[pushed] Re: [PATCH 0/8] Allow making GDB not automatically connect to the native target (and add "target native").

[Pedro Alves <palves at redhat dot com>]

I've pushed this in now.

Pedro Alves

On 03/17/2014 03:22 PM, Pedro Alves wrote:
> Sometimes it's useful to be able to disable the automatic connection
> to the native target.  E.g., sometimes GDB disconnects from the
> extended-remote target I was debugging, without me noticing it, and
> then I do "run".  That starts the program locally, and only after a
> little head scratch session do I figure out the program is running
> locally instead of remotely as intended.  Same thing with "attach",
> "info os", etc.
> 
> With this series, we now can have this instead:
> 
>  (gdb) set auto-connect-native-target off
>  (gdb) target extended-remote :9999
>  ...
>  *gdb disconnects*
>  (gdb) run
>  Don't know how to run.  Try "help target".
> 
> To still be able to connect to the native target with
> auto-connect-native-target set to off, I've renamed all native targets
> to "target native", and made "target native" work instead of erroring
> out as today.
> 
> E.g., before, on GNU/Linux and most native targets, the native target
> is called "child", and trying to open it yields:
> 
>  (gdb) target child
>  Use the "run" command to start a child process.
> 
> After the series we get:
> 
>  (gdb) target native
>  Done.  Use the "run" command to start a process.
>  (gdb) maint print target-stack
>  The current target stack is:
>    - native (Native process)
>    - exec (Local exec file)
>    - None (None)
>  (gdb) run
>  Starting program: ./a.out
>  ...
> 
> I've also wanted this for the testsuite, when running against the
> native-extended-gdbserver.exp board (runs against gdbserver in
> extended-remote mode).  With that board, it's always a bug to launch a
> program with the native target.  Turns out we still have one such case
> this series catches:
> 
>  (gdb) break main
>  Breakpoint 1 at 0x4009e5: file ../../../src/gdb/testsuite/gdb.base/coremaker.c, line 138.
>  (gdb) run
>  Don't know how to run.  Try "help target".
>  (gdb) FAIL: gdb.base/corefile.exp: run: with core
> 
> For convenience, I've also put this at:
>   git@github.com:palves/gdb.git target_native_v1
> 
> Pedro Alves (8):
>   Rename "target djgpp" -> "target native"
>   Rename "target darwin-child" -> "target native"
>   Rename "target GNU" -> "target native"
>   Windows: Rename "target child" -> "target native"
>   nto-procfs.c: Add "target native".
>   go32-nat.c: Don't override to_open.
>   NEWS: Mention native target renames.
>   Allow making GDB not automatically connect to the native target.
> 
>  gdb/NEWS                                           |  21 +++
>  gdb/darwin-nat.c                                   |  10 +-
>  gdb/doc/gdb.texinfo                                |  58 ++++++
>  gdb/gnu-nat.c                                      |   8 +-
>  gdb/go32-nat.c                                     |  16 +-
>  gdb/inf-child.c                                    |  62 +++++-
>  gdb/inf-child.h                                    |  11 ++
>  gdb/inf-ptrace.c                                   |   6 +-
>  gdb/inf-ttrace.c                                   |  10 +-
>  gdb/linux-nat.c                                    |   8 +
>  gdb/nto-procfs.c                                   |  97 +++++++---
>  gdb/procfs.c                                       |  13 +-
>  gdb/target.c                                       |  48 ++++-
>  gdb/testsuite/boards/native-extended-gdbserver.exp |   2 +
>  .../gdb.base/auto-connect-native-target.c          |  23 +++
>  .../gdb.base/auto-connect-native-target.exp        | 209 +++++++++++++++++++++
>  gdb/windows-nat.c                                  |  10 +-
>  17 files changed, 531 insertions(+), 81 deletions(-)
>  create mode 100644 gdb/testsuite/gdb.base/auto-connect-native-target.c
>  create mode 100644 gdb/testsuite/gdb.base/auto-connect-native-target.exp
> 


-- 
Pedro Alves