Merge SH-2 trapa fixups from Mark.

2006-10-16  Mark Shinwell  <shinwell@codesourcery.com>

	* libc/sysdeps/linux/sh/vfork.S: Use __SH_SYSCALL_TRAP_BASE.
	Also use __CONFIG_SH2__ rather than __sh2__, for consistency.
	* libc/sysdeps/linux/sh/syscall.c: Use __SH_SYSCALL_TRAP_BASE.
	* libc/sysdeps/linux/sh/bits/uClibc_arch_features.h: Use
	__CONFIG_SH2__ rather than __sh2__, for consistency.
	* libc/sysdeps/linux/sh/bits/syscalls.h (__SH_SYSCALL_TRAP_BASE):
	New.
	Use instead of hard-coded trap numbers in the various __NR_<name>
	macros.
	* libc/sysdeps/linux/sh/clone.S: Use __SH_SYSCALL_TRAP_BASE.
	Also use __CONFIG_SH2__ rather than __sh2__, for consistency.
	* libc/sysdeps/linux/sh/crti.S: Disable GOT-related code if
	__HAVE_SHARED__ is not set.
	* libc/sysdeps/linux/sh/pipe.c (pipe): Use __SH_SYSCALL_TRAP_BASE.

libc/sysdeps/linux/sh/bits/syscalls.h

@@ -4,6 +4,13 @@
 # error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
 #endif
 
+/* The Linux kernel uses different trap numbers on sh-2.  */
+#ifdef __CONFIG_SH2__
+# define __SH_SYSCALL_TRAP_BASE 0x20
+#else
+# define __SH_SYSCALL_TRAP_BASE 0x10
+#endif
+
 /* This includes the `__NR_<name>' syscall numbers taken from the Linux kernel
  * header files.  It also defines the traditional `SYS_<name>' macros for older
  * programs.  */
@@ -33,9 +40,9 @@ do { \
 type name(void) \
 { \
 register long __sc0 __asm__ ("r3") = __NR_##name; \
-__asm__ __volatile__ ("trapa	#0x10" \
+__asm__ __volatile__ ("trapa	%1" \
 	: "=z" (__sc0) \
-	: "0" (__sc0) \
+	: "i" (__SH_SYSCALL_TRAP_BASE), "0" (__sc0) \
 	: "memory" ); \
 __syscall_return(type,__sc0); \
 }
@@ -45,9 +52,9 @@ type name(type1 arg1) \
 { \
 register long __sc0 __asm__ ("r3") = __NR_##name; \
 register long __sc4 __asm__ ("r4") = (long) arg1; \
-__asm__ __volatile__ ("trapa	#0x11" \
+__asm__ __volatile__ ("trapa	%1" \
 	: "=z" (__sc0) \
-	: "0" (__sc0), "r" (__sc4) \
+	: "i" (__SH_SYSCALL_TRAP_BASE + 1), "0" (__sc0), "r" (__sc4) \
 	: "memory"); \
 __syscall_return(type,__sc0); \
 }
@@ -58,9 +65,10 @@ type name(type1 arg1,type2 arg2) \
 register long __sc0 __asm__ ("r3") = __NR_##name; \
 register long __sc4 __asm__ ("r4") = (long) arg1; \
 register long __sc5 __asm__ ("r5") = (long) arg2; \
-__asm__ __volatile__ ("trapa	#0x12" \
+__asm__ __volatile__ ("trapa	%1" \
 	: "=z" (__sc0) \
-	: "0" (__sc0), "r" (__sc4), "r" (__sc5) \
+	: "i" (__SH_SYSCALL_TRAP_BASE + 2), "0" (__sc0), "r" (__sc4), \
+          "r" (__sc5) \
 	: "memory"); \
 __syscall_return(type,__sc0); \
 }
@@ -72,9 +80,10 @@ register long __sc0 __asm__ ("r3") = __NR_##name; \
 register long __sc4 __asm__ ("r4") = (long) arg1; \
 register long __sc5 __asm__ ("r5") = (long) arg2; \
 register long __sc6 __asm__ ("r6") = (long) arg3; \
-__asm__ __volatile__ ("trapa	#0x13" \
+__asm__ __volatile__ ("trapa	%1" \
 	: "=z" (__sc0) \
-	: "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6) \
+	: "i" (__SH_SYSCALL_TRAP_BASE + 3), "0" (__sc0), "r" (__sc4), \
+          "r" (__sc5), "r" (__sc6) \
 	: "memory"); \
 __syscall_return(type,__sc0); \
 }
@@ -87,9 +96,10 @@ register long __sc4 __asm__ ("r4") = (long) arg1; \
 register long __sc5 __asm__ ("r5") = (long) arg2; \
 register long __sc6 __asm__ ("r6") = (long) arg3; \
 register long __sc7 __asm__ ("r7") = (long) arg4; \
-__asm__ __volatile__ ("trapa	#0x14" \
+__asm__ __volatile__ ("trapa	%1" \
 	: "=z" (__sc0) \
-	: "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6),  \
+	: "i" (__SH_SYSCALL_TRAP_BASE + 4), "0" (__sc0), "r" (__sc4), \
+          "r" (__sc5), "r" (__sc6),  \
 	  "r" (__sc7) \
 	: "memory" ); \
 __syscall_return(type,__sc0); \
@@ -104,18 +114,19 @@ register long __sc5 __asm__ ("r5") = (long) arg2; \
 register long __sc6 __asm__ ("r6") = (long) arg3; \
 register long __sc7 __asm__ ("r7") = (long) arg4; \
 register long __sc0 __asm__ ("r0") = (long) arg5; \
-__asm__ __volatile__ ("trapa	#0x15" \
+__asm__ __volatile__ ("trapa	%1" \
 	: "=z" (__sc0) \
-	: "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6), "r" (__sc7),  \
-	  "r" (__sc3) \
+	: "i" (__SH_SYSCALL_TRAP_BASE + 5), "0" (__sc0), "r" (__sc4), \
+          "r" (__sc5), "r" (__sc6), "r" (__sc7), "r" (__sc3) \
 	: "memory" ); \
 __syscall_return(type,__sc0); \
 }
 
-/* Add in _syscall6 which is not in the kernel header */
 #ifndef __SH_SYSCALL6_TRAPA
-# define __SH_SYSCALL6_TRAPA "0x16"
+#define __SH_SYSCALL6_TRAPA __SH_SYSCALL_TRAP_BASE + 6
 #endif
+
+/* Add in _syscall6 which is not in the kernel header */
 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \
 type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \
 { \
@@ -126,10 +137,10 @@ register long __sc6 __asm__ ("r6") = (long) arg3; \
 register long __sc7 __asm__ ("r7") = (long) arg4; \
 register long __sc0 __asm__ ("r0") = (long) arg5; \
 register long __sc1 __asm__ ("r1") = (long) arg6; \
-__asm__ __volatile__ ("trapa	#" __SH_SYSCALL6_TRAPA \
+__asm__ __volatile__ ("trapa	%1" \
 	: "=z" (__sc0) \
-	: "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6), "r" (__sc7), \
-	  "r" (__sc3), "r" (__sc1) \
+	: "i" (__SH_SYSCALL6_TRAPA), "0" (__sc0), "r" (__sc4), \
+          "r" (__sc5), "r" (__sc6), "r" (__sc7), "r" (__sc3), "r" (__sc1) \
 	: "memory" ); \
 __syscall_return(type,__sc0); \
 }

libc/sysdeps/linux/sh/bits/uClibc_arch_features.h

@@ -6,9 +6,9 @@
 #define _BITS_UCLIBC_ARCH_FEATURES_H
 
 /* instruction used when calling abort() to kill yourself */
-#if defined(__sh2__)
+#if defined(__CONFIG_SH2__)
 # define __UCLIBC_ABORT_INSTRUCTION__ "trapa #32"
-#else /* defined(__sh__) */
+#else
 # define __UCLIBC_ABORT_INSTRUCTION__ "trapa #0xff"
 #endif
 

libc/sysdeps/linux/sh/clone.S

@@ -23,6 +23,8 @@
 #include <asm/unistd.h>
 #define _ERRNO_H	1
 #include <bits/errno.h>
+#define _SYSCALL_H
+#include <bits/syscalls.h>
 
 
 #ifdef __HAVE_SHARED__ 
@@ -59,9 +61,9 @@ clone:
 	
 	/* do the system call */
 	mov	r6, r4
-	trapa	#0x12
+	trapa	#(__SH_SYSCALL_TRAP_BASE + 2)
 	mov     r0, r1
-#ifdef __sh2__
+#ifdef __CONFIG_SH2__
 // 12 arithmetic shifts for the crappy sh2, because shad doesn't exist!	
 	shar	r1
 	shar	r1

libc/sysdeps/linux/sh/crti.S

@@ -8,20 +8,21 @@
 	.type	_init, @function
 _init:
 	mov.l	r12,@-r15
-	mova	.L6,r0
 	mov.l	r14,@-r15
 	sts.l	pr,@-r15
+#ifndef __HAVE_SHARED__
+	mova	.L6,r0
 	mov.l	.L6,r12
-	mov	r15,r14
 	add	r0,r12
-	
-	
-	
+#endif	
+	mov	r15,r14
 	bra	1f
 	nop
 	.align 2
+#ifndef __HAVE_SHARED__
 .L6:
 	.long	_GLOBAL_OFFSET_TABLE_
+#endif
 1:
 	
 	.section .fini
@@ -31,19 +32,22 @@ _init:
 	.type	_fini, @function
 _fini:
 	mov.l	r12,@-r15
-	mova	.L11,r0
 	mov.l	r14,@-r15
 	sts.l	pr,@-r15
-	mov.l	.L11,r12
 	mov	r15,r14
+#ifndef __HAVE_SHARED__
+	mov.l	.L11,r12
+	mova	.L11,r0
 	add	r0,r12
-	
-	
+#endif	
+
 	bra	1f
 	nop
 	.align 2
+#ifndef __HAVE_SHARED__
 .L11:
 	.long	_GLOBAL_OFFSET_TABLE_
+#endif
 1:
 	
 	.ident	"GCC: (GNU) 3.3.2"

libc/sysdeps/linux/sh/mmap.c

@@ -26,9 +26,7 @@
 libc_hidden_proto(mmap)
 
 #ifdef HIOS
-# define __SH_SYSCALL6_TRAPA "0x2E"
-#else
-# define __SH_SYSCALL6_TRAPA "0x15"
+# define __SH_SYSCALL6_TRAPA 0x2E
 #endif
 
 #include <sys/syscall.h>

libc/sysdeps/linux/sh/pipe.c

@@ -20,12 +20,13 @@ int pipe(int *fd)
 	__asm__ __volatile__ (
 	"mov	%2,	r3;"
 	"mov	%3,	r4;"
-	"trapa	#0x13;"
+	"trapa	%4;"
 	"mov    r1, %1;"
 	   : "=z" (__res),
 	     "=r" ((long) __res2)
 	   : "r" ((long) __NR_pipe),
-	     "r" ((long) fd)
+	     "r" ((long) fd),
+		 "i" (__SH_SYSCALL_TRAP_BASE + 3)
 	   : "cc", "memory", "r1", "r3", "r4");
 	if ((unsigned long)(__res) >= (unsigned long)(-125)) {
 		int __err = -(__res);

libc/sysdeps/linux/sh/syscall.c

@@ -16,9 +16,11 @@ register long __sc6 __asm__ ("r6") = (long) arg3;
 register long __sc7 __asm__ ("r7") = (long) arg4;
 register long __sc0 __asm__ ("r0") = (long) arg5;
 register long __sc1 __asm__ ("r1") = (long) arg6;
-__asm__ __volatile__ ("trapa	#0x16" \
+__asm__ __volatile__ (
+	"trapa %1"
 	: "=z" (__sc0) \
-	: "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6), "r" (__sc7), \
+	: "i" (__SH_SYSCALL_TRAP_BASE + 6),
+          "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6), "r" (__sc7), \
 	  "r" (__sc3), "r" (__sc1) \
 	: "memory" );
 __syscall_return(long,__sc0);

libc/sysdeps/linux/sh/vfork.S

@@ -25,6 +25,7 @@
 #include <bits/sysnum.h>
 #define _ERRNO_H	1
 #include <bits/errno.h>
+#include <bits/syscalls.h>
 
 /* Clone the calling process, but without copying the whole address space.
    The calling process is suspended until the new process exits or is
@@ -39,9 +40,9 @@
 
 __vfork:
 	mov.w	.L2, r3
-	trapa	#0x10
+	trapa	#__SH_SYSCALL_TRAP_BASE
 	mov     r0, r1
-#ifdef __sh2__
+#ifdef __CONFIG_SH2__
 // 12 arithmetic shifts for the crappy sh2, because shad doesn't exist!	
 	shar	r1
 	shar	r1
@@ -70,9 +71,9 @@ __vfork:
 
 	/* If we don't have vfork, use fork.  */
 	mov.w	.L3, r3
-	trapa	#0x10
+	trapa	#__SH_SYSCALL_TRAP_BASE
 	mov     r0, r1
-#ifdef __sh2__
+#ifdef __CONFIG_SH2__
 // 12 arithmetic shifts for the crappy sh2, because shad doesn't exist!	
 	shar	r1
 	shar	r1