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check_interfaces.lua
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-- imports
import("core.base.option")
import("async.runjobs", {try = true})
if not runjobs then
import("private.async.runjobs") -- it has been moved to public above 2.8.3
end
local _check_tasks = {}
-- get function name
--
-- sigsetjmp
-- sigsetjmp((void*)0, 0)
-- sigsetjmp{sigsetjmp((void*)0, 0);}
-- sigsetjmp{int a = 0; sigsetjmp((void*)a, a);}
--
function _get_function_name(func)
local name, code = string.match(func, "(.+){(.+)}")
if code == nil then
local pos = func:find("%(")
if pos then
name = func:sub(1, pos - 1)
else
name = func
end
end
return name:trim()
end
-- get the c flags for suppressing warnings
function _get_cflags_for_suppress_warnings(target)
local cflags = target:data("_check_interfaces.cflags")
if cflags == nil then
if target:has_tool("cc", "cl") then
cflags = "-D_CRT_SECURE_NO_WARNINGS"
elseif target:has_tool("cc", "gcc", "gxx", "clang", "clangxx") then
cflags = "-Wno-error=unused-variable"
end
target:data_set("_check_interfaces.cflags", cflags or false)
end
return cflags or nil
end
-- check c functions in the given module
function _check_module_cfuncs(target, module, includes, ...)
local cflags = _get_cflags_for_suppress_warnings(target)
for _, func in ipairs({...}) do
table.insert(_check_tasks, function ()
local funcname = _get_function_name(func)
local checkname = module .. "_" .. funcname
local ok = false
if target:has_cfuncs(func, {name = checkname, includes = includes, configs = {cflags = cflags}}) then
target:set("configvar", ("TB_CONFIG_%s_HAVE_%s"):format(module:upper(), funcname:upper()), 1)
ok = true
end
cprint("checking for %s ... %s", checkname,
ok and "${color.success}${text.success}" or "${color.nothing}${text.nothing}")
end)
end
end
-- check c snippet in the given module
function _check_module_csnippet(target, module, includes, name, snippet)
local cflags = _get_cflags_for_suppress_warnings(target)
table.insert(_check_tasks, function ()
local checkname = module .. "_" .. name
local ok = false
if target:check_csnippets({[checkname] = snippet}, {includes = includes, configs = {cflags = cflags}}) then
target:set("configvar", ("TB_CONFIG_%s_HAVE_%s"):format(module:upper(), name:upper()), 1)
ok = true
end
cprint("checking for %s ... %s", checkname,
ok and "${color.success}${text.success}" or "${color.nothing}${text.nothing}")
end)
end
-- check c keyword
function _check_keyword_csnippet(target, name, varname, snippet, configs)
local cflags = _get_cflags_for_suppress_warnings(target)
table.insert(_check_tasks, function ()
local checkname = name
local ok = false
if target:check_csnippets({[checkname] = snippet}, {configs = table.join({cflags = cflags}, configs)}) then
target:set("configvar", varname, 1)
ok = true
end
cprint("checking for %s ... %s", checkname,
ok and "${color.success}${text.success}" or "${color.nothing}${text.nothing}")
end)
end
function _check_interfaces(target)
-- check the interfaces for libc
_check_module_cfuncs(target, "libc", {"string.h", "stdlib.h"},
"memcpy",
"memset",
"memmove",
"memcmp",
"memmem",
"strcat",
"strncat",
"strcpy",
"strncpy",
"strlcpy",
"strlen",
"strnlen",
"strstr",
"strchr",
"strrchr",
"strcasestr",
"strcmp",
"strcasecmp",
"strncmp",
"strncasecmp")
_check_module_cfuncs(target, "libc", {"wchar.h", "stdlib.h"},
"wcscat",
"wcsncat",
"wcscpy",
"wcsncpy",
"wcslcpy",
"wcslen",
"wcsnlen",
"wcsstr",
"wcscasestr",
"wcscmp",
"wcscasecmp",
"wcsncmp",
"wcsncasecmp",
"wcstombs",
"mbstowcs")
_check_module_cfuncs(target, "libc", "time.h", "gmtime", "mktime", "localtime")
_check_module_cfuncs(target, "libc", "sys/time.h", "gettimeofday")
_check_module_cfuncs(target, "libc", {"signal.h", "setjmp.h"}, "signal", "setjmp", "sigsetjmp{sigjmp_buf buf; sigsetjmp(buf, 0);}", "kill")
_check_module_cfuncs(target, "libc", "execinfo.h", "backtrace")
_check_module_cfuncs(target, "libc", "locale.h", "setlocale")
_check_module_cfuncs(target, "libc", "stdio.h", "fputs", "fgets", "fgetc", "ungetc", "fputc", "fread", "fwrite")
_check_module_cfuncs(target, "libc", "stdlib.h", "srandom", "random")
-- add the interfaces for libm
_check_module_cfuncs(target, "libm", "math.h",
"sincos",
"sincosf",
"log2",
"log2f",
"sqrt",
"sqrtf",
"acos",
"acosf",
"asin",
"asinf",
"pow",
"powf",
"fmod",
"fmodf",
"tan",
"tanf",
"atan",
"atanf",
"atan2",
"atan2f",
"cos",
"cosf",
"sin",
"sinf",
"exp",
"expf")
-- add the interfaces for posix
if not target:is_plat("windows") then
_check_module_cfuncs(target, "posix", {"poll.h", "sys/socket.h"}, "poll")
_check_module_cfuncs(target, "posix", {"sys/select.h"}, "select")
_check_module_cfuncs(target, "posix", "pthread.h",
"pthread_mutex_init",
"pthread_create",
"pthread_setspecific",
"pthread_getspecific",
"pthread_key_create",
"pthread_key_delete",
"pthread_setaffinity_np") -- need _GNU_SOURCE
_check_module_cfuncs(target, "posix", {"sys/socket.h", "fcntl.h"}, "socket")
_check_module_cfuncs(target, "posix", "dirent.h", "opendir")
_check_module_cfuncs(target, "posix", "dlfcn.h", "dlopen")
_check_module_cfuncs(target, "posix", {"sys/stat.h", "fcntl.h"}, "open", "stat64", "lstat64")
_check_module_cfuncs(target, "posix", "unistd.h", "gethostname")
_check_module_cfuncs(target, "posix", {"ifaddrs.h", "net/if_dl.h"}, "getifaddrs")
_check_module_cfuncs(target, "posix", "unistd.h", "getpagesize", "sysconf")
_check_module_cfuncs(target, "posix", "sched.h", "sched_yield", "sched_setaffinity") -- need _GNU_SOURCE
_check_module_cfuncs(target, "posix", "regex.h", "regcomp", "regexec")
_check_module_cfuncs(target, "posix", "sys/uio.h", "readv", "writev", "preadv", "pwritev")
_check_module_cfuncs(target, "posix", "unistd.h", "pread64", "pwrite64")
_check_module_cfuncs(target, "posix", "unistd.h", "fdatasync")
_check_module_cfuncs(target, "posix", "copyfile.h", "copyfile")
_check_module_cfuncs(target, "posix", "sys/sendfile.h", "sendfile")
_check_module_cfuncs(target, "posix", "sys/epoll.h", "epoll_create", "epoll_wait")
_check_module_cfuncs(target, "posix", "unistd.h", "execvp", "execvpe", "fork", "vfork")
_check_module_cfuncs(target, "posix", "sys/wait.h", "waitpid")
_check_module_cfuncs(target, "posix", "unistd.h", "getdtablesize")
_check_module_cfuncs(target, "posix", "sys/resource.h", "getrlimit")
_check_module_cfuncs(target, "posix", "netdb.h", "getaddrinfo", "getnameinfo", "gethostbyname", "gethostbyaddr")
_check_module_cfuncs(target, "posix", "fcntl.h", "fcntl")
_check_module_cfuncs(target, "posix", "unistd.h", "pipe", "pipe2")
_check_module_cfuncs(target, "posix", "sys/stat.h", "mkfifo")
_check_module_cfuncs(target, "posix", "sys/mman.h", "mmap")
_check_module_cfuncs(target, "posix", "sys/stat.h", "futimens", "utimensat")
end
if not target:is_plat("windows", "wasm") then
_check_module_cfuncs(target, "posix", "spawn.h", "posix_spawnp", "posix_spawn_file_actions_addchdir_np")
_check_module_cfuncs(target, "posix", "semaphore.h", "sem_init")
end
-- add the interfaces for windows/msvc
if target:is_plat("windows") then
for _, mo in ipairs({"", "_nf", "_acq", "_rel"}) do
_check_module_csnippet(target, "windows", "windows.h", "_InterlockedExchange" .. mo, format([[
LONG _InterlockedExchange%s(LONG volatile* Destination, LONG Value);
#pragma intrinsic(_InterlockedExchange%s)
void test() {
_InterlockedExchange%s(0, 0);
}]], mo, mo, mo))
_check_module_csnippet(target, "windows", "windows.h", "_InterlockedExchange8" .. mo, format([[
CHAR _InterlockedExchange8%s(CHAR volatile* Destination, CHAR Value);
#pragma intrinsic(_InterlockedExchange8%s)
void test() {
_InterlockedExchange8%s(0, 0);
}]], mo, mo, mo))
_check_module_csnippet(target, "windows", "windows.h", "_InterlockedOr8" .. mo, format([[
CHAR _InterlockedOr8%s(CHAR volatile* Destination, CHAR Value);
#pragma intrinsic(_InterlockedOr8%s)
void test() {
_InterlockedOr8%s(0, 0);
}]], mo, mo, mo))
_check_module_csnippet(target, "windows", "windows.h", "_InterlockedExchangeAdd" .. mo, format([[
LONG _InterlockedExchangeAdd%s(LONG volatile* Destination, LONG Value);
#pragma intrinsic(_InterlockedExchangeAdd%s)
void test() {
_InterlockedExchangeAdd%s(0, 0);
}]], mo, mo, mo))
_check_module_csnippet(target, "windows", "windows.h", "_InterlockedExchangeAdd64" .. mo, format([[
__int64 _InterlockedExchangeAdd64%s(__int64 volatile* Destination, __int64 Value);
#pragma intrinsic(_InterlockedExchangeAdd64%s)
void test() {
_InterlockedExchangeAdd64%s(0, 0);
}]], mo, mo, mo))
_check_module_csnippet(target, "windows", "windows.h", "_InterlockedCompareExchange" .. mo, format([[
LONG _InterlockedCompareExchange%s(LONG volatile* Destination, LONG Exchange, LONG Comperand);
#pragma intrinsic(_InterlockedCompareExchange%s)
void test() {
_InterlockedCompareExchange%s(0, 0, 0);
}]], mo, mo, mo))
_check_module_csnippet(target, "windows", "windows.h", "_InterlockedCompareExchange64" .. mo, format([[
__int64 _InterlockedCompareExchange64%s(__int64 volatile* Destination, __int64 Exchange, __int64 Comperand);
#pragma intrinsic(_InterlockedCompareExchange64%s)
void test() {
_InterlockedCompareExchange64%s(0, 0, 0);
}]], mo, mo, mo))
end
end
-- add the interfaces for bsd
if not target:is_plat("windows") then
_check_module_cfuncs(target, "bsd", {"sys/file.h", "fcntl.h"}, "flock")
end
-- add the interfaces for systemv
if not target:is_plat("windows", "wasm") then
_check_module_cfuncs(target, "systemv", {"sys/sem.h", "sys/ipc.h"}, "semget", "semtimedop")
end
-- add the interfaces for linux
if target:is_plat("linux", "android") then
_check_module_cfuncs(target, "linux", {"sys/inotify.h"}, "inotify_init")
_check_keyword_csnippet(target, "linux_ifaddrs", "TB_CONFIG_LINUX_HAVE_IFADDRS", "#include <linux/if.h>\n#include <linux/netlink.h>")
end
-- add the interfaces for valgrind
_check_module_cfuncs(target, "valgrind", "valgrind/valgrind.h", "VALGRIND_STACK_REGISTER(0, 0)")
-- check __thread keyword
_check_keyword_csnippet(target, "keyword_thread", "TB_CONFIG_KEYWORD_HAVE__thread", "__thread int a = 0;", {links = "pthread"})
_check_keyword_csnippet(target, "keyword_thread_local", "TB_CONFIG_KEYWORD_HAVE_Thread_local", "_Thread_local int a = 0;", {links = "pthread"})
-- check anonymous union feature
_check_keyword_csnippet(target, "feature_anonymous_union", "TB_CONFIG_FEATURE_HAVE_ANONYMOUS_UNION", "void test() { struct __st { union {int dummy;};} a; a.dummy = 1; }")
-- do check
local jobs = option.get("jobs") or os.default_njob()
runjobs("check_interfaces", function (index)
_check_tasks[index]()
end, {total = #_check_tasks, comax = jobs})
end
function main(target, opt)
if not opt or (opt and opt.recheck) then
_check_interfaces(target)
end
end