motiejus/zig
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more efficient builtin library code generation

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* introduce --disable-pic option which can generally be allowed to be
   the default. compiler_rt.a and builtin.a get this option when you
   build a static executable.
 * compiler_rt and builtin libraries are not built for build-lib
   --static
 * posix_spawn instead of fork/execv
 * disable the error limit on LLD. Fixes the blank lines printed
This commit is contained in:
Andrew Kelley
2018-10-09 12:18:09 -04:00
parent 5a3c02137e
commit 6b93495792
5 changed files with 44 additions and 28 deletions
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12
src/main.cpp
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@@ -47,6 +47,7 @@ static int print_full_usage(const char *arg0) {
" --cache-dir [path] override the cache directory\n"
" --cache [auto|off|on] build in global cache, print out paths to stdout\n"
" --color [auto|off|on] enable or disable colored error messages\n"
" --disable-pic disable Position Independent Code for libraries\n"
" --emit [asm|bin|llvm-ir] emit a specific file format as compilation output\n"
" -ftime-report print timing diagnostics\n"
" --libc-include-dir [path] directory where libc stdlib.h resides\n"
@@ -386,6 +387,7 @@ int main(int argc, char **argv) {
size_t ver_minor = 0;
size_t ver_patch = 0;
bool timing_info = false;
bool disable_pic = false;
const char *cache_dir = nullptr;
CliPkg *cur_pkg = allocate<CliPkg>(1);
BuildMode build_mode = BuildModeDebug;
@@ -556,6 +558,8 @@ int main(int argc, char **argv) {
each_lib_rpath = true;
} else if (strcmp(arg, "-ftime-report") == 0) {
timing_info = true;
} else if (strcmp(arg, "--disable-pic") == 0) {
disable_pic = true;
} else if (strcmp(arg, "--test-cmd-bin") == 0) {
test_exec_args.append(nullptr);
} else if (arg[1] == 'L' && arg[2] != 0) {
@@ -849,6 +853,14 @@ int main(int argc, char **argv) {
buf_out_name = buf_create_from_str("run");
}
CodeGen *g = codegen_create(zig_root_source_file, target, out_type, build_mode, get_zig_lib_dir());
if (disable_pic) {
if (out_type != OutTypeLib || !is_static) {
fprintf(stderr, "--disable-pic only applies to static libraries");
return EXIT_FAILURE;
}
g->disable_pic = true;
}
g->enable_time_report = timing_info;
buf_init_from_str(&g->cache_dir, cache_dir ? cache_dir : default_zig_cache_name);
codegen_set_out_name(g, buf_out_name);