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avoid segfaulting when attempting to set an unavailable type of breackpoint 

For example "bp 0x20000000 8 2" makes openocd segfaulting on a
stm32f4x Discovery board.

Change-Id: I1ddd46b1fa9ade78db2234ed975ccefb72539331
Signed-off-by: Salvador Arroyo <sarroyofdez@yahoo.es>
Reviewed-on: http://openocd.zylin.com/2342
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
This commit is contained in:
Salvador Arroyo 2014-10-11 23:37:08 +02:00 committed by Spencer Oliver
parent 2eacb8fdfb
commit 1d37b37dc7
1 changed files with 12 additions and 3 deletions
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15
src/target/target.c
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@ -3310,9 +3310,10 @@ static int handle_bp_command_set(struct command_context *cmd_ctx,
uint32_t addr, uint32_t asid, uint32_t length, int hw)
{
struct target *target = get_current_target(cmd_ctx);
int retval;
if (asid == 0) {
int retval = breakpoint_add(target, addr, length, hw);
retval = breakpoint_add(target, addr, length, hw);
if (ERROR_OK == retval)
command_print(cmd_ctx, "breakpoint set at 0x%8.8" PRIx32 "", addr);
else {
@ -3320,7 +3321,11 @@ static int handle_bp_command_set(struct command_context *cmd_ctx,
return retval;
}
} else if (addr == 0) {
int retval = context_breakpoint_add(target, asid, length, hw);
if (target->type->add_context_breakpoint == NULL) {
LOG_WARNING("Context breakpoint not available");
return ERROR_OK;
}
retval = context_breakpoint_add(target, asid, length, hw);
if (ERROR_OK == retval)
command_print(cmd_ctx, "Context breakpoint set at 0x%8.8" PRIx32 "", asid);
else {
@ -3328,7 +3333,11 @@ static int handle_bp_command_set(struct command_context *cmd_ctx,
return retval;
}
} else {
int retval = hybrid_breakpoint_add(target, addr, asid, length, hw);
if (target->type->add_hybrid_breakpoint == NULL) {
LOG_WARNING("Hybrid breakpoint not available");
return ERROR_OK;
}
retval = hybrid_breakpoint_add(target, addr, asid, length, hw);
if (ERROR_OK == retval)
command_print(cmd_ctx, "Hybrid breakpoint set at 0x%8.8" PRIx32 "", asid);
else {