From: Alexander Popov <alex.popov@linux.com>
To: Kees Cook <keescook@chromium.org>, Jann Horn <jannh@google.com>,
Emese Revfy <re.emese@gmail.com>,
Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>,
Masahiro Yamada <masahiroy@kernel.org>,
Michal Marek <michal.lkml@markovi.net>,
Andrew Morton <akpm@linux-foundation.org>,
Masahiro Yamada <yamada.masahiro@socionext.com>,
Thiago Jung Bauermann <bauerman@linux.ibm.com>,
Luis Chamberlain <mcgrof@kernel.org>,
Jessica Yu <jeyu@kernel.org>,
Sven Schnelle <svens@stackframe.org>,
Iurii Zaikin <yzaikin@google.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Collingbourne <pcc@google.com>,
Naohiro Aota <naohiro.aota@wdc.com>,
Alexander Monakov <amonakov@ispras.ru>,
Mathias Krause <minipli@googlemail.com>,
PaX Team <pageexec@freemail.hu>,
Brad Spengler <spender@grsecurity.net>,
Laura Abbott <labbott@redhat.com>,
Florian Weimer <fweimer@redhat.com>,
Alexander Popov <alex.popov@linux.com>,
kernel-hardening@lists.openwall.com,
linux-kbuild@vger.kernel.org, x86@kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, gcc@gcc.gnu.org
Cc: notify@kernel.org
Subject: [PATCH v2 2/5] ARM: vdso: Don't use gcc plugins for building vgettimeofday.c
Date: Wed, 24 Jun 2020 15:33:27 +0300 [thread overview]
Message-ID: <20200624123330.83226-3-alex.popov@linux.com> (raw)
In-Reply-To: <20200624123330.83226-1-alex.popov@linux.com>
Don't use gcc plugins for building arch/arm/vdso/vgettimeofday.c to
avoid unneeded instrumentation.
Signed-off-by: Alexander Popov <alex.popov@linux.com>
---
arch/arm/vdso/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/vdso/Makefile b/arch/arm/vdso/Makefile
index d3c9f03e7e79..a54f70731d9f 100644
--- a/arch/arm/vdso/Makefile
+++ b/arch/arm/vdso/Makefile
@@ -29,7 +29,7 @@ CPPFLAGS_vdso.lds += -P -C -U$(ARCH)
CFLAGS_REMOVE_vdso.o = -pg
# Force -O2 to avoid libgcc dependencies
-CFLAGS_REMOVE_vgettimeofday.o = -pg -Os
+CFLAGS_REMOVE_vgettimeofday.o = -pg -Os $(GCC_PLUGINS_CFLAGS)
ifeq ($(c-gettimeofday-y),)
CFLAGS_vgettimeofday.o = -O2
else
--
2.25.4
WARNING: multiple messages have this Message-ID (diff)
From: Alexander Popov <alex.popov@linux.com>
To: Kees Cook <keescook@chromium.org>, Jann Horn <jannh@google.com>,
Emese Revfy <re.emese@gmail.com>,
Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>,
Masahiro Yamada <masahiroy@kernel.org>,
Michal Marek <michal.lkml@markovi.net>,
Andrew Morton <akpm@linux-foundation.org>,
Masahiro Yamada <yamada.masahiro@socionext.com>,
Thiago Jung Bauermann <bauerman@linux.ibm.com>,
Luis Chamberlain <mcgrof@kernel.org>,
Jessica Yu <jeyu@kernel.org>,
Sven Schnelle <svens@stackframe.org>,
Iurii Zaikin <yzaikin@google.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Collingbourne <pcc@google.com>,
Naohiro Aota <naohiro.aota@wdc.com>,
Alexander Monakov <amonakov@ispras.ru>,
Mathias Krause <minipli@googlemail.com>,
PaX Team <pageexec@freemail.hu>,
Brad Spengler <spender@grsecurity.net>,
Laura Abbott <labbott@redhat.com>,
Florian Weimer <fweimer@redhat.com>,
Alexander Popov <alex.popov@linux.com>,
kernel-hardening@lists.openwall.com,
linux-kbuild@vger.kernel.org, x86@kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, gcc@gcc.gnu.org
Cc: notify@kernel.org
Subject: [PATCH v2 2/5] ARM: vdso: Don't use gcc plugins for building vgettimeofday.c
Date: Wed, 24 Jun 2020 15:33:27 +0300 [thread overview]
Message-ID: <20200624123330.83226-3-alex.popov@linux.com> (raw)
In-Reply-To: <20200624123330.83226-1-alex.popov@linux.com>
Don't use gcc plugins for building arch/arm/vdso/vgettimeofday.c to
avoid unneeded instrumentation.
Signed-off-by: Alexander Popov <alex.popov@linux.com>
---
arch/arm/vdso/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/vdso/Makefile b/arch/arm/vdso/Makefile
index d3c9f03e7e79..a54f70731d9f 100644
--- a/arch/arm/vdso/Makefile
+++ b/arch/arm/vdso/Makefile
@@ -29,7 +29,7 @@ CPPFLAGS_vdso.lds += -P -C -U$(ARCH)
CFLAGS_REMOVE_vdso.o = -pg
# Force -O2 to avoid libgcc dependencies
-CFLAGS_REMOVE_vgettimeofday.o = -pg -Os
+CFLAGS_REMOVE_vgettimeofday.o = -pg -Os $(GCC_PLUGINS_CFLAGS)
ifeq ($(c-gettimeofday-y),)
CFLAGS_vgettimeofday.o = -O2
else
--
2.25.4
_______________________________________________
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:[~2020-06-24 12:34 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-24 12:33 [PATCH v2 0/5] Improvements of the stackleak gcc plugin Alexander Popov
2020-06-24 12:33 ` Alexander Popov
2020-06-24 12:33 ` [PATCH v2 1/5] gcc-plugins/stackleak: Don't instrument itself Alexander Popov
2020-06-24 12:33 ` Alexander Popov
2020-06-24 14:52 ` Kees Cook
2020-06-24 14:52 ` Kees Cook
2020-06-24 12:33 ` Alexander Popov [this message]
2020-06-24 12:33 ` [PATCH v2 2/5] ARM: vdso: Don't use gcc plugins for building vgettimeofday.c Alexander Popov
2020-06-24 12:52 ` Luis Chamberlain
2020-06-24 12:52 ` Luis Chamberlain
2020-06-24 12:56 ` Alexander Popov
2020-06-24 12:56 ` Alexander Popov
2020-06-24 14:52 ` Kees Cook
2020-06-24 14:52 ` Kees Cook
2020-06-24 12:33 ` [PATCH v2 3/5] arm64: " Alexander Popov
2020-06-24 12:33 ` Alexander Popov
2020-06-24 12:41 ` Will Deacon
2020-06-24 12:41 ` Will Deacon
2020-06-24 14:46 ` Kees Cook
2020-06-24 14:46 ` Kees Cook
2020-06-24 12:33 ` [PATCH v2 4/5] gcc-plugins/stackleak: Use asm instrumentation to avoid useless register saving Alexander Popov
2020-06-24 12:33 ` Alexander Popov
2020-06-24 12:33 ` [PATCH v2 5/5] gcc-plugins/stackleak: Add 'verbose' plugin parameter Alexander Popov
2020-06-24 12:33 ` Alexander Popov
2020-06-24 12:53 ` Luis Chamberlain
2020-06-24 12:53 ` Luis Chamberlain
2020-06-24 13:09 ` Alexander Popov
2020-06-24 13:09 ` Alexander Popov
2020-06-24 14:41 ` Kees Cook
2020-06-24 14:41 ` Kees Cook
2020-06-24 14:53 ` Kees Cook
2020-06-24 14:53 ` Kees Cook
2020-06-24 13:54 ` [PATCH v2 0/5] Improvements of the stackleak gcc plugin Will Deacon
2020-06-24 13:54 ` Will Deacon
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