diff options
Diffstat (limited to 'package/lttng-tools/lttng-tools-no-sync-file-range-in-uclibc.patch')
| -rw-r--r-- | package/lttng-tools/lttng-tools-no-sync-file-range-in-uclibc.patch | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/package/lttng-tools/lttng-tools-no-sync-file-range-in-uclibc.patch b/package/lttng-tools/lttng-tools-no-sync-file-range-in-uclibc.patch new file mode 100644 index 000000000..3a1807ed5 --- /dev/null +++ b/package/lttng-tools/lttng-tools-no-sync-file-range-in-uclibc.patch @@ -0,0 +1,50 @@ +Make sync_file_range() usage optional + +Under uClibc, sync_file_range() is not available under all +architectures, so we fall back to fdatasync() in this case. + +Inspired by the patch done by Thomas Petazzoni for the +2.0-pre25 version. + +Signed-off-by: Samuel Martin <s.martin49@gmail.com> +--- + configure.ac | 2 +- + src/common/compat/fcntl.h | 5 +++++ + 2 files changed, 6 insertions(+), 1 deletion(-) + +diff --git a/configure.ac b/configure.ac +index 5808c79..065b9cf 100644 +--- a/configure.ac ++++ b/configure.ac +@@ -120,7 +120,7 @@ AS_IF([test "x$lttng_ust_support" = "xyes"], [ + + AM_CONDITIONAL([HAVE_LIBLTTNG_UST_CTL], [ test "x$ac_cv_lib_lttng_ust_ctl_ustctl_create_session" = "xyes" ]) + +-AC_CHECK_FUNCS([sched_getcpu sysconf]) ++AC_CHECK_FUNCS([sched_getcpu sysconf sync_file_range]) + + # check for dlopen + AC_CHECK_LIB([dl], [dlopen], +diff --git a/src/common/compat/fcntl.h b/src/common/compat/fcntl.h +index 58c1579..dafb33e 100644 +--- a/src/common/compat/fcntl.h ++++ b/src/common/compat/fcntl.h +@@ -23,10 +23,15 @@ + + #ifdef __linux__ + ++#if defined(HAVE_SYNC_FILE_RANGE) + extern int compat_sync_file_range(int fd, off64_t offset, off64_t nbytes, + unsigned int flags); + #define lttng_sync_file_range(fd, offset, nbytes, flags) \ + compat_sync_file_range(fd, offset, nbytes, flags) ++#else ++#define lttng_sync_file_range(fd, offset, nbytes, flags) \ ++ fdatasync(fd); ++#endif + + #elif defined(__FreeBSD__) + +-- +1.7.10 + |