[uclibc-ng-devel] [PATCH] [sh4] Fix sh4 compilation with 4.x kernel headers

- Fallback to __NR_stat syscall in ld.so if we use 4.x kernel headers. 4.x kernel doesn't support 64-bit time so we can use old syscall - Add fallback fstat64 implementation. With 4.x kernel headers we don't reach previous ifdef-elif blocks. Signed-off-by: Dmitry Chestnykh &lt;dm.chestnykh(a)gmail.com&gt; --- ldso/include/dl-syscall.h | 4 +++- libc/sysdeps/linux/common/fstat64.c | 8 ++++++++ 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/ldso/include/dl-syscall.h b/ldso/include/dl-syscall.h index 4f41034ad..9ec0eac60 100644 --- a/ldso/include/dl-syscall.h +++ b/ldso/include/dl-syscall.h @@ -17,6 +17,8 @@ extern int _dl_errno; #define __set_errno(X) {(_dl_errno) = (X);} #endif +#include <linux/version.h> + /* Pull in the arch specific syscall implementation */ #include <dl-syscalls.h> /* For MAP_ANONYMOUS -- differs between platforms */ @@ -139,7 +141,7 @@ static __always_inline int _dl_stat(const char *file_name, { return _dl_newfstatat(AT_FDCWD, file_name, buf, 0); } -#elif defined __NR_stat && (!defined(__UCLIBC_USE_TIME64__) || defined(__sparc__)) +#elif defined __NR_stat && (!defined(__UCLIBC_USE_TIME64__) || defined(__sparc__)) || (LINUX_VERSION_CODE <= KERNEL_VERSION(5,1,0)) # define __NR__dl_stat __NR_stat static __always_inline _syscall2(int, _dl_stat, const char *, file_name, struct stat *, buf) diff --git a/libc/sysdeps/linux/common/fstat64.c b/libc/sysdeps/linux/common/fstat64.c index 359c22af6..60948bdfc 100644 --- a/libc/sysdeps/linux/common/fstat64.c +++ b/libc/sysdeps/linux/common/fstat64.c @@ -50,4 +50,12 @@ int fstat64(int fd, struct stat64 *buf) return rc; } libc_hidden_def(fstat64) +#else +# include <sys/stat.h> +# define __NR___syscall_fstat64 __NR_fstat64 +static __always_inline _syscall2(int, __syscall_fstat64, + int, filedes, struct kernel_stat64 *, buf) +int fstat64(int fd, struct stat64 *buf) { + return __syscall_fstat64(fd, buf); +} #endif -- 2.45.2