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authorCarmelo Amoroso <carmelo.amoroso@st.com>2010-09-20 15:03:17 +0200
committerCarmelo Amoroso <carmelo.amoroso@st.com>2010-09-20 15:03:17 +0200
commit0f85b228aa3f5ea797e10e69deae54ea898cb44a (patch)
tree4e58a45cacf954d7f7ca1d3ecb8519cec99ab10f
parentef65e97083363ffaeeb5fcf3a37d074b74eafb0d (diff)
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nptl: Fix libpthread build when UCLIBC_LINUX_SPECIFIC is disabled
NPTL library needs both madvise and statfs symbols, that are guarded by UCLIBC_LINUX_SPECIFIC option. This fix provides these symbols too when NPTL is used, indipendently by UCLIBC_LINUX_SPECIFIC choice. Otherwise libpthread link fails as below: LD libpthread-0.9.32-git.so libpthread/nptl/libpthread_so.a(pthread_create.oS): In function `__free_tcb': pthread_create.c:(.text+0x1184): undefined reference to `madvise' libpthread/nptl/libpthread_so.a(sem_open.oS): In function `__where_is_shmfs': sem_open.c:(.text+0x764): undefined reference to `statfs' collect2: ld returned 1 exit status make: *** [lib/libpthread.so] Error 1 Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
-rw-r--r--include/sys/mman.h2
-rw-r--r--libc/sysdeps/linux/common/Makefile.in6
-rw-r--r--libc/sysdeps/linux/common/statfs.c3
3 files changed, 8 insertions, 3 deletions
diff --git a/include/sys/mman.h b/include/sys/mman.h
index d46b92258..470209ed5 100644
--- a/include/sys/mman.h
+++ b/include/sys/mman.h
@@ -100,7 +100,7 @@ static __inline__ int msync (void *__addr, size_t __len, int __flags) { return 0
#endif
-#if defined __USE_BSD && defined __UCLIBC_LINUX_SPECIFIC__
+#if defined __USE_BSD && (defined __UCLIBC_LINUX_SPECIFIC__ || defined __UCLIBC_HAS_THREADS_NATIVE__)
/* Advise the system about particular usage patterns the program follows
for the region starting at ADDR and extending LEN bytes. */
extern int madvise (void *__addr, size_t __len, int __advice) __THROW;
diff --git a/libc/sysdeps/linux/common/Makefile.in b/libc/sysdeps/linux/common/Makefile.in
index 1711e8025..4222912fc 100644
--- a/libc/sysdeps/linux/common/Makefile.in
+++ b/libc/sysdeps/linux/common/Makefile.in
@@ -26,12 +26,16 @@ endif
ifneq ($(UCLIBC_LINUX_SPECIFIC),y)
# we need these internally: fstatfs.c statfs.c
-CSRC := $(filter-out capget.c capset.c inotify.c ioperm.c iopl.c madvise.c \
+CSRC := $(filter-out capget.c capset.c inotify.c ioperm.c iopl.c \
modify_ldt.c personality.c ppoll.c prctl.c readahead.c reboot.c \
remap_file_pages.c sched_getaffinity.c sched_setaffinity.c \
sendfile64.c sendfile.c setfsgid.c setfsuid.c setresuid.c \
splice.c vmsplice.c tee.c signalfd.c swapoff.c swapon.c \
sync_file_range.c sysctl.c sysinfo.c timerfd.c uselib.c vhangup.c,$(CSRC))
+ifneq ($(UCLIBC_HAS_THREADS_NATIVE),y)
+# we need madvise.c in NPTL
+CSRC := $(filter-pout madvise.c,$(CSRC))
+endif
endif
ifeq ($(UCLIBC_HAS_THREADS_NATIVE),y)
diff --git a/libc/sysdeps/linux/common/statfs.c b/libc/sysdeps/linux/common/statfs.c
index 2f8548d0d..d24bc9d0c 100644
--- a/libc/sysdeps/linux/common/statfs.c
+++ b/libc/sysdeps/linux/common/statfs.c
@@ -16,6 +16,7 @@ extern __typeof(statfs) __libc_statfs attribute_hidden;
#define __NR___libc_statfs __NR_statfs
_syscall2(int, __libc_statfs, const char *, path, struct statfs *, buf)
-#if defined __UCLIBC_LINUX_SPECIFIC__
+#if defined __UCLIBC_LINUX_SPECIFIC__ || defined __UCLIBC_HAS_THREADS_NATIVE__
+/* statfs is used by NPTL, so it must exported in case */
weak_alias(__libc_statfs,statfs)
#endif