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-rw-r--r--ldso/include/dl-syscall.h104
1 files changed, 49 insertions, 55 deletions
diff --git a/ldso/include/dl-syscall.h b/ldso/include/dl-syscall.h
index 1e2ceccd6..344a93039 100644
--- a/ldso/include/dl-syscall.h
+++ b/ldso/include/dl-syscall.h
@@ -4,14 +4,21 @@
/* Pull in the arch specific syscall implementation */
#include <ld_syscalls.h>
/* For MAP_ANONYMOUS -- differs between platforms */
-#include <asm/mman.h>
+#include <asm/mman.h>
/* Pull in whatever this particular arch's kernel thinks the kernel version of
* struct stat should look like. It turns out that each arch has a different
* opinion on the subject, and different kernel revs use different names... */
#define kernel_stat stat
#include <bits/kernel_stat.h>
+#include <bits/kernel_types.h>
+/* _dl_open() parameters */
+#define O_RDONLY 0x0000
+#define O_WRONLY 01
+#define O_RDWR 02
+#define O_CREAT 0100
+
/* Encoding of the file mode. */
#define S_IFMT 0170000 /* These bits determine file type. */
@@ -25,7 +32,6 @@
#define S_IFSOCK 0140000 /* Socket. */
/* Protection bits. */
-
#define S_ISUID 04000 /* Set user ID on execution. */
#define S_ISGID 02000 /* Set group ID on execution. */
#define S_ISVTX 01000 /* Save swapped text after use (sticky). */
@@ -33,6 +39,19 @@
#define S_IWRITE 0200 /* Write by owner. */
#define S_IEXEC 0100 /* Execute by owner. */
+/* Stuff for _dl_mmap */
+#if 0
+#define MAP_FAILED ((void *) -1)
+#define _dl_mmap_check_error(X) (((void *)X) == MAP_FAILED)
+#else
+#ifndef _dl_MAX_ERRNO
+#define _dl_MAX_ERRNO 4096
+#endif
+#define _dl_mmap_check_error(__res) \
+ (((int)__res) < 0 && ((int)__res) >= -_dl_MAX_ERRNO)
+#endif
+
+
/* Here are the definitions for some syscalls that are used
by the dynamic linker. The idea is that we want to be able
@@ -40,79 +59,29 @@
we use our own version here. Note that we cannot assume any
dynamic linking at all, so we cannot return any error codes.
We just punt if there is an error. */
-
-
#define __NR__dl_exit __NR_exit
static inline _syscall1(void, _dl_exit, int, status);
-
#define __NR__dl_close __NR_close
static inline _syscall1(int, _dl_close, int, fd);
-
-#if defined(__powerpc__) || defined(__mips__) || defined(__sh__)
-/* PowerPC, MIPS and SuperH have a different calling convention for mmap(). */
-#define __NR__dl_mmap __NR_mmap
-static inline _syscall6(void *, _dl_mmap, void *, start, size_t, length,
- int, prot, int, flags, int, fd, off_t, offset);
-#else
-#define __NR__dl_mmap_real __NR_mmap
-static inline _syscall1(void *, _dl_mmap_real, unsigned long *, buffer);
-
-static inline void * _dl_mmap(void * addr, unsigned long size, int prot,
- int flags, int fd, unsigned long offset)
-{
- unsigned long buffer[6];
-
- buffer[0] = (unsigned long) addr;
- buffer[1] = (unsigned long) size;
- buffer[2] = (unsigned long) prot;
- buffer[3] = (unsigned long) flags;
- buffer[4] = (unsigned long) fd;
- buffer[5] = (unsigned long) offset;
- return (void *) _dl_mmap_real(buffer);
-}
-#endif
-
-#ifndef _dl_MAX_ERRNO
-#define _dl_MAX_ERRNO 4096
-#endif
-#define _dl_mmap_check_error(__res) \
- (((int)__res) < 0 && ((int)__res) >= -_dl_MAX_ERRNO)
-#ifndef MAP_ANONYMOUS
-#ifdef __sparc__
-#define MAP_ANONYMOUS 0x20
-#else
-#error MAP_ANONYMOUS not defined and suplementary value not known
-#endif
-#endif
-
-
#define __NR__dl_open __NR_open
-#define O_RDONLY 0x0000
-#define O_WRONLY 01
-#define O_RDWR 02
-#define O_CREAT 0100 /* not fcntl */
-static inline _syscall2(int, _dl_open, const char *, fn, int, flags);
+static inline _syscall3(int, _dl_open, const char *, fn, int, flags, __kernel_mode_t, mode);
#define __NR__dl_write __NR_write
-static inline _syscall3(unsigned long, _dl_write, int, fd,
+static inline _syscall3(unsigned long, _dl_write, int, fd,
const void *, buf, unsigned long, count);
-
#define __NR__dl_read __NR_read
-static inline _syscall3(unsigned long, _dl_read, int, fd,
+static inline _syscall3(unsigned long, _dl_read, int, fd,
const void *, buf, unsigned long, count);
#define __NR__dl_mprotect __NR_mprotect
static inline _syscall3(int, _dl_mprotect, const void *, addr, unsigned long, len, int, prot);
-
-
#define __NR__dl_stat __NR_stat
static inline _syscall2(int, _dl_stat, const char *, file_name, struct stat *, buf);
-
#define __NR__dl_munmap __NR_munmap
static inline _syscall2(int, _dl_munmap, void *, start, unsigned long, length);
@@ -134,5 +103,30 @@ static inline _syscall0(gid_t, _dl_getpid);
#define __NR__dl_readlink __NR_readlink
static inline _syscall3(int, _dl_readlink, const char *, path, char *, buf, size_t, bufsiz);
+#if defined(__powerpc__) || defined(__mips__) || defined(__sh__)
+/* PowerPC, MIPS and SuperH have a different calling convention for mmap(). */
+#define __NR__dl_mmap __NR_mmap
+static inline _syscall6(void *, _dl_mmap, void *, start, size_t, length,
+ int, prot, int, flags, int, fd, off_t, offset);
+#else
+#define __NR__dl_mmap_real __NR_mmap
+static inline _syscall1(void *, _dl_mmap_real, unsigned long *, buffer);
+
+static inline void * _dl_mmap(void * addr, unsigned long size, int prot,
+ int flags, int fd, unsigned long offset)
+{
+ unsigned long buffer[6];
+
+ buffer[0] = (unsigned long) addr;
+ buffer[1] = (unsigned long) size;
+ buffer[2] = (unsigned long) prot;
+ buffer[3] = (unsigned long) flags;
+ buffer[4] = (unsigned long) fd;
+ buffer[5] = (unsigned long) offset;
+ return (void *) _dl_mmap_real(buffer);
+}
+#endif
+
+
#endif /* _LD_SYSCALL_H_ */