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feat: drop Mach-O and macOS support, Linux-only

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petrbalvin
2026-08-07 22:20:26 +02:00
parent 30c53565a7
commit d7ee1b78d4
9 changed files with 41 additions and 504 deletions
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cmd/gasm/main.go
+7 -10
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@@ -395,7 +395,7 @@ hover, document symbols, diagnostics and semantic-token highlighting.
}
func cmdAsm(args []string) int {
fs := newCommand("asm", "gasm asm [--format raw|elf|macho|goobj] [-p pkg] [-o out] <file>", `
fs := newCommand("asm", "gasm asm [--format raw|elf|goobj] [-p pkg] [-o out] <file>", `
Assemble FILE (amd64 or riscv64) without the Go toolchain: every TEXT function is
encoded to machine code — scalar, VEX/AVX2 and EVEX/AVX-512 instructions,
FP/SP frame mapping, local labels and file-local static symbols (GLOBL/DATA)
@@ -403,18 +403,18 @@ resolved RIP-relative — and printed as a hex dump.
With -o the output is written to a file instead. The --format flag selects
what is written: raw (the default) concatenates the functions and the data
section into one self-consistent image; elf and macho emit a relocatable
object (.text/.data sections, a symbol table and one PC32 relocation per
section into one self-consistent image; elf emits a relocatable object
(.text/.data sections, a symbol table and one PC32 relocation per
static-symbol reference) that links with the system toolchain; goobj emits
the Go toolchain's own object format, which cmd/link consumes directly (it
requires -p, the package path, and the installed Go toolchain).
`)
out := fs.String("o", "", "write the output to this file")
format := fs.String("format", "raw", "output format: raw (concatenated image), elf, macho or goobj (Go object)")
format := fs.String("format", "raw", "output format: raw (concatenated image), elf or goobj (Go object)")
pkg := fs.String("p", "", "package path for --format goobj (qualifies the exported symbols)")
fs.Parse(args)
if fs.NArg() != 1 {
fmt.Fprintln(os.Stderr, "usage: gasm asm [--format raw|elf|macho|goobj] [-p pkg] [-o out] <file>")
fmt.Fprintln(os.Stderr, "usage: gasm asm [--format raw|elf|goobj] [-p pkg] [-o out] <file>")
return 2
}
path := fs.Arg(0)
@@ -497,7 +497,7 @@ requires -p, the package path, and the installed Go toolchain).
switch *format {
case "raw":
if len(img.Externals) > 0 {
fmt.Fprintf(os.Stderr, "gasm asm: external symbol %q needs an object file (use --format elf or --format macho)\n", img.Externals[0])
fmt.Fprintf(os.Stderr, "gasm asm: external symbol %q needs an object file (use --format elf)\n", img.Externals[0])
return 1
}
obj, kind = img.Bytes(), "raw image"
@@ -508,9 +508,6 @@ requires -p, the package path, and the installed Go toolchain).
obj, err = img.ELFObject()
}
kind = "ELF object"
case "macho":
obj, err = img.MachOObject()
kind = "Mach-O object"
case "goobj":
if targetArch == arch.RISCV {
obj, err = img.GOObjectRISCV(*pkg, path)
@@ -519,7 +516,7 @@ requires -p, the package path, and the installed Go toolchain).
}
kind = "Go object"
default:
fmt.Fprintf(os.Stderr, "gasm asm: unknown format %q (want raw, elf, macho or goobj)\n", *format)
fmt.Fprintf(os.Stderr, "gasm asm: unknown format %q (want raw, elf or goobj)\n", *format)
return 2
}
if err != nil {