File function-profiling-aarch64.patch of Package cross-armv7hl-gcc48-icecream-backend
2013-09-30 Venkataramanan Kumar <venkataramanan.kumar@linaro.org>
* config/aarch64/aarch64.h (MCOUNT_NAME): Define.
(NO_PROFILE_COUNTERS): Likewise.
(PROFILE_HOOK): Likewise.
(FUNCTION_PROFILER): Likewise.
* config/aarch64/aarch64.c (aarch64_function_profiler): Remove.
Index: gcc-4.8.2-r206703/gcc/config/aarch64/aarch64.c
===================================================================
--- gcc-4.8.2-r206703.orig/gcc/config/aarch64/aarch64.c
+++ gcc-4.8.2-r206703/gcc/config/aarch64/aarch64.c
@@ -3647,13 +3647,6 @@ aarch64_print_operand_address (FILE *f,
output_addr_const (f, x);
}
-void
-aarch64_function_profiler (FILE *f ATTRIBUTE_UNUSED,
- int labelno ATTRIBUTE_UNUSED)
-{
- sorry ("function profiling");
-}
-
bool
aarch64_label_mentioned_p (rtx x)
{
Index: gcc-4.8.2-r206703/gcc/config/aarch64/aarch64.h
===================================================================
--- gcc-4.8.2-r206703.orig/gcc/config/aarch64/aarch64.h
+++ gcc-4.8.2-r206703/gcc/config/aarch64/aarch64.h
@@ -758,8 +758,22 @@ do { \
#define PRINT_OPERAND_ADDRESS(STREAM, X) \
aarch64_print_operand_address (STREAM, X)
-#define FUNCTION_PROFILER(STREAM, LABELNO) \
- aarch64_function_profiler (STREAM, LABELNO)
+#define MCOUNT_NAME "_mcount"
+
+#define NO_PROFILE_COUNTERS 1
+
+/* Emit rtl for profiling. Output assembler code to FILE
+ to call "_mcount" for profiling a function entry. */
+#define PROFILE_HOOK(LABEL) \
+{ \
+ rtx fun,lr; \
+ lr = get_hard_reg_initial_val (Pmode, LR_REGNUM); \
+ fun = gen_rtx_SYMBOL_REF (Pmode, MCOUNT_NAME); \
+ emit_library_call (fun, LCT_NORMAL, VOIDmode, 1, lr, Pmode); \
+}
+
+/* All the work done in PROFILE_HOOK, but still required. */
+#define FUNCTION_PROFILER(STREAM, LABELNO) do { } while (0)
/* For some reason, the Linux headers think they know how to define
these macros. They don't!!! */
Index: gcc-4.8.2-r206703/gcc/testsuite/lib/target-supports.exp
===================================================================
--- gcc-4.8.2-r206703.orig/gcc/testsuite/lib/target-supports.exp
+++ gcc-4.8.2-r206703/gcc/testsuite/lib/target-supports.exp
@@ -487,13 +487,6 @@ proc check_profiling_available { test_wh
return 0
}
- # We don't yet support profiling for AArch64.
- if { [istarget aarch64*-*-*]
- && ([lindex $test_what 1] == "-p"
- || [lindex $test_what 1] == "-pg") } {
- return 0
- }
-
# cygwin does not support -p.
if { [istarget *-*-cygwin*] && $test_what == "-p" } {
return 0