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Add configure check for gettid() presence

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The gettid() function is available on Linux in glibc only since version
2.30. There are supported distributions that still use older glibc
version. Thus add a configure check if the gettid() function is
available and extend the check in src/prof_stack_range.c so it's skipped
also when gettid() isn't available.

Fixes: https://github.com/jemalloc/jemalloc/issues/2740
This commit is contained in:
Dan Horák
2024-11-08 15:34:06 +00:00
committed by Qi Wang
parent 4b88bddbca
commit 17881ebbfd
2 changed files with 10 additions and 1 deletions
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9
configure.ac
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@@ -2706,6 +2706,15 @@ if test "x${je_cv_pthread_mutex_adaptive_np}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_PTHREAD_MUTEX_ADAPTIVE_NP], [ ], [ ])
fi
JE_COMPILABLE([gettid], [
#include <unistd.h>
], [
int tid = gettid();
], [je_cv_gettid])
if test "x${je_cv_gettid}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_GETTID], [ ], [ ])
fi
JE_CFLAGS_SAVE()
JE_CFLAGS_ADD([-D_GNU_SOURCE])
JE_CFLAGS_ADD([-Werror])