meson: Drop the .fa library suffix

The non-standard .fa library suffix breaks the link source
de-duplication done by Meson so drop it.

The lack of link source de-duplication causes AddressSanitizer to
complain ODR violations, and makes GNU ld abort when combined with
clang's LTO.

Fortunately, the non-standard suffix is not necessary anymore for
two reasons.

First, the non-standard suffix was necessary for fork-fuzzing.
Meson wraps all standard-suffixed libraries with --start-group and
--end-group. This made a fork-fuzz.ld linker script wrapped as well and
broke builds. Commit d2e6f9272d ("fuzz: remove fork-fuzzing
scaffolding") dropped fork-fuzzing so we can now restore the standard
suffix.

Second, the libraries are not even built anymore, because it is
possible to just use the object files directly via extract_all_objects().

The occurences of the suffix were detected and removed by performing
a tree-wide search with 'fa' and .fa (note the quotes and dot).

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-ID: <20240524-xkb-v4-4-2de564e5c859@daynix.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

.gitlab-ci.d/buildtest-template.yml

@@ -45,10 +45,8 @@
     exclude:
       - build/**/*.p
       - build/**/*.a.p
-      - build/**/*.fa.p
       - build/**/*.c.o
       - build/**/*.c.o.d
-      - build/**/*.fa
 
 .common_test_job_template:
   extends: .base_job_template

.gitlab-ci.d/buildtest.yml

@@ -178,10 +178,8 @@ build-previous-qemu:
     exclude:
       - build-previous/**/*.p
       - build-previous/**/*.a.p
-      - build-previous/**/*.fa.p
       - build-previous/**/*.c.o
       - build-previous/**/*.c.o.d
-      - build-previous/**/*.fa
   needs:
     job: amd64-opensuse-leap-container
   variables:

docs/devel/build-system.rst

@@ -235,16 +235,11 @@ Subsystem sourcesets:
   are then turned into static libraries as follows::
 
     libchardev = static_library('chardev', chardev_ss.sources(),
-                                name_suffix: 'fa',
                                 build_by_default: false)
 
     chardev = declare_dependency(objects: libchardev.extract_all_objects(recursive: false),
                                  dependencies: chardev_ss.dependencies())
 
-  As of Meson 0.55.1, the special ``.fa`` suffix should be used for everything
-  that is used with ``link_whole``, to ensure that the link flags are placed
-  correctly in the command line.
-
 Target-independent emulator sourcesets:
   Various general purpose helper code is compiled only once and
   the .o files are linked into all output binaries that need it.

gdbstub/meson.build

@@ -19,13 +19,11 @@ gdb_system_ss = gdb_system_ss.apply({})
 
 libgdb_user = static_library('gdb_user',
                              gdb_user_ss.sources() + genh,
-                             name_suffix: 'fa',
                              c_args: '-DCONFIG_USER_ONLY',
                              build_by_default: false)
 
 libgdb_system = static_library('gdb_system',
                                 gdb_system_ss.sources() + genh,
-                                name_suffix: 'fa',
                                 build_by_default: false)
 
 gdb_user = declare_dependency(objects: libgdb_user.extract_all_objects(recursive: false))

meson.build

@@ -3467,7 +3467,6 @@ endif
 qom_ss = qom_ss.apply({})
 libqom = static_library('qom', qom_ss.sources() + genh,
                         dependencies: [qom_ss.dependencies()],
-                        name_suffix: 'fa',
                         build_by_default: false)
 qom = declare_dependency(objects: libqom.extract_all_objects(recursive: false),
                          dependencies: qom_ss.dependencies())
@@ -3475,7 +3474,6 @@ qom = declare_dependency(objects: libqom.extract_all_objects(recursive: false),
 event_loop_base = files('event-loop-base.c')
 event_loop_base = static_library('event-loop-base',
                                  sources: event_loop_base + genh,
-                                 name_suffix: 'fa',
                                  build_by_default: false)
 event_loop_base = declare_dependency(objects: event_loop_base.extract_all_objects(recursive: false),
                                      dependencies: [qom])
@@ -3728,7 +3726,6 @@ qemu_syms = custom_target('qemu.syms', output: 'qemu.syms',
 authz_ss = authz_ss.apply({})
 libauthz = static_library('authz', authz_ss.sources() + genh,
                           dependencies: [authz_ss.dependencies()],
-                          name_suffix: 'fa',
                           build_by_default: false)
 
 authz = declare_dependency(objects: libauthz.extract_all_objects(recursive: false),
@@ -3737,7 +3734,6 @@ authz = declare_dependency(objects: libauthz.extract_all_objects(recursive: fals
 crypto_ss = crypto_ss.apply({})
 libcrypto = static_library('crypto', crypto_ss.sources() + genh,
                            dependencies: [crypto_ss.dependencies()],
-                           name_suffix: 'fa',
                            build_by_default: false)
 
 crypto = declare_dependency(objects: libcrypto.extract_all_objects(recursive: false),
@@ -3747,14 +3743,12 @@ io_ss = io_ss.apply({})
 libio = static_library('io', io_ss.sources() + genh,
                        dependencies: [io_ss.dependencies()],
                        link_with: libqemuutil,
-                       name_suffix: 'fa',
                        build_by_default: false)
 
 io = declare_dependency(objects: libio.extract_all_objects(recursive: false),
                         dependencies: [io_ss.dependencies(), crypto, qom])
 
 libmigration = static_library('migration', sources: migration_files + genh,
-                              name_suffix: 'fa',
                               build_by_default: false)
 migration = declare_dependency(objects: libmigration.extract_all_objects(recursive: false),
                                dependencies: [qom, io])
@@ -3763,7 +3757,6 @@ system_ss.add(migration)
 block_ss = block_ss.apply({})
 libblock = static_library('block', block_ss.sources() + genh,
                           dependencies: block_ss.dependencies(),
-                          name_suffix: 'fa',
                           build_by_default: false)
 
 block = declare_dependency(objects: libblock.extract_all_objects(recursive: false),
@@ -3772,7 +3765,6 @@ block = declare_dependency(objects: libblock.extract_all_objects(recursive: fals
 blockdev_ss = blockdev_ss.apply({})
 libblockdev = static_library('blockdev', blockdev_ss.sources() + genh,
                              dependencies: blockdev_ss.dependencies(),
-                             name_suffix: 'fa',
                              build_by_default: false)
 
 blockdev = declare_dependency(objects: libblockdev.extract_all_objects(recursive: false),
@@ -3781,14 +3773,12 @@ blockdev = declare_dependency(objects: libblockdev.extract_all_objects(recursive
 qmp_ss = qmp_ss.apply({})
 libqmp = static_library('qmp', qmp_ss.sources() + genh,
                         dependencies: qmp_ss.dependencies(),
-                        name_suffix: 'fa',
                         build_by_default: false)
 
 qmp = declare_dependency(objects: libqmp.extract_all_objects(recursive: false),
                          dependencies: qmp_ss.dependencies())
 
 libchardev = static_library('chardev', chardev_ss.sources() + genh,
-                            name_suffix: 'fa',
                             dependencies: chardev_ss.dependencies(),
                             build_by_default: false)
 
@@ -3797,7 +3787,6 @@ chardev = declare_dependency(objects: libchardev.extract_all_objects(recursive:
 
 hwcore_ss = hwcore_ss.apply({})
 libhwcore = static_library('hwcore', sources: hwcore_ss.sources() + genh,
-                           name_suffix: 'fa',
                            build_by_default: false)
 hwcore = declare_dependency(objects: libhwcore.extract_all_objects(recursive: false))
 common_ss.add(hwcore)
@@ -3820,8 +3809,7 @@ common_all = static_library('common',
                             sources: common_ss.all_sources() + genh,
                             include_directories: common_user_inc,
                             implicit_include_directories: false,
-                            dependencies: common_ss.all_dependencies(),
+                            dependencies: common_ss.all_dependencies())
-                            name_suffix: 'fa')
 
 feature_to_c = find_program('scripts/feature_to_c.py')
 
@@ -3930,8 +3918,7 @@ foreach target : target_dirs
                  objects: objects,
                  include_directories: target_inc,
                  c_args: c_args,
-                 build_by_default: false,
+                 build_by_default: false)
-                 name_suffix: 'fa')
 
   if target.endswith('-softmmu')
     execs = [{

stubs/blk-exp-close-all.c

@@ -1,7 +1,7 @@
 #include "qemu/osdep.h"
 #include "block/export.h"
 
-/* Only used in programs that support block exports (libblockdev.fa) */
+/* Only used in programs that support block exports (libblockdev.a) */
 void blk_exp_close_all(void)
 {
 }

tcg/meson.build

@@ -31,7 +31,6 @@ tcg_ss = tcg_ss.apply({})
 
 libtcg_user = static_library('tcg_user',
                              tcg_ss.sources() + genh,
-                             name_suffix: 'fa',
                              dependencies: tcg_ss.dependencies(),
                              c_args: '-DCONFIG_USER_ONLY',
                              build_by_default: false)
@@ -42,7 +41,6 @@ user_ss.add(tcg_user)
 
 libtcg_system = static_library('tcg_system',
                                 tcg_ss.sources() + genh,
-                                name_suffix: 'fa',
                                 dependencies: tcg_ss.dependencies(),
                                 c_args: '-DCONFIG_SOFTMMU',
                                 build_by_default: false)

tests/Makefile.include

@@ -87,7 +87,7 @@ distclean-tcg: $(DISTCLEAN_TCG_TARGET_RULES)
 .PHONY: check-venv check-avocado check-acceptance check-acceptance-deprecated-warning
 
 # Build up our target list from the filtered list of ninja targets
-TARGETS=$(patsubst libqemu-%.fa, %, $(filter libqemu-%.fa, $(ninja-targets)))
+TARGETS=$(patsubst libqemu-%.a, %, $(filter libqemu-%.a, $(ninja-targets)))
 
 TESTS_VENV_TOKEN=$(BUILD_DIR)/pyvenv/tests.group
 TESTS_RESULTS_DIR=$(BUILD_DIR)/tests/results

tests/qtest/libqos/meson.build

@@ -69,7 +69,6 @@ if have_virtfs
 endif
 
 libqos = static_library('qos', libqos_srcs + genh,
-                        name_suffix: 'fa',
                         build_by_default: false)
 
 qos = declare_dependency(objects: libqos.extract_all_objects(recursive: false))