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gdb: Remove support for obsolete OSABIs and a.out 

gdb/ChangeLog:
2016-12-09  Pedro Alves  <palves@redhat.com>

	* Makefile.in (ALL_TARGET_OBS): Remove vax-obsd-tdep.o.
	* alpha-fbsd-tdep.c (_initialize_alphafbsd_tdep): Adjust.
	* alpha-nbsd-tdep.c: Move comment to _initialize_alphanbsd_tdep.
	(alphanbsd_core_osabi_sniffer): Delete.
	(_initialize_alphanbsd_tdep): No longer handle a.out.
	* alpha-obsd-tdep.c (_initialize_alphaobsd_tdep): Adjust.
	* amd64-fbsd-tdep.c (_initialize_amd64fbsd_tdep): Adjust.
	* amd64-nbsd-tdep.c (_initialize_amd64nbsd_tdep): Adjust.
	* amd64-obsd-tdep.c (amd64obsd_supply_regset)
	(amd64obsd_combined_regset)
	(amd64obsd_iterate_over_regset_sections, amd64obsd_core_init_abi):
	Delete.
	(_initialize_amd64obsd_tdep): Don't handle a.out.
	* arm-nbsd-nat.c (struct md_core, fetch_core_registers)
	(arm_netbsd_core_fns): Delete.
	(_initialize_arm_netbsd_nat): Don't register arm_netbsd_core_fns.
	* arm-nbsd-tdep.c (arm_netbsd_aout_init_abi)
	(arm_netbsd_aout_osabi_sniffer): Delete.
	(_initialize_arm_netbsd_tdep): Don't handle a.out.
	* arm-obsd-tdep.c (armobsd_core_osabi_sniffer): Delete.
	(_initialize_armobsd_tdep): Don't handle a.out.
	* arm-tdep.c (arm_gdbarch_init): Remove bfd_target_aout_flavour
	case.
	* breakpoint.c (disable_breakpoints_in_unloaded_shlib): Remove
	SunOS a.out handling.
	* configure.tgt (vax-*-netbsd* | vax-*-knetbsd*-gnu): Remove
	vax-obsd-tdep.o from gdb_target_objs.
	(vax-*-openbsd*): Likewise.
	(*-*-freebsd*): Adjust default gdb_osabi.
	(*-*-openbsd*): Likewise.
	* dbxread.c (block_address_function_relative): Delete.
	(dbx_symfile_read): Remove reference to
	block_address_function_relative.
	(dbx_symfile_read): Don't call read_dbx_dynamic_symtab.
	(read_dbx_dynamic_symtab): Delete.
	(process_one_symbol): Remove references to
	block_address_function_relative.
	* defs.h (GDB_OSABI_FREEBSD_AOUT, GDB_OSABI_NETBSD_AOUT): Remove.
	(GDB_OSABI_FREEBSD_ELF): Rename to ...
	(GDB_OSABI_FREEBSD): ... this.
	(GDB_OSABI_NETBSD_ELF): Rename to ...
	(GDB_OSABI_NETBSD): ... this.
	(GDB_OSABI_OPENBSD_ELF): Rename to ...
	(GDB_OSABI_OPENBSD): ... this.
	(GDB_OSABI_HPUX_ELF, GDB_OSABI_HPUX_SOM): Remove.
	* fbsd-tdep.c: Adjust comment.
	* hppa-nbsd-tdep.c (_initialize_hppanbsd_tdep): Adjust.
	* hppa-obsd-tdep.c (GDB_OSABI_NETBSD_CORE): Delete.
	(hppaobsd_core_osabi_sniffer): Delete.
	(_initialize_hppabsd_tdep): Don't handle a.out.
	* hppa-tdep.c (hppa_stub_frame_unwind_cache): Don't handle
	GDB_OSABI_HPUX_SOM.
	(hppa_gdbarch_init): Likewise.
	* i386-bsd-tdep.c (i386bsd_aout_osabi_sniffer)
	(i386bsd_core_osabi_sniffer, _initialize_i386bsd_tdep): Delete.
	* i386-fbsd-tdep.c (i386fbsdaout_init_abi): Delete.  Merge bits
	with ...
	(i386fbsd_init_abi): ... this.
	(_initialize_i386fbsd_tdep): Don't handle a.out.
	* i386-nbsd-tdep.c (_initialize_i386nbsd_tdep): Adjust.
	* i386-obsd-tdep.c (i386obsd_aout_supply_regset)
	(i386obsd_aout_gregset)
	(i386obsd_aout_iterate_over_regset_sections): Delete.
	(i386obsd_init_abi): Merge with i386obsd_elf_init_abi.
	(i386obsd_aout_init_abi): Delete.
	(_initialize_i386obsd_tdep): Don't handle a.out.
	* m68k-bsd-tdep.c (m68kobsd_sigtramp_cache_init)
	(m68kobsd_sigtramp): Delete.
	(m68kbsd_init_abi): Merge with ...
	(m68kbsd_elf_init_abi): ... this, and delete it.
	(m68kbsd_aout_init_abi): Delete.
	(m68kbsd_aout_osabi_sniffer, m68kbsd_core_osabi_sniffer): Delete.
	(_initialize_m68kbsd_tdep): Don't handle a.out.
	* mips-nbsd-tdep.c (_initialize_mipsnbsd_tdep): Adjust.
	* mips64-obsd-tdep.c (_initialize_mips64obsd_tdep): Adjust.
	* osabi.c (gdb_osabi_names): Remove "a.out" entries.  Drop "ELF"
	suffixes.  Remove "HP-UX" entries.
	(generic_elf_osabi_sniff_abi_tag_sections): Adjust.
	(generic_elf_osabi_sniffer): No longer handle GDB_OSABI_HPUX_ELF.
	Adjust.
	(_initialize_ppcfbsd_tdep): Adjust.
	* ppc-nbsd-tdep.c (_initialize_ppcnbsd_tdep): Adjust.
	* ppc-obsd-tdep.c (GDB_OSABI_NETBSD_CORE)
	(ppcobsd_core_osabi_sniffer): Delete.
	(_initialize_ppcobsd_tdep): Don't handle a.out.
	* rs6000-tdep.c (rs6000_gdbarch_init): Adjust.
	* sh-nbsd-tdep.c (GDB_OSABI_NETBSD_CORE)
	(shnbsd_core_osabi_sniffer): Delete.
	(_initialize_shnbsd_tdep): Don't handle a.out.
	* solib.c (clear_solib): Don't handle SunOS/a.out.
	* sparc-nbsd-tdep.c (sparc32nbsd_init_abi): Make extern.
	(sparc32nbsd_aout_init_abi): Delete.
	(sparc32nbsd_elf_init_abi): Merged into sparc32nbsd_init_abi.
	(sparcnbsd_aout_osabi_sniffer): Delete.
	(GDB_OSABI_NETBSD_CORE, sparcnbsd_core_osabi_sniffer): Delete.
	(_initialize_sparcnbsd_tdep): No longer handle a.out.
	* sparc-obsd-tdep.c (sparc32obsd_init_abi)
	(_initialize_sparc32obsd_tdep): Adjust.
	* sparc-tdep.h (sparc32nbsd_elf_init_abi): Rename to ...
	(sparc32nbsd_init_abi): ... this.
	* sparc64-fbsd-tdep.c (_initialize_sparc64fbsd_tdep): Adjust.
	* sparc64-nbsd-tdep.c (_initialize_sparc64nbsd_tdep): Adjust.
	* sparc64-obsd-tdep.c (_initialize_sparc64obsd_tdep): Adjust.
	* stabsread.c: Update comment.
	* symmisc.c (print_objfile_statistics): Don't mention "a.out" in
	output.
	* vax-nbsd-tdep.c (_initialize_vaxnbsd_tdep): Adjust.
	* vax-obsd-tdep.c: Delete file.
This commit is contained in:
Pedro Alves 2016-12-09 16:08:49 +00:00
parent f94f411b83
commit 1736a7bd96
44 changed files with 193 additions and 979 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

111
gdb/ChangeLog
View File

@ -1,3 +1,114 @@
2016-12-09 Pedro Alves <palves@redhat.com>
* Makefile.in (ALL_TARGET_OBS): Remove vax-obsd-tdep.o.
* alpha-fbsd-tdep.c (_initialize_alphafbsd_tdep): Adjust.
* alpha-nbsd-tdep.c: Move comment to _initialize_alphanbsd_tdep.
(alphanbsd_core_osabi_sniffer): Delete.
(_initialize_alphanbsd_tdep): No longer handle a.out.
* alpha-obsd-tdep.c (_initialize_alphaobsd_tdep): Adjust.
* amd64-fbsd-tdep.c (_initialize_amd64fbsd_tdep): Adjust.
* amd64-nbsd-tdep.c (_initialize_amd64nbsd_tdep): Adjust.
* amd64-obsd-tdep.c (amd64obsd_supply_regset)
(amd64obsd_combined_regset)
(amd64obsd_iterate_over_regset_sections, amd64obsd_core_init_abi):
Delete.
(_initialize_amd64obsd_tdep): Don't handle a.out.
* arm-nbsd-nat.c (struct md_core, fetch_core_registers)
(arm_netbsd_core_fns): Delete.
(_initialize_arm_netbsd_nat): Don't register arm_netbsd_core_fns.
* arm-nbsd-tdep.c (arm_netbsd_aout_init_abi)
(arm_netbsd_aout_osabi_sniffer): Delete.
(_initialize_arm_netbsd_tdep): Don't handle a.out.
* arm-obsd-tdep.c (armobsd_core_osabi_sniffer): Delete.
(_initialize_armobsd_tdep): Don't handle a.out.
* arm-tdep.c (arm_gdbarch_init): Remove bfd_target_aout_flavour
case.
* breakpoint.c (disable_breakpoints_in_unloaded_shlib): Remove
SunOS a.out handling.
* configure.tgt (vax-*-netbsd* | vax-*-knetbsd*-gnu): Remove
vax-obsd-tdep.o from gdb_target_objs.
(vax-*-openbsd*): Likewise.
(*-*-freebsd*): Adjust default gdb_osabi.
(*-*-openbsd*): Likewise.
* dbxread.c (block_address_function_relative): Delete.
(dbx_symfile_read): Remove reference to
block_address_function_relative.
(dbx_symfile_read): Don't call read_dbx_dynamic_symtab.
(read_dbx_dynamic_symtab): Delete.
(process_one_symbol): Remove references to
block_address_function_relative.
* defs.h (GDB_OSABI_FREEBSD_AOUT, GDB_OSABI_NETBSD_AOUT): Remove.
(GDB_OSABI_FREEBSD_ELF): Rename to ...
(GDB_OSABI_FREEBSD): ... this.
(GDB_OSABI_NETBSD_ELF): Rename to ...
(GDB_OSABI_NETBSD): ... this.
(GDB_OSABI_OPENBSD_ELF): Rename to ...
(GDB_OSABI_OPENBSD): ... this.
(GDB_OSABI_HPUX_ELF, GDB_OSABI_HPUX_SOM): Remove.
* fbsd-tdep.c: Adjust comment.
* hppa-nbsd-tdep.c (_initialize_hppanbsd_tdep): Adjust.
* hppa-obsd-tdep.c (GDB_OSABI_NETBSD_CORE): Delete.
(hppaobsd_core_osabi_sniffer): Delete.
(_initialize_hppabsd_tdep): Don't handle a.out.
* hppa-tdep.c (hppa_stub_frame_unwind_cache): Don't handle
GDB_OSABI_HPUX_SOM.
(hppa_gdbarch_init): Likewise.
* i386-bsd-tdep.c (i386bsd_aout_osabi_sniffer)
(i386bsd_core_osabi_sniffer, _initialize_i386bsd_tdep): Delete.
* i386-fbsd-tdep.c (i386fbsdaout_init_abi): Delete. Merge bits
with ...
(i386fbsd_init_abi): ... this.
(_initialize_i386fbsd_tdep): Don't handle a.out.
* i386-nbsd-tdep.c (_initialize_i386nbsd_tdep): Adjust.
* i386-obsd-tdep.c (i386obsd_aout_supply_regset)
(i386obsd_aout_gregset)
(i386obsd_aout_iterate_over_regset_sections): Delete.
(i386obsd_init_abi): Merge with i386obsd_elf_init_abi.
(i386obsd_aout_init_abi): Delete.
(_initialize_i386obsd_tdep): Don't handle a.out.
* m68k-bsd-tdep.c (m68kobsd_sigtramp_cache_init)
(m68kobsd_sigtramp): Delete.
(m68kbsd_init_abi): Merge with ...
(m68kbsd_elf_init_abi): ... this, and delete it.
(m68kbsd_aout_init_abi): Delete.
(m68kbsd_aout_osabi_sniffer, m68kbsd_core_osabi_sniffer): Delete.
(_initialize_m68kbsd_tdep): Don't handle a.out.
* mips-nbsd-tdep.c (_initialize_mipsnbsd_tdep): Adjust.
* mips64-obsd-tdep.c (_initialize_mips64obsd_tdep): Adjust.
* osabi.c (gdb_osabi_names): Remove "a.out" entries. Drop "ELF"
suffixes. Remove "HP-UX" entries.
(generic_elf_osabi_sniff_abi_tag_sections): Adjust.
(generic_elf_osabi_sniffer): No longer handle GDB_OSABI_HPUX_ELF.
Adjust.
(_initialize_ppcfbsd_tdep): Adjust.
* ppc-nbsd-tdep.c (_initialize_ppcnbsd_tdep): Adjust.
* ppc-obsd-tdep.c (GDB_OSABI_NETBSD_CORE)
(ppcobsd_core_osabi_sniffer): Delete.
(_initialize_ppcobsd_tdep): Don't handle a.out.
* rs6000-tdep.c (rs6000_gdbarch_init): Adjust.
* sh-nbsd-tdep.c (GDB_OSABI_NETBSD_CORE)
(shnbsd_core_osabi_sniffer): Delete.
(_initialize_shnbsd_tdep): Don't handle a.out.
* solib.c (clear_solib): Don't handle SunOS/a.out.
* sparc-nbsd-tdep.c (sparc32nbsd_init_abi): Make extern.
(sparc32nbsd_aout_init_abi): Delete.
(sparc32nbsd_elf_init_abi): Merged into sparc32nbsd_init_abi.
(sparcnbsd_aout_osabi_sniffer): Delete.
(GDB_OSABI_NETBSD_CORE, sparcnbsd_core_osabi_sniffer): Delete.
(_initialize_sparcnbsd_tdep): No longer handle a.out.
* sparc-obsd-tdep.c (sparc32obsd_init_abi)
(_initialize_sparc32obsd_tdep): Adjust.
* sparc-tdep.h (sparc32nbsd_elf_init_abi): Rename to ...
(sparc32nbsd_init_abi): ... this.
* sparc64-fbsd-tdep.c (_initialize_sparc64fbsd_tdep): Adjust.
* sparc64-nbsd-tdep.c (_initialize_sparc64nbsd_tdep): Adjust.
* sparc64-obsd-tdep.c (_initialize_sparc64obsd_tdep): Adjust.
* stabsread.c: Update comment.
* symmisc.c (print_objfile_statistics): Don't mention "a.out" in
output.
* vax-nbsd-tdep.c (_initialize_vaxnbsd_tdep): Adjust.
* vax-obsd-tdep.c: Delete file.
2016-12-09 Yao Qi <yao.qi@linaro.org>
PR tdep/20954

1
gdb/Makefile.in
View File

@ -873,7 +873,6 @@ ALL_TARGET_OBS = \
tilegx-tdep.o \
v850-tdep.o \
vax-nbsd-tdep.o \
vax-obsd-tdep.o \
vax-tdep.o \
windows-tdep.o \
xcoffread.o \

2
gdb/alpha-fbsd-tdep.c
View File

@ -127,6 +127,6 @@ void _initialize_alphafbsd_tdep (void);
void
_initialize_alphafbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_alpha, 0, GDB_OSABI_FREEBSD_ELF,
gdbarch_register_osabi (bfd_arch_alpha, 0, GDB_OSABI_FREEBSD,
alphafbsd_init_abi);
}

22
gdb/alpha-nbsd-tdep.c
View File

@ -35,9 +35,6 @@
/* Core file support. */
/* Even though NetBSD/alpha used ELF since day one, it used the
traditional a.out-style core dump format before NetBSD 1.6. */
/* Sizeof `struct reg' in <machine/reg.h>. */
#define ALPHANBSD_SIZEOF_GREGS (32 * 8)
@ -279,26 +276,15 @@ alphanbsd_init_abi (struct gdbarch_info info,
}
static enum gdb_osabi
alphanbsd_core_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
return GDB_OSABI_NETBSD_ELF;
return GDB_OSABI_UNKNOWN;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_alphanbsd_tdep (void);
void
_initialize_alphanbsd_tdep (void)
{
/* BFD doesn't set a flavour for NetBSD style a.out core files. */
gdbarch_register_osabi_sniffer (bfd_arch_alpha, bfd_target_unknown_flavour,
alphanbsd_core_osabi_sniffer);
gdbarch_register_osabi (bfd_arch_alpha, 0, GDB_OSABI_NETBSD_ELF,
/* Even though NetBSD/alpha used ELF since day one, it used the
traditional a.out-style core dump format before NetBSD 1.6, but
we don't support those. */
gdbarch_register_osabi (bfd_arch_alpha, 0, GDB_OSABI_NETBSD,
alphanbsd_init_abi);
}

2
gdb/alpha-obsd-tdep.c
View File

@ -132,6 +132,6 @@ void _initialize_alphaobsd_tdep (void);
void
_initialize_alphaobsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_alpha, 0, GDB_OSABI_OPENBSD_ELF,
gdbarch_register_osabi (bfd_arch_alpha, 0, GDB_OSABI_OPENBSD,
alphaobsd_init_abi);
}

2
gdb/amd64-fbsd-tdep.c
View File

@ -315,5 +315,5 @@ void
_initialize_amd64fbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
GDB_OSABI_FREEBSD_ELF, amd64fbsd_init_abi);
GDB_OSABI_FREEBSD, amd64fbsd_init_abi);
}

2
gdb/amd64-nbsd-tdep.c
View File

@ -129,5 +129,5 @@ _initialize_amd64nbsd_tdep (void)
gdb_assert (ARRAY_SIZE (amd64nbsd_r_reg_offset) == AMD64_NUM_GREGS);
gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
GDB_OSABI_NETBSD_ELF, amd64nbsd_init_abi);
GDB_OSABI_NETBSD, amd64nbsd_init_abi);
}

55
gdb/amd64-obsd-tdep.c
View File

@ -35,44 +35,6 @@
#include "solib-svr4.h"
#include "bsd-uthread.h"
/* Support for core dumps. */
static void
amd64obsd_supply_regset (const struct regset *regset,
struct regcache *regcache, int regnum,
const void *regs, size_t len)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
const struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
gdb_assert (len >= tdep->sizeof_gregset + I387_SIZEOF_FXSAVE);
i386_supply_gregset (regset, regcache, regnum, regs, tdep->sizeof_gregset);
amd64_supply_fxsave (regcache, regnum,
((const gdb_byte *)regs) + tdep->sizeof_gregset);
}
static const struct regset amd64obsd_combined_regset =
{
NULL, amd64obsd_supply_regset, NULL
};
static void
amd64obsd_iterate_over_regset_sections (struct gdbarch *gdbarch,
iterate_over_regset_sections_cb *cb,
void *cb_data,
const struct regcache *regcache)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
/* OpenBSD core dumps don't use seperate register sets for the
general-purpose and floating-point registers. */
cb (".reg", tdep->sizeof_gregset + I387_SIZEOF_FXSAVE,
&amd64obsd_combined_regset, NULL, cb_data);
}
/* Support for signal handlers. */
/* Default page size. */
@ -483,17 +445,6 @@ amd64obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
/* Unwind kernel trap frames correctly. */
frame_unwind_prepend_unwinder (gdbarch, &amd64obsd_trapframe_unwind);
}
/* Traditional (a.out) NetBSD-style core dumps. */
static void
amd64obsd_core_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
amd64obsd_init_abi (info, gdbarch);
set_gdbarch_iterate_over_regset_sections
(gdbarch, amd64obsd_iterate_over_regset_sections);
}
/* Provide a prototype to silence -Wmissing-prototypes. */
@ -506,9 +457,5 @@ _initialize_amd64obsd_tdep (void)
gdb_assert (ARRAY_SIZE (amd64obsd_r_reg_offset) == AMD64_NUM_GREGS);
gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
GDB_OSABI_OPENBSD_ELF, amd64obsd_init_abi);
/* OpenBSD uses traditional (a.out) NetBSD-style core dumps. */
gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
GDB_OSABI_NETBSD_AOUT, amd64obsd_core_init_abi);
GDB_OSABI_OPENBSD, amd64obsd_init_abi);
}

29
gdb/arm-nbsd-nat.c
View File

@ -409,25 +409,6 @@ armnbsd_store_registers (struct target_ops *ops,
}
}
struct md_core
{
struct reg intreg;
struct fpreg freg;
};
static void
fetch_core_registers (struct regcache *regcache,
char *core_reg_sect, unsigned core_reg_size,
int which, CORE_ADDR ignore)
{
struct md_core *core_reg = (struct md_core *) core_reg_sect;
int regno;
CORE_ADDR r_pc;
arm_supply_gregset (regcache, &core_reg->intreg);
arm_supply_fparegset (regcache, &core_reg->freg);
}
static void
fetch_elfcore_registers (struct regcache *regcache,
char *core_reg_sect, unsigned core_reg_size,
@ -468,15 +449,6 @@ fetch_elfcore_registers (struct regcache *regcache,
}
}
static struct core_fns arm_netbsd_core_fns =
{
bfd_target_unknown_flavour, /* core_flovour. */
default_check_format, /* check_format. */
default_core_sniffer, /* core_sniffer. */
fetch_core_registers, /* core_read_registers. */
NULL
};
static struct core_fns arm_netbsd_elfcore_fns =
{
bfd_target_elf_flavour, /* core_flovour. */
@ -496,6 +468,5 @@ _initialize_arm_netbsd_nat (void)
t->to_store_registers = armnbsd_store_registers;
add_target (t);
deprecated_add_core_fns (&arm_netbsd_core_fns);
deprecated_add_core_fns (&arm_netbsd_elfcore_fns);
}

27
gdb/arm-nbsd-tdep.c
View File

@ -70,17 +70,6 @@ arm_netbsd_init_abi_common (struct gdbarch_info info,
set_gdbarch_software_single_step (gdbarch, arm_software_single_step);
}
static void
arm_netbsd_aout_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
arm_netbsd_init_abi_common (info, gdbarch);
if (tdep->fp_model == ARM_FLOAT_AUTO)
tdep->fp_model = ARM_FLOAT_SOFT_FPA;
}
static void
arm_netbsd_elf_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch)
@ -96,26 +85,12 @@ arm_netbsd_elf_init_abi (struct gdbarch_info info,
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
}
static enum gdb_osabi
arm_netbsd_aout_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "a.out-arm-netbsd") == 0)
return GDB_OSABI_NETBSD_AOUT;
return GDB_OSABI_UNKNOWN;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
extern initialize_file_ftype _initialize_arm_netbsd_tdep;
void
_initialize_arm_netbsd_tdep (void)
{
gdbarch_register_osabi_sniffer (bfd_arch_arm, bfd_target_aout_flavour,
arm_netbsd_aout_osabi_sniffer);
gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_NETBSD_AOUT,
arm_netbsd_aout_init_abi);
gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_NETBSD_ELF,
gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_NETBSD,
arm_netbsd_elf_init_abi);
}

15
gdb/arm-obsd-tdep.c
View File

@ -116,25 +116,12 @@ armobsd_init_abi (struct gdbarch_info info,
}
static enum gdb_osabi
armobsd_core_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
return GDB_OSABI_OPENBSD_ELF;
return GDB_OSABI_UNKNOWN;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
extern initialize_file_ftype _initialize_armobsd_tdep;
void
_initialize_armobsd_tdep (void)
{
/* BFD doesn't set a flavour for NetBSD style a.out core files. */
gdbarch_register_osabi_sniffer (bfd_arch_arm, bfd_target_unknown_flavour,
armobsd_core_osabi_sniffer);
gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_OPENBSD_ELF,
gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_OPENBSD,
armobsd_init_abi);
}

5
gdb/arm-tdep.c
View File

@ -8990,11 +8990,6 @@ arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
switch (bfd_get_flavour (info.abfd))
{
case bfd_target_aout_flavour:
/* Assume it's an old APCS-style ABI. */
arm_abi = ARM_ABI_APCS;
break;
case bfd_target_coff_flavour:
/* Assume it's an old APCS-style ABI. */
/* XXX WinCE? */

8
gdb/breakpoint.c
View File

@ -7957,14 +7957,6 @@ disable_breakpoints_in_unloaded_shlib (struct so_list *solib)
struct bp_location *loc, **locp_tmp;
int disabled_shlib_breaks = 0;
/* SunOS a.out shared libraries are always mapped, so do not
disable breakpoints; they will only be reported as unloaded
through clear_solib when GDB discards its shared library
list. See clear_solib for more information. */
if (exec_bfd != NULL
&& bfd_get_flavour (exec_bfd) == bfd_target_aout_flavour)
return;
ALL_BP_LOCATIONS (loc, locp_tmp)
{
/* ALL_BP_LOCATIONS bp_location has LOC->OWNER always non-NULL. */

8
gdb/configure.tgt
View File

@ -643,11 +643,11 @@ v850*-*-elf | v850*-*-rtems*)
vax-*-netbsd* | vax-*-knetbsd*-gnu)
# Target: NetBSD/vax
gdb_target_obs="vax-tdep.o vax-nbsd-tdep.o solib-svr4.o"
gdb_target_obs="vax-tdep.o solib-svr4.o"
;;
vax-*-openbsd*)
# Target: OpenBSD/vax
gdb_target_obs="vax-tdep.o vax-obsd-tdep.o"
gdb_target_obs="vax-tdep.o"
;;
vax-*-*)
# Target: VAX
@ -720,12 +720,12 @@ esac
case "${targ}" in
*-*-freebsd* | *-*-kfreebsd*-gnu)
gdb_osabi=GDB_OSABI_FREEBSD_ELF ;;
gdb_osabi=GDB_OSABI_FREEBSD ;;
*-*-linux* | *-*-uclinux*)
gdb_osabi=GDB_OSABI_LINUX ;;
*-*-nto*) gdb_osabi=GDB_OSABI_QNXNTO ;;
m68*-*-openbsd* | m88*-*-openbsd* | vax-*-openbsd*) ;;
*-*-openbsd*) gdb_osabi=GDB_OSABI_OPENBSD_ELF ;;
*-*-openbsd*) gdb_osabi=GDB_OSABI_OPENBSD ;;
*-*-solaris*) gdb_osabi=GDB_OSABI_SOLARIS ;;
*-*-*-gnu*) ;; # prevent non-GNU kernels to match the Hurd rule below
*-*-gnu*) gdb_osabi=GDB_OSABI_HURD ;;

201
gdb/dbxread.c
View File

@ -144,10 +144,6 @@ static unsigned int next_file_string_table_offset;
static int symfile_relocatable = 0;
/* If this is nonzero, N_LBRAC, N_RBRAC, and N_SLINE entries are
relative to the function start address. */
static int block_address_function_relative = 0;
/* The lowest text address we have yet encountered. This is needed
because in an a.out file, there is no header field which tells us
@ -262,9 +258,6 @@ static void dbx_read_symtab (struct partial_symtab *self,
static void dbx_psymtab_to_symtab_1 (struct objfile *, struct partial_symtab *);
static void read_dbx_dynamic_symtab (minimal_symbol_reader &reader,
struct objfile *objfile);
static void read_dbx_symtab (minimal_symbol_reader &, struct objfile *);
static void free_bincl_list (struct objfile *);
@ -534,18 +527,6 @@ dbx_symfile_read (struct objfile *objfile, symfile_add_flags symfile_flags)
symfile_relocatable = bfd_get_file_flags (sym_bfd) & HAS_RELOC;
/* This is true for Solaris (and all other systems which put stabs
in sections, hopefully, since it would be silly to do things
differently from Solaris), and false for SunOS4 and other a.out
file formats. */
block_address_function_relative =
((startswith (bfd_get_target (sym_bfd), "elf"))
|| (startswith (bfd_get_target (sym_bfd), "som"))
|| (startswith (bfd_get_target (sym_bfd), "coff"))
|| (startswith (bfd_get_target (sym_bfd), "pe"))
|| (startswith (bfd_get_target (sym_bfd), "epoc-pe"))
|| (startswith (bfd_get_target (sym_bfd), "nlm")));
val = bfd_seek (sym_bfd, DBX_SYMTAB_OFFSET (objfile), SEEK_SET);
if (val < 0)
perror_with_name (objfile_name (objfile));
@ -566,10 +547,6 @@ dbx_symfile_read (struct objfile *objfile, symfile_add_flags symfile_flags)
read_dbx_symtab (reader, objfile);
/* Add the dynamic symbols. */
read_dbx_dynamic_symtab (reader, objfile);
/* Install any minimal symbols that have been collected as the current
minimal symbols for this objfile. */
@ -976,144 +953,6 @@ set_namestring (struct objfile *objfile, const struct internal_nlist *nlist)
return namestring;
}
/* Scan a SunOs dynamic symbol table for symbols of interest and
add them to the minimal symbol table. */
static void
read_dbx_dynamic_symtab (minimal_symbol_reader &reader,
struct objfile *objfile)
{
bfd *abfd = objfile->obfd;
struct cleanup *back_to;
int counter;
long dynsym_size;
long dynsym_count;
asymbol **dynsyms;
asymbol **symptr;
arelent **relptr;
long dynrel_size;
long dynrel_count;
arelent **dynrels;
CORE_ADDR sym_value;
const char *name;
/* Check that the symbol file has dynamic symbols that we know about.
bfd_arch_unknown can happen if we are reading a sun3 symbol file
on a sun4 host (and vice versa) and bfd is not configured
--with-target=all. This would trigger an assertion in bfd/sunos.c,
so we ignore the dynamic symbols in this case. */
if (bfd_get_flavour (abfd) != bfd_target_aout_flavour
|| (bfd_get_file_flags (abfd) & DYNAMIC) == 0
|| bfd_get_arch (abfd) == bfd_arch_unknown)
return;
dynsym_size = bfd_get_dynamic_symtab_upper_bound (abfd);
if (dynsym_size < 0)
return;
dynsyms = (asymbol **) xmalloc (dynsym_size);
back_to = make_cleanup (xfree, dynsyms);
dynsym_count = bfd_canonicalize_dynamic_symtab (abfd, dynsyms);
if (dynsym_count < 0)
{
do_cleanups (back_to);
return;
}
/* Enter dynamic symbols into the minimal symbol table
if this is a stripped executable. */
if (bfd_get_symcount (abfd) <= 0)
{
symptr = dynsyms;
for (counter = 0; counter < dynsym_count; counter++, symptr++)
{
asymbol *sym = *symptr;
asection *sec;
int type;
sec = bfd_get_section (sym);
/* BFD symbols are section relative. */
sym_value = sym->value + sec->vma;
if (bfd_get_section_flags (abfd, sec) & SEC_CODE)
{
type = N_TEXT;
}
else if (bfd_get_section_flags (abfd, sec) & SEC_DATA)
{
type = N_DATA;
}
else if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
{
type = N_BSS;
}
else
continue;
if (sym->flags & BSF_GLOBAL)
type |= N_EXT;
record_minimal_symbol (reader, bfd_asymbol_name (sym), sym_value,
type, objfile);
}
}
/* Symbols from shared libraries have a dynamic relocation entry
that points to the associated slot in the procedure linkage table.
We make a mininal symbol table entry with type mst_solib_trampoline
at the address in the procedure linkage table. */
dynrel_size = bfd_get_dynamic_reloc_upper_bound (abfd);
if (dynrel_size < 0)
{
do_cleanups (back_to);
return;
}
dynrels = (arelent **) xmalloc (dynrel_size);
make_cleanup (xfree, dynrels);
dynrel_count = bfd_canonicalize_dynamic_reloc (abfd, dynrels, dynsyms);
if (dynrel_count < 0)
{
do_cleanups (back_to);
return;
}
for (counter = 0, relptr = dynrels;
counter < dynrel_count;
counter++, relptr++)
{
arelent *rel = *relptr;
CORE_ADDR address = rel->address;
switch (bfd_get_arch (abfd))
{
case bfd_arch_sparc:
if (rel->howto->type != RELOC_JMP_SLOT)
continue;
break;
case bfd_arch_m68k:
/* `16' is the type BFD produces for a jump table relocation. */
if (rel->howto->type != 16)
continue;
/* Adjust address in the jump table to point to
the start of the bsr instruction. */
address -= 2;
break;
default:
continue;
}
name = bfd_asymbol_name (*rel->sym_ptr_ptr);
reader.record (name, address, mst_solib_trampoline);
}
do_cleanups (back_to);
}
static CORE_ADDR
find_stab_function_addr (char *namestring, const char *filename,
struct objfile *objfile)
@ -2688,14 +2527,6 @@ process_one_symbol (int type, int desc, CORE_ADDR valu, char *name,
source file. Used to detect the SunPRO solaris compiler. */
static int n_opt_found;
if (!block_address_function_relative)
{
/* N_LBRAC, N_RBRAC and N_SLINE entries are not relative to the
function start address, so just use the text offset. */
function_start_offset =
ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile));
}
/* Something is wrong if we see real data before seeing a source
file name. */
@ -2751,8 +2582,7 @@ process_one_symbol (int type, int desc, CORE_ADDR valu, char *name,
/* May be switching to an assembler file which may not be using
block relative stabs, so reset the offset. */
if (block_address_function_relative)
function_start_offset = 0;
function_start_offset = 0;
break;
}
@ -2774,13 +2604,7 @@ process_one_symbol (int type, int desc, CORE_ADDR valu, char *name,
if (n_opt_found && desc == 1)
break;
if (block_address_function_relative)
/* Relocate for Sun ELF acc fn-relative syms. */
valu += function_start_offset;
else
/* On most machines, the block addresses are relative to the
N_SO, the linker did not relocate them (sigh). */
valu += last_source_start_addr;
valu += function_start_offset;
push_context (desc, valu);
break;
@ -2793,13 +2617,7 @@ process_one_symbol (int type, int desc, CORE_ADDR valu, char *name,
if (n_opt_found && desc == 1)
break;
if (block_address_function_relative)
/* Relocate for Sun ELF acc fn-relative syms. */
valu += function_start_offset;
else
/* On most machines, the block addresses are relative to the
N_SO, the linker did not relocate them (sigh). */
valu += last_source_start_addr;
valu += function_start_offset;
if (context_stack_depth <= 0)
{
@ -2894,8 +2712,7 @@ process_one_symbol (int type, int desc, CORE_ADDR valu, char *name,
if (*name == '\000')
break;
if (block_address_function_relative)
function_start_offset = 0;
function_start_offset = 0;
start_stabs ();
start_symtab (objfile, name, NULL, valu);
@ -3113,14 +2930,8 @@ process_one_symbol (int type, int desc, CORE_ADDR valu, char *name,
valu = minsym_valu;
}
if (block_address_function_relative)
/* For Solaris 2 compilers, the block addresses and
N_SLINE's are relative to the start of the
function. On normal systems, and when using GCC on
Solaris 2, these addresses are just absolute, or
relative to the N_SO, depending on
BLOCK_ADDRESS_ABSOLUTE. */
function_start_offset = valu;
/* These addresses are absolute. */
function_start_offset = valu;
within_function = 1;

10
gdb/defs.h
View File

@ -574,15 +574,11 @@ enum gdb_osabi
GDB_OSABI_HURD,
GDB_OSABI_SOLARIS,
GDB_OSABI_LINUX,
GDB_OSABI_FREEBSD_AOUT,
GDB_OSABI_FREEBSD_ELF,
GDB_OSABI_NETBSD_AOUT,
GDB_OSABI_NETBSD_ELF,
GDB_OSABI_OPENBSD_ELF,
GDB_OSABI_FREEBSD,
GDB_OSABI_NETBSD,
GDB_OSABI_OPENBSD,
GDB_OSABI_WINCE,
GDB_OSABI_GO32,
GDB_OSABI_HPUX_ELF,
GDB_OSABI_HPUX_SOM,
GDB_OSABI_QNXNTO,
GDB_OSABI_CYGWIN,
GDB_OSABI_AIX,

2
gdb/fbsd-tdep.c
View File

@ -334,7 +334,7 @@ fbsd_get_syscall_number (struct gdbarch *gdbarch,
internal_error (__FILE__, __LINE__, _("fbsd_get_sycall_number called"));
}
/* To be called from GDB_OSABI_FREEBSD_ELF handlers. */
/* To be called from GDB_OSABI_FREEBSD handlers. */
void
fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)

2
gdb/hppa-nbsd-tdep.c
View File

@ -213,6 +213,6 @@ extern initialize_file_ftype _initialize_hppanbsd_tdep;
void
_initialize_hppanbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_hppa, 0, GDB_OSABI_NETBSD_ELF,
gdbarch_register_osabi (bfd_arch_hppa, 0, GDB_OSABI_NETBSD,
hppanbsd_init_abi);
}

20
gdb/hppa-obsd-tdep.c
View File

@ -166,30 +166,12 @@ hppaobsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
}
/* OpenBSD uses uses the traditional NetBSD core file format, even for
ports that use ELF. */
#define GDB_OSABI_NETBSD_CORE GDB_OSABI_OPENBSD_ELF
static enum gdb_osabi
hppaobsd_core_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
return GDB_OSABI_NETBSD_CORE;
return GDB_OSABI_UNKNOWN;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_hppabsd_tdep (void);
void
_initialize_hppabsd_tdep (void)
{
/* BFD doesn't set a flavour for NetBSD style a.out core files. */
gdbarch_register_osabi_sniffer (bfd_arch_hppa, bfd_target_unknown_flavour,
hppaobsd_core_osabi_sniffer);
gdbarch_register_osabi (bfd_arch_hppa, 0, GDB_OSABI_OPENBSD_ELF,
gdbarch_register_osabi (bfd_arch_hppa, 0, GDB_OSABI_OPENBSD,
hppaobsd_init_abi);
}

23
gdb/hppa-tdep.c
View File

@ -2454,21 +2454,6 @@ hppa_stub_frame_unwind_cache (struct frame_info *this_frame,
info->base = get_frame_register_unsigned (this_frame, HPPA_SP_REGNUM);
if (gdbarch_osabi (gdbarch) == GDB_OSABI_HPUX_SOM)
{
/* HPUX uses export stubs in function calls; the export stub clobbers
the return value of the caller, and, later restores it from the
stack. */
u = find_unwind_entry (get_frame_pc (this_frame));
if (u && u->stub_unwind.stub_type == EXPORT)
{
info->saved_regs[HPPA_PCOQ_HEAD_REGNUM].addr = info->base - 24;
return info;
}
}
/* By default we assume that stubs do not change the rp. */
info->saved_regs[HPPA_PCOQ_HEAD_REGNUM].realreg = HPPA_RP_REGNUM;
@ -3062,14 +3047,6 @@ hppa_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
{
struct gdbarch_tdep *tdep;
struct gdbarch *gdbarch;
/* Try to determine the ABI of the object we are loading. */
if (info.abfd != NULL && info.osabi == GDB_OSABI_UNKNOWN)
{
/* If it's a SOM file, assume it's HP/UX SOM. */
if (bfd_get_flavour (info.abfd) == bfd_target_som_flavour)
info.osabi = GDB_OSABI_HPUX_SOM;
}
/* find a candidate among the list of pre-declared architectures. */
arches = gdbarch_list_lookup_by_info (arches, &info);

35
gdb/i386-bsd-tdep.c
View File

@ -86,38 +86,3 @@ i386bsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
}
static enum gdb_osabi
i386bsd_aout_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "a.out-i386-netbsd") == 0)
return GDB_OSABI_NETBSD_AOUT;
if (strcmp (bfd_get_target (abfd), "a.out-i386-freebsd") == 0)
return GDB_OSABI_FREEBSD_AOUT;
return GDB_OSABI_UNKNOWN;
}
static enum gdb_osabi
i386bsd_core_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
return GDB_OSABI_NETBSD_AOUT;
return GDB_OSABI_UNKNOWN;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_i386bsd_tdep (void);
void
_initialize_i386bsd_tdep (void)
{
gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_aout_flavour,
i386bsd_aout_osabi_sniffer);
/* BFD doesn't set a flavour for NetBSD style a.out core files. */
gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_unknown_flavour,
i386bsd_core_osabi_sniffer);
}

16
gdb/i386-fbsd-tdep.c
View File

@ -373,7 +373,7 @@ i386fbsd_collect_uthread (const struct regcache *regcache,
}
static void
i386fbsdaout_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
i386fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
@ -403,18 +403,10 @@ i386fbsdaout_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
/* FreeBSD provides a user-level threads implementation. */
bsd_uthread_set_supply_uthread (gdbarch, i386fbsd_supply_uthread);
bsd_uthread_set_collect_uthread (gdbarch, i386fbsd_collect_uthread);
}
static void
i386fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
/* It's almost identical to FreeBSD a.out. */
i386fbsdaout_init_abi (info, gdbarch);
/* Except that it uses ELF. */
i386_elf_init_abi (info, gdbarch);
/* FreeBSD ELF uses SVR4-style shared libraries. */
/* FreeBSD uses SVR4-style shared libraries. */
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
}
@ -491,8 +483,6 @@ void _initialize_i386fbsd_tdep (void);
void
_initialize_i386fbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_FREEBSD_AOUT,
i386fbsdaout_init_abi);
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_FREEBSD_ELF,
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_FREEBSD,
i386fbsd4_init_abi);
}

2
gdb/i386-nbsd-tdep.c
View File

@ -322,6 +322,6 @@ extern initialize_file_ftype _initialize_i386nbsd_tdep;
void
_initialize_i386nbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_NETBSD_ELF,
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_NETBSD,
i386nbsdelf_init_abi);
}

71
gdb/i386-obsd-tdep.c
View File

@ -134,40 +134,6 @@ static int i386obsd_r_reg_offset[] =
15 * 4 /* %gs */
};
static void
i386obsd_aout_supply_regset (const struct regset *regset,
struct regcache *regcache, int regnum,
const void *regs, size_t len)
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
const struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
const gdb_byte *gregs = (const gdb_byte *) regs;
gdb_assert (len >= tdep->sizeof_gregset + I387_SIZEOF_FSAVE);
i386_supply_gregset (regset, regcache, regnum, regs, tdep->sizeof_gregset);
i387_supply_fsave (regcache, regnum, gregs + tdep->sizeof_gregset);
}
static const struct regset i386obsd_aout_gregset =
{
NULL, i386obsd_aout_supply_regset, NULL
};
static void
i386obsd_aout_iterate_over_regset_sections (struct gdbarch *gdbarch,
iterate_over_regset_sections_cb *cb,
void *cb_data,
const struct regcache *regcache)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
/* OpenBSD a.out core dumps don't use seperate register sets for the
general-purpose and floating-point registers. */
cb (".reg", tdep->sizeof_gregset + I387_SIZEOF_FSAVE,
&i386obsd_aout_gregset, NULL, cb_data);
}
/* Sigtramp routine location for OpenBSD 3.1 and earlier releases. */
@ -445,6 +411,7 @@ i386obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
/* Obviously OpenBSD is BSD-based. */
i386bsd_init_abi (info, gdbarch);
obsd_init_abi (info, gdbarch);
i386_elf_init_abi (info, gdbarch);
/* OpenBSD has a different `struct reg'. */
tdep->gregset_reg_offset = i386obsd_r_reg_offset;
@ -470,30 +437,6 @@ i386obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
/* Unwind kernel trap frames correctly. */
frame_unwind_prepend_unwinder (gdbarch, &i386obsd_trapframe_unwind);
}
/* OpenBSD a.out. */
static void
i386obsd_aout_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
i386obsd_init_abi (info, gdbarch);
/* OpenBSD a.out has a single register set. */
set_gdbarch_iterate_over_regset_sections
(gdbarch, i386obsd_aout_iterate_over_regset_sections);
}
/* OpenBSD ELF. */
static void
i386obsd_elf_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
/* It's still OpenBSD. */
i386obsd_init_abi (info, gdbarch);
/* But ELF-based. */
i386_elf_init_abi (info, gdbarch);
/* OpenBSD ELF uses SVR4-style shared libraries. */
set_solib_svr4_fetch_link_map_offsets
@ -507,14 +450,6 @@ void _initialize_i386obsd_tdep (void);
void
_initialize_i386obsd_tdep (void)
{
/* FIXME: kettenis/20021020: Since OpenBSD/i386 binaries are
indistingushable from NetBSD/i386 a.out binaries, building a GDB
that should support both these targets will probably not work as
expected. */
#define GDB_OSABI_OPENBSD_AOUT GDB_OSABI_NETBSD_AOUT
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_OPENBSD_AOUT,
i386obsd_aout_init_abi);
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_OPENBSD_ELF,
i386obsd_elf_init_abi);
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_OPENBSD,
i386obsd_init_abi);
}

111
gdb/m68k-bsd-tdep.c
View File

@ -129,60 +129,6 @@ m68kbsd_iterate_over_regset_sections (struct gdbarch *gdbarch,
}
/* Signal trampolines. */
static void
m68kobsd_sigtramp_cache_init (const struct tramp_frame *self,
struct frame_info *this_frame,
struct trad_frame_cache *this_cache,
CORE_ADDR func)
{
CORE_ADDR addr, base, pc;
int regnum;
base = get_frame_register_unsigned (this_frame, M68K_SP_REGNUM);
/* The 'addql #4,%sp' instruction at offset 8 adjusts the stack
pointer. Adjust the frame base accordingly. */
pc = get_frame_register_unsigned (this_frame, M68K_PC_REGNUM);
if ((pc - func) > 8)
base -= 4;
/* Get frame pointer, stack pointer, program counter and processor
state from `struct sigcontext'. */
addr = get_frame_memory_unsigned (this_frame, base + 8, 4);
trad_frame_set_reg_addr (this_cache, M68K_FP_REGNUM, addr + 8);
trad_frame_set_reg_addr (this_cache, M68K_SP_REGNUM, addr + 12);
trad_frame_set_reg_addr (this_cache, M68K_PC_REGNUM, addr + 20);
trad_frame_set_reg_addr (this_cache, M68K_PS_REGNUM, addr + 24);
/* The sc_ap member of `struct sigcontext' points to additional
hardware state. Here we find the missing registers. */
addr = get_frame_memory_unsigned (this_frame, addr + 16, 4) + 4;
for (regnum = M68K_D0_REGNUM; regnum < M68K_FP_REGNUM; regnum++, addr += 4)
trad_frame_set_reg_addr (this_cache, regnum, addr);
/* Construct the frame ID using the function start. */
trad_frame_set_id (this_cache, frame_id_build (base, func));
}
static const struct tramp_frame m68kobsd_sigtramp = {
SIGTRAMP_FRAME,
2,
{
{ 0x206f, -1 }, { 0x000c, -1}, /* moveal %sp@(12),%a0 */
{ 0x4e90, -1 }, /* jsr %a0@ */
{ 0x588f, -1 }, /* addql #4,%sp */
{ 0x4e41, -1 }, /* trap #1 */
{ 0x2f40, -1 }, { 0x0004, -1 }, /* moveal %d0,%sp@(4) */
{ 0x7001, -1 }, /* moveq #SYS_exit,%d0 */
{ 0x4e40, -1 }, /* trap #0 */
{ TRAMP_SENTINEL_INSN, -1 }
},
m68kobsd_sigtramp_cache_init
};
static void
m68kbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
@ -195,30 +141,6 @@ m68kbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
set_gdbarch_iterate_over_regset_sections
(gdbarch, m68kbsd_iterate_over_regset_sections);
}
/* OpenBSD and NetBSD a.out. */
static void
m68kbsd_aout_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
m68kbsd_init_abi (info, gdbarch);
tdep->struct_return = reg_struct_return;
tramp_frame_prepend_unwinder (gdbarch, &m68kobsd_sigtramp);
}
/* NetBSD ELF. */
static void
m68kbsd_elf_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
m68kbsd_init_abi (info, gdbarch);
/* NetBSD ELF uses the SVR4 ABI. */
m68k_svr4_init_abi (info, gdbarch);
@ -230,41 +152,12 @@ m68kbsd_elf_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
}
static enum gdb_osabi
m68kbsd_aout_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "a.out-m68k-netbsd") == 0
|| strcmp (bfd_get_target (abfd), "a.out-m68k4k-netbsd") == 0)
return GDB_OSABI_NETBSD_AOUT;
return GDB_OSABI_UNKNOWN;
}
static enum gdb_osabi
m68kbsd_core_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
return GDB_OSABI_NETBSD_AOUT;
return GDB_OSABI_UNKNOWN;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_m68kbsd_tdep (void);
void
_initialize_m68kbsd_tdep (void)
{
gdbarch_register_osabi_sniffer (bfd_arch_m68k, bfd_target_aout_flavour,
m68kbsd_aout_osabi_sniffer);
/* BFD doesn't set a flavour for NetBSD style a.out core files. */
gdbarch_register_osabi_sniffer (bfd_arch_m68k, bfd_target_unknown_flavour,
m68kbsd_core_osabi_sniffer);
gdbarch_register_osabi (bfd_arch_m68k, 0, GDB_OSABI_NETBSD_AOUT,
m68kbsd_aout_init_abi);
gdbarch_register_osabi (bfd_arch_m68k, 0, GDB_OSABI_NETBSD_ELF,
m68kbsd_elf_init_abi);
gdbarch_register_osabi (bfd_arch_m68k, 0, GDB_OSABI_NETBSD,
m68kbsd_init_abi);
}

2
gdb/mips-nbsd-tdep.c
View File

@ -380,6 +380,6 @@ extern initialize_file_ftype _initialize_mipsnbsd_tdep;
void
_initialize_mipsnbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_mips, 0, GDB_OSABI_NETBSD_ELF,
gdbarch_register_osabi (bfd_arch_mips, 0, GDB_OSABI_NETBSD,
mipsnbsd_init_abi);
}

2
gdb/mips64-obsd-tdep.c
View File

@ -165,6 +165,6 @@ void _initialize_mips64obsd_tdep (void);
void
_initialize_mips64obsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_mips, 0, GDB_OSABI_OPENBSD_ELF,
gdbarch_register_osabi (bfd_arch_mips, 0, GDB_OSABI_OPENBSD,
mips64obsd_init_abi);
}

44
gdb/osabi.c
View File

@ -64,15 +64,11 @@ static const struct osabi_names gdb_osabi_names[] =
{ "GNU/Hurd", NULL },
{ "Solaris", NULL },
{ "GNU/Linux", "linux(-gnu)?" },
{ "FreeBSD/a.out", NULL },
{ "FreeBSD/ELF", NULL },
{ "NetBSD/a.out", NULL },
{ "NetBSD/ELF", NULL },
{ "OpenBSD/ELF", NULL },
{ "FreeBSD", NULL },
{ "NetBSD", NULL },
{ "OpenBSD", NULL },
{ "WindowsCE", NULL },
{ "DJGPP", NULL },
{ "HP-UX/ELF", NULL },
{ "HP-UX/SOM", NULL },
{ "QNX-Neutrino", NULL },
{ "Cygwin", NULL },
{ "AIX", NULL },
@ -482,11 +478,11 @@ generic_elf_osabi_sniff_abi_tag_sections (bfd *abfd, asection *sect, void *obj)
break;
case GNU_ABI_TAG_FREEBSD:
*osabi = GDB_OSABI_FREEBSD_ELF;
*osabi = GDB_OSABI_FREEBSD;
break;
case GNU_ABI_TAG_NETBSD:
*osabi = GDB_OSABI_NETBSD_ELF;
*osabi = GDB_OSABI_NETBSD;
break;
default:
@ -501,7 +497,7 @@ generic_elf_osabi_sniff_abi_tag_sections (bfd *abfd, asection *sect, void *obj)
NT_FREEBSD_ABI_TAG))
{
/* There is no need to check the version yet. */
*osabi = GDB_OSABI_FREEBSD_ELF;
*osabi = GDB_OSABI_FREEBSD;
return;
}
@ -513,7 +509,7 @@ generic_elf_osabi_sniff_abi_tag_sections (bfd *abfd, asection *sect, void *obj)
&& check_note (abfd, sect, note, &sectsize, "NetBSD", 4, NT_NETBSD_IDENT))
{
/* There is no need to check the version yet. */
*osabi = GDB_OSABI_NETBSD_ELF;
*osabi = GDB_OSABI_NETBSD;
return;
}
@ -523,14 +519,14 @@ generic_elf_osabi_sniff_abi_tag_sections (bfd *abfd, asection *sect, void *obj)
NT_OPENBSD_IDENT))
{
/* There is no need to check the version yet. */
*osabi = GDB_OSABI_OPENBSD_ELF;
*osabi = GDB_OSABI_OPENBSD;
return;
}
/* .note.netbsdcore.procinfo notes, used by NetBSD. */
if (strcmp (name, ".note.netbsdcore.procinfo") == 0)
{
*osabi = GDB_OSABI_NETBSD_ELF;
*osabi = GDB_OSABI_NETBSD;
return;
}
}
@ -547,6 +543,7 @@ generic_elf_osabi_sniffer (bfd *abfd)
{
case ELFOSABI_NONE:
case ELFOSABI_GNU:
case ELFOSABI_HPUX:
/* When the EI_OSABI field in the ELF header is ELFOSABI_NONE
(0), then the ELF structures in the file are conforming to
the base specification for that machine (there are no
@ -555,34 +552,27 @@ generic_elf_osabi_sniffer (bfd *abfd)
The same applies for ELFOSABI_GNU: this can mean GNU/Hurd,
GNU/Linux, and possibly more. */
/* And likewise ELFOSABI_HPUX. For some reason the default
value for the EI_OSABI field is ELFOSABI_HPUX for all PA-RISC
targets (with the exception of GNU/Linux). */
bfd_map_over_sections (abfd,
generic_elf_osabi_sniff_abi_tag_sections,
&osabi);
break;
case ELFOSABI_FREEBSD:
osabi = GDB_OSABI_FREEBSD_ELF;
osabi = GDB_OSABI_FREEBSD;
break;
case ELFOSABI_NETBSD:
osabi = GDB_OSABI_NETBSD_ELF;
osabi = GDB_OSABI_NETBSD;
break;
case ELFOSABI_SOLARIS:
osabi = GDB_OSABI_SOLARIS;
break;
case ELFOSABI_HPUX:
/* For some reason the default value for the EI_OSABI field is
ELFOSABI_HPUX for all PA-RISC targets (with the exception of
GNU/Linux). We use HP-UX ELF as the default, but let any
OS-specific notes override this. */
osabi = GDB_OSABI_HPUX_ELF;
bfd_map_over_sections (abfd,
generic_elf_osabi_sniff_abi_tag_sections,
&osabi);
break;
case ELFOSABI_OPENVMS:
osabi = GDB_OSABI_OPENVMS;
break;
@ -595,7 +585,7 @@ generic_elf_osabi_sniffer (bfd *abfd)
header to "brand" their ELF binaries in FreeBSD 3.x. */
if (memcmp (&elf_elfheader (abfd)->e_ident[8],
"FreeBSD", sizeof ("FreeBSD")) == 0)
osabi = GDB_OSABI_FREEBSD_ELF;
osabi = GDB_OSABI_FREEBSD;
}
return osabi;

7
gdb/ppc-fbsd-tdep.c
View File

@ -343,11 +343,10 @@ void _initialize_ppcfbsd_tdep (void);
void
_initialize_ppcfbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_powerpc, bfd_mach_ppc, GDB_OSABI_FREEBSD_ELF,
gdbarch_register_osabi (bfd_arch_powerpc, bfd_mach_ppc, GDB_OSABI_FREEBSD,
ppcfbsd_init_abi);
gdbarch_register_osabi (bfd_arch_powerpc, bfd_mach_ppc64,
GDB_OSABI_FREEBSD_ELF,
gdbarch_register_osabi (bfd_arch_powerpc, bfd_mach_ppc64, GDB_OSABI_FREEBSD,
ppcfbsd_init_abi);
gdbarch_register_osabi (bfd_arch_rs6000, 0, GDB_OSABI_FREEBSD_ELF,
gdbarch_register_osabi (bfd_arch_rs6000, 0, GDB_OSABI_FREEBSD,
ppcfbsd_init_abi);
}

2
gdb/ppc-nbsd-tdep.c
View File

@ -195,7 +195,7 @@ void _initialize_ppcnbsd_tdep (void);
void
_initialize_ppcnbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_powerpc, 0, GDB_OSABI_NETBSD_ELF,
gdbarch_register_osabi (bfd_arch_powerpc, 0, GDB_OSABI_NETBSD,
ppcnbsd_init_abi);
/* Avoid initializing the register offsets again if they were

22
gdb/ppc-obsd-tdep.c
View File

@ -262,33 +262,15 @@ ppcobsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
}
/* OpenBSD uses uses the traditional NetBSD core file format, even for
ports that use ELF. */
#define GDB_OSABI_NETBSD_CORE GDB_OSABI_OPENBSD_ELF
static enum gdb_osabi
ppcobsd_core_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
return GDB_OSABI_NETBSD_CORE;
return GDB_OSABI_UNKNOWN;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_ppcobsd_tdep (void);
void
_initialize_ppcobsd_tdep (void)
{
/* BFD doesn't set a flavour for NetBSD style a.out core files. */
gdbarch_register_osabi_sniffer (bfd_arch_powerpc, bfd_target_unknown_flavour,
ppcobsd_core_osabi_sniffer);
gdbarch_register_osabi (bfd_arch_rs6000, 0, GDB_OSABI_OPENBSD_ELF,
gdbarch_register_osabi (bfd_arch_rs6000, 0, GDB_OSABI_OPENBSD,
ppcobsd_init_abi);
gdbarch_register_osabi (bfd_arch_powerpc, 0, GDB_OSABI_OPENBSD_ELF,
gdbarch_register_osabi (bfd_arch_powerpc, 0, GDB_OSABI_OPENBSD,
ppcobsd_init_abi);
/* Avoid initializing the register offsets again if they were

3
gdb/rs6000-tdep.c
View File

@ -6530,8 +6530,7 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
switch (info.osabi)
{
case GDB_OSABI_LINUX:
case GDB_OSABI_NETBSD_AOUT:
case GDB_OSABI_NETBSD_ELF:
case GDB_OSABI_NETBSD:
case GDB_OSABI_UNKNOWN:
set_gdbarch_unwind_pc (gdbarch, rs6000_unwind_pc);
frame_unwind_append_unwinder (gdbarch, &rs6000_epilogue_frame_unwind);

21
gdb/sh-nbsd-tdep.c
View File

@ -71,31 +71,14 @@ shnbsd_init_abi (struct gdbarch_info info,
}
/* OpenBSD uses uses the traditional NetBSD core file format, even for
ports that use ELF. */
#define GDB_OSABI_NETBSD_CORE GDB_OSABI_OPENBSD_ELF
static enum gdb_osabi
shnbsd_core_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
return GDB_OSABI_NETBSD_CORE;
return GDB_OSABI_UNKNOWN;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
extern initialize_file_ftype _initialize_shnbsd_tdep;
void
_initialize_shnbsd_tdep (void)
{
/* BFD doesn't set a flavour for NetBSD style a.out core files. */
gdbarch_register_osabi_sniffer (bfd_arch_sh, bfd_target_unknown_flavour,
shnbsd_core_osabi_sniffer);
gdbarch_register_osabi (bfd_arch_sh, 0, GDB_OSABI_NETBSD_ELF,
gdbarch_register_osabi (bfd_arch_sh, 0, GDB_OSABI_NETBSD,
shnbsd_init_abi);
gdbarch_register_osabi (bfd_arch_sh, 0, GDB_OSABI_OPENBSD_ELF,
gdbarch_register_osabi (bfd_arch_sh, 0, GDB_OSABI_OPENBSD,
shnbsd_init_abi);
}

24
gdb/solib.c
View File

@ -1240,29 +1240,7 @@ clear_solib (void)
{
const struct target_so_ops *ops = solib_ops (target_gdbarch ());
/* This function is expected to handle ELF shared libraries. It is
also used on Solaris, which can run either ELF or a.out binaries
(for compatibility with SunOS 4), both of which can use shared
libraries. So we don't know whether we have an ELF executable or
an a.out executable until the user chooses an executable file.
ELF shared libraries don't get mapped into the address space
until after the program starts, so we'd better not try to insert
breakpoints in them immediately. We have to wait until the
dynamic linker has loaded them; we'll hit a bp_shlib_event
breakpoint (look for calls to create_solib_event_breakpoint) when
it's ready.
SunOS shared libraries seem to be different --- they're present
as soon as the process begins execution, so there's no need to
put off inserting breakpoints. There's also nowhere to put a
bp_shlib_event breakpoint, so if we put it off, we'll never get
around to it.
So: disable breakpoints only if we're using ELF shared libs. */
if (exec_bfd != NULL
&& bfd_get_flavour (exec_bfd) != bfd_target_aout_flavour)
disable_breakpoints_in_shlibs ();
disable_breakpoints_in_shlibs ();
while (so_list_head)
{

58
gdb/sparc-nbsd-tdep.c
View File

@ -290,7 +290,7 @@ static const struct regset sparc32nbsd_fpregset =
NULL, sparc32nbsd_supply_fpregset, NULL
};
static void
void
sparc32nbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
@ -309,54 +309,11 @@ sparc32nbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
tdep->step_trap = sparcnbsd_step_trap;
frame_unwind_append_unwinder (gdbarch, &sparc32nbsd_sigcontext_frame_unwind);
}
static void
sparc32nbsd_aout_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
sparc32nbsd_init_abi (info, gdbarch);
}
void
sparc32nbsd_elf_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
sparc32nbsd_init_abi (info, gdbarch);
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
}
static enum gdb_osabi
sparcnbsd_aout_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "a.out-sparc-netbsd") == 0)
return GDB_OSABI_NETBSD_AOUT;
return GDB_OSABI_UNKNOWN;
}
/* OpenBSD uses the traditional NetBSD core file format, even for
ports that use ELF. Therefore, if the default OS ABI is OpenBSD
ELF, we return that instead of NetBSD a.out. This is mainly for
the benfit of OpenBSD/sparc64, which inherits the sniffer below
since we include this file for an OpenBSD/sparc64 target. For
OpenBSD/sparc, the NetBSD a.out OS ABI is probably similar enough
to both the OpenBSD a.out and the OpenBSD ELF OS ABI. */
#if defined (GDB_OSABI_DEFAULT) && (GDB_OSABI_DEFAULT == GDB_OSABI_OPENBSD_ELF)
#define GDB_OSABI_NETBSD_CORE GDB_OSABI_OPENBSD_ELF
#else
#define GDB_OSABI_NETBSD_CORE GDB_OSABI_NETBSD_AOUT
#endif
static enum gdb_osabi
sparcnbsd_core_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
return GDB_OSABI_NETBSD_CORE;
return GDB_OSABI_UNKNOWN;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_sparcnbsd_tdep (void);
@ -364,15 +321,6 @@ void _initialize_sparcnbsd_tdep (void);
void
_initialize_sparcnbsd_tdep (void)
{
gdbarch_register_osabi_sniffer (bfd_arch_sparc, bfd_target_aout_flavour,
sparcnbsd_aout_osabi_sniffer);
/* BFD doesn't set a flavour for NetBSD style a.out core files. */
gdbarch_register_osabi_sniffer (bfd_arch_sparc, bfd_target_unknown_flavour,
sparcnbsd_core_osabi_sniffer);
gdbarch_register_osabi (bfd_arch_sparc, 0, GDB_OSABI_NETBSD_AOUT,
sparc32nbsd_aout_init_abi);
gdbarch_register_osabi (bfd_arch_sparc, 0, GDB_OSABI_NETBSD_ELF,
sparc32nbsd_elf_init_abi);
gdbarch_register_osabi (bfd_arch_sparc, 0, GDB_OSABI_NETBSD,
sparc32nbsd_init_abi);
}

4
gdb/sparc-obsd-tdep.c
View File

@ -235,7 +235,7 @@ static void
sparc32obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
/* OpenBSD/sparc is very similar to NetBSD/sparc ELF. */
sparc32nbsd_elf_init_abi (info, gdbarch);
sparc32nbsd_init_abi (info, gdbarch);
set_gdbarch_skip_solib_resolver (gdbarch, obsd_skip_solib_resolver);
@ -253,6 +253,6 @@ void _initialize_sparc32obsd_tdep (void);
void
_initialize_sparc32obsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_sparc, 0, GDB_OSABI_OPENBSD_ELF,
gdbarch_register_osabi (bfd_arch_sparc, 0, GDB_OSABI_OPENBSD,
sparc32obsd_init_abi);
}

4
gdb/sparc-tdep.h
View File

@ -246,8 +246,8 @@ extern const struct sparc_gregmap sparc32nbsd_gregmap;
extern CORE_ADDR sparcnbsd_step_trap (struct frame_info *frame,
unsigned long insn);
extern void sparc32nbsd_elf_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch);
extern void sparc32nbsd_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch);
extern struct trad_frame_saved_reg *
sparc32nbsd_sigcontext_saved_regs (struct frame_info *next_frame);

2
gdb/sparc64-fbsd-tdep.c
View File

@ -248,5 +248,5 @@ void
_initialize_sparc64fbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_sparc, bfd_mach_sparc_v9,
GDB_OSABI_FREEBSD_ELF, sparc64fbsd_init_abi);
GDB_OSABI_FREEBSD, sparc64fbsd_init_abi);
}

2
gdb/sparc64-nbsd-tdep.c
View File

@ -276,5 +276,5 @@ void
_initialize_sparc64nbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_sparc, bfd_mach_sparc_v9,
GDB_OSABI_NETBSD_ELF, sparc64nbsd_init_abi);
GDB_OSABI_NETBSD, sparc64nbsd_init_abi);
}

2
gdb/sparc64-obsd-tdep.c
View File

@ -448,5 +448,5 @@ void
_initialize_sparc64obsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_sparc, bfd_mach_sparc_v9,
GDB_OSABI_OPENBSD_ELF, sparc64obsd_init_abi);
GDB_OSABI_OPENBSD, sparc64obsd_init_abi);
}

9
gdb/stabsread.c
View File

@ -18,10 +18,11 @@
along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Support routines for reading and decoding debugging information in
the "stabs" format. This format is used with many systems that use
the a.out object file format, as well as some systems that use
COFF or ELF where the stabs data is placed in a special section.
Avoid placing any object file format specific code in this file. */
the "stabs" format. This format is used by some systems that use
COFF or ELF where the stabs data is placed in a special section (as
well as with many old systems that used the a.out object file
format). Avoid placing any object file format specific code in
this file. */
#include "defs.h"
#include "bfd.h"

2
gdb/symmisc.c
View File

@ -139,7 +139,7 @@ print_objfile_statistics (void)
blockvectors);
if (OBJSTAT (objfile, sz_strtab) > 0)
printf_filtered (_(" Space used by a.out string tables: %d\n"),
printf_filtered (_(" Space used by string tables: %d\n"),
OBJSTAT (objfile, sz_strtab));
printf_filtered (_(" Total memory used for objfile obstack: %s\n"),
pulongest (obstack_memory_used (&objfile

2
gdb/vax-nbsd-tdep.c
View File

@ -41,6 +41,6 @@ void _initialize_vaxnbsd_tdep (void);
void
_initialize_vaxnbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_vax, 0, GDB_OSABI_NETBSD_ELF,
gdbarch_register_osabi (bfd_arch_vax, 0, GDB_OSABI_NETBSD,
vaxnbsd_elf_init_abi);
}

178
gdb/vax-obsd-tdep.c
View File

@ -1,178 +0,0 @@
/* Target-dependent code for OpenBSD/vax.
Copyright (C) 2005-2016 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 3 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, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "arch-utils.h"
#include "frame.h"
#include "frame-unwind.h"
#include "osabi.h"
#include "symtab.h"
#include "trad-frame.h"
#include "vax-tdep.h"
/* Signal trampolines. */
/* Since OpenBSD 3.2, the sigtramp routine is mapped at a random page
in virtual memory. The randomness makes it somewhat tricky to
detect it, but fortunately we can rely on the fact that the start
of the sigtramp routine is page-aligned. We recognize the
trampoline by looking for the code that invokes the sigreturn
system call. The offset where we can find that code varies from
release to release.
By the way, the mapping mentioned above is read-only, so you cannot
place a breakpoint in the signal trampoline. */
/* Default page size. */
static const int vaxobsd_page_size = 4096;
/* Offset for sigreturn(2). */
static const int vaxobsd_sigreturn_offset = 0x11;
/* Instruction sequence for sigreturn(2). VAX doesn't have
fixed-length instructions so we include the ensuing exit(2) to
reduce the chance of spurious matches. */
static const gdb_byte vaxobsd_sigreturn[] = {
0xbc, 0x8f, 0x67, 0x00, /* chmk $SYS_sigreturn */
0xbc, 0x01 /* chmk $SYS_exit */
};
static int
vaxobsd_sigtramp_sniffer (const struct frame_unwind *self,
struct frame_info *this_frame,
void **this_cache)
{
CORE_ADDR pc = get_frame_pc (this_frame);
CORE_ADDR start_pc = (pc & ~(vaxobsd_page_size - 1));
CORE_ADDR sigreturn_addr = start_pc + vaxobsd_sigreturn_offset;
gdb_byte *buf;
const char *name;
find_pc_partial_function (pc, &name, NULL, NULL);
if (name)
return 0;
buf = (gdb_byte *) alloca (sizeof vaxobsd_sigreturn);
if (!safe_frame_unwind_memory (this_frame, sigreturn_addr,
buf, sizeof vaxobsd_sigreturn))
return 0;
if (memcmp(buf, vaxobsd_sigreturn, sizeof vaxobsd_sigreturn) == 0)
return 1;
return 0;
}
static struct trad_frame_cache *
vaxobsd_sigtramp_frame_cache (struct frame_info *this_frame, void **this_cache)
{
struct trad_frame_cache *cache;
CORE_ADDR addr, base, func;
if (*this_cache)
return (struct trad_frame_cache *) *this_cache;
cache = trad_frame_cache_zalloc (this_frame);
*this_cache = cache;
func = get_frame_pc (this_frame);
func &= ~(vaxobsd_page_size - 1);
base = get_frame_register_unsigned (this_frame, VAX_SP_REGNUM);
addr = get_frame_memory_unsigned (this_frame, base - 4, 4);
trad_frame_set_reg_addr (cache, VAX_SP_REGNUM, addr + 8);
trad_frame_set_reg_addr (cache, VAX_FP_REGNUM, addr + 12);
trad_frame_set_reg_addr (cache, VAX_AP_REGNUM, addr + 16);
trad_frame_set_reg_addr (cache, VAX_PC_REGNUM, addr + 20);
trad_frame_set_reg_addr (cache, VAX_PS_REGNUM, addr + 24);
/* Construct the frame ID using the function start. */
trad_frame_set_id (cache, frame_id_build (base, func));
return cache;
}
static void
vaxobsd_sigtramp_frame_this_id (struct frame_info *this_frame,
void **this_cache, struct frame_id *this_id)
{
struct trad_frame_cache *cache =
vaxobsd_sigtramp_frame_cache (this_frame, this_cache);
trad_frame_get_id (cache, this_id);
}
static struct value *
vaxobsd_sigtramp_frame_prev_register (struct frame_info *this_frame,
void **this_cache, int regnum)
{
struct trad_frame_cache *cache =
vaxobsd_sigtramp_frame_cache (this_frame, this_cache);
return trad_frame_get_register (cache, this_frame, regnum);
}
static const struct frame_unwind vaxobsd_sigtramp_frame_unwind = {
SIGTRAMP_FRAME,
default_frame_unwind_stop_reason,
vaxobsd_sigtramp_frame_this_id,
vaxobsd_sigtramp_frame_prev_register,
NULL,
vaxobsd_sigtramp_sniffer
};
/* OpenBSD a.out. */
static void
vaxobsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
frame_unwind_append_unwinder (gdbarch, &vaxobsd_sigtramp_frame_unwind);
}
/* FIXME: kettenis/20050821: Since OpenBSD/vax binaries are
indistingushable from NetBSD/vax a.out binaries, building a GDB
that should support both these targets will probably not work as
expected. */
#define GDB_OSABI_OPENBSD_AOUT GDB_OSABI_NETBSD_AOUT
static enum gdb_osabi
vaxobsd_aout_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "a.out-vax-netbsd") == 0)
return GDB_OSABI_OPENBSD_AOUT;
return GDB_OSABI_UNKNOWN;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_vaxobsd_tdep (void);
void
_initialize_vaxobsd_tdep (void)
{
gdbarch_register_osabi_sniffer (bfd_arch_vax, bfd_target_aout_flavour,
vaxobsd_aout_osabi_sniffer);
gdbarch_register_osabi (bfd_arch_vax, 0, GDB_OSABI_OPENBSD_AOUT,
vaxobsd_init_abi);
}