diff options
Diffstat (limited to 'coroutine-ucontext.c')
| -rw-r--r-- | coroutine-ucontext.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/coroutine-ucontext.c b/coroutine-ucontext.c index 5f43083..e3c450b 100644 --- a/coroutine-ucontext.c +++ b/coroutine-ucontext.c @@ -30,6 +30,10 @@ #include "qemu-common.h" #include "qemu-coroutine-int.h" +#ifdef CONFIG_VALGRIND_H +#include <valgrind/valgrind.h> +#endif + enum { /* Maximum free pool size prevents holding too many freed coroutines */ POOL_MAX_SIZE = 64, @@ -43,6 +47,11 @@ typedef struct { Coroutine base; void *stack; jmp_buf env; + +#ifdef CONFIG_VALGRIND_H + unsigned int valgrind_stack_id; +#endif + } CoroutineUContext; /** @@ -159,6 +168,11 @@ static Coroutine *coroutine_new(void) uc.uc_stack.ss_size = stack_size; uc.uc_stack.ss_flags = 0; +#ifdef CONFIG_VALGRIND_H + co->valgrind_stack_id = + VALGRIND_STACK_REGISTER(co->stack, co->stack + stack_size); +#endif + arg.p = co; makecontext(&uc, (void (*)(void))coroutine_trampoline, @@ -185,6 +199,16 @@ Coroutine *qemu_coroutine_new(void) return co; } +#ifdef CONFIG_VALGRIND_H +/* Work around an unused variable in the valgrind.h macro... */ +#pragma GCC diagnostic ignored "-Wunused-but-set-variable" +static inline void valgrind_stack_deregister(CoroutineUContext *co) +{ + VALGRIND_STACK_DEREGISTER(co->valgrind_stack_id); +} +#pragma GCC diagnostic error "-Wunused-but-set-variable" +#endif + void qemu_coroutine_delete(Coroutine *co_) { CoroutineUContext *co = DO_UPCAST(CoroutineUContext, base, co_); @@ -196,6 +220,10 @@ void qemu_coroutine_delete(Coroutine *co_) return; } +#ifdef CONFIG_VALGRIND_H + valgrind_stack_deregister(co); +#endif + g_free(co->stack); g_free(co); } |