fix race conditions in self-hosted compiler; add test

 * fix race condition in std.event.Channel deinit
 * add support to zig build for --no-rosegment
 * add passing self-hosted compare-output test for calling a function
 * put a global lock on LLD linking because it's not thread safe

1 files changed, 13 insertions, 0 deletions

diff --git a/test/stage2/compare_output.zig b/test/stage2/compare_output.zig
index 35adcbb96b..fdc3d49145 100644
--- a/test/stage2/compare_output.zig
+++ b/test/stage2/compare_output.zig
@@ -2,6 +2,7 @@ const std = @import("std");
 const TestContext = @import("../../src-self-hosted/test.zig").TestContext;
 
 pub fn addCases(ctx: *TestContext) !void {
+    // hello world
     try ctx.testCompareOutputLibC(
         \\extern fn puts([*]const u8) void;
         \\export fn main() c_int {
@@ -9,4 +10,16 @@ pub fn addCases(ctx: *TestContext) !void {
         \\    return 0;
         \\}
     , "Hello, world!" ++ std.cstr.line_sep);
+
+    // function calling another function
+    try ctx.testCompareOutputLibC(
+        \\extern fn puts(s: [*]const u8) void;
+        \\export fn main() c_int {
+        \\    return foo(c"OK");
+        \\}
+        \\fn foo(s: [*]const u8) c_int {
+        \\    puts(s);
+        \\    return 0;
+        \\}
+    , "OK" ++ std.cstr.line_sep);
 }