aboutsummaryrefslogtreecommitdiff
path: root/target-i386
diff options
context:
space:
mode:
authoraliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>2008-11-18 20:07:32 +0000
committeraliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>2008-11-18 20:07:32 +0000
commita1d1bb3101db1fea4ff47b74de15208971f8d64e (patch)
treed8062f3891754bd62a26bfd58613b5c74fb029c3 /target-i386
parentd6fc1b397bca686d2ac92f4e8f470c98472a3c4d (diff)
downloadqemu-a1d1bb3101db1fea4ff47b74de15208971f8d64e.zip
qemu-a1d1bb3101db1fea4ff47b74de15208971f8d64e.tar.gz
qemu-a1d1bb3101db1fea4ff47b74de15208971f8d64e.tar.bz2
Refactor and enhance break/watchpoint API (Jan Kiszka)
This patch prepares the QEMU cpu_watchpoint/breakpoint API to allow the succeeding enhancements this series comes with. First of all, it overcomes MAX_BREAKPOINTS/MAX_WATCHPOINTS by switching to dynamically allocated data structures that are kept in linked lists. This also allows to return a stable reference to the related objects, required for later introduced x86 debug register support. Breakpoints and watchpoints are stored with their full information set and an additional flag field that makes them easily extensible for use beyond pure guest debugging. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5738 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-i386')
-rw-r--r--target-i386/translate.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/target-i386/translate.c b/target-i386/translate.c
index 5006106..0de238b 100644
--- a/target-i386/translate.c
+++ b/target-i386/translate.c
@@ -7522,6 +7522,7 @@ static inline void gen_intermediate_code_internal(CPUState *env,
DisasContext dc1, *dc = &dc1;
target_ulong pc_ptr;
uint16_t *gen_opc_end;
+ CPUBreakpoint *bp;
int j, lj, cflags;
uint64_t flags;
target_ulong pc_start;
@@ -7605,9 +7606,9 @@ static inline void gen_intermediate_code_internal(CPUState *env,
gen_icount_start();
for(;;) {
- if (env->nb_breakpoints > 0) {
- for(j = 0; j < env->nb_breakpoints; j++) {
- if (env->breakpoints[j] == pc_ptr) {
+ if (unlikely(env->breakpoints)) {
+ for (bp = env->breakpoints; bp != NULL; bp = bp->next) {
+ if (bp->pc == pc_ptr) {
gen_debug(dc, pc_ptr - dc->cs_base);
break;
}