[libunwind][AIX] implementation of the unwinder for AIX

Summary:
This is an add-on patch to address comments.
- Replace #elif in file <assembly.h> with #else as suggested;
- Reversed the indentation changes in the main patch.

Differential Revision: https://reviews.llvm.org/D100132

diff --git a/libunwind/src/assembly.h b/libunwind/src/assembly.h
index 9554ca8..fb07d04 100644 (file)
--- a/libunwind/src/assembly.h
+++ b/libunwind/src/assembly.h
@@ -209,7 +209,7 @@
 #if defined(__powerpc64__)
 #define VBYTE_LEN 8
 #define CSECT_ALIGN 3
-#elif defined(__ppc__)
+#else
 #define VBYTE_LEN 4
 #define CSECT_ALIGN 2
 #endif

diff --git a/libunwind/src/config.h b/libunwind/src/config.h
index 7fd6b73..e751860 100644 (file)
--- a/libunwind/src/config.h
+++ b/libunwind/src/config.h
@@ -60,13 +60,13 @@
   #define _LIBUNWIND_EXPORT
   #define _LIBUNWIND_HIDDEN
 #else
-#if !defined(__ELF__) && !defined(__MACH__) && !defined(_AIX)
-#define _LIBUNWIND_EXPORT __declspec(dllexport)
-#define _LIBUNWIND_HIDDEN
-#else
-#define _LIBUNWIND_EXPORT __attribute__((visibility("default")))
-#define _LIBUNWIND_HIDDEN __attribute__((visibility("hidden")))
-#endif
+  #if !defined(__ELF__) && !defined(__MACH__) && !defined(_AIX)
+    #define _LIBUNWIND_EXPORT __declspec(dllexport)
+    #define _LIBUNWIND_HIDDEN
+  #else
+    #define _LIBUNWIND_EXPORT __attribute__((visibility("default")))
+    #define _LIBUNWIND_HIDDEN __attribute__((visibility("hidden")))
+  #endif
 #endif
 
 #define STR(a) #a