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authorH.J. Lu <hjl.tools@gmail.com>2017-08-21 05:58:39 -0700
committerH.J. Lu <hjl.tools@gmail.com>2017-08-21 05:58:53 -0700
commit41e673c1e771075f413f8e8ecd9e108f5ae096d9 (patch)
tree4a8c6a08878ca7a0d93ba7af9a6754a59de1b073
parent568ff4296c72534e49c8d9c83c33f3a0069cccc7 (diff)
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x86-64: Mark internal symbols with attribute_hidden [BZ #18822]
Since __syscall_clock_gettime and __start_context are internal symbols for Linux/x86-64, mark them with attribute_hidden. [BZ #18822] * sysdeps/unix/sysv/linux/x86_64/init-first.c (__syscall_clock_gettime): Add attribute_hidden. * sysdeps/unix/sysv/linux/x86_64/makecontext.c (__start_context): Likewise.
-rw-r--r--ChangeLog8
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/init-first.c2
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/makecontext.c2
3 files changed, 10 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog
index 8ff2d90..620bf81 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,13 @@
2017-08-21 H.J. Lu <hongjiu.lu@intel.com>
+ [BZ #18822]
+ * sysdeps/unix/sysv/linux/x86_64/init-first.c
+ (__syscall_clock_gettime): Add attribute_hidden.
+ * sysdeps/unix/sysv/linux/x86_64/makecontext.c
+ (__start_context): Likewise.
+
+2017-08-21 H.J. Lu <hongjiu.lu@intel.com>
+
* include/libc-symbols.h (__hidden_proto_hiddenattr): New for
building libc.a.
(hidden_proto): Likewise.
diff --git a/sysdeps/unix/sysv/linux/x86_64/init-first.c b/sysdeps/unix/sysv/linux/x86_64/init-first.c
index f1c46cb..b187239 100644
--- a/sysdeps/unix/sysv/linux/x86_64/init-first.c
+++ b/sysdeps/unix/sysv/linux/x86_64/init-first.c
@@ -27,7 +27,7 @@ long int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *)
long int (*VDSO_SYMBOL(getcpu)) (unsigned *, unsigned *, void *)
attribute_hidden;
-extern long int __syscall_clock_gettime (clockid_t, struct timespec *);
+extern __typeof (clock_gettime) __syscall_clock_gettime attribute_hidden;
static inline void
diff --git a/sysdeps/unix/sysv/linux/x86_64/makecontext.c b/sysdeps/unix/sysv/linux/x86_64/makecontext.c
index 59fb77a..e198a22 100644
--- a/sysdeps/unix/sysv/linux/x86_64/makecontext.c
+++ b/sysdeps/unix/sysv/linux/x86_64/makecontext.c
@@ -51,7 +51,7 @@
void
__makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...)
{
- extern void __start_context (void);
+ extern void __start_context (void) attribute_hidden;
greg_t *sp;
unsigned int idx_uc_link;
va_list ap;