From 21d972ad046f93669657eb7efb89ad2d0fe05ef8 Mon Sep 17 00:00:00 2001 From: Dale Johannesen Date: Wed, 30 Apr 2008 00:43:29 +0000 Subject: [PATCH] Add comments for previous patch as requested. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50463 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/DwarfWriter.cpp | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/CodeGen/DwarfWriter.cpp b/lib/CodeGen/DwarfWriter.cpp index 74df79002f4..9e806fadcde 100644 --- a/lib/CodeGen/DwarfWriter.cpp +++ b/lib/CodeGen/DwarfWriter.cpp @@ -2876,6 +2876,9 @@ private: RI->getInitialFrameState(Moves); EmitFrameMoves(NULL, 0, Moves, true); + // On Darwin the linker honors the alignment of eh_frame, which means it + // must be 8-byte on 64-bit targets to match what gcc does. Otherwise + // you get holes which confuse readers of eh_frame. Asm->EmitAlignment(TD->getPointerSize() == sizeof(int32_t) ? 2 : 3, 0, 0, false); EmitLabel("eh_frame_common_end", Index); @@ -2966,6 +2969,9 @@ private: // frame. EmitFrameMoves("eh_func_begin", EHFrameInfo.Number, EHFrameInfo.Moves, true); + // On Darwin the linker honors the alignment of eh_frame, which means it + // must be 8-byte on 64-bit targets to match what gcc does. Otherwise + // you get holes which confuse readers of eh_frame. Asm->EmitAlignment(TD->getPointerSize() == sizeof(int32_t) ? 2 : 3, 0, 0, false); EmitLabel("eh_frame_end", EHFrameInfo.Number);