From 9050bd1f687d04742ca54bb2541197c0c905934f Mon Sep 17 00:00:00 2001 From: Anton Korobeynikov Date: Mon, 3 Dec 2007 05:30:41 +0000 Subject: Provide hook for _alloca to make JITing on Cygwin slightly happier :) llvm-svn: 44528 --- llvm/lib/System/DynamicLibrary.cpp | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'llvm/lib/System/DynamicLibrary.cpp') diff --git a/llvm/lib/System/DynamicLibrary.cpp b/llvm/lib/System/DynamicLibrary.cpp index b06f6b08be9..0a8ac59dc27 100644 --- a/llvm/lib/System/DynamicLibrary.cpp +++ b/llvm/lib/System/DynamicLibrary.cpp @@ -138,14 +138,15 @@ void* DynamicLibrary::SearchForAddressOfSymbol(const char* symbolName) { return ptr; } +#define EXPLICIT_SYMBOL(SYM) \ + extern void *SYM; if (!strcmp(symbolName, #SYM)) return &SYM + // If this is darwin, it has some funky issues, try to solve them here. Some // important symbols are marked 'private external' which doesn't allow // SearchForAddressOfSymbol to find them. As such, we special case them here, // there is only a small handful of them. #ifdef __APPLE__ -#define EXPLICIT_SYMBOL(SYM) \ - extern void *SYM; if (!strcmp(symbolName, #SYM)) return &SYM { EXPLICIT_SYMBOL(__ashldi3); EXPLICIT_SYMBOL(__ashrdi3); @@ -163,9 +164,16 @@ void* DynamicLibrary::SearchForAddressOfSymbol(const char* symbolName) { EXPLICIT_SYMBOL(__udivdi3); EXPLICIT_SYMBOL(__umoddi3); } -#undef EXPLICIT_SYMBOL #endif +#ifdef __CYGWIN__ + { + EXPLICIT_SYMBOL(_alloca); + } +#endif + +#undef EXPLICIT_SYMBOL + // This macro returns the address of a well-known, explicit symbol #define EXPLICIT_SYMBOL(SYM) \ if (!strcmp(symbolName, #SYM)) return &SYM -- cgit v1.2.3