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Make kdb_backtrace() sort of work.

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This commit is contained in:
Olivier Houchard 2004-07-19 12:26:44 +00:00
parent 98707ef546
commit 9cdb2bfc90
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=132402
1 changed files with 9 additions and 6 deletions
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15
sys/arm/arm/db_trace.c
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@ -32,6 +32,7 @@
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
@ -103,7 +104,7 @@ db_stack_trace_cmd(addr, have_addr, count, modif)
boolean_t trace_thread = FALSE;
int scp_offset;
if (kdb_frame == NULL)
if (kdb_frame == NULL && !have_addr)
return;
while ((c = *cp++) != 0) {
if (c == 'u')
@ -152,11 +153,7 @@ db_stack_trace_cmd(addr, have_addr, count, modif)
* In theory, the SCP isn't guaranteed to be in the function
* that generated the stack frame. We hope for the best.
*/
#ifdef __PROG26
scp = frame[FR_SCP] & R15_PC;
#else
scp = frame[FR_SCP];
#endif
db_printsym(scp, DB_STGY_PROC);
db_printf("\n\t");
@ -248,12 +245,18 @@ db_md_set_watchpoint(db_expr_t addr, db_expr_t size)
int
db_trace_thread(struct thread *thr, int count)
{
uint32_t addr;
db_stack_trace_cmd((db_expr_t)__builtin_frame_address(0), 1, -1, NULL);
if (thr == curthread)
addr = (uint32_t)__builtin_frame_address(0);
else
addr = thr->td_pcb->un_32.pcb32_r11;
db_stack_trace_cmd(addr, 1, -1, NULL);
return (0);
}
void
db_trace_self(void)
{
db_trace_thread(curthread, -1);
}