llvm-6502/tools/lto/lto.exports
Rafael Espindola 7e667c56cf Use LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN instead of the "dso list".
There are two ways one could implement hiding of linkonce_odr symbols in LTO:
* LLVM tells the linker which symbols can be hidden if not used from native
  files.
* The linker tells LLVM which symbols are not used from other object files,
  but will be put in the dso symbol table if present.

GOLD's API is the second option. It was implemented almost 1:1 in llvm by
passing the list down to internalize.

LLVM already had partial support for the first option. It is also very similar
to how ld64 handles hiding these symbols when *not* doing LTO.

This patch then
* removes the APIs for the DSO list.
* marks LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN all linkonce_odr unnamed_addr
  global values and other linkonce_odr whose address is not used.
* makes the gold plugin responsible for handling the API mismatch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193800 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-31 20:51:58 +00:00

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lto_get_error_message
lto_get_version
lto_initialize_disassembler
lto_module_create
lto_module_create_from_fd
lto_module_create_from_fd_at_offset
lto_module_create_from_memory
lto_module_get_num_symbols
lto_module_get_symbol_attribute
lto_module_get_symbol_name
lto_module_get_target_triple
lto_module_set_target_triple
lto_module_is_object_file
lto_module_is_object_file_for_target
lto_module_is_object_file_in_memory
lto_module_is_object_file_in_memory_for_target
lto_module_dispose
lto_codegen_add_module
lto_codegen_add_must_preserve_symbol
lto_codegen_compile
lto_codegen_create
lto_codegen_dispose
lto_codegen_set_debug_model
lto_codegen_set_pic_model
lto_codegen_write_merged_modules
lto_codegen_debug_options
lto_codegen_set_assembler_args
lto_codegen_set_assembler_path
lto_codegen_set_cpu
lto_codegen_compile_to_file
LLVMCreateDisasm
LLVMCreateDisasmCPU
LLVMDisasmDispose
LLVMDisasmInstruction
LLVMSetDisasmOptions