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From: "Eric W. Biederman" <ebiederm@xmission.com>
To: linux-kernel@vger.kernel.org
Cc: Al Viro <viro@zeniv.linux.org.uk>,
	Oleg Nesterov <oleg@redhat.com>,
	linux-arch@vger.kernel.org,
	"Eric W. Biederman" <ebiederm@xmission.com>
Subject: [PATCH 15/22] signal/ia64: Move the ia64 specific si_codes to asm-generic/siginfo.h
Date: Mon, 15 Jan 2018 18:40:02 -0600	[thread overview]
Message-ID: <20180116004009.31036-15-ebiederm@xmission.com> (raw)
In-Reply-To: <87k1wimybi.fsf_-_@xmission.com>

Having si_codes in many different files simply encourages duplicate
definitions that can cause problems later.  To avoid that merge the
ia64 specific si_codes into uapi/asm-generic/siginfo.h

Update the sanity checks in arch/x86/kernel/signal_compat.c to expect
the now lager NSIGILL and NSIGFPE.  As nothing excpe the larger count
is exposed on x86 no additional code needs to be updated.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---
 arch/ia64/include/uapi/asm/siginfo.h | 27 ---------------------------
 arch/x86/kernel/signal_compat.c      |  4 ++--
 include/uapi/asm-generic/siginfo.h   | 22 +++++++++++++++++++---
 3 files changed, 21 insertions(+), 32 deletions(-)

diff --git a/arch/ia64/include/uapi/asm/siginfo.h b/arch/ia64/include/uapi/asm/siginfo.h
index 66839031b767..5aa454ed89db 100644
--- a/arch/ia64/include/uapi/asm/siginfo.h
+++ b/arch/ia64/include/uapi/asm/siginfo.h
@@ -27,38 +27,11 @@
 #define __ISR_VALID_BIT	0
 #define __ISR_VALID	(1 << __ISR_VALID_BIT)
 
-/*
- * SIGILL si_codes
- */
-#define ILL_BADIADDR	9	/* unimplemented instruction address */
-#define __ILL_BREAK	10	/* illegal break */
-#define __ILL_BNDMOD	11	/* bundle-update (modification) in progress */
-#undef NSIGILL
-#define NSIGILL		11
-
 /*
  * SIGFPE si_codes
  */
 #ifdef __KERNEL__
 #define FPE_FIXME	0	/* Broken dup of SI_USER */
 #endif /* __KERNEL__ */
-#define __FPE_DECOVF	9	/* decimal overflow */
-#define __FPE_DECDIV	10	/* decimal division by zero */
-#define __FPE_DECERR	11	/* packed decimal error */
-#define __FPE_INVASC	12	/* invalid ASCII digit */
-#define __FPE_INVDEC	13	/* invalid decimal digit */
-#undef NSIGFPE
-#define NSIGFPE		13
-
-/*
- * SIGSEGV si_codes
- */
-#define __SEGV_PSTKOVF	4	/* paragraph stack overflow */
-#undef NSIGSEGV
-#define NSIGSEGV	4
-
-#undef NSIGTRAP
-#define NSIGTRAP	4
-
 
 #endif /* _UAPI_ASM_IA64_SIGINFO_H */
diff --git a/arch/x86/kernel/signal_compat.c b/arch/x86/kernel/signal_compat.c
index 27495909932d..feb3ac135d0c 100644
--- a/arch/x86/kernel/signal_compat.c
+++ b/arch/x86/kernel/signal_compat.c
@@ -25,8 +25,8 @@ static inline void signal_compat_build_tests(void)
 	 * limits also have to look at this code.  Make sure any
 	 * new fields are handled in copy_siginfo_to_user32()!
 	 */
-	BUILD_BUG_ON(NSIGILL  != 8);
-	BUILD_BUG_ON(NSIGFPE  != 8);
+	BUILD_BUG_ON(NSIGILL  != 11);
+	BUILD_BUG_ON(NSIGFPE  != 13);
 	BUILD_BUG_ON(NSIGSEGV != 4);
 	BUILD_BUG_ON(NSIGBUS  != 5);
 	BUILD_BUG_ON(NSIGTRAP != 4);
diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
index eef4d778a5d4..2f0ae4607603 100644
--- a/include/uapi/asm-generic/siginfo.h
+++ b/include/uapi/asm-generic/siginfo.h
@@ -186,7 +186,12 @@ typedef struct siginfo {
 #define ILL_PRVREG	6	/* privileged register */
 #define ILL_COPROC	7	/* coprocessor error */
 #define ILL_BADSTK	8	/* internal stack error */
-#define NSIGILL		8
+#ifdef __ia64__
+# define ILL_BADIADDR	9	/* unimplemented instruction address */
+# define __ILL_BREAK	10	/* illegal break */
+# define __ILL_BNDMOD	11	/* bundle-update (modification) in progress */
+#endif
+#define NSIGILL		11
 
 /*
  * SIGFPE si_codes
@@ -199,7 +204,14 @@ typedef struct siginfo {
 #define FPE_FLTRES	6	/* floating point inexact result */
 #define FPE_FLTINV	7	/* floating point invalid operation */
 #define FPE_FLTSUB	8	/* subscript out of range */
-#define NSIGFPE		8
+#ifdef __ia64__
+# define __FPE_DECOVF	9	/* decimal overflow */
+# define __FPE_DECDIV	10	/* decimal division by zero */
+# define __FPE_DECERR	11	/* packed decimal error */
+# define __FPE_INVASC	12	/* invalid ASCII digit */
+# define __FPE_INVDEC	13	/* invalid decimal digit */
+#endif
+#define NSIGFPE		13
 
 /*
  * SIGSEGV si_codes
@@ -207,7 +219,11 @@ typedef struct siginfo {
 #define SEGV_MAPERR	1	/* address not mapped to object */
 #define SEGV_ACCERR	2	/* invalid permissions for mapped object */
 #define SEGV_BNDERR	3	/* failed address bound checks */
-#define SEGV_PKUERR	4	/* failed protection key checks */
+#ifdef __ia64__
+# define __SEGV_PSTKOVF	4	/* paragraph stack overflow */
+#else
+# define SEGV_PKUERR	4	/* failed protection key checks */
+#endif
 #define NSIGSEGV	4
 
 /*
-- 
2.14.1

  parent reply	other threads:[~2018-01-16  0:46 UTC|newest]

Thread overview: 89+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-12  0:57 [PATCH 00/11] siginfo fixes/cleanups esp SI_USER Eric W. Biederman
2018-01-12  0:59 ` [PATCH 01/11] signal: Simplify and fix kdb_send_sig Eric W. Biederman
2018-01-12  0:59 ` [PATCH 02/11] signal/sh: Ensure si_signo is initialized in do_divide_error Eric W. Biederman
2018-01-12  0:59 ` [PATCH 03/11] signal/openrisc: Fix do_unaligned_access to send the proper signal Eric W. Biederman
2018-01-12 13:25   ` Stafford Horne
2018-01-12 17:37     ` Eric W. Biederman
2018-01-12  0:59 ` [PATCH 04/11] signal/parisc: Document a conflict with SI_USER with SIGFPE Eric W. Biederman
2018-01-12 22:29   ` Helge Deller
2018-01-13 21:06     ` Eric W. Biederman
2018-01-14  1:46       ` Eric W. Biederman
2018-02-23  0:15     ` Eric W. Biederman
2018-02-25 19:49       ` Helge Deller
2018-02-27  2:19         ` Eric W. Biederman
2018-01-12  0:59 ` [PATCH 05/11] signal/metag: " Eric W. Biederman
2018-01-12  0:59 ` [PATCH 06/11] signal/powerpc: Document conflicts with SI_USER and SIGFPE and SIGTRAP Eric W. Biederman
2018-01-12  0:59 ` [PATCH 07/11] signal/arm64: Document conflicts with SI_USER and SIGFPE,SIGTRAP,SIGBUS Eric W. Biederman
2018-01-15 16:30   ` [PATCH 07/11] signal/arm64: Document conflicts with SI_USER and SIGFPE, SIGTRAP, SIGBUS Dave Martin
2018-01-15 17:23     ` Eric W. Biederman
2018-01-16 17:24       ` Dave Martin
2018-01-16 22:28         ` Eric W. Biederman
2018-01-17 11:46           ` Dave Martin
2018-01-17 11:57           ` Russell King - ARM Linux
2018-01-17 12:15             ` Dave Martin
2018-01-17 12:37               ` Russell King - ARM Linux
2018-01-17 15:37                 ` Dave Martin
2018-01-17 15:49                   ` Russell King - ARM Linux
2018-01-17 16:11                     ` Dave Martin
2018-01-17 16:45                 ` Eric W. Biederman
2018-01-17 17:14                   ` Russell King - ARM Linux
2018-01-24 21:28                     ` Eric W. Biederman
2018-01-17 17:17       ` Dave Martin
2018-01-17 17:24         ` Eric W. Biederman
2018-01-17 17:39           ` Dave Martin
2018-01-15 19:30     ` James Morse
2018-01-12  0:59 ` [PATCH 08/11] signal/arm: Document conflicts with SI_USER and SIGFPE Eric W. Biederman
2018-01-15 17:49   ` Russell King - ARM Linux
2018-01-15 20:12     ` Eric W. Biederman
2018-01-16 17:41     ` Dave Martin
2018-01-19 12:05     ` Dave Martin
2018-01-12  0:59 ` [PATCH 09/11] signal: Reduce copy_siginfo to just a memcpy Eric W. Biederman
2018-01-12  0:59 ` [PATCH 10/11] signal: Introduce clear_siginfo Eric W. Biederman
2018-01-12  0:59 ` [PATCH 11/11] signal: Ensure generic siginfos the kernel sends have all bits initialized Eric W. Biederman
2018-01-12 20:29 ` [PATCH 0/2] siginfo fixes Eric W. Biederman
2018-01-12 20:31   ` [PATCH 1/2] mn10300/misalignment: Use SIGSEGV SEGV_MAPERR to report a failed user copy Eric W. Biederman
2018-01-12 20:31   ` [PATCH 2/2] x86/mm/pkeys: Fix fill_sig_info_pkey Eric W. Biederman
2018-01-14 11:44     ` [tip:x86/urgent] " tip-bot for Eric W. Biederman
2018-01-16  0:39   ` [PATCH 00/22] siginfo unification Eric W. Biederman
2018-01-16  0:39     ` [PATCH 01/22] signal: Document all of the signals that use the _sigfault union member Eric W. Biederman
2018-01-16  0:39     ` [PATCH 02/22] signal: Document the strange si_codes used by ptrace event stops Eric W. Biederman
2018-01-16  0:39     ` [PATCH 03/22] signal: Document glibc's si_code of SI_ASYNCNL Eric W. Biederman
2018-01-16  0:39     ` [PATCH 04/22] signal: Ensure no siginfo union member increases the size of struct siginfo Eric W. Biederman
2018-01-16  0:39     ` [PATCH 05/22] signal: Clear si_sys_private before copying siginfo to userspace Eric W. Biederman
2018-01-16  0:39     ` [PATCH 06/22] signal: Remove _sys_private and _overrun_incr from struct compat_siginfo Eric W. Biederman
2018-01-16  0:39     ` [PATCH 07/22] ia64/signal: switch to generic struct siginfo Eric W. Biederman
2018-01-16  0:39     ` [PATCH 08/22] signal/ia64: switch the last arch-specific copy_siginfo_to_user() to generic version Eric W. Biederman
2018-01-16  0:39     ` [PATCH 09/22] signal/mips: switch mips to generic siginfo Eric W. Biederman
2018-01-16  0:39     ` [PATCH 10/22] signal: Remove unnecessary ifdefs now that there is only one struct siginfo Eric W. Biederman
2018-01-16  0:39     ` [PATCH 11/22] signal: kill __ARCH_SI_UID_T Eric W. Biederman
2018-01-16  0:39     ` [PATCH 12/22] signal: unify compat_siginfo_t Eric W. Biederman
2018-01-16  0:40     ` [PATCH 13/22] signal: Move addr_lsb into the _sigfault union for clarity Eric W. Biederman
2018-03-16 19:00       ` Dave Hansen
2018-03-16 19:24         ` Dave Hansen
2018-03-16 20:06           ` Eric W. Biederman
2018-03-16 20:33             ` Dave Hansen
2018-03-16 21:08               ` Eric W. Biederman
2018-01-16  0:40     ` [PATCH 14/22] signal/powerpc: Remove redefinition of NSIGTRAP on powerpc Eric W. Biederman
2018-01-16  0:40     ` Eric W. Biederman [this message]
2018-01-16  0:40     ` [PATCH 16/22] signal/frv: Move the frv specific si_codes to asm-generic/siginfo.h Eric W. Biederman
2018-01-16  0:40     ` [PATCH 17/22] signal/tile: Move the tile " Eric W. Biederman
2018-01-16  0:40     ` [PATCH 18/22] signal/blackfin: Move the blackfin " Eric W. Biederman
2018-01-16  0:40     ` [PATCH 19/22] signal/blackfin: Remove pointless UID16_SIGINFO_COMPAT_NEEDED Eric W. Biederman
2018-01-16  0:40     ` [PATCH 20/22] signal: Unify and correct copy_siginfo_from_user32 Eric W. Biederman
2018-01-16  0:40     ` [PATCH 21/22] signal: Remove the code to clear siginfo before calling copy_siginfo_from_user32 Eric W. Biederman
2018-01-16  0:40     ` [PATCH 22/22] signal: Unify and correct copy_siginfo_to_user32 Eric W. Biederman
2018-01-19 18:03       ` Al Viro
2018-01-19 21:04         ` Eric W. Biederman
2018-01-23 21:05     ` [PATCH 00/10] siginfo infrastructure Eric W. Biederman
2018-01-23 21:07       ` [PATCH 01/10] ptrace: Use copy_siginfo in setsiginfo and getsiginfo Eric W. Biederman
2018-01-23 21:07       ` [PATCH 02/10] signal/arm64: Better isolate the COMPAT_TASK portion of ptrace_hbptriggered Eric W. Biederman
2018-01-23 21:07       ` [PATCH 03/10] signal: Don't use structure initializers for struct siginfo Eric W. Biederman
2018-01-23 21:07       ` [PATCH 04/10] signal: Replace memset(info,...) with clear_siginfo for clarity Eric W. Biederman
2018-01-23 21:07       ` [PATCH 05/10] signal: Add send_sig_fault and force_sig_fault Eric W. Biederman
2018-01-23 21:07       ` [PATCH 06/10] signal: Helpers for faults with specialized siginfo layouts Eric W. Biederman
2018-01-24 19:26         ` Ram Pai
2018-01-24 20:54           ` Eric W. Biederman
2018-01-23 21:07       ` [PATCH 07/10] signal/powerpc: Remove unnecessary signal_code parameter of do_send_trap Eric W. Biederman
2018-01-23 21:07       ` [PATCH 08/10] signal/ptrace: Add force_sig_ptrace_errno_trap and use it where needed Eric W. Biederman
2018-01-23 21:07       ` [PATCH 09/10] mm/memory_failure: Remove unused trapno from memory_failure Eric W. Biederman
2018-01-23 21:07       ` [PATCH 10/10] signal/memory-failure: Use force_sig_mceerr and send_sig_mceerr Eric W. Biederman

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