* [hurd,commited 0/2] hurd: Fix some ld.so overrides from libc
@ 2019-12-01 21:22 Samuel Thibault
2019-12-01 21:22 ` [hurd,commited 2/2] hurd: Fix ld.so __access override " Samuel Thibault
2019-12-01 21:22 ` [hurd,commited 1/2] hurd: Fix ld.so __getcwd " Samuel Thibault
0 siblings, 2 replies; 3+ messages in thread
From: Samuel Thibault @ 2019-12-01 21:22 UTC (permalink / raw)
To: libc-alpha; +Cc: Samuel Thibault, commit-hurd
ld.so symbols to be overriden by libc need to be extern to really get
overriden.
Samuel Thibault (2):
hurd: Fix ld.so __getcwd override from libc
hurd: Fix ld.so __access override from libc
include/unistd.h | 6 ++++--
io/access.c | 1 +
io/getcwd.c | 1 +
sysdeps/mach/hurd/Versions | 12 ++++++------
sysdeps/mach/hurd/access.c | 1 +
sysdeps/mach/hurd/getcwd.c | 1 +
sysdeps/mach/hurd/i386/localplt.data | 4 ++--
sysdeps/posix/getcwd.c | 1 +
sysdeps/unix/sysv/linux/access.c | 1 +
sysdeps/unix/sysv/linux/getcwd.c | 1 +
10 files changed, 19 insertions(+), 10 deletions(-)
--
2.24.0
^ permalink raw reply [flat|nested] 3+ messages in thread
* [hurd,commited 2/2] hurd: Fix ld.so __access override from libc
2019-12-01 21:22 [hurd,commited 0/2] hurd: Fix some ld.so overrides from libc Samuel Thibault
@ 2019-12-01 21:22 ` Samuel Thibault
2019-12-01 21:22 ` [hurd,commited 1/2] hurd: Fix ld.so __getcwd " Samuel Thibault
1 sibling, 0 replies; 3+ messages in thread
From: Samuel Thibault @ 2019-12-01 21:22 UTC (permalink / raw)
To: libc-alpha; +Cc: Samuel Thibault, commit-hurd
ld.so symbols to be overriden by libc need to be extern to really get
overriden. __access happens to have never been exposed, putting it to
GLIBC_PRIVATE.
---
include/unistd.h | 3 ++-
io/access.c | 1 +
sysdeps/mach/hurd/Versions | 8 ++++----
sysdeps/mach/hurd/access.c | 1 +
sysdeps/mach/hurd/i386/localplt.data | 2 +-
sysdeps/unix/sysv/linux/access.c | 1 +
6 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/include/unistd.h b/include/unistd.h
index dbfa53dd94..f48da2c7a3 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -25,7 +25,8 @@ 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 dc9fb9d5b2..9106a9f842 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/Versions b/sysdeps/mach/hurd/Versions
index dc199bfd66..9dee71efa3 100644
--- a/sysdeps/mach/hurd/Versions
+++ b/sysdeps/mach/hurd/Versions
@@ -1,7 +1,7 @@
libc {
GLIBC_2.0 {
# functions with a weak definition in the dynamic linker
- __access; __mmap;
+ __mmap;
}
GLIBC_2.2.6 {
# functions with a weak definition in the dynamic linker
@@ -9,7 +9,7 @@ libc {
}
GLIBC_PRIVATE {
# Functions shared with the dynamic linker
- __access_noerrno; __libc_read; __libc_write; __libc_lseek64;
+ __access; __access_noerrno; __libc_read; __libc_write; __libc_lseek64;
__libc_lock_self0; __sigprocmask; __getcwd;
_dl_init_first;
@@ -22,7 +22,7 @@ ld {
__hurd_threadvar_stack_mask; __hurd_threadvar_stack_offset;
# functions that must be shared with libc
- __access; __close; __getpid;
+ __close; __getpid;
__mmap; __open; __read; __sbrk; __strtoul_internal;
__write; __writev; __xstat64; __fxstat64;
_exit; _hurd_intr_rpc_mach_msg;
@@ -40,7 +40,7 @@ ld {
_dl_init_first;
# functions that must be shared with libc
- __access_noerrno; __libc_read; __libc_write; __libc_lseek64;
+ __access; __access_noerrno; __libc_read; __libc_write; __libc_lseek64;
__libc_lock_self0; __sigprocmask; __getcwd;
}
}
diff --git a/sysdeps/mach/hurd/access.c b/sysdeps/mach/hurd/access.c
index 2b5de8ea03..5072742352 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/localplt.data b/sysdeps/mach/hurd/i386/localplt.data
index 0c1cf0ffa9..b89e04b24a 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 690c99a856..f9fd6e64cf 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)
--
2.24.0
^ permalink raw reply [flat|nested] 3+ messages in thread
* [hurd,commited 1/2] hurd: Fix ld.so __getcwd override from libc
2019-12-01 21:22 [hurd,commited 0/2] hurd: Fix some ld.so overrides from libc Samuel Thibault
2019-12-01 21:22 ` [hurd,commited 2/2] hurd: Fix ld.so __access override " Samuel Thibault
@ 2019-12-01 21:22 ` Samuel Thibault
1 sibling, 0 replies; 3+ messages in thread
From: Samuel Thibault @ 2019-12-01 21:22 UTC (permalink / raw)
To: libc-alpha; +Cc: Samuel Thibault, commit-hurd
ld.so symbols to be overriden by libc need to be extern to really get
overriden. __getcwd happens to have never been exposed, putting it to
GLIBC_PRIVATE.
---
include/unistd.h | 3 ++-
io/getcwd.c | 1 +
sysdeps/mach/hurd/Versions | 8 ++++----
sysdeps/mach/hurd/getcwd.c | 1 +
sysdeps/mach/hurd/i386/localplt.data | 2 +-
sysdeps/posix/getcwd.c | 1 +
sysdeps/unix/sysv/linux/getcwd.c | 1 +
7 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/include/unistd.h b/include/unistd.h
index a043431ecf..dbfa53dd94 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -75,7 +75,8 @@ extern int __lchown (const char *__file, __uid_t __owner,
__gid_t __group);
extern int __chdir (const char *__path) attribute_hidden;
extern int __fchdir (int __fd) attribute_hidden;
-extern char *__getcwd (char *__buf, size_t __size) attribute_hidden;
+extern char *__getcwd (char *__buf, size_t __size);
+libc_hidden_proto (__getcwd)
extern int __rmdir (const char *__path) attribute_hidden;
extern int __execvpe (const char *file, char *const argv[],
char *const envp[]) attribute_hidden;
diff --git a/io/getcwd.c b/io/getcwd.c
index 9744a5fcdc..98e8cc164a 100644
--- a/io/getcwd.c
+++ b/io/getcwd.c
@@ -32,6 +32,7 @@ __getcwd (char *buf, size_t size)
__set_errno (ENOSYS);
return NULL;
}
+libc_hidden_def (__getcwd)
weak_alias (__getcwd, getcwd)
stub_warning (__getcwd)
diff --git a/sysdeps/mach/hurd/Versions b/sysdeps/mach/hurd/Versions
index c0b73cf0bf..dc199bfd66 100644
--- a/sysdeps/mach/hurd/Versions
+++ b/sysdeps/mach/hurd/Versions
@@ -1,7 +1,7 @@
libc {
GLIBC_2.0 {
# functions with a weak definition in the dynamic linker
- __access; __getcwd; __mmap;
+ __access; __mmap;
}
GLIBC_2.2.6 {
# functions with a weak definition in the dynamic linker
@@ -10,7 +10,7 @@ libc {
GLIBC_PRIVATE {
# Functions shared with the dynamic linker
__access_noerrno; __libc_read; __libc_write; __libc_lseek64;
- __libc_lock_self0; __sigprocmask;
+ __libc_lock_self0; __sigprocmask; __getcwd;
_dl_init_first;
}
@@ -22,7 +22,7 @@ ld {
__hurd_threadvar_stack_mask; __hurd_threadvar_stack_offset;
# functions that must be shared with libc
- __access; __close; __getcwd; __getpid;
+ __access; __close; __getpid;
__mmap; __open; __read; __sbrk; __strtoul_internal;
__write; __writev; __xstat64; __fxstat64;
_exit; _hurd_intr_rpc_mach_msg;
@@ -41,6 +41,6 @@ ld {
# functions that must be shared with libc
__access_noerrno; __libc_read; __libc_write; __libc_lseek64;
- __libc_lock_self0; __sigprocmask;
+ __libc_lock_self0; __sigprocmask; __getcwd;
}
}
diff --git a/sysdeps/mach/hurd/getcwd.c b/sysdeps/mach/hurd/getcwd.c
index 2757ac7ce8..4114991144 100644
--- a/sysdeps/mach/hurd/getcwd.c
+++ b/sysdeps/mach/hurd/getcwd.c
@@ -306,4 +306,5 @@ __getcwd (char *buf, size_t size)
buf, size));
return cwd;
}
+libc_hidden_def (__getcwd)
weak_alias (__getcwd, getcwd)
diff --git a/sysdeps/mach/hurd/i386/localplt.data b/sysdeps/mach/hurd/i386/localplt.data
index 1aef944337..0c1cf0ffa9 100644
--- a/sysdeps/mach/hurd/i386/localplt.data
+++ b/sysdeps/mach/hurd/i386/localplt.data
@@ -35,7 +35,7 @@ ld.so: __xstat64
#ld.so: __access
ld.so: __access_noerrno
ld.so: __getpid
-#ld.so: __getcwd
+ld.so: __getcwd
ld.so: __sbrk
ld.so: __strtoul_internal
#ld.so: _exit
diff --git a/sysdeps/posix/getcwd.c b/sysdeps/posix/getcwd.c
index 86fb366250..4a721c4cc6 100644
--- a/sysdeps/posix/getcwd.c
+++ b/sysdeps/posix/getcwd.c
@@ -531,5 +531,6 @@ __getcwd (char *buf, size_t size)
}
#if defined _LIBC && !defined __getcwd
+libc_hidden_def (__getcwd)
weak_alias (__getcwd, getcwd)
#endif
diff --git a/sysdeps/unix/sysv/linux/getcwd.c b/sysdeps/unix/sysv/linux/getcwd.c
index eec986e699..c031e1ff5a 100644
--- a/sysdeps/unix/sysv/linux/getcwd.c
+++ b/sysdeps/unix/sysv/linux/getcwd.c
@@ -127,6 +127,7 @@ __getcwd (char *buf, size_t size)
return NULL;
}
+libc_hidden_def (__getcwd)
weak_alias (__getcwd, getcwd)
/* Get the code for the generic version. */
--
2.24.0
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-12-01 21:22 ` [hurd,commited 1/2] hurd: Fix ld.so __getcwd " Samuel Thibault
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