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Multiarch SVR4_FETCH_LINK_MAP_OFFSETS and GET_LONGJMP_TARGET for GNU/Linux/MIPS.

This commit is contained in:
Kevin Buettner 2002-12-21 05:07:36 +00:00
parent e8119602a5
commit 19ed69dd06
4 changed files with 32 additions and 22 deletions
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14
gdb/ChangeLog
View File

@ -1,3 +1,17 @@
2002-12-20 Kevin Buettner <kevinb@redhat.com>
* Makefile.in (mips-linux-tdep.o): Add $(osabi_h) and $(gdb_string_h).
* config/mips/tm-linux.h (mips_linux_svr4_fetch_link_map_offsets)
(mips_linux_get_longjmp_target): Delete declarations.
(SVR4_FETCH_LINK_MAP_OFFSETS, GET_LONGJMP_TARGET)
(MIPS_LINUX_JB_ELEMENT_SIZE, MIPS_LINUX_JB_PC): Delete definitions.
* mips-linux-tdep.c (osabi.h, gdb_string.h): Include.
(MIPS_LINUX_JB_ELEMENT_SIZE, MIPS_LINUX_JB_PC): Define.
(mips_linux_get_longjmp_target)
(mips_linux_svr4_fetch_link_map_offsets): Make static.
(mips_linux_init_abi): New function.
(_initialize_mips_linux_tdep): Register mips_linux_init_abi().
2002-12-19 Keith Seitz <keiths@redhat.com>
patch committed by Elena Zannoni <ezannoni@redhat.com>

2
gdb/Makefile.in
View File

@ -1946,7 +1946,7 @@ minsyms.o: minsyms.c $(defs_h) $(gdb_string_h) $(symtab_h) $(bfd_h) \
mips-irix-tdep.o: mips-irix-tdep.c $(defs_h) $(osabi_h) $(elf_bfd_h)
mips-linux-nat.o: mips-linux-nat.c $(defs_h)
mips-linux-tdep.o: mips-linux-tdep.c $(defs_h) $(gdbcore_h) $(target_h) \
$(solib_svr4_h)
$(solib_svr4_h) $(osabi_h) $(gdb_string_h)
mips-nat.o: mips-nat.c $(defs_h) $(inferior_h) $(gdbcore_h) $(regcache_h)
mips-tdep.o: mips-tdep.c $(defs_h) $(gdb_string_h) $(frame_h) $(inferior_h) \
$(symtab_h) $(value_h) $(gdbcmd_h) $(language_h) $(gdbcore_h) \

19
gdb/config/mips/tm-linux.h
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@ -40,25 +40,6 @@
#include "config/tm-linux.h"
/* Use target_specific function to define link map offsets. */
extern struct link_map_offsets *mips_linux_svr4_fetch_link_map_offsets (void);
#define SVR4_FETCH_LINK_MAP_OFFSETS() \
mips_linux_svr4_fetch_link_map_offsets ()
/* Details about jmp_buf. */
#define MIPS_LINUX_JB_ELEMENT_SIZE 4
#define MIPS_LINUX_JB_PC 0
/* Figure out where the longjmp will land. Slurp the arguments out of the
stack. We expect the first arg to be a pointer to the jmp_buf structure
from which we extract the pc (JB_PC) that we will land at. The pc is
copied into ADDR. This routine returns 1 on success. */
#define GET_LONGJMP_TARGET(ADDR) mips_linux_get_longjmp_target(ADDR)
extern int mips_linux_get_longjmp_target (CORE_ADDR *);
/* We do single stepping in software. */
#define SOFTWARE_SINGLE_STEP_P() 1

19
gdb/mips-linux-tdep.c
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@ -23,6 +23,8 @@
#include "gdbcore.h"
#include "target.h"
#include "solib-svr4.h"
#include "osabi.h"
#include "gdb_string.h"
/* Copied from <asm/elf.h>. */
#define ELF_NGREG 45
@ -60,7 +62,10 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
which we extract the pc (MIPS_LINUX_JB_PC) that we will land at. The pc
is copied into PC. This routine returns 1 on success. */
int
#define MIPS_LINUX_JB_ELEMENT_SIZE 4
#define MIPS_LINUX_JB_PC 0
static int
mips_linux_get_longjmp_target (CORE_ADDR *pc)
{
CORE_ADDR jb_addr;
@ -309,7 +314,7 @@ static struct core_fns regset_core_fns =
This makes it possible to access GNU/Linux MIPS shared libraries from a
GDB that was built on a different host platform (for cross debugging). */
struct link_map_offsets *
static struct link_map_offsets *
mips_linux_svr4_fetch_link_map_offsets (void)
{
static struct link_map_offsets lmo;
@ -342,8 +347,18 @@ mips_linux_svr4_fetch_link_map_offsets (void)
return lmp;
}
static void
mips_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
set_gdbarch_get_longjmp_target (gdbarch, mips_linux_get_longjmp_target);
set_solib_svr4_fetch_link_map_offsets
(gdbarch, mips_linux_svr4_fetch_link_map_offsets);
}
void
_initialize_mips_linux_tdep (void)
{
gdbarch_register_osabi (bfd_arch_mips, GDB_OSABI_LINUX,
mips_linux_init_abi);
add_core_fns (&regset_core_fns);
}