GNU C Library master sources branch master updated. glibc-2.26-111-g5047057

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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=5047057ffa1c737cc432eec3113ae6fcd327adf4

commit 5047057ffa1c737cc432eec3113ae6fcd327adf4
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Wed Aug 16 17:01:27 2017 +0000

    Allow abort PLT references in libc.so for SH.
    
    Given my patch
    <https://gcc.gnu.org/ml/gcc-patches/2017-08/msg00965.html> for the
    ICEs building a glibc string function test for SH, the testsuite can
    build completely for SH with GCC 7 and mainline.  However, there is a
    test failure that does not appear for GCC 6: check-localplt fails
    because of an abort PLT reference in libc.so.
    
    Given the lack of a trap insn pattern for SH, it seems unavoidable
    that the compiler might sometimes generate abort calls, and such abort
    calls (generated from __builtin_trap when there is no trap insn
    pattern) will be unaffected by the normal mapping to __GI_abort for
    calls within glibc.  Thus, this patch allows (but does not require) an
    abort PLT reference in libc.so for SH.
    
    Tested for sh4-linux-gnu with build-many-glibcs.py (GCC 7, with my
    patch applied).
    
    	* sysdeps/unix/sysv/linux/sh/localplt.data: Allow abort in
    	libc.so.

diff --git a/ChangeLog b/ChangeLog
index 2b7ef31..af07c42 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2017-08-16  Joseph Myers  <joseph@codesourcery.com>
+
+	* sysdeps/unix/sysv/linux/sh/localplt.data: Allow abort in
+	libc.so.
+
 2017-08-16  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* NEWS: Mention x86-64 FMA optimization.
diff --git a/sysdeps/unix/sysv/linux/sh/localplt.data b/sysdeps/unix/sysv/linux/sh/localplt.data
index 2753547..babb19d 100644
--- a/sysdeps/unix/sysv/linux/sh/localplt.data
+++ b/sysdeps/unix/sysv/linux/sh/localplt.data
@@ -10,6 +10,8 @@ libc.so: _Unwind_Find_FDE
 libc.so: _exit
 libc.so: __errno_location
 libm.so: matherr
+# Generated by the compiler because there is no trap insn pattern.
+libc.so: abort ?
 # The main malloc is interposed into the dynamic linker, for
 # allocations after the initial link (when dlopen is used).
 ld.so: malloc

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

Summary of changes:
 ChangeLog                                |    5 +++++
 sysdeps/unix/sysv/linux/sh/localplt.data |    2 ++
 2 files changed, 7 insertions(+), 0 deletions(-)


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