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Merge pull request #2139 from emekoi/lib-on-mingw

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implement linking to libc on mingw
This commit is contained in:
Andrew Kelley
2019-04-29 13:16:41 -04:00
committed by GitHub
parent 9902b604cb 6057513cc7
commit d3c88a8949
3 changed files with 196 additions and 100 deletions
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34
src/libc_installation.cpp
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@@ -14,6 +14,7 @@ static const char *zig_libc_keys[] = {
"include_dir",
"sys_include_dir",
"crt_dir",
"static_crt_dir",
"msvc_lib_dir",
"kernel32_lib_dir",
};
@@ -34,6 +35,7 @@ static void zig_libc_init_empty(ZigLibCInstallation *libc) {
buf_init_from_str(&libc->include_dir, "");
buf_init_from_str(&libc->sys_include_dir, "");
buf_init_from_str(&libc->crt_dir, "");
buf_init_from_str(&libc->static_crt_dir, "");
buf_init_from_str(&libc->msvc_lib_dir, "");
buf_init_from_str(&libc->kernel32_lib_dir, "");
}
@@ -74,8 +76,9 @@ Error zig_libc_parse(ZigLibCInstallation *libc, Buf *libc_file, const ZigTarget
match = match || zig_libc_match_key(name, value, found_keys, 0, &libc->include_dir);
match = match || zig_libc_match_key(name, value, found_keys, 1, &libc->sys_include_dir);
match = match || zig_libc_match_key(name, value, found_keys, 2, &libc->crt_dir);
match = match || zig_libc_match_key(name, value, found_keys, 3, &libc->msvc_lib_dir);
match = match || zig_libc_match_key(name, value, found_keys, 4, &libc->kernel32_lib_dir);
match = match || zig_libc_match_key(name, value, found_keys, 3, &libc->static_crt_dir);
match = match || zig_libc_match_key(name, value, found_keys, 4, &libc->msvc_lib_dir);
match = match || zig_libc_match_key(name, value, found_keys, 5, &libc->kernel32_lib_dir);
}
for (size_t i = 0; i < zig_libc_keys_len; i += 1) {
@@ -110,6 +113,15 @@ Error zig_libc_parse(ZigLibCInstallation *libc, Buf *libc_file, const ZigTarget
}
}
if (buf_len(&libc->static_crt_dir) == 0) {
if (target->os == OsWindows && target_abi_is_gnu(target->abi)) {
if (verbose) {
fprintf(stderr, "static_crt_dir may not be empty for %s\n", target_os_name(target->os));
}
return ErrorSemanticAnalyzeFail;
}
}
if (buf_len(&libc->msvc_lib_dir) == 0) {
if (target->os == OsWindows && !target_abi_is_gnu(target->abi)) {
if (verbose) {
@@ -310,6 +322,10 @@ static Error zig_libc_find_native_crt_dir_posix(ZigLibCInstallation *self, bool
}
#endif
static Error zig_libc_find_native_static_crt_dir_posix(ZigLibCInstallation *self, bool verbose) {
return zig_libc_cc_print_file_name("crtbegin.o", &self->static_crt_dir, true, verbose);
}
#if defined(ZIG_OS_WINDOWS)
static Error zig_libc_find_native_include_dir_windows(ZigLibCInstallation *self, ZigWindowsSDK *sdk, bool verbose) {
Error err;
@@ -322,7 +338,7 @@ static Error zig_libc_find_native_include_dir_windows(ZigLibCInstallation *self,
return ErrorNone;
}
static Error zig_libc_find_crt_dir_windows(ZigLibCInstallation *self, ZigWindowsSDK *sdk, ZigTarget *target,
static Error zig_libc_find_native_crt_dir_windows(ZigLibCInstallation *self, ZigWindowsSDK *sdk, ZigTarget *target,
bool verbose)
{
Error err;
@@ -398,11 +414,16 @@ void zig_libc_render(ZigLibCInstallation *self, FILE *file) {
"# On POSIX it's the directory that includes `sys/errno.h`.\n"
"sys_include_dir=%s\n"
"\n"
"# The directory that contains `crt1.o`.\n"
"# The directory that contains `crt1.o` or `crt2.o`.\n"
"# On POSIX, can be found with `cc -print-file-name=crt1.o`.\n"
"# Not needed when targeting MacOS.\n"
"crt_dir=%s\n"
"\n"
"# The directory that contains `crtbegin.o`.\n"
"# On POSIX, can be found with `cc -print-file-name=crtbegin.o`.\n"
"# Not needed when targeting MacOS.\n"
"static_crt_dir=%s\n"
"\n"
"# The directory that contains `vcruntime.lib`.\n"
"# Only needed when targeting MSVC on Windows.\n"
"msvc_lib_dir=%s\n"
@@ -415,6 +436,7 @@ void zig_libc_render(ZigLibCInstallation *self, FILE *file) {
buf_ptr(&self->include_dir),
buf_ptr(&self->sys_include_dir),
buf_ptr(&self->crt_dir),
buf_ptr(&self->static_crt_dir),
buf_ptr(&self->msvc_lib_dir),
buf_ptr(&self->kernel32_lib_dir)
);
@@ -431,6 +453,8 @@ Error zig_libc_find_native(ZigLibCInstallation *self, bool verbose) {
return err;
if ((err = zig_libc_find_native_crt_dir_posix(self, verbose)))
return err;
if ((err = zig_libc_find_native_static_crt_dir_posix(self, verbose)))
return err;
return ErrorNone;
} else {
ZigWindowsSDK *sdk;
@@ -444,7 +468,7 @@ Error zig_libc_find_native(ZigLibCInstallation *self, bool verbose) {
return err;
if ((err = zig_libc_find_native_include_dir_windows(self, sdk, verbose)))
return err;
if ((err = zig_libc_find_crt_dir_windows(self, sdk, &native_target, verbose)))
if ((err = zig_libc_find_native_crt_dir_windows(self, sdk, &native_target, verbose)))
return err;
return ErrorNone;
case ZigFindWindowsSdkErrorOutOfMemory: