Update.

2003-07-14  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/kernel-features.h: Define
	__ASSUME_TGKILL for Alpha appropriately.

4 files changed, 31 insertions, 7 deletions

diff --git a/sysdeps/unix/sysv/linux/futimes.c b/sysdeps/unix/sysv/linux/futimes.c
index bb1f045df5..97a917318e 100644
--- a/sysdeps/unix/sysv/linux/futimes.c
+++ b/sysdeps/unix/sysv/linux/futimes.c
@@ -36,7 +36,7 @@ __futimes (int fd, const struct timeval tvp[2])
   static const char selffd[] = "/proc/self/fd/";
   char fname[sizeof (selffd) + 3 * sizeof (int)];
   fname[sizeof (fname) - 1] = '\0';
-  char *cp = _itoa_word (fd, fname + sizeof (fname) - 1, 10, 0);
+  char *cp = _itoa_word ((unsigned int) fd, fname + sizeof (fname) - 1, 10, 0);
   cp = memcpy (cp - sizeof (selffd) + 1, selffd, sizeof (selffd) - 1);
 
 #ifdef __NR_utimes
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 3dba1de24f..e78c959529 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -234,6 +234,12 @@
 # define __ASSUME_NEW_PRCTL_SYSCALL		1
 #endif
 
+/* Starting with 2.4.21 the PowerPC32 clone syscall works as expected.  */
+#if __LINUX_KERNEL_VERSION >= (132096+21) && defined __powerpc__ \
+    && !defined __powerpc64__
+# define __ASSUME_FIXED_CLONE_SYSCALL		1
+#endif
+
 /* Starting with 2.4.21 PowerPC64 implements the new rt_sigreturn syscall.
    The new rt_sigreturn takes an ucontext pointer allowing rt_sigreturn
    to be used in the set/swapcontext implementation.  */
@@ -341,8 +347,11 @@
 # define __ASSUME_CORRECT_SI_PID	1
 #endif
 
-/* The tgkill syscall was instroduced for i386 in 2.5.75.  */
-#if __LINUX_KERNEL_VERSION >= 132427 && defined __i386__
+/* The tgkill syscall was instroduced for i386 in 2.5.75.  For Alpha
+   it was introduced in 2.6.0-test1 which unfortunately cannot be
+   distinguished from 2.6.0.  */
+#if (__LINUX_KERNEL_VERSION >= 132427 && defined __i386__) \
+    || (__LINUX_KERNEL_VERSION >= 132609 && defined __alpha__) \
 # define __ASSUME_TGKILL	1
 #endif
 
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S
index 3bfd025984..11768bcbb7 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S
@@ -20,6 +20,7 @@
 #include <sysdep.h>
 #define _ERRNO_H	1
 #include <bits/errno.h>
+#include <kernel-features.h>
 #include <bp-sym.h>
 #include <bp-asm.h>
 
@@ -44,7 +45,11 @@ ENTRY (BP_SYM (__clone))
 
 	/* Set up stack frame for parent.  */
 	stwu	r1,-32(r1)
+#ifndef __ASSUME_FIXED_CLONE_SYSCALL
 	stmw	r29,16(r1)
+#else
+	stmw	r30,16(r1)
+#endif
 
 	/* Set up stack frame for child.  */
 	clrrwi	r4,r4,4
@@ -52,8 +57,10 @@ ENTRY (BP_SYM (__clone))
 	stwu	r0,-16(r4)
 
 	/* Save fn, args, stack across syscall.  */
-	mr	r29,r3			/* Function in r29.  */
-	mr	r30,r4			/* Stack pointer in r30.  */
+	mr	r30,r3			/* Function in r30.  */
+#ifndef __ASSUME_FIXED_CLONE_SYSCALL
+	mr	r29,r4			/* Stack pointer in r29.  */
+#endif
 	mr	r31,r6			/* Argument in r31.  */
 
 	/* 'flags' argument is first parameter to clone syscall. (The other
@@ -73,13 +80,16 @@ ENTRY (BP_SYM (__clone))
 	crandc	cr1*4+eq,cr1*4+eq,cr0*4+so
 	bne-	cr1,L(parent)		/* The '-' is to minimise the race.  */
 
+#ifndef __ASSUME_FIXED_CLONE_SYSCALL
 	/* On at least mklinux DR3a5, clone() doesn't actually change
 	   the stack pointer.  I'm pretty sure this is a bug, because
 	   it adds a race condition if a signal is sent to a thread
 	   just after it is created (in the previous three instructions).  */
-	mr	r1,r30
+	mr	r1,r29
+#endif
+
 	/* Call procedure.  */
-	mtctr	r29
+	mtctr	r30
 	mr	r3,r31
 	bctrl
 	/* Call _exit with result from procedure.  */
@@ -87,7 +97,11 @@ ENTRY (BP_SYM (__clone))
 
 L(parent):
 	/* Parent.  Restore registers & return.  */
+#ifndef __ASSUME_FIXED_CLONE_SYSCALL
 	lmw	r29,16(r1)
+#else
+	lmw	r30,16(r1)
+#endif
 	addi	r1,r1,32
 	bnslr+
 	b	JUMPTARGET(__syscall_error)
diff --git a/sysdeps/unix/sysv/linux/utimes.c b/sysdeps/unix/sysv/linux/utimes.c
index 57b82f9237..6e08c95397 100644
--- a/sysdeps/unix/sysv/linux/utimes.c
+++ b/sysdeps/unix/sysv/linux/utimes.c
@@ -20,6 +20,7 @@
 #include <stddef.h>
 #include <utime.h>
 #include <sys/time.h>
+#include <sysdep.h>
 #include "kernel-features.h"