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| author | Doug Evans <dje@google.com> | 2011-12-16 19:06:38 +0000 |
|---|---|---|
| committer | Doug Evans <dje@google.com> | 2011-12-16 19:06:38 +0000 |
| commit | e0f9f062204827dd5f8a01ab9252ec29273cd3b0 (patch) | |
| tree | b59a5c9d50f4d48b63a75b4d1a63213eee7c7c1d /gdb/doc | |
| parent | e77616d77a34e00c99d803b2324e17ece340ac5e (diff) | |
| download | gdb-e0f9f062204827dd5f8a01ab9252ec29273cd3b0.zip gdb-e0f9f062204827dd5f8a01ab9252ec29273cd3b0.tar.gz gdb-e0f9f062204827dd5f8a01ab9252ec29273cd3b0.tar.bz2 | |
* NEWS: Add entry for stdio gdbserver.
gdbserver/
* linux-low.c (linux_create_inferior): If stdio connection,
redirect stdin from /dev/null, stdout to stderr.
* remote-utils.c (remote_is_stdio): New static global.
(remote_connection_is_stdio): New function.
(remote_prepare): Handle stdio connection.
(remote_open): Ditto.
(remote_close): Don't close stdin for stdio connections.
(read_prim,write_prim): New functions. Replace all calls to
read/write to these.
* server.c (main): Watch for "-" argument. Move call to
remote_prepare before start_inferior.
* server.h (STDIO_CONNECTION_NAME): New macro.
(remote_connection_is_stdio): Declare.
doc/
* gdb.texinfo (Server): Document -/stdio argument to gdbserver.
testsuite/
* lib/gdbserver-support.exp (gdb_target_cmd): Recognize stdio
gdbserver output.
(gdbserver_default_get_remote_address): New function.
(gdbserver_start): Call gdb,get_remote_address to compute argument
to "target remote" command.
Diffstat (limited to 'gdb/doc')
| -rw-r--r-- | gdb/doc/ChangeLog | 4 | ||||
| -rw-r--r-- | gdb/doc/gdb.texinfo | 23 |
2 files changed, 25 insertions, 2 deletions
diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog index e8ff5c8..8451302 100644 --- a/gdb/doc/ChangeLog +++ b/gdb/doc/ChangeLog @@ -1,3 +1,7 @@ +2011-12-16 Doug Evans <dje@google.com> + + * gdb.texinfo (Server): Document -/stdio argument to gdbserver. + 2011-12-16 Phil Muldoon <pmuldoon@redhat.com> * gdb.texinfo (Python Commands): Remove "maint set/show print diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo index 4787b82..4a7ae6e 100644 --- a/gdb/doc/gdb.texinfo +++ b/gdb/doc/gdb.texinfo @@ -16766,8 +16766,10 @@ syntax is: target> gdbserver @var{comm} @var{program} [ @var{args} @dots{} ] @end smallexample -@var{comm} is either a device name (to use a serial line) or a TCP -hostname and portnumber. For example, to debug Emacs with the argument +@var{comm} is either a device name (to use a serial line), or a TCP +hostname and portnumber, or @code{-} or @code{stdio} to use +stdin/stdout of @code{gdbserver}. +For example, to debug Emacs with the argument @samp{foo.txt} and communicate with @value{GDBN} over the serial port @file{/dev/com1}: @@ -16796,6 +16798,23 @@ conflicts with another service, @code{gdbserver} prints an error message and exits.} You must use the same port number with the host @value{GDBN} @code{target remote} command. +The @code{stdio} connection is useful when starting @code{gdbserver} +with ssh: + +@smallexample +(gdb) target remote | ssh -T hostname gdbserver - hello +@end smallexample + +The @samp{-T} option to ssh is provided because we don't need a remote pty, +and we don't want escape-character handling. Ssh does this by default when +a command is provided, the flag is provided to make it explicit. +You could elide it if you want to. + +Programs started with stdio-connected gdbserver have @file{/dev/null} for +@code{stdin}, and @code{stdout},@code{stderr} are sent back to gdb for +display through a pipe connected to gdbserver. +Both @code{stdout} and @code{stderr} use the same pipe. + @subsubsection Attaching to a Running Program @cindex attach to a program, @code{gdbserver} @cindex @option{--attach}, @code{gdbserver} option |