From: Vincenzo Frascino <vincenzo.frascino@arm.com> To: linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Arnd Bergmann <arnd@arndb.de>, Catalin Marinas <catalin.marinas@arm.com>, Daniel Lezcano <daniel.lezcano@linaro.org>, Will Deacon <will.deacon@arm.com>, Russell King <linux@armlinux.org.uk>, Ralf Baechle <ralf@linux-mips.org>, Mark Salyzyn <salyzyn@android.com>, Paul Burton <paul.burton@mips.com>, Thomas Gleixner <tglx@linutronix.de>, Peter Collingbourne <pcc@google.com> Subject: [PATCH v2 15/28] arm64: compat: Generate asm offsets for signals Date: Thu, 29 Nov 2018 17:05:17 +0000 [thread overview] Message-ID: <20181129170530.37789-16-vincenzo.frascino@arm.com> (raw) In-Reply-To: <20181129170530.37789-1-vincenzo.frascino@arm.com> This patch updates 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/include/asm/signal32.h | 14 +++++++++++++- arch/arm64/kernel/asm-offsets.c | 6 ++++++ 2 files changed, 19 insertions(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/signal32.h b/arch/arm64/include/asm/signal32.h index 1f05268f4c6d..a6fd7be1b22a 100644 --- a/arch/arm64/include/asm/signal32.h +++ b/arch/arm64/include/asm/signal32.h @@ -52,7 +52,7 @@ struct compat_ucontext { compat_stack_t uc_stack; struct compat_sigcontext uc_mcontext; compat_sigset_t uc_sigmask; - int __unused[32 - (sizeof(compat_sigset_t) / sizeof(int))]; + int __unused[32 - (sizeof(compat_sigset_t) / sizeof(int))]; compat_ulong_t uc_regspace[128] __attribute__((__aligned__(8))); }; @@ -66,6 +66,18 @@ struct compat_rt_sigframe { struct compat_sigframe sig; }; +/* Macros for asm-offsets.c */ +#define OFFSET_OF_COMPAT_SIGFRAME_REGS ( \ + offsetof(struct compat_sigframe, uc) + \ + offsetof(struct compat_ucontext, uc_mcontext) + \ + offsetof(struct compat_sigcontext, arm_r0)) + +#define OFFSET_OF_COMPAT_RT_SIGFRAME_REGS ( \ + offsetof(struct compat_rt_sigframe, sig) + \ + offsetof(struct compat_sigframe, uc) + \ + offsetof(struct compat_ucontext, uc_mcontext) + \ + offsetof(struct compat_sigcontext, arm_r0)) + int compat_setup_frame(int usig, struct ksignal *ksig, sigset_t *set, struct pt_regs *regs); int compat_setup_rt_frame(int usig, struct ksignal *ksig, sigset_t *set, diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c index 06cfd2363a86..4f8317c23908 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> @@ -81,6 +82,11 @@ 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, OFFSET_OF_COMPAT_SIGFRAME_REGS); + DEFINE(COMPAT_RT_SIGFRAME_REGS_OFFSET, OFFSET_OF_COMPAT_RT_SIGFRAME_REGS); + 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)); -- 2.19.2
WARNING: multiple messages have this Message-ID (diff)
From: Vincenzo Frascino <vincenzo.frascino@arm.com> To: linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.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> Subject: [PATCH v2 15/28] arm64: compat: Generate asm offsets for signals Date: Thu, 29 Nov 2018 17:05:17 +0000 [thread overview] Message-ID: <20181129170530.37789-16-vincenzo.frascino@arm.com> (raw) Message-ID: <20181129170517.vagkcmI2B57IhMoIQZ0VkO_SZLAEUMoQfSzXUtxbG8Y@z> (raw) In-Reply-To: <20181129170530.37789-1-vincenzo.frascino@arm.com> This patch updates 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/include/asm/signal32.h | 14 +++++++++++++- arch/arm64/kernel/asm-offsets.c | 6 ++++++ 2 files changed, 19 insertions(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/signal32.h b/arch/arm64/include/asm/signal32.h index 1f05268f4c6d..a6fd7be1b22a 100644 --- a/arch/arm64/include/asm/signal32.h +++ b/arch/arm64/include/asm/signal32.h @@ -52,7 +52,7 @@ struct compat_ucontext { compat_stack_t uc_stack; struct compat_sigcontext uc_mcontext; compat_sigset_t uc_sigmask; - int __unused[32 - (sizeof(compat_sigset_t) / sizeof(int))]; + int __unused[32 - (sizeof(compat_sigset_t) / sizeof(int))]; compat_ulong_t uc_regspace[128] __attribute__((__aligned__(8))); }; @@ -66,6 +66,18 @@ struct compat_rt_sigframe { struct compat_sigframe sig; }; +/* Macros for asm-offsets.c */ +#define OFFSET_OF_COMPAT_SIGFRAME_REGS ( \ + offsetof(struct compat_sigframe, uc) + \ + offsetof(struct compat_ucontext, uc_mcontext) + \ + offsetof(struct compat_sigcontext, arm_r0)) + +#define OFFSET_OF_COMPAT_RT_SIGFRAME_REGS ( \ + offsetof(struct compat_rt_sigframe, sig) + \ + offsetof(struct compat_sigframe, uc) + \ + offsetof(struct compat_ucontext, uc_mcontext) + \ + offsetof(struct compat_sigcontext, arm_r0)) + int compat_setup_frame(int usig, struct ksignal *ksig, sigset_t *set, struct pt_regs *regs); int compat_setup_rt_frame(int usig, struct ksignal *ksig, sigset_t *set, diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c index 06cfd2363a86..4f8317c23908 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> @@ -81,6 +82,11 @@ 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, OFFSET_OF_COMPAT_SIGFRAME_REGS); + DEFINE(COMPAT_RT_SIGFRAME_REGS_OFFSET, OFFSET_OF_COMPAT_RT_SIGFRAME_REGS); + 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)); -- 2.19.2
next prev parent reply other threads:[~2018-11-29 17:05 UTC|newest] Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-11-29 17:05 [PATCH v2 00/28] Unify vDSOs across more architectures Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 01/28] kernel: Standardize vdso_datapage Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 22:39 ` Thomas Gleixner 2018-11-29 22:39 ` Thomas Gleixner 2018-12-11 13:22 ` Vincenzo Frascino 2018-12-11 13:22 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 02/28] kernel: Add Monotonic boot time support Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 03/28] kernel: Add International Atomic Time support Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 04/28] kernel: Add masks support for Raw and NTP time Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 22:41 ` Thomas Gleixner 2018-11-29 22:41 ` Thomas Gleixner 2018-12-11 13:24 ` Vincenzo Frascino 2018-12-11 13:24 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 05/28] kernel: Add clock_mode support Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 06/28] kernel: Define gettimeofday vdso common code Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 20:42 ` Arnd Bergmann 2018-11-29 20:42 ` Arnd Bergmann 2018-12-11 13:39 ` Vincenzo Frascino 2018-12-11 13:39 ` Vincenzo Frascino 2018-12-11 21:41 ` Arnd Bergmann 2018-12-11 21:41 ` Arnd Bergmann 2018-12-13 9:46 ` Vincenzo Frascino 2018-12-13 9:46 ` Vincenzo Frascino 2018-11-29 22:11 ` Thomas Gleixner 2018-11-29 22:11 ` Thomas Gleixner 2018-11-30 14:29 ` Arnd Bergmann 2018-11-30 14:29 ` Arnd Bergmann 2018-12-11 14:02 ` Vincenzo Frascino 2018-12-11 14:02 ` Vincenzo Frascino 2018-12-07 17:53 ` Will Deacon 2018-12-07 17:53 ` Will Deacon 2019-02-08 17:35 ` Will Deacon 2019-02-08 17:35 ` Will Deacon 2019-02-08 19:28 ` Thomas Gleixner 2019-02-08 19:28 ` Thomas Gleixner 2019-02-08 19:30 ` Thomas Gleixner 2019-02-08 19:30 ` Thomas Gleixner 2019-02-13 17:04 ` Will Deacon 2019-02-13 17:04 ` Will Deacon 2019-02-13 19:35 ` Thomas Gleixner 2019-02-13 19:35 ` Thomas Gleixner 2019-02-13 17:05 ` Will Deacon 2019-02-13 17:05 ` Will Deacon 2018-12-11 13:54 ` Vincenzo Frascino 2018-12-11 13:54 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 07/28] arm64: Build vDSO with -ffixed-x18 Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 08/28] arm64: Substitute gettimeofday with C implementation Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 09/28] arm64: compat: Alloc separate pages for vectors and sigpage Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 10/28] arm64: compat: Split kuser32 Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 11/28] arm64: compat: Refactor aarch32_alloc_vdso_pages() Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 12/28] arm64: compat: Add KUSER_HELPERS config option Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 13/28] arm64: compat: Add missing syscall numbers Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 14/28] arm64: compat: Expose signal related structures Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino [this message] 2018-11-29 17:05 ` [PATCH v2 15/28] arm64: compat: Generate asm offsets for signals Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 16/28] lib: vdso: Add compat support Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 17/28] arm64: compat: Add vDSO Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 18/28] arm64: Refactor vDSO code Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 19/28] arm64: compat: vDSO setup for compat layer Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 20/28] arm64: elf: vDSO code page discovery Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 21/28] arm64: compat: Get sigreturn trampolines from vDSO Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 22/28] arm64: Add vDSO compat support Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 23/28] arm64: Enable compat vDSO support Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 24/28] arm: Add support for generic vDSO Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-12-10 22:13 ` Mark Salyzyn 2018-12-10 22:13 ` Mark Salyzyn 2018-12-11 14:15 ` Vincenzo Frascino 2018-12-11 14:15 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 25/28] mips: Introduce vdso_direct Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 26/28] clock: csrc-4k: Add support for vdso_direct Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 27/28] clock: gic-timer: " Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino 2018-11-29 17:05 ` [PATCH v2 28/28] mips: Add support for generic vDSO Vincenzo Frascino 2018-11-29 17:05 ` Vincenzo Frascino
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