Merge branch 'master' of ssh://sourceware.org/git/glibc

Conflicts:
	ChangeLog

4 files changed, 198 insertions, 133 deletions

diff --git a/sysdeps/unix/sparc/sysdep.h b/sysdeps/unix/sparc/sysdep.h
index 24225d9..590b7ab 100644
--- a/sysdeps/unix/sparc/sysdep.h
+++ b/sysdeps/unix/sparc/sysdep.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 1993, 1994, 1995, 1997, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 1993, 1994, 1995, 1997, 2003, 2011
+        Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -17,6 +18,7 @@
    02111-1307 USA.  */
 
 #include <sysdeps/unix/sysdep.h>
+#include <sysdeps/sparc/sysdep.h>
 
 #ifdef	__ASSEMBLER__
 
@@ -27,6 +29,26 @@
 #define	syscall_error	C_SYMBOL_NAME(__syscall_error)
 #endif
 
+#ifdef PIC
+#define SETUP_PIC_REG(reg, tmp)						\
+	.ifndef __sparc_get_pc_thunk.reg;				\
+	.section .text.__sparc_get_pc_thunk.reg,"axG",@progbits,__sparc_get_pc_thunk.reg,comdat; \
+	.align	 32;							\
+	.weak	 __sparc_get_pc_thunk.reg;				\
+	.hidden	 __sparc_get_pc_thunk.reg;				\
+	.type	 __sparc_get_pc_thunk.reg, #function;			\
+__sparc_get_pc_thunk.reg:		   				\
+	jmp	%o7 + 8;						\
+	 add	%o7, %reg, %##reg;					\
+	.previous;							\
+	.endif;								\
+	sethi	%hi(_GLOBAL_OFFSET_TABLE_-4), %##reg;			\
+	mov	%o7, %##tmp;		      				\
+	call	__sparc_get_pc_thunk.reg;				\
+	 or	%##reg, %lo(_GLOBAL_OFFSET_TABLE_+4), %##reg;		\
+	mov	%##tmp, %o7;
+#endif
+
 #ifdef HAVE_ELF
 #define	ENTRY(name)		\
   .global C_SYMBOL_NAME(name);	\
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h b/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h
index 3cb0a48..8af045d 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h
@@ -57,20 +57,14 @@ C_LABEL(name)				\
 
 #define LOC(name)  .L##name
 
-	/* If the offset to __syscall_error fits into a signed 22-bit
-	 * immediate branch offset, the linker will relax the call into
-	 * a normal branch.
-	 */
 #define PSEUDO(name, syscall_name, args)	\
 	.text;					\
-	.globl		__syscall_error;	\
 ENTRY(name);					\
 	LOADSYSCALL(syscall_name);		\
 	ta		0x10;			\
 	bcc		1f;			\
-	 mov		%o7, %g1;		\
-	call		__syscall_error;	\
-	 mov		%g1, %o7;		\
+	 nop;					\
+	SYSCALL_ERROR_HANDLER			\
 1:
 
 #define PSEUDO_NOERRNO(name, syscall_name, args)\
@@ -88,50 +82,70 @@ ENTRY(name);					\
 #define PSEUDO_END(name)			\
 	END(name)
 
-#else  /* __ASSEMBLER__ */
-
-#if defined SHARED && defined DO_VERSIONING && defined PIC \
-    && !defined NO_HIDDEN && !defined NOT_IN_libc
-# define CALL_ERRNO_LOCATION "call   __GI___errno_location;"
+#ifndef PIC
+# define SYSCALL_ERROR_HANDLER			\
+	mov	%o7, %g1;			\
+	call	__syscall_error;		\
+	 mov	%g1, %o7;
 #else
-# define CALL_ERRNO_LOCATION "call   __errno_location;"
-#endif
+# if RTLD_PRIVATE_ERRNO
+#  define SYSCALL_ERROR_HANDLER			\
+0:	SETUP_PIC_REG(o2,g1)			\
+	sethi	%hi(rtld_errno), %g1;		\
+	or	%g1, %lo(rtld_errno), %g1;	\
+	ld	[%o2 + %g1], %g1;		\
+	st	%o0, [%g1];			\
+	jmp	%o7 + 8;			\
+	 mov	-1, %o0;
+# elif defined _LIBC_REENTRANT
+
+#  if USE___THREAD
+#   ifndef NOT_IN_libc
+#    define SYSCALL_ERROR_ERRNO __libc_errno
+#   else
+#    define SYSCALL_ERROR_ERRNO errno
+#   endif
+#   define SYSCALL_ERROR_HANDLER				\
+0:	SETUP_PIC_REG(o2,g1)					\
+	sethi	%tie_hi22(SYSCALL_ERROR_ERRNO), %g1;		\
+	add	%g1, %tie_lo10(SYSCALL_ERROR_ERRNO), %g1;	\
+	ld	[%o2 + %g1], %g1, %tie_ld(SYSCALL_ERROR_ERRNO);	\
+	st	%o0, [%g7 + %g1]; 				\
+	jmp	%o7 + 8;    					\
+	 mov	-1, %o0;
+#  else
+#  define SYSCALL_ERROR_HANDLER		\
+0:	save	%sp, -96, %sp;		\
+	cfi_def_cfa_register(%fp);	\
+	cfi_window_save;		\
+	cfi_register (%o7, %i7);	\
+	call	__errno_location;	\
+	 nop;				\
+	st	%i0, [%o0];		\
+	jmp	%i7 + 8;		\
+	 restore %g0, -1, %o0;
+#  endif
+# else
+#  define SYSCALL_ERROR_HANDLER		\
+0:	SETUP_PIC_REG(o2,g1)		\
+	sethi	%hi(errno), %g1;	\
+	or	%g1, %lo(errno), %g1;	\
+	ld	[%o2 + %g1], %g1;	\
+	st	%o0, [%g1];		\
+	jmp	%o7 + 8;		\
+	 mov	-1, %o0;
+# endif	/* _LIBC_REENTRANT */
+#endif	/* PIC */
+
+
+#else  /* __ASSEMBLER__ */
 
 #define __SYSCALL_STRING						\
 	"ta	0x10;"							\
-	"bcs	2f;"							\
-	" nop;"								\
-	"1:"								\
-	".subsection 2;"						\
-	"2:"								\
-	"save	%%sp, -192, %%sp;"					\
-	CALL_ERRNO_LOCATION						\
-	" nop;"								\
-	"st	%%i0,[%%o0];"						\
-	"ba	1b;"							\
-	" restore %%g0, -1, %%o0;"					\
-	".previous;"
-
-#define __CLONE_SYSCALL_STRING						\
-	"ta	0x10;"							\
-	"bcs	2f;"							\
-	" sub	%%o1, 1, %%o1;"						\
-	"and	%%o0, %%o1, %%o0;"					\
-	"1:"								\
-	".subsection 2;"						\
-	"2:"								\
-	"save	%%sp, -192, %%sp;"					\
-	CALL_ERRNO_LOCATION						\
-	" nop;"								\
-	"st	%%i0, [%%o0];"						\
-	"ba	1b;"							\
-	" restore %%g0, -1, %%o0;"					\
-	".previous;"
-
-#define __INTERNAL_SYSCALL_STRING					\
-	"ta	0x10;"							\
-	"bcs,a	1f;"							\
-	" sub	%%g0, %%o0, %%o0;"					\
+	"bcc	1f;"							\
+	" mov	0, %%g1;"						\
+	"sub	%%g0, %%o0, %%o0;"					\
+	"mov	1, %%g1;"						\
 	"1:"
 
 #define __SYSCALL_CLOBBERS						\
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h b/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
index 79fa13d..bdd1d45 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
@@ -21,7 +21,7 @@
 #ifndef _LINUX_SPARC64_SYSDEP_H
 #define _LINUX_SPARC64_SYSDEP_H 1
 
-#include <sysdeps/unix/sysdep.h>
+#include <sysdeps/unix/sparc/sysdep.h>
 
 #ifdef IS_IN_rtld
 # include <dl-sysdep.h>		/* Defines RTLD_PRIVATE_ERRNO.  */
@@ -64,20 +64,14 @@ C_LABEL(name)				\
 	cfi_endproc;			\
 	.size name, . - name
 
-	/* If the offset to __syscall_error fits into a signed 22-bit
-	 * immediate branch offset, the linker will relax the call into
-	 * a normal branch.
-	 */
 #define PSEUDO(name, syscall_name, args)	\
 	.text;					\
-	.globl		__syscall_error;	\
 ENTRY(name);					\
 	LOADSYSCALL(syscall_name);		\
 	ta		0x6d;			\
 	bcc,pt		%xcc, 1f;		\
-	 mov		%o7, %g1;		\
-	call		__syscall_error;	\
-	 mov		%g1, %o7;		\
+	 nop;					\
+	SYSCALL_ERROR_HANDLER			\
 1:
 
 #define	PSEUDO_NOERRNO(name, syscall_name, args)\
@@ -95,51 +89,69 @@ ENTRY(name);					\
 #define PSEUDO_END(name)			\
 	END(name)
 
-
-/* Careful here!  This "ret" define can interfere; use jmpl if unsure.  */
-#define ret		retl; nop
-#define ret_NOERRNO	retl; nop
-#define ret_ERRVAL	retl; nop
-#define r0              %o0
-#define r1              %o1
-#define MOVE(x,y)       mov x, y
+#ifndef PIC
+# define SYSCALL_ERROR_HANDLER			\
+	mov	%o7, %g1;			\
+	call	__syscall_error;		\
+	 mov	%g1, %o7;
+#else
+# if RTLD_PRIVATE_ERRNO
+#  define SYSCALL_ERROR_HANDLER			\
+0:	SETUP_PIC_REG(o2,g1)			\
+	sethi	%hi(rtld_errno), %g1;		\
+	or	%g1, %lo(rtld_errno), %g1;	\
+	ldx	[%o2 + %g1], %g1;		\
+	st	%o0, [%g1];			\
+	jmp	%o7 + 8;			\
+	 mov	-1, %o0;
+# elif defined _LIBC_REENTRANT
+
+#  if USE___THREAD
+#   ifndef NOT_IN_libc
+#    define SYSCALL_ERROR_ERRNO __libc_errno
+#   else
+#    define SYSCALL_ERROR_ERRNO errno
+#   endif
+#   define SYSCALL_ERROR_HANDLER				\
+0:	SETUP_PIC_REG(o2,g1)					\
+	sethi	%tie_hi22(SYSCALL_ERROR_ERRNO), %g1;		\
+	add	%g1, %tie_lo10(SYSCALL_ERROR_ERRNO), %g1;	\
+	ldx	[%o2 + %g1], %g1, %tie_ldx(SYSCALL_ERROR_ERRNO);\
+	st	%o0, [%g7 + %g1]; 				\
+	jmp	%o7 + 8;    					\
+	 mov	-1, %o0;
+#  else
+#  define SYSCALL_ERROR_HANDLER		\
+0:	save	%sp, -176, %sp;		\
+	cfi_def_cfa_register(%fp);	\
+	cfi_window_save;		\
+	cfi_register (%o7, %i7);	\
+	call	__errno_location;	\
+	 nop;				\
+	st	%i0, [%o0];		\
+	jmp	%i7 + 8;		\
+	 restore %g0, -1, %o0;
+#  endif
+# else
+#  define SYSCALL_ERROR_HANDLER		\
+0:	SETUP_PIC_REG(o2,g1)		\
+	sethi	%hi(errno), %g1;	\
+	or	%g1, %lo(errno), %g1;	\
+	ldx	[%o2 + %g1], %g1;	\
+	st	%o0, [%g1];		\
+	jmp	%o7 + 8;		\
+	 mov	-1, %o0;
+# endif	/* _LIBC_REENTRANT */
+#endif	/* PIC */
 
 #else  /* __ASSEMBLER__ */
 
-#if defined SHARED && defined DO_VERSIONING && defined PIC \
-    && !defined NO_HIDDEN && !defined NOT_IN_libc
-# define CALL_ERRNO_LOCATION "call   __GI___errno_location;"
-#else
-# define CALL_ERRNO_LOCATION "call   __errno_location;"
-#endif
-
 #define __SYSCALL_STRING						\
 	"ta	0x6d;"							\
 	"bcc,pt	%%xcc, 1f;"						\
-	" nop;"								\
-	"save	%%sp, -192, %%sp;"					\
-	CALL_ERRNO_LOCATION						\
-	" nop;"								\
-	"st	%%i0,[%%o0];"						\
-	"restore %%g0, -1, %%o0;"					\
-	"1:"
-
-#define __CLONE_SYSCALL_STRING						\
-	"ta	0x6d;"							\
-	"bcc,pt	%%xcc, 1f;"						\
-	" sub	%%o1, 1, %%o1;"						\
-	"save	%%sp, -192, %%sp;"					\
-	CALL_ERRNO_LOCATION						\
-	" mov	-1, %%i1;"						\
-	"st	%%i0,[%%o0];"						\
-	"restore %%g0, -1, %%o0;"					\
-	"1:"								\
-	"and	%%o0, %%o1, %%o0"
-
-#define __INTERNAL_SYSCALL_STRING					\
-	"ta	0x6d;"							\
-	"bcs,a,pt %%xcc, 1f;"						\
-	" sub	%%g0, %%o0, %%o0;"					\
+	" mov	0, %%g1;"						\
+	"sub	%%g0, %%o0, %%o0;"					\
+	"mov	1, %%g1;"						\
 	"1:"
 
 #define __SYSCALL_CLOBBERS						\
diff --git a/sysdeps/unix/sysv/linux/sparc/sysdep.h b/sysdeps/unix/sysv/linux/sparc/sysdep.h
index 101638a..f69e1a9 100644
--- a/sysdeps/unix/sysv/linux/sparc/sysdep.h
+++ b/sysdeps/unix/sysv/linux/sparc/sysdep.h
@@ -21,101 +21,109 @@
 #define _LINUX_SPARC_SYSDEP_H 1
 
 #undef INLINE_SYSCALL
-#define INLINE_SYSCALL(name, nr, args...) \
-  inline_syscall##nr(__SYSCALL_STRING, __NR_##name, args)
+#define INLINE_SYSCALL(name, nr, args...) 				\
+({	INTERNAL_SYSCALL_DECL(err);  					\
+	unsigned int resultvar = INTERNAL_SYSCALL(name, err, nr, args);	\
+	if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (resultvar, err), 0)) \
+	  {		     			       		   	\
+	    __set_errno (INTERNAL_SYSCALL_ERRNO (resultvar, err));	\
+	    resultvar = 0xffffffff;			    		\
+	  } 	      							\
+	(int) resultvar;						\
+})
 
 #undef INTERNAL_SYSCALL_DECL
-#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
+#define INTERNAL_SYSCALL_DECL(err) \
+	register long err __asm__("g1");
 
 #undef INTERNAL_SYSCALL
 #define INTERNAL_SYSCALL(name, err, nr, args...) \
-  inline_syscall##nr(__INTERNAL_SYSCALL_STRING, __NR_##name, args)
+  inline_syscall##nr(__SYSCALL_STRING, err, __NR_##name, args)
 
 #undef INTERNAL_SYSCALL_NCS
 #define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
-  inline_syscall##nr(__INTERNAL_SYSCALL_STRING, name, args)
+  inline_syscall##nr(__SYSCALL_STRING, err, name, args)
 
 #undef INTERNAL_SYSCALL_ERROR_P
-#define INTERNAL_SYSCALL_ERROR_P(val, err) \
-  ((unsigned long) (val) >= -515L)
+#define INTERNAL_SYSCALL_ERROR_P(val, err) ((err) != 0)
 
 #undef INTERNAL_SYSCALL_ERRNO
 #define INTERNAL_SYSCALL_ERRNO(val, err)	(-(val))
 
-#define inline_syscall0(string,name,dummy...)				\
+#define inline_syscall0(string,err,name,dummy...)			\
 ({									\
 	register long __o0 __asm__ ("o0");				\
-	register long __g1 __asm__ ("g1") = name;			\
-	__asm __volatile (string : "=r" (__g1), "=r" (__o0) :		\
-			  "0" (__g1) :					\
+	err = name;							\
+	__asm __volatile (string : "=r" (err), "=r" (__o0) :		\
+			  "0" (err) :					\
 			  __SYSCALL_CLOBBERS);				\
 	__o0;								\
 })
 
-#define inline_syscall1(string,name,arg1)				\
+#define inline_syscall1(string,err,name,arg1)				\
 ({									\
 	register long __o0 __asm__ ("o0") = (long)(arg1);		\
-	register long __g1 __asm__ ("g1") = name;			\
-	__asm __volatile (string : "=r" (__g1), "=r" (__o0) :		\
-			  "0" (__g1), "1" (__o0) :			\
+	err = name;							\
+	__asm __volatile (string : "=r" (err), "=r" (__o0) :		\
+			  "0" (err), "1" (__o0) :			\
 			  __SYSCALL_CLOBBERS);				\
 	__o0;								\
 })
 
-#define inline_syscall2(string,name,arg1,arg2)				\
+#define inline_syscall2(string,err,name,arg1,arg2)			\
 ({									\
 	register long __o0 __asm__ ("o0") = (long)(arg1);		\
 	register long __o1 __asm__ ("o1") = (long)(arg2);		\
-	register long __g1 __asm__ ("g1") = name;			\
-	__asm __volatile (string : "=r" (__g1), "=r" (__o0) :		\
-			  "0" (__g1), "1" (__o0), "r" (__o1) :		\
+	err = name;							\
+	__asm __volatile (string : "=r" (err), "=r" (__o0) :		\
+			  "0" (err), "1" (__o0), "r" (__o1) :		\
 			  __SYSCALL_CLOBBERS);				\
 	__o0;								\
 })
 
-#define inline_syscall3(string,name,arg1,arg2,arg3)			\
+#define inline_syscall3(string,err,name,arg1,arg2,arg3)			\
 ({									\
 	register long __o0 __asm__ ("o0") = (long)(arg1);		\
 	register long __o1 __asm__ ("o1") = (long)(arg2);		\
 	register long __o2 __asm__ ("o2") = (long)(arg3);		\
-	register long __g1 __asm__ ("g1") = name;			\
-	__asm __volatile (string : "=r" (__g1), "=r" (__o0) :		\
-			  "0" (__g1), "1" (__o0), "r" (__o1),		\
+	err = name;							\
+	__asm __volatile (string : "=r" (err), "=r" (__o0) :		\
+			  "0" (err), "1" (__o0), "r" (__o1),		\
 			  "r" (__o2) :					\
 			  __SYSCALL_CLOBBERS);				\
 	__o0;								\
 })
 
-#define inline_syscall4(string,name,arg1,arg2,arg3,arg4)		\
+#define inline_syscall4(string,err,name,arg1,arg2,arg3,arg4)		\
 ({									\
 	register long __o0 __asm__ ("o0") = (long)(arg1);		\
 	register long __o1 __asm__ ("o1") = (long)(arg2);		\
 	register long __o2 __asm__ ("o2") = (long)(arg3);		\
 	register long __o3 __asm__ ("o3") = (long)(arg4);		\
-	register long __g1 __asm__ ("g1") = name;			\
-	__asm __volatile (string : "=r" (__g1), "=r" (__o0) :		\
-			  "0" (__g1), "1" (__o0), "r" (__o1),		\
+	err = name;							\
+	__asm __volatile (string : "=r" (err), "=r" (__o0) :		\
+			  "0" (err), "1" (__o0), "r" (__o1),		\
 			  "r" (__o2), "r" (__o3) :			\
 			  __SYSCALL_CLOBBERS);				\
 	__o0;								\
 })
 
-#define inline_syscall5(string,name,arg1,arg2,arg3,arg4,arg5)		\
+#define inline_syscall5(string,err,name,arg1,arg2,arg3,arg4,arg5)	\
 ({									\
 	register long __o0 __asm__ ("o0") = (long)(arg1);		\
 	register long __o1 __asm__ ("o1") = (long)(arg2);		\
 	register long __o2 __asm__ ("o2") = (long)(arg3);		\
 	register long __o3 __asm__ ("o3") = (long)(arg4);		\
 	register long __o4 __asm__ ("o4") = (long)(arg5);		\
-	register long __g1 __asm__ ("g1") = name;			\
-	__asm __volatile (string : "=r" (__g1), "=r" (__o0) :		\
-			  "0" (__g1), "1" (__o0), "r" (__o1),		\
+	err = name;							\
+	__asm __volatile (string : "=r" (err), "=r" (__o0) :		\
+			  "0" (err), "1" (__o0), "r" (__o1),		\
 			  "r" (__o2), "r" (__o3), "r" (__o4) :		\
 			  __SYSCALL_CLOBBERS);				\
 	__o0;								\
 })
 
-#define inline_syscall6(string,name,arg1,arg2,arg3,arg4,arg5,arg6)	\
+#define inline_syscall6(string,err,name,arg1,arg2,arg3,arg4,arg5,arg6)	\
 ({									\
 	register long __o0 __asm__ ("o0") = (long)(arg1);		\
 	register long __o1 __asm__ ("o1") = (long)(arg2);		\
@@ -123,9 +131,9 @@
 	register long __o3 __asm__ ("o3") = (long)(arg4);		\
 	register long __o4 __asm__ ("o4") = (long)(arg5);		\
 	register long __o5 __asm__ ("o5") = (long)(arg6);		\
-	register long __g1 __asm__ ("g1") = name;			\
-	__asm __volatile (string : "=r" (__g1), "=r" (__o0) :		\
-			  "0" (__g1), "1" (__o0), "r" (__o1),		\
+	err = name;							\
+	__asm __volatile (string : "=r" (err), "=r" (__o0) :		\
+			  "0" (err), "1" (__o0), "r" (__o1),		\
 			  "r" (__o2), "r" (__o3), "r" (__o4),		\
 			  "r" (__o5) :					\
 			  __SYSCALL_CLOBBERS);				\
@@ -140,11 +148,20 @@
 	register long __o3 __asm__ ("o3") = (long)(arg4);		\
 	register long __o4 __asm__ ("o4") = (long)(arg5);		\
 	register long __g1 __asm__ ("g1") = __NR_clone;			\
-	__asm __volatile (__CLONE_SYSCALL_STRING :			\
+	__asm __volatile (__SYSCALL_STRING :				\
 			  "=r" (__g1), "=r" (__o0), "=r" (__o1)	:	\
 			  "0" (__g1), "1" (__o0), "2" (__o1),		\
 			  "r" (__o2), "r" (__o3), "r" (__o4) :		\
 			  __SYSCALL_CLOBBERS);				\
+	if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (__o0, __g1), 0)) \
+	  {		     			       		   	\
+	    __set_errno (INTERNAL_SYSCALL_ERRNO (__o0, __g1));		\
+	    __o0 = -1L;			    				\
+	  } 	      							\
+	else								\
+	  { 	      							\
+	    __o0 &= (__o1 - 1);						\
+	  } 	    	    						\
 	__o0;								\
 })