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* arm-tdep.c (arm_call_dummy_words): Define. 

* arm-linux-tdep.c (arm_linux_call_dummy_words): Define.
* config/arm/tm-arm.h (CALL_DUMMY_P): Define.
(CALL_DUMMY_WORDS): Define.
(arm_call_dummy_words): Declare.
* config/arm/tm-linux.h (CALL_DUMMY_WORDS): Define.
(arm_linux_call_dummy_words): Declare.
This commit is contained in:
Richard Earnshaw 2002-01-30 16:35:51 +00:00
parent ca09e32bb2
commit 6eb69eab29
5 changed files with 45 additions and 17 deletions
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10
gdb/ChangeLog
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@ -1,3 +1,13 @@
2002-01-30 Richard Earnshaw <rearnsha@arm.com>
* arm-tdep.c (arm_call_dummy_words): Define.
* arm-linux-tdep.c (arm_linux_call_dummy_words): Define.
* config/arm/tm-arm.h (CALL_DUMMY_P): Define.
(CALL_DUMMY_WORDS): Define.
(arm_call_dummy_words): Declare.
* config/arm/tm-linux.h (CALL_DUMMY_WORDS): Define.
(arm_linux_call_dummy_words): Declare.
2002-01-30 Andreas Schwab <schwab@suse.de>
* m68klinux-nat.c: Fix last change to use regcache_collect

14
gdb/arm-linux-tdep.c
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@ -33,6 +33,20 @@
#include "symfile.h"
#include "objfiles.h"
/* CALL_DUMMY_WORDS:
This sequence of words is the instructions
mov lr, pc
mov pc, r4
swi bkpt_swi
Note this is 12 bytes. */
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

14
gdb/arm-tdep.c
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@ -1249,6 +1249,20 @@ arm_push_dummy_frame (void)
write_register (SP_REGNUM, sp);
}
/* CALL_DUMMY_WORDS:
This sequence of words is the instructions
mov lr,pc
mov pc,r4
illegal
Note this is 12 bytes. */
LONGEST arm_call_dummy_words[] =
{
0xe1a0e00f, 0xe1a0f004, 0xe7ffdefe
};
/* Fix up the call dummy, based on whether the processor is currently
in Thumb or ARM mode, and whether the target function is Thumb or
ARM. There are three different situations requiring three

10
gdb/config/arm/tm-arm.h
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@ -406,15 +406,13 @@ void arm_pop_frame (void);
#define POP_FRAME arm_pop_frame ()
/* This sequence of words is the instructions
#define CALL_DUMMY_P (1)
mov lr,pc
mov pc,r4
illegal
#define CALL_DUMMY_WORDS arm_call_dummy_words
extern LONGEST arm_call_dummy_words[];
Note this is 12 bytes. */
#define SIZEOF_CALL_DUMMY_WORDS (3 * sizeof (LONGEST))
#define CALL_DUMMY {0xe1a0e00f, 0xe1a0f004, 0xe7ffdefe}
#define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy */
#define CALL_DUMMY_BREAKPOINT_OFFSET arm_call_dummy_breakpoint_offset()

14
gdb/config/arm/tm-linux.h
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@ -44,17 +44,9 @@ extern struct link_map_offsets *arm_linux_svr4_fetch_link_map_offsets (void);
#undef ARM_LE_BREAKPOINT
#define ARM_LE_BREAKPOINT {0x01,0x00,0x9f,0xef}
/* This sequence of words used in the CALL_DUMMY are the following
instructions:
mov lr, pc
mov pc, r4
swi bkpt_swi
Note this is 12 bytes. */
#undef CALL_DUMMY
#define CALL_DUMMY {0xe1a0e00f, 0xe1a0f004, 0xef9f001}
#undef CALL_DUMMY_WORDS
#define CALL_DUMMY_WORDS arm_linux_call_dummy_words
extern LONGEST arm_linux_call_dummy_words[];
/* Extract from an array REGBUF containing the (raw) register state
a function return value of type TYPE, and copy that, in virtual format,