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[PATCH 1/2] hurd: Fix some ld.so symbol override from libc
- From: Samuel Thibault <samuel dot thibault at ens-lyon dot org>
- To: libc-alpha at sourceware dot org
- Cc: Samuel Thibault <samuel dot thibault at ens-lyon dot org>
- Date: Sat, 28 Jul 2018 16:27:57 +0200
- Subject: [PATCH 1/2] hurd: Fix some ld.so symbol override from libc
- References: <20180728142758.32338-1-samuel.thibault@ens-lyon.org>
ld.so symbols to be overriden by libc need to be extern to really get
overriden.
* include/unistd.h (__access): Set libc_hidden_proto instead of
attribute_hidden.
* io/access.c (__access): Set libc_hidden_def.
* sysdeps/mach/hurd/access.c (__access): Likewise.
* sysdeps/unix/sysv/linux/access.c (__access): Likewise.
* sysdeps/mach/hurd/i386/libc.abilist: Update accordingly.
* sysdeps/mach/hurd/i386/ld.abilist: Update accordingly.
* sysdeps/mach/hurd/i386/localplt.data: Update accordingly.
---
ChangeLog | 6 ++++++
include/unistd.h | 3 ++-
io/access.c | 1 +
sysdeps/mach/hurd/access.c | 1 +
sysdeps/mach/hurd/i386/ld.abilist | 1 +
sysdeps/mach/hurd/i386/libc.abilist | 1 +
sysdeps/mach/hurd/i386/localplt.data | 2 +-
sysdeps/unix/sysv/linux/access.c | 1 +
8 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 5f82d00b69..dfe30c416c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -3,6 +3,12 @@
* sysdeps/mach/hurd/dl-unistd.h (__access, __brk, __lseek, __read,
__sbrk): Do not set attribute_hidden.
* sysdeps/mach/hurd/not-errno.h: New file.
+ * include/unistd.h (__access): Set libc_hidden_proto instead of
+ attribute_hidden.
+ * io/access.c (__access): Set libc_hidden_def.
+ * sysdeps/mach/hurd/access.c (__access): Likewise.
+ * sysdeps/unix/sysv/linux/access.c (__access): Likewise.
+ * sysdeps/mach/hurd/i386/libc.abilist: Update accordingly.
* sysdeps/mach/hurd/i386/ld.abilist: Update accordingly.
* sysdeps/mach/hurd/i386/localplt.data: Update accordingly.
diff --git a/include/unistd.h b/include/unistd.h
index a171b00326..f1bdabebb2 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -23,7 +23,8 @@ libc_hidden_proto (tcgetpgrp)
libc_hidden_proto (readlinkat)
/* Now define the internal interfaces. */
-extern int __access (const char *__name, int __type) attribute_hidden;
+extern int __access (const char *__name, int __type);
+libc_hidden_proto (__access)
extern int __euidaccess (const char *__name, int __type);
extern int __faccessat (int __fd, const char *__file, int __type, int __flag);
extern int __faccessat_noerrno (int __fd, const char *__file, int __type,
diff --git a/io/access.c b/io/access.c
index 7130264ed7..4a3fbe674b 100644
--- a/io/access.c
+++ b/io/access.c
@@ -39,6 +39,7 @@ __access (const char *file, int type)
__set_errno (ENOSYS);
return -1;
}
+libc_hidden_def (__access)
stub_warning (access)
weak_alias (__access, access)
diff --git a/sysdeps/mach/hurd/access.c b/sysdeps/mach/hurd/access.c
index 31fd5bea56..56b97128d9 100644
--- a/sysdeps/mach/hurd/access.c
+++ b/sysdeps/mach/hurd/access.c
@@ -35,4 +35,5 @@ __access (const char *file, int type)
{
return __faccessat (AT_FDCWD, file, type, 0);
}
+libc_hidden_def (__access)
weak_alias (__access, access)
diff --git a/sysdeps/mach/hurd/i386/ld.abilist b/sysdeps/mach/hurd/i386/ld.abilist
index c76b913486..8b7be44dde 100644
--- a/sysdeps/mach/hurd/i386/ld.abilist
+++ b/sysdeps/mach/hurd/i386/ld.abilist
@@ -1,3 +1,4 @@
+GLIBC_2.2.6 __access F
GLIBC_2.2.6 __close F
GLIBC_2.2.6 __errno_location F
GLIBC_2.2.6 __fxstat64 F
diff --git a/sysdeps/mach/hurd/i386/libc.abilist b/sysdeps/mach/hurd/i386/libc.abilist
index 64586d828d..6e26654d85 100644
--- a/sysdeps/mach/hurd/i386/libc.abilist
+++ b/sysdeps/mach/hurd/i386/libc.abilist
@@ -211,6 +211,7 @@ GLIBC_2.2.6 _S_msg_set_init_ports F
GLIBC_2.2.6 _S_msg_sig_post F
GLIBC_2.2.6 _S_msg_sig_post_untraced F
GLIBC_2.2.6 ___brk_addr D 0x4
+GLIBC_2.2.6 __access F
GLIBC_2.2.6 __after_morecore_hook D 0x4
GLIBC_2.2.6 __argz_count F
GLIBC_2.2.6 __argz_next F
diff --git a/sysdeps/mach/hurd/i386/localplt.data b/sysdeps/mach/hurd/i386/localplt.data
index a5b5241b84..1c54993ac7 100644
--- a/sysdeps/mach/hurd/i386/localplt.data
+++ b/sysdeps/mach/hurd/i386/localplt.data
@@ -32,7 +32,7 @@ ld.so: __libc_lseek64
ld.so: __mmap
ld.so: __fxstat64
ld.so: __xstat64
-#ld.so: __access
+ld.so: __access
ld.so: __access_noerrno
ld.so: __getpid
#ld.so: __getcwd
diff --git a/sysdeps/unix/sysv/linux/access.c b/sysdeps/unix/sysv/linux/access.c
index 2da8e68f47..4fc122e48f 100644
--- a/sysdeps/unix/sysv/linux/access.c
+++ b/sysdeps/unix/sysv/linux/access.c
@@ -29,4 +29,5 @@ __access (const char *file, int type)
return INLINE_SYSCALL_CALL (faccessat, AT_FDCWD, file, type);
#endif
}
+libc_hidden_def (__access)
weak_alias (__access, access)
--
2.18.0