Merging r195442:

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r195442 | eugenis | 2013-11-22 15:01:43 +0400 (Fri, 22 Nov 2013) | 2 lines

[sanitizer] Fix kernel headers compatibility on powerpc64.

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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/branches/release_34@195464 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 45 insertions, 0 deletions

diff --git a/lib/sanitizer_common/sanitizer_platform_limits_linux.cc b/lib/sanitizer_common/sanitizer_platform_limits_linux.cc
index bb9721b68..4c9f12acd 100644
--- a/lib/sanitizer_common/sanitizer_platform_limits_linux.cc
+++ b/lib/sanitizer_common/sanitizer_platform_limits_linux.cc
@@ -25,8 +25,25 @@
 // For offsetof -> __builtin_offsetof definition.
 #include <stddef.h>
 
+// With old kernels (and even new kernels on powerpc) asm/stat.h uses types that
+// are not defined anywhere in userspace headers. Fake them. This seems to work
+// fine with newer headers, too.
+#include <asm/posix_types.h>
+#define ino_t __kernel_ino_t
+#define mode_t __kernel_mode_t
+#define nlink_t __kernel_nlink_t
+#define uid_t __kernel_uid_t
+#define gid_t __kernel_gid_t
+#define off_t __kernel_off_t
 // This header seems to contain the definitions of _kernel_ stat* structs.
 #include <asm/stat.h>
+#undef ino_t
+#undef mode_t
+#undef nlink_t
+#undef uid_t
+#undef gid_t
+#undef off_t
+
 #include <linux/aio_abi.h>
 
 #if SANITIZER_ANDROID
@@ -43,7 +60,10 @@ namespace __sanitizer {
   unsigned struct_statfs64_sz = sizeof(struct statfs64);
 }  // namespace __sanitizer
 
+#if !defined(__powerpc64__)
 COMPILER_CHECK(struct___old_kernel_stat_sz == sizeof(struct __old_kernel_stat));
+#endif
+
 COMPILER_CHECK(struct_kernel_stat_sz == sizeof(struct stat));
 
 #if defined(__i386__)
diff --git a/lib/sanitizer_common/sanitizer_platform_limits_posix.h b/lib/sanitizer_common/sanitizer_platform_limits_posix.h
index a3001f02a..9ce48ddc9 100644
--- a/lib/sanitizer_common/sanitizer_platform_limits_posix.h
+++ b/lib/sanitizer_common/sanitizer_platform_limits_posix.h
@@ -61,6 +61,14 @@ namespace __sanitizer {
   const unsigned struct___old_kernel_stat_sz = 32;
   const unsigned struct_kernel_stat_sz = 64;
   const unsigned struct_kernel_stat64_sz = 104;
+#elif defined(__powerpc__) && !defined(__powerpc64__)
+  const unsigned struct___old_kernel_stat_sz = 32;
+  const unsigned struct_kernel_stat_sz = 72;
+  const unsigned struct_kernel_stat64_sz = 104;
+#elif defined(__powerpc64__)
+  const unsigned struct___old_kernel_stat_sz = 0;
+  const unsigned struct_kernel_stat_sz = 144;
+  const unsigned struct_kernel_stat64_sz = 104;
 #endif
   const unsigned struct_io_event_sz = 32;
   struct __sanitizer_perf_event_attr {
@@ -126,17 +134,24 @@ namespace __sanitizer {
     int gid;
     int cuid;
     int cgid;
+#ifdef __powerpc64__
+    unsigned mode;
+    unsigned __seq;
+#else
     unsigned short mode;
     unsigned short __pad1;
     unsigned short __seq;
     unsigned short __pad2;
+#endif
     uptr __unused1;
     uptr __unused2;
   };
 
   struct __sanitizer_shmid_ds {
     __sanitizer_ipc_perm shm_perm;
+  #ifndef __powerpc__
     uptr shm_segsz;
+  #endif
     uptr shm_atime;
   #ifndef _LP64
     uptr __unused1;
@@ -149,6 +164,9 @@ namespace __sanitizer {
   #ifndef _LP64
     uptr __unused3;
   #endif
+  #ifdef __powerpc__
+    uptr shm_segsz;
+  #endif
     int shm_cpid;
     int shm_lpid;
     uptr shm_nattch;
@@ -271,8 +289,15 @@ namespace __sanitizer {
   typedef unsigned short __sanitizer___kernel_gid_t;
   typedef long __sanitizer___kernel_off_t;
 #endif
+
+#if defined(__powerpc64__)
+  typedef unsigned int __sanitizer___kernel_old_uid_t;
+  typedef unsigned int __sanitizer___kernel_old_gid_t;
+#else
   typedef unsigned short __sanitizer___kernel_old_uid_t;
   typedef unsigned short __sanitizer___kernel_old_gid_t;
+#endif
+
   typedef long long __sanitizer___kernel_loff_t;
   typedef struct {
     unsigned long fds_bits[1024 / (8 * sizeof(long))];