From: duwe@lst.de (Torsten Duwe)
To: Mark Rutland <mark.rutland@arm.com>,
Will Deacon <will.deacon@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Julien Thierry <julien.thierry@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Ingo Molnar <mingo@redhat.com>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Arnd Bergmann <arnd@arndb.de>,
AKASHI Takahiro <takahiro.akashi@linaro.org>,
Amit Daniel Kachhap <amit.kachhap@arm.com>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, live-patching@vger.kernel.org
Subject: [PATCH v7 1/3] arm64: replace -pg with CC_FLAGS_FTRACE in Makefiles
Date: Fri, 18 Jan 2019 17:39:04 +0100 (CET) [thread overview]
Message-ID: <20190118163904.CD7BA68CEB@newverein.lst.de> (raw)
In-Reply-To: <20190118163736.6A99268CEB@newverein.lst.de>
Ftrace instrumentation might also be introduced by
-fpatchable-function-entry, not only -pg. Ensure the Makefiles are
flexible to filter out the respective flags in "notrace" directories.
Signed-off-by: Torsten Duwe <duwe@suse.de>
---
arch/arm64/kernel/Makefile | 6 +++---
drivers/firmware/efi/libstub/Makefile | 3 ++-
2 files changed, 5 insertions(+), 4 deletions(-)
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -7,9 +7,9 @@ CPPFLAGS_vmlinux.lds := -DTEXT_OFFSET=$(
AFLAGS_head.o := -DTEXT_OFFSET=$(TEXT_OFFSET)
CFLAGS_armv8_deprecated.o := -I$(src)
-CFLAGS_REMOVE_ftrace.o = -pg
-CFLAGS_REMOVE_insn.o = -pg
-CFLAGS_REMOVE_return_address.o = -pg
+CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
+CFLAGS_REMOVE_insn.o = $(CC_FLAGS_FTRACE)
+CFLAGS_REMOVE_return_address.o = $(CC_FLAGS_FTRACE)
# Object file lists.
obj-y := debug-monitors.o entry.o irq.o fpsimd.o \
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -16,7 +16,8 @@ cflags-$(CONFIG_X86) += -m$(BITS) -D__K
# arm64 uses the full KBUILD_CFLAGS so it's necessary to explicitly
# disable the stackleak plugin
-cflags-$(CONFIG_ARM64) := $(subst -pg,,$(KBUILD_CFLAGS)) -fpie \
+cflags-$(CONFIG_ARM64) := $(filter-out $(CC_FLAGS_FTRACE)\
+ ,$(KBUILD_CFLAGS)) -fpie \
$(DISABLE_STACKLEAK_PLUGIN)
cflags-$(CONFIG_ARM) := $(subst -pg,,$(KBUILD_CFLAGS)) \
-fno-builtin -fpic \
WARNING: multiple messages have this Message-ID (diff)
From: duwe@lst.de (Torsten Duwe)
To: Mark Rutland <mark.rutland@arm.com>,
Will Deacon <will.deacon@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Julien Thierry <julien.thierry@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Ingo Molnar <mingo@redhat.com>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Arnd Bergmann <arnd@arndb.de>,
AKASHI Takahiro <takahiro.akashi@linaro.org>,
Amit Daniel Kachhap <amit.kachhap@arm.com>
Cc: live-patching@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v7 1/3] arm64: replace -pg with CC_FLAGS_FTRACE in Makefiles
Date: Fri, 18 Jan 2019 17:39:04 +0100 (CET) [thread overview]
Message-ID: <20190118163904.CD7BA68CEB@newverein.lst.de> (raw)
In-Reply-To: <20190118163736.6A99268CEB@newverein.lst.de>
Ftrace instrumentation might also be introduced by
-fpatchable-function-entry, not only -pg. Ensure the Makefiles are
flexible to filter out the respective flags in "notrace" directories.
Signed-off-by: Torsten Duwe <duwe@suse.de>
---
arch/arm64/kernel/Makefile | 6 +++---
drivers/firmware/efi/libstub/Makefile | 3 ++-
2 files changed, 5 insertions(+), 4 deletions(-)
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -7,9 +7,9 @@ CPPFLAGS_vmlinux.lds := -DTEXT_OFFSET=$(
AFLAGS_head.o := -DTEXT_OFFSET=$(TEXT_OFFSET)
CFLAGS_armv8_deprecated.o := -I$(src)
-CFLAGS_REMOVE_ftrace.o = -pg
-CFLAGS_REMOVE_insn.o = -pg
-CFLAGS_REMOVE_return_address.o = -pg
+CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
+CFLAGS_REMOVE_insn.o = $(CC_FLAGS_FTRACE)
+CFLAGS_REMOVE_return_address.o = $(CC_FLAGS_FTRACE)
# Object file lists.
obj-y := debug-monitors.o entry.o irq.o fpsimd.o \
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -16,7 +16,8 @@ cflags-$(CONFIG_X86) += -m$(BITS) -D__K
# arm64 uses the full KBUILD_CFLAGS so it's necessary to explicitly
# disable the stackleak plugin
-cflags-$(CONFIG_ARM64) := $(subst -pg,,$(KBUILD_CFLAGS)) -fpie \
+cflags-$(CONFIG_ARM64) := $(filter-out $(CC_FLAGS_FTRACE)\
+ ,$(KBUILD_CFLAGS)) -fpie \
$(DISABLE_STACKLEAK_PLUGIN)
cflags-$(CONFIG_ARM) := $(subst -pg,,$(KBUILD_CFLAGS)) \
-fno-builtin -fpic \
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-01-18 16:39 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-18 16:37 [PATCH v7 0/3] arm64: ftrace with regs Torsten Duwe
2019-01-18 16:37 ` Torsten Duwe
2019-01-18 16:39 ` Torsten Duwe [this message]
2019-01-18 16:39 ` [PATCH v7 1/3] arm64: replace -pg with CC_FLAGS_FTRACE in Makefiles Torsten Duwe
2019-01-18 17:24 ` Mark Rutland
2019-01-18 17:24 ` Mark Rutland
2019-01-18 16:39 ` [PATCH v7 2/3] arm64: implement ftrace with regs Torsten Duwe
2019-01-18 16:39 ` Torsten Duwe
2019-01-22 1:39 ` Singh, Balbir
2019-01-22 1:39 ` Singh, Balbir
2019-01-22 13:09 ` Torsten Duwe
2019-01-22 13:09 ` Torsten Duwe
2019-01-23 20:38 ` Singh, Balbir
2019-01-23 20:38 ` Singh, Balbir
2019-01-22 10:18 ` Julien Thierry
2019-01-22 10:18 ` Julien Thierry
2019-01-22 13:28 ` Torsten Duwe
2019-01-22 13:28 ` Torsten Duwe
2019-01-22 13:49 ` Julien Thierry
2019-01-22 13:49 ` Julien Thierry
2019-01-22 13:55 ` Ard Biesheuvel
2019-01-22 13:55 ` Ard Biesheuvel
2019-02-04 12:03 ` Torsten Duwe
2019-02-04 12:03 ` Torsten Duwe
2019-02-04 13:43 ` Ard Biesheuvel
2019-02-04 13:43 ` Ard Biesheuvel
2019-02-06 8:59 ` Julien Thierry
2019-02-06 8:59 ` Julien Thierry
2019-02-06 9:30 ` Julien Thierry
2019-02-06 9:30 ` Julien Thierry
2019-02-06 14:09 ` Steven Rostedt
2019-02-06 14:09 ` Steven Rostedt
2019-02-06 15:05 ` Torsten Duwe
2019-02-06 15:05 ` Torsten Duwe
2019-02-07 10:33 ` Julien Thierry
2019-02-07 10:33 ` Julien Thierry
2019-02-07 12:51 ` Torsten Duwe
2019-02-07 12:51 ` Torsten Duwe
2019-02-07 13:47 ` Julien Thierry
2019-02-07 13:47 ` Julien Thierry
2019-02-07 14:51 ` Steven Rostedt
2019-02-07 14:51 ` Steven Rostedt
2019-02-07 14:58 ` Julien Thierry
2019-02-07 14:58 ` Julien Thierry
2019-02-07 15:00 ` Torsten Duwe
2019-02-07 15:00 ` Torsten Duwe
2019-04-03 2:48 ` Mark Rutland
2019-04-03 2:48 ` Mark Rutland
2019-04-03 12:30 ` Steven Rostedt
2019-04-03 12:30 ` Steven Rostedt
2019-04-03 13:05 ` Torsten Duwe
2019-04-03 13:05 ` Torsten Duwe
2019-01-18 16:39 ` [PATCH v7 3/3] arm64: use -fpatchable-function-entry if available Torsten Duwe
2019-01-18 16:39 ` Torsten Duwe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190118163904.CD7BA68CEB@newverein.lst.de \
--to=duwe@lst.de \
--cc=amit.kachhap@arm.com \
--cc=ard.biesheuvel@linaro.org \
--cc=arnd@arndb.de \
--cc=catalin.marinas@arm.com \
--cc=jpoimboe@redhat.com \
--cc=julien.thierry@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=live-patching@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=mingo@redhat.com \
--cc=rostedt@goodmis.org \
--cc=takahiro.akashi@linaro.org \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.