arm32-linux: for the magic-call CALL_FN_* macros, add r12 to the asm

trash list.  Not doing so was causing r12 to get corrupted by the
called function, which lead to some very strange failures in Helgrind
on arm32.  Fixes #344033.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14929

diff --git a/include/valgrind.h b/include/valgrind.h
index aa0620feb8cd5883f12d74e2098cc9834e80ad9c..7689a9f2a04a64aaa44868be710cb8f829ee1426 100644 (file)
--- a/include/valgrind.h
+++ b/include/valgrind.h
@@ -3734,7 +3734,7 @@ typedef
 #if defined(PLAT_arm_linux)
 
 /* These regs are trashed by the hidden call. */
-#define __CALLER_SAVED_REGS "r0", "r1", "r2", "r3","r4","r14"
+#define __CALLER_SAVED_REGS "r0", "r1", "r2", "r3","r4", "r12", "r14"
 
 /* Macros to save and align the stack before making a function
    call and restore it afterwards as gcc may not keep the stack