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author | Stu Grossman <grossman@cygnus> | 1993-04-20 06:01:56 +0000 |
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committer | Stu Grossman <grossman@cygnus> | 1993-04-20 06:01:56 +0000 |
commit | 9583b29548ca9634a751b3e06007c8bacbbdd96f (patch) | |
tree | 58448bfbd03e52f89a5f509efa4bac0929c9d031 /gdb/core-svr4.c | |
parent | 0f213cc206222b983e736e59248eb641bba937ba (diff) | |
download | gdb-9583b29548ca9634a751b3e06007c8bacbbdd96f.zip gdb-9583b29548ca9634a751b3e06007c8bacbbdd96f.tar.gz gdb-9583b29548ca9634a751b3e06007c8bacbbdd96f.tar.bz2 |
* irix4-nat.c (fetch_core_registers): Special version of this for
Irix 4.x, which stores regs a bit differently from other /proc
based systems.
* procfs.c, core-svr4.c: Move fetch_core_registers from procfs.c
to new file core-svr4.c.
* config/i386/i386sol2.mh, config/i386/i386v4.mh, config/m68k/amix.mh,
config/i386/ncr3000.mh, config/sparc/sun4sol2.mh: Add core-svr4.o
to NATDEPFILES.
* config/mips/irix4.mh: Add corelow.o to NATDEPFILES.
Diffstat (limited to 'gdb/core-svr4.c')
-rw-r--r-- | gdb/core-svr4.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/gdb/core-svr4.c b/gdb/core-svr4.c new file mode 100644 index 0000000..e0743fd --- /dev/null +++ b/gdb/core-svr4.c @@ -0,0 +1,109 @@ +/* Machine independent support for SVR4 core files for GDB. + Copyright 1993 Free Software Foundation, Inc. + +This file is part of GDB. + +This program 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 of the License, or +(at your option) any later version. + +This program 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 this program; if not, write to the Free Software +Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + + +/* N O T E S + +This version of fetch_core_registers() is used by most systems that +implement /proc. For these systems, the general registers are laid out +the same way in both the core file and the gregset_p structure. The +current exception to this is Irix-4.*, where the gregset_p structure is +split up into two pieces in the core file. + +The general register and floating point register sets are manipulated by +separate ioctl's. This file makes the assumption that if FP0_REGNUM is +defined, then support for the floating point register set is desired, +regardless of whether or not the actual target has floating point hardware. + + */ + +#include "defs.h" + +#include <time.h> +#include <sys/procfs.h> +#include <fcntl.h> +#include <errno.h> +#include <string.h> + +#include "inferior.h" +#include "target.h" +#include "command.h" +#include "gdbcore.h" + +/* + +GLOBAL FUNCTION + + fetch_core_registers -- fetch current registers from core file data + +SYNOPSIS + + void fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, + int which, unsigned in reg_addr) + +DESCRIPTION + + Read the values of either the general register set (WHICH equals 0) + or the floating point register set (WHICH equals 2) from the core + file data (pointed to by CORE_REG_SECT), and update gdb's idea of + their current values. The CORE_REG_SIZE parameter is ignored. + +NOTES + + Use the indicated sizes to validate the gregset and fpregset + structures. +*/ + +void +fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr) + char *core_reg_sect; + unsigned core_reg_size; + int which; + unsigned int reg_addr; /* Unused in this version */ +{ + gregset_t gregset; + fpregset_t fpregset; + + if (which == 0) + { + if (core_reg_size != sizeof (gregset)) + { + warning ("wrong size gregset struct in core file"); + } + else + { + memcpy ((char *) &gregset, core_reg_sect, sizeof (gregset)); + supply_gregset (&gregset); + } + } + else if (which == 2) + { + if (core_reg_size != sizeof (fpregset)) + { + warning ("wrong size fpregset struct in core file"); + } + else + { + memcpy ((char *) &fpregset, core_reg_sect, sizeof (fpregset)); +#if defined (FP0_REGNUM) + supply_fpregset (&fpregset); +#endif + } + } +} |