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From: Vincenzo Frascino <vincenzo.frascino@arm.com>
To: linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org,
	linux-kselftest@vger.kernel.org
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>, Arnd Bergmann <arnd@arndb.de>,
	Russell King <linux@armlinux.org.uk>,
	Ralf Baechle <ralf@linux-mips.org>,
	Paul Burton <paul.burton@mips.com>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Mark Salyzyn <salyzyn@android.com>,
	Peter Collingbourne <pcc@google.com>,
	Shuah Khan <shuah@kernel.org>,
	Dmitry Safonov <0x7f454c46@gmail.com>,
	Rasmus Villemoes <linux@rasmusvillemoes.dk>,
	Huw Davies <huw@codeweavers.com>
Subject: [PATCH v6 08/19] arm64: compat: Generate asm offsets for signals
Date: Thu, 30 May 2019 15:15:20 +0100
Message-ID: <20190530141531.43462-9-vincenzo.frascino@arm.com> (raw)
In-Reply-To: <20190530141531.43462-1-vincenzo.frascino@arm.com>

Update asm-offsets for arm64 to generate the correct offsets for
compat signals.

They will be useful for the implementation of the compat sigreturn
trampolines in vDSO context.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
---
 arch/arm64/kernel/asm-offsets.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c
index 9e4b7ccbab2f..c0d8b9f40022 100644
--- a/arch/arm64/kernel/asm-offsets.c
+++ b/arch/arm64/kernel/asm-offsets.c
@@ -30,6 +30,7 @@
 #include <asm/fixmap.h>
 #include <asm/thread_info.h>
 #include <asm/memory.h>
+#include <asm/signal32.h>
 #include <asm/smp_plat.h>
 #include <asm/suspend.h>
 #include <linux/kbuild.h>
@@ -77,6 +78,11 @@ int main(void)
   DEFINE(S_STACKFRAME,		offsetof(struct pt_regs, stackframe));
   DEFINE(S_FRAME_SIZE,		sizeof(struct pt_regs));
   BLANK();
+#ifdef CONFIG_COMPAT
+  DEFINE(COMPAT_SIGFRAME_REGS_OFFSET,		offsetof(struct compat_sigframe, uc.uc_mcontext.arm_r0));
+  DEFINE(COMPAT_RT_SIGFRAME_REGS_OFFSET,	offsetof(struct compat_rt_sigframe, sig.uc.uc_mcontext.arm_r0));
+  BLANK();
+#endif
   DEFINE(MM_CONTEXT_ID,		offsetof(struct mm_struct, context.id.counter));
   BLANK();
   DEFINE(VMA_VM_MM,		offsetof(struct vm_area_struct, vm_mm));
-- 
2.21.0


  parent reply index

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-30 14:15 [PATCH v6 00/19] Unify vDSOs across more architectures Vincenzo Frascino
2019-05-30 14:15 ` [PATCH v6 01/19] kernel: Standardize vdso_datapage Vincenzo Frascino
2019-05-31  8:16   ` Arnd Bergmann
2019-06-04 12:05     ` Vincenzo Frascino
2019-06-10 17:47       ` Huw Davies
2019-06-10  9:27   ` Huw Davies
2019-06-10 10:17     ` Vincenzo Frascino
2019-06-10 10:31       ` Huw Davies
2019-06-10 11:07         ` Vincenzo Frascino
2019-06-10 11:37           ` Huw Davies
2019-05-30 14:15 ` [PATCH v6 02/19] kernel: Define gettimeofday vdso common code Vincenzo Frascino
2019-05-31  8:19   ` Arnd Bergmann
2019-06-04 12:08     ` Vincenzo Frascino
2019-06-10  9:31   ` Huw Davies
2019-06-10 10:18     ` Vincenzo Frascino
2019-05-30 14:15 ` [PATCH v6 03/19] kernel: Unify update_vsyscall implementation Vincenzo Frascino
2019-06-10  9:34   ` Huw Davies
2019-06-10 10:19     ` Vincenzo Frascino
2019-06-14 11:10   ` Thomas Gleixner
2019-06-14 12:15     ` Vincenzo Frascino
2019-06-14 12:19       ` Thomas Gleixner
2019-06-14 12:25         ` Vincenzo Frascino
2019-06-14 13:07           ` Thomas Gleixner
2019-05-30 14:15 ` [PATCH v6 04/19] arm64: Substitute gettimeofday with C implementation Vincenzo Frascino
2019-05-30 14:15 ` [PATCH v6 05/19] arm64: Build vDSO with -ffixed-x18 Vincenzo Frascino
2019-05-30 14:15 ` [PATCH v6 06/19] arm64: compat: Add missing syscall numbers Vincenzo Frascino
2019-05-30 14:15 ` [PATCH v6 07/19] arm64: compat: Expose signal related structures Vincenzo Frascino
2019-05-30 14:15 ` Vincenzo Frascino [this message]
2019-05-30 14:15 ` [PATCH v6 09/19] lib: vdso: Add compat support Vincenzo Frascino
2019-05-30 14:15 ` [PATCH v6 10/19] arm64: compat: Add vDSO Vincenzo Frascino
2019-05-30 14:15 ` [PATCH v6 11/19] arm64: Refactor vDSO code Vincenzo Frascino
2019-05-30 14:15 ` [PATCH v6 12/19] arm64: compat: vDSO setup for compat layer Vincenzo Frascino
2019-05-30 14:15 ` [PATCH v6 13/19] arm64: elf: vDSO code page discovery Vincenzo Frascino
2019-05-30 14:15 ` [PATCH v6 14/19] arm64: compat: Get sigreturn trampolines from vDSO Vincenzo Frascino
2019-05-30 14:15 ` [PATCH v6 15/19] arm64: Add vDSO compat support Vincenzo Frascino
2019-06-01  9:38   ` Catalin Marinas
2019-06-04 12:10     ` Vincenzo Frascino
2019-05-30 14:15 ` [PATCH v6 16/19] arm: Add support for generic vDSO Vincenzo Frascino
2019-05-31  8:32   ` Arnd Bergmann
2019-05-30 14:15 ` [PATCH v6 17/19] mips: " Vincenzo Frascino
2019-05-31  8:34   ` Arnd Bergmann
2019-06-03 14:54     ` Mark Salyzyn
2019-06-03 17:07       ` Arnd Bergmann
2019-05-30 14:15 ` [PATCH v6 18/19] x86: " Vincenzo Frascino
2019-05-30 15:41   ` Michael Kelley
2019-06-04 12:13     ` Vincenzo Frascino
2019-06-14 11:15     ` Thomas Gleixner
2019-06-14 21:17       ` Sasha Levin
2019-06-22 14:46         ` Thomas Gleixner
2019-06-23 19:09           ` Sasha Levin
2019-06-23 21:58             ` Stephen Rothwell
2019-06-24  0:24               ` Sasha Levin
2019-06-24  1:20                 ` Stephen Rothwell
2019-06-23 22:12             ` Thomas Gleixner
2019-06-24  0:04               ` Michael Kelley
2019-06-24  0:25                 ` Thomas Gleixner
2019-06-28 18:40                   ` Michael Kelley
2019-05-30 14:15 ` [PATCH v6 19/19] kselftest: Extend vDSO selftest Vincenzo Frascino
2019-05-31  8:53   ` Arnd Bergmann
2019-05-31  8:46 ` [PATCH v6 00/19] Unify vDSOs across more architectures Arnd Bergmann
2019-06-04 12:04   ` Vincenzo Frascino
2019-06-04 12:12     ` Arnd Bergmann
2019-06-05 14:32       ` Vincenzo Frascino
2019-06-14 12:16     ` Thomas Gleixner
2019-06-14 12:19       ` Vincenzo Frascino
2019-06-20  6:17 ` Shijith Thotton
2019-06-20  8:55   ` Vincenzo Frascino
2019-06-20 16:27 ` Andre Przywara
2019-06-21  9:11   ` Vincenzo Frascino

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