From e5b0dc856bb1e5eeec57be3bd63b091c10ef67a9 Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Mon, 23 Apr 2001 21:18:14 +0000
Subject: Revert my syscall changes. The _syscall# macros are not PIC friendly
and don't work. Back to nasty asm...
With this change in place, it now works for me on x86.
-Erik
---
ldso/ldso/i386/elfinterp.c | 2 +-
ldso/ldso/ld_syscall.h | 108 ---------------------------------------------
ldso/ldso/syscall.h | 108 ---------------------------------------------
3 files changed, 1 insertion(+), 217 deletions(-)
delete mode 100644 ldso/ldso/ld_syscall.h
delete mode 100644 ldso/ldso/syscall.h
diff --git a/ldso/ldso/i386/elfinterp.c b/ldso/ldso/i386/elfinterp.c
index 3347882d6..01149c69b 100644
--- a/ldso/ldso/i386/elfinterp.c
+++ b/ldso/ldso/i386/elfinterp.c
@@ -44,8 +44,8 @@ an ELF sharable library or a linux style of shared library. */
#include "hash.h"
#include "linuxelf.h"
+#include "syscall.h"
#include "../string.h"
-#include "../syscall.h"
#define SVR4_COMPATIBILITY
diff --git a/ldso/ldso/ld_syscall.h b/ldso/ldso/ld_syscall.h
deleted file mode 100644
index 3cf244338..000000000
--- a/ldso/ldso/ld_syscall.h
+++ /dev/null
@@ -1,108 +0,0 @@
-#include <linux/types.h>
-#include <asm/unistd.h>
-
-#ifndef _dl_MAX_ERRNO
-#define _dl_MAX_ERRNO 4096
-#endif
-
-#define _dl_mmap_check_error(__res) \
- (((int)__res) < 0 && ((int)__res) >= -_dl_MAX_ERRNO)
-
-
-/* Here are the definitions for some syscalls that are used
- by the dynamic linker. The idea is that we want to be able
- to call these before the errno symbol is dynamicly linked, so
- 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. */
-
-/* Do not include unistd.h, so gcc doesn't whine about
- * _exit returning. It really doesn't return... */
-#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);
-
-
-#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);
-}
-
-#define __NR__dl_open __NR_open
-static inline _syscall2(int, _dl_open, const char *, fn, int, flags);
-
-#define __NR__dl_write __NR_write
-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,
- 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);
-
-
-
-/* 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 __NR__dl_stat __NR_stat
-#define stat kernel_stat
-#define new_stat kernel_stat
-#include <asm/stat.h>
-#undef new_stat
-#undef stat
-static inline _syscall2(int, _dl_stat, const char *, file_name, struct kernel_stat *, buf);
-
-
-#define __NR__dl_munmap __NR_munmap
-static inline _syscall2(int, _dl_munmap, void *, start, unsigned long, length);
-
-#define __NR__dl_getuid __NR_getuid
-static inline _syscall0(gid_t, _dl_getuid);
-
-#define __NR__dl_geteuid __NR_geteuid
-static inline _syscall0(uid_t, _dl_geteuid);
-
-#define __NR__dl_getgid __NR_getgid
-static inline _syscall0(gid_t, _dl_getgid);
-
-#define __NR__dl_getegid __NR_getegid
-static inline _syscall0(gid_t, _dl_getegid);
-
-/*
- * Not an actual syscall, but we need something in assembly to say whether
- * this is OK or not.
- */
-extern inline int _dl_suid_ok(void)
-{
- uid_t uid, euid, gid, egid;
-
- uid = _dl_getuid();
- euid = _dl_geteuid();
- gid = _dl_getgid();
- egid = _dl_getegid();
-
- if(uid == euid && gid == egid)
- return 1;
- else
- return 0;
-}
-
diff --git a/ldso/ldso/syscall.h b/ldso/ldso/syscall.h
deleted file mode 100644
index 3cf244338..000000000
--- a/ldso/ldso/syscall.h
+++ /dev/null
@@ -1,108 +0,0 @@
-#include <linux/types.h>
-#include <asm/unistd.h>
-
-#ifndef _dl_MAX_ERRNO
-#define _dl_MAX_ERRNO 4096
-#endif
-
-#define _dl_mmap_check_error(__res) \
- (((int)__res) < 0 && ((int)__res) >= -_dl_MAX_ERRNO)
-
-
-/* Here are the definitions for some syscalls that are used
- by the dynamic linker. The idea is that we want to be able
- to call these before the errno symbol is dynamicly linked, so
- 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. */
-
-/* Do not include unistd.h, so gcc doesn't whine about
- * _exit returning. It really doesn't return... */
-#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);
-
-
-#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);
-}
-
-#define __NR__dl_open __NR_open
-static inline _syscall2(int, _dl_open, const char *, fn, int, flags);
-
-#define __NR__dl_write __NR_write
-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,
- 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);
-
-
-
-/* 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 __NR__dl_stat __NR_stat
-#define stat kernel_stat
-#define new_stat kernel_stat
-#include <asm/stat.h>
-#undef new_stat
-#undef stat
-static inline _syscall2(int, _dl_stat, const char *, file_name, struct kernel_stat *, buf);
-
-
-#define __NR__dl_munmap __NR_munmap
-static inline _syscall2(int, _dl_munmap, void *, start, unsigned long, length);
-
-#define __NR__dl_getuid __NR_getuid
-static inline _syscall0(gid_t, _dl_getuid);
-
-#define __NR__dl_geteuid __NR_geteuid
-static inline _syscall0(uid_t, _dl_geteuid);
-
-#define __NR__dl_getgid __NR_getgid
-static inline _syscall0(gid_t, _dl_getgid);
-
-#define __NR__dl_getegid __NR_getegid
-static inline _syscall0(gid_t, _dl_getegid);
-
-/*
- * Not an actual syscall, but we need something in assembly to say whether
- * this is OK or not.
- */
-extern inline int _dl_suid_ok(void)
-{
- uid_t uid, euid, gid, egid;
-
- uid = _dl_getuid();
- euid = _dl_geteuid();
- gid = _dl_getgid();
- egid = _dl_getegid();
-
- if(uid == euid && gid == egid)
- return 1;
- else
- return 0;
-}
-
--
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