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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>
Reviewed-By: Andreas K. Hüttel <dilfridge@gentoo.org>
This commit is contained in:
John David Anglin 2024-07-19 10:10:17 -04:00
parent 91eb62d638
commit 8cfa4ecff2
3 changed files with 4 additions and 4 deletions
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2
malloc/memusage.c
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@ -172,7 +172,7 @@ update_data (struct header *result, size_t len, size_t old_len)
start_sp = __thread_stack_pointer ();
uintptr_t sp = __thread_stack_pointer ();
#ifdef _STACK_GROWS_UP
#if _STACK_GROWS_UP
/* This can happen in threads where we didn't catch the thread's
stack early enough. */
if (__glibc_unlikely (sp < start_sp))

4
stdlib/tst-swapcontext2.c
View File

@ -85,7 +85,7 @@ do_test (void)
{
/* ____longjmp_chk has */
#if 0
#ifdef _STACK_GROWS_DOWN
#if _STACK_GROWS_DOWN
#define called_from(this, saved) ((this) < (saved))
#else
#define called_from(this, saved) ((this) > (saved))
@ -98,7 +98,7 @@ do_test (void)
/* Arrange stacks for uctx_func1 and uctx_func2 so that called_from
is true when setjmp is called from uctx_func1 and longjmp is called
from uctx_func2. */
#ifdef _STACK_GROWS_DOWN
#if _STACK_GROWS_DOWN
# define UCTX_FUNC1_STACK 1
# define UCTX_FUNC2_STACK 0
#else

2
sysdeps/unix/sysv/linux/____longjmp_chk.c
View File

@ -23,7 +23,7 @@
#include <stdio.h>
#include <stackinfo.h>
#ifdef _STACK_GROWS_DOWN
#if _STACK_GROWS_DOWN
#define called_from(this, saved) ((this) < (saved))
#else
#define called_from(this, saved) ((this) > (saved))