[PATCH v12 0/9] MR7111: Draft: support building Wine with LTO
work is still in progress. todo: - ensure that all affected sources (i.e. C sources with any kind of assembly) are listed in either way for all architectures - test Wine built with LTO relevant bug reports: - https://bugs.winehq.org/show_bug.cgi?id=41712 - https://bugs.winehq.org/show_bug.cgi?id=51051 -- v12: LTO quirks makedep: support skipping/disabling LTO configure: enable building Wine with LTO makedep: support LTO builds winegcc: support LTO builds winebuild: support LTO builds tools: helper functions for LTO builds ntdll: add attribute "used" to a few symbols that shouldn't be discarded loader: add attribute "used" to a few symbols that shouldn't be discarded https://gitlab.winehq.org/wine/wine/-/merge_requests/7111
From: Konstantin Demin <rockdrilla(a)gmail.com> these changes improve building Wine with LTO. Signed-off-by: Konstantin Demin <rockdrilla(a)gmail.com> --- loader/preloader.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/loader/preloader.c b/loader/preloader.c index d0551bae63a..3df0884d611 100644 --- a/loader/preloader.c +++ b/loader/preloader.c @@ -181,6 +181,7 @@ void __bb_init_func(void) { return; } static int thread_data[256]; +__attribute__((used)) struct { /* this is the kernel modify_ldt struct */ @@ -333,7 +334,7 @@ static inline int wld_prctl( int code, long arg ) #elif defined(__x86_64__) -void *thread_data[256]; +void __attribute__((used)) *thread_data[256]; /* * The _start function is the entry and exit point of this program @@ -422,7 +423,7 @@ SYSCALL_NOERR( wld_getegid, 108 /* SYS_getegid */ ); #elif defined(__aarch64__) -void *thread_data[256]; +void __attribute__((used)) *thread_data[256]; /* * The _start function is the entry and exit point of this program @@ -529,7 +530,7 @@ SYSCALL_NOERR( wld_getegid, 177 /* SYS_getegid */ ); #elif defined(__arm__) -void *thread_data[256]; +void __attribute__((used)) *thread_data[256]; /* * The _start function is the entry and exit point of this program @@ -1395,7 +1396,7 @@ static void set_process_name( int argc, char *argv[] ) * Load the binary and then its ELF interpreter. * Note, we assume that the binary is a dynamically linked ELF shared object. */ -void* wld_start( void **stack ) +void* __attribute__((used)) wld_start( void **stack ) { long i, *pargc; char **argv, **p; -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/7111
From: Konstantin Demin <rockdrilla(a)gmail.com> these changes improve building Wine with LTO. Signed-off-by: Konstantin Demin <rockdrilla(a)gmail.com> --- dlls/ntdll/unix/loader.c | 8 ++++---- dlls/ntdll/unix/signal_arm.c | 2 +- dlls/ntdll/unix/signal_arm64.c | 2 +- dlls/ntdll/unix/signal_i386.c | 2 +- dlls/ntdll/unix/signal_x86_64.c | 2 +- dlls/ntdll/unix/unix_private.h | 2 +- 6 files changed, 9 insertions(+), 9 deletions(-) diff --git a/dlls/ntdll/unix/loader.c b/dlls/ntdll/unix/loader.c index 14f7a551368..4a6287297a0 100644 --- a/dlls/ntdll/unix/loader.c +++ b/dlls/ntdll/unix/loader.c @@ -652,7 +652,7 @@ BOOLEAN KeAddSystemServiceTable( ULONG_PTR *funcs, ULONG_PTR *counters, ULONG li return TRUE; } -void trace_syscall( UINT id, ULONG_PTR *args, ULONG len ) +void __attribute__((used)) trace_syscall( UINT id, ULONG_PTR *args, ULONG len ) { UINT idx = (id >> 12) & 3, num = id & 0xfff; const char **names = syscall_names[idx]; @@ -671,7 +671,7 @@ void trace_syscall( UINT id, ULONG_PTR *args, ULONG len ) TRACE_(syscall)( ")\n" ); } -void trace_sysret( UINT id, ULONG_PTR retval ) +void __attribute__((used)) trace_sysret( UINT id, ULONG_PTR retval ) { UINT idx = (id >> 12) & 3, num = id & 0xfff; const char **names = syscall_names[idx]; @@ -682,7 +682,7 @@ void trace_sysret( UINT id, ULONG_PTR retval ) TRACE_(syscall)( "\1SysRet %04x() retval=%08lx\n", id, retval ); } -void trace_usercall( UINT id, ULONG_PTR *args, ULONG len ) +void __attribute__((used)) trace_usercall( UINT id, ULONG_PTR *args, ULONG len ) { if (usercall_names) TRACE_(syscall)("\1UserCall %s(%p,%u)\n", usercall_names[id], args, len ); @@ -690,7 +690,7 @@ void trace_usercall( UINT id, ULONG_PTR *args, ULONG len ) TRACE_(syscall)("\1UserCall %04x(%p,%u)\n", id, args, len ); } -void trace_userret( void *ret_ptr, ULONG len, NTSTATUS status, UINT id ) +void __attribute__((used)) trace_userret( void *ret_ptr, ULONG len, NTSTATUS status, UINT id ) { if (usercall_names) TRACE_(syscall)("\1UserRet %s(%p,%u) retval=%08x\n", usercall_names[id], ret_ptr, len, status ); diff --git a/dlls/ntdll/unix/signal_arm.c b/dlls/ntdll/unix/signal_arm.c index e429750925c..184131e88bb 100644 --- a/dlls/ntdll/unix/signal_arm.c +++ b/dlls/ntdll/unix/signal_arm.c @@ -1120,7 +1120,7 @@ void signal_init_process(void) /*********************************************************************** * init_syscall_frame */ -void init_syscall_frame( LPTHREAD_START_ROUTINE entry, void *arg, BOOL suspend, TEB *teb ) +void __attribute__((used)) init_syscall_frame( LPTHREAD_START_ROUTINE entry, void *arg, BOOL suspend, TEB *teb ) { struct syscall_frame *frame = ((struct ntdll_thread_data *)&teb->GdiTebBatch)->syscall_frame; CONTEXT *ctx, context = { CONTEXT_ALL }; diff --git a/dlls/ntdll/unix/signal_arm64.c b/dlls/ntdll/unix/signal_arm64.c index f5bd47d597a..d1ef9d2b10f 100644 --- a/dlls/ntdll/unix/signal_arm64.c +++ b/dlls/ntdll/unix/signal_arm64.c @@ -1446,7 +1446,7 @@ void syscall_dispatcher_return_slowpath(void) /*********************************************************************** * init_syscall_frame */ -void init_syscall_frame( LPTHREAD_START_ROUTINE entry, void *arg, BOOL suspend, TEB *teb ) +void __attribute__((used)) init_syscall_frame( LPTHREAD_START_ROUTINE entry, void *arg, BOOL suspend, TEB *teb ) { struct syscall_frame *frame = ((struct ntdll_thread_data *)&teb->GdiTebBatch)->syscall_frame; CONTEXT *ctx, context = { CONTEXT_ALL }; diff --git a/dlls/ntdll/unix/signal_i386.c b/dlls/ntdll/unix/signal_i386.c index db72829bd1f..7f1fdfc7466 100644 --- a/dlls/ntdll/unix/signal_i386.c +++ b/dlls/ntdll/unix/signal_i386.c @@ -2503,7 +2503,7 @@ void signal_init_process(void) /*********************************************************************** * init_syscall_frame */ -void init_syscall_frame( LPTHREAD_START_ROUTINE entry, void *arg, BOOL suspend, TEB *teb ) +void __attribute__((used)) init_syscall_frame( LPTHREAD_START_ROUTINE entry, void *arg, BOOL suspend, TEB *teb ) { struct x86_thread_data *thread_data = (struct x86_thread_data *)&teb->GdiTebBatch; struct syscall_frame *frame = ((struct ntdll_thread_data *)&teb->GdiTebBatch)->syscall_frame; diff --git a/dlls/ntdll/unix/signal_x86_64.c b/dlls/ntdll/unix/signal_x86_64.c index e2585f57d31..b822e269b57 100644 --- a/dlls/ntdll/unix/signal_x86_64.c +++ b/dlls/ntdll/unix/signal_x86_64.c @@ -2704,7 +2704,7 @@ void signal_init_process(void) /*********************************************************************** * init_syscall_frame */ -void init_syscall_frame( LPTHREAD_START_ROUTINE entry, void *arg, BOOL suspend, TEB *teb ) +void __attribute__((used)) init_syscall_frame( LPTHREAD_START_ROUTINE entry, void *arg, BOOL suspend, TEB *teb ) { struct amd64_thread_data *thread_data = (struct amd64_thread_data *)&teb->GdiTebBatch; struct syscall_frame *frame = ((struct ntdll_thread_data *)&teb->GdiTebBatch)->syscall_frame; diff --git a/dlls/ntdll/unix/unix_private.h b/dlls/ntdll/unix/unix_private.h index 974766b97a7..aa1b740ca33 100644 --- a/dlls/ntdll/unix/unix_private.h +++ b/dlls/ntdll/unix/unix_private.h @@ -264,7 +264,7 @@ extern void set_process_instrumentation_callback( void *callback ); extern void *get_cpu_area( USHORT machine ); extern void set_thread_id( TEB *teb, DWORD pid, DWORD tid ); extern NTSTATUS init_thread_stack( TEB *teb, ULONG_PTR limit, SIZE_T reserve_size, SIZE_T commit_size ); -extern void DECLSPEC_NORETURN abort_thread( int status ); +extern void DECLSPEC_NORETURN __attribute__((used)) abort_thread( int status ); extern void DECLSPEC_NORETURN abort_process( int status ); extern void DECLSPEC_NORETURN exit_process( int status ); extern void wait_suspend( CONTEXT *context ); -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/7111
From: Konstantin Demin <rockdrilla(a)gmail.com> Signed-off-by: Konstantin Demin <rockdrilla(a)gmail.com> --- tools/tools.h | 100 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 100 insertions(+) diff --git a/tools/tools.h b/tools/tools.h index f55bdd9c6b8..825e06e56f8 100644 --- a/tools/tools.h +++ b/tools/tools.h @@ -959,4 +959,104 @@ static inline struct strarray parse_options( int argc, char **argv, const char * #undef OPT_ERR } +static inline void append_lto_flags( struct strarray *args, int with_lto, int prefer_env ) +{ + if (with_lto < 0) return; + + if (prefer_env > 0) + { + const char *flags; + + if (with_lto > 0) + { + static int init_lto = 0; + static const char* flags_lto; + + if (!init_lto) + { + flags_lto = getenv( "WINE_LTO_FLAGS" ); + if (flags_lto) + flags_lto = (flags_lto[0]) ? xstrdup( flags_lto ) : NULL; + init_lto = 1; + } + flags = flags_lto; + } + else + { + static int init_lto_skip = 0; + static const char* flags_lto_skip; + + if (!init_lto_skip) + { + flags_lto_skip = getenv( "WINE_LTO_SKIP_FLAGS" ); + if (flags_lto_skip) + flags_lto_skip = (flags_lto_skip[0]) ? xstrdup( flags_lto_skip ) : NULL; + init_lto_skip = 1; + } + flags = flags_lto_skip; + } + + if (flags) { + strarray_addall( args, strarray_fromstring( flags, " " ) ); + return; + } + } + + strarray_add( args, (with_lto > 0) ? "-flto" : "-fno-lto" ); +} + +static inline int var_to_bool( const char *var ) +{ + if (!var) return 0; + if (!( var[0] )) return 0; + + switch (var[0]) + { + /* "1" */ + case '1': + if (!var[1]) return 1; + break; + + /* "[Tt]", "[Tt][Rr][Uu][Ee]" */ + case 'T': /* -fallthrough */ + case 't': + if (!var[1]) return 1; + + if (strlen( var ) != 4) break; + if ((var[1] != 'R') && (var[1] != 'r')) break; + if ((var[2] != 'U') && (var[2] != 'u')) break; + if ((var[3] != 'E') && (var[3] != 'e')) break; + return 1; + + break; + + /* "[Yy]", "[Yy][Ee][Ss]" */ + case 'Y': /* -fallthrough */ + case 'y': + if (!var[1]) return 1; + + if (strlen( var ) != 3) break; + if ((var[1] != 'E') && (var[1] != 'e')) break; + if ((var[2] != 'S') && (var[2] != 's')) break; + return 1; + + break; + } + + return 0; +} + +static inline int adjust_verbose_lto( int with_lto, int verbose ) +{ + const char* lto_debug; + + if (with_lto < 1) return verbose; + if (verbose > 0) return verbose; + + lto_debug = getenv( "WINE_LTO_DEBUG" ); + if (!lto_debug) return verbose; + + return var_to_bool( lto_debug ); +} + #endif /* __WINE_TOOLS_H */ -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/7111
From: Konstantin Demin <rockdrilla(a)gmail.com> Signed-off-by: Konstantin Demin <rockdrilla(a)gmail.com> --- tools/winebuild/build.h | 1 + tools/winebuild/import.c | 47 +++++++++++++++++++++++++++++++++++++--- tools/winebuild/main.c | 6 ++++- tools/winebuild/utils.c | 27 +++++++++++++++++++++-- 4 files changed, 75 insertions(+), 6 deletions(-) diff --git a/tools/winebuild/build.h b/tools/winebuild/build.h index 7bce8bdbb7a..6f97ca6e80a 100644 --- a/tools/winebuild/build.h +++ b/tools/winebuild/build.h @@ -362,6 +362,7 @@ extern void put_pword( unsigned int val ); extern int current_line; extern int UsePIC; +extern int UseLTO; extern int nb_errors; extern int display_warnings; extern int kill_at; diff --git a/tools/winebuild/import.c b/tools/winebuild/import.c index 827d88ee37f..42950f0fc8b 100644 --- a/tools/winebuild/import.c +++ b/tools/winebuild/import.c @@ -1243,11 +1243,31 @@ static const char *get_target_machine(void) /* build a library from the current asm files and any additional object files in argv */ void output_static_lib( const char *output_name, struct strarray files, int create ) { - struct strarray args; + struct strarray args = empty_strarray; if (!create || target.platform != PLATFORM_WINDOWS) { - args = find_tool( "ar", NULL ); + static int init_env_ar = 0; + static const char * env_ar; + + if (!init_env_ar) + { + if ((env_ar = getenv( "WINE_AR" ))) + { + /* duplicate string if non-empty; otherwise set to NULL */ + env_ar = (env_ar[0]) ? xstrdup( env_ar ) : NULL; + } + init_env_ar = 1; + } + if (env_ar) + { + const char * _cmd[2] = { env_ar, NULL }; + args = find_tool( "ar", _cmd ); + } + if (!args.count) + { + args = find_tool( "ar", NULL ); + } strarray_add( &args, create ? "rc" : "r" ); strarray_add( &args, output_name ); } @@ -1265,7 +1285,28 @@ void output_static_lib( const char *output_name, struct strarray files, int crea if (target.platform != PLATFORM_WINDOWS) { - struct strarray ranlib = find_tool( "ranlib", NULL ); + static int init_env_ranlib = 0; + static const char * env_ranlib; + struct strarray ranlib = empty_strarray; + + if (!init_env_ranlib) + { + if ((env_ranlib = getenv( "WINE_RANLIB" ))) + { + /* duplicate string if non-empty; otherwise set to NULL */ + env_ranlib = (env_ranlib[0]) ? xstrdup( env_ranlib ) : NULL; + } + init_env_ranlib = 1; + } + if (env_ranlib) + { + const char * _cmd[2] = { env_ranlib, NULL }; + ranlib = find_tool( "ranlib", _cmd ); + } + if (!ranlib.count) + { + ranlib = find_tool( "ranlib", NULL ); + } strarray_add( &ranlib, output_name ); spawn( ranlib ); } diff --git a/tools/winebuild/main.c b/tools/winebuild/main.c index 419a43ef5e3..8d00ebcc8ec 100644 --- a/tools/winebuild/main.c +++ b/tools/winebuild/main.c @@ -34,6 +34,7 @@ #include "build.h" int UsePIC = 0; +int UseLTO = -1; int nb_errors = 0; int display_warnings = 0; int native_arch = -1; @@ -186,7 +187,7 @@ static const char usage_str[] = " -e, --entry=FUNC Set the DLL entry point function (default: DllMain)\n" " -E, --export=FILE Export the symbols defined in the .spec or .def file\n" " --external-symbols Allow linking to external symbols\n" -" -f FLAGS Compiler flags (-fPIC and -fasynchronous-unwind-tables are supported)\n" +" -f FLAGS Compiler flags (-fPIC, -fasynchronous-unwind-tables and -flto are supported)\n" " -F, --filename=DLLFILE Set the DLL filename (default: from input file name)\n" " --fake-module Create a fake binary module\n" " -h, --help Display this help message\n" @@ -408,6 +409,8 @@ static void option_callback( int optc, char *optarg ) if (!strcmp( optarg, "PIC") || !strcmp( optarg, "pic")) UsePIC = 1; else if (!strcmp( optarg, "asynchronous-unwind-tables")) unwind_tables = 1; else if (!strcmp( optarg, "no-asynchronous-unwind-tables")) unwind_tables = 0; + else if (!strcmp( optarg, "lto" )) UseLTO = 1; + else if (!strcmp( optarg, "no-lto" )) UseLTO = 0; /* ignore all other flags */ break; case 'h': @@ -581,6 +584,7 @@ int main(int argc, char **argv) if (is_pe()) unwind_tables = 1; files = parse_options( argc, argv, short_options, long_options, 0, option_callback ); + verbose = adjust_verbose_lto( UseLTO, verbose ); atexit( cleanup ); /* make sure we remove the output file on exit */ diff --git a/tools/winebuild/utils.c b/tools/winebuild/utils.c index d5e05a60bbe..86719ac272d 100644 --- a/tools/winebuild/utils.c +++ b/tools/winebuild/utils.c @@ -303,6 +303,8 @@ struct strarray get_as_command(void) if (using_cc) { + /* disable LTO for assembly */ + append_lto_flags( &args, (UseLTO >= 0) ? 0 : -1, 1 /* prefer flags from env */ ); strarray_add( &args, "-xassembler" ); strarray_add( &args, "-c" ); if (force_pointer_size) @@ -345,6 +347,7 @@ struct strarray get_ld_command(void) } strarray_addall( &args, ld_command ); + append_lto_flags( &args, UseLTO, 1 /* prefer flags from env */ ); if (force_pointer_size) { @@ -376,8 +379,28 @@ const char *get_nm_command(void) { if (!nm_command.count) { - static const char * const commands[] = { "nm", "gnm", NULL }; - nm_command = find_tool( "nm", commands ); + static int init_env_nm = 0; + static const char * env_nm; + + if (!init_env_nm) + { + if ((env_nm = getenv( "WINE_NM" ))) + { + /* duplicate string if non-empty; otherwise set to NULL */ + env_nm = (env_nm[0]) ? xstrdup( env_nm ) : NULL; + } + init_env_nm = 1; + } + if (env_nm) + { + const char * _cmd[2] = { env_nm, NULL }; + nm_command = find_tool( "nm", _cmd ); + } + if (!nm_command.count) + { + static const char * const commands[] = { "nm", "gnm", NULL }; + nm_command = find_tool( "nm", commands ); + } } if (nm_command.count > 1) fatal_error( "multiple arguments in nm command not supported yet\n" ); -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/7111
From: Konstantin Demin <rockdrilla(a)gmail.com> Signed-off-by: Konstantin Demin <rockdrilla(a)gmail.com> --- tools/winegcc/winegcc.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/tools/winegcc/winegcc.c b/tools/winegcc/winegcc.c index 374f7542cf3..bde6958f6b5 100644 --- a/tools/winegcc/winegcc.c +++ b/tools/winegcc/winegcc.c @@ -176,6 +176,7 @@ static bool is_win16_app; static bool is_arm64x; static bool use_msvcrt; static bool use_pic = true; +static int use_lto = -1; /* tristate */ static bool use_build_id; static bool nostdinc; static bool nostdlib; @@ -504,6 +505,7 @@ static struct strarray get_link_args( const char *output_name ) unsigned int i; strarray_addall( &link_args, linker_args ); + append_lto_flags( &link_args, use_lto, 1 /* prefer flags from env */ ); if (verbose > 1) strarray_add( &flags, "-v" ); @@ -896,6 +898,11 @@ static void compile( struct strarray files, const char *output_name, int compile if (!is_pe) strarray_addall( &comp_args, get_compat_defines( gcc_defs )); + if ((processor == proc_cc) || (processor == proc_cxx)) + { + append_lto_flags( &comp_args, use_lto, 1 /* prefer flags from env */ ); + } + strarray_add(&comp_args, "-D__WINE__"); /* options we handle explicitly */ @@ -981,6 +988,7 @@ static struct strarray get_winebuild_args( const char *target ) strarray_add( &spec_args, binary ); if (verbose) strarray_add( &spec_args, "-v" ); if (keep_generated) strarray_add( &spec_args, "--save-temps" ); + append_lto_flags( &spec_args, use_lto, 0 /* generic LTO flags */ ); if (target) { strarray_add( &spec_args, "--target" ); @@ -1766,6 +1774,10 @@ int main(int argc, char **argv) use_pic = true; else if (!strcmp("-fno-PIC", args.str[i]) || !strcmp("-fno-pic", args.str[i])) use_pic = false; + else if (!strcmp( "-flto", args.str[i] )) + use_lto = 1; + else if (!strcmp( "-fno-lto", args.str[i] )) + use_lto = 0; break; case 'i': if (!strcmp( "-isysroot", args.str[i] )) isysroot = args.str[i + 1]; @@ -2052,6 +2064,7 @@ int main(int argc, char **argv) strarray_add( &file_args, args.str[i] ); } } + verbose = adjust_verbose_lto( use_lto, verbose ); if (target_alias && !parse_target( target_alias, &target )) error( "Invalid target specification '%s'\n", target_alias ); -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/7111
From: Konstantin Demin <rockdrilla(a)gmail.com> Signed-off-by: Konstantin Demin <rockdrilla(a)gmail.com> --- tools/makedep.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) diff --git a/tools/makedep.c b/tools/makedep.c index 9e4e147e4d9..db763ace4ae 100644 --- a/tools/makedep.c +++ b/tools/makedep.c @@ -257,6 +257,7 @@ static const char *temp_file_name; static char cwd[PATH_MAX]; static int compile_commands_mode; static int silent_rules; +static int with_lto = 0; static int input_line; static int output_column; static FILE *output_file; @@ -285,6 +286,10 @@ static void fatal_perror( const char *msg, ... ) __attribute__ ((__format__ (__p static void output( const char *format, ... ) __attribute__ ((__format__ (__printf__, 1, 2))); static char *strmake( const char* fmt, ... ) __attribute__ ((__format__ (__printf__, 1, 2))); +static void output_lto_flags_source( struct makefile *make, struct incl_file *source, unsigned int arch, + int prefer_env ); +static void output_lto_flags_target( struct makefile *make, unsigned int arch, int prefer_env ); + /******************************************************************* * fatal_error */ @@ -2508,6 +2513,7 @@ static void output_winegcc_command( struct makefile *make, unsigned int arch ) output_filename( "--winebuild" ); output_filename( winebuild ); } + output_lto_flags_target( make, arch, 0 /* generic LTO flags */ ); output_filenames( target_flags[arch] ); if (native_archs[arch] && !make->disabled[native_archs[arch]]) output_filenames( hybrid_target_flags[arch] ); @@ -3334,6 +3340,7 @@ static void output_source_one_arch( struct makefile *make, struct incl_file *sou output_filenames( defines ); output_filenames( cflags ); output_filename( var_cflags ); + output_lto_flags_source( make, source, arch, 1 /* prefer flags from env */ ); output( "\n" ); if (make->testdll && strendswith( source->name, ".c" ) && @@ -3607,6 +3614,7 @@ static void output_import_lib( struct makefile *make, unsigned int arch ) output( "\n" ); output( "\t%s%s -w --implib -o $@", cmd_prefix( "BUILD" ), winebuild ); if (!delay_load_flags[arch]) output_filename( "--without-dlltool" ); + output_lto_flags_target( make, arch, 0 /* generic LTO flags */ ); output_filenames( target_flags[hybrid_arch ? hybrid_arch : arch] ); if (make->is_win16) output_filename( "-m16" ); if (hybrid_arch) output_filenames( hybrid_target_flags[hybrid_arch] ); @@ -3641,6 +3649,7 @@ static void output_unix_lib( struct makefile *make ) output( "\n" ); output( "\t%s$(CC) -o $@", cmd_prefix( "CCLD" )); output_filenames( get_expanded_make_var_array( make, "UNIXLDFLAGS" )); + output_lto_flags_target( make, arch, 1 /* prefer flags from env */ ); output_filenames_obj_dir( make, make->unixobj_files ); output_filenames( unix_libs ); output_filename( "$(LDFLAGS)" ); @@ -3668,6 +3677,7 @@ static void output_static_lib( struct makefile *make, unsigned int arch ) output( "\n" ); output( "\t%s%s -w --staticlib -o $@", cmd_prefix( "BUILD" ), winebuild ); output_filenames( target_flags[hybrid_arch ? hybrid_arch : arch] ); + output_lto_flags_target( make, arch, 0 /* generic LTO flags */ ); output_filenames_obj_dir( make, make->object_files[arch] ); if (hybrid_arch) output_filenames_obj_dir( make, make->object_files[hybrid_arch] ); if (!arch) output_filenames_obj_dir( make, make->unixobj_files ); @@ -3790,6 +3800,7 @@ static void output_programs( struct makefile *make ) output_filenames( deps ); output( "\n" ); output( "\t%s$(CC) -o $@", cmd_prefix( "CCLD" )); + output_lto_flags_target( make, arch, 1 /* prefer flags from env */ ); output_filenames_obj_dir( make, objs ); output_filenames( all_libs ); output_filename( "$(LDFLAGS)" ); @@ -4631,6 +4642,9 @@ static int parse_option( const char *opt ) case 'S': silent_rules = 1; break; + case 'L': + with_lto = 1; + break; default: fprintf( stderr, "Unknown option '%s'\n%s", opt, Usage ); exit(1); @@ -4650,6 +4664,47 @@ static unsigned int find_pe_arch( const char *arch ) } +/******************************************************************* + * output_lto_flags + */ +static void output_lto_flags( int use_lto, int prefer_env ) +{ + struct strarray lto_flags = empty_strarray; + append_lto_flags( <o_flags, use_lto, prefer_env ); + output_filenames( lto_flags ); +} + + +/******************************************************************* + * output_lto_flags_source + */ +static void output_lto_flags_source( struct makefile *make, struct incl_file *source, unsigned int arch, + int prefer_env ) +{ + (void) arch; /* mark as used */ + + if (!with_lto) return; + if (!make) return; + if (!source) return; + + output_lto_flags( with_lto, prefer_env ); +} + + +/******************************************************************* + * output_lto_flags_target + */ +static void output_lto_flags_target( struct makefile *make, unsigned int arch, int prefer_env ) +{ + (void) arch; /* mark as used */ + + if (!with_lto) return; + if (!make) return; + + output_lto_flags( with_lto, prefer_env ); +} + + /******************************************************************* * main */ -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/7111
From: Konstantin Demin <rockdrilla(a)gmail.com> Signed-off-by: Konstantin Demin <rockdrilla(a)gmail.com> --- configure | 19 +++++++++++++++++++ configure.ac | 12 ++++++++++++ 2 files changed, 31 insertions(+) diff --git a/configure b/configure index 3a21302782d..83071601258 100755 --- a/configure +++ b/configure @@ -922,6 +922,7 @@ enable_maintainer_mode enable_sast enable_silent_rules enable_werror +enable_lto with_alsa with_capi with_coreaudio @@ -2531,6 +2532,7 @@ Optional Features: Clang --enable-silent-rules use silent build rules (override: "make V=1") --enable-werror treat compilation warnings as errors + --enable-lto build with LTO (EXPERIMENTAL) --disable-largefile omit support for large files --disable-year2038 don't support timestamps after 2038 @@ -4350,6 +4352,12 @@ then : enableval=$enable_werror; fi +# Check whether --enable-lto was given. +if test ${enable_lto+y} +then : + enableval=$enable_lto; +fi + # Check whether --with-alsa was given. @@ -7418,6 +7426,11 @@ do esac done +if test "x$enable_lto" = xyes +then + as_fn_append EXTRACFLAGS " -D__WINE_LTO_BUILD" +fi + for wine_arch in $cross_archs $extra_arch do case $wine_arch in @@ -7716,6 +7729,11 @@ fi eval LDFLAGS=\$${wine_arch}_LDFLAGS eval "${wine_arch}_EXTRACFLAGS=\"-D__WINE_PE_BUILD -Wall\"" + if test "x$enable_lto" = xyes + then + as_fn_append ${wine_arch}_EXTRACFLAGS " -D__WINE_LTO_BUILD" + fi + target="" set x $CC shift @@ -22151,6 +22169,7 @@ printf %s "creating Makefile rules..." >&6 makedep_flags=" -C" test "x$enable_silent_rules" = xyes && makedep_flags="$makedep_flags -S" +test "x$enable_lto" = xyes && makedep_flags="$makedep_flags -L" wine_srcdir= test "$srcdir" = . || wine_srcdir="$srcdir/" diff --git a/configure.ac b/configure.ac index e792e45d6d4..32a9e802443 100644 --- a/configure.ac +++ b/configure.ac @@ -24,6 +24,7 @@ AC_ARG_ENABLE(maintainer-mode, AS_HELP_STRING([--enable-maintainer-mode],[enable AC_ARG_ENABLE(sast, AS_HELP_STRING([--enable-sast],[enable static application security testing using Clang])) AC_ARG_ENABLE(silent-rules, AS_HELP_STRING([--enable-silent-rules],[use silent build rules (override: "make V=1")])) AC_ARG_ENABLE(werror, AS_HELP_STRING([--enable-werror],[treat compilation warnings as errors])) +AC_ARG_ENABLE(lto, AS_HELP_STRING([--enable-lto],[build with LTO (EXPERIMENTAL)])) AC_ARG_WITH(alsa, AS_HELP_STRING([--without-alsa],[do not use the Alsa sound support])) AC_ARG_WITH(capi, AS_HELP_STRING([--without-capi],[do not use CAPI (ISDN support)])) @@ -398,6 +399,11 @@ do esac done +if test "x$enable_lto" = xyes +then + AS_VAR_APPEND([EXTRACFLAGS],[" -D__WINE_LTO_BUILD"]) +fi + for wine_arch in $cross_archs $extra_arch do case $wine_arch in @@ -440,6 +446,11 @@ do AS_VAR_COPY([LDFLAGS],[${wine_arch}_LDFLAGS]) AS_VAR_SET([${wine_arch}_EXTRACFLAGS],["-D__WINE_PE_BUILD -Wall"]) + if test "x$enable_lto" = xyes + then + AS_VAR_APPEND([${wine_arch}_EXTRACFLAGS],[" -D__WINE_LTO_BUILD"]) + fi + target="" set x $CC shift @@ -2429,6 +2440,7 @@ AS_ECHO_N("creating Makefile rules...") >&AS_MESSAGE_FD makedep_flags=" -C" test "x$enable_silent_rules" = xyes && makedep_flags="$makedep_flags -S" +test "x$enable_lto" = xyes && makedep_flags="$makedep_flags -L" wine_srcdir= test "$srcdir" = . || wine_srcdir="$srcdir/" -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/7111
From: Konstantin Demin <rockdrilla(a)gmail.com> Signed-off-by: Konstantin Demin <rockdrilla(a)gmail.com> --- tools/makedep.c | 122 ++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 118 insertions(+), 4 deletions(-) diff --git a/tools/makedep.c b/tools/makedep.c index db763ace4ae..cdf0492fb37 100644 --- a/tools/makedep.c +++ b/tools/makedep.c @@ -188,6 +188,7 @@ static struct strarray disabled_dirs[MAX_ARCHS]; static unsigned int native_archs[MAX_ARCHS]; static unsigned int hybrid_archs[MAX_ARCHS]; static struct strarray hybrid_target_flags[MAX_ARCHS]; +static struct strarray global_lto_skip[MAX_ARCHS]; struct makefile { @@ -220,6 +221,8 @@ struct makefile int is_win16; int is_exe; int disabled[MAX_ARCHS]; + int lto_skip[MAX_ARCHS]; + struct strarray lto_skip_src[MAX_ARCHS]; /* values generated at output time */ struct strarray in_files; @@ -4592,6 +4595,25 @@ static void load_sources( struct makefile *make ) for (i = 0; i < make->delayimports.count; i++) strarray_add_uniq( &delay_import_libs, get_base_name( make->delayimports.str[i] )); + + if (with_lto) + { + for (arch = 0; arch < archs.count; arch++) + { + const char * lto_skip; + + memset( &make->lto_skip_src[arch], 0, sizeof(struct strarray) ); + + lto_skip = get_expanded_arch_var( make, "LTO_SKIP", arch ); + make->lto_skip[arch] = var_to_bool( lto_skip ); + /* no need to parse source skiplist if target is marked as non-LTO */ + if (make->lto_skip[arch]) continue; + + value = get_expanded_arch_var_array( make, "LTO_SKIP_SRC", arch ); + for (i = 0; i < value.count; i++) + strarray_add( &make->lto_skip_src[arch], xstrdup( value.str[i] )); + } + } } @@ -4675,19 +4697,109 @@ static void output_lto_flags( int use_lto, int prefer_env ) } +/******************************************************************* + * parse_global_lto_skip_lists + */ +static void parse_global_lto_skip_lists( void ) +{ + unsigned int arch; + char *buffer; + FILE *file; + + for (arch = 0; arch < archs.count; arch++) + { + memset( &global_lto_skip[arch], 0, sizeof(struct strarray) ); + + if (arch) + input_file_name = root_src_dir_path(strmake( "tools/lto-skip.%s.list", archs.str[arch] )); + else + input_file_name = root_src_dir_path( "tools/lto-skip.list" ); + /* skip nonexistent files */ + if (!(file = fopen( input_file_name, "r" ))) + { + input_file_name = NULL; + continue; + } + input_line = 0; + + while ((buffer = get_line( file ))) + { + if (strlen(buffer) == 0) continue; /* empty line */ + if (*buffer == '#') continue; /* comment */ + strarray_add( &global_lto_skip[arch], xstrdup( buffer )); + } + (void) fclose( file ); + input_file_name = NULL; + input_line = 0; + } +} + + +/******************************************************************* + * is_lto_enabled_source + */ +static int is_lto_enabled_source( struct makefile *make, struct incl_file *source, unsigned int arch ) +{ + if (!with_lto) return 0; + if (!make) return 0; + if (!source) return 0; + + /* target config: any arch */ + if (strarray_exists( make->lto_skip_src[0], source->name )) + return 0; + + if (arch) + { + /* target config: specific arch */ + if (strarray_exists( make->lto_skip_src[arch], source->name )) + return 0; + + /* global config: specific arch */ + if (strarray_exists( global_lto_skip[arch], source->filename )) + return 0; + } + + /* global config: any arch */ + if (strarray_exists( global_lto_skip[0], source->filename )) + return 0; + + return 1; +} + + +/******************************************************************* + * is_lto_enabled_target + */ +static int is_lto_enabled_target( struct makefile *make, unsigned int arch ) +{ + if (!with_lto) return 0; + if (!make) return 0; + + /* any arch */ + if (make->lto_skip[0]) return 0; + + /* specific arch */ + if (arch && make->lto_skip[arch]) + return 0; + + return 1; +} + + /******************************************************************* * output_lto_flags_source */ static void output_lto_flags_source( struct makefile *make, struct incl_file *source, unsigned int arch, int prefer_env ) { - (void) arch; /* mark as used */ + int use_lto = 0; if (!with_lto) return; if (!make) return; if (!source) return; - output_lto_flags( with_lto, prefer_env ); + use_lto = is_lto_enabled_target( make, arch ) && is_lto_enabled_source( make, source, arch ); + output_lto_flags( use_lto, prefer_env ); } @@ -4696,12 +4808,13 @@ static void output_lto_flags_source( struct makefile *make, struct incl_file *so */ static void output_lto_flags_target( struct makefile *make, unsigned int arch, int prefer_env ) { - (void) arch; /* mark as used */ + int use_lto = 0; if (!with_lto) return; if (!make) return; - output_lto_flags( with_lto, prefer_env ); + use_lto = is_lto_enabled_target( make, arch ); + output_lto_flags( use_lto, prefer_env ); } @@ -4843,6 +4956,7 @@ int main( int argc, char *argv[] ) for (i = 0; i < subdirs.count; i++) submakes[i] = parse_makefile( subdirs.str[i] ); + if (with_lto) parse_global_lto_skip_lists(); load_sources( top_makefile ); load_sources( include_makefile ); for (i = 0; i < subdirs.count; i++) -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/7111
From: Konstantin Demin <rockdrilla(a)gmail.com> Signed-off-by: Konstantin Demin <rockdrilla(a)gmail.com> --- tools/lto-skip.arm.list | 3 +++ tools/lto-skip.i386.list | 21 +++++++++++++++++++++ tools/lto-skip.list | 2 ++ tools/lto-skip.x86_64.list | 6 ++++++ 4 files changed, 32 insertions(+) create mode 100644 tools/lto-skip.arm.list create mode 100644 tools/lto-skip.i386.list create mode 100644 tools/lto-skip.list create mode 100644 tools/lto-skip.x86_64.list diff --git a/tools/lto-skip.arm.list b/tools/lto-skip.arm.list new file mode 100644 index 00000000000..8ba52bcae81 --- /dev/null +++ b/tools/lto-skip.arm.list @@ -0,0 +1,3 @@ +# __wine_setjmpex +# __wine_longjmp +dlls/winecrt0/setjmp.c diff --git a/tools/lto-skip.i386.list b/tools/lto-skip.i386.list new file mode 100644 index 00000000000..74c66af6ec4 --- /dev/null +++ b/tools/lto-skip.i386.list @@ -0,0 +1,21 @@ +# __wine_setjmpex +# __wine_longjmp +dlls/winecrt0/setjmp.c + +# RtlUshortByteSwap(a)4 +# RtlUlongByteSwap(a)4 +# RtlUlonglongByteSwap(a)8 +dlls/ntdll/rtl.c + +# InterlockedCompareExchange(a)12 +# InterlockedExchange(a)8 +# InterlockedExchangeAdd(a)8 +# InterlockedIncrement(a)4 +# InterlockedDecrement(a)4 +dlls/kernel32/sync.c + +# ExitProcess(a)4 +dlls/kernel32/process.c + +# _ftol +dlls/msvcrt/math.c diff --git a/tools/lto-skip.list b/tools/lto-skip.list new file mode 100644 index 00000000000..907c7e40788 --- /dev/null +++ b/tools/lto-skip.list @@ -0,0 +1,2 @@ +# _chkstk (i386) / __chkstk (others) +dlls/ntoskrnl.exe/ntoskrnl.c diff --git a/tools/lto-skip.x86_64.list b/tools/lto-skip.x86_64.list new file mode 100644 index 00000000000..1afb09c2b89 --- /dev/null +++ b/tools/lto-skip.x86_64.list @@ -0,0 +1,6 @@ +# __wine_setjmpex +# __wine_longjmp +dlls/winecrt0/setjmp.c + +# GetProcAddress +dlls/kernel32/module.c -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/7111
I've adopted and refreshed changes from https://gitlab.winehq.org/wine/wine/-/merge_requests/7119 with many thanks to William Horvath. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/7111#note_114635
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Konstantin Demin (＠rockdrilla)