From: Gabriel Krisman Bertazi <krisman@collabora.com>
To: luto@kernel.org, tglx@linutronix.de, keescook@chromium.org
Cc: x86@kernel.org, linux-kernel@vger.kernel.org,
linux-api@vger.kernel.org, willy@infradead.org,
linux-kselftest@vger.kernel.org, shuah@kernel.org,
Gabriel Krisman Bertazi <krisman@collabora.com>,
kernel@collabora.com
Subject: [PATCH v6 4/9] signal: Expose SYS_USER_DISPATCH si_code type
Date: Fri, 4 Sep 2020 16:31:42 -0400 [thread overview]
Message-ID: <20200904203147.2908430-5-krisman@collabora.com> (raw)
In-Reply-To: <20200904203147.2908430-1-krisman@collabora.com>
SYS_USER_DISPATCH will be triggered when a syscall is sent to userspace
by the Syscall User Dispatch mechanism. This adjusts eventual
BUILD_BUG_ON around the tree.
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
---
arch/x86/kernel/signal_compat.c | 2 +-
include/uapi/asm-generic/siginfo.h | 3 ++-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/signal_compat.c b/arch/x86/kernel/signal_compat.c
index 9ccbf0576cd0..210aecc6eab9 100644
--- a/arch/x86/kernel/signal_compat.c
+++ b/arch/x86/kernel/signal_compat.c
@@ -31,7 +31,7 @@ static inline void signal_compat_build_tests(void)
BUILD_BUG_ON(NSIGBUS != 5);
BUILD_BUG_ON(NSIGTRAP != 5);
BUILD_BUG_ON(NSIGCHLD != 6);
- BUILD_BUG_ON(NSIGSYS != 1);
+ BUILD_BUG_ON(NSIGSYS != 2);
/* This is part of the ABI and can never change in size: */
BUILD_BUG_ON(sizeof(compat_siginfo_t) != 128);
diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
index cb3d6c267181..37741908b846 100644
--- a/include/uapi/asm-generic/siginfo.h
+++ b/include/uapi/asm-generic/siginfo.h
@@ -284,7 +284,8 @@ typedef struct siginfo {
* SIGSYS si_codes
*/
#define SYS_SECCOMP 1 /* seccomp triggered */
-#define NSIGSYS 1
+#define SYS_USER_DISPATCH 2 /* syscall user dispatch triggered */
+#define NSIGSYS 2
/*
* SIGEMT si_codes
--
2.28.0
next prev parent reply other threads:[~2020-09-04 20:32 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-04 20:31 [PATCH v6 0/9] Syscall User Dispatch Gabriel Krisman Bertazi
2020-09-04 20:31 ` [PATCH v6 1/9] kernel: Support TIF_SYSCALL_INTERCEPT flag Gabriel Krisman Bertazi
2020-09-07 10:16 ` Christian Brauner
2020-09-08 4:59 ` Gabriel Krisman Bertazi
2020-09-22 19:42 ` Kees Cook
2020-09-23 20:28 ` Gabriel Krisman Bertazi
2020-09-11 9:32 ` peterz
2020-09-11 20:08 ` Gabriel Krisman Bertazi
2020-09-24 11:24 ` Peter Zijlstra
2020-09-22 19:44 ` Kees Cook
2020-09-23 20:18 ` Gabriel Krisman Bertazi
2020-09-23 20:49 ` Kees Cook
2020-09-25 8:00 ` Thomas Gleixner
2020-09-25 16:15 ` Gabriel Krisman Bertazi
2020-09-25 20:30 ` Kees Cook
2020-09-04 20:31 ` [PATCH v6 2/9] kernel: entry: Support TIF_SYSCAL_INTERCEPT on common entry code Gabriel Krisman Bertazi
2020-09-07 10:16 ` Christian Brauner
2020-09-11 9:35 ` peterz
2020-09-11 20:11 ` Gabriel Krisman Bertazi
2020-09-04 20:31 ` [PATCH v6 3/9] x86: vdso: Expose sigreturn address on vdso to the kernel Gabriel Krisman Bertazi
2020-09-22 19:40 ` Kees Cook
2020-09-04 20:31 ` Gabriel Krisman Bertazi [this message]
2020-09-07 10:15 ` [PATCH v6 4/9] signal: Expose SYS_USER_DISPATCH si_code type Christian Brauner
2020-09-22 19:39 ` Kees Cook
2020-09-04 20:31 ` [PATCH v6 5/9] kernel: Implement selective syscall userspace redirection Gabriel Krisman Bertazi
2020-09-05 11:24 ` Matthew Wilcox
2020-09-11 9:44 ` peterz
2020-09-04 20:31 ` [PATCH v6 6/9] kernel: entry: Support Syscall User Dispatch for common syscall entry Gabriel Krisman Bertazi
2020-09-07 10:15 ` Christian Brauner
2020-09-07 14:15 ` Andy Lutomirski
2020-09-07 14:25 ` Christian Brauner
2020-09-07 20:20 ` Andy Lutomirski
2020-09-11 9:46 ` peterz
2020-09-04 20:31 ` [PATCH v6 7/9] x86: Enable Syscall User Dispatch Gabriel Krisman Bertazi
2020-09-22 19:37 ` Kees Cook
2020-09-23 20:23 ` Gabriel Krisman Bertazi
2020-09-04 20:31 ` [PATCH v6 8/9] selftests: Add kselftest for syscall user dispatch Gabriel Krisman Bertazi
2020-09-22 19:35 ` Kees Cook
2020-09-04 20:31 ` [PATCH v6 9/9] doc: Document Syscall User Dispatch Gabriel Krisman Bertazi
2020-09-22 19:35 ` Kees Cook
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