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From af8b2d71ce37b9d4d24ddbc755cdea68de02949a Mon Sep 17 00:00:00 2001
From: Peter Korsgaard <jacmet@sunsite.dk>
Date: Mon, 5 Jul 2010 14:08:17 +0200
Subject: [PATCH] don't make __errno_location / __h_errno_location hidden
Closes #2089 (https://bugs.busybox.net/show_bug.cgi?id=2089)
__errno_location / __h_errno_location access has to go through the PLT
like malloc/free, so the linuxthread variants gets used instead when
compiling with -pthread.
Based on http://github.com/mat-c/uClibc/commit/328d392c54aa5dc2b8e7f398a419087de497de2b
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
---
include/netdb.h | 1 -
libc/misc/internals/__errno_location.c | 3 ---
libc/misc/internals/__h_errno_location.c | 1 -
libc/sysdeps/linux/common/bits/errno.h | 1 -
6 files changed, 0 insertions(+), 11 deletions(-)
diff --git a/include/netdb.h b/include/netdb.h
index 9d3807d..ac411ab 100644
--- a/include/netdb.h
+++ b/include/netdb.h
@@ -59,7 +59,6 @@ __BEGIN_DECLS
/* Function to get address of global `h_errno' variable. */
extern int *__h_errno_location (void) __THROW __attribute__ ((__const__));
-libc_hidden_proto(__h_errno_location)
/* Macros for accessing h_errno from inside libc. */
#ifdef _LIBC
diff --git a/libc/misc/internals/__errno_location.c b/libc/misc/internals/__errno_location.c
index 487a9c2..0620860 100644
--- a/libc/misc/internals/__errno_location.c
+++ b/libc/misc/internals/__errno_location.c
@@ -15,6 +15,3 @@ int * weak_const_function __errno_location (void)
{
return &errno;
}
-#ifdef IS_IN_libc /* not really need, only to keep in sync w/ libc_hidden_proto */
-libc_hidden_weak(__errno_location)
-#endif
diff --git a/libc/misc/internals/__h_errno_location.c b/libc/misc/internals/__h_errno_location.c
index 213d398..235df4e 100644
--- a/libc/misc/internals/__h_errno_location.c
+++ b/libc/misc/internals/__h_errno_location.c
@@ -10,4 +10,3 @@ int * weak_const_function __h_errno_location (void)
{
return &h_errno;
}
-libc_hidden_weak(__h_errno_location)
diff --git a/libc/misc/internals/__uClibc_main.c b/libc/misc/internals/__uClibc_main.c
index 6e520fa..f4a9ebb 100644
--- a/libc/sysdeps/linux/common/bits/errno.h
+++ b/libc/sysdeps/linux/common/bits/errno.h
@@ -43,7 +43,6 @@
# ifndef __ASSEMBLER__
/* Function to get address of global `errno' variable. */
extern int *__errno_location (void) __THROW __attribute__ ((__const__));
-libc_hidden_proto(__errno_location)
# ifdef __UCLIBC_HAS_THREADS__
/* When using threads, errno is a per-thread value. */
--
1.7.1
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