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stage2: support debug dumping zir as a build option

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So that it's not needed to manually comment and uncomment the debug
code.
This commit is contained in:
Andrew Kelley 2020-08-25 21:31:03 -07:00
parent e97157f71c
commit 237d9a105d
2 changed files with 11 additions and 5 deletions
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2
build.zig
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@ -83,6 +83,7 @@ pub fn build(b: *Builder) !void {
}
const log_scopes = b.option([]const []const u8, "log", "Which log scopes to enable") orelse &[0][]const u8{};
const zir_dumps = b.option([]const []const u8, "dump-zir", "Which functions to dump ZIR for before codegen") orelse &[0][]const u8{};
const opt_version_string = b.option([]const u8, "version-string", "Override Zig version string. Default is to find out with git.");
const version = if (opt_version_string) |version| version else v: {
@ -103,6 +104,7 @@ pub fn build(b: *Builder) !void {
exe.addBuildOption([]const u8, "version", version);
exe.addBuildOption([]const []const u8, "log_scopes", log_scopes);
exe.addBuildOption([]const []const u8, "zir_dumps", zir_dumps);
exe.addBuildOption(bool, "enable_tracy", tracy != null);
if (tracy) |tracy_path| {
const client_cpp = fs.path.join(

14
src-self-hosted/link/Elf.zig
View File

@ -17,6 +17,7 @@ const Type = @import("../type.zig").Type;
const link = @import("../link.zig");
const File = link.File;
const Elf = @This();
const build_options = @import("build_options");
const default_entry_addr = 0x8000000;
@ -1640,11 +1641,14 @@ pub fn updateDecl(self: *Elf, module: *Module, decl: *Module.Decl) !void {
else => false,
};
if (is_fn) {
{
//if (mem.eql(u8, mem.spanZ(decl.name), "add")) {
//}
std.debug.print("\n{}\n", .{decl.name});
typed_value.val.cast(Value.Payload.Function).?.func.dump(module.*);
const zir_dumps = if (std.builtin.is_test) &[0][]const u8{} else build_options.zir_dumps;
if (zir_dumps.len != 0) {
for (zir_dumps) |fn_name| {
if (mem.eql(u8, mem.spanZ(decl.name), fn_name)) {
std.debug.print("\n{}\n", .{decl.name});
typed_value.val.cast(Value.Payload.Function).?.func.dump(module.*);
}
}
}
// For functions we need to add a prologue to the debug line program.