From: Alexander Popov <alex.popov@linux.com>
To: Kees Cook <keescook@chromium.org>,
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 5/5] gcc-plugins/stackleak: Don't instrument vgettimeofday.c in arm64 VDSO
Date: Thu, 4 Jun 2020 16:49:57 +0300 [thread overview]
Message-ID: <20200604134957.505389-6-alex.popov@linux.com> (raw)
In-Reply-To: <20200604134957.505389-1-alex.popov@linux.com>
Don't try instrumenting functions in arch/arm64/kernel/vdso/vgettimeofday.c.
Otherwise that can cause issues if the cleanup pass of stackleak gcc plugin
is disabled.
Signed-off-by: Alexander Popov <alex.popov@linux.com>
---
arch/arm64/kernel/vdso/Makefile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile
index 3862cad2410c..9b84cafbd2da 100644
--- a/arch/arm64/kernel/vdso/Makefile
+++ b/arch/arm64/kernel/vdso/Makefile
@@ -32,7 +32,8 @@ UBSAN_SANITIZE := n
OBJECT_FILES_NON_STANDARD := y
KCOV_INSTRUMENT := n
-CFLAGS_vgettimeofday.o = -O2 -mcmodel=tiny -fasynchronous-unwind-tables
+CFLAGS_vgettimeofday.o = -O2 -mcmodel=tiny -fasynchronous-unwind-tables \
+ $(DISABLE_STACKLEAK_PLUGIN)
ifneq ($(c-gettimeofday-y),)
CFLAGS_vgettimeofday.o += -include $(c-gettimeofday-y)
--
2.25.2
next prev parent reply other threads:[~2020-06-04 13:51 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-04 13:49 [PATCH 0/5] Improvements of the stackleak gcc plugin Alexander Popov
2020-06-04 13:49 ` [PATCH 1/5] gcc-plugins/stackleak: Exclude alloca() from the instrumentation logic Alexander Popov
2020-06-04 14:01 ` Jann Horn
2020-06-04 15:23 ` Alexander Popov
2020-06-09 18:39 ` Kees Cook
2020-06-10 15:24 ` Alexander Popov
2020-06-04 13:49 ` [PATCH 2/5] gcc-plugins/stackleak: Use asm instrumentation to avoid useless register saving Alexander Popov
2020-06-04 15:05 ` Miguel Ojeda
2020-06-09 18:46 ` Kees Cook
2020-06-10 15:47 ` Alexander Popov
2020-06-10 20:03 ` Kees Cook
2020-06-11 23:45 ` Alexander Popov
2020-06-04 13:49 ` [PATCH 3/5] gcc-plugins/stackleak: Add 'verbose' plugin parameter Alexander Popov
2020-06-09 18:47 ` Kees Cook
2020-06-10 15:52 ` Alexander Popov
2020-06-10 20:04 ` Kees Cook
2020-06-04 13:49 ` [PATCH 4/5] gcc-plugins/stackleak: Don't instrument itself Alexander Popov
2020-06-09 18:48 ` Kees Cook
2020-06-04 13:49 ` Alexander Popov [this message]
2020-06-04 13:58 ` [PATCH 5/5] gcc-plugins/stackleak: Don't instrument vgettimeofday.c in arm64 VDSO Will Deacon
2020-06-04 14:14 ` Jann Horn
2020-06-04 14:20 ` Alexander Popov
2020-06-04 14:25 ` Jann Horn
2020-06-04 14:44 ` Alexander Popov
2020-06-09 19:09 ` Kees Cook
2020-06-10 7:30 ` Will Deacon
2020-06-10 15:18 ` Alexander Popov
2020-06-23 10:16 ` Alexander Popov
2020-06-04 21:39 ` [PATCH 0/5] Improvements of the stackleak gcc plugin Kees Cook
2020-06-09 19:15 ` Kees Cook
2020-06-10 15:14 ` Alexander Popov
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