PR target/3724

* arm/linux-elf.h (PROFILE_HOOK): Define.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@67950 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/ChangeLog

+2003-06-14  Richard Earnshaw  <rearnsha@arm.com>
+
+	PR target/3724
+	* arm/linux-elf.h (PROFILE_HOOK): Define.
+
 2003-06-14  Richard Earnshaw  <rearnsha@arm.com>
 	PR target/11183

gcc/config/arm/linux-elf.h

@@ -120,5 +120,10 @@
   fprintf (STREAM, "\tbl\tmcount%s\n", NEED_PLT_RELOC ? "(PLT)" : "");	\
 }
 
+/* The linux profiler clobbers the link register.  Make sure the
+   prologue knows to save it.  */
+#define PROFILE_HOOK(X)						\
+  emit_insn (gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (SImode, LR_REGNUM)))
+
 #undef  CC1_SPEC
 #define CC1_SPEC "%{profile:-p}"