Commit 253ecd5c11
Changed files (7)
src/all_types.hpp
@@ -1457,6 +1457,7 @@ enum BuildMode {
BuildModeDebug,
BuildModeFastRelease,
BuildModeSafeRelease,
+ BuildModeSmallRelease,
};
enum EmitFileType {
src/codegen.cpp
@@ -512,7 +512,9 @@ static LLVMValueRef fn_llvm_value(CodeGen *g, FnTableEntry *fn_table_entry) {
}
if (fn_table_entry->body_node != nullptr) {
- bool want_fn_safety = g->build_mode != BuildModeFastRelease && !fn_table_entry->def_scope->safety_off;
+ bool want_fn_safety = g->build_mode != BuildModeFastRelease &&
+ g->build_mode != BuildModeSmallRelease &&
+ !fn_table_entry->def_scope->safety_off;
if (want_fn_safety) {
if (g->libc_link_lib != nullptr) {
addLLVMFnAttr(fn_table_entry->llvm_value, "sspstrong");
@@ -817,7 +819,7 @@ static bool ir_want_fast_math(CodeGen *g, IrInstruction *instruction) {
}
static bool ir_want_runtime_safety(CodeGen *g, IrInstruction *instruction) {
- if (g->build_mode == BuildModeFastRelease)
+ if (g->build_mode == BuildModeFastRelease || g->build_mode == BuildModeSmallRelease)
return false;
// TODO memoize
@@ -5747,10 +5749,12 @@ static void do_code_gen(CodeGen *g) {
os_path_join(g->cache_dir, o_basename, output_path);
ensure_cache_dir(g);
+ bool is_small = g->build_mode == BuildModeSmallRelease;
+
switch (g->emit_file_type) {
case EmitFileTypeBinary:
if (ZigLLVMTargetMachineEmitToFile(g->target_machine, g->module, buf_ptr(output_path),
- ZigLLVM_EmitBinary, &err_msg, g->build_mode == BuildModeDebug))
+ ZigLLVM_EmitBinary, &err_msg, g->build_mode == BuildModeDebug, is_small))
{
zig_panic("unable to write object file %s: %s", buf_ptr(output_path), err_msg);
}
@@ -5760,7 +5764,7 @@ static void do_code_gen(CodeGen *g) {
case EmitFileTypeAssembly:
if (ZigLLVMTargetMachineEmitToFile(g->target_machine, g->module, buf_ptr(output_path),
- ZigLLVM_EmitAssembly, &err_msg, g->build_mode == BuildModeDebug))
+ ZigLLVM_EmitAssembly, &err_msg, g->build_mode == BuildModeDebug, is_small))
{
zig_panic("unable to write assembly file %s: %s", buf_ptr(output_path), err_msg);
}
@@ -5769,7 +5773,7 @@ static void do_code_gen(CodeGen *g) {
case EmitFileTypeLLVMIr:
if (ZigLLVMTargetMachineEmitToFile(g->target_machine, g->module, buf_ptr(output_path),
- ZigLLVM_EmitLLVMIr, &err_msg, g->build_mode == BuildModeDebug))
+ ZigLLVM_EmitLLVMIr, &err_msg, g->build_mode == BuildModeDebug, is_small))
{
zig_panic("unable to write llvm-ir file %s: %s", buf_ptr(output_path), err_msg);
}
@@ -6160,6 +6164,7 @@ static const char *build_mode_to_str(BuildMode build_mode) {
case BuildModeDebug: return "Mode.Debug";
case BuildModeSafeRelease: return "Mode.ReleaseSafe";
case BuildModeFastRelease: return "Mode.ReleaseFast";
+ case BuildModeSmallRelease: return "Mode.ReleaseSmall";
}
zig_unreachable();
}
@@ -6300,6 +6305,7 @@ static void define_builtin_compile_vars(CodeGen *g) {
" Debug,\n"
" ReleaseSafe,\n"
" ReleaseFast,\n"
+ " ReleaseSmall,\n"
"};\n\n");
}
{
@@ -6471,7 +6477,7 @@ static void init(CodeGen *g) {
}
}
- g->have_err_ret_tracing = g->build_mode != BuildModeFastRelease;
+ g->have_err_ret_tracing = g->build_mode != BuildModeFastRelease && g->build_mode != BuildModeSmallRelease;
define_builtin_fns(g);
define_builtin_compile_vars(g);
src/main.cpp
@@ -43,6 +43,7 @@ static int usage(const char *arg0) {
" --pkg-end pop current pkg\n"
" --release-fast build with optimizations on and safety off\n"
" --release-safe build with optimizations on and safety on\n"
+ " --release-small build with size optimizations on and safety off\n"
" --static output will be statically linked\n"
" --strip exclude debug symbols\n"
" --target-arch [name] specify target architecture\n"
@@ -482,6 +483,8 @@ int main(int argc, char **argv) {
build_mode = BuildModeFastRelease;
} else if (strcmp(arg, "--release-safe") == 0) {
build_mode = BuildModeSafeRelease;
+ } else if (strcmp(arg, "--release-small") == 0) {
+ build_mode = BuildModeSmallRelease;
} else if (strcmp(arg, "--strip") == 0) {
strip = true;
} else if (strcmp(arg, "--static") == 0) {
src/zig_llvm.cpp
@@ -81,7 +81,7 @@ static const bool assertions_on = false;
#endif
bool ZigLLVMTargetMachineEmitToFile(LLVMTargetMachineRef targ_machine_ref, LLVMModuleRef module_ref,
- const char *filename, ZigLLVM_EmitOutputType output_type, char **error_message, bool is_debug)
+ const char *filename, ZigLLVM_EmitOutputType output_type, char **error_message, bool is_debug, bool is_small)
{
std::error_code EC;
raw_fd_ostream dest(filename, EC, sys::fs::F_None);
@@ -100,7 +100,7 @@ bool ZigLLVMTargetMachineEmitToFile(LLVMTargetMachineRef targ_machine_ref, LLVMM
return true;
}
PMBuilder->OptLevel = target_machine->getOptLevel();
- PMBuilder->SizeLevel = 0;
+ PMBuilder->SizeLevel = is_small ? 1 : 0;
PMBuilder->DisableTailCalls = is_debug;
PMBuilder->DisableUnitAtATime = is_debug;
src/zig_llvm.h
@@ -52,7 +52,7 @@ enum ZigLLVM_EmitOutputType {
};
ZIG_EXTERN_C bool ZigLLVMTargetMachineEmitToFile(LLVMTargetMachineRef targ_machine_ref, LLVMModuleRef module_ref,
- const char *filename, enum ZigLLVM_EmitOutputType output_type, char **error_message, bool is_debug);
+ const char *filename, enum ZigLLVM_EmitOutputType output_type, char **error_message, bool is_debug, bool is_small);
ZIG_EXTERN_C LLVMTypeRef ZigLLVMTokenTypeInContext(LLVMContextRef context_ref);
std/special/builtin.zig
@@ -54,7 +54,9 @@ export fn memmove(dest: ?&u8, src: ?&const u8, n: usize) ?&u8 {
}
comptime {
- if (builtin.mode != builtin.Mode.ReleaseFast and builtin.os != builtin.Os.windows) {
+ if (builtin.mode != builtin.Mode.ReleaseFast and
+ builtin.mode != builtin.Mode.ReleaseSmall and
+ builtin.os != builtin.Os.windows) {
@export("__stack_chk_fail", __stack_chk_fail, builtin.GlobalLinkage.Strong);
}
if (builtin.os == builtin.Os.linux and builtin.arch == builtin.Arch.x86_64) {
std/build.zig
@@ -426,15 +426,18 @@ pub const Builder = struct {
const release_safe = self.option(bool, "release-safe", "optimizations on and safety on") ?? false;
const release_fast = self.option(bool, "release-fast", "optimizations on and safety off") ?? false;
+ const release_small = self.option(bool, "release-small", "size optimizations on and safety off") ?? false;
- const mode = if (release_safe and !release_fast)
+ const mode = if (release_safe and !release_fast and !release_small)
builtin.Mode.ReleaseSafe
- else if (release_fast and !release_safe)
+ else if (release_fast and !release_safe and !release_small)
builtin.Mode.ReleaseFast
- else if (!release_fast and !release_safe)
+ else if (release_small and !release_fast and !release_safe)
+ builtin.Mode.ReleaseSmall
+ else if (!release_fast and !release_safe and !release_small)
builtin.Mode.Debug
else x: {
- warn("Both -Drelease-safe and -Drelease-fast specified");
+ warn("Multiple release modes (of -Drelease-safe, -Drelease-fast and -Drelease-small)");
self.markInvalidUserInput();
break :x builtin.Mode.Debug;
};
@@ -1229,6 +1232,7 @@ pub const LibExeObjStep = struct {
builtin.Mode.Debug => {},
builtin.Mode.ReleaseSafe => zig_args.append("--release-safe") catch unreachable,
builtin.Mode.ReleaseFast => zig_args.append("--release-fast") catch unreachable,
+ builtin.Mode.ReleaseSmall => zig_args.append("--release-small") catch unreachable,
}
zig_args.append("--cache-dir") catch unreachable;
@@ -1369,7 +1373,7 @@ pub const LibExeObjStep = struct {
args.append("ssp-buffer-size=4") catch unreachable;
}
},
- builtin.Mode.ReleaseFast => {
+ builtin.Mode.ReleaseFast, builtin.Mode.ReleaseSmall => {
args.append("-O2") catch unreachable;
args.append("-fno-stack-protector") catch unreachable;
},
@@ -1706,6 +1710,7 @@ pub const TestStep = struct {
builtin.Mode.Debug => {},
builtin.Mode.ReleaseSafe => try zig_args.append("--release-safe"),
builtin.Mode.ReleaseFast => try zig_args.append("--release-fast"),
+ builtin.Mode.ReleaseSmall => try zig_args.append("--release-small"),
}
switch (self.target) {