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* [gcc(refs/users/marxin/heads/lto-plugin-get_symbols_v3-v4)] lto-plugin: implement LDPT_GET_API_VERSION
@ 2022-06-16 12:23 Martin Liska
0 siblings, 0 replies; 11+ messages in thread
From: Martin Liska @ 2022-06-16 12:23 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:3e01823f22282c7a46771c82f9622f7ff2929b18
commit 3e01823f22282c7a46771c82f9622f7ff2929b18
Author: Martin Liska <mliska@suse.cz>
Date: Mon May 16 14:01:52 2022 +0200
lto-plugin: implement LDPT_GET_API_VERSION
include/ChangeLog:
* plugin-api.h (enum linker_api_version): New enum.
(ld_plugin_get_api_version): New.
(enum ld_plugin_tag): Add LDPT_GET_API_VERSION.
(struct ld_plugin_tv): Add tv_get_api_version.
lto-plugin/ChangeLog:
* lto-plugin.c (negotiate_api_version): New.
(onload): Negotiate API version.
Diff:
---
include/plugin-api.h | 31 +++++++++++++++++++++++++++++++
lto-plugin/lto-plugin.c | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 69 insertions(+)
diff --git a/include/plugin-api.h b/include/plugin-api.h
index 8aebe2ff267..cc3a43b44a6 100644
--- a/include/plugin-api.h
+++ b/include/plugin-api.h
@@ -483,6 +483,35 @@ enum ld_plugin_level
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_UNSPECIFIED = 0,
+
+ /* 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 = 1
+};
+
+/* 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.
+ Identifier pointers remain valid as long as the plugin is loaded. */
+
+typedef
+enum linker_api_version
+(*ld_plugin_get_api_version) (const char *plugin_identifier, unsigned plugin_version,
+ enum linker_api_version minimal_api_supported,
+ enum linker_api_version maximal_api_supported,
+ const char **linker_identifier,
+ unsigned *linker_version);
+
/* Values for the tv_tag field of the transfer vector. */
enum ld_plugin_tag
@@ -521,6 +550,7 @@ enum ld_plugin_tag
LDPT_REGISTER_NEW_INPUT_HOOK,
LDPT_GET_WRAP_SYMBOLS,
LDPT_ADD_SYMBOLS_V2,
+ LDPT_GET_API_VERSION,
};
/* The plugin transfer vector. */
@@ -556,6 +586,7 @@ struct ld_plugin_tv
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;
};
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index 13118c4983c..208b26d5c4b 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -70,6 +70,7 @@ along with this program; see the file COPYING3. If not see
#include "../gcc/lto/common.h"
#include "simple-object.h"
#include "plugin-api.h"
+#include "ansidecl.h"
/* We need to use I64 instead of ll width-specifier on native Windows.
The reason for this is that older MS-runtimes don't support the ll. */
@@ -170,6 +171,10 @@ static ld_plugin_add_input_file add_input_file;
static ld_plugin_add_input_library add_input_library;
static ld_plugin_message message;
static ld_plugin_add_symbols add_symbols, add_symbols_v2;
+static ld_plugin_get_api_version get_api_version;
+
+/* By default, use version LAPI_UNSPECIFIED if there is not negotiation. */
+static enum linker_api_version api_version = LAPI_UNSPECIFIED;
static struct plugin_file_info *claimed_files = NULL;
static unsigned int num_claimed_files = 0;
@@ -1415,6 +1420,33 @@ process_option (const char *option)
verbose = verbose || debug;
}
+/* Negotiate linker API version. */
+
+static void
+negotiate_api_version (void)
+{
+ const char *linker_identifier;
+ unsigned linker_version;
+
+ api_version = get_api_version ("GCC", GCC_VERSION, LAPI_UNSPECIFIED,
+ LAPI_V1, &linker_identifier, &linker_version);
+
+ switch (api_version)
+ {
+ case LAPI_UNSPECIFIED:
+ break;
+ case LAPI_V1:
+ check (get_symbols_v3, LDPL_FATAL,
+ "get_symbols_v3 required for API version 1");
+ check (add_symbols_v2, LDPL_FATAL,
+ "add_symbols_v2 required for API version 1");
+ break;
+ default:
+ fprintf (stderr, "unsupported API version\n");
+ abort ();
+ }
+}
+
/* Called by a linker after loading the plugin. TV is the transfer vector. */
enum ld_plugin_status
@@ -1481,12 +1513,18 @@ onload (struct ld_plugin_tv *tv)
/* We only use this to make user-friendly temp file names. */
link_output_name = p->tv_u.tv_string;
break;
+ case LDPT_GET_API_VERSION:
+ get_api_version = p->tv_u.tv_get_api_version;
+ break;
default:
break;
}
p++;
}
+ if (get_api_version)
+ negotiate_api_version ();
+
check (register_claim_file, LDPL_FATAL, "register_claim_file not found");
check (add_symbols, LDPL_FATAL, "add_symbols not found");
status = register_claim_file (claim_file_handler);
^ permalink raw reply [flat|nested] 11+ messages in thread
* [gcc(refs/users/marxin/heads/lto-plugin-get_symbols_v3-v4)] lto-plugin: implement LDPT_GET_API_VERSION
@ 2022-07-08 8:01 Martin Liska
0 siblings, 0 replies; 11+ messages in thread
From: Martin Liska @ 2022-07-08 8:01 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:c105ee05439929f1c1fd22d15f56cf398b5a8a0d
commit c105ee05439929f1c1fd22d15f56cf398b5a8a0d
Author: Martin Liska <mliska@suse.cz>
Date: Mon May 16 14:01:52 2022 +0200
lto-plugin: implement LDPT_GET_API_VERSION
include/ChangeLog:
* plugin-api.h (enum linker_api_version): New enum.
(ld_plugin_get_api_version): New.
(enum ld_plugin_tag): Add LDPT_GET_API_VERSION.
(struct ld_plugin_tv): Add tv_get_api_version.
lto-plugin/ChangeLog:
* lto-plugin.c (negotiate_api_version): New.
(onload): Negotiate API version.
* Makefile.am: Add -DBASE_VERSION.
* Makefile.in: Regenerate.
Diff:
---
include/plugin-api.h | 32 ++++++++++++++++++++++++++++++++
lto-plugin/Makefile.am | 2 +-
lto-plugin/Makefile.in | 2 +-
lto-plugin/lto-plugin.c | 42 ++++++++++++++++++++++++++++++++++++++++++
4 files changed, 76 insertions(+), 2 deletions(-)
diff --git a/include/plugin-api.h b/include/plugin-api.h
index 8aebe2ff267..1deda680081 100644
--- a/include/plugin-api.h
+++ b/include/plugin-api.h
@@ -483,6 +483,36 @@ enum ld_plugin_level
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_UNSPECIFIED = 0,
+
+ /* 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 = 1
+};
+
+/* 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.
+ Identifier pointers remain valid as long as the plugin is loaded. */
+
+typedef
+enum linker_api_version
+(*ld_plugin_get_api_version) (const char *plugin_identifier,
+ const char *plugin_version,
+ enum linker_api_version minimal_api_supported,
+ enum linker_api_version 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
@@ -521,6 +551,7 @@ enum ld_plugin_tag
LDPT_REGISTER_NEW_INPUT_HOOK,
LDPT_GET_WRAP_SYMBOLS,
LDPT_ADD_SYMBOLS_V2,
+ LDPT_GET_API_VERSION,
};
/* The plugin transfer vector. */
@@ -556,6 +587,7 @@ struct ld_plugin_tv
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;
};
diff --git a/lto-plugin/Makefile.am b/lto-plugin/Makefile.am
index 81362eafc36..482946e4dd5 100644
--- a/lto-plugin/Makefile.am
+++ b/lto-plugin/Makefile.am
@@ -8,7 +8,7 @@ target_noncanonical := @target_noncanonical@
libexecsubdir := $(libexecdir)/gcc/$(real_target_noncanonical)/$(gcc_version)$(accel_dir_suffix)
AM_CPPFLAGS = -I$(top_srcdir)/../include $(DEFS)
-AM_CFLAGS = @ac_lto_plugin_warn_cflags@ $(CET_HOST_FLAGS)
+AM_CFLAGS = @ac_lto_plugin_warn_cflags@ $(CET_HOST_FLAGS) -DBASE_VERSION='"$(gcc_version)"'
# The plug-in depends on pthreads.
AM_LDFLAGS = -pthread @ac_lto_plugin_ldflags@
AM_LIBTOOLFLAGS = --tag=disable-static
diff --git a/lto-plugin/Makefile.in b/lto-plugin/Makefile.in
index 2033dd9b7c2..9453bc7d607 100644
--- a/lto-plugin/Makefile.in
+++ b/lto-plugin/Makefile.in
@@ -343,7 +343,7 @@ AUTOMAKE_OPTIONS = no-dependencies
gcc_version := $(shell @get_gcc_base_ver@ $(top_srcdir)/../gcc/BASE-VER)
libexecsubdir := $(libexecdir)/gcc/$(real_target_noncanonical)/$(gcc_version)$(accel_dir_suffix)
AM_CPPFLAGS = -I$(top_srcdir)/../include $(DEFS)
-AM_CFLAGS = @ac_lto_plugin_warn_cflags@ $(CET_HOST_FLAGS)
+AM_CFLAGS = @ac_lto_plugin_warn_cflags@ $(CET_HOST_FLAGS) -DBASE_VERSION='"$(gcc_version)"'
# The plug-in depends on pthreads.
AM_LDFLAGS = -pthread @ac_lto_plugin_ldflags@
AM_LIBTOOLFLAGS = --tag=disable-static
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index 7927dca60a4..aad17b403e1 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -180,6 +180,10 @@ static ld_plugin_add_input_file add_input_file;
static ld_plugin_add_input_library add_input_library;
static ld_plugin_message message;
static ld_plugin_add_symbols add_symbols, add_symbols_v2;
+static ld_plugin_get_api_version get_api_version;
+
+/* By default, use version LAPI_UNSPECIFIED if there is not negotiation. */
+static enum linker_api_version api_version = LAPI_UNSPECIFIED;
static struct plugin_file_info *claimed_files = NULL;
static unsigned int num_claimed_files = 0;
@@ -1428,6 +1432,38 @@ process_option (const char *option)
verbose = verbose || debug;
}
+/* Negotiate linker API version. */
+
+static void
+negotiate_api_version (void)
+{
+ const char *linker_identifier;
+ const char *linker_version;
+
+ enum linker_api_version supported_api = LAPI_UNSPECIFIED;
+#if HAVE_PTHREAD_LOCKING
+ supported_api = LAPI_V1;
+#endif
+
+ api_version = get_api_version ("GCC", BASE_VERSION, LAPI_UNSPECIFIED,
+ supported_api, &linker_identifier, &linker_version);
+
+ switch (api_version)
+ {
+ case LAPI_UNSPECIFIED:
+ break;
+ case LAPI_V1:
+ check (get_symbols_v3, LDPL_FATAL,
+ "get_symbols_v3 required for API version 1");
+ check (add_symbols_v2, LDPL_FATAL,
+ "add_symbols_v2 required for API version 1");
+ break;
+ default:
+ fprintf (stderr, "unsupported API version\n");
+ abort ();
+ }
+}
+
/* Called by a linker after loading the plugin. TV is the transfer vector. */
enum ld_plugin_status
@@ -1496,12 +1532,18 @@ onload (struct ld_plugin_tv *tv)
/* We only use this to make user-friendly temp file names. */
link_output_name = p->tv_u.tv_string;
break;
+ case LDPT_GET_API_VERSION:
+ get_api_version = p->tv_u.tv_get_api_version;
+ break;
default:
break;
}
p++;
}
+ if (get_api_version)
+ negotiate_api_version ();
+
check (register_claim_file, LDPL_FATAL, "register_claim_file not found");
check (add_symbols, LDPL_FATAL, "add_symbols not found");
status = register_claim_file (claim_file_handler);
^ permalink raw reply [flat|nested] 11+ messages in thread
* [gcc(refs/users/marxin/heads/lto-plugin-get_symbols_v3-v4)] lto-plugin: implement LDPT_GET_API_VERSION
@ 2022-07-08 7:58 Martin Liska
0 siblings, 0 replies; 11+ messages in thread
From: Martin Liska @ 2022-07-08 7:58 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:19ad66f09d5daddeeffc9bdb4cbc2e91ddad2eb7
commit 19ad66f09d5daddeeffc9bdb4cbc2e91ddad2eb7
Author: Martin Liska <mliska@suse.cz>
Date: Mon May 16 14:01:52 2022 +0200
lto-plugin: implement LDPT_GET_API_VERSION
include/ChangeLog:
* plugin-api.h (enum linker_api_version): New enum.
(ld_plugin_get_api_version): New.
(enum ld_plugin_tag): Add LDPT_GET_API_VERSION.
(struct ld_plugin_tv): Add tv_get_api_version.
lto-plugin/ChangeLog:
* lto-plugin.c (negotiate_api_version): New.
(onload): Negotiate API version.
* Makefile.am: Add -DBASE_VERSION.
* Makefile.in: Regenerate.
Diff:
---
include/plugin-api.h | 32 ++++++++++++++++++++++++++++++++
lto-plugin/Makefile.am | 2 +-
lto-plugin/Makefile.in | 2 +-
lto-plugin/lto-plugin.c | 43 +++++++++++++++++++++++++++++++++++++++++++
4 files changed, 77 insertions(+), 2 deletions(-)
diff --git a/include/plugin-api.h b/include/plugin-api.h
index 8aebe2ff267..1deda680081 100644
--- a/include/plugin-api.h
+++ b/include/plugin-api.h
@@ -483,6 +483,36 @@ enum ld_plugin_level
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_UNSPECIFIED = 0,
+
+ /* 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 = 1
+};
+
+/* 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.
+ Identifier pointers remain valid as long as the plugin is loaded. */
+
+typedef
+enum linker_api_version
+(*ld_plugin_get_api_version) (const char *plugin_identifier,
+ const char *plugin_version,
+ enum linker_api_version minimal_api_supported,
+ enum linker_api_version 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
@@ -521,6 +551,7 @@ enum ld_plugin_tag
LDPT_REGISTER_NEW_INPUT_HOOK,
LDPT_GET_WRAP_SYMBOLS,
LDPT_ADD_SYMBOLS_V2,
+ LDPT_GET_API_VERSION,
};
/* The plugin transfer vector. */
@@ -556,6 +587,7 @@ struct ld_plugin_tv
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;
};
diff --git a/lto-plugin/Makefile.am b/lto-plugin/Makefile.am
index 81362eafc36..482946e4dd5 100644
--- a/lto-plugin/Makefile.am
+++ b/lto-plugin/Makefile.am
@@ -8,7 +8,7 @@ target_noncanonical := @target_noncanonical@
libexecsubdir := $(libexecdir)/gcc/$(real_target_noncanonical)/$(gcc_version)$(accel_dir_suffix)
AM_CPPFLAGS = -I$(top_srcdir)/../include $(DEFS)
-AM_CFLAGS = @ac_lto_plugin_warn_cflags@ $(CET_HOST_FLAGS)
+AM_CFLAGS = @ac_lto_plugin_warn_cflags@ $(CET_HOST_FLAGS) -DBASE_VERSION='"$(gcc_version)"'
# The plug-in depends on pthreads.
AM_LDFLAGS = -pthread @ac_lto_plugin_ldflags@
AM_LIBTOOLFLAGS = --tag=disable-static
diff --git a/lto-plugin/Makefile.in b/lto-plugin/Makefile.in
index 2033dd9b7c2..9453bc7d607 100644
--- a/lto-plugin/Makefile.in
+++ b/lto-plugin/Makefile.in
@@ -343,7 +343,7 @@ AUTOMAKE_OPTIONS = no-dependencies
gcc_version := $(shell @get_gcc_base_ver@ $(top_srcdir)/../gcc/BASE-VER)
libexecsubdir := $(libexecdir)/gcc/$(real_target_noncanonical)/$(gcc_version)$(accel_dir_suffix)
AM_CPPFLAGS = -I$(top_srcdir)/../include $(DEFS)
-AM_CFLAGS = @ac_lto_plugin_warn_cflags@ $(CET_HOST_FLAGS)
+AM_CFLAGS = @ac_lto_plugin_warn_cflags@ $(CET_HOST_FLAGS) -DBASE_VERSION='"$(gcc_version)"'
# The plug-in depends on pthreads.
AM_LDFLAGS = -pthread @ac_lto_plugin_ldflags@
AM_LIBTOOLFLAGS = --tag=disable-static
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index 7927dca60a4..31a8dffd134 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -70,6 +70,7 @@ along with this program; see the file COPYING3. If not see
#include <libiberty.h>
#include <hashtab.h>
#include "../gcc/lto/common.h"
+#include "../gcc/version.h"
#include "simple-object.h"
#include "plugin-api.h"
@@ -180,6 +181,10 @@ static ld_plugin_add_input_file add_input_file;
static ld_plugin_add_input_library add_input_library;
static ld_plugin_message message;
static ld_plugin_add_symbols add_symbols, add_symbols_v2;
+static ld_plugin_get_api_version get_api_version;
+
+/* By default, use version LAPI_UNSPECIFIED if there is not negotiation. */
+static enum linker_api_version api_version = LAPI_UNSPECIFIED;
static struct plugin_file_info *claimed_files = NULL;
static unsigned int num_claimed_files = 0;
@@ -1428,6 +1433,38 @@ process_option (const char *option)
verbose = verbose || debug;
}
+/* Negotiate linker API version. */
+
+static void
+negotiate_api_version (void)
+{
+ const char *linker_identifier;
+ const char *linker_version;
+
+ enum linker_api_version supported_api = LAPI_UNSPECIFIED;
+#if HAVE_PTHREAD_LOCKING
+ supported_api = LAPI_V1;
+#endif
+
+ api_version = get_api_version ("GCC", BASE_VERSION, LAPI_UNSPECIFIED,
+ supported_api, &linker_identifier, &linker_version);
+
+ switch (api_version)
+ {
+ case LAPI_UNSPECIFIED:
+ break;
+ case LAPI_V1:
+ check (get_symbols_v3, LDPL_FATAL,
+ "get_symbols_v3 required for API version 1");
+ check (add_symbols_v2, LDPL_FATAL,
+ "add_symbols_v2 required for API version 1");
+ break;
+ default:
+ fprintf (stderr, "unsupported API version\n");
+ abort ();
+ }
+}
+
/* Called by a linker after loading the plugin. TV is the transfer vector. */
enum ld_plugin_status
@@ -1496,12 +1533,18 @@ onload (struct ld_plugin_tv *tv)
/* We only use this to make user-friendly temp file names. */
link_output_name = p->tv_u.tv_string;
break;
+ case LDPT_GET_API_VERSION:
+ get_api_version = p->tv_u.tv_get_api_version;
+ break;
default:
break;
}
p++;
}
+ if (get_api_version)
+ negotiate_api_version ();
+
check (register_claim_file, LDPL_FATAL, "register_claim_file not found");
check (add_symbols, LDPL_FATAL, "add_symbols not found");
status = register_claim_file (claim_file_handler);
^ permalink raw reply [flat|nested] 11+ messages in thread
* [gcc(refs/users/marxin/heads/lto-plugin-get_symbols_v3-v4)] lto-plugin: implement LDPT_GET_API_VERSION
@ 2022-07-07 14:21 Martin Liska
0 siblings, 0 replies; 11+ messages in thread
From: Martin Liska @ 2022-07-07 14:21 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:55a530750449bf6bbc1d13d3cafddce22900392e
commit 55a530750449bf6bbc1d13d3cafddce22900392e
Author: Martin Liska <mliska@suse.cz>
Date: Mon May 16 14:01:52 2022 +0200
lto-plugin: implement LDPT_GET_API_VERSION
include/ChangeLog:
* plugin-api.h (enum linker_api_version): New enum.
(ld_plugin_get_api_version): New.
(enum ld_plugin_tag): Add LDPT_GET_API_VERSION.
(struct ld_plugin_tv): Add tv_get_api_version.
lto-plugin/ChangeLog:
* lto-plugin.c (negotiate_api_version): New.
(onload): Negotiate API version.
Diff:
---
include/plugin-api.h | 32 ++++++++++++++++++++++++++++++++
lto-plugin/Makefile.am | 2 ++
lto-plugin/Makefile.in | 1 +
lto-plugin/lto-plugin.c | 43 +++++++++++++++++++++++++++++++++++++++++++
4 files changed, 78 insertions(+)
diff --git a/include/plugin-api.h b/include/plugin-api.h
index 8aebe2ff267..1deda680081 100644
--- a/include/plugin-api.h
+++ b/include/plugin-api.h
@@ -483,6 +483,36 @@ enum ld_plugin_level
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_UNSPECIFIED = 0,
+
+ /* 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 = 1
+};
+
+/* 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.
+ Identifier pointers remain valid as long as the plugin is loaded. */
+
+typedef
+enum linker_api_version
+(*ld_plugin_get_api_version) (const char *plugin_identifier,
+ const char *plugin_version,
+ enum linker_api_version minimal_api_supported,
+ enum linker_api_version 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
@@ -521,6 +551,7 @@ enum ld_plugin_tag
LDPT_REGISTER_NEW_INPUT_HOOK,
LDPT_GET_WRAP_SYMBOLS,
LDPT_ADD_SYMBOLS_V2,
+ LDPT_GET_API_VERSION,
};
/* The plugin transfer vector. */
@@ -556,6 +587,7 @@ struct ld_plugin_tv
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;
};
diff --git a/lto-plugin/Makefile.am b/lto-plugin/Makefile.am
index 81362eafc36..18e9bb48d7a 100644
--- a/lto-plugin/Makefile.am
+++ b/lto-plugin/Makefile.am
@@ -15,6 +15,8 @@ AM_LIBTOOLFLAGS = --tag=disable-static
override CFLAGS := $(filter-out -fsanitize=address -fsanitize=hwaddress,$(CFLAGS))
override LDFLAGS := $(filter-out -fsanitize=address -fsanitize=hwaddress,$(LDFLAGS))
+VERSION.O := ../gcc/version.o
+
libexecsub_LTLIBRARIES = liblto_plugin.la
gcc_build_dir = @gcc_build_dir@
in_gcc_libs = $(foreach lib, $(libexecsub_LTLIBRARIES), $(gcc_build_dir)/$(lib))
diff --git a/lto-plugin/Makefile.in b/lto-plugin/Makefile.in
index 2033dd9b7c2..3b5dbcecf63 100644
--- a/lto-plugin/Makefile.in
+++ b/lto-plugin/Makefile.in
@@ -347,6 +347,7 @@ AM_CFLAGS = @ac_lto_plugin_warn_cflags@ $(CET_HOST_FLAGS)
# The plug-in depends on pthreads.
AM_LDFLAGS = -pthread @ac_lto_plugin_ldflags@
AM_LIBTOOLFLAGS = --tag=disable-static
+VERSION.O := ../gcc/version.o
libexecsub_LTLIBRARIES = liblto_plugin.la
in_gcc_libs = $(foreach lib, $(libexecsub_LTLIBRARIES), $(gcc_build_dir)/$(lib))
@LTO_PLUGIN_USE_SYMVER_FALSE@version_arg = -export-symbols-regex onload
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index 7927dca60a4..5bc0e1c2bc6 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -70,6 +70,7 @@ along with this program; see the file COPYING3. If not see
#include <libiberty.h>
#include <hashtab.h>
#include "../gcc/lto/common.h"
+#include "../gcc/version.h"
#include "simple-object.h"
#include "plugin-api.h"
@@ -180,6 +181,10 @@ static ld_plugin_add_input_file add_input_file;
static ld_plugin_add_input_library add_input_library;
static ld_plugin_message message;
static ld_plugin_add_symbols add_symbols, add_symbols_v2;
+static ld_plugin_get_api_version get_api_version;
+
+/* By default, use version LAPI_UNSPECIFIED if there is not negotiation. */
+static enum linker_api_version api_version = LAPI_UNSPECIFIED;
static struct plugin_file_info *claimed_files = NULL;
static unsigned int num_claimed_files = 0;
@@ -1428,6 +1433,38 @@ process_option (const char *option)
verbose = verbose || debug;
}
+/* Negotiate linker API version. */
+
+static void
+negotiate_api_version (void)
+{
+ const char *linker_identifier;
+ const char *linker_version;
+
+ enum linker_api_version supported_api = LAPI_UNSPECIFIED;
+#if HAVE_PTHREAD_LOCKING
+ supported_api = LAPI_V1;
+#endif
+
+ api_version = get_api_version ("GCC", version_string, LAPI_UNSPECIFIED,
+ supported_api, &linker_identifier, &linker_version);
+
+ switch (api_version)
+ {
+ case LAPI_UNSPECIFIED:
+ break;
+ case LAPI_V1:
+ check (get_symbols_v3, LDPL_FATAL,
+ "get_symbols_v3 required for API version 1");
+ check (add_symbols_v2, LDPL_FATAL,
+ "add_symbols_v2 required for API version 1");
+ break;
+ default:
+ fprintf (stderr, "unsupported API version\n");
+ abort ();
+ }
+}
+
/* Called by a linker after loading the plugin. TV is the transfer vector. */
enum ld_plugin_status
@@ -1496,12 +1533,18 @@ onload (struct ld_plugin_tv *tv)
/* We only use this to make user-friendly temp file names. */
link_output_name = p->tv_u.tv_string;
break;
+ case LDPT_GET_API_VERSION:
+ get_api_version = p->tv_u.tv_get_api_version;
+ break;
default:
break;
}
p++;
}
+ if (get_api_version)
+ negotiate_api_version ();
+
check (register_claim_file, LDPL_FATAL, "register_claim_file not found");
check (add_symbols, LDPL_FATAL, "add_symbols not found");
status = register_claim_file (claim_file_handler);
^ permalink raw reply [flat|nested] 11+ messages in thread
* [gcc(refs/users/marxin/heads/lto-plugin-get_symbols_v3-v4)] lto-plugin: implement LDPT_GET_API_VERSION
@ 2022-07-07 14:10 Martin Liska
0 siblings, 0 replies; 11+ messages in thread
From: Martin Liska @ 2022-07-07 14:10 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:47672794c90f171c6b4d4a8acaa5ac303999ec6f
commit 47672794c90f171c6b4d4a8acaa5ac303999ec6f
Author: Martin Liska <mliska@suse.cz>
Date: Mon May 16 14:01:52 2022 +0200
lto-plugin: implement LDPT_GET_API_VERSION
include/ChangeLog:
* plugin-api.h (enum linker_api_version): New enum.
(ld_plugin_get_api_version): New.
(enum ld_plugin_tag): Add LDPT_GET_API_VERSION.
(struct ld_plugin_tv): Add tv_get_api_version.
lto-plugin/ChangeLog:
* lto-plugin.c (negotiate_api_version): New.
(onload): Negotiate API version.
Diff:
---
include/plugin-api.h | 32 ++++++++++++++++++++++++++++++++
lto-plugin/lto-plugin.c | 43 +++++++++++++++++++++++++++++++++++++++++++
2 files changed, 75 insertions(+)
diff --git a/include/plugin-api.h b/include/plugin-api.h
index 8aebe2ff267..1deda680081 100644
--- a/include/plugin-api.h
+++ b/include/plugin-api.h
@@ -483,6 +483,36 @@ enum ld_plugin_level
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_UNSPECIFIED = 0,
+
+ /* 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 = 1
+};
+
+/* 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.
+ Identifier pointers remain valid as long as the plugin is loaded. */
+
+typedef
+enum linker_api_version
+(*ld_plugin_get_api_version) (const char *plugin_identifier,
+ const char *plugin_version,
+ enum linker_api_version minimal_api_supported,
+ enum linker_api_version 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
@@ -521,6 +551,7 @@ enum ld_plugin_tag
LDPT_REGISTER_NEW_INPUT_HOOK,
LDPT_GET_WRAP_SYMBOLS,
LDPT_ADD_SYMBOLS_V2,
+ LDPT_GET_API_VERSION,
};
/* The plugin transfer vector. */
@@ -556,6 +587,7 @@ struct ld_plugin_tv
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;
};
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index 7927dca60a4..5bc0e1c2bc6 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -70,6 +70,7 @@ along with this program; see the file COPYING3. If not see
#include <libiberty.h>
#include <hashtab.h>
#include "../gcc/lto/common.h"
+#include "../gcc/version.h"
#include "simple-object.h"
#include "plugin-api.h"
@@ -180,6 +181,10 @@ static ld_plugin_add_input_file add_input_file;
static ld_plugin_add_input_library add_input_library;
static ld_plugin_message message;
static ld_plugin_add_symbols add_symbols, add_symbols_v2;
+static ld_plugin_get_api_version get_api_version;
+
+/* By default, use version LAPI_UNSPECIFIED if there is not negotiation. */
+static enum linker_api_version api_version = LAPI_UNSPECIFIED;
static struct plugin_file_info *claimed_files = NULL;
static unsigned int num_claimed_files = 0;
@@ -1428,6 +1433,38 @@ process_option (const char *option)
verbose = verbose || debug;
}
+/* Negotiate linker API version. */
+
+static void
+negotiate_api_version (void)
+{
+ const char *linker_identifier;
+ const char *linker_version;
+
+ enum linker_api_version supported_api = LAPI_UNSPECIFIED;
+#if HAVE_PTHREAD_LOCKING
+ supported_api = LAPI_V1;
+#endif
+
+ api_version = get_api_version ("GCC", version_string, LAPI_UNSPECIFIED,
+ supported_api, &linker_identifier, &linker_version);
+
+ switch (api_version)
+ {
+ case LAPI_UNSPECIFIED:
+ break;
+ case LAPI_V1:
+ check (get_symbols_v3, LDPL_FATAL,
+ "get_symbols_v3 required for API version 1");
+ check (add_symbols_v2, LDPL_FATAL,
+ "add_symbols_v2 required for API version 1");
+ break;
+ default:
+ fprintf (stderr, "unsupported API version\n");
+ abort ();
+ }
+}
+
/* Called by a linker after loading the plugin. TV is the transfer vector. */
enum ld_plugin_status
@@ -1496,12 +1533,18 @@ onload (struct ld_plugin_tv *tv)
/* We only use this to make user-friendly temp file names. */
link_output_name = p->tv_u.tv_string;
break;
+ case LDPT_GET_API_VERSION:
+ get_api_version = p->tv_u.tv_get_api_version;
+ break;
default:
break;
}
p++;
}
+ if (get_api_version)
+ negotiate_api_version ();
+
check (register_claim_file, LDPL_FATAL, "register_claim_file not found");
check (add_symbols, LDPL_FATAL, "add_symbols not found");
status = register_claim_file (claim_file_handler);
^ permalink raw reply [flat|nested] 11+ messages in thread
* [gcc(refs/users/marxin/heads/lto-plugin-get_symbols_v3-v4)] lto-plugin: implement LDPT_GET_API_VERSION
@ 2022-06-27 8:07 Martin Liska
0 siblings, 0 replies; 11+ messages in thread
From: Martin Liska @ 2022-06-27 8:07 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:2ba0c9f93b38905f69acbea107c4623ea229134a
commit 2ba0c9f93b38905f69acbea107c4623ea229134a
Author: Martin Liska <mliska@suse.cz>
Date: Mon May 16 14:01:52 2022 +0200
lto-plugin: implement LDPT_GET_API_VERSION
include/ChangeLog:
* plugin-api.h (enum linker_api_version): New enum.
(ld_plugin_get_api_version): New.
(enum ld_plugin_tag): Add LDPT_GET_API_VERSION.
(struct ld_plugin_tv): Add tv_get_api_version.
lto-plugin/ChangeLog:
* lto-plugin.c (negotiate_api_version): New.
(onload): Negotiate API version.
Diff:
---
include/plugin-api.h | 31 +++++++++++++++++++++++++++++++
lto-plugin/lto-plugin.c | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 69 insertions(+)
diff --git a/include/plugin-api.h b/include/plugin-api.h
index 8aebe2ff267..cc3a43b44a6 100644
--- a/include/plugin-api.h
+++ b/include/plugin-api.h
@@ -483,6 +483,35 @@ enum ld_plugin_level
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_UNSPECIFIED = 0,
+
+ /* 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 = 1
+};
+
+/* 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.
+ Identifier pointers remain valid as long as the plugin is loaded. */
+
+typedef
+enum linker_api_version
+(*ld_plugin_get_api_version) (const char *plugin_identifier, unsigned plugin_version,
+ enum linker_api_version minimal_api_supported,
+ enum linker_api_version maximal_api_supported,
+ const char **linker_identifier,
+ unsigned *linker_version);
+
/* Values for the tv_tag field of the transfer vector. */
enum ld_plugin_tag
@@ -521,6 +550,7 @@ enum ld_plugin_tag
LDPT_REGISTER_NEW_INPUT_HOOK,
LDPT_GET_WRAP_SYMBOLS,
LDPT_ADD_SYMBOLS_V2,
+ LDPT_GET_API_VERSION,
};
/* The plugin transfer vector. */
@@ -556,6 +586,7 @@ struct ld_plugin_tv
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;
};
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index 635e126946b..06e3219de75 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -74,6 +74,7 @@ along with this program; see the file COPYING3. If not see
#include "../gcc/lto/common.h"
#include "simple-object.h"
#include "plugin-api.h"
+#include "ansidecl.h"
/* We need to use I64 instead of ll width-specifier on native Windows.
The reason for this is that older MS-runtimes don't support the ll. */
@@ -174,6 +175,10 @@ static ld_plugin_add_input_file add_input_file;
static ld_plugin_add_input_library add_input_library;
static ld_plugin_message message;
static ld_plugin_add_symbols add_symbols, add_symbols_v2;
+static ld_plugin_get_api_version get_api_version;
+
+/* By default, use version LAPI_UNSPECIFIED if there is not negotiation. */
+static enum linker_api_version api_version = LAPI_UNSPECIFIED;
static struct plugin_file_info *claimed_files = NULL;
static unsigned int num_claimed_files = 0;
@@ -1421,6 +1426,33 @@ process_option (const char *option)
verbose = verbose || debug;
}
+/* Negotiate linker API version. */
+
+static void
+negotiate_api_version (void)
+{
+ const char *linker_identifier;
+ unsigned linker_version;
+
+ api_version = get_api_version ("GCC", GCC_VERSION, LAPI_UNSPECIFIED,
+ LAPI_V1, &linker_identifier, &linker_version);
+
+ switch (api_version)
+ {
+ case LAPI_UNSPECIFIED:
+ break;
+ case LAPI_V1:
+ check (get_symbols_v3, LDPL_FATAL,
+ "get_symbols_v3 required for API version 1");
+ check (add_symbols_v2, LDPL_FATAL,
+ "add_symbols_v2 required for API version 1");
+ break;
+ default:
+ fprintf (stderr, "unsupported API version\n");
+ abort ();
+ }
+}
+
/* Called by a linker after loading the plugin. TV is the transfer vector. */
enum ld_plugin_status
@@ -1487,12 +1519,18 @@ onload (struct ld_plugin_tv *tv)
/* We only use this to make user-friendly temp file names. */
link_output_name = p->tv_u.tv_string;
break;
+ case LDPT_GET_API_VERSION:
+ get_api_version = p->tv_u.tv_get_api_version;
+ break;
default:
break;
}
p++;
}
+ if (get_api_version)
+ negotiate_api_version ();
+
check (register_claim_file, LDPL_FATAL, "register_claim_file not found");
check (add_symbols, LDPL_FATAL, "add_symbols not found");
status = register_claim_file (claim_file_handler);
^ permalink raw reply [flat|nested] 11+ messages in thread
* [gcc(refs/users/marxin/heads/lto-plugin-get_symbols_v3-v4)] lto-plugin: implement LDPT_GET_API_VERSION
@ 2022-06-21 8:42 Martin Liska
0 siblings, 0 replies; 11+ messages in thread
From: Martin Liska @ 2022-06-21 8:42 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:880dd8405d005685a00c87efacbce198c9f54086
commit 880dd8405d005685a00c87efacbce198c9f54086
Author: Martin Liska <mliska@suse.cz>
Date: Mon May 16 14:01:52 2022 +0200
lto-plugin: implement LDPT_GET_API_VERSION
include/ChangeLog:
* plugin-api.h (enum linker_api_version): New enum.
(ld_plugin_get_api_version): New.
(enum ld_plugin_tag): Add LDPT_GET_API_VERSION.
(struct ld_plugin_tv): Add tv_get_api_version.
lto-plugin/ChangeLog:
* lto-plugin.c (negotiate_api_version): New.
(onload): Negotiate API version.
Diff:
---
include/plugin-api.h | 31 +++++++++++++++++++++++++++++++
lto-plugin/lto-plugin.c | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 69 insertions(+)
diff --git a/include/plugin-api.h b/include/plugin-api.h
index 8aebe2ff267..cc3a43b44a6 100644
--- a/include/plugin-api.h
+++ b/include/plugin-api.h
@@ -483,6 +483,35 @@ enum ld_plugin_level
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_UNSPECIFIED = 0,
+
+ /* 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 = 1
+};
+
+/* 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.
+ Identifier pointers remain valid as long as the plugin is loaded. */
+
+typedef
+enum linker_api_version
+(*ld_plugin_get_api_version) (const char *plugin_identifier, unsigned plugin_version,
+ enum linker_api_version minimal_api_supported,
+ enum linker_api_version maximal_api_supported,
+ const char **linker_identifier,
+ unsigned *linker_version);
+
/* Values for the tv_tag field of the transfer vector. */
enum ld_plugin_tag
@@ -521,6 +550,7 @@ enum ld_plugin_tag
LDPT_REGISTER_NEW_INPUT_HOOK,
LDPT_GET_WRAP_SYMBOLS,
LDPT_ADD_SYMBOLS_V2,
+ LDPT_GET_API_VERSION,
};
/* The plugin transfer vector. */
@@ -556,6 +586,7 @@ struct ld_plugin_tv
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;
};
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index 635e126946b..06e3219de75 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -74,6 +74,7 @@ along with this program; see the file COPYING3. If not see
#include "../gcc/lto/common.h"
#include "simple-object.h"
#include "plugin-api.h"
+#include "ansidecl.h"
/* We need to use I64 instead of ll width-specifier on native Windows.
The reason for this is that older MS-runtimes don't support the ll. */
@@ -174,6 +175,10 @@ static ld_plugin_add_input_file add_input_file;
static ld_plugin_add_input_library add_input_library;
static ld_plugin_message message;
static ld_plugin_add_symbols add_symbols, add_symbols_v2;
+static ld_plugin_get_api_version get_api_version;
+
+/* By default, use version LAPI_UNSPECIFIED if there is not negotiation. */
+static enum linker_api_version api_version = LAPI_UNSPECIFIED;
static struct plugin_file_info *claimed_files = NULL;
static unsigned int num_claimed_files = 0;
@@ -1421,6 +1426,33 @@ process_option (const char *option)
verbose = verbose || debug;
}
+/* Negotiate linker API version. */
+
+static void
+negotiate_api_version (void)
+{
+ const char *linker_identifier;
+ unsigned linker_version;
+
+ api_version = get_api_version ("GCC", GCC_VERSION, LAPI_UNSPECIFIED,
+ LAPI_V1, &linker_identifier, &linker_version);
+
+ switch (api_version)
+ {
+ case LAPI_UNSPECIFIED:
+ break;
+ case LAPI_V1:
+ check (get_symbols_v3, LDPL_FATAL,
+ "get_symbols_v3 required for API version 1");
+ check (add_symbols_v2, LDPL_FATAL,
+ "add_symbols_v2 required for API version 1");
+ break;
+ default:
+ fprintf (stderr, "unsupported API version\n");
+ abort ();
+ }
+}
+
/* Called by a linker after loading the plugin. TV is the transfer vector. */
enum ld_plugin_status
@@ -1487,12 +1519,18 @@ onload (struct ld_plugin_tv *tv)
/* We only use this to make user-friendly temp file names. */
link_output_name = p->tv_u.tv_string;
break;
+ case LDPT_GET_API_VERSION:
+ get_api_version = p->tv_u.tv_get_api_version;
+ break;
default:
break;
}
p++;
}
+ if (get_api_version)
+ negotiate_api_version ();
+
check (register_claim_file, LDPL_FATAL, "register_claim_file not found");
check (add_symbols, LDPL_FATAL, "add_symbols not found");
status = register_claim_file (claim_file_handler);
^ permalink raw reply [flat|nested] 11+ messages in thread
* [gcc(refs/users/marxin/heads/lto-plugin-get_symbols_v3-v4)] lto-plugin: implement LDPT_GET_API_VERSION
@ 2022-06-16 6:48 Martin Liska
0 siblings, 0 replies; 11+ messages in thread
From: Martin Liska @ 2022-06-16 6:48 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:1f87e2cb2652fc45ba6ddab65ebbf136ac68e852
commit 1f87e2cb2652fc45ba6ddab65ebbf136ac68e852
Author: Martin Liska <mliska@suse.cz>
Date: Mon May 16 14:01:52 2022 +0200
lto-plugin: implement LDPT_GET_API_VERSION
include/ChangeLog:
* plugin-api.h (enum linker_api_version): New enum.
(ld_plugin_get_api_version): New.
(enum ld_plugin_tag): Add LDPT_GET_API_VERSION.
(struct ld_plugin_tv): Add tv_get_api_version.
lto-plugin/ChangeLog:
* lto-plugin.c (negotiate_api_version): New.
(onload): Negotiate API version.
Diff:
---
include/plugin-api.h | 30 ++++++++++++++++++++++++++++++
lto-plugin/lto-plugin.c | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 68 insertions(+)
diff --git a/include/plugin-api.h b/include/plugin-api.h
index 8aebe2ff267..17b10180655 100644
--- a/include/plugin-api.h
+++ b/include/plugin-api.h
@@ -483,6 +483,34 @@ enum ld_plugin_level
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_UNSPECIFIED = 0,
+
+ /* API level v1. The linker provides add_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 = 1
+};
+
+/* 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. */
+
+typedef
+enum linker_api_version
+(*ld_plugin_get_api_version) (const char *plugin_identifier, unsigned plugin_version,
+ enum linker_api_version minimal_api_supported,
+ enum linker_api_version maximal_api_supported,
+ const char **linker_identifier,
+ unsigned *linker_version);
+
/* Values for the tv_tag field of the transfer vector. */
enum ld_plugin_tag
@@ -521,6 +549,7 @@ enum ld_plugin_tag
LDPT_REGISTER_NEW_INPUT_HOOK,
LDPT_GET_WRAP_SYMBOLS,
LDPT_ADD_SYMBOLS_V2,
+ LDPT_GET_API_VERSION,
};
/* The plugin transfer vector. */
@@ -556,6 +585,7 @@ struct ld_plugin_tv
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;
};
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index 13118c4983c..208b26d5c4b 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -70,6 +70,7 @@ along with this program; see the file COPYING3. If not see
#include "../gcc/lto/common.h"
#include "simple-object.h"
#include "plugin-api.h"
+#include "ansidecl.h"
/* We need to use I64 instead of ll width-specifier on native Windows.
The reason for this is that older MS-runtimes don't support the ll. */
@@ -170,6 +171,10 @@ static ld_plugin_add_input_file add_input_file;
static ld_plugin_add_input_library add_input_library;
static ld_plugin_message message;
static ld_plugin_add_symbols add_symbols, add_symbols_v2;
+static ld_plugin_get_api_version get_api_version;
+
+/* By default, use version LAPI_UNSPECIFIED if there is not negotiation. */
+static enum linker_api_version api_version = LAPI_UNSPECIFIED;
static struct plugin_file_info *claimed_files = NULL;
static unsigned int num_claimed_files = 0;
@@ -1415,6 +1420,33 @@ process_option (const char *option)
verbose = verbose || debug;
}
+/* Negotiate linker API version. */
+
+static void
+negotiate_api_version (void)
+{
+ const char *linker_identifier;
+ unsigned linker_version;
+
+ api_version = get_api_version ("GCC", GCC_VERSION, LAPI_UNSPECIFIED,
+ LAPI_V1, &linker_identifier, &linker_version);
+
+ switch (api_version)
+ {
+ case LAPI_UNSPECIFIED:
+ break;
+ case LAPI_V1:
+ check (get_symbols_v3, LDPL_FATAL,
+ "get_symbols_v3 required for API version 1");
+ check (add_symbols_v2, LDPL_FATAL,
+ "add_symbols_v2 required for API version 1");
+ break;
+ default:
+ fprintf (stderr, "unsupported API version\n");
+ abort ();
+ }
+}
+
/* Called by a linker after loading the plugin. TV is the transfer vector. */
enum ld_plugin_status
@@ -1481,12 +1513,18 @@ onload (struct ld_plugin_tv *tv)
/* We only use this to make user-friendly temp file names. */
link_output_name = p->tv_u.tv_string;
break;
+ case LDPT_GET_API_VERSION:
+ get_api_version = p->tv_u.tv_get_api_version;
+ break;
default:
break;
}
p++;
}
+ if (get_api_version)
+ negotiate_api_version ();
+
check (register_claim_file, LDPL_FATAL, "register_claim_file not found");
check (add_symbols, LDPL_FATAL, "add_symbols not found");
status = register_claim_file (claim_file_handler);
^ permalink raw reply [flat|nested] 11+ messages in thread
* [gcc(refs/users/marxin/heads/lto-plugin-get_symbols_v3-v4)] lto-plugin: implement LDPT_GET_API_VERSION
@ 2022-05-19 14:06 Martin Liska
0 siblings, 0 replies; 11+ messages in thread
From: Martin Liska @ 2022-05-19 14:06 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:976c0f482631fcfdbba265e833cd66da4a1d12e8
commit 976c0f482631fcfdbba265e833cd66da4a1d12e8
Author: Martin Liska <mliska@suse.cz>
Date: Mon May 16 14:01:52 2022 +0200
lto-plugin: implement LDPT_GET_API_VERSION
include/ChangeLog:
* plugin-api.h (enum linker_api_version): New enum.
(ld_plugin_get_api_version): New.
(enum ld_plugin_tag): Add LDPT_GET_API_VERSION.
(struct ld_plugin_tv): Add tv_get_api_version.
lto-plugin/ChangeLog:
* lto-plugin.c (negotiate_api_version): New.
(onload): Negotiate API version.
Diff:
---
include/plugin-api.h | 30 ++++++++++++++++++++++++++++++
lto-plugin/lto-plugin.c | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 68 insertions(+)
diff --git a/include/plugin-api.h b/include/plugin-api.h
index 8aebe2ff267..17b10180655 100644
--- a/include/plugin-api.h
+++ b/include/plugin-api.h
@@ -483,6 +483,34 @@ enum ld_plugin_level
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_UNSPECIFIED = 0,
+
+ /* API level v1. The linker provides add_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 = 1
+};
+
+/* 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. */
+
+typedef
+enum linker_api_version
+(*ld_plugin_get_api_version) (const char *plugin_identifier, unsigned plugin_version,
+ enum linker_api_version minimal_api_supported,
+ enum linker_api_version maximal_api_supported,
+ const char **linker_identifier,
+ unsigned *linker_version);
+
/* Values for the tv_tag field of the transfer vector. */
enum ld_plugin_tag
@@ -521,6 +549,7 @@ enum ld_plugin_tag
LDPT_REGISTER_NEW_INPUT_HOOK,
LDPT_GET_WRAP_SYMBOLS,
LDPT_ADD_SYMBOLS_V2,
+ LDPT_GET_API_VERSION,
};
/* The plugin transfer vector. */
@@ -556,6 +585,7 @@ struct ld_plugin_tv
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;
};
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index 13118c4983c..208b26d5c4b 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -70,6 +70,7 @@ along with this program; see the file COPYING3. If not see
#include "../gcc/lto/common.h"
#include "simple-object.h"
#include "plugin-api.h"
+#include "ansidecl.h"
/* We need to use I64 instead of ll width-specifier on native Windows.
The reason for this is that older MS-runtimes don't support the ll. */
@@ -170,6 +171,10 @@ static ld_plugin_add_input_file add_input_file;
static ld_plugin_add_input_library add_input_library;
static ld_plugin_message message;
static ld_plugin_add_symbols add_symbols, add_symbols_v2;
+static ld_plugin_get_api_version get_api_version;
+
+/* By default, use version LAPI_UNSPECIFIED if there is not negotiation. */
+static enum linker_api_version api_version = LAPI_UNSPECIFIED;
static struct plugin_file_info *claimed_files = NULL;
static unsigned int num_claimed_files = 0;
@@ -1415,6 +1420,33 @@ process_option (const char *option)
verbose = verbose || debug;
}
+/* Negotiate linker API version. */
+
+static void
+negotiate_api_version (void)
+{
+ const char *linker_identifier;
+ unsigned linker_version;
+
+ api_version = get_api_version ("GCC", GCC_VERSION, LAPI_UNSPECIFIED,
+ LAPI_V1, &linker_identifier, &linker_version);
+
+ switch (api_version)
+ {
+ case LAPI_UNSPECIFIED:
+ break;
+ case LAPI_V1:
+ check (get_symbols_v3, LDPL_FATAL,
+ "get_symbols_v3 required for API version 1");
+ check (add_symbols_v2, LDPL_FATAL,
+ "add_symbols_v2 required for API version 1");
+ break;
+ default:
+ fprintf (stderr, "unsupported API version\n");
+ abort ();
+ }
+}
+
/* Called by a linker after loading the plugin. TV is the transfer vector. */
enum ld_plugin_status
@@ -1481,12 +1513,18 @@ onload (struct ld_plugin_tv *tv)
/* We only use this to make user-friendly temp file names. */
link_output_name = p->tv_u.tv_string;
break;
+ case LDPT_GET_API_VERSION:
+ get_api_version = p->tv_u.tv_get_api_version;
+ break;
default:
break;
}
p++;
}
+ if (get_api_version)
+ negotiate_api_version ();
+
check (register_claim_file, LDPL_FATAL, "register_claim_file not found");
check (add_symbols, LDPL_FATAL, "add_symbols not found");
status = register_claim_file (claim_file_handler);
^ permalink raw reply [flat|nested] 11+ messages in thread
* [gcc(refs/users/marxin/heads/lto-plugin-get_symbols_v3-v4)] lto-plugin: implement LDPT_GET_API_VERSION
@ 2022-05-19 14:02 Martin Liska
0 siblings, 0 replies; 11+ messages in thread
From: Martin Liska @ 2022-05-19 14:02 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:edf932462f68d367e3c77e17c4784cbcbb018be4
commit edf932462f68d367e3c77e17c4784cbcbb018be4
Author: Martin Liska <mliska@suse.cz>
Date: Mon May 16 14:01:52 2022 +0200
lto-plugin: implement LDPT_GET_API_VERSION
include/ChangeLog:
* plugin-api.h (enum linker_api_version): New enum.
(ld_plugin_get_api_version): New.
(enum ld_plugin_tag): Add LDPT_GET_API_VERSION.
(struct ld_plugin_tv): Add tv_get_api_version.
lto-plugin/ChangeLog:
* lto-plugin.c (negotiate_api_version): New.
(onload): Negotiate API version.
Diff:
---
include/plugin-api.h | 30 ++++++++++++++++++++++++++++++
lto-plugin/lto-plugin.c | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 68 insertions(+)
diff --git a/include/plugin-api.h b/include/plugin-api.h
index 8aebe2ff267..d839bad3558 100644
--- a/include/plugin-api.h
+++ b/include/plugin-api.h
@@ -483,6 +483,34 @@ enum ld_plugin_level
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_UNSPECIFIED = 0,
+
+ /* API level v1. The linker provides add_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 = 1
+};
+
+/* 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. */
+
+typedef
+enum linker_api_version
+(*ld_plugin_get_api_version) (char *plugin_identifier, unsigned plugin_version,
+ enum linker_api_version minimal_api_supported,
+ enum linker_api_version maximal_api_supported,
+ const char **linker_identifier,
+ unsigned *linker_version);
+
/* Values for the tv_tag field of the transfer vector. */
enum ld_plugin_tag
@@ -521,6 +549,7 @@ enum ld_plugin_tag
LDPT_REGISTER_NEW_INPUT_HOOK,
LDPT_GET_WRAP_SYMBOLS,
LDPT_ADD_SYMBOLS_V2,
+ LDPT_GET_API_VERSION,
};
/* The plugin transfer vector. */
@@ -556,6 +585,7 @@ struct ld_plugin_tv
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;
};
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index 13118c4983c..208b26d5c4b 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -70,6 +70,7 @@ along with this program; see the file COPYING3. If not see
#include "../gcc/lto/common.h"
#include "simple-object.h"
#include "plugin-api.h"
+#include "ansidecl.h"
/* We need to use I64 instead of ll width-specifier on native Windows.
The reason for this is that older MS-runtimes don't support the ll. */
@@ -170,6 +171,10 @@ static ld_plugin_add_input_file add_input_file;
static ld_plugin_add_input_library add_input_library;
static ld_plugin_message message;
static ld_plugin_add_symbols add_symbols, add_symbols_v2;
+static ld_plugin_get_api_version get_api_version;
+
+/* By default, use version LAPI_UNSPECIFIED if there is not negotiation. */
+static enum linker_api_version api_version = LAPI_UNSPECIFIED;
static struct plugin_file_info *claimed_files = NULL;
static unsigned int num_claimed_files = 0;
@@ -1415,6 +1420,33 @@ process_option (const char *option)
verbose = verbose || debug;
}
+/* Negotiate linker API version. */
+
+static void
+negotiate_api_version (void)
+{
+ const char *linker_identifier;
+ unsigned linker_version;
+
+ api_version = get_api_version ("GCC", GCC_VERSION, LAPI_UNSPECIFIED,
+ LAPI_V1, &linker_identifier, &linker_version);
+
+ switch (api_version)
+ {
+ case LAPI_UNSPECIFIED:
+ break;
+ case LAPI_V1:
+ check (get_symbols_v3, LDPL_FATAL,
+ "get_symbols_v3 required for API version 1");
+ check (add_symbols_v2, LDPL_FATAL,
+ "add_symbols_v2 required for API version 1");
+ break;
+ default:
+ fprintf (stderr, "unsupported API version\n");
+ abort ();
+ }
+}
+
/* Called by a linker after loading the plugin. TV is the transfer vector. */
enum ld_plugin_status
@@ -1481,12 +1513,18 @@ onload (struct ld_plugin_tv *tv)
/* We only use this to make user-friendly temp file names. */
link_output_name = p->tv_u.tv_string;
break;
+ case LDPT_GET_API_VERSION:
+ get_api_version = p->tv_u.tv_get_api_version;
+ break;
default:
break;
}
p++;
}
+ if (get_api_version)
+ negotiate_api_version ();
+
check (register_claim_file, LDPL_FATAL, "register_claim_file not found");
check (add_symbols, LDPL_FATAL, "add_symbols not found");
status = register_claim_file (claim_file_handler);
^ permalink raw reply [flat|nested] 11+ messages in thread
* [gcc(refs/users/marxin/heads/lto-plugin-get_symbols_v3-v4)] lto-plugin: implement LDPT_GET_API_VERSION
@ 2022-05-19 13:54 Martin Liska
0 siblings, 0 replies; 11+ messages in thread
From: Martin Liska @ 2022-05-19 13:54 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:7ad7102117995bbc703277b45250bdb62c6fdfcf
commit 7ad7102117995bbc703277b45250bdb62c6fdfcf
Author: Martin Liska <mliska@suse.cz>
Date: Mon May 16 14:01:52 2022 +0200
lto-plugin: implement LDPT_GET_API_VERSION
include/ChangeLog:
* plugin-api.h (enum linker_api_version): New enum.
(ld_plugin_get_api_version): New.
(enum ld_plugin_tag): Add LDPT_GET_API_VERSION.
(struct ld_plugin_tv): Add tv_get_api_version.
lto-plugin/ChangeLog:
* lto-plugin.c (negotiate_api_version): New.
(onload): Negotiate API version.
Diff:
---
include/plugin-api.h | 30 ++++++++++++++++++++++++++++++
lto-plugin/lto-plugin.c | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 68 insertions(+)
diff --git a/include/plugin-api.h b/include/plugin-api.h
index 8aebe2ff267..8774260930d 100644
--- a/include/plugin-api.h
+++ b/include/plugin-api.h
@@ -483,6 +483,34 @@ enum ld_plugin_level
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_UNSPECIFIED = 0,
+
+ /* API level v1. The linker provides add_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 = 1
+};
+
+/* 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. */
+
+typedef
+enum linker_api_version
+(*ld_plugin_get_api_version) (char *plugin_identifier, int plugin_version,
+ enum linker_api_version minimal_api_supported,
+ enum linker_api_version maximal_api_supported,
+ const char **linker_identifier,
+ int *linker_version);
+
/* Values for the tv_tag field of the transfer vector. */
enum ld_plugin_tag
@@ -521,6 +549,7 @@ enum ld_plugin_tag
LDPT_REGISTER_NEW_INPUT_HOOK,
LDPT_GET_WRAP_SYMBOLS,
LDPT_ADD_SYMBOLS_V2,
+ LDPT_GET_API_VERSION,
};
/* The plugin transfer vector. */
@@ -556,6 +585,7 @@ struct ld_plugin_tv
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;
};
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index 13118c4983c..7c5e5d67729 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -70,6 +70,7 @@ along with this program; see the file COPYING3. If not see
#include "../gcc/lto/common.h"
#include "simple-object.h"
#include "plugin-api.h"
+#include "ansidecl.h"
/* We need to use I64 instead of ll width-specifier on native Windows.
The reason for this is that older MS-runtimes don't support the ll. */
@@ -170,6 +171,10 @@ static ld_plugin_add_input_file add_input_file;
static ld_plugin_add_input_library add_input_library;
static ld_plugin_message message;
static ld_plugin_add_symbols add_symbols, add_symbols_v2;
+static ld_plugin_get_api_version get_api_version;
+
+/* By default, use version LAPI_UNSPECIFIED if there is not negotiation. */
+static enum linker_api_version api_version = LAPI_UNSPECIFIED;
static struct plugin_file_info *claimed_files = NULL;
static unsigned int num_claimed_files = 0;
@@ -1415,6 +1420,33 @@ process_option (const char *option)
verbose = verbose || debug;
}
+/* Negotiate linker API version. */
+
+static void
+negotiate_api_version (void)
+{
+ const char *linker_identifier;
+ int linker_version;
+
+ api_version = get_api_version ("GCC", GCC_VERSION, LAPI_UNSPECIFIED,
+ LAPI_V1, &linker_identifier, &linker_version);
+
+ switch (api_version)
+ {
+ case LAPI_UNSPECIFIED:
+ break;
+ case LAPI_V1:
+ check (get_symbols_v3, LDPL_FATAL,
+ "get_symbols_v3 required for API version 1");
+ check (add_symbols_v2, LDPL_FATAL,
+ "add_symbols_v2 required for API version 1");
+ break;
+ default:
+ fprintf (stderr, "unsupported API version\n");
+ abort ();
+ }
+}
+
/* Called by a linker after loading the plugin. TV is the transfer vector. */
enum ld_plugin_status
@@ -1481,12 +1513,18 @@ onload (struct ld_plugin_tv *tv)
/* We only use this to make user-friendly temp file names. */
link_output_name = p->tv_u.tv_string;
break;
+ case LDPT_GET_API_VERSION:
+ get_api_version = p->tv_u.tv_get_api_version;
+ break;
default:
break;
}
p++;
}
+ if (get_api_version)
+ negotiate_api_version ();
+
check (register_claim_file, LDPL_FATAL, "register_claim_file not found");
check (add_symbols, LDPL_FATAL, "add_symbols not found");
status = register_claim_file (claim_file_handler);
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2022-07-08 8:01 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
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