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zig2.c: omit non-essential subcommands

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When producing zig2.c, don't waste time emitting C code for subcommands
that won't be used, such as objcopy.

This takes zig2.c down from 111M to 109M, and sidesteps some unfortunate
warnings that are currently emitted by GCC.
This commit is contained in:
Andrew Kelley
2023-05-17 15:43:15 -07:00
parent ad20236e97
commit fea6157102
1 changed files with 10 additions and 8 deletions
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18
src/main.zig
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@@ -281,12 +281,8 @@ pub fn mainArgs(gpa: Allocator, arena: Allocator, args: []const []const u8) !voi
mem.eql(u8, cmd, "ar"))
{
return process.exit(try llvmArMain(arena, args));
} else if (mem.eql(u8, cmd, "cc")) {
return buildOutputType(gpa, arena, args, .cc);
} else if (mem.eql(u8, cmd, "c++")) {
return buildOutputType(gpa, arena, args, .cpp);
} else if (mem.eql(u8, cmd, "translate-c")) {
return buildOutputType(gpa, arena, args, .translate_c);
} else if (mem.eql(u8, cmd, "build")) {
return cmdBuild(gpa, arena, cmd_args);
} else if (mem.eql(u8, cmd, "clang") or
mem.eql(u8, cmd, "-cc1") or mem.eql(u8, cmd, "-cc1as"))
{
@@ -296,8 +292,14 @@ pub fn mainArgs(gpa: Allocator, arena: Allocator, args: []const []const u8) !voi
mem.eql(u8, cmd, "wasm-ld"))
{
return process.exit(try lldMain(arena, args, true));
} else if (mem.eql(u8, cmd, "build")) {
return cmdBuild(gpa, arena, cmd_args);
} else if (build_options.omit_pkg_fetching_code) {
@panic("only a few subcommands are supported in a zig2.c build");
} else if (mem.eql(u8, cmd, "cc")) {
return buildOutputType(gpa, arena, args, .cc);
} else if (mem.eql(u8, cmd, "c++")) {
return buildOutputType(gpa, arena, args, .cpp);
} else if (mem.eql(u8, cmd, "translate-c")) {
return buildOutputType(gpa, arena, args, .translate_c);
} else if (mem.eql(u8, cmd, "fmt")) {
return cmdFmt(gpa, arena, cmd_args);
} else if (mem.eql(u8, cmd, "objcopy")) {