From: Thomas Garnier <thgarnie@google.com>
To: kernel-hardening@lists.openwall.com
Cc: Thomas Garnier <thgarnie@google.com>,
Skip Kees Cook <keescook@chromium.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, Josh Poimboeuf <jpoimboe@redhat.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH v4 04/27] x86: Add macro to get symbol address for PIE support
Date: Tue, 29 May 2018 15:15:05 -0700 [thread overview]
Message-ID: <20180529221625.33541-5-thgarnie@google.com> (raw)
In-Reply-To: <20180529221625.33541-1-thgarnie@google.com>
Add a new _ASM_MOVABS macro to fetch a symbol address. It will be used
to replace "_ASM_MOV $<symbol>, %dst" code construct that are not compatible
with PIE.
Signed-off-by: Thomas Garnier <thgarnie@google.com>
---
arch/x86/include/asm/asm.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/include/asm/asm.h b/arch/x86/include/asm/asm.h
index 219faaec51df..4492a35fad69 100644
--- a/arch/x86/include/asm/asm.h
+++ b/arch/x86/include/asm/asm.h
@@ -30,6 +30,7 @@
#define _ASM_ALIGN __ASM_SEL(.balign 4, .balign 8)
#define _ASM_MOV __ASM_SIZE(mov)
+#define _ASM_MOVABS __ASM_SEL(movl, movabsq)
#define _ASM_INC __ASM_SIZE(inc)
#define _ASM_DEC __ASM_SIZE(dec)
#define _ASM_ADD __ASM_SIZE(add)
--
2.17.0.921.gf22659ad46-goog
next prev parent reply other threads:[~2018-05-29 22:27 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20180529221625.33541-1-thgarnie@google.com>
2018-05-29 22:15 ` [PATCH v4 01/27] x86/crypto: Adapt assembly for PIE support Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 02/27] x86: Use symbol name on bug table " Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 03/27] x86: Use symbol name in jump " Thomas Garnier
2018-05-29 22:15 ` Thomas Garnier [this message]
2018-05-29 22:15 ` [PATCH v4 05/27] x86: relocate_kernel - Adapt assembly " Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 06/27] x86/entry/64: " Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 07/27] x86: pm-trace - " Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 08/27] x86/CPU: " Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 09/27] x86/acpi: " Thomas Garnier
2018-05-30 8:19 ` Rafael J. Wysocki
2018-05-29 22:15 ` [PATCH v4 10/27] x86/boot/64: " Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 11/27] x86/power/64: " Thomas Garnier
2018-05-30 8:20 ` Rafael J. Wysocki
2018-05-29 22:15 ` [PATCH v4 12/27] x86/paravirt: " Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 13/27] x86/boot/64: Build head64.c as mcmodel large when PIE is enabled Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 14/27] x86/percpu: Adapt percpu for PIE support Thomas Garnier
2018-05-29 22:46 ` Christopher Lameter
2018-05-29 23:08 ` Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 15/27] compiler: Option to default to hidden symbols Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 16/27] compiler: Option to add PROVIDE_HIDDEN replacement for weak symbols Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 17/27] x86/relocs: Handle PIE relocations Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 18/27] xen: Adapt assembly for PIE support Thomas Garnier
2018-06-01 15:44 ` Boris Ostrovsky
2018-06-01 15:53 ` Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 19/27] kvm: " Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 20/27] x86: Support global stack cookie Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 21/27] x86/ftrace: Adapt function tracing for PIE support Thomas Garnier
2018-06-04 20:16 ` Steven Rostedt
2018-06-04 21:06 ` Thomas Garnier
2018-06-04 21:44 ` Steven Rostedt
2018-06-05 16:56 ` Thomas Garnier
2018-06-05 21:19 ` Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 22/27] x86/modules: Add option to start module section after kernel Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 23/27] x86/modules: Adapt module loading for PIE support Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 24/27] x86/mm: Make the x86 GOT read-only Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 25/27] x86/pie: Add option to build the kernel as PIE Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 26/27] x86/relocs: Add option to generate 64-bit relocations Thomas Garnier
2018-05-29 22:15 ` [PATCH v4 27/27] x86/kaslr: Add option to extend KASLR range from 1GB to 3GB Thomas Garnier
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