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exec: extract TB watchpoint check 

Will be moved by the next patch.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Blue Swirl 2012-12-02 21:28:09 +00:00
parent 44209fc4ed
commit 5a3165263a
1 changed files with 14 additions and 8 deletions
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22
exec.c
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@ -2987,12 +2987,24 @@ static const MemoryRegionOps notdirty_mem_ops = {
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void tb_check_watchpoint(CPUArchState *env)
{
TranslationBlock *tb;
tb = tb_find_pc(env->mem_io_pc);
if (!tb) {
cpu_abort(env, "check_watchpoint: could not find TB for pc=%p",
(void *)env->mem_io_pc);
}
cpu_restore_state(tb, env, env->mem_io_pc);
tb_phys_invalidate(tb, -1);
}
/* Generate a debug exception if a watchpoint has been hit. */
static void check_watchpoint(int offset, int len_mask, int flags)
{
CPUArchState *env = cpu_single_env;
target_ulong pc, cs_base;
TranslationBlock *tb;
target_ulong vaddr;
CPUWatchpoint *wp;
int cpu_flags;
@ -3011,13 +3023,7 @@ static void check_watchpoint(int offset, int len_mask, int flags)
wp->flags |= BP_WATCHPOINT_HIT;
if (!env->watchpoint_hit) {
env->watchpoint_hit = wp;
tb = tb_find_pc(env->mem_io_pc);
if (!tb) {
cpu_abort(env, "check_watchpoint: could not find TB for "
"pc=%p", (void *)env->mem_io_pc);
}
cpu_restore_state(tb, env, env->mem_io_pc);
tb_phys_invalidate(tb, -1);
tb_check_watchpoint(env);
if (wp->flags & BP_STOP_BEFORE_ACCESS) {
env->exception_index = EXCP_DEBUG;
cpu_loop_exit(env);