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author | Hsiangkai Wang <hsiangkai@gmail.com> | 2013-01-02 12:02:00 +0800 |
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committer | Spencer Oliver <spen@spen-soft.co.uk> | 2013-08-07 21:01:25 +0000 |
commit | 0a4c8990c29e61fd0c2796486519cdb256b8da3b (patch) | |
tree | 56a4d7b47b392b7da4fa1ad08a4d5261c3619a0e /src/target/nds32.h | |
parent | 80d412bafc03ce9a0418a2b98de2668b0f8de0e6 (diff) | |
download | riscv-openocd-0a4c8990c29e61fd0c2796486519cdb256b8da3b.zip riscv-openocd-0a4c8990c29e61fd0c2796486519cdb256b8da3b.tar.gz riscv-openocd-0a4c8990c29e61fd0c2796486519cdb256b8da3b.tar.bz2 |
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>
Diffstat (limited to 'src/target/nds32.h')
-rw-r--r-- | src/target/nds32.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/target/nds32.h b/src/target/nds32.h index b7e787c..8acd915 100644 --- a/src/target/nds32.h +++ b/src/target/nds32.h @@ -284,6 +284,18 @@ struct nds32 { /** Flag reporting whether virtual hosting is active. */ bool virtual_hosting; + /** Flag reporting whether continue/step hits syscall or not */ + bool hit_syscall; + + /** Value to be returned by virtual hosting SYS_ERRNO request. */ + int virtual_hosting_errno; + + /** Flag reporting whether syscall is aborted */ + bool virtual_hosting_ctrl_c; + + /** Record syscall ID for other operations to do special processing for target */ + int active_syscall_id; + /** Flag reporting whether global stop is active. */ bool global_stop; @@ -404,6 +416,10 @@ extern int nds32_resume(struct target *target, int current, uint32_t address, int handle_breakpoints, int debug_execution); extern int nds32_assert_reset(struct target *target); extern int nds32_init(struct nds32 *nds32); +extern int nds32_get_gdb_fileio_info(struct target *target, struct gdb_fileio_info *fileio_info); +extern int nds32_gdb_fileio_write_memory(struct nds32 *nds32, uint32_t address, + uint32_t size, const uint8_t *buffer); +extern int nds32_gdb_fileio_end(struct target *target, int retcode, int fileio_errno, bool ctrl_c); extern int nds32_reset_halt(struct nds32 *nds32); extern int nds32_login(struct nds32 *nds32); |