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From a30d62dfb9ea30af58ef331fae1e6f727d0558c0 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Tue, 4 May 2021 10:32:08 -0700
Subject: [PATCH] examples/ucontext-cp.c: Do not use SIGSTKSZ
glibc 2.34 has removed SIGSTKSZ therefore we replace it
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
examples/ucontext-cp.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
--- a/examples/ucontext-cp.c
+++ b/examples/ucontext-cp.c
@@ -3,6 +3,7 @@
* gcc -Wall -O2 -D_GNU_SOURCE -o ucontext-cp ucontext-cp.c -luring
*/
#define _POSIX_C_SOURCE 199309L
+#include <stddef.h>
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
@@ -22,13 +23,9 @@
#define QD 64
#define BS 1024
-#ifndef SIGSTKSZ
-#define SIGSTKSZ 8192
-#endif
-
typedef struct {
struct io_uring *ring;
- unsigned char stack_buf[SIGSTKSZ];
+ max_align_t stack_buf[(8 * 1024 + sizeof (max_align_t) - 1) / sizeof (max_align_t)];
ucontext_t ctx_main, ctx_fnew;
} async_context;
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