about summary refs log tree commit diff
path: root/sysdeps
diff options
context:
space:
mode:
authorH.J. Lu <hjl.tools@gmail.com>2016-11-28 09:44:49 -0800
committerH.J. Lu <hjl.tools@gmail.com>2016-11-28 09:45:07 -0800
commitc9070e6305c08365c5f8b604bdca39c699d70cfa (patch)
treeca1d9aec72ad11a8530e4fcef99d6a7deb576cda /sysdeps
parent389d1f1b232b3d6b9d73ee2c50e543ace6675621 (diff)
downloadglibc-c9070e6305c08365c5f8b604bdca39c699d70cfa.tar.gz
glibc-c9070e6305c08365c5f8b604bdca39c699d70cfa.tar.xz
glibc-c9070e6305c08365c5f8b604bdca39c699d70cfa.zip
X86_64: Don't use PLT nor GOT in static archives [BZ #20750]
There is no need to use PLT nor GOT in static archives to branch to a
function, regardless whether static archives is compiled with PIC or
not.  When static archives are used to create dynamic executable,
PLT/GOT may be used.  The resulting executable still works correctly.

	[BZ #20750]
	* sysdeps/x86_64/sysdep.h (JUMPTARGET): Check SHARED instead
	of PIC.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/x86_64/sysdep.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/sysdeps/x86_64/sysdep.h b/sysdeps/x86_64/sysdep.h
index 75ac747be8..4b67fa80c1 100644
--- a/sysdeps/x86_64/sysdep.h
+++ b/sysdeps/x86_64/sysdep.h
@@ -89,13 +89,14 @@ lose:									      \
   END (name)
 
 #undef JUMPTARGET
-#ifdef PIC
+#ifdef SHARED
 # ifdef BIND_NOW
 #  define JUMPTARGET(name)	*name##@GOTPCREL(%rip)
 # else
 #  define JUMPTARGET(name)	name##@PLT
 # endif
 #else
+/* For static archives, branch to target directly.  */
 # define JUMPTARGET(name)	name
 #endif