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