#ifndef _LD_SYSCALL_H_
#define _LD_SYSCALL_H_
+/* We can't use the real errno in ldso, since it has not yet
+ * been dynamicly linked in yet. */
+#include "sys/syscall.h"
+extern int _dl_errno;
+#undef __set_errno
+#define __set_errno(X) {(_dl_errno) = (X);}
+
/* Pull in the arch specific syscall implementation */
#include <dl-syscalls.h>
/* For MAP_ANONYMOUS -- differs between platforms */
#include <bits/kernel_stat.h>
#include <bits/kernel_types.h>
-/* _dl_open() parameters */
-#define O_RDONLY 00
-#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. */
-
-/* File types. */
-#define S_IFDIR 0040000 /* Directory. */
-#define S_IFCHR 0020000 /* Character device. */
-#define S_IFBLK 0060000 /* Block device. */
-#define S_IFREG 0100000 /* Regular file. */
-#define S_IFIFO 0010000 /* FIFO. */
-#define S_IFLNK 0120000 /* Symbolic link. */
-#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). */
-#define S_IREAD 0400 /* Read by owner. */
-#define S_IWRITE 0200 /* Write by owner. */
-#define S_IEXEC 0100 /* Execute by owner. */
-
/* Here are the definitions for some syscalls that are used
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 __always_inline _syscall1(void, _dl_exit, int, status);
+static __always_inline _syscall1(void, _dl_exit, int, status)
#define __NR__dl_close __NR_close
-static __always_inline _syscall1(int, _dl_close, int, fd);
+static __always_inline _syscall1(int, _dl_close, int, fd)
#define __NR__dl_open __NR_open
static __always_inline _syscall3(int, _dl_open, const char *, fn, int, flags,
- __kernel_mode_t, mode);
+ __kernel_mode_t, mode)
#define __NR__dl_write __NR_write
static __always_inline _syscall3(unsigned long, _dl_write, int, fd,
- const void *, buf, unsigned long, count);
+ const void *, buf, unsigned long, count)
#define __NR__dl_read __NR_read
static __always_inline _syscall3(unsigned long, _dl_read, int, fd,
- const void *, buf, unsigned long, count);
+ const void *, buf, unsigned long, count)
#define __NR__dl_mprotect __NR_mprotect
static __always_inline _syscall3(int, _dl_mprotect, const void *, addr,
- unsigned long, len, int, prot);
+ unsigned long, len, int, prot)
#define __NR__dl_stat __NR_stat
static __always_inline _syscall2(int, _dl_stat, const char *, file_name,
- struct stat *, buf);
+ struct stat *, buf)
#define __NR__dl_fstat __NR_fstat
-static __always_inline _syscall2(int, _dl_fstat, int, fd, struct stat *, buf);
+static __always_inline _syscall2(int, _dl_fstat, int, fd, struct stat *, buf)
#define __NR__dl_munmap __NR_munmap
-static __always_inline _syscall2(int, _dl_munmap, void *, start, unsigned long, length);
+static __always_inline _syscall2(int, _dl_munmap, void *, start, unsigned long, length)
#ifdef __NR_getxuid
# define __NR_getuid __NR_getxuid
#endif
#define __NR__dl_getuid __NR_getuid
-static __always_inline _syscall0(uid_t, _dl_getuid);
+static __always_inline _syscall0(uid_t, _dl_getuid)
#ifndef __NR_geteuid
# define __NR_geteuid __NR_getuid
#endif
#define __NR__dl_geteuid __NR_geteuid
-static __always_inline _syscall0(uid_t, _dl_geteuid);
+static __always_inline _syscall0(uid_t, _dl_geteuid)
#ifdef __NR_getxgid
# define __NR_getgid __NR_getxgid
#endif
#define __NR__dl_getgid __NR_getgid
-static __always_inline _syscall0(gid_t, _dl_getgid);
+static __always_inline _syscall0(gid_t, _dl_getgid)
#ifndef __NR_getegid
# define __NR_getegid __NR_getgid
#endif
#define __NR__dl_getegid __NR_getegid
-static __always_inline _syscall0(gid_t, _dl_getegid);
+static __always_inline _syscall0(gid_t, _dl_getegid)
#ifdef __NR_getxpid
# define __NR_getpid __NR_getxpid
#endif
#define __NR__dl_getpid __NR_getpid
-static __always_inline _syscall0(gid_t, _dl_getpid);
+static __always_inline _syscall0(gid_t, _dl_getpid)
#define __NR__dl_readlink __NR_readlink
static __always_inline _syscall3(int, _dl_readlink, const char *, path, char *, buf,
- size_t, bufsiz);
+ size_t, bufsiz)
+
+#ifdef __NR_pread64
+#define __NR___syscall_pread __NR_pread64
+static __always_inline _syscall5(ssize_t, __syscall_pread, int, fd, void *, buf,
+ size_t, count, off_t, offset_hi, off_t, offset_lo)
+
+static __always_inline ssize_t
+_dl_pread(int fd, void *buf, size_t count, off_t offset)
+{
+ return __syscall_pread(fd, buf, count, offset, offset >> 31);
+}
+#elif defined __NR_pread
+#define __NR___syscall_pread __NR_pread
+static __always_inline _syscall5(ssize_t, __syscall_pread, int, fd, void *, buf,
+ size_t, count, off_t, offset_hi, off_t, offset_lo)
+
+static __always_inline ssize_t
+_dl_pread(int fd, void *buf, size_t count, off_t offset)
+{
+ return __syscall_pread(fd, buf, count, __LONG_LONG_PAIR(offset >> 31, offset));
+}
+#endif
#ifdef __UCLIBC_HAS_SSP__
# include <sys/time.h>
# define __NR__dl_gettimeofday __NR_gettimeofday
static __always_inline _syscall2(int, _dl_gettimeofday, struct timeval *, tv,
# ifdef __USE_BSD
- struct timezone *, tz);
+ struct timezone *
# else
- void *, tz);
+ void *
# endif
+ , tz)
#endif
-
-/* handle all the fun mmap intricacies */
-#if (defined(__UCLIBC_MMAP_HAS_6_ARGS__) && defined(__NR_mmap)) || !defined(__NR_mmap2)
-# define _dl_MAX_ERRNO 4096
-# define _dl_mmap_check_error(__res) \
- (((long)__res) < 0 && ((long)__res) >= -_dl_MAX_ERRNO)
-#else
-# define MAP_FAILED ((void *) -1)
-# define _dl_mmap_check_error(X) (((void *)X) == MAP_FAILED)
-#endif
-
-/* first try mmap(), syscall6() style */
-#if defined(__UCLIBC_MMAP_HAS_6_ARGS__) && defined(__NR_mmap)
-
-# define __NR__dl_mmap __NR_mmap
-static __always_inline _syscall6(void *, _dl_mmap, void *, start, size_t, length,
- int, prot, int, flags, int, fd, off_t, offset);
-#if !defined (__mcoldfire__) // Might be a kernel problem. failed on 2.6.25
-/* then try mmap2() */
-#elif defined(__NR_mmap2)
-
-# define __NR___syscall_mmap2 __NR_mmap2
-static __always_inline _syscall6(__ptr_t, __syscall_mmap2, __ptr_t, addr, size_t, len,
- int, prot, int, flags, int, fd, off_t, offset);
-
/* Some architectures always use 12 as page shift for mmap2() eventhough the
* real PAGE_SHIFT != 12. Other architectures use the same value as
* PAGE_SHIFT...
# define MMAP2_PAGE_SHIFT 12
#endif
-static __always_inline void * _dl_mmap(void * addr, unsigned long size, int prot,
- int flags, int fd, unsigned long offset)
+#define MAP_FAILED ((void *) -1)
+#define _dl_mmap_check_error(X) (((void *)X) == MAP_FAILED)
+
+static __always_inline
+void *_dl_mmap(void *addr, unsigned long size, int prot,
+ int flags, int fd, unsigned long offset)
{
+#if defined(__UCLIBC_MMAP_HAS_6_ARGS__) && defined(__NR_mmap)
+ /* first try mmap(), syscall6() style */
+ return (void *)INLINE_SYSCALL(mmap, 6, addr, size, prot, flags, fd, offset);
+
+#elif defined(__NR_mmap2) && !defined (__mcoldfire__)
+ /* then try mmap2() */
+ unsigned long shifted;
+
if (offset & ((1 << MMAP2_PAGE_SHIFT) - 1))
return MAP_FAILED;
- return __syscall_mmap2(addr, size, prot, flags,
- fd, (off_t) (offset >> MMAP2_PAGE_SHIFT));
-}
-#endif
-/* finally, fall back to mmap(), syscall1() style */
-#elif defined(__NR_mmap)
-# define __NR__dl_mmap_real __NR_mmap
-static __always_inline _syscall1(void *, _dl_mmap_real, unsigned long *, buffer);
-static __always_inline void * _dl_mmap(void * addr, unsigned long size, int prot,
- int flags, int fd, unsigned long offset)
-{
- unsigned long buffer[6];
+ /* gcc needs help with putting things onto the stack */
+ shifted = offset >> MMAP2_PAGE_SHIFT;
+ return (void *)INLINE_SYSCALL(mmap2, 6, addr, size, prot, flags, fd, shifted);
+#elif defined(__NR_mmap)
+ /* finally, fall back to mmap(), syscall1() style */
+ 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);
-}
-
+ return (void *)INLINE_SYSCALL(mmap, 1, buffer);
#else
# error "Your architecture doesn't seem to provide mmap() !?"
#endif
+}
#endif /* _LD_SYSCALL_H_ */
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