Commit: ac38711fefcc6d7f5804dd5c324a7ba175863644
Parent: 359a77bc56b24ee9ca7dc690149f3ffdeeda2d7e
Author: Randy Palamar
Date: Sat, 3 May 2025 22:06:21 -0600
build: generic optimization target
Diffstat:
| M | build.c | | | 48 | +++++++++++++++++++++++++++++++++++------------- |
1 file changed, 35 insertions(+), 13 deletions(-)
diff --git a/build.c b/build.c
@@ -1,18 +1,28 @@
/* See LICENSE for license details. */
/* NOTE: inspired by nob: https://github.com/tsoding/nob.h */
-#define BASE_CFLAGS "-march=native", "-std=c11", "-Wall", "-Iexternal/include"
-
-#define BUILD_DEPS __FILE__, "os_win32.c", "os_linux.c", "util.c", "util.h"
+#define COMMON_FLAGS "-std=c11", "-Wall", "-Iexternal/include"
#include "util.h"
#include <stdarg.h>
#include <stdio.h>
-#define is_unix 0
-#define is_w32 0
-#define is_clang 0
+#define is_aarch64 0
+#define is_amd64 0
+#define is_unix 0
+#define is_w32 0
+#define is_clang 0
+
+#ifdef __ARM_ARCH_ISA_A64
+#undef is_aarch64
+#define is_aarch64 1
+#elif __x86_64__
+#undef is_amd64
+#define is_amd64 1
+#else
+#error unsupported architecture
+#endif
#if defined(__linux__)
#undef is_unix
@@ -44,9 +54,9 @@
#ifdef __clang__
#undef is_clang
#define is_clang 1
-#define BUILD_COMMAND(output, input) "clang", BASE_CFLAGS, "-o", output, input
+#define COMPILER "clang"
#else
-#define BUILD_COMMAND(output, input) "cc", BASE_CFLAGS, "-o", output, input
+#define COMPILER "cc"
#endif
#define shift(list, count) ((count)--, *(list)++)
@@ -69,6 +79,7 @@ typedef struct {
typedef struct {
b32 debug;
+ b32 generic;
b32 report;
b32 sanitize;
} Options;
@@ -313,7 +324,7 @@ function void
check_rebuild_self(Arena arena, i32 argc, char *argv[])
{
char *binary = shift(argv, argc);
- if (needs_rebuild(binary, BUILD_DEPS)) {
+ if (needs_rebuild(binary, __FILE__, "os_win32.c", "os_linux.c", "util.c", "util.h")) {
Stream name_buffer = arena_stream(arena);
stream_append_s8s(&name_buffer, c_str_to_s8(binary), s8(".old"));
char *old_name = (char *)arena_stream_commit_zero(&arena, &name_buffer).data;
@@ -322,8 +333,8 @@ check_rebuild_self(Arena arena, i32 argc, char *argv[])
die("failed to move: %s -> %s\n", binary, old_name);
CommandList c = {0};
- cmd_append(&arena, &c, BUILD_COMMAND(binary, __FILE__));
- cmd_append(&arena, &c, "-O3", "-Wno-unused-function", (void *)0);
+ cmd_append(&arena, &c, COMPILER, "-march=native", "-O3", COMMON_FLAGS);
+ cmd_append(&arena, &c, "-Wno-unused-function", __FILE__, "-o", binary, (void *)0);
if (!run_synchronous(arena, &c)) {
os_rename_file(old_name, binary);
die("failed to rebuild self\n");
@@ -355,6 +366,7 @@ usage(char *argv0)
{
die("%s [--debug] [--report] [--sanitize]\n"
" --debug: dynamically link and build with debug symbols\n"
+ " --generic: compile for a generic target (x86-64-v3 or aarch64 with NEON)\n"
" --report: print compilation stats (clang only)\n"
" --sanitize: build with ASAN and UBSAN\n"
, argv0);
@@ -371,6 +383,8 @@ parse_options(i32 argc, char *argv[])
s8 str = c_str_to_s8(arg);
if (s8_equal(str, s8("--debug"))) {
result.debug = 1;
+ } else if (s8_equal(str, s8("--generic"))) {
+ result.generic = 1;
} else if (s8_equal(str, s8("--report"))) {
result.report = 1;
} else if (s8_equal(str, s8("--sanitize"))) {
@@ -387,7 +401,16 @@ function CommandList
cmd_base(Arena *a, Options *o)
{
CommandList result = {0};
- cmd_append(a, &result, is_clang ? "clang" : "cc", BASE_CFLAGS);
+ cmd_append(a, &result, COMPILER);
+ if (o->generic) {
+ /* TODO(rnp): support cross compiling with clang */
+ if (is_amd64) cmd_append(a, &result, "-march=x86-64-v3");
+ if (is_aarch64) cmd_append(a, &result, "-march=aarch64");
+ } else {
+ cmd_append(a, &result, "-march=native");
+ }
+ cmd_append(a, &result, COMMON_FLAGS);
+
if (o->debug) cmd_append(a, &result, "-O0", "-D_DEBUG", "-Wno-unused-function");
else cmd_append(a, &result, "-O3");
@@ -443,7 +466,6 @@ build_static_library(Arena a, CommandList cc, char *name, char **deps, char **ou
/* TODO(rnp): refactor to not need outputs */
b32 result = 0;
b32 all_success = 1;
- cmd_append(&a, &cc, "-static");
for (iz i = 0; i < count; i++) {
cmd_append(&a, &cc, "-c", deps[i], "-o", outputs[i], (void *)0);
all_success &= run_synchronous(a, &cc);