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GNU C Library master sources branch master updated. glibc-2.26-157-gea99fcd
- From: jsm28 at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 21 Aug 2017 21:43:50 -0000
- Subject: GNU C Library master sources branch master updated. glibc-2.26-157-gea99fcd
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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=ea99fcd03875caf59ceda354ec8ed813bb5a5f79
commit ea99fcd03875caf59ceda354ec8ed813bb5a5f79
Author: Joseph Myers <joseph@codesourcery.com>
Date: Mon Aug 21 21:43:32 2017 +0000
Fix GCC 7 build of k_standard.c.
This patch adds a default case to k_standard.c that calls
__builtin_unreachable, to avoid an uninitialized variable error from
GCC 7 (reported in
<https://sourceware.org/ml/libc-alpha/2017-08/msg01012.html>).
Tested for x86_64 (with GCC 7).
* sysdeps/ieee754/k_standard.c (__kernel_standard): Add default
case calling __builtin_unreachable.
diff --git a/ChangeLog b/ChangeLog
index 3d2afd9..bf3e893 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2017-08-21 Joseph Myers <joseph@codesourcery.com>
+
+ * sysdeps/ieee754/k_standard.c (__kernel_standard): Add default
+ case calling __builtin_unreachable.
+
2017-08-21 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* libio/ioopen.c (_IO_waitpid): Replace waitpid_not_cancel with
diff --git a/sysdeps/ieee754/k_standard.c b/sysdeps/ieee754/k_standard.c
index 0a0201f..8f906bd 100644
--- a/sysdeps/ieee754/k_standard.c
+++ b/sysdeps/ieee754/k_standard.c
@@ -939,6 +939,9 @@ __kernel_standard(double x, double y, int type)
break;
/* #### Last used is 50/150/250 ### */
+
+ default:
+ __builtin_unreachable ();
}
return exc.retval;
}
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 5 +++++
sysdeps/ieee754/k_standard.c | 3 +++
2 files changed, 8 insertions(+), 0 deletions(-)
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