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| author | Peter Collingbourne <peter@pcc.me.uk> | 2015-07-04 03:42:35 +0000 |
|---|---|---|
| committer | Peter Collingbourne <peter@pcc.me.uk> | 2015-07-04 03:42:35 +0000 |
| commit | 17eff10f6806bbf676fc0c4731c9940c61d90cc0 (patch) | |
| tree | 167198e8152055f99e972ae8400c34ad8facf19e | |
| parent | 0569ecfa9b643a8f0a14d83647927b546eba9abd (diff) | |
| download | bcm5719-llvm-17eff10f6806bbf676fc0c4731c9940c61d90cc0.tar.gz bcm5719-llvm-17eff10f6806bbf676fc0c4731c9940c61d90cc0.zip | |
LTO: expose LTO_SYMBOL_ALIAS, which indicates that the symbol is an alias.
This is needed for COFF linkers to distinguish between weak external aliases
and regular symbols with LLVM weak linkage, which are represented as strong
symbols in COFF.
llvm-svn: 241389
| -rw-r--r-- | llvm/include/llvm-c/lto.h | 5 | ||||
| -rw-r--r-- | llvm/lib/LTO/LTOModule.cpp | 3 |
2 files changed, 6 insertions, 2 deletions
diff --git a/llvm/include/llvm-c/lto.h b/llvm/include/llvm-c/lto.h index 42c05a2fc59..cb3a6916045 100644 --- a/llvm/include/llvm-c/lto.h +++ b/llvm/include/llvm-c/lto.h @@ -40,7 +40,7 @@ typedef bool lto_bool_t; * @{ */ -#define LTO_API_VERSION 16 +#define LTO_API_VERSION 17 /** * \since prior to LTO_API_VERSION=3 @@ -63,7 +63,8 @@ typedef enum { LTO_SYMBOL_SCOPE_PROTECTED = 0x00002000, LTO_SYMBOL_SCOPE_DEFAULT = 0x00001800, LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN = 0x00002800, - LTO_SYMBOL_COMDAT = 0x00004000 + LTO_SYMBOL_COMDAT = 0x00004000, + LTO_SYMBOL_ALIAS = 0x00008000 } lto_symbol_attributes; /** diff --git a/llvm/lib/LTO/LTOModule.cpp b/llvm/lib/LTO/LTOModule.cpp index 6131c318024..53ed4175f8e 100644 --- a/llvm/lib/LTO/LTOModule.cpp +++ b/llvm/lib/LTO/LTOModule.cpp @@ -473,6 +473,9 @@ void LTOModule::addDefinedSymbol(const char *Name, const GlobalValue *def, if (def->hasComdat()) attr |= LTO_SYMBOL_COMDAT; + if (isa<GlobalAlias>(def)) + attr |= LTO_SYMBOL_ALIAS; + auto Iter = _defines.insert(Name).first; // fill information structure |
