From: Anton Blanchard <anton@samba.org>
To: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
rostedt@goodmis.org
Cc: linuxppc-dev@lists.ozlabs.org
Subject: [PATCH 1/3] powerpc: Remove -mno-sched-epilog workaround
Date: Wed, 17 Sep 2014 17:07:02 +1000 [thread overview]
Message-ID: <1410937624-25140-1-git-send-email-anton@samba.org> (raw)
We added -mno-sched-epilog in commit 7563dc645853 (powerpc:
Work around gcc's -fno-omit-frame-pointer bug).
We shouldn't apply -fno-omit-frame-pointer on powerpc any more (it's
protected by CONFIG_FRAME_POINTER and CONFIG_SCHED_OMIT_FRAME_POINTER).
It's also an undocumented gcc option, so lets remove it.
Signed-off-by: Anton Blanchard <anton@samba.org>
---
arch/powerpc/Makefile | 5 -----
arch/powerpc/kernel/Makefile | 12 ++++++------
arch/powerpc/platforms/powermac/Makefile | 2 +-
3 files changed, 7 insertions(+), 12 deletions(-)
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 132d9c6..c6f64e2 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -198,11 +198,6 @@ ifeq ($(CONFIG_6xx),y)
KBUILD_CFLAGS += -mcpu=powerpc
endif
-# Work around a gcc code-gen bug with -fno-omit-frame-pointer.
-ifeq ($(CONFIG_FUNCTION_TRACER),y)
-KBUILD_CFLAGS += -mno-sched-epilog
-endif
-
cpu-as-$(CONFIG_4xx) += -Wa,-m405
cpu-as-$(CONFIG_ALTIVEC) += -Wa,-maltivec
cpu-as-$(CONFIG_E200) += -Wa,-me200
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 502cf69..e14bda6 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -17,14 +17,14 @@ endif
ifdef CONFIG_FUNCTION_TRACER
# Do not trace early boot code
-CFLAGS_REMOVE_cputable.o = -pg -mno-sched-epilog
-CFLAGS_REMOVE_prom_init.o = -pg -mno-sched-epilog
-CFLAGS_REMOVE_btext.o = -pg -mno-sched-epilog
-CFLAGS_REMOVE_prom.o = -pg -mno-sched-epilog
+CFLAGS_REMOVE_cputable.o = -pg
+CFLAGS_REMOVE_prom_init.o = -pg
+CFLAGS_REMOVE_btext.o = -pg
+CFLAGS_REMOVE_prom.o = -pg
# do not trace tracer code
-CFLAGS_REMOVE_ftrace.o = -pg -mno-sched-epilog
+CFLAGS_REMOVE_ftrace.o = -pg
# timers used by tracing
-CFLAGS_REMOVE_time.o = -pg -mno-sched-epilog
+CFLAGS_REMOVE_time.o = -pg
endif
obj-y := cputable.o ptrace.o syscalls.o \
diff --git a/arch/powerpc/platforms/powermac/Makefile b/arch/powerpc/platforms/powermac/Makefile
index 52c6ce1..e238872 100644
--- a/arch/powerpc/platforms/powermac/Makefile
+++ b/arch/powerpc/platforms/powermac/Makefile
@@ -2,7 +2,7 @@ CFLAGS_bootx_init.o += -fPIC
ifdef CONFIG_FUNCTION_TRACER
# Do not trace early boot code
-CFLAGS_REMOVE_bootx_init.o = -pg -mno-sched-epilog
+CFLAGS_REMOVE_bootx_init.o = -pg
endif
obj-y += pic.o setup.o time.o feature.o pci.o \
--
1.9.1
next reply other threads:[~2014-09-17 7:07 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-17 7:07 Anton Blanchard [this message]
2014-09-17 7:07 ` [PATCH 2/3] powerpc/ftrace: Remove mod_return_to_handler Anton Blanchard
2014-09-23 23:20 ` Steven Rostedt
2014-09-17 7:07 ` [PATCH 3/3] powerpc/ftrace: simplify prepare_ftrace_return Anton Blanchard
2014-09-23 23:46 ` Steven Rostedt
2014-09-23 23:54 ` Steven Rostedt
2014-09-24 2:22 ` Anton Blanchard
2014-09-24 2:24 ` Benjamin Herrenschmidt
2014-09-24 2:33 ` Anton Blanchard
2014-09-24 2:44 ` Steven Rostedt
2014-09-27 0:22 ` Segher Boessenkool
2014-10-28 4:55 ` Anton Blanchard
2014-09-23 23:11 ` [PATCH 1/3] powerpc: Remove -mno-sched-epilog workaround Steven Rostedt
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