compiler-rt: Fix stat struct's size for O32 ABI

stat struct size differs on glibc based on ABI choices e.g. 64bit off_t
and/or 64bit time_t will make this size different. Therefore separate
out the O32 case out, makes it more readable.

Upstream-Status: Pending
Signed-off-by: Khem Raj <[email protected]>

Author: kraj

compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.h

@@ -98,6 +98,18 @@ const unsigned struct_kernel_stat64_sz = 104;
 const unsigned struct_kernel_stat_sz = 144;
 const unsigned struct_kernel_stat64_sz = 104;
 #elif defined(__mips__)
+#if defined(__mips_o32) // O32 ABI
+#if _TIME_BITS == 64
+const unsigned struct_kernel_stat_sz = 112;
+const unsigned struct_kernel_stat64_sz = 112;
+#elif _FILE_OFFSET_BITS == 64
+const unsigned struct_kernel_stat_sz = 160;
+const unsigned struct_kernel_stat64_sz = 160;
+#else
+const unsigned struct_kernel_stat_sz = 144;
+const unsigned struct_kernel_stat64_sz = 160;
+#endif
+#else // __mips_o32
 const unsigned struct_kernel_stat_sz = SANITIZER_ANDROID
                                            ? FIRST_32_SECOND_64(104, 128)
 #      if defined(_ABIN32) && _MIPS_SIM == _ABIN32
@@ -106,6 +118,7 @@ const unsigned struct_kernel_stat_sz = SANITIZER_ANDROID
                                            : FIRST_32_SECOND_64(160, 216);
 #      endif
 const unsigned struct_kernel_stat64_sz = 104;
+#endif
 #elif defined(__s390__) && !defined(__s390x__)
 const unsigned struct_kernel_stat_sz = 64;
 const unsigned struct_kernel_stat64_sz = 104;