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Minor bug fixes from last big checkin.

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This commit is contained in:
John Gilmore 1992-08-29 04:22:31 +00:00
parent d26c07d124
commit d6434f3974
2 changed files with 45 additions and 40 deletions
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8
gdb/rs6000-tdep.c
View File

@ -39,12 +39,14 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <sys/core.h>
#include <sys/ldr.h>
extern struct obstack frame_cache_obstack;
extern int errno;
/* Nonzero if we just simulated a single step break. */
int one_stepped;
/* Breakpoint shadows for the single step instructions will be kept here. */
static struct sstep_breaks {
@ -399,7 +401,7 @@ FIXME: This whole concept is broken. You should be able to detect
a dummy stack frame *on the user's stack itself*. When you do,
then you know the format of that stack frame -- including its
saved SP register! There should *not* be a separate stack in the
GDB process that keeps track of these dummy frames! -- gnu@cygnus.com Aug92 */
GDB process that keeps track of these dummy frames! -- gnu@cygnus.com Aug92
*/
pop_dummy_frame ()
@ -546,7 +548,7 @@ fix_call_dummy(dummyname, pc, fun, nargs, type)
*/
void
function_frame_info (pc, fdata)
int pc;
CORE_ADDR pc;
struct aix_framedata *fdata;
{
unsigned int tmp;

77
gdb/tm-rs6000.h
View File

@ -98,6 +98,8 @@ struct aix_framedata {
char frameless; /* true if frameless functions. */
};
void
function_frame_info PARAMS ((CORE_ADDR, struct aix_framedata *));
/* Define the byte order of the machine. */
@ -491,43 +493,44 @@ extern unsigned int rs6000_struct_return_address;
#define FRAME_FIND_SAVED_REGS(FRAME_INFO, FRAME_SAVED_REGS) \
{ \
int ii, frame_addr, func_start; \
struct aix_framedata fdata; \
\
/* find the start of the function and collect info about its frame. */ \
\
func_start = get_pc_function_start ((FRAME_INFO)->pc) + FUNCTION_START_OFFSET;\
function_frame_info (func_start, &fdata); \
bzero (&(FRAME_SAVED_REGS), sizeof (FRAME_SAVED_REGS)); \
\
/* if there were any saved registers, figure out parent's stack pointer. */ \
frame_addr = 0; \
/* the following is true only if the frame doesn't have a call to alloca(), \
FIXME. */ \
if (fdata.saved_fpr >= 0 || fdata.saved_gpr >= 0) { \
if ((FRAME_INFO)->prev && (FRAME_INFO)->prev->frame) \
frame_addr = (FRAME_INFO)->prev->frame; \
else \
frame_addr = read_memory_integer ((FRAME_INFO)->frame, 4); \
} \
\
/* if != -1, fdata.saved_fpr is the smallest number of saved_fpr. All fpr's \
from saved_fpr to fp31 are saved right underneath caller stack pointer, \
starting from fp31 first. */ \
\
if (fdata.saved_fpr >= 0) { \
for (ii=31; ii >= fdata.saved_fpr; --ii) \
(FRAME_SAVED_REGS).regs [FP0_REGNUM + ii] = frame_addr - ((32 - ii) * 8); \
frame_addr -= (32 - fdata.saved_fpr) * 8; \
} \
\
/* if != -1, fdata.saved_gpr is the smallest number of saved_gpr. All gpr's \
from saved_gpr to gpr31 are saved right under saved fprs, starting \
from r31 first. */ \
\
if (fdata.saved_gpr >= 0) \
for (ii=31; ii >= fdata.saved_gpr; --ii) \
(FRAME_SAVED_REGS).regs [ii] = frame_addr - ((32 - ii) * 4); \
int ii; \
CORE_ADDR frame_addr, func_start; \
struct aix_framedata fdata; \
\
/* find the start of the function and collect info about its frame. */\
\
func_start = get_pc_function_start ((FRAME_INFO)->pc) + FUNCTION_START_OFFSET; \
function_frame_info (func_start, &fdata); \
bzero (&(FRAME_SAVED_REGS), sizeof (FRAME_SAVED_REGS)); \
\
/* if there were any saved registers, figure out parent's stack pointer. */ \
frame_addr = 0; \
/* the following is true only if the frame doesn't have a call to alloca(), \
FIXME. */ \
if (fdata.saved_fpr >= 0 || fdata.saved_gpr >= 0) { \
if ((FRAME_INFO)->prev && (FRAME_INFO)->prev->frame) \
frame_addr = (FRAME_INFO)->prev->frame; \
else \
frame_addr = read_memory_integer ((FRAME_INFO)->frame, 4); \
} \
\
/* if != -1, fdata.saved_fpr is the smallest number of saved_fpr. All fpr's \
from saved_fpr to fp31 are saved right underneath caller stack pointer, \
starting from fp31 first. */ \
\
if (fdata.saved_fpr >= 0) { \
for (ii=31; ii >= fdata.saved_fpr; --ii) \
(FRAME_SAVED_REGS).regs [FP0_REGNUM + ii] = frame_addr - ((32 - ii) * 8); \
frame_addr -= (32 - fdata.saved_fpr) * 8; \
} \
\
/* if != -1, fdata.saved_gpr is the smallest number of saved_gpr. All gpr's \
from saved_gpr to gpr31 are saved right under saved fprs, starting \
from r31 first. */ \
\
if (fdata.saved_gpr >= 0) \
for (ii=31; ii >= fdata.saved_gpr; --ii) \
(FRAME_SAVED_REGS).regs [ii] = frame_addr - ((32 - ii) * 4); \
}