Commit Graph

6 Commits (58b2d64784a734edea8ad397576dec5731af050f)

Author SHA1 Message Date
Daniel Martí 58b2d64784 drop support for Go 1.18.x
With Go 1.19 having been out for two months,
and Go 1.20's first beta coming out in two months,
it is now time to move forward again.
3 years ago
Daniel Martí ac0945eaa5 work around cmd/go issue relating to CompiledGoFiles
See https://golang.org/issue/28749. The improved asm test would fail:

	go parse: $WORK/imported/imported_amd64.s:1:1: expected 'package', found TEXT (and 2 more errors)

because we would incorrectly parse a non-Go file as a Go file.

Add a workaround. The original reporter's reproducer with go-ethereum
works now, as this was the last hiccup.

Fixes #555.
3 years ago
Daniel Martí e8e06f6ad6 support reverse on packages using cgo
The reverse feature relied on `GoFiles` from `go list`,
but that list may not be enough to typecheck a package:

	typecheck error: $WORK/main.go:3:15: undeclared name: longMain

`go help list` shows:

	GoFiles         []string   // .go source files (excluding CgoFiles, TestGoFiles, XTestGoFiles)
	CgoFiles        []string   // .go source files that import "C"
	CompiledGoFiles []string   // .go files presented to compiler (when using -compiled)

In other words, to mimic the same list of Go files fed to the compiler,
we want CompiledGoFiles.

Note that, since the cgo files show up as generated files,
we currently do not support reversing their filenames.
That is left as a TODO for now.

Updates #555.
3 years ago
Daniel Martí fc91758b49 obfuscate Go names in asm header files
Assembly files can include header files within the same Go module,
and those header files can include "defines" which refer to Go names.

Since those Go names are likely being obfuscated,
we need to replace them just like we do in assembly files.

The added mechanism is rather basic; we add two TODOs to improve it.
This should help when building projects like go-ethereum.

Fixes #553.
3 years ago
Daniel Martí f9d99190d2 use -toolexec="garble toolexec"
This way, the child process knows that it's running a toolchain command
via -toolexec without having to guess via filepath.IsAbs.

While here, improve the docs and tests a bit.
3 years ago
Daniel Martí 99c12e396a replace testdata/scripts/*.txt with testdata/script/*.txtar
Following the best practices from upstream.
In particular, the "txt" extension is somewhat ambiguous.

This may cause some conflicts due to the git diff noise,
but hopefully we won't ever do this again.
3 years ago