linux-kernel - [tip:timers/vdso] arm64: compat: Generate asm offsets for signals

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sun, 23 Jun 2019 16:50:21 -0700
From:   tip-bot for Vincenzo Frascino <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     mingo@...nel.org, arnd@...db.de, salyzyn@...roid.com,
        vincenzo.frascino@....com, paul.burton@...s.com,
        linux-kernel@...r.kernel.org, tglx@...utronix.de, pcc@...gle.com,
        huw@...eweavers.com, ralf@...ux-mips.org, andre.przywara@....com,
        linux@...linux.org.uk, catalin.marinas@....com,
        sthotton@...vell.com, 0x7f454c46@...il.com, will.deacon@....com,
        hpa@...or.com, daniel.lezcano@...aro.org, linux@...musvillemoes.dk,
        shuah@...nel.org
Subject: [tip:timers/vdso] arm64: compat: Generate asm offsets for signals

Commit-ID:  f14d8025d263f3c8236775df724a7c1f14e0dc94
Gitweb:     https://git.kernel.org/tip/f14d8025d263f3c8236775df724a7c1f14e0dc94
Author:     Vincenzo Frascino <vincenzo.frascino@....com>
AuthorDate: Fri, 21 Jun 2019 10:52:35 +0100
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Sat, 22 Jun 2019 21:21:07 +0200

arm64: compat: Generate asm offsets for signals

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.

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@....com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Tested-by: Shijith Thotton <sthotton@...vell.com>
Tested-by: Andre Przywara <andre.przywara@....com>
Cc: linux-arch@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-mips@...r.kernel.org
Cc: linux-kselftest@...r.kernel.org
Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Will Deacon <will.deacon@....com>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Russell King <linux@...linux.org.uk>
Cc: Ralf Baechle <ralf@...ux-mips.org>
Cc: Paul Burton <paul.burton@...s.com>
Cc: Daniel Lezcano <daniel.lezcano@...aro.org>
Cc: Mark Salyzyn <salyzyn@...roid.com>
Cc: Peter Collingbourne <pcc@...gle.com>
Cc: Shuah Khan <shuah@...nel.org>
Cc: Dmitry Safonov <0x7f454c46@...il.com>
Cc: Rasmus Villemoes <linux@...musvillemoes.dk>
Cc: Huw Davies <huw@...eweavers.com>
Link: https://lkml.kernel.org/r/20190621095252.32307-9-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 14c99b7a0c0e..e6f7409a78a4 100644
--- a/arch/arm64/kernel/asm-offsets.c
+++ b/arch/arm64/kernel/asm-offsets.c
@@ -19,6 +19,7 @@
 #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>
@@ -66,6 +67,11 @@ 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));