From a91e3b0a22e6bcba52edd101c0ae9e712a9f8cd2 Mon Sep 17 00:00:00 2001
From: "\"Steven J. Hill\"" <sjhill@realitydiluted.com>
Date: Thu, 25 Jul 2002 21:16:01 +0000
Subject: ldso specific syscalls and userspace syscalls all in one file now.

---
 ldso/ldso/mips/README        |  10 ++-
 ldso/ldso/mips/dl-syscalls.h | 178 ++-----------------------------------------
 ldso/ldso/mips/ld_syscalls.h | 178 ++-----------------------------------------
 3 files changed, 16 insertions(+), 350 deletions(-)

(limited to 'ldso')

diff --git a/ldso/ldso/mips/README b/ldso/ldso/mips/README
index 520a5eeb6..1cf6301e5 100644
--- a/ldso/ldso/mips/README
+++ b/ldso/ldso/mips/README
@@ -20,10 +20,12 @@ function 'elf_machine_rel' in 'sysdeps/mips/dl-machine.h'.
 
 ld_syscalls.h
 -------------
-Contains all the macro functions for the system calls as well
-as the list of system calls supported. The functions were taken
-from the Linux kernel source 2.4.17 and can be found in the
-file 'include/asm-mips/unistd.h'.
+Used to contain all the macro functions for the system calls
+as well as the list of system calls supported. We now include
+<sys/syscall.h> but with the __set_errno macro defined empty
+so we can use the same file for the linker as well as userspace.
+Original code was taken from the Linux kernel source 2.4.17 and
+can be found in the file 'include/asm-mips/unistd.h'.
 
 ld_sysdep.h
 -----------
diff --git a/ldso/ldso/mips/dl-syscalls.h b/ldso/ldso/mips/dl-syscalls.h
index da17d63b9..793dc9110 100644
--- a/ldso/ldso/mips/dl-syscalls.h
+++ b/ldso/ldso/mips/dl-syscalls.h
@@ -1,175 +1,7 @@
-/*
- * This file contains the system call macros and syscall
- * numbers used by the shared library loader. Taken from
- * Linux/MIPS 2.4.17 version kernel.
- */
+/* Define the __set_errno macro as nothing so that we don't bother
+ * setting errno, which is important since we make system calls
+ * before the errno symbol is dynamicly linked. */
 
-#ifndef _SYS_STAT_H
-#define _SYS_STAT_H
+#define __set_errno(X)
+#include "sys/syscall.h"
 
-#define new_stat stat
-#include <asm/stat.h>
-
-#define __NR_SYSCALL_BASE		4000
-
-#define __NR_exit			(__NR_SYSCALL_BASE +   1)
-#define __NR_read			(__NR_SYSCALL_BASE +   3)
-#define __NR_write			(__NR_SYSCALL_BASE +   4)
-#define __NR_open			(__NR_SYSCALL_BASE +   5)
-#define __NR_close			(__NR_SYSCALL_BASE +   6)
-#define __NR_getuid			(__NR_SYSCALL_BASE +  24)
-#define __NR_getgid			(__NR_SYSCALL_BASE +  47)
-#define __NR_geteuid			(__NR_SYSCALL_BASE +  49)
-#define __NR_getegid			(__NR_SYSCALL_BASE +  50)
-#define __NR_readlink			(__NR_SYSCALL_BASE +  85)
-#define __NR_mmap			(__NR_SYSCALL_BASE +  90)
-#define __NR_munmap			(__NR_SYSCALL_BASE +  91)
-#define __NR_stat			(__NR_SYSCALL_BASE + 106)
-#define __NR_mprotect			(__NR_SYSCALL_BASE + 125)
-
-/* Here are the macros which define how this platform makes
- * system calls.  This particular variant does _not_ set
- * errno (note how it is disabled in __syscall_return) since
- * these will get called before the errno symbol is dynamicly
- * linked. */
-
-#define _syscall0(type,name) \
-type name(void) \
-{ \
-	register unsigned long __v0 asm("$2") = __NR_##name; \
-	register unsigned long __a3 asm("$7"); \
-	\
-	__asm__ volatile ( \
-	".set\tnoreorder\n\t" \
-	"li\t$2, %2\t\t\t# " #name "\n\t" \
-	"syscall\n\t" \
-	".set\treorder" \
-	: "=&r" (__v0), "=r" (__a3) \
-	: "i" (__NR_##name) \
-	: "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
-	\
-	if (__a3 == 0) \
-		return (type) __v0; \
-	return -1; \
-}
-
-#define _syscall1(type,name,atype,a) \
-type name(atype a) \
-{ \
-	register unsigned long __v0 asm("$2") = __NR_##name; \
-	register unsigned long __a0 asm("$4") = (unsigned long) a; \
-	register unsigned long __a3 asm("$7"); \
-	\
-	__asm__ volatile ( \
-	".set\tnoreorder\n\t" \
-	"li\t$2, %3\t\t\t# " #name "\n\t" \
-	"syscall\n\t" \
-	".set\treorder" \
-	: "=&r" (__v0), "=r" (__a3) \
-	: "r" (__a0), "i" (__NR_##name) \
-	: "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
-	\
-	if (__a3 == 0) \
-		return (type) __v0; \
-	return (type) -1; \
-}
-
-#define _syscall2(type,name,atype,a,btype,b) \
-type name(atype a, btype b) \
-{ \
-	register unsigned long __v0 asm("$2") = __NR_##name; \
-	register unsigned long __a0 asm("$4") = (unsigned long) a; \
-	register unsigned long __a1 asm("$5") = (unsigned long) b; \
-	register unsigned long __a3 asm("$7"); \
-	\
-	__asm__ volatile ( \
-	".set\tnoreorder\n\t" \
-	"li\t$2, %4\t\t\t# " #name "\n\t" \
-	"syscall\n\t" \
-	".set\treorder" \
-	: "=&r" (__v0), "=r" (__a3) \
-	: "r" (__a0), "r" (__a1), "i" (__NR_##name) \
-	: "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
-	\
-	if (__a3 == 0) \
-		return (type) __v0; \
-	return (type) -1; \
-}
-
-#define _syscall3(type,name,atype,a,btype,b,ctype,c) \
-type name(atype a, btype b, ctype c) \
-{ \
-	register unsigned long __v0 asm("$2") = __NR_##name; \
-	register unsigned long __a0 asm("$4") = (unsigned long) a; \
-	register unsigned long __a1 asm("$5") = (unsigned long) b; \
-	register unsigned long __a2 asm("$6") = (unsigned long) c; \
-	register unsigned long __a3 asm("$7"); \
-	\
-	__asm__ volatile ( \
-	".set\tnoreorder\n\t" \
-	"li\t$2, %5\t\t\t# " #name "\n\t" \
-	"syscall\n\t" \
-	".set\treorder" \
-	: "=&r" (__v0), "=r" (__a3) \
-	: "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name) \
-	: "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
-	\
-	if (__a3 == 0) \
-		return (type) __v0; \
-	return (type) -1; \
-}
-
-#define _syscall4(type,name,atype,a,btype,b,ctype,c,dtype,d) \
-type name(atype a, btype b, ctype c, dtype d) \
-{ \
-	register unsigned long __v0 asm("$2") = __NR_##name; \
-	register unsigned long __a0 asm("$4") = (unsigned long) a; \
-	register unsigned long __a1 asm("$5") = (unsigned long) b; \
-	register unsigned long __a2 asm("$6") = (unsigned long) c; \
-	register unsigned long __a3 asm("$7") = (unsigned long) d; \
-	\
-	__asm__ volatile ( \
-	".set\tnoreorder\n\t" \
-	"li\t$2, %5\t\t\t# " #name "\n\t" \
-	"syscall\n\t" \
-	".set\treorder" \
-	: "=&r" (__v0), "+r" (__a3) \
-	: "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name) \
-	: "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
-	\
-	if (__a3 == 0) \
-		return (type) __v0; \
-	return (type) -1; \
-}
-
-#define _syscall6(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e,ftype,f) \
-type name(atype a, btype b, ctype c, dtype d, etype e, ftype f) \
-{ \
-	register unsigned long __v0 asm("$2") = __NR_##name; \
-	register unsigned long __a0 asm("$4") = (unsigned long) a; \
-	register unsigned long __a1 asm("$5") = (unsigned long) b; \
-	register unsigned long __a2 asm("$6") = (unsigned long) c; \
-	register unsigned long __a3 asm("$7") = (unsigned long) d; \
-	\
-	__asm__ volatile ( \
-	".set\tnoreorder\n\t" \
-	"lw\t$2, %6\n\t" \
-	"lw\t$8, %7\n\t" \
-	"subu\t$29, 32\n\t" \
-	"sw\t$2, 16($29)\n\t" \
-	"sw\t$8, 20($29)\n\t" \
-	"li\t$2, %5\t\t\t# " #name "\n\t" \
-	"syscall\n\t" \
-	"addiu\t$29, 32\n\t" \
-	".set\treorder" \
-	: "=&r" (__v0), "+r" (__a3) \
-	: "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name), \
-	  "m" ((unsigned long)e), "m" ((unsigned long)f) \
-	: "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
-	\
-	if (__a3 == 0) \
-		return (type) __v0; \
-	return (type) -1; \
-}
-
-#endif
diff --git a/ldso/ldso/mips/ld_syscalls.h b/ldso/ldso/mips/ld_syscalls.h
index da17d63b9..793dc9110 100644
--- a/ldso/ldso/mips/ld_syscalls.h
+++ b/ldso/ldso/mips/ld_syscalls.h
@@ -1,175 +1,7 @@
-/*
- * This file contains the system call macros and syscall
- * numbers used by the shared library loader. Taken from
- * Linux/MIPS 2.4.17 version kernel.
- */
+/* Define the __set_errno macro as nothing so that we don't bother
+ * setting errno, which is important since we make system calls
+ * before the errno symbol is dynamicly linked. */
 
-#ifndef _SYS_STAT_H
-#define _SYS_STAT_H
+#define __set_errno(X)
+#include "sys/syscall.h"
 
-#define new_stat stat
-#include <asm/stat.h>
-
-#define __NR_SYSCALL_BASE		4000
-
-#define __NR_exit			(__NR_SYSCALL_BASE +   1)
-#define __NR_read			(__NR_SYSCALL_BASE +   3)
-#define __NR_write			(__NR_SYSCALL_BASE +   4)
-#define __NR_open			(__NR_SYSCALL_BASE +   5)
-#define __NR_close			(__NR_SYSCALL_BASE +   6)
-#define __NR_getuid			(__NR_SYSCALL_BASE +  24)
-#define __NR_getgid			(__NR_SYSCALL_BASE +  47)
-#define __NR_geteuid			(__NR_SYSCALL_BASE +  49)
-#define __NR_getegid			(__NR_SYSCALL_BASE +  50)
-#define __NR_readlink			(__NR_SYSCALL_BASE +  85)
-#define __NR_mmap			(__NR_SYSCALL_BASE +  90)
-#define __NR_munmap			(__NR_SYSCALL_BASE +  91)
-#define __NR_stat			(__NR_SYSCALL_BASE + 106)
-#define __NR_mprotect			(__NR_SYSCALL_BASE + 125)
-
-/* Here are the macros which define how this platform makes
- * system calls.  This particular variant does _not_ set
- * errno (note how it is disabled in __syscall_return) since
- * these will get called before the errno symbol is dynamicly
- * linked. */
-
-#define _syscall0(type,name) \
-type name(void) \
-{ \
-	register unsigned long __v0 asm("$2") = __NR_##name; \
-	register unsigned long __a3 asm("$7"); \
-	\
-	__asm__ volatile ( \
-	".set\tnoreorder\n\t" \
-	"li\t$2, %2\t\t\t# " #name "\n\t" \
-	"syscall\n\t" \
-	".set\treorder" \
-	: "=&r" (__v0), "=r" (__a3) \
-	: "i" (__NR_##name) \
-	: "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
-	\
-	if (__a3 == 0) \
-		return (type) __v0; \
-	return -1; \
-}
-
-#define _syscall1(type,name,atype,a) \
-type name(atype a) \
-{ \
-	register unsigned long __v0 asm("$2") = __NR_##name; \
-	register unsigned long __a0 asm("$4") = (unsigned long) a; \
-	register unsigned long __a3 asm("$7"); \
-	\
-	__asm__ volatile ( \
-	".set\tnoreorder\n\t" \
-	"li\t$2, %3\t\t\t# " #name "\n\t" \
-	"syscall\n\t" \
-	".set\treorder" \
-	: "=&r" (__v0), "=r" (__a3) \
-	: "r" (__a0), "i" (__NR_##name) \
-	: "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
-	\
-	if (__a3 == 0) \
-		return (type) __v0; \
-	return (type) -1; \
-}
-
-#define _syscall2(type,name,atype,a,btype,b) \
-type name(atype a, btype b) \
-{ \
-	register unsigned long __v0 asm("$2") = __NR_##name; \
-	register unsigned long __a0 asm("$4") = (unsigned long) a; \
-	register unsigned long __a1 asm("$5") = (unsigned long) b; \
-	register unsigned long __a3 asm("$7"); \
-	\
-	__asm__ volatile ( \
-	".set\tnoreorder\n\t" \
-	"li\t$2, %4\t\t\t# " #name "\n\t" \
-	"syscall\n\t" \
-	".set\treorder" \
-	: "=&r" (__v0), "=r" (__a3) \
-	: "r" (__a0), "r" (__a1), "i" (__NR_##name) \
-	: "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
-	\
-	if (__a3 == 0) \
-		return (type) __v0; \
-	return (type) -1; \
-}
-
-#define _syscall3(type,name,atype,a,btype,b,ctype,c) \
-type name(atype a, btype b, ctype c) \
-{ \
-	register unsigned long __v0 asm("$2") = __NR_##name; \
-	register unsigned long __a0 asm("$4") = (unsigned long) a; \
-	register unsigned long __a1 asm("$5") = (unsigned long) b; \
-	register unsigned long __a2 asm("$6") = (unsigned long) c; \
-	register unsigned long __a3 asm("$7"); \
-	\
-	__asm__ volatile ( \
-	".set\tnoreorder\n\t" \
-	"li\t$2, %5\t\t\t# " #name "\n\t" \
-	"syscall\n\t" \
-	".set\treorder" \
-	: "=&r" (__v0), "=r" (__a3) \
-	: "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name) \
-	: "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
-	\
-	if (__a3 == 0) \
-		return (type) __v0; \
-	return (type) -1; \
-}
-
-#define _syscall4(type,name,atype,a,btype,b,ctype,c,dtype,d) \
-type name(atype a, btype b, ctype c, dtype d) \
-{ \
-	register unsigned long __v0 asm("$2") = __NR_##name; \
-	register unsigned long __a0 asm("$4") = (unsigned long) a; \
-	register unsigned long __a1 asm("$5") = (unsigned long) b; \
-	register unsigned long __a2 asm("$6") = (unsigned long) c; \
-	register unsigned long __a3 asm("$7") = (unsigned long) d; \
-	\
-	__asm__ volatile ( \
-	".set\tnoreorder\n\t" \
-	"li\t$2, %5\t\t\t# " #name "\n\t" \
-	"syscall\n\t" \
-	".set\treorder" \
-	: "=&r" (__v0), "+r" (__a3) \
-	: "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name) \
-	: "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
-	\
-	if (__a3 == 0) \
-		return (type) __v0; \
-	return (type) -1; \
-}
-
-#define _syscall6(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e,ftype,f) \
-type name(atype a, btype b, ctype c, dtype d, etype e, ftype f) \
-{ \
-	register unsigned long __v0 asm("$2") = __NR_##name; \
-	register unsigned long __a0 asm("$4") = (unsigned long) a; \
-	register unsigned long __a1 asm("$5") = (unsigned long) b; \
-	register unsigned long __a2 asm("$6") = (unsigned long) c; \
-	register unsigned long __a3 asm("$7") = (unsigned long) d; \
-	\
-	__asm__ volatile ( \
-	".set\tnoreorder\n\t" \
-	"lw\t$2, %6\n\t" \
-	"lw\t$8, %7\n\t" \
-	"subu\t$29, 32\n\t" \
-	"sw\t$2, 16($29)\n\t" \
-	"sw\t$8, 20($29)\n\t" \
-	"li\t$2, %5\t\t\t# " #name "\n\t" \
-	"syscall\n\t" \
-	"addiu\t$29, 32\n\t" \
-	".set\treorder" \
-	: "=&r" (__v0), "+r" (__a3) \
-	: "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name), \
-	  "m" ((unsigned long)e), "m" ((unsigned long)f) \
-	: "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
-	\
-	if (__a3 == 0) \
-		return (type) __v0; \
-	return (type) -1; \
-}
-
-#endif
-- 
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