[Bug gdb/16953] New: New inferior for each rerun of a simple fork/exec of hello, where hello binary is missing.

[Bug gdb/16953] New: New inferior for each rerun of a simple fork/exec of hello, where hello binary is missing.

[dje at google dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=16953

            Bug ID: 16953
           Summary: New inferior for each rerun of a simple fork/exec of
                    hello, where hello binary is missing.
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdb
          Assignee: unassigned at sourceware dot org
          Reporter: dje at google dot com

fork-exec-hello.c:

#include <stdlib.h>
#include <unistd.h>
#include <wait.h>

const char hello[] = "./hello.x64";

int
main ()
{
  int child;
  int status;

  child = fork ();
  if (child < 0)
    {
      perror ("fork");
      exit (1);
    }

  if (child == 0)
    {
      execl (hello, hello, NULL);
      perror ("execl");
    }
  else
    {
      waitpid (child, &status, 0);
    }

  return 0;
}

hello.c:

well, you know ...

With hello.x64 binary missing:

(gdb) set follow-fork child
(gdb) r
Starting program: /home/dje/src/play/fork-exec-hello.x64
[New process 6671]
execl: No such file or directory
[Inferior 2 (process 6671) exited normally]
(gdb) i inf
  Num  Description       Executable
* 2    <null>            /home/dje/src/play/fork-exec-hello.x64
  1    <null>            /home/dje/src/play/fork-exec-hello.x64
(gdb) r
Starting program: /home/dje/src/play/fork-exec-hello.x64
[New process 6674]
execl: No such file or directory
[Inferior 3 (process 6674) exited normally]
(gdb) i inf
  Num  Description       Executable
* 3    <null>            /home/dje/src/play/fork-exec-hello.x64
  2    <null>            /home/dje/src/play/fork-exec-hello.x64
  1    <null>            /home/dje/src/play/fork-exec-hello.x64
(gdb) r
Starting program: /home/dje/src/play/fork-exec-hello.x64
[New process 6677]
execl: No such file or directory
[Inferior 4 (process 6677) exited normally]
(gdb) i inf
  Num  Description       Executable
* 4    <null>            /home/dje/src/play/fork-exec-hello.x64
  3    <null>            /home/dje/src/play/fork-exec-hello.x64
  2    <null>            /home/dje/src/play/fork-exec-hello.x64
  1    <null>            /home/dje/src/play/fork-exec-hello.x64
(gdb)

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