For ARCH where shared lib are not supported:
- SHARED is not set (!SHARED is true)
- __ARCH_HAS_NO_LDSO__ is set
so code inside #if !defined __ARCH_HAS_NO_LDSO__ && !defined SHARED
is compiled-out.
But without a call do _dl_aux_init(), _dl_phdr stays NULL and
__libc_setup_tls won't be able to allocate memory for the in-executable TLS
and also won't be able to load the initimage from ELF TLS segment.
This results in segfault when doing things like "errno = 0" like
in tst-cancel15.c for instance in uClibc-ng testsuite.
Signed-off-by: Yann Sionneau <ysionn...@kalray.eu>
---
libc/misc/internals/__uClibc_main.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libc/misc/internals/__uClibc_main.c
b/libc/misc/internals/__uClibc_main.c
index 849bca8..affa0ce 100644
--- a/libc/misc/internals/__uClibc_main.c
+++ b/libc/misc/internals/__uClibc_main.c
@@ -370,7 +370,7 @@ void __uClibc_main(int (*main)(int, char **, char **), int
argc,
char **argv, void (*app_init)(void), void (*app_fini)(void),
void (*rtld_fini)(void), void *stack_end attribute_unused)
{
-#if !defined __ARCH_HAS_NO_LDSO__ && !defined SHARED
+#ifndef SHARED
unsigned long *aux_dat;
ElfW(auxv_t) auxvt[AT_EGID + 1];
#endif
@@ -396,7 +396,7 @@ void __uClibc_main(int (*main)(int, char **, char **), int
argc,
__environ = &argv[argc];
}
-#if !defined __ARCH_HAS_NO_LDSO__ && !defined SHARED
+#ifndef SHARED
/* Pull stuff from the ELF header when possible */
memset(auxvt, 0x00, sizeof(auxvt));
aux_dat = (unsigned long*)__environ;
--
1.8.3.1
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