* @{
*/
-#define LTO_API_VERSION 8
+#define LTO_API_VERSION 17
/**
* \since prior to LTO_API_VERSION=3
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_SCOPE_DEFAULT_CAN_BE_HIDDEN = 0x00002800,
+ LTO_SYMBOL_COMDAT = 0x00004000,
+ LTO_SYMBOL_ALIAS = 0x00008000
} lto_symbol_attributes;
/**
typedef enum {
LTO_CODEGEN_PIC_MODEL_STATIC = 0,
LTO_CODEGEN_PIC_MODEL_DYNAMIC = 1,
- LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC = 2
+ LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC = 2,
+ LTO_CODEGEN_PIC_MODEL_DEFAULT = 3
} lto_codegen_model;
-/**
- * \since LTO_API_VERSION=6
- */
-typedef enum {
- LTO_INTERNALIZE_FULL = 0,
- LTO_INTERNALIZE_NONE = 1,
- LTO_INTERNALIZE_HIDDEN = 2
-} lto_internalize_strategy;
-
/** opaque reference to a loaded object module */
-typedef struct LTOModule* lto_module_t;
+typedef struct LLVMOpaqueLTOModule *lto_module_t;
/** opaque reference to a code generator */
-typedef struct LTOCodeGenerator* lto_code_gen_t;
+typedef struct LLVMOpaqueLTOCodeGenerator *lto_code_gen_t;
#ifdef __cplusplus
extern "C" {
extern lto_module_t
lto_module_create_from_memory(const void* mem, size_t length);
+/**
+ * Loads an object file from memory with an extra path argument.
+ * Returns NULL on error (check lto_get_error_message() for details).
+ *
+ * \since LTO_API_VERSION=9
+ */
+extern lto_module_t
+lto_module_create_from_memory_with_path(const void* mem, size_t length,
+ const char *path);
+
+/**
+ * \brief Loads an object file in its own context.
+ *
+ * Loads an object file in its own LLVMContext. This function call is
+ * thread-safe. However, modules created this way should not be merged into an
+ * lto_code_gen_t using \a lto_codegen_add_module().
+ *
+ * Returns NULL on error (check lto_get_error_message() for details).
+ *
+ * \since LTO_API_VERSION=11
+ */
+extern lto_module_t
+lto_module_create_in_local_context(const void *mem, size_t length,
+ const char *path);
+
+/**
+ * \brief Loads an object file in the codegen context.
+ *
+ * Loads an object file into the same context as \c cg. The module is safe to
+ * add using \a lto_codegen_add_module().
+ *
+ * Returns NULL on error (check lto_get_error_message() for details).
+ *
+ * \since LTO_API_VERSION=11
+ */
+extern lto_module_t
+lto_module_create_in_codegen_context(const void *mem, size_t length,
+ const char *path, lto_code_gen_t cg);
+
/**
* 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).
/**
- * Returns the number of dependent libraries in the object module.
- *
- * \since LTO_API_VERSION=8
- */
-extern unsigned int
-lto_module_get_num_deplibs(lto_module_t mod);
-
-
-/**
- * Returns the ith dependent library in the module.
- *
- * \since LTO_API_VERSION=8
- */
-extern const char*
-lto_module_get_deplib(lto_module_t mod, unsigned int index);
-
-
-/**
- * Returns the number of linker options in the object module.
+ * Returns the module's linker options.
*
- * \since LTO_API_VERSION=8
- */
-extern unsigned int
-lto_module_get_num_linkeropts(lto_module_t mod);
-
-
-/**
- * Returns the ith linker option in the module.
+ * The linker options may consist of multiple flags. It is the linker's
+ * responsibility to split the flags using a platform-specific mechanism.
*
- * \since LTO_API_VERSION=8
+ * \since LTO_API_VERSION=16
*/
extern const char*
-lto_module_get_linkeropt(lto_module_t mod, unsigned int index);
+lto_module_get_linkeropts(lto_module_t mod);
/**
* \since LTO_API_VERSION=7
*/
typedef enum {
- LTO_DS_ERROR,
- LTO_DS_WARNING,
- LTO_DS_NOTE
+ LTO_DS_ERROR = 0,
+ LTO_DS_WARNING = 1,
+ LTO_DS_REMARK = 3, // Added in LTO_API_VERSION=10.
+ LTO_DS_NOTE = 2
} lto_codegen_diagnostic_severity_t;
/**
* Instantiates a code generator.
* Returns NULL on error (check lto_get_error_message() for details).
*
+ * All modules added using \a lto_codegen_add_module() must have been created
+ * in the same context as the codegen.
+ *
* \since prior to LTO_API_VERSION=3
*/
extern lto_code_gen_t
lto_codegen_create(void);
+/**
+ * \brief Instantiate a code generator in its own context.
+ *
+ * Instantiates a code generator in its own context. Modules added via \a
+ * lto_codegen_add_module() must have all been created in the same context,
+ * using \a lto_module_create_in_codegen_context().
+ *
+ * \since LTO_API_VERSION=11
+ */
+extern lto_code_gen_t
+lto_codegen_create_in_local_context(void);
+
/**
* Frees all code generator and all memory it internally allocated.
* Upon return the lto_code_gen_t is no longer valid.
* 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).
*
+ * \c cg and \c mod must both be in the same context. See \a
+ * lto_codegen_create_in_local_context() and \a
+ * lto_module_create_in_codegen_context().
+ *
* \since prior to LTO_API_VERSION=3
*/
extern lto_bool_t
lto_codegen_add_module(lto_code_gen_t cg, lto_module_t mod);
+/**
+ * Sets the object module for code generation. This will transfer the ownership
+ * of the module to the code generator.
+ *
+ * \c cg and \c mod must both be in the same context.
+ *
+ * \since LTO_API_VERSION=13
+ */
+extern void
+lto_codegen_set_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).
int nargs);
/**
- * Sets the strategy to use during internalize. Default strategy is
- * LTO_INTERNALIZE_FULL.
- *
- * \since LTO_API_VERSION=6
- */
-extern void
-lto_codegen_set_internalize_strategy(lto_code_gen_t cg,
- lto_internalize_strategy);
-
-/**
- * Tells LTO optimization passes that this symbol must be preserved
- * because it is referenced by native code or a command line option.
+ * Adds to a list of all global symbols that must exist in the final generated
+ * code. If a function is not listed there, it might be inlined into every usage
+ * and optimized away.
*
* \since prior to LTO_API_VERSION=3
*/
/**
* Generates code for all added modules into one native object file.
+ * This calls lto_codegen_optimize then lto_codegen_compile_optimized.
+ *
* 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()
/**
* Generates code for all added modules into one native object file.
+ * This calls lto_codegen_optimize then lto_codegen_compile_optimized (instead
+ * of returning a generated mach-o/ELF buffer, it writes to a file).
+ *
* The name of the file is written to name. Returns true on error.
*
* \since LTO_API_VERSION=5
extern lto_bool_t
lto_codegen_compile_to_file(lto_code_gen_t cg, const char** name);
+/**
+ * Runs optimization for the merged module. Returns true on error.
+ *
+ * \since LTO_API_VERSION=12
+ */
+extern lto_bool_t
+lto_codegen_optimize(lto_code_gen_t cg);
+
+/**
+ * Generates code for the optimized merged module into one native object file.
+ * It will not run any IR optimizations on the merged module.
+ *
+ * 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_optimized() is called again. On failure, returns NULL
+ * (check lto_get_error_message() for details).
+ *
+ * \since LTO_API_VERSION=12
+ */
+extern const void*
+lto_codegen_compile_optimized(lto_code_gen_t cg, size_t* length);
+
+/**
+ * Returns the runtime API version.
+ *
+ * \since LTO_API_VERSION=12
+ */
+extern unsigned int
+lto_api_version(void);
/**
* Sets options to help debug codegen bugs.
extern void
lto_initialize_disassembler(void);
+/**
+ * Sets if we should run internalize pass during optimization and code
+ * generation.
+ *
+ * \since LTO_API_VERSION=14
+ */
+extern void
+lto_codegen_set_should_internalize(lto_code_gen_t cg,
+ lto_bool_t ShouldInternalize);
+
+/**
+ * \brief Set whether to embed uselists in bitcode.
+ *
+ * Sets whether \a lto_codegen_write_merged_modules() should embed uselists in
+ * output bitcode. This should be turned on for all -save-temps output.
+ *
+ * \since LTO_API_VERSION=15
+ */
+extern void
+lto_codegen_set_should_embed_uselists(lto_code_gen_t cg,
+ lto_bool_t ShouldEmbedUselists);
+
#ifdef __cplusplus
}
#endif
projects / oota-llvm.git / blobdiff