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[Qemu-devel] [PATCH V6 4/6] coroutine-sigaltstack: use helper for alloca
From: |
Peter Lieven |
Subject: |
[Qemu-devel] [PATCH V6 4/6] coroutine-sigaltstack: use helper for allocating stack memory |
Date: |
Mon, 22 Aug 2016 15:04:29 +0200 |
Signed-off-by: Peter Lieven <address@hidden>
Reviewed-by: Paolo Bonzini <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
---
util/coroutine-sigaltstack.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/util/coroutine-sigaltstack.c b/util/coroutine-sigaltstack.c
index 9c2854c..ccf4861 100644
--- a/util/coroutine-sigaltstack.c
+++ b/util/coroutine-sigaltstack.c
@@ -143,7 +143,6 @@ static void coroutine_trampoline(int signal)
Coroutine *qemu_coroutine_new(void)
{
- const size_t stack_size = COROUTINE_STACK_SIZE;
CoroutineUContext *co;
CoroutineThreadState *coTS;
struct sigaction sa;
@@ -164,7 +163,7 @@ Coroutine *qemu_coroutine_new(void)
*/
co = g_malloc0(sizeof(*co));
- co->stack = g_malloc(stack_size);
+ co->stack = qemu_alloc_stack(COROUTINE_STACK_SIZE);
co->base.entry_arg = &old_env; /* stash away our jmp_buf */
coTS = coroutine_get_thread_state();
@@ -189,7 +188,7 @@ Coroutine *qemu_coroutine_new(void)
* Set the new stack.
*/
ss.ss_sp = co->stack;
- ss.ss_size = stack_size;
+ ss.ss_size = COROUTINE_STACK_SIZE;
ss.ss_flags = 0;
if (sigaltstack(&ss, &oss) < 0) {
abort();
@@ -253,7 +252,7 @@ void qemu_coroutine_delete(Coroutine *co_)
{
CoroutineUContext *co = DO_UPCAST(CoroutineUContext, base, co_);
- g_free(co->stack);
+ qemu_free_stack(co->stack, COROUTINE_STACK_SIZE);
g_free(co);
}
--
1.9.1
- [Qemu-devel] [PATCH V6 0/6] coroutine: mmap stack memory and stack size, Peter Lieven, 2016/08/22
- [Qemu-devel] [PATCH V6 1/6] oslib-posix: add helpers for stack alloc and free, Peter Lieven, 2016/08/22
- [Qemu-devel] [PATCH V6 2/6] coroutine: add a macro for the coroutine stack size, Peter Lieven, 2016/08/22
- [Qemu-devel] [PATCH V6 6/6] coroutine: reduce stack size to 64kB, Peter Lieven, 2016/08/22
- [Qemu-devel] [PATCH V6 4/6] coroutine-sigaltstack: use helper for allocating stack memory,
Peter Lieven <=
- [Qemu-devel] [PATCH V6 3/6] coroutine-ucontext: use helper for allocating stack memory, Peter Lieven, 2016/08/22
- [Qemu-devel] [PATCH V6 5/6] oslib-posix: add a configure switch to debug stack usage, Peter Lieven, 2016/08/22