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-rw-r--r--src/main.cpp111
1 files changed, 25 insertions, 86 deletions
diff --git a/src/main.cpp b/src/main.cpp
index fd50c1b145..a844730014 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -93,6 +93,7 @@ static int print_full_usage(const char *arg0, FILE *file, int return_code) {
" --verbose-llvm-ir enable compiler debug output for LLVM IR\n"
" --verbose-cimport enable compiler debug output for C imports\n"
" --verbose-cc enable compiler debug output for C compilation\n"
+ " --verbose-llvm-cpu-features enable compiler debug output for LLVM CPU features\n"
" -dirafter [dir] add directory to AFTER include search path\n"
" -isystem [dir] add directory to SYSTEM include search path\n"
" -I[dir] add directory to include search path\n"
@@ -100,6 +101,8 @@ static int print_full_usage(const char *arg0, FILE *file, int return_code) {
" --override-lib-dir [arg] override path to Zig lib directory\n"
" -ffunction-sections places each function in a separate section\n"
" -D[macro]=[value] define C [macro] to [value] (1 if [value] omitted)\n"
+ " -target-cpu [cpu] target one specific CPU by name\n"
+ " -target-feature [features] specify the set of CPU features to target\n"
"\n"
"Link Options:\n"
" --bundle-compiler-rt for static libraries, include compiler-rt symbols\n"
@@ -153,88 +156,6 @@ static int print_libc_usage(const char *arg0, FILE *file, int return_code) {
return return_code;
}
-static bool arch_available_in_llvm(ZigLLVM_ArchType arch) {
- LLVMTargetRef target_ref;
- char *err_msg = nullptr;
- char triple_string[128];
- sprintf(triple_string, "%s-unknown-unknown-unknown", ZigLLVMGetArchTypeName(arch));
- return !LLVMGetTargetFromTriple(triple_string, &target_ref, &err_msg);
-}
-
-static int print_target_list(FILE *f) {
- ZigTarget native;
- get_native_target(&native);
-
- fprintf(f, "Architectures:\n");
- size_t arch_count = target_arch_count();
- for (size_t arch_i = 0; arch_i < arch_count; arch_i += 1) {
- ZigLLVM_ArchType arch = target_arch_enum(arch_i);
- if (!arch_available_in_llvm(arch))
- continue;
- const char *arch_name = target_arch_name(arch);
- SubArchList sub_arch_list = target_subarch_list(arch);
- size_t sub_count = target_subarch_count(sub_arch_list);
- const char *arch_native_str = (native.arch == arch) ? " (native)" : "";
- fprintf(f, " %s%s\n", arch_name, arch_native_str);
- for (size_t sub_i = 0; sub_i < sub_count; sub_i += 1) {
- ZigLLVM_SubArchType sub = target_subarch_enum(sub_arch_list, sub_i);
- const char *sub_name = target_subarch_name(sub);
- const char *sub_native_str = (native.arch == arch && native.sub_arch == sub) ? " (native)" : "";
- fprintf(f, " %s%s\n", sub_name, sub_native_str);
- }
- }
-
- fprintf(f, "\nOperating Systems:\n");
- size_t os_count = target_os_count();
- for (size_t i = 0; i < os_count; i += 1) {
- Os os_type = target_os_enum(i);
- const char *native_str = (native.os == os_type) ? " (native)" : "";
- fprintf(f, " %s%s\n", target_os_name(os_type), native_str);
- }
-
- fprintf(f, "\nC ABIs:\n");
- size_t abi_count = target_abi_count();
- for (size_t i = 0; i < abi_count; i += 1) {
- ZigLLVM_EnvironmentType abi = target_abi_enum(i);
- const char *native_str = (native.abi == abi) ? " (native)" : "";
- fprintf(f, " %s%s\n", target_abi_name(abi), native_str);
- }
-
- fprintf(f, "\nAvailable libcs:\n");
- size_t libc_count = target_libc_count();
- for (size_t i = 0; i < libc_count; i += 1) {
- ZigTarget libc_target;
- target_libc_enum(i, &libc_target);
- bool is_native = native.arch == libc_target.arch &&
- native.os == libc_target.os &&
- native.abi == libc_target.abi;
- const char *native_str = is_native ? " (native)" : "";
- fprintf(f, " %s-%s-%s%s\n", target_arch_name(libc_target.arch),
- target_os_name(libc_target.os), target_abi_name(libc_target.abi), native_str);
- }
-
- fprintf(f, "\nAvailable glibc versions:\n");
- ZigGLibCAbi *glibc_abi;
- Error err;
- if ((err = glibc_load_metadata(&glibc_abi, get_zig_lib_dir(), true))) {
- return EXIT_FAILURE;
- }
- for (size_t i = 0; i < glibc_abi->all_versions.length; i += 1) {
- ZigGLibCVersion *this_ver = &glibc_abi->all_versions.at(i);
- bool is_native = native.glibc_version != nullptr &&
- native.glibc_version->major == this_ver->major &&
- native.glibc_version->minor == this_ver->minor &&
- native.glibc_version->patch == this_ver->patch;
- const char *native_str = is_native ? " (native)" : "";
- if (this_ver->patch == 0) {
- fprintf(f, " %d.%d%s\n", this_ver->major, this_ver->minor, native_str);
- } else {
- fprintf(f, " %d.%d.%d%s\n", this_ver->major, this_ver->minor, this_ver->patch, native_str);
- }
- }
- return EXIT_SUCCESS;
-}
-
enum Cmd {
CmdNone,
CmdBuild,
@@ -478,6 +399,7 @@ int main(int argc, char **argv) {
bool verbose_llvm_ir = false;
bool verbose_cimport = false;
bool verbose_cc = false;
+ bool verbose_llvm_cpu_features = false;
bool link_eh_frame_hdr = false;
ErrColor color = ErrColorAuto;
CacheOpt enable_cache = CacheOptAuto;
@@ -528,6 +450,8 @@ int main(int argc, char **argv) {
WantStackCheck want_stack_check = WantStackCheckAuto;
WantCSanitize want_sanitize_c = WantCSanitizeAuto;
bool function_sections = false;
+ const char *cpu = nullptr;
+ const char *features = nullptr;
ZigList<const char *> llvm_argv = {0};
llvm_argv.append("zig (LLVM option parsing)");
@@ -692,6 +616,8 @@ int main(int argc, char **argv) {
verbose_cimport = true;
} else if (strcmp(arg, "--verbose-cc") == 0) {
verbose_cc = true;
+ } else if (strcmp(arg, "--verbose-llvm-cpu-features") == 0) {
+ verbose_llvm_cpu_features = true;
} else if (strcmp(arg, "-rdynamic") == 0) {
rdynamic = true;
} else if (strcmp(arg, "--each-lib-rpath") == 0) {
@@ -936,6 +862,10 @@ int main(int argc, char **argv) {
, argv[i]);
return EXIT_FAILURE;
}
+ } else if (strcmp(arg, "-target-cpu") == 0) {
+ cpu = argv[i];
+ } else if (strcmp(arg, "-target-feature") == 0) {
+ features = argv[i];
} else {
fprintf(stderr, "Invalid argument: %s\n", arg);
return print_error_usage(arg0);
@@ -1051,15 +981,22 @@ int main(int argc, char **argv) {
}
}
+ Buf zig_triple_buf = BUF_INIT;
+ target_triple_zig(&zig_triple_buf, &target);
+
+ const char *stage2_triple_arg = target.is_native ? nullptr : buf_ptr(&zig_triple_buf);
+ if ((err = stage2_cpu_features_parse(&target.cpu_features, stage2_triple_arg, cpu, features))) {
+ fprintf(stderr, "unable to initialize CPU features: %s\n", err_str(err));
+ return main_exit(root_progress_node, EXIT_FAILURE);
+ }
+
if (output_dir != nullptr && enable_cache == CacheOptOn) {
fprintf(stderr, "`--output-dir` is incompatible with --cache on.\n");
return print_error_usage(arg0);
}
if (target_requires_pic(&target, have_libc) && want_pic == WantPICDisabled) {
- Buf triple_buf = BUF_INIT;
- target_triple_zig(&triple_buf, &target);
- fprintf(stderr, "`--disable-pic` is incompatible with target '%s'\n", buf_ptr(&triple_buf));
+ fprintf(stderr, "`--disable-pic` is incompatible with target '%s'\n", buf_ptr(&zig_triple_buf));
return print_error_usage(arg0);
}
@@ -1226,6 +1163,7 @@ int main(int argc, char **argv) {
g->verbose_llvm_ir = verbose_llvm_ir;
g->verbose_cimport = verbose_cimport;
g->verbose_cc = verbose_cc;
+ g->verbose_llvm_cpu_features = verbose_llvm_cpu_features;
g->output_dir = output_dir;
g->disable_gen_h = disable_gen_h;
g->bundle_compiler_rt = bundle_compiler_rt;
@@ -1233,6 +1171,7 @@ int main(int argc, char **argv) {
g->system_linker_hack = system_linker_hack;
g->function_sections = function_sections;
+
for (size_t i = 0; i < lib_dirs.length; i += 1) {
codegen_add_lib_dir(g, lib_dirs.at(i));
}
@@ -1413,7 +1352,7 @@ int main(int argc, char **argv) {
return main_exit(root_progress_node, EXIT_SUCCESS);
}
case CmdTargets:
- return print_target_list(stdout);
+ return stage2_cmd_targets(buf_ptr(&zig_triple_buf));
case CmdNone:
return print_full_usage(arg0, stderr, EXIT_FAILURE);
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-28 19:12:30 +0000