Thanks for filing the issue (https://github.com/golang/go/issues/38192). I
added some comments.
On Wed, Apr 1, 2020 at 12:46 AM Ian Lance Taylor <i...@golang.org> wrote:
> On Tue, Mar 31, 2020 at 5:19 PM sanye <xba...@gmail.com> wrote:
> >
> > Hello gophers,
> > I have a problem when debugging with gdb using go1.14/1.14.1, set a
> breakpoint on entrypoint will not show line and file information, but
> go1.13.9 and older versions have, here is the detail
> >
> > demo.go
> > ----------------
> > package main
> >
> > func main() {
> > println("hello world")
> > }
> >
> > build
> > ----------------
> > go build -gcflags "all=-N -l" demo.go
> >
> > go1.13.9
> > -----------------
> > $ go version
> > go version go1.13.9 linux/amd64
> > $ go build -gcflags "all=-N -l" demo.go
> > $ gdb ./demo
> > ...
> > (gdb) info files
> > Symbols from "/dev/shm/ex/demo".
> > Local exec file:
> > `/dev/shm/ex/demo', file type elf64-x86-64.
> > Entry point: 0x4542a0
> > ...
> > (gdb) b *0x4542a0
> > Breakpoint 1 at 0x4542a0: file
> /dev/shm/ex/go/src/runtime/rt0_linux_amd64.s, line 8.
> >
> > go1.14/go1.14.1
> > ----------------
> > $ go version
> > go version go1.14.1 linux/amd64
> > $ go build -gcflags "all=-N -l" demo.go
> > $ gdb ./demo
> > ...
> > (gdb) info files
> > Symbols from "/dev/shm/ex/demo".
> > Local exec file:
> > `/dev/shm/ex/demo', file type elf64-x86-64.
> > Entry point: 0x45cdd0
> > ...
> > (gdb) b *0x45cdd0
> > Breakpoint 1 at 0x45cdd0
> >
> > any help would be appreciated
>
> Odd. I can recreate this, but I don't know what is going on here.
> Please open a bug report at https://golang.org/issue. Thanks.
>
> Ian
>
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> .
>
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