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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2016-12-02 16:32:28 -0200
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2017-06-23 17:38:17 -0300
commitfa872e1b6210e81e60d6029429f0a083b8eab26e (patch)
tree658bfebcc8b71d0def38f50210f75fc4eba055fa /sysdeps
parent06a5b8f7994c241dccfaebd5c08c3e06a2dedb8f (diff)
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Clean pthread functions namespaces for C11 threads
This patch adds internal definition (through {libc_}hidden_{proto,def}) and also change some strong to weak alias for symbols that might be used by C11 threads implementations. The patchset should not change libc/libpthread functional, although object changes are expected (since now internal symbols are used instead) and final exported symbols through GLIBC_PRIVATE is also expanded (to cover libpthread usage of __mmap{64}, __munmap, __mprotect). Checked with a build for all major ABI (aarch64-linux-gnu, alpha-linux-gnu, arm-linux-gnueabi, i386-linux-gnu, ia64-linux-gnu, m68k-linux-gnu, microblaze-linux-gnu [1], mips{64}-linux-gnu, nios2-linux-gnu, powerpc{64le}-linux-gnu, s390{x}-linux-gnu, sparc{64}-linux-gnu, tile{pro,gx}-linux-gnu, and x86_64-linux-gnu). * include/sched.h (__sched_get_priority_max): Add libc hidden proto. (__sched_get_prioriry_min): Likewise. * include/sys/mman.h (__mmap): Likewise. (__mmap64): Likewise. (__munmap): Likewise. (__mprotect): Likewise. * include/termios.h (__tcsetattr): Likewise. * include/time.h (__nanosleep): Use hidden_proto instead of libc_hidden_proto. * posix/nanosleep.c (__nanosleep): Likewise. * misc/Versions (libc): Export __mmap, __munmap, __mprotect, __sched_get_priority_min, and __sched_get_priority_max under GLIBC_PRIVATE. * nptl/allocatestack.c (__free_stacks): Use internal definition for libc symbols. (change_stack_perm): Likewise. (allocate_stack): Likewise. * sysdeps/posix/gethostname.c: Likewise. * nptl/tpp.c (__init_sched_fifo_prio): Likewise. * sysdeps/unix/sysv/linux/i386/smp.h (is_smp_system): Likewise. * sysdeps/unix/sysv/linux/powerpc/ioctl.c (__ioctl): Likewise. * nptl/pthreadP.h (__pthread_mutex_timedlock): Add definition. (__pthread_key_delete): Likewise. (__pthread_detach): Likewise. (__pthread_cancel): Likewise. (__pthread_mutex_trylock): Likewise. (__pthread_mutexattr_init): Likewise. (__pthread_mutexattr_settype): Likewise. * nptl/pthread_cancel.c (pthread_cancel): Change to internal name and create alias for exported one. * nptl/pthread_join.c (pthread_join): Likewise. * nptl/pthread_detach.c (pthread_detach): Likewise. * nptl/pthread_key_delete.c (pthread_key_delete): Likewise. * nptl/pthread_mutex_timedlock.c (pthread_mutex_timedlock): Likewise. * nptl/pthread_create.c: Change static requirements for pthread symbols. * nptl/pthread_equal.c (__pthread_equal): Change strong alias to weak for internal definition. * nptl/pthread_exit.c (__pthread_exit): Likewise. * nptl/pthread_getspecific.c (__pthread_getspecific): Likewise. * nptl/pthread_key_create.c (__pthread_key_create): Likewise. * nptl/pthread_mutex_destroy.c (__pthread_mutex_destroy): Likewise. * nptl/pthread_mutex_init.c (__pthread_mutex_init): Likewise. * nptl/pthread_mutex_lock.c (__pthread_mutex_lock): Likewise. * nptl/pthread_mutex_trylock.c (__pthread_mutex_trylock): Likewise. * nptl/pthread_mutex_unlock.c (__pthread_mutex_unlock): Likewise. * nptl/pthread_mutexattr_init.c (__pthread_mutexattr_init): Likwise. * nptl/pthread_mutexattr_settype.c (__pthread_mutexattr_settype): Likewise. * nptl/pthread_self.c (__pthread_self): Likewise. * nptl/pthread_setspecific.c (__pthread_setspecific): Likewise. * sysdeps/unix/sysv/linux/tcsetattr.c (tcsetattr): Likewise. * misc/mmap.c (__mmap): Add internal symbol definition. * misc/mmap.c (__mmap64): Likewise. * sysdeps/unix/sysv/linux/mmap.c (__mmap): Likewise. * sysdeps/unix/sysv/linux/mmap64.c (__mmap): Likewise. (__mmap64): Likewise. * sysdeps/unix/sysv/linux/i386/Versions (libc) [GLIBC_PRIVATE): Add __uname.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/posix/gethostname.c2
-rw-r--r--sysdeps/unix/sysv/linux/i386/Versions2
-rw-r--r--sysdeps/unix/sysv/linux/i386/smp.h2
-rw-r--r--sysdeps/unix/sysv/linux/mmap.c1
-rw-r--r--sysdeps/unix/sysv/linux/mmap64.c2
-rw-r--r--sysdeps/unix/sysv/linux/nanosleep.c2
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/ioctl.c6
-rw-r--r--sysdeps/unix/sysv/linux/tcsetattr.c3
8 files changed, 12 insertions, 8 deletions
diff --git a/sysdeps/posix/gethostname.c b/sysdeps/posix/gethostname.c
index 03a5d3f..a132482 100644
--- a/sysdeps/posix/gethostname.c
+++ b/sysdeps/posix/gethostname.c
@@ -29,7 +29,7 @@ __gethostname (char *name, size_t len)
struct utsname buf;
size_t node_len;
- if (uname (&buf))
+ if (__uname (&buf))
return -1;
node_len = strlen (buf.nodename) + 1;
diff --git a/sysdeps/unix/sysv/linux/i386/Versions b/sysdeps/unix/sysv/linux/i386/Versions
index f3544ac..b59ace4 100644
--- a/sysdeps/unix/sysv/linux/i386/Versions
+++ b/sysdeps/unix/sysv/linux/i386/Versions
@@ -46,6 +46,6 @@ libc {
fallocate64;
}
GLIBC_PRIVATE {
- __modify_ldt;
+ __modify_ldt; __uname;
}
}
diff --git a/sysdeps/unix/sysv/linux/i386/smp.h b/sysdeps/unix/sysv/linux/i386/smp.h
index 7d1a7f2..3109ea9 100644
--- a/sysdeps/unix/sysv/linux/i386/smp.h
+++ b/sysdeps/unix/sysv/linux/i386/smp.h
@@ -36,7 +36,7 @@ is_smp_system (void)
char *cp;
/* Try reading the number using `sysctl' first. */
- if (uname (&u.uts) == 0)
+ if (__uname (&u.uts) == 0)
cp = u.uts.version;
else
{
diff --git a/sysdeps/unix/sysv/linux/mmap.c b/sysdeps/unix/sysv/linux/mmap.c
index b1f229f..98c2f88 100644
--- a/sysdeps/unix/sysv/linux/mmap.c
+++ b/sysdeps/unix/sysv/linux/mmap.c
@@ -47,5 +47,6 @@ __mmap (void *addr, size_t len, int prot, int flags, int fd, off_t offset)
#endif
}
weak_alias (__mmap, mmap)
+libc_hidden_def (__mmap)
#endif /* __OFF_T_MATCHES_OFF64_T */
diff --git a/sysdeps/unix/sysv/linux/mmap64.c b/sysdeps/unix/sysv/linux/mmap64.c
index d3ea279..e8d519b 100644
--- a/sysdeps/unix/sysv/linux/mmap64.c
+++ b/sysdeps/unix/sysv/linux/mmap64.c
@@ -53,8 +53,10 @@ __mmap64 (void *addr, size_t len, int prot, int flags, int fd, off64_t offset)
#endif
}
weak_alias (__mmap64, mmap64)
+libc_hidden_def (__mmap64)
#ifdef __OFF_T_MATCHES_OFF64_T
weak_alias (__mmap64, mmap)
weak_alias (__mmap64, __mmap)
+libc_hidden_def (__mmap)
#endif
diff --git a/sysdeps/unix/sysv/linux/nanosleep.c b/sysdeps/unix/sysv/linux/nanosleep.c
index b352f84..2d15328 100644
--- a/sysdeps/unix/sysv/linux/nanosleep.c
+++ b/sysdeps/unix/sysv/linux/nanosleep.c
@@ -26,5 +26,5 @@ __nanosleep (const struct timespec *requested_time,
{
return SYSCALL_CANCEL (nanosleep, requested_time, remaining);
}
-libc_hidden_def (__nanosleep)
+hidden_def (__nanosleep)
weak_alias (__nanosleep, nanosleep)
diff --git a/sysdeps/unix/sysv/linux/powerpc/ioctl.c b/sysdeps/unix/sysv/linux/powerpc/ioctl.c
index e2e3d33..1437d1d 100644
--- a/sysdeps/unix/sysv/linux/powerpc/ioctl.c
+++ b/sysdeps/unix/sysv/linux/powerpc/ioctl.c
@@ -41,15 +41,15 @@ __ioctl (int fd, unsigned long int request, ...)
break;
case TCSETS:
- result = tcsetattr (fd, TCSANOW, (struct termios *) arg);
+ result = __tcsetattr (fd, TCSANOW, (struct termios *) arg);
break;
case TCSETSW:
- result = tcsetattr (fd, TCSADRAIN, (struct termios *) arg);
+ result = __tcsetattr (fd, TCSADRAIN, (struct termios *) arg);
break;
case TCSETSF:
- result = tcsetattr (fd, TCSAFLUSH, (struct termios *) arg);
+ result = __tcsetattr (fd, TCSAFLUSH, (struct termios *) arg);
break;
default:
diff --git a/sysdeps/unix/sysv/linux/tcsetattr.c b/sysdeps/unix/sysv/linux/tcsetattr.c
index c7d1d65..49acd16 100644
--- a/sysdeps/unix/sysv/linux/tcsetattr.c
+++ b/sysdeps/unix/sysv/linux/tcsetattr.c
@@ -41,7 +41,7 @@
/* Set the state of FD to *TERMIOS_P. */
int
-tcsetattr (int fd, int optional_actions, const struct termios *termios_p)
+__tcsetattr (int fd, int optional_actions, const struct termios *termios_p)
{
struct __kernel_termios k_termios;
unsigned long int cmd;
@@ -77,4 +77,5 @@ tcsetattr (int fd, int optional_actions, const struct termios *termios_p)
return INLINE_SYSCALL (ioctl, 3, fd, cmd, &k_termios);
}
+weak_alias (__tcsetattr, tcsetattr)
libc_hidden_def (tcsetattr)