ifdef REGISTER_U_ADDR
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/* Return the address in the core dump or inferior of register REGNO.
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BLOCKEND is the address of the end of the user structure. */
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unsigned int
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register_addr (regno, blockend)
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int regno;
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int blockend;
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{
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int addr;
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1994-07-17 00:00:36 +00:00
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if (regno < 0 || regno >= ARCH_NUM_REGS)
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1991-03-28 16:28:29 +00:00
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error ("Invalid register number %d.", regno);
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REGISTER_U_ADDR (addr, blockend, regno);
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return addr;
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}
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#endif /* REGISTER_U_ADDR */
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