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| author | Cherry Zhang <cherryyz@google.com> | 2020-04-02 12:48:13 -0400 |
|---|---|---|
| committer | Cherry Zhang <cherryyz@google.com> | 2020-04-02 17:24:05 +0000 |
| commit | d92a5a80b5c06b5d9915c5f888ab5cac6a94b11e (patch) | |
| tree | 106ed3a755f8f779223c51c773be132be52f217c /src/cmd/internal/goobj/read.go | |
| parent | 8cc515ad3fe9f7f45470713ff1cd4faf323aef6a (diff) | |
| download | go-git-d92a5a80b5c06b5d9915c5f888ab5cac6a94b11e.tar.gz | |
[dev.link] cmd: support large function alignment
This ports CL 226997 to the dev.link branch.
- The assembler part and old object file writing are unchanged.
- Changes to cmd/link are applied to cmd/oldlink.
- Add alignment field to new object files for the new linker.
Change-Id: Id00f323ae5bdd86b2709a702ee28bcaa9ba962f8
Reviewed-on: https://go-review.googlesource.com/c/go/+/227025
Reviewed-by: Than McIntosh <thanm@google.com>
Diffstat (limited to 'src/cmd/internal/goobj/read.go')
| -rw-r--r-- | src/cmd/internal/goobj/read.go | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/cmd/internal/goobj/read.go b/src/cmd/internal/goobj/read.go index 027c77e725..44e619cabb 100644 --- a/src/cmd/internal/goobj/read.go +++ b/src/cmd/internal/goobj/read.go @@ -96,6 +96,7 @@ type Var struct { type Func struct { Args int64 // size in bytes of argument frame: inputs and outputs Frame int64 // size in bytes of local variable frame + Align uint32 // alignment requirement in bytes for the address of the function Leaf bool // function omits save of link register (ARM) NoSplit bool // function omits stack split prologue TopFrame bool // function is the top of the call stack @@ -591,6 +592,7 @@ func (r *objReader) parseObject(prefix []byte) error { s.Func = f f.Args = r.readInt() f.Frame = r.readInt() + f.Align = uint32(r.readInt()) flags := r.readInt() f.Leaf = flags&(1<<0) != 0 f.TopFrame = flags&(1<<4) != 0 |