/* plugin-api.h -- External linker plugin API. */
-/* Copyright (C) 2009-2020 Free Software Foundation, Inc.
+/* Copyright (C) 2009-2024 Free Software Foundation, Inc.
Written by Cary Coutant <ccoutant@google.com>.
This file is part of binutils.
#error cannot find uint64_t type
#endif
+/* Detect endianess based on gcc's (>=4.6.0) __BYTE_ORDER__ macro. */
+#if defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && \
+ defined(__ORDER_LITTLE_ENDIAN__) && defined(__ORDER_PDP_ENDIAN__)
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define PLUGIN_LITTLE_ENDIAN 1
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+#define PLUGIN_BIG_ENDIAN 1
+#elif __BYTE_ORDER__ == __ORDER_PDP_ENDIAN__
+#define PLUGIN_PDP_ENDIAN 1
+#endif
+
+#else
+/* Include header files to define endian macros. */
+#if defined(__GLIBC__) || defined(__GNU_LIBRARY__) || defined(__ANDROID__)
+#include <endian.h>
+
+#elif defined(__SVR4) && defined(__sun)
+#include <sys/byteorder.h>
+
+#elif defined(__FreeBSD__) || defined(__NetBSD__) || \
+ defined(__DragonFly__) || defined(__minix)
+#include <sys/endian.h>
+
+#elif defined(__OpenBSD__)
+#include <machine/endian.h>
+#endif
+
+/* Detect endianess based on __BYTE_ORDER. */
+#ifdef __BYTE_ORDER
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define PLUGIN_LITTLE_ENDIAN 1
+#elif __BYTE_ORDER == __BIG_ENDIAN
+#define PLUGIN_BIG_ENDIAN 1
+#endif
+
+/* Detect endianess based on _BYTE_ORDER. */
+#elif defined _BYTE_ORDER
+#if _BYTE_ORDER == _LITTLE_ENDIAN
+#define PLUGIN_LITTLE_ENDIAN 1
+#elif _BYTE_ORDER == _BIG_ENDIAN
+#define PLUGIN_BIG_ENDIAN 1
+#endif
+
+/* Detect based on _WIN32. */
+#elif defined _WIN32
+#define PLUGIN_LITTLE_ENDIAN 1
+
+/* Detect based on __BIG_ENDIAN__ and __LITTLE_ENDIAN__ */
+#elif defined __LITTLE_ENDIAN__ || defined _LITTLE_ENDIAN
+#define PLUGIN_LITTLE_ENDIAN 1
+#elif defined __BIG_ENDIAN__ || defined _BIG_ENDIAN
+#define PLUGIN_BIG_ENDIAN 1
+#endif
+#endif
+
#ifdef __cplusplus
extern "C"
{
char *version;
/* This is for compatibility with older ABIs. The older ABI defined
only 'def' field. */
-#ifdef __BIG_ENDIAN__
+#if PLUGIN_BIG_ENDIAN == 1
char unused;
char section_kind;
char symbol_type;
char def;
-#else
+#elif PLUGIN_LITTLE_ENDIAN == 1
char def;
char symbol_type;
char section_kind;
char unused;
+#elif PLUGIN_PDP_ENDIAN == 1
+ char symbol_type;
+ char def;
+ char unused;
+ char section_kind;
+#else
+#error "Could not detect architecture endianess"
#endif
int visibility;
uint64_t size;
{
LDST_UNKNOWN,
LDST_FUNCTION,
- LDST_VARIABLE,
+ LDST_VARIABLE
};
enum ld_plugin_symbol_section_kind
(*ld_plugin_claim_file_handler) (
const struct ld_plugin_input_file *file, int *claimed);
+/* The plugin library's "claim file" handler, version 2. */
+
+typedef
+enum ld_plugin_status
+(*ld_plugin_claim_file_handler_v2) (
+ const struct ld_plugin_input_file *file, int *claimed, int known_used);
+
/* The plugin library's "all symbols read" handler. */
typedef
enum ld_plugin_status
(*ld_plugin_register_claim_file) (ld_plugin_claim_file_handler handler);
+/* The linker's interface for registering the "claim file" handler,
+ version 2. */
+
+typedef
+enum ld_plugin_status
+(*ld_plugin_register_claim_file_v2) (ld_plugin_claim_file_handler_v2 handler);
+
/* The linker's interface for registering the "all symbols read" handler. */
typedef
LDPL_FATAL
};
+/* Contract between a plug-in and a linker. */
+
+enum linker_api_version
+{
+ /* The linker/plugin do not implement any of the API levels below, the API
+ is determined solely via the transfer vector. */
+ LAPI_V0,
+
+ /* API level v1. The linker provides get_symbols_v3, add_symbols_v2,
+ the plugin will use that and not any lower versions.
+ claim_file is thread-safe on the plugin side and
+ add_symbols on the linker side. */
+ LAPI_V1
+};
+
+/* The linker's interface for API version negotiation. A plug-in calls
+ the function (with its IDENTIFIER and VERSION), plus minimal and maximal
+ version of linker_api_version is provided. Linker then returns selected
+ API version and provides its IDENTIFIER and VERSION. The returned value
+ by linker must be in range [MINIMAL_API_SUPPORTED, MAXIMAL_API_SUPPORTED].
+ Identifier pointers remain valid as long as the plugin is loaded. */
+
+typedef
+int
+(*ld_plugin_get_api_version) (const char *plugin_identifier,
+ const char *plugin_version,
+ int minimal_api_supported,
+ int maximal_api_supported,
+ const char **linker_identifier,
+ const char **linker_version);
+
/* Values for the tv_tag field of the transfer vector. */
enum ld_plugin_tag
{
- LDPT_NULL = 0,
- LDPT_API_VERSION = 1,
- LDPT_GOLD_VERSION = 2,
- LDPT_LINKER_OUTPUT = 3,
- LDPT_OPTION = 4,
- LDPT_REGISTER_CLAIM_FILE_HOOK = 5,
- LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK = 6,
- LDPT_REGISTER_CLEANUP_HOOK = 7,
- LDPT_ADD_SYMBOLS = 8,
- LDPT_GET_SYMBOLS = 9,
- LDPT_ADD_INPUT_FILE = 10,
- LDPT_MESSAGE = 11,
- LDPT_GET_INPUT_FILE = 12,
- LDPT_RELEASE_INPUT_FILE = 13,
- LDPT_ADD_INPUT_LIBRARY = 14,
- LDPT_OUTPUT_NAME = 15,
- LDPT_SET_EXTRA_LIBRARY_PATH = 16,
- LDPT_GNU_LD_VERSION = 17,
- LDPT_GET_VIEW = 18,
- LDPT_GET_INPUT_SECTION_COUNT = 19,
- LDPT_GET_INPUT_SECTION_TYPE = 20,
- LDPT_GET_INPUT_SECTION_NAME = 21,
- LDPT_GET_INPUT_SECTION_CONTENTS = 22,
- LDPT_UPDATE_SECTION_ORDER = 23,
- LDPT_ALLOW_SECTION_ORDERING = 24,
- LDPT_GET_SYMBOLS_V2 = 25,
- LDPT_ALLOW_UNIQUE_SEGMENT_FOR_SECTIONS = 26,
- LDPT_UNIQUE_SEGMENT_FOR_SECTIONS = 27,
- LDPT_GET_SYMBOLS_V3 = 28,
- LDPT_GET_INPUT_SECTION_ALIGNMENT = 29,
- LDPT_GET_INPUT_SECTION_SIZE = 30,
- LDPT_REGISTER_NEW_INPUT_HOOK = 31,
- LDPT_GET_WRAP_SYMBOLS = 32,
- LDPT_ADD_SYMBOLS_V2 = 33
+ LDPT_NULL,
+ LDPT_API_VERSION,
+ LDPT_GOLD_VERSION,
+ LDPT_LINKER_OUTPUT,
+ LDPT_OPTION,
+ LDPT_REGISTER_CLAIM_FILE_HOOK,
+ LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK,
+ LDPT_REGISTER_CLEANUP_HOOK,
+ LDPT_ADD_SYMBOLS,
+ LDPT_GET_SYMBOLS,
+ LDPT_ADD_INPUT_FILE,
+ LDPT_MESSAGE,
+ LDPT_GET_INPUT_FILE,
+ LDPT_RELEASE_INPUT_FILE,
+ LDPT_ADD_INPUT_LIBRARY,
+ LDPT_OUTPUT_NAME,
+ LDPT_SET_EXTRA_LIBRARY_PATH,
+ LDPT_GNU_LD_VERSION,
+ LDPT_GET_VIEW,
+ LDPT_GET_INPUT_SECTION_COUNT,
+ LDPT_GET_INPUT_SECTION_TYPE,
+ LDPT_GET_INPUT_SECTION_NAME,
+ LDPT_GET_INPUT_SECTION_CONTENTS,
+ LDPT_UPDATE_SECTION_ORDER,
+ LDPT_ALLOW_SECTION_ORDERING,
+ LDPT_GET_SYMBOLS_V2,
+ LDPT_ALLOW_UNIQUE_SEGMENT_FOR_SECTIONS,
+ LDPT_UNIQUE_SEGMENT_FOR_SECTIONS,
+ LDPT_GET_SYMBOLS_V3,
+ LDPT_GET_INPUT_SECTION_ALIGNMENT,
+ LDPT_GET_INPUT_SECTION_SIZE,
+ LDPT_REGISTER_NEW_INPUT_HOOK,
+ LDPT_GET_WRAP_SYMBOLS,
+ LDPT_ADD_SYMBOLS_V2,
+ LDPT_GET_API_VERSION,
+ LDPT_REGISTER_CLAIM_FILE_HOOK_V2
};
/* The plugin transfer vector. */
int tv_val;
const char *tv_string;
ld_plugin_register_claim_file tv_register_claim_file;
+ ld_plugin_register_claim_file_v2 tv_register_claim_file_v2;
ld_plugin_register_all_symbols_read tv_register_all_symbols_read;
ld_plugin_register_cleanup tv_register_cleanup;
ld_plugin_add_symbols tv_add_symbols;
ld_plugin_get_input_section_size tv_get_input_section_size;
ld_plugin_register_new_input tv_register_new_input;
ld_plugin_get_wrap_symbols tv_get_wrap_symbols;
+ ld_plugin_get_api_version tv_get_api_version;
} tv_u;
};
projects / thirdparty / binutils-gdb.git / blobdiff