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authorUlrich Drepper <drepper@redhat.com>1997-03-31 22:56:24 +0000
committerUlrich Drepper <drepper@redhat.com>1997-03-31 22:56:24 +0000
commit5929563ff20245bbaa1b3ca2f4bfcee623ac6fb5 (patch)
tree15b1ff0a40462018402078788148c0c99d188429 /sysdeps/unix/sysv/linux/powerpc/clone.S
parent3075e0e37c0e7cc2e6eb518c409e0769d058ed4b (diff)
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1997-04-01 00:37  Ulrich Drepper  <drepper@cygnus.com>

	* math/Makefile: Prevent inlining for test-{float,double,longdouble}.
	* math/libm-test.c (initialize): Make strings unique and force
	values to memory.

	* posix/regex.c: Debug debugging code.

	* sysdeps/i386/asm-syntax.h: Define `L' macro to emit correct
	syntax for local label.
	* sysdeps/i386/add_n.S: Use correct local label syntax for the
	binary format.
	* sysdeps/i386/addmul_1.S: Likewise.
	* sysdeps/i386/lshift.S: Likewise.
	* sysdeps/i386/memchr.S: Likewise.
	* sysdeps/i386/memset.S: Likewise.
	* sysdeps/i386/mul_1.S: Likewise.
	* sysdeps/i386/rshift.S: Likewise.
	* sysdeps/i386/stpcpy.S: Likewise.
	* sysdeps/i386/stpncpy.S: Likewise.
	* sysdeps/i386/strchr.S: Likewise.
	* sysdeps/i386/strcspn.S: Likewise.
	* sysdeps/i386/strlen.S: Likewise.
	* sysdeps/i386/strpbrk.S: Likewise.
	* sysdeps/i386/strrchr.S: Likewise.
	* sysdeps/i386/strspn.S: Likewise.
	* sysdeps/i386/strtok.S: Likewise.
	* sysdeps/i386/sub_n.S: Likewise.
	* sysdeps/i386/submul_1.S: Likewise.
	* sysdeps/i386/i486/strcat.S: Likewise.
	* sysdeps/i386/i486/strlen.S: Likewise.
	* sysdeps/i386/i586/add_n.S: Likewise.
	* sysdeps/i386/i586/addmul_1.S: Likewise.
	* sysdeps/i386/i586/lshift.S: Likewise.
	* sysdeps/i386/i586/memset.S: Likewise.
	* sysdeps/i386/i586/mul_1.S: Likewise.
	* sysdeps/i386/i586/rshift.S: Likewise.
	* sysdeps/i386/i586/strchr.S: Likewise.
	* sysdeps/i386/i586/strlen.S: Likewise.
	* sysdeps/i386/i586/sub_n.S: Likewise.
	* sysdeps/i386/i586/submul_1.S: Likewise.

	* sysdeps/stub/s_log2l.c: Correct function name.

	* time/africa: Updated from ADO tzdata1997e.
	* time/aantarctica: Likewise.
	* time/asia: Likewise.
	* time/australia: Likewise.
	* time/europe: Likewise.
	* time/northamerica: Likewise.
	* time/southamerica: Likewise.
	* time/private.h: Updated from ADO tzcode1997d.
	* time/scheck.c: Likewise.

1997-03-31 12:42  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/powerpc/Dist: Add kernel_*.h files.

1997-03-23 01:41  Geoff Keating  <geoffk@ozemail.com.au>

	* sysdeps/powerpc/strlen.s: Rewrote for more speed.
	* string/tst-strlen.c: Also test various string alignments.

1997-03-19 06:11  Geoff Keating  <geoffk@ozemail.com.au>

	* sysdeps/unix/sysv/linux/powerpc/statbuf.h: Removed.
	* sysdeps/unix/sysv/linux/powerpc/kernel_stat.h: Added.

	* sysdeps/powerpc/dl-machine.h (ELF_PREFERRED_ADDRESS): Assume
	program base address is 0x01800000 if we can't otherwise tell what
	it is.
	(elf_machine_rela): Replace `assertion failed' with real error
	messages.

	* sysdeps/powerpc/dl-machine.h: More comments, more GNU indenting.
	Put in extra parentheses to make explicit the relative precedence
	of + and >>.

	* sysdeps/powerpc/bsd-setjmp.S: Add `__setjmp' symbol so the tests
	pass.
	* sysdeps/powerpc/clone.S: Rewrite.  Probably still doesn't work.

	* sysdeps/unix/sysv/linux/powerpc/sys/sysdep.h: Use .section "text"
	instead of .text.

1997-03-31 02:28  Ulrich Drepper  <drepper@cygnus.com>

	* misc/tst-tsearch.c: Don't write to stderr, write to stdout
	instead.

	* inet/inet_ntoa.c (inet_ntoa): Complete rewrite.  Now uses
	thread-specific memory in multi-threaded programs.

	* sysdeps/stub/s_exp2.c: New file.  Stub version for exp2 function.
	* sysdeps/stub/s_exp2f.c: New file.
	* sysdeps/stub/s_exp2l.c: New file.
	Reported by a sun <asun@zoology.washington.edu>.

	* sysdeps/unix/sysv/linux/netatalk/atalk.h: Rename to...
	* sysdeps/unix/sysv/linux/netatalk/at.h: ...this.
	Suggested by a sun <asun@zoology.washington.edu>.

1997-03-30 14:53  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/netinet/ip_icmp.h: Add former contents
	of <netinet/icmp.h>.
	Patch by a sun <asun@zoology.washington.edu>.

	* sysdeps/powerpc/strlen.S: Added.
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/clone.S')
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/clone.S48
1 files changed, 30 insertions, 18 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/clone.S b/sysdeps/unix/sysv/linux/powerpc/clone.S
index 0afd0717f4..d255abfe0f 100644
--- a/sysdeps/unix/sysv/linux/powerpc/clone.S
+++ b/sysdeps/unix/sysv/linux/powerpc/clone.S
@@ -27,22 +27,30 @@
 
 /* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
 
-ENTRY(clone)
+ENTRY(__clone)
 	/* Set up stack frame, save registers.  */
-	stwu 1,-20(1)
+	stwu 1,-32(1)
 	stw 31,16(1)
+	stw 30,20(1)
 
-	/* Check for child_stack == NULL, fn == NULL.  */
-	mr. 31,4
+	/* Check for child_stack == NULL || fn == NULL.  */
+	cmpwi 0,4,0
 	cmpwi 1,3,0
 	cror 2+0*4,2+0*4,2+1*4
 	beq- 0,badargs
 
-	/* Save 'fn' and its argument on the new stack.  */
-	stw 3,0(4)
-	stw 6,4(4)
+	/* Set up stack frame for child.  */
+	addi 4,4,-16
+	clrrwi 4,4,4
+	li 0,0
+	stw 0,0(4)
 
-	/* 'flags' argument is (only) parameter to clone syscall.  */
+	/* Save new stack, fn, args across syscall.  */
+	mr 30,3		/* Function in r30.  */
+	mr 31,6		/* Arguments in r31.  */
+
+	/* 'flags' argument is first parameter to clone syscall. (The other
+	   argument is the stack pointer, already in r4.)  */
 	mr 3,5
 
 	/* Do the call.  */
@@ -51,22 +59,22 @@ ENTRY(clone)
 	beq child
 
 	/* Parent.  Restore registers & return.  */
-	lwz 31,20(1)
-	addi 1,1,20
+	lwz 31,16(1)
+	lwz 30,20(1)
+	addi 1,1,32
 	blr
 
 child:
-	/* Get address of procedure to call.  */
-	lwz 0,0(31)
-	/* Set up argument register.  */
-	lwz 3,4(31)
-	mtlr 0
-	/* Switch to new stack.  */
-	mr 1,31
 	/* Call procedure.  */
+	mtlr 30
+	mr 3,31
 	blrl
 	/* Call _exit with result from procedure.  */
-	DO_CALL (SYS_ify (exit))
+#ifdef PIC
+	b _exit@plt
+#else
+	b _exit
+#endif
 
 badargs:
 	li 3,-EINVAL
@@ -76,3 +84,7 @@ error:
 #else
 	b __syscall_error
 #endif
+
+PSEUDO_END (__clone)
+
+weak_alias (__clone, clone)