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authorH.J. Lu <hjl.tools@gmail.com>2015-03-06 04:55:56 -0800
committerH.J. Lu <hjl.tools@gmail.com>2015-03-06 17:05:42 -0800
commite0ed2fb40a0e29c43cf60addc74741dab15f2e05 (patch)
tree400c1a1de7caeeb732a83957afab9d24b4ec8b85 /elf/ifuncmod1.c
parent0b3467b344c9c30f590e5d67e9a694ea1f33b7ea (diff)
Replace __attribute__((visibility("protected")))
With copy relocation, address of protected data defined in the shared library may be external. Compiler shouldn't asssume protected data will be local. But due to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65248 __attribute__((visibility("protected"))) doesn't work correctly, we need to use asm (".protected xxx") instead. * elf/ifuncdep2.c (global): Replace __attribute__((visibility("protected"))) with asm (".protected global"). * elf/ifuncmod1.c (global): Likewise. * elf/ifuncmod5.c (global): Likewise.
Diffstat (limited to 'elf/ifuncmod1.c')
-rw-r--r--elf/ifuncmod1.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/elf/ifuncmod1.c b/elf/ifuncmod1.c
index 2b8195ce55..0b6138056d 100644
--- a/elf/ifuncmod1.c
+++ b/elf/ifuncmod1.c
@@ -6,7 +6,13 @@
*/
#include "ifunc-sel.h"
-int global __attribute__ ((visibility ("protected"))) = -1;
+int global = -1;
+/* Can't use __attribute__((visibility("protected"))) until the GCC bug:
+
+ https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65248
+
+ is fixed. */
+asm (".protected global");
static int
one (void)