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| author | Tim Newsome <tim@sifive.com> | 2016-10-05 07:57:38 -0700 |
|---|---|---|
| committer | Andreas Fritiofson <andreas.fritiofson@gmail.com> | 2016-10-30 20:40:56 +0000 |
| commit | 19df456a79c912b9e2162ef05c1fd0c02ec7b14a (patch) | |
| tree | 00b835043c1a18f0cf88adb9d38844ccb2a24b28 /tcl/board | |
| parent | 4b50872ffe1375c57bc82122dc76ed0324ab91ef (diff) | |
| download | riscv-openocd-19df456a79c912b9e2162ef05c1fd0c02ec7b14a.zip riscv-openocd-19df456a79c912b9e2162ef05c1fd0c02ec7b14a.tar.gz riscv-openocd-19df456a79c912b9e2162ef05c1fd0c02ec7b14a.tar.bz2 | |
Perform small writes before sending OK.
To speed up downloads, OpenOCD sends gdb OK when a write is received,
even before the write has actually occurred. The failure is then
returned for the next write. That leads to the following confusing
behavior:
```
(gdb) p/x *((int*)0xdeadbeef)=8675309
$2 = 0x845fed
(gdb) p/x *((int*)0x80000000)=6874742
Cannot access memory at address 0x80000000
```
While it's actually the first write that failed.
This change hacks around this problem by not sending OK for small writes
(len<8) until the write has actually occurred. This does not impact
download speed, since during downloads (almost) all writes will have
much larger length.
Change-Id: I1f8b9bb19b0707487f840df6871e372e4ba228dd
Signed-off-by: Tim Newsome <tim@sifive.com>
Reviewed-on: http://openocd.zylin.com/3803
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Diffstat (limited to 'tcl/board')
0 files changed, 0 insertions, 0 deletions