Commit-ID: 206c0dfa3c55bf31f9d78da3d7384b9343745153
Gitweb: https://git.kernel.org/tip/206c0dfa3c55bf31f9d78da3d7384b9343745153
Author: Vincenzo Frascino <vincenzo.frascino@xxxxxxx>
AuthorDate: Fri, 21 Jun 2019 10:52:34 +0100
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Sat, 22 Jun 2019 21:21:07 +0200
arm64: compat: Expose signal related structures
The compat signal data structures are required as part of the compat
vDSO implementation in order to provide the unwinding information for
the sigreturn trampolines.
Expose these data structures as part of signal32.h.
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@xxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Tested-by: Shijith Thotton <sthotton@xxxxxxxxxxx>
Tested-by: Andre Przywara <andre.przywara@xxxxxxx>
Cc: linux-arch@xxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-mips@xxxxxxxxxxxxxxx
Cc: linux-kselftest@xxxxxxxxxxxxxxx
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: Paul Burton <paul.burton@xxxxxxxx>
Cc: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Cc: Mark Salyzyn <salyzyn@xxxxxxxxxxx>
Cc: Peter Collingbourne <pcc@xxxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Cc: Dmitry Safonov <0x7f454c46@xxxxxxxxx>
Cc: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Cc: Huw Davies <huw@xxxxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/20190621095252.32307-8-vincenzo.frascino@xxxxxxx
---
arch/arm64/include/asm/signal32.h | 46 +++++++++++++++++++++++++++++++++++++++
arch/arm64/kernel/signal32.c | 46 ---------------------------------------
2 files changed, 46 insertions(+), 46 deletions(-)
diff --git a/arch/arm64/include/asm/signal32.h b/arch/arm64/include/asm/signal32.h
index 0418c67f2b8b..bd43d1cf724b 100644
--- a/arch/arm64/include/asm/signal32.h
+++ b/arch/arm64/include/asm/signal32.h
@@ -9,6 +9,52 @@
#ifdef CONFIG_COMPAT
#include <linux/compat.h>
+struct compat_sigcontext {
+ /* We always set these two fields to 0 */
+ compat_ulong_t trap_no;
+ compat_ulong_t error_code;
+
+ compat_ulong_t oldmask;
+ compat_ulong_t arm_r0;
+ compat_ulong_t arm_r1;
+ compat_ulong_t arm_r2;
+ compat_ulong_t arm_r3;
+ compat_ulong_t arm_r4;
+ compat_ulong_t arm_r5;
+ compat_ulong_t arm_r6;
+ compat_ulong_t arm_r7;
+ compat_ulong_t arm_r8;
+ compat_ulong_t arm_r9;
+ compat_ulong_t arm_r10;
+ compat_ulong_t arm_fp;
+ compat_ulong_t arm_ip;
+ compat_ulong_t arm_sp;
+ compat_ulong_t arm_lr;
+ compat_ulong_t arm_pc;
+ compat_ulong_t arm_cpsr;
+ compat_ulong_t fault_address;
+};
+
+struct compat_ucontext {
+ compat_ulong_t uc_flags;
+ compat_uptr_t uc_link;
+ compat_stack_t uc_stack;
+ struct compat_sigcontext uc_mcontext;
+ compat_sigset_t uc_sigmask;
+ int __unused[32 - (sizeof(compat_sigset_t) / sizeof(int))];
+ compat_ulong_t uc_regspace[128] __attribute__((__aligned__(8)));
+};
+
+struct compat_sigframe {
+ struct compat_ucontext uc;
+ compat_ulong_t retcode[2];
+};
+
+struct compat_rt_sigframe {
+ struct compat_siginfo info;
+ struct compat_sigframe sig;
+};
+
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/signal32.c b/arch/arm64/kernel/signal32.c
index 331d1e5acad4..8a9a5ceb63b7 100644
--- a/arch/arm64/kernel/signal32.c
+++ b/arch/arm64/kernel/signal32.c
@@ -19,42 +19,6 @@
#include <linux/uaccess.h>
#include <asm/unistd.h>
-struct compat_sigcontext {
- /* We always set these two fields to 0 */
- compat_ulong_t trap_no;
- compat_ulong_t error_code;
-
- compat_ulong_t oldmask;
- compat_ulong_t arm_r0;
- compat_ulong_t arm_r1;
- compat_ulong_t arm_r2;
- compat_ulong_t arm_r3;
- compat_ulong_t arm_r4;
- compat_ulong_t arm_r5;
- compat_ulong_t arm_r6;
- compat_ulong_t arm_r7;
- compat_ulong_t arm_r8;
- compat_ulong_t arm_r9;
- compat_ulong_t arm_r10;
- compat_ulong_t arm_fp;
- compat_ulong_t arm_ip;
- compat_ulong_t arm_sp;
- compat_ulong_t arm_lr;
- compat_ulong_t arm_pc;
- compat_ulong_t arm_cpsr;
- compat_ulong_t fault_address;
-};
-
-struct compat_ucontext {
- compat_ulong_t uc_flags;
- compat_uptr_t uc_link;
- compat_stack_t uc_stack;
- struct compat_sigcontext uc_mcontext;
- compat_sigset_t uc_sigmask;
- int __unused[32 - (sizeof (compat_sigset_t) / sizeof (int))];
- compat_ulong_t uc_regspace[128] __attribute__((__aligned__(8)));
-};
-
struct compat_vfp_sigframe {
compat_ulong_t magic;
compat_ulong_t size;
@@ -81,16 +45,6 @@ struct compat_aux_sigframe {
unsigned long end_magic;
} __attribute__((__aligned__(8)));
-struct compat_sigframe {
- struct compat_ucontext uc;
- compat_ulong_t retcode[2];
-};
-
-struct compat_rt_sigframe {
- struct compat_siginfo info;
- struct compat_sigframe sig;
-};
-
#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
static inline int put_sigset_t(compat_sigset_t __user *uset, sigset_t *set)
|