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authorWaldemar Brodkorb <wbx@openadk.org>2019-10-23 13:57:27 +0200
committerWaldemar Brodkorb <wbx@openadk.org>2020-02-03 11:50:54 +0100
commit8a04c4d84c8a1a1297ec0c5cec5522112981e0c0 (patch)
tree80f637db2009956f5c5bfad7f413580af466e3e5 /ldso/include/dl-syscall.h
parent6b21a5a5bd895e16ef57c4d0d89c806b2e0c22e8 (diff)
csky: add statx conditionals
Similar to glibc commit https://sourceware.org/git/?p=glibc.git;a=commit;h=6bbfc5c09fc5b5e3d4a0cddbbd4e2e457767dae7 we need to handle Linux kernel change, which removed stat64 family from default syscall set. Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Waldemar Brodkorb <wbrodkorb@conet.de>
Diffstat (limited to 'ldso/include/dl-syscall.h')
-rw-r--r--ldso/include/dl-syscall.h64
1 files changed, 63 insertions, 1 deletions
diff --git a/ldso/include/dl-syscall.h b/ldso/include/dl-syscall.h
index 9d80c6a26..55688e1c1 100644
--- a/ldso/include/dl-syscall.h
+++ b/ldso/include/dl-syscall.h
@@ -36,9 +36,37 @@ extern int _dl_errno;
/* 1. common-generic ABI doesn't need kernel_stat translation
* 3. S_IS?ID already provided by stat.h
*/
+#include <fcntl.h>
#include <sys/stat.h>
+#include <dl-string.h>
+
+static __always_inline void
+__cp_stat_statx (struct stat *to, struct statx *from)
+{
+ _dl_memset (to, 0, sizeof (struct stat));
+ to->st_dev = ((from->stx_dev_minor & 0xff) | (from->stx_dev_major << 8)
+ | ((from->stx_dev_minor & ~0xff) << 12));
+ to->st_rdev = ((from->stx_rdev_minor & 0xff) | (from->stx_rdev_major << 8)
+ | ((from->stx_rdev_minor & ~0xff) << 12));
+ to->st_ino = from->stx_ino;
+ to->st_mode = from->stx_mode;
+ to->st_nlink = from->stx_nlink;
+ to->st_uid = from->stx_uid;
+ to->st_gid = from->stx_gid;
+ to->st_atime = from->stx_atime.tv_sec;
+ to->st_atim.tv_nsec = from->stx_atime.tv_nsec;
+ to->st_mtime = from->stx_mtime.tv_sec;
+ to->st_mtim.tv_nsec = from->stx_mtime.tv_nsec;
+ to->st_ctime = from->stx_ctime.tv_sec;
+ to->st_ctim.tv_nsec = from->stx_ctime.tv_nsec;
+ to->st_size = from->stx_size;
+ to->st_blocks = from->stx_blocks;
+ to->st_blksize = from->stx_blksize;
+}
#endif
+#define AT_NO_AUTOMOUNT 0x800
+#define AT_EMPTY_PATH 0x1000
/* Here are the definitions for some syscalls that are used
by the dynamic linker. The idea is that we want to be able
@@ -109,14 +137,48 @@ static __always_inline int _dl_stat(const char *file_name,
# define __NR__dl_stat __NR_stat
static __always_inline _syscall2(int, _dl_stat, const char *, file_name,
struct stat *, buf)
+
+#elif defined __NR_statx && defined __UCLIBC_HAVE_STATX__
+# define __NR__dl_statx __NR_statx
+# include <fcntl.h>
+# include <statx_cp.h>
+
+static __always_inline _syscall5(int, _dl_statx, int, fd, const char *, file_name, int, flags,
+ unsigned int, mask, struct statx *, buf);
+
+static __always_inline int _dl_stat(const char *file_name,
+ struct stat *buf)
+{
+ struct statx tmp;
+ int rc = _dl_statx(AT_FDCWD, file_name, AT_NO_AUTOMOUNT, STATX_BASIC_STATS, &tmp);
+ if (rc == 0)
+ __cp_stat_statx ((struct stat *)buf, &tmp);
+ return rc;
+}
#endif
#if defined __NR_fstat64 && !defined __NR_fstat
# define __NR__dl_fstat __NR_fstat64
+static __always_inline _syscall2(int, _dl_fstat, int, fd, struct stat *, buf)
#elif defined __NR_fstat
# define __NR__dl_fstat __NR_fstat
-#endif
static __always_inline _syscall2(int, _dl_fstat, int, fd, struct stat *, buf)
+#elif defined __NR_statx && defined __UCLIBC_HAVE_STATX__
+# define __NR__dl_fstatx __NR_statx
+static __always_inline _syscall5(int, _dl_fstatx, int, fd, const char *, file_name, int, flags, unsigned int, mask, struct stat *, buf);
+
+static __always_inline int _dl_fstat(int fd,
+ struct stat *buf)
+{
+ struct statx tmp;
+ int rc = _dl_fstatx(fd, "", AT_EMPTY_PATH, STATX_BASIC_STATS, &tmp);
+ if (rc == 0)
+ __cp_stat_statx ((struct stat *)buf, &tmp);
+ return rc;
+}
+#else
+static __always_inline _syscall2(int, _dl_fstat, int, fd, struct stat *, buf)
+#endif
#define __NR__dl_munmap __NR_munmap
static __always_inline _syscall2(int, _dl_munmap, void *, start, unsigned long, length)