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| author | Steven Stallion <stallion@squareup.com> | 2016-07-22 15:43:11 -0500 |
|---|---|---|
| committer | Paul Fertser <fercerpav@gmail.com> | 2016-12-08 12:32:58 +0000 |
| commit | c0e7ccbd87cf491b065bf18bbdb6a73b741c2698 (patch) | |
| tree | 45c8c4311f61b1990a1dca7f00a499aea3d28302 /doc | |
| parent | dc0a009ef411e323f7626000dfe2c0dfd1b044e5 (diff) | |
| download | riscv-openocd-c0e7ccbd87cf491b065bf18bbdb6a73b741c2698.zip riscv-openocd-c0e7ccbd87cf491b065bf18bbdb6a73b741c2698.tar.gz riscv-openocd-c0e7ccbd87cf491b065bf18bbdb6a73b741c2698.tar.bz2 | |
semihosting: support fileio operation
This patch adds support for bridging semihosting to GDB's File-I/O
remote protocol extension. For the most part operations match up 1:1,
however some require a working area to complete successfully, namely
operations that devolve to read, stat, and gettimeofday.
A new command was added to enable support for fileio named `arm
semihosting_fileio`, which ensures that the default behavior remains
intact for those that prefer it.
Finally, redundant logging was removed from the target_arch_state
function; this permits ARM targets to quiesce log output when polling
for a fileio reply. This prevents filling the logs with halt/resume
messages when using semihosting fileio.
Change-Id: Ifbb864fc2373336a501cc0332675b887b552e1ee
Signed-off-by: Steven Stallion <stallion@squareup.com>
Reviewed-on: http://openocd.zylin.com/3566
Tested-by: jenkins
Reviewed-by: Steven Stallion <sstallion@gmail.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/openocd.texi | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/doc/openocd.texi b/doc/openocd.texi index 372683a..1cca4ab 100644 --- a/doc/openocd.texi +++ b/doc/openocd.texi @@ -7404,6 +7404,17 @@ requests by using a special SVC instruction that is trapped at the Supervisor Call vector by OpenOCD. @end deffn +@deffn Command {arm semihosting_fileio} [@option{enable}|@option{disable}] +@cindex ARM semihosting +Display status of semihosting fileio, after optionally changing that +status. + +Enabling this option forwards semihosting I/O to GDB process using the +File-I/O remote protocol extension. This is especially useful for +interacting with remote files or displaying console messages in the +debugger. +@end deffn + @section ARMv4 and ARMv5 Architecture @cindex ARMv4 @cindex ARMv5 |