mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +00:00
4d2e9d9a1c
so we don't want it to show up in the stable 3.1 interface. While at it, add a comment about why LTOCodeGenerator manually creates the internalize pass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154807 91177308-0d34-0410-b5e6-96231b3b80d8
303 lines
8.4 KiB
C
303 lines
8.4 KiB
C
/*===-- llvm-c/lto.h - LTO Public C Interface ---------------------*- C -*-===*\
|
|
|* *|
|
|
|* The LLVM Compiler Infrastructure *|
|
|
|* *|
|
|
|* This file is distributed under the University of Illinois Open Source *|
|
|
|* License. See LICENSE.TXT for details. *|
|
|
|* *|
|
|
|*===----------------------------------------------------------------------===*|
|
|
|* *|
|
|
|* This header provides public interface to an abstract link time optimization*|
|
|
|* library. LLVM provides an implementation of this interface for use with *|
|
|
|* llvm bitcode files. *|
|
|
|* *|
|
|
\*===----------------------------------------------------------------------===*/
|
|
|
|
#ifndef LTO_H
|
|
#define LTO_H 1
|
|
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
#include <unistd.h>
|
|
|
|
/**
|
|
* @defgroup LLVMCLTO LTO
|
|
* @ingroup LLVMC
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
#define LTO_API_VERSION 4
|
|
|
|
typedef enum {
|
|
LTO_SYMBOL_ALIGNMENT_MASK = 0x0000001F, /* log2 of alignment */
|
|
LTO_SYMBOL_PERMISSIONS_MASK = 0x000000E0,
|
|
LTO_SYMBOL_PERMISSIONS_CODE = 0x000000A0,
|
|
LTO_SYMBOL_PERMISSIONS_DATA = 0x000000C0,
|
|
LTO_SYMBOL_PERMISSIONS_RODATA = 0x00000080,
|
|
LTO_SYMBOL_DEFINITION_MASK = 0x00000700,
|
|
LTO_SYMBOL_DEFINITION_REGULAR = 0x00000100,
|
|
LTO_SYMBOL_DEFINITION_TENTATIVE = 0x00000200,
|
|
LTO_SYMBOL_DEFINITION_WEAK = 0x00000300,
|
|
LTO_SYMBOL_DEFINITION_UNDEFINED = 0x00000400,
|
|
LTO_SYMBOL_DEFINITION_WEAKUNDEF = 0x00000500,
|
|
LTO_SYMBOL_SCOPE_MASK = 0x00003800,
|
|
LTO_SYMBOL_SCOPE_INTERNAL = 0x00000800,
|
|
LTO_SYMBOL_SCOPE_HIDDEN = 0x00001000,
|
|
LTO_SYMBOL_SCOPE_PROTECTED = 0x00002000,
|
|
LTO_SYMBOL_SCOPE_DEFAULT = 0x00001800,
|
|
LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN = 0x00002800
|
|
} lto_symbol_attributes;
|
|
|
|
typedef enum {
|
|
LTO_DEBUG_MODEL_NONE = 0,
|
|
LTO_DEBUG_MODEL_DWARF = 1
|
|
} lto_debug_model;
|
|
|
|
typedef enum {
|
|
LTO_CODEGEN_PIC_MODEL_STATIC = 0,
|
|
LTO_CODEGEN_PIC_MODEL_DYNAMIC = 1,
|
|
LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC = 2
|
|
} lto_codegen_model;
|
|
|
|
|
|
/** opaque reference to a loaded object module */
|
|
typedef struct LTOModule* lto_module_t;
|
|
|
|
/** opaque reference to a code generator */
|
|
typedef struct LTOCodeGenerator* lto_code_gen_t;
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* Returns a printable string.
|
|
*/
|
|
extern const char*
|
|
lto_get_version(void);
|
|
|
|
|
|
/**
|
|
* Returns the last error string or NULL if last operation was successful.
|
|
*/
|
|
extern const char*
|
|
lto_get_error_message(void);
|
|
|
|
/**
|
|
* Checks if a file is a loadable object file.
|
|
*/
|
|
extern bool
|
|
lto_module_is_object_file(const char* path);
|
|
|
|
|
|
/**
|
|
* Checks if a file is a loadable object compiled for requested target.
|
|
*/
|
|
extern bool
|
|
lto_module_is_object_file_for_target(const char* path,
|
|
const char* target_triple_prefix);
|
|
|
|
|
|
/**
|
|
* Checks if a buffer is a loadable object file.
|
|
*/
|
|
extern bool
|
|
lto_module_is_object_file_in_memory(const void* mem, size_t length);
|
|
|
|
|
|
/**
|
|
* Checks if a buffer is a loadable object compiled for requested target.
|
|
*/
|
|
extern bool
|
|
lto_module_is_object_file_in_memory_for_target(const void* mem, size_t length,
|
|
const char* target_triple_prefix);
|
|
|
|
|
|
/**
|
|
* Loads an object file from disk.
|
|
* Returns NULL on error (check lto_get_error_message() for details).
|
|
*/
|
|
extern lto_module_t
|
|
lto_module_create(const char* path);
|
|
|
|
|
|
/**
|
|
* Loads an object file from memory.
|
|
* Returns NULL on error (check lto_get_error_message() for details).
|
|
*/
|
|
extern lto_module_t
|
|
lto_module_create_from_memory(const void* mem, size_t length);
|
|
|
|
/**
|
|
* Loads an object file from disk. The seek point of fd is not preserved.
|
|
* Returns NULL on error (check lto_get_error_message() for details).
|
|
*/
|
|
extern lto_module_t
|
|
lto_module_create_from_fd(int fd, const char *path, size_t file_size);
|
|
|
|
/**
|
|
* Loads an object file from disk. The seek point of fd is not preserved.
|
|
* Returns NULL on error (check lto_get_error_message() for details).
|
|
*/
|
|
extern lto_module_t
|
|
lto_module_create_from_fd_at_offset(int fd, const char *path, size_t file_size,
|
|
size_t map_size, off_t offset);
|
|
|
|
|
|
/**
|
|
* Frees all memory internally allocated by the module.
|
|
* Upon return the lto_module_t is no longer valid.
|
|
*/
|
|
extern void
|
|
lto_module_dispose(lto_module_t mod);
|
|
|
|
|
|
/**
|
|
* Returns triple string which the object module was compiled under.
|
|
*/
|
|
extern const char*
|
|
lto_module_get_target_triple(lto_module_t mod);
|
|
|
|
/**
|
|
* Sets triple string with which the object will be codegened.
|
|
*/
|
|
extern void
|
|
lto_module_set_target_triple(lto_module_t mod, const char *triple);
|
|
|
|
|
|
/**
|
|
* Returns the number of symbols in the object module.
|
|
*/
|
|
extern unsigned int
|
|
lto_module_get_num_symbols(lto_module_t mod);
|
|
|
|
|
|
/**
|
|
* Returns the name of the ith symbol in the object module.
|
|
*/
|
|
extern const char*
|
|
lto_module_get_symbol_name(lto_module_t mod, unsigned int index);
|
|
|
|
|
|
/**
|
|
* Returns the attributes of the ith symbol in the object module.
|
|
*/
|
|
extern lto_symbol_attributes
|
|
lto_module_get_symbol_attribute(lto_module_t mod, unsigned int index);
|
|
|
|
|
|
/**
|
|
* Instantiates a code generator.
|
|
* Returns NULL on error (check lto_get_error_message() for details).
|
|
*/
|
|
extern lto_code_gen_t
|
|
lto_codegen_create(void);
|
|
|
|
|
|
/**
|
|
* Frees all code generator and all memory it internally allocated.
|
|
* Upon return the lto_code_gen_t is no longer valid.
|
|
*/
|
|
extern void
|
|
lto_codegen_dispose(lto_code_gen_t);
|
|
|
|
|
|
|
|
/**
|
|
* Add an object module to the set of modules for which code will be generated.
|
|
* Returns true on error (check lto_get_error_message() for details).
|
|
*/
|
|
extern bool
|
|
lto_codegen_add_module(lto_code_gen_t cg, lto_module_t mod);
|
|
|
|
|
|
|
|
/**
|
|
* Sets if debug info should be generated.
|
|
* Returns true on error (check lto_get_error_message() for details).
|
|
*/
|
|
extern bool
|
|
lto_codegen_set_debug_model(lto_code_gen_t cg, lto_debug_model);
|
|
|
|
|
|
/**
|
|
* Sets which PIC code model to generated.
|
|
* Returns true on error (check lto_get_error_message() for details).
|
|
*/
|
|
extern bool
|
|
lto_codegen_set_pic_model(lto_code_gen_t cg, lto_codegen_model);
|
|
|
|
|
|
/**
|
|
* Sets the cpu to generate code for.
|
|
*/
|
|
extern void
|
|
lto_codegen_set_cpu(lto_code_gen_t cg, const char *cpu);
|
|
|
|
|
|
/**
|
|
* Sets the location of the assembler tool to run. If not set, libLTO
|
|
* will use gcc to invoke the assembler.
|
|
*/
|
|
extern void
|
|
lto_codegen_set_assembler_path(lto_code_gen_t cg, const char* path);
|
|
|
|
/**
|
|
* Sets extra arguments that libLTO should pass to the assembler.
|
|
*/
|
|
extern void
|
|
lto_codegen_set_assembler_args(lto_code_gen_t cg, const char **args,
|
|
int nargs);
|
|
|
|
/**
|
|
* Adds to a list of all global symbols that must exist in the final
|
|
* generated code. If a function is not listed, it might be
|
|
* inlined into every usage and optimized away.
|
|
*/
|
|
extern void
|
|
lto_codegen_add_must_preserve_symbol(lto_code_gen_t cg, const char* symbol);
|
|
|
|
/**
|
|
* Writes a new object file at the specified path that contains the
|
|
* merged contents of all modules added so far.
|
|
* Returns true on error (check lto_get_error_message() for details).
|
|
*/
|
|
extern bool
|
|
lto_codegen_write_merged_modules(lto_code_gen_t cg, const char* path);
|
|
|
|
/**
|
|
* Generates code for all added modules into one native object file.
|
|
* On success returns a pointer to a generated mach-o/ELF buffer and
|
|
* length set to the buffer size. The buffer is owned by the
|
|
* lto_code_gen_t and will be freed when lto_codegen_dispose()
|
|
* is called, or lto_codegen_compile() is called again.
|
|
* On failure, returns NULL (check lto_get_error_message() for details).
|
|
*/
|
|
extern const void*
|
|
lto_codegen_compile(lto_code_gen_t cg, size_t* length);
|
|
|
|
/**
|
|
* Generates code for all added modules into one native object file.
|
|
* The name of the file is written to name. Returns true on error.
|
|
*/
|
|
extern bool
|
|
lto_codegen_compile_to_file(lto_code_gen_t cg, const char** name);
|
|
|
|
|
|
/**
|
|
* Sets options to help debug codegen bugs.
|
|
*/
|
|
extern void
|
|
lto_codegen_debug_options(lto_code_gen_t cg, const char *);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif
|