Commit Graph

5 Commits

Author SHA1 Message Date
Paul Eggert 2642002380 Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
Adhemerval Zanella a2b0ff98a0 include/sys/cdefs.h: Add __attribute_optimization_barrier__
Add __attribute_optimization_barrier__ to disable inlining and cloning on a
function.  For Clang, expand it to

__attribute__ ((optnone))

Otherwise, expand it to

__attribute__ ((noinline, clone))

Co-Authored-By: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>
2024-12-23 06:28:55 +08:00
Paul Eggert dff8da6b3e Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
H.J. Lu 46432be2f1 tst-setcontext10.c: Undef _FORTIFY_SOURCE
When _FORTIFY_SOURCE is defined to 2, ____longjmp_chk is called,
instead of longjmp.  ____longjmp_chk compares the relative stack
values to decide if it is called from a stack frame which called
setjmp.  If not, ____longjmp_chk assumes that an alternate signal
stack is used.  Since comparing the relative stack values isn't
reliable with user context, when there is no signal, ____longjmp_chk
will fail.  Undefine _FORTIFY_SOURCE to avoid ____longjmp_chk in
user context test.
2023-12-19 13:39:34 -08:00
H.J. Lu 08bc191fd1 Add a test for longjmp from user context
Verify that longjmp works correctly after setcontext is called to switch
to a user context.
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
2023-12-16 08:38:48 -08:00