Commit graph

10 commits

Author SHA1 Message Date
Patrick Delaunay
353df8d3c3 test: correct the test prefix in ut cmd_mem
Align the prefix used in cmd_ut_category function and name of tests
for ut mem.
This patch solves the issues detected by "make qcheck" after previous
patch.

Fixes: 550a9e7902 ("cmd: Update the memory-search command")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-01-16 14:49:09 -05:00
Simon Glass
2c02152a8e setexpr: Add support for strings
Add support for dealing with string operands, including reading a string
from memory into an environment variable and concatenating two strings.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Marek Behún <marek.behun@nic.cz>
2020-12-01 10:33:38 -05:00
Simon Glass
8f4aa7ddb9 setexpr: Correct buffer overflow bug and enable tests
At present when more than one substitution is made this function
overwrites its buffers. Fix this bug and update the tests now that they
can pass.

Also update the debug code to show all substrings, since at present it
omits the final one.

Fixes: 855f18ea0e ("setexpr: add regex substring matching and substitution")
Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-01 10:33:38 -05:00
Simon Glass
9528229f22 setexpr: Correct dropping of final unmatched string
At present the 'nlen' variable increases with each loop. If the previous
loop had back references, then subsequent loops without back references
use the wrong value of nlen. The value is larger, meaning that the string
terminator from nbuf is copied along to the main buffer, thus terminating
the string prematurely.

This leads to the final result being truncated, e.g. missing the last
(unmatched) part of the string. So "match match tail" become
"replaced replaced" instead of "replaced replaced tail".

Fix this by resetting nlen to the correct value each time around the lop.

Fixes: 855f18ea0e ("setexpr: add regex substring matching and substitution")
Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-01 10:33:38 -05:00
Simon Glass
d422c77ae8 setexpr: Add some tests for buffer overflow and backref
Add tests to check for buffer overflow using simple replacement as well
as back references. At present these don't fully pass.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-01 10:33:38 -05:00
Simon Glass
e713124e35 test: Add some setexpr regex tests
Add tests for the setexpr regex commands.

Note that these tests currently crash on sandbox due to an existing bug in
the setexpr implementation, so two of the tests are commented out.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-01 10:33:38 -05:00
Simon Glass
25a43ac84a setexpr: Add explicit support for 32- and 64-bit ints
At present this function assumes that a size of 4 refers to a ulong. This
is true on 32-bit machines but not commonly on 64-bit machines.

This means that the 'l' specify does not work correctly with setexpr.

Add an explicit case for 32-bit values so that 64-bit machines can still
use the 'l' specifier. On 32-bit machines, 64-bit is still not supported.

This corrects the operation of the default size (which is 4 for setexpr),
so update the tests accordingly.

The original code for reading from memory was included in 47ab5ad145
("cmd_setexpr: allow memory addresses in expressions") but I am not adding
a Fixes: tag since that code was not written with 64-bit machines in mind.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-01 10:33:38 -05:00
Simon Glass
90a9901764 test: Add some tests for setexpr
This command currently has no tests. Add some for basic assignment and the
integer operations.

Note that the default size for setexpr is ulong, which varies depending on
the build machine. So for sandbox on a 64-bit host, this means that the
default size is 64 bits.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-01 10:33:38 -05:00
Simon Glass
550a9e7902 cmd: Update the memory-search command
Add various fixes and improvements to this command that were missed in
the original version. Unfortunately I forgot to send v2.

- Fix Kconfig name
- Use a separate variable for the remaining search length
- Correct a minor bug
- Move into a separate test suite
- Add -q flag to the 'quiet' test to test operation when console is enabled
- Enable the feature for sandbox

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-07 22:31:32 -04:00
Simon Glass
bdded2015c cmd: Add a memory-search command
It is useful to be able to find hex values and strings in a memory range.
Add a command to support this.

cmd: Fix 'md' and add a memory-search command
At present 'md.q' is broken. This series provides a fix for this. It also
implements a new memory-search command called 'ms'. It allows searching
memory for hex and string data.
END

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-07-08 17:21:46 -04:00