What version of Go are you using (go version)?

$ go version
go version go1.14.4 linux/amd64

Does this issue reproduce with the latest release?

Unsure

What operating system and processor architecture are you using (go env)?

$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/root/.cache/go-build"
GOENV="/root/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/usr/local/go/go_packages"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build152069207=/tmp/go-build -gno-record-gcc-switches"

What did you do?

1. Create the following simple Go program and compile it:

   package main
   
   import(
       "flag"
       "fmt"
       "os"
   )
   
   func main() {
       var printBreaks bool = false
       flag.BoolVar(&printBreaks, "print-breaks", false, "print artificial break point addresses")
       flag.Parse()
   
       // Print the address for the EnterSandman function and then quit
       if printBreaks {
           fmt.Printf("\n%s\n", "ARTIFICIAL BREAKPOINTS:")
           fmt.Printf("%s\n", "==============================")
           fmt.Printf("%s%x\n", "main.EnterSandman() : 0x", EnterSandman)
           os.Exit(0)
       }
   
       fmt.Printf("%s\n", "Before 1991")
   
       EnterSandman()
   
       fmt.Printf("%s\n", "After 1991")
   }
   
   func EnterSandman() {
       fmt.Printf("%s\n", "Say your prayers, little one")
   }

   $ go build -o example example.go

2. Run it with the -print-breaks parameter to determine the address of the EnterSandman function.

   $ ./example -print-breaks
   
   ARTIFICIAL BREAKPOINTS:
   ==============================
   main.EnterSandman() : 0x49fe30

3. Open it using GDB and set the break point.

   $ gdb example
   (gdb) break *0x49fe30
   Breakpoint 1 at 0x49fe30: file /home/root/example.go, line 29.

4. The file / line shown by GDB match those of the function in the source file.

5. Run the program in GDB.

What did you expect to see?

The program properly break at the desired function.

What did you see instead?

(gdb) break *0x49fe30
Breakpoint 1 at 0x49fe30: file /home/root/example.go, line 29.
(gdb) run
Starting program: /client-c-library/vcb/test/vvp/example
[New LWP 122353]
[New LWP 122354]
[New LWP 122355]
Before 1991
Say your prayers, little one
After 1991
[LWP 122354 exited]
[LWP 122353 exited]
[LWP 122349 exited]
[Inferior 1 (process 122349) exited normally]
(gdb)