qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-11-12 09:50:21 -07:00
Code Releases Activity

undo CL 156430044 / 5d69cad4faaf

Browse Source 
Partial undo, changes to ldelf.c retained.

Some platforms are still not working even with the integrated assembler disabled, will have to find another solution.

««« original CL description
cmd/cgo: disable clang's integrated assembler

Fixes #8348.

Clang's internal assembler (introduced by default in clang 3.4) understands the .arch directive, but doesn't change the default value of -march. This causes the build to fail when we use BLX (armv5 and above) when clang is compiled for the default armv4t architecture (which appears to be the default on all the distros I've used).

This is probably a clang bug, so work around it for the time being by disabling the integrated assembler when compiling the cgo assembly shim.

This CL also includes a small change to ldelf.c which was required as clang 3.4 and above generate more weird symtab entries.

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/156430044
»»»

LGTM=minux
R=iant, minux
CC=golang-codereviews
https://golang.org/cl/162880044
This commit is contained in:
Dave Cheney 2014-10-21 23:42:13 +00:00
parent b60d5e12e9
commit 4073be88f4
1 changed files with 1 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/cmd/cgo/gcc.go
View File

@ -745,13 +745,7 @@ func (p *Package) gccMachine() []string {
case "386":
return []string{"-m32"}
case "arm":
args := []string{"-marm"} // not thumb
if strings.Contains(p.gccBaseCmd()[0], "clang") {
// The clang integrated assembler understands the .arch directive
// but does not appear to honor it, so disable it. Issue 8348.
args = append(args, "-no-integrated-as")
}
return args
return []string{"-marm"} // not thumb
}
return nil
}