[PATCH v6 4/9] signal: Expose SYS_USER_DISPATCH si_code type
From: Gabriel Krisman Bertazi <hidden>
Date: 2020-09-04 20:32:47
Also in:
linux-kselftest, lkml
Subsystem:
generic include/asm header files, the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Arnd Bergmann, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
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 <redacted> --- 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