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Groups > linux.kernel > #1262781
| From | Amanieu d'Antras <amanieu@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 03/20] x86: Update compat_siginfo_t to be closer to the generic version |
| Date | 2015-11-05 02:00 +0100 |
| Message-ID | <qrh4f-7PW-35@gated-at.bofh.it> (permalink) |
| References | <qrh4d-7PW-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
x86 can't use the generic compat_siginfo_t because it needs to
support x32, so we just change it to be closer to the generic
version.
The only significant change is the addition of several fields in
_sigfault that were previously omitted.
Signed-off-by: Amanieu d'Antras <amanieu@gmail.com>
---
arch/x86/include/asm/compat.h | 35 +++++++++++++++++++++--------------
1 file changed, 21 insertions(+), 14 deletions(-)
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index c6b58b1..3643dac 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -130,6 +130,7 @@ typedef union compat_sigval {
compat_uptr_t sival_ptr;
} compat_sigval_t;
+/* Need special handling for SIGCHLD on x32 */
#define HAVE_ARCH_COMPAT_SIGINFO_T
#define HAVE_ARCH_COPY_SIGINFO_TO_USER32
#define HAVE_ARCH_COPY_SIGINFO_FROM_USER32
@@ -140,12 +141,12 @@ typedef struct compat_siginfo {
int si_code;
union {
- int _pad[128/sizeof(int) - 3];
+ int _pad[128 / sizeof(int) - 3];
/* kill() */
struct {
- unsigned int _pid; /* sender's pid */
- unsigned int _uid; /* sender's uid */
+ compat_pid_t _pid; /* sender's pid */
+ __compat_uid32_t _uid; /* sender's uid */
} _kill;
/* POSIX.1b timers */
@@ -153,21 +154,19 @@ typedef struct compat_siginfo {
compat_timer_t _tid; /* timer id */
int _overrun; /* overrun count */
compat_sigval_t _sigval; /* same as below */
- int _sys_private; /* not to be passed to user */
- int _overrun_incr; /* amount to add to overrun */
} _timer;
/* POSIX.1b signals */
struct {
- unsigned int _pid; /* sender's pid */
- unsigned int _uid; /* sender's uid */
+ compat_pid_t _pid; /* sender's pid */
+ __compat_uid32_t _uid; /* sender's uid */
compat_sigval_t _sigval;
} _rt;
/* SIGCHLD */
struct {
- unsigned int _pid; /* which child */
- unsigned int _uid; /* sender's uid */
+ compat_pid_t _pid; /* which child */
+ __compat_uid32_t _uid; /* sender's uid */
int _status; /* exit code */
compat_clock_t _utime;
compat_clock_t _stime;
@@ -175,7 +174,7 @@ typedef struct compat_siginfo {
/* SIGCHLD (x32 version) */
struct {
- unsigned int _pid; /* which child */
+ compat_pid_t _pid; /* which child */
unsigned int _uid; /* sender's uid */
int _status; /* exit code */
compat_s64 _utime;
@@ -184,19 +183,27 @@ typedef struct compat_siginfo {
/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
struct {
- unsigned int _addr; /* faulting insn/memory ref. */
+ compat_uptr_t _addr; /* faulting insn/memory ref. */
+#ifdef __ARCH_SI_TRAPNO
+ int _trapno; /* TRAP # which caused the signal */
+#endif
+ short _addr_lsb; /* LSB of the reported address */
+ struct {
+ compat_uptr_t _lower;
+ compat_uptr_t _upper;
+ } _addr_bnd;
} _sigfault;
/* SIGPOLL */
struct {
- int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
+ compat_long_t _band; /* POLL_IN, POLL_OUT, POLL_MSG */
int _fd;
} _sigpoll;
struct {
- unsigned int _call_addr; /* calling insn */
+ compat_uptr_t _call_addr; /* calling insn */
int _syscall; /* triggering system call number */
- unsigned int _arch; /* AUDIT_ARCH_* of syscall */
+ compat_uint_t _arch; /* AUDIT_ARCH_* of syscall */
} _sigsys;
} _sifields;
} compat_siginfo_t;
--
2.6.2
--
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[PATCH v2 00/20] Fix handling of compat_siginfo_t Amanieu d'Antras <amanieu@gmail.com> - 2015-11-05 02:00 +0100
[PATCH v2 14/20] powerpc: Use generic copy_siginfo_{to,from}_user32 Amanieu d'Antras <amanieu@gmail.com> - 2015-11-05 02:00 +0100
[PATCH v2 04/20] x86: Rewrite copy_siginfo_{to,from}_user32 Amanieu d'Antras <amanieu@gmail.com> - 2015-11-05 02:00 +0100
Re: [PATCH v2 04/20] x86: Rewrite copy_siginfo_{to,from}_user32 "H. Peter Anvin" <hpa@zytor.com> - 2015-11-05 03:40 +0100
[PATCH v2 05/20] mips: Clean up compat_siginfo_t Amanieu d'Antras <amanieu@gmail.com> - 2015-11-05 02:00 +0100
[PATCH v2 06/20] mips: Use generic copy_siginfo_{to,from}_user32 Amanieu d'Antras <amanieu@gmail.com> - 2015-11-05 02:00 +0100
[PATCH v2 19/20] signalfd: Fix some issues in signalfd_copyinfo Amanieu d'Antras <amanieu@gmail.com> - 2015-11-05 02:00 +0100
[PATCH v2 11/20] s390: Use generic compat_siginfo_t Amanieu d'Antras <amanieu@gmail.com> - 2015-11-05 02:00 +0100
[PATCH v2 10/20] parsic: Use generic copy_siginfo_{to,from}_user32 Amanieu d'Antras <amanieu@gmail.com> - 2015-11-05 02:00 +0100
[PATCH v2 17/20] sparc: Use generic compat_siginfo_t Amanieu d'Antras <amanieu@gmail.com> - 2015-11-05 02:00 +0100
[PATCH v2 18/20] sparc: Use generic copy_siginfo_{to,from}_user32 Amanieu d'Antras <amanieu@gmail.com> - 2015-11-05 02:00 +0100
[PATCH v2 03/20] x86: Update compat_siginfo_t to be closer to the generic version Amanieu d'Antras <amanieu@gmail.com> - 2015-11-05 02:00 +0100
[PATCH v2 20/20] signal: Remove unnecessary zero-initialization of siginfo_t Amanieu d'Antras <amanieu@gmail.com> - 2015-11-05 02:00 +0100
[PATCH v2 02/20] compat: Add generic copy_siginfo_{to,from}_user32 Amanieu d'Antras <amanieu@gmail.com> - 2015-11-05 02:00 +0100
[PATCH v2 16/20] tile: Use generic copy_siginfo_{to,from}_user32 Amanieu d'Antras <amanieu@gmail.com> - 2015-11-05 02:00 +0100
[PATCH v2 07/20] arm64: Use generic compat_siginfo_t Amanieu d'Antras <amanieu@gmail.com> - 2015-11-05 02:00 +0100
[PATCH v2 01/20] compat: Add generic compat_siginfo_t Amanieu d'Antras <amanieu@gmail.com> - 2015-11-05 02:00 +0100
Re: [PATCH v2 00/20] Fix handling of compat_siginfo_t Andy Lutomirski <luto@amacapital.net> - 2015-11-08 06:10 +0100
Re: [PATCH v2 00/20] Fix handling of compat_siginfo_t Oleg Nesterov <oleg@redhat.com> - 2015-11-09 15:20 +0100
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