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[PATCH] Reapply David's libsanitizer fix (PR sanitizer/63958)
- From: Jakub Jelinek <jakub at redhat dot com>
- To: gcc-patches at gcc dot gnu dot org
- Date: Mon, 9 Mar 2015 19:28:36 +0100
- Subject: [PATCH] Reapply David's libsanitizer fix (PR sanitizer/63958)
- Authentication-results: sourceware.org; auth=none
- Reply-to: Jakub Jelinek <jakub at redhat dot com>
Hi!
I've reapplied David's fix to trunk after Matthias tested it on sparc* and
I've regtested it on x86_64-linux and i686-linux.
2015-03-09 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/63958
Reapply:
2014-10-14 David S. Miller <davem@davemloft.net>
* sanitizer_common/sanitizer_platform_limits_linux.cc (time_t):
Define at __kernel_time_t, as needed for sparc.
(struct __old_kernel_stat): Don't check if __sparc__ is defined.
* libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
(__sanitizer): Define struct___old_kernel_stat_sz,
struct_kernel_stat_sz, and struct_kernel_stat64_sz for sparc.
(__sanitizer_ipc_perm): Adjust for sparc targets.
(__sanitizer_shmid_ds): Likewsie.
(__sanitizer_sigaction): Likewise.
(IOC_SIZE): Likewsie.
--- libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h (revision 216223)
+++ libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h (revision 216224)
@@ -72,6 +72,14 @@ namespace __sanitizer {
const unsigned struct_kernel_stat_sz = 144;
#endif
const unsigned struct_kernel_stat64_sz = 104;
+#elif defined(__sparc__) && defined(__arch64__)
+ const unsigned struct___old_kernel_stat_sz = 0;
+ const unsigned struct_kernel_stat_sz = 104;
+ const unsigned struct_kernel_stat64_sz = 144;
+#elif defined(__sparc__) && !defined(__arch64__)
+ const unsigned struct___old_kernel_stat_sz = 0;
+ const unsigned struct_kernel_stat_sz = 64;
+ const unsigned struct_kernel_stat64_sz = 104;
#endif
struct __sanitizer_perf_event_attr {
unsigned type;
@@ -94,7 +102,7 @@ namespace __sanitizer {
#if defined(__powerpc64__)
const unsigned struct___old_kernel_stat_sz = 0;
-#else
+#elif !defined(__sparc__)
const unsigned struct___old_kernel_stat_sz = 32;
#endif
@@ -173,6 +181,18 @@ namespace __sanitizer {
unsigned short __pad1;
unsigned long __unused1;
unsigned long __unused2;
+#elif defined(__sparc__)
+# if defined(__arch64__)
+ unsigned mode;
+ unsigned short __pad1;
+# else
+ unsigned short __pad1;
+ unsigned short mode;
+ unsigned short __pad2;
+# endif
+ unsigned short __seq;
+ unsigned long long __unused1;
+ unsigned long long __unused2;
#else
unsigned short mode;
unsigned short __pad1;
@@ -190,6 +210,26 @@ namespace __sanitizer {
struct __sanitizer_shmid_ds {
__sanitizer_ipc_perm shm_perm;
+ #if defined(__sparc__)
+ # if !defined(__arch64__)
+ u32 __pad1;
+ # endif
+ long shm_atime;
+ # if !defined(__arch64__)
+ u32 __pad2;
+ # endif
+ long shm_dtime;
+ # if !defined(__arch64__)
+ u32 __pad3;
+ # endif
+ long shm_ctime;
+ uptr shm_segsz;
+ int shm_cpid;
+ int shm_lpid;
+ unsigned long shm_nattch;
+ unsigned long __glibc_reserved1;
+ unsigned long __glibc_reserved2;
+ #else
#ifndef __powerpc__
uptr shm_segsz;
#elif !defined(__powerpc64__)
@@ -227,6 +267,7 @@ namespace __sanitizer {
uptr __unused4;
uptr __unused5;
#endif
+#endif
};
#elif SANITIZER_FREEBSD
struct __sanitizer_ipc_perm {
@@ -523,9 +564,13 @@ namespace __sanitizer {
#else
__sanitizer_sigset_t sa_mask;
#ifndef __mips__
+#if defined(__sparc__)
+ unsigned long sa_flags;
+#else
int sa_flags;
#endif
#endif
+#endif
#if SANITIZER_LINUX
void (*sa_restorer)();
#endif
@@ -745,7 +790,7 @@ struct __sanitizer_obstack {
#define IOC_NRBITS 8
#define IOC_TYPEBITS 8
-#if defined(__powerpc__) || defined(__powerpc64__) || defined(__mips__)
+#if defined(__powerpc__) || defined(__powerpc64__) || defined(__mips__) || defined(__sparc__)
#define IOC_SIZEBITS 13
#define IOC_DIRBITS 3
#define IOC_NONE 1U
@@ -775,7 +820,17 @@ struct __sanitizer_obstack {
#define IOC_DIR(nr) (((nr) >> IOC_DIRSHIFT) & IOC_DIRMASK)
#define IOC_TYPE(nr) (((nr) >> IOC_TYPESHIFT) & IOC_TYPEMASK)
#define IOC_NR(nr) (((nr) >> IOC_NRSHIFT) & IOC_NRMASK)
+
+#if defined(__sparc__)
+// In sparc the 14 bits SIZE field overlaps with the
+// least significant bit of DIR, so either IOC_READ or
+// IOC_WRITE shall be 1 in order to get a non-zero SIZE.
+# define IOC_SIZE(nr) \
+ ((((((nr) >> 29) & 0x7) & (4U|2U)) == 0)? \
+ 0 : (((nr) >> 16) & 0x3fff))
+#else
#define IOC_SIZE(nr) (((nr) >> IOC_SIZESHIFT) & IOC_SIZEMASK)
+#endif
extern unsigned struct_arpreq_sz;
extern unsigned struct_ifreq_sz;
--- libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cc (revision 216223)
+++ libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cc (revision 216224)
@@ -36,6 +36,7 @@
#define uid_t __kernel_uid_t
#define gid_t __kernel_gid_t
#define off_t __kernel_off_t
+#define time_t __kernel_time_t
// This header seems to contain the definitions of _kernel_ stat* structs.
#include <asm/stat.h>
#undef ino_t
@@ -60,7 +61,7 @@ namespace __sanitizer {
} // namespace __sanitizer
#if !defined(__powerpc64__) && !defined(__x86_64__) && !defined(__aarch64__)\
- && !defined(__mips__)
+ && !defined(__mips__) && !defined(__sparc__)
COMPILER_CHECK(struct___old_kernel_stat_sz == sizeof(struct __old_kernel_stat));
#endif
Jakub