|* *|
\*===----------------------------------------------------------------------===*/
-#ifndef LTO_H
-#define LTO_H 1
+#ifndef LLVM_C_LTO_H
+#define LLVM_C_LTO_H
#include <stdbool.h>
#include <stddef.h>
+#include <unistd.h>
+
+/**
+ * @defgroup LLVMCLTO LTO
+ * @ingroup LLVMC
+ *
+ * @{
+ */
+
+#define LTO_API_VERSION 5
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_SCOPE_MASK = 0x00001800,
- LTO_SYMBOL_SCOPE_INTERNAL = 0x00000800,
- LTO_SYMBOL_SCOPE_HIDDEN = 0x00001000,
- LTO_SYMBOL_SCOPE_DEFAULT = 0x00001800
+ 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 {
/** 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();
+lto_get_version(void);
/**
- * Returns the last error string or NULL if last operation was sucessful.
+ * Returns the last error string or NULL if last operation was successful.
*/
extern const char*
-lto_get_error_message();
-
+lto_get_error_message(void);
/**
* Checks if a file is a loadable object file.
* 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);
+lto_module_is_object_file_for_target(const char* path,
+ const char* target_triple_prefix);
/**
* 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);
+lto_module_is_object_file_in_memory_for_target(const void* mem, size_t length,
+ const char* target_triple_prefix);
/**
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.
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.
* Returns NULL on error (check lto_get_error_message() for details).
*/
extern lto_code_gen_t
-lto_codegen_create();
+lto_codegen_create(void);
/**
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
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.
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 sucess returns a pointer to a generated mach-o/ELF buffer and
- * length set to the buffer size. Client owns the buffer and should
- * free() it when done.
+ * 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 void*
+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);
+
+struct NativeObjectFile {
+ const void *content;
+ size_t length;
+};
+
+/**
+ * Generates code for merged module into an array of native object files.
+ * On success returns a pointer to an array of NativeObjectFile. The
+ * count parameter returns the number of elements in the array. Each
+ * element is a pointer/length for a generated mach-o/ELF buffer. 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 struct NativeObjectFile*
+lto_codegen_compile_parallel(lto_code_gen_t cg, size_t *count);
+
+/**
+ * Sets options to help debug codegen bugs.
+ */
+extern void
+lto_codegen_debug_options(lto_code_gen_t cg, const char *);
+
+/**
+ * Initializes LLVM disassemblers.
+ * FIXME: This doesn't really belong here.
+ */
+extern void
+lto_initialize_disassembler(void);
#ifdef __cplusplus
}
#endif
+/**
+ * @}
+ */
#endif