gdb_server: support File-I/O Remote Protocol Extension 02/1102/19
authorHsiangkai Wang <hsiangkai@gmail.com>
Wed, 2 Jan 2013 04:02:00 +0000 (12:02 +0800)
committerSpencer Oliver <spen@spen-soft.co.uk>
Wed, 7 Aug 2013 21:01:25 +0000 (21:01 +0000)
commit0a4c8990c29e61fd0c2796486519cdb256b8da3b
tree56a4d7b47b392b7da4fa1ad08a4d5261c3619a0e
parent80d412bafc03ce9a0418a2b98de2668b0f8de0e6
gdb_server: support File-I/O Remote Protocol Extension

The File I/O remote protocol extension allows the target to use the
host's file system and console I/O to perform various system calls.

To use the function, targets need to prepare two callback functions:
* get_gdb_finish_info: to get file I/O parameters from target
* gdb_fileio_end: pass file I/O response to target

As target is halted, gdb_server will try to get file-I/O information
from target through target_get_gdb_fileio_info(). If the callback function
returns ERROR_OK, gdb_server will initiate a file-I/O request to gdb.
After gdb finishes system call, gdb will pass response of the system call
to target through target_gdb_fileio_end() and continue to run(continue or step).

To implement the function, I add a new data structure in struct target,
called struct gdb_fileio_info, to record file I/O name and parameters.

Details refer to GDB manual "File-I/O Remote Protocol Extension"

Change-Id: I7f4d45e7c9e967b6d898dc79ba01d86bc46315d3
Signed-off-by: Hsiangkai Wang <hsiangkai@gmail.com>
Reviewed-on: http://openocd.zylin.com/1102
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
src/server/gdb_server.c
src/target/nds32.c
src/target/nds32.h
src/target/nds32_v3.c
src/target/nds32_v3_common.c
src/target/nds32_v3m.c
src/target/target.c
src/target/target.h
src/target/target_type.h