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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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6
src/codegen.cpp
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@@ -7228,7 +7228,10 @@ static void init(CodeGen *g) {
bool is_optimized = g->build_mode != BuildModeDebug;
LLVMCodeGenOptLevel opt_level = is_optimized ? LLVMCodeGenLevelAggressive : LLVMCodeGenLevelNone;
LLVMRelocMode reloc_mode = g->is_static ? LLVMRelocStatic : LLVMRelocPIC;
if (g->out_type == OutTypeExe && g->is_static) {
g->disable_pic = true;
}
LLVMRelocMode reloc_mode = g->disable_pic ? LLVMRelocStatic : LLVMRelocPIC;
const char *target_specific_cpu_args;
const char *target_specific_features;
@@ -8047,6 +8050,7 @@ static Error check_cache(CodeGen *g, Buf *manifest_dir, Buf *digest) {
cache_bool(ch, g->linker_rdynamic);
cache_bool(ch, g->no_rosegment_workaround);
cache_bool(ch, g->each_lib_rpath);
cache_bool(ch, g->disable_pic);
cache_buf_opt(ch, g->mmacosx_version_min);
cache_buf_opt(ch, g->mios_version_min);
cache_usize(ch, g->version_major);