PowerPC: Consolidate NPTL/non versions of clone

ChangeLog

@@ -1,5 +1,13 @@
 2014-05-26  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
 
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S: Remove
+	conditional [RESET_PID].
+	* sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S: Likewise.
+	* nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S: File
+	removed.
+	* nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S: File
+	removed.
+
 	* sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S: Include
 	<tcb-offsets.h>.
 	(__vfork): Incorporate save/restore of PID from nptl/vfork.S here.

nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S

@@ -1,9 +0,0 @@
-/* We want an #include_next, but we are the main source file.
-   So, #include ourselves and in that incarnation we can use #include_next.  */
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <clone.S>
-#else
-# define RESET_PID
-# include_next <clone.S>
-#endif

nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S

@@ -1,9 +0,0 @@
-/* We want an #include_next, but we are the main source file.
-   So, #include ourselves and in that incarnation we can use #include_next.  */
-#ifndef INCLUDED_SELF
-# define INCLUDED_SELF
-# include <clone.S>
-#else
-# define RESET_PID
-# include_next <clone.S>
-#endif

sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S

@@ -44,11 +44,7 @@ ENTRY (__clone)
 	/* Set up stack frame for parent.  */
 	stwu	r1,-32(r1)
 	cfi_adjust_cfa_offset (32)
-#ifdef RESET_PID
 	stmw	r28,16(r1)
-#else
-	stmw	r30,16(r1)
-#endif
 
 	/* Set up stack frame for child.  */
 	clrrwi	r4,r4,4
@@ -57,9 +53,7 @@ ENTRY (__clone)
 
 	/* Save fn, args, stack across syscall.  */
 	mr	r30,r3			/* Function in r30.  */
-#ifdef RESET_PID
 	mr	r28,r5
-#endif
 	mr	r31,r6			/* Argument in r31.  */
 
 	/* 'flags' argument is first parameter to clone syscall. (The other
@@ -83,7 +77,6 @@ ENTRY (__clone)
 	crandc	cr1*4+eq,cr1*4+eq,cr0*4+so
 	bne-	cr1,L(parent)		/* The '-' is to minimise the race.  */
 
-#ifdef RESET_PID
 	andis.	r0,r28,CLONE_THREAD>>16
 	bne+	r0,L(oldpid)
 	andi.	r0,r28,CLONE_VM
@@ -94,7 +87,6 @@ L(nomoregetpid):
 	stw	r3,TID(r2)
 	stw	r3,PID(r2)
 L(oldpid):
-#endif
 
 	/* Call procedure.  */
 	mtctr	r30
@@ -105,11 +97,7 @@ L(oldpid):
 
 L(parent):
 	/* Parent.  Restore registers & return.  */
-#ifdef RESET_PID
 	lmw	r28,16(r1)
-#else
-	lmw	r30,16(r1)
-#endif
 	addi	r1,r1,32
 	bnslr+
 	b	__syscall_error@local

sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S

@@ -41,14 +41,10 @@ ENTRY (__clone)
 	beq-	cr0,L(badargs)
 
 	/* Save some regs in the "red zone".  */
-#ifdef RESET_PID
 	std	r29,-24(r1)
-#endif
 	std	r30,-16(r1)
 	std	r31,-8(r1)
-#ifdef RESET_PID
 	cfi_offset(r29,-24)
-#endif
 	cfi_offset(r30,-16)
 	cfi_offset(r31,-8)
 
@@ -59,15 +55,13 @@ ENTRY (__clone)
 
 	/* Save fn, args, stack across syscall.  */
 	mr	r30,r3			/* Function in r30.  */
-#ifdef RESET_PID
 	mr	r29,r5			/* Flags in r29.  */
-#endif
 	mr	r31,r6			/* Argument in r31.  */
 
 	/* 'flags' argument is first parameter to clone syscall.
 	   Second is the stack pointer, already in r4.  */
 	mr	r3,r5
-  /* Move the parent_tid, child_tid and tls arguments. */
+	/* Move the parent_tid, child_tid and tls arguments. */
 	mr	r5,r7
 	mr	r6,r8
 	mr	r7,r9
@@ -84,7 +78,6 @@ ENTRY (__clone)
 	crandc	cr1*4+eq,cr1*4+eq,cr0*4+so
 	bne-	cr1,L(parent)		/* The '-' is to minimise the race.  */
 
-#ifdef RESET_PID
 	andis.	r0,r29,CLONE_THREAD>>16
 	bne+	cr0,L(oldpid)
 	andi.	r0,r29,CLONE_VM
@@ -95,7 +88,6 @@ L(nomoregetpid):
 	stw	r3,TID(r13)
 	stw	r3,PID(r13)
 L(oldpid):
-#endif
 
 	std	r2,FRAME_TOC_SAVE(r1)
 	/* Call procedure.  */
@@ -120,21 +112,16 @@ L(badargs):
 
 L(parent):
 	/* Parent.  Restore registers & return.  */
-#ifdef RESET_PID
 	cfi_offset(r29,-24)
-#endif
 	cfi_offset(r30,-16)
 	cfi_offset(r31,-8)
-#ifdef RESET_PID
 	ld	r29,-24(r1)
-#endif
 	ld	r30,-16(r1)
 	ld	r31,-8(r1)
-#ifdef RESET_PID
 	cfi_restore(r29)
-#endif
 	cfi_restore(r30)
 	cfi_restore(r31)
+
 	PSEUDO_RET
 
 END (__clone)