GNU C Library master sources branch master updated. glibc-2.26.9000-1012-g3bb1ef5

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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=3bb1ef58b989012f8199b82af6ec136da2f9fda3

commit 3bb1ef58b989012f8199b82af6ec136da2f9fda3
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Thu Dec 14 09:05:46 2017 -0200

    ia64: Fix memchr for large input sizes (BZ #22603)
    
    Current optimized ia64 memchr uses a strategy to check for last address
    by adding the input one with expected size.  However it does not take
    care for possible overflow.
    
    It was triggered by 3038145ca23 where default rawmemchr now uses memchr
    (p, c, (size_t)-1).
    
    This patch fixes it by implement a satured addition where overflows
    sets the maximum pointer size to UINTPTR_MAX.
    
    Checked on ia64-linux-gnu where it fixes both stratcliff and
    test-rawmemchr failures.
    
    	Adhemerval Zanella  <adhemerval.zanella@linaro.org>
    	James Clarke <jrtc27@jrtc27.com>
    
    	[BZ #22603]
    	* sysdeps/ia64/memchr.S (__memchr): Avoid overflow in pointer
    	addition.

diff --git a/ChangeLog b/ChangeLog
index b608b24..4b88a86 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,11 @@
 2017-12-19  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
+	    James Clarke <jrtc27@jrtc27.com>
+
+	[BZ #22603]
+	* sysdeps/ia64/memchr.S (__memchr): Avoid overflow in pointer
+	addition.
+
+2017-12-19  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 
 	[BZ #22605]
 	* sysdeps/unix/sysv/linux/sh/clone.S (__clone): Fix exit return
diff --git a/sysdeps/ia64/memchr.S b/sysdeps/ia64/memchr.S
index d60cf7b..9a0abc6 100644
--- a/sysdeps/ia64/memchr.S
+++ b/sysdeps/ia64/memchr.S
@@ -67,6 +67,10 @@ ENTRY(__memchr)
 	.body
 	mov	ret0 = str
 	add	last = str, in2		// last byte
+	;;
+	cmp.ltu	p6, p0 = last, str
+	;;
+(p6)	mov	last = -1
 	and	tmp = 7, str		// tmp = str % 8
 	cmp.ne	p7, p0 = r0, r0		// clear p7
 	extr.u	chr = in1, 0, 8		// chr = (unsigned char) in1

http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=554e3d51efdd7d15c15876b80a7cba3ad9b6a738

commit 554e3d51efdd7d15c15876b80a7cba3ad9b6a738
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Thu Dec 14 10:07:44 2017 -0200

    sh: Fix clone exit return code (BZ #22605)
    
    Since 3f823e87cc (Call exit directly in clone (BZ #21512)) SH clone
    implementation fails to set the exit code resulting in the failures:
    
    FAIL: nptl/tst-align-clone
    FAIL: nptl/tst-getpid1
    
    This patch fixes the both testcases.
    
    	[BZ #22605]
    	* sysdeps/unix/sysv/linux/sh/clone.S (__clone): Fix exit return
    	code.
    
    Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>

diff --git a/ChangeLog b/ChangeLog
index c408eb2..b608b24 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2017-12-19  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
+
+	[BZ #22605]
+	* sysdeps/unix/sysv/linux/sh/clone.S (__clone): Fix exit return
+	code.
+
 2017-12-19  H.J. Lu  <hongjiu.lu@intel.com>
 
 	[BZ #22563]
diff --git a/sysdeps/unix/sysv/linux/sh/clone.S b/sysdeps/unix/sysv/linux/sh/clone.S
index b13a64b..d369a82 100644
--- a/sysdeps/unix/sysv/linux/sh/clone.S
+++ b/sysdeps/unix/sysv/linux/sh/clone.S
@@ -73,6 +73,7 @@ ENTRY(__clone)
 	 mov.l	@(4,r15), r4
 
 	/* we are done, passing the return value through r0  */
+	mov     r0, r4
 	mov	#+SYS_ify(exit), r3
 	trapa	#0x15
 	.align	2

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                          |   13 +++++++++++++
 sysdeps/ia64/memchr.S              |    4 ++++
 sysdeps/unix/sysv/linux/sh/clone.S |    1 +
 3 files changed, 18 insertions(+), 0 deletions(-)


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