lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-08-01 10:06:57 +03:00
Code Activity

support: Link links-dso-program-c against libgcc_s

Browse Source 
If C++ support is not available, links-dso-program-c is used
instead of the C++ version.  The C version was not linked against
libgcc_s, which meant that thread cancellation and the backtrace
function did not work in containers tests in that situation.

Reviewed-by: Sam James <sam@gentoo.org>
This commit is contained in:
Florian Weimer
2025-03-21 10:33:25 +01:00
parent 090dfa40a5
commit 3e2be87832
2 changed files with 22 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
support/links-dso-program-c.c
View File

@ -1,4 +1,5 @@
#include <stdio.h>
#include <dlfcn.h>
/* makedb needs selinux dso's. */
#ifdef HAVE_SELINUX
@ -13,6 +14,20 @@
such dependencies.
*/
/* Use attribute cleanup to force linking against libgcc_s. */
static void
cleanup_function (int *ignored)
{
puts ("cleanup performed");
}
void
invoke_callback (void (*callback) (int *))
{
__attribute__ ((cleanup (cleanup_function))) int i = 0;
callback (&i);
}
int
main (int argc, char **argv)
{
@ -22,5 +37,10 @@ main (int argc, char **argv)
/* This exists to force libselinux.so to be required. */
printf ("selinux %d\n", is_selinux_enabled ());
#endif
/* Prevent invoke_callback from being optimized away. */
{
Dl_info dli;
dladdr (invoke_callback, &dli);
}
return 0;
}