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[28/58] Hide internal __malloc_check_init function [BZ #18822]

Message ID 20170901180029.9527-29-hjl.tools@gmail.com
State Committed, archived
Headers

Commit Message

H.J. Lu Sept. 1, 2017, 5:59 p.m. UTC 
  Hide internal __malloc_check_init function to allow direct access within
libc.so and libc.a without using GOT nor PLT.

	* include/malloc.h (__malloc_check_init): Add attribute_hidden.
---
 include/malloc.h | 2 ++
 1 file changed, 2 insertions(+)

Comments

H.J. Lu Oct. 1, 2017, 10:32 p.m. UTC | #1 
On 9/1/17, H.J. Lu <hjl.tools@gmail.com> wrote:
> Hide internal __malloc_check_init function to allow direct access within
> libc.so and libc.a without using GOT nor PLT.
>
> 	* include/malloc.h (__malloc_check_init): Add attribute_hidden.

Tested with build-many-glibcs.py.  I am checking it in.
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Patch

diff --git a/include/malloc.h b/include/malloc.h
index 70d32c7c84..d4cd9a5ffc 100644
--- a/include/malloc.h
+++ b/include/malloc.h
@@ -9,6 +9,8 @@ 
 /* Nonzero if the malloc is already initialized.  */
 extern int __malloc_initialized attribute_hidden;
 
+extern __typeof (__malloc_check_init) __malloc_check_init attribute_hidden;
+
 struct malloc_state;
 typedef struct malloc_state *mstate;