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authorFlorian Weimer <fweimer@redhat.com>2022-11-03 17:28:03 +0100
committerFlorian Weimer <fweimer@redhat.com>2022-11-03 17:28:03 +0100
commit1f34a2328890aa192141f96449d25b77f666bf47 (patch)
tree283ca2a4b46cf069da45f40663e779003064bcdc /sysdeps/aarch64
parentfb6ee7ba8122330ac819556a42cc56db07d9da76 (diff)
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elf: Introduce <dl-call_tls_init_tp.h> and call_tls_init_tp (bug 29249)
This makes it more likely that the compiler can compute the strlen
argument in _startup_fatal at compile time, which is required to
avoid a dependency on strlen this early during process startup.

Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Diffstat (limited to 'sysdeps/aarch64')
-rw-r--r--sysdeps/aarch64/nptl/tls.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/sysdeps/aarch64/nptl/tls.h b/sysdeps/aarch64/nptl/tls.h
index 08aa2eff89..6fe084c1ef 100644
--- a/sysdeps/aarch64/nptl/tls.h
+++ b/sysdeps/aarch64/nptl/tls.h
@@ -72,7 +72,7 @@ typedef struct
    special attention since 'errno' is not yet available and if the
    operation can cause a failure 'errno' must not be touched.  */
 # define TLS_INIT_TP(tcbp) \
-  ({ __asm __volatile ("msr tpidr_el0, %0" : : "r" (tcbp)); NULL; })
+  ({ __asm __volatile ("msr tpidr_el0, %0" : : "r" (tcbp)); true; })
 
 /* Value passed to 'clone' for initialization of the thread register.  */
 # define TLS_DEFINE_INIT_TP(tp, pd) void *tp = (pd) + 1