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59 lines
2.1 KiB
59 lines
2.1 KiB
1 month ago
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commit f6a75fddf4e71545c63dfcad99cc2df9bac38093
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Author: John David Anglin <danglin@gcc.gnu.org>
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Date: Fri Jul 19 10:10:17 2024 -0400
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Fix usage of _STACK_GROWS_DOWN and _STACK_GROWS_UP defines [BZ 31989]
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Signed-off-by: John David Anglin <dave.anglin@bell.net>
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Reviewed-By: Andreas K. Hüttel <dilfridge@gentoo.org>
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(cherry picked from commit 8cfa4ecff21adf226984f135aa576dd8063bbba3)
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diff --git a/malloc/memusage.c b/malloc/memusage.c
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index e8ae80dc74af4585..f80225b95a36707b 100644
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--- a/malloc/memusage.c
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+++ b/malloc/memusage.c
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@@ -172,7 +172,7 @@ update_data (struct header *result, size_t len, size_t old_len)
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start_sp = __thread_stack_pointer ();
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uintptr_t sp = __thread_stack_pointer ();
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-#ifdef _STACK_GROWS_UP
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+#if _STACK_GROWS_UP
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/* This can happen in threads where we didn't catch the thread's
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stack early enough. */
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if (__glibc_unlikely (sp < start_sp))
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diff --git a/stdlib/tst-swapcontext2.c b/stdlib/tst-swapcontext2.c
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index f679755649809653..a9c1dc827cb897f3 100644
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--- a/stdlib/tst-swapcontext2.c
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+++ b/stdlib/tst-swapcontext2.c
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@@ -85,7 +85,7 @@ do_test (void)
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{
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/* ____longjmp_chk has */
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#if 0
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-#ifdef _STACK_GROWS_DOWN
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+#if _STACK_GROWS_DOWN
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#define called_from(this, saved) ((this) < (saved))
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#else
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#define called_from(this, saved) ((this) > (saved))
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@@ -98,7 +98,7 @@ do_test (void)
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/* Arrange stacks for uctx_func1 and uctx_func2 so that called_from
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is true when setjmp is called from uctx_func1 and longjmp is called
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from uctx_func2. */
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-#ifdef _STACK_GROWS_DOWN
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+#if _STACK_GROWS_DOWN
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# define UCTX_FUNC1_STACK 1
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# define UCTX_FUNC2_STACK 0
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#else
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diff --git a/sysdeps/unix/sysv/linux/____longjmp_chk.c b/sysdeps/unix/sysv/linux/____longjmp_chk.c
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index 0896dc5755dfa1db..3c66a4638eedbbea 100644
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--- a/sysdeps/unix/sysv/linux/____longjmp_chk.c
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+++ b/sysdeps/unix/sysv/linux/____longjmp_chk.c
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@@ -23,7 +23,7 @@
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#include <stdio.h>
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#include <stackinfo.h>
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-#ifdef _STACK_GROWS_DOWN
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+#if _STACK_GROWS_DOWN
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#define called_from(this, saved) ((this) < (saved))
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#else
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#define called_from(this, saved) ((this) > (saved))
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