* hppabsd-tdep.c: Include "symtab.h", "objfiles.h", "target.h",
"value.h" and "elf/common.h". (hppabsd_supply_gregset): Use `gdb_byte *' for byte buffer. (hppabsd_find_global_pointer): New function. (hppabsd_init_abi): Set TDEP->find_global_pointer to hppabsd_find_global_pointer. * Makefile.in (hppabsd-tdep.o): Update dependencies.
This commit is contained in:
Mark Kettenis
parent
67f3cb056f
commit
dc28f363f5
3 changed files with 94 additions and 4 deletions
|
|
@ -1,3 +1,13 @@
|
|||
2005-06-20 Mark Kettenis <kettenis@gnu.org>
|
||||
|
||||
* hppabsd-tdep.c: Include "symtab.h", "objfiles.h", "target.h",
|
||||
"value.h" and "elf/common.h".
|
||||
(hppabsd_supply_gregset): Use `gdb_byte *' for byte buffer.
|
||||
(hppabsd_find_global_pointer): New function.
|
||||
(hppabsd_init_abi): Set TDEP->find_global_pointer to
|
||||
hppabsd_find_global_pointer.
|
||||
* Makefile.in (hppabsd-tdep.o): Update dependencies.
|
||||
|
||||
2005-06-12 Mark Kettenis <kettenis@gnu.org>
|
||||
|
||||
* hppa-tdep.c (hppa_pointer_to_address_hack): Remove function.
|
||||
|
|
|
|||
|
|
@ -2003,8 +2003,9 @@ hpacc-abi.o: hpacc-abi.c $(defs_h) $(value_h) $(gdb_regex_h) $(gdb_string_h) \
|
|||
$(gdbtypes_h) $(gdbcore_h) $(cp_abi_h) $(gnu_v2_abi_h)
|
||||
hppabsd-nat.o: hppabsd-nat.c $(defs_h) $(inferior_h) $(regcache_h) \
|
||||
$(target_h) $(hppa_tdep_h) $(inf_ptrace_h)
|
||||
hppabsd-tdep.o: hppabsd-tdep.c $(defs_h) $(arch_utils_h) $(osabi_h) \
|
||||
$(regcache_h) $(regset_h) $(gdb_assert_h) $(gdb_string_h) \
|
||||
hppabsd-tdep.o: hppabsd-tdep.c $(defs_h) $(arch_utils_h) $(symtab_h) \
|
||||
$(objfiles_h) $(osabi_h) $(regcache_h) $(regset_h) $(target_h) \
|
||||
$(value_h) $(gdb_assert_h) $(gdb_string_h) $(elf_common_h) \
|
||||
$(hppa_tdep_h) $(solib_svr4_h)
|
||||
hppa-hpux-nat.o: hppa-hpux-nat.c $(defs_h) $(inferior_h) $(regcache_h) \
|
||||
$(target_h) $(gdb_assert_h) $(hppa_tdep_h) $(inf_ptrace_h) \
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/* Target-dependent code for HP PA-RISC BSD's.
|
||||
|
||||
Copyright 2004 Free Software Foundation, Inc.
|
||||
Copyright 2004, 2005 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GDB.
|
||||
|
||||
|
|
@ -21,13 +21,19 @@
|
|||
|
||||
#include "defs.h"
|
||||
#include "arch-utils.h"
|
||||
#include "symtab.h"
|
||||
#include "objfiles.h"
|
||||
#include "osabi.h"
|
||||
#include "regcache.h"
|
||||
#include "regset.h"
|
||||
#include "target.h"
|
||||
#include "value.h"
|
||||
|
||||
#include "gdb_assert.h"
|
||||
#include "gdb_string.h"
|
||||
|
||||
#include "elf/common.h"
|
||||
|
||||
#include "hppa-tdep.h"
|
||||
#include "solib-svr4.h"
|
||||
|
||||
|
|
@ -44,7 +50,7 @@ static void
|
|||
hppabsd_supply_gregset (const struct regset *regset, struct regcache *regcache,
|
||||
int regnum, const void *gregs, size_t len)
|
||||
{
|
||||
const char *regs = gregs;
|
||||
const gdb_byte *regs = gregs;
|
||||
size_t offset;
|
||||
int i;
|
||||
|
||||
|
|
@ -86,6 +92,78 @@ hppabsd_regset_from_core_section (struct gdbarch *gdbarch,
|
|||
}
|
||||
|
||||
|
||||
CORE_ADDR
|
||||
hppabsd_find_global_pointer (struct value *function)
|
||||
{
|
||||
CORE_ADDR faddr = value_as_address (function);
|
||||
struct obj_section *faddr_sec;
|
||||
gdb_byte buf[4];
|
||||
|
||||
/* Is this a plabel? If so, dereference it to get the Global Pointer
|
||||
value. */
|
||||
if (faddr & 2)
|
||||
{
|
||||
if (target_read_memory ((faddr & ~3) + 4, buf, sizeof buf) == 0)
|
||||
return extract_unsigned_integer (buf, sizeof buf);
|
||||
}
|
||||
|
||||
/* If the address is in the .plt section, then the real function
|
||||
hasn't yet been fixed up by the linker so we cannot determine the
|
||||
Global Pointer for that function. */
|
||||
if (in_plt_section (faddr, NULL))
|
||||
return 0;
|
||||
|
||||
faddr_sec = find_pc_section (faddr);
|
||||
if (faddr_sec != NULL)
|
||||
{
|
||||
struct obj_section *sec;
|
||||
|
||||
ALL_OBJFILE_OSECTIONS (faddr_sec->objfile, sec)
|
||||
{
|
||||
if (strcmp (sec->the_bfd_section->name, ".dynamic") == 0)
|
||||
break;
|
||||
}
|
||||
|
||||
if (sec < faddr_sec->objfile->sections_end)
|
||||
{
|
||||
CORE_ADDR addr = sec->addr;
|
||||
|
||||
while (addr < sec->endaddr)
|
||||
{
|
||||
gdb_byte buf[4];
|
||||
LONGEST tag;
|
||||
|
||||
if (target_read_memory (addr, buf, sizeof buf) != 0)
|
||||
break;
|
||||
|
||||
tag = extract_signed_integer (buf, sizeof buf);
|
||||
if (tag == DT_PLTGOT)
|
||||
{
|
||||
CORE_ADDR pltgot;
|
||||
|
||||
if (target_read_memory (addr + 4, buf, sizeof buf) != 0)
|
||||
break;
|
||||
|
||||
/* The OpenBSD ld.so doesn't relocate DT_PLTGOT, so
|
||||
we have to do it ourselves. */
|
||||
pltgot = extract_unsigned_integer (buf, sizeof buf);
|
||||
pltgot += ANOFFSET (sec->objfile->section_offsets,
|
||||
SECT_OFF_TEXT (sec->objfile));
|
||||
return pltgot;
|
||||
}
|
||||
|
||||
if (tag == DT_NULL)
|
||||
break;
|
||||
|
||||
addr += 8;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
hppabsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
||||
{
|
||||
|
|
@ -96,6 +174,7 @@ hppabsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|||
(gdbarch, hppabsd_regset_from_core_section);
|
||||
|
||||
/* OpenBSD and NetBSD use ELF. */
|
||||
tdep->find_global_pointer = hppabsd_find_global_pointer;
|
||||
tdep->is_elf = 1;
|
||||
|
||||
/* OpenBSD and NetBSD uses SVR4-style shared libraries. */
|
||||
|
|
|
|||
Loading…
Reference in a new issue