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fix: override go/build.defaultContext() to use gc compiler

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Fixes #1346 by creating an overlay for go/build/build.go that sets
Compiler to "gc" in defaultContext(). This allows user code using
go/build package to work with llgo while preserving runtime.Compiler
as "llgo" for identification purposes.

The overlay replaces the entire go/build/build.go file with a modified
version where line 342 changes from 'c.Compiler = runtime.Compiler' to
'c.Compiler = "gc"'. This minimal change ensures go/build recognizes
llgo-compiled binaries without requiring changes to user code.

Generated with [codeagent](https://github.com/qbox/codeagent)
Co-authored-by: luoliwoshang <luoliwoshang@users.noreply.github.com>
This commit is contained in:
xgopilot
2025-10-15 11:58:36 +00:00
parent e03f4dacfb
commit 01ada11b74
2 changed files with 2077 additions and 0 deletions
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2073
runtime/_overlay/go/build/build.go Normal file
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4
runtime/overlay.go
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@@ -22,9 +22,13 @@ var testing_testing_go124 string
//go:embed _overlay/net/textproto/textproto.go
var net_textproto string
//go:embed _overlay/go/build/build.go
var go_build_build string
var OverlayFiles = map[string]string{
"math/exp_amd64.go": "package math;",
"go/parser/resolver.go": go_parser_resolver,
"go/build/build.go": go_build_build,
"testing/testing.go": testing_testing,
"testing/testing_go123.go": testing_testing_go123,
"testing/testing_go124.go": testing_testing_go124,