* amd64obsd-tdep.c: Include "regset.h" and "i387-tdep.h". Fix
comments. (amd64obsd_supply_regset, amd64obsd_regset_from_core_section): New functions. (amd64obsd_init_abi): Reorder initializations. Use amd64obsd_r_reg_offset to initialize the general-purpose register set details. Set regset_from_core_section. (_initialize_amd64obsd_tdep): Rename from _initialize_amd64obsd_ndep. Add OS ABI handler for core dumps. * Makefile.in (amd64obsd-tdep.o): Update dependencies. * config/i386/obsd64.mt (TDEPFILES): Add i386-tdep.o.
This commit is contained in:
Mark Kettenis
parent
2031c21ae7
commit
30b344b1d9
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@ -1,5 +1,17 @@
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2004-02-20 Mark Kettenis <kettenis@gnu.org>
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* amd64obsd-tdep.c: Include "regset.h" and "i387-tdep.h". Fix
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comments.
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(amd64obsd_supply_regset, amd64obsd_regset_from_core_section): New
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functions.
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(amd64obsd_init_abi): Reorder initializations. Use
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amd64obsd_r_reg_offset to initialize the general-purpose register
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set details. Set regset_from_core_section.
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(_initialize_amd64obsd_tdep): Rename from
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_initialize_amd64obsd_ndep. Add OS ABI handler for core dumps.
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* Makefile.in (amd64obsd-tdep.o): Update dependencies.
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* config/i386/obsd64.mt (TDEPFILES): Add i386-tdep.o.
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* NEWS (New native configurations): Mention OpenBSD/alpha.
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* configure.tgt: Add alpha*-*-openbsd*.
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* configure.host: Add alpha*-*-openbsd*.
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@ -1535,7 +1535,8 @@ amd64nbsd-tdep.o: amd64nbsd-tdep.c $(defs_h) $(arch_utils_h) $(frame_h) \
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amd64obsd-nat.o: amd64nbsd-nat.c $(defs_h) $(gdb_assert_h) $(x86_64_tdep_h) \
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$(amd64_nat_h)
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amd64obsd-tdep.o: amd64nbsd-tdep.c $(defs_h) $(arch_utils_h) $(frame_h) \
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$(gdbcore_h) $(osabi_h) $(gdb_assert_h) $(x86_64_tdep_h)
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$(gdbcore_h) $(osabi_h) $(regset_h) $(target_h) $(gdb_assert_h) \
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$(gdb_string_h) $(x86_64_tdep_h) $(i387_tdep_h)
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annotate.o: annotate.c $(defs_h) $(annotate_h) $(value_h) $(target_h) \
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$(gdbtypes_h) $(breakpoint_h)
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arch-utils.o: arch-utils.c $(defs_h) $(arch_utils_h) $(buildsym_h) \
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@ -23,12 +23,54 @@
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#include "frame.h"
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#include "gdbcore.h"
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#include "osabi.h"
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#include "regset.h"
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#include "target.h"
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#include "gdb_assert.h"
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#include "gdb_string.h"
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#include "x86-64-tdep.h"
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#include "i387-tdep.h"
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/* Support for core dumps. */
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static void
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amd64obsd_supply_regset (const struct regset *regset,
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struct regcache *regcache, int regnum,
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const void *regs, size_t len)
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{
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const struct gdbarch_tdep *tdep = regset->descr;
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gdb_assert (len >= tdep->sizeof_gregset + I387_SIZEOF_FXSAVE);
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i386_supply_gregset (regset, regcache, regnum, regs, tdep->sizeof_gregset);
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x86_64_supply_fxsave (regcache, regnum, (char *)regs + tdep->sizeof_gregset);
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}
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static const struct regset *
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amd64obsd_regset_from_core_section (struct gdbarch *gdbarch,
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const char *sect_name, size_t sect_size)
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{
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struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
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/* OpenBSD core dumps don't use seperate register sets for the
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general-purpose and floating-point registers. */
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if (strcmp (sect_name, ".reg") == 0
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&& sect_size >= tdep->sizeof_gregset + I387_SIZEOF_FXSAVE)
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{
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if (tdep->gregset == NULL)
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{
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tdep->gregset = XMALLOC (struct regset);
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tdep->gregset->descr = tdep;
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tdep->gregset->supply_regset = amd64obsd_supply_regset;
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}
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return tdep->gregset;
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}
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return NULL;
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}
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/* Support for signal handlers. */
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@ -77,7 +119,7 @@ amd64obsd_sigcontext_addr (struct frame_info *next_frame)
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/* Mapping between the general-purpose registers in `struct reg'
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format and GDB's register cache layout. */
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/* From <machine/reg.h>. Used for ptrace(2), but not for core dumps. */
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/* From <machine/reg.h>. */
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int amd64obsd_r_reg_offset[] =
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{
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14 * 8, /* %rax */
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@ -106,7 +148,7 @@ int amd64obsd_r_reg_offset[] =
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23 * 8 /* %gs */
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};
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/* From <machine/signal.h>. Also used for core dumps. */
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/* From <machine/signal.h>. */
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static int amd64obsd_sc_reg_offset[] =
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{
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14 * 8, /* %rax */
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@ -140,13 +182,16 @@ amd64obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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{
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struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
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/* Initialize general-purpose register set details first. */
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tdep->gregset_reg_offset = amd64obsd_sc_reg_offset;
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tdep->gregset_num_regs = ARRAY_SIZE (amd64obsd_sc_reg_offset);
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tdep->sizeof_gregset = 26 * 8;
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x86_64_init_abi (info, gdbarch);
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/* Initialize general-purpose register set details. */
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tdep->gregset_reg_offset = amd64obsd_r_reg_offset;
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tdep->gregset_num_regs = ARRAY_SIZE (amd64obsd_r_reg_offset);
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tdep->sizeof_gregset = 24 * 8;
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set_gdbarch_regset_from_core_section (gdbarch,
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amd64obsd_regset_from_core_section);
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tdep->jb_pc_offset = 7 * 8;
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set_gdbarch_pc_in_sigtramp (gdbarch, amd64obsd_pc_in_sigtramp);
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@ -160,11 +205,15 @@ amd64obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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void _initialize_amd64obsd_tdep (void);
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void
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_initialize_amd64obsd_ndep (void)
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_initialize_amd64obsd_tdep (void)
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{
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/* The OpenBSD/amd64 native dependent code makes this assumption. */
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gdb_assert (ARRAY_SIZE (amd64obsd_r_reg_offset) == X86_64_NUM_GREGS);
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gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
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GDB_OSABI_OPENBSD_ELF, amd64obsd_init_abi);
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/* OpenBSD uses traditional (a.out) NetBSD-style core dumps. */
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gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
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GDB_OSABI_NETBSD_AOUT, amd64obsd_init_abi);
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}
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@ -1,2 +1,3 @@
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# Target: OpenBSD/amd64
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TDEPFILES= x86-64-tdep.o amd64obsd-tdep.o i386-tdep.o i387-tdep.o
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TDEPFILES= x86-64-tdep.o amd64obsd-tdep.o \
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i386-tdep.o i387-tdep.o i386bsd-tdep.o
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