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* gdbarch.sh (GET_LONGJMP_TARGET): Add rule.

Browse Source 
* gdbarch.c gdbarch.h: Regenerate.
* breakpoint.c (create_longjmp_breakpoint): Always compile this
function.
(breakpoint_reset): Test GET_LONGJMP_TARGET_P().
* infrun.c (GET_LONGJMP_TARGET): Delete default definition.
(handle_inferior_event): Test GET_LONGJMP_TARGET_P().

* arm-tdep.h (struct gdbarch_tdep): Add jb_pc and jb_elt_size fields.
* arm-tdep.c (arm_get_longjmp_target): New function.
(arm_gdbarch_init): Initialize jb_pc to -1.  If ABI handler changes
this to a positive value register arm_get_longjmp_target as the
longjmp handler.
* arm-linux-tdep.c (arm_get_longjmp_target): Delete.
(arm_linux_init_abi): Set up longjmp description in tdep.
* armnbsd-nat.c (get_longjmp_target): Delete.
* armnbsd-tdep.c (arm_netbsd_init_abi_common): Set up longjmp
description in tdep.
* config/arm/tm-nbsd.h (JB_ELEMENT_SIZE, JB_PC): Delete.
(get_longjmp_target): Delete declaration.
(GET_LONGJMP_TARGET): Delete.
* config/arm/tm-linux.h (arm_get_longjmp_target): Delete declaration.
(GET_LONGJMP_TARGET): Delete.
This commit is contained in:
Richard Earnshaw
2002-02-18 13:35:31 +00:00
parent 82bd7b59c9
commit 9df628e0aa
13 changed files with 159 additions and 85 deletions
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37
gdb/arm-linux-tdep.c
View File

@@ -58,40 +58,10 @@ LONGEST arm_linux_call_dummy_words[] =
0xe1a0e00f, 0xe1a0f004, 0xef9f001
};
#ifdef GET_LONGJMP_TARGET
/* Figure out where the longjmp will land. We expect that we have
just entered longjmp and haven't yet altered r0, r1, so the
arguments are still in the registers. (ARM_A1_REGNUM) points at
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
true on success. */
#define LONGJMP_TARGET_SIZE sizeof(int)
#define JB_ELEMENT_SIZE sizeof(int)
#define JB_SL 18
#define JB_FP 19
#define JB_SP 20
/* Description of the longjmp buffer. */
#define JB_ELEMENT_SIZE INT_REGISTER_RAW_SIZE
#define JB_PC 21
int
arm_get_longjmp_target (CORE_ADDR * pc)
{
CORE_ADDR jb_addr;
char buf[LONGJMP_TARGET_SIZE];
jb_addr = read_register (ARM_A1_REGNUM);
if (target_read_memory (jb_addr + JB_PC * JB_ELEMENT_SIZE, buf,
LONGJMP_TARGET_SIZE))
return 0;
*pc = extract_address (buf, LONGJMP_TARGET_SIZE);
return 1;
}
#endif /* GET_LONGJMP_TARGET */
/* Extract from an array REGBUF containing the (raw) register state
a function return value of type TYPE, and copy that, in virtual format,
into VALBUF. */
@@ -548,6 +518,9 @@ arm_linux_init_abi (struct gdbarch_info info,
tdep->lowest_pc = 0x8000;
tdep->arm_breakpoint = arm_linux_arm_le_breakpoint;
tdep->arm_breakpoint_size = sizeof (arm_linux_arm_le_breakpoint);
tdep->jb_pc = JB_PC;
tdep->jb_elt_size = JB_ELEMENT_SIZE;
}
void