diff options
| author | Tom Rini <[email protected]> | 2022-04-11 10:15:06 -0400 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2022-04-11 10:15:06 -0400 |
| commit | c45d38d6515811c05469fe4df6d351d7e4f990f0 (patch) | |
| tree | f965f66f82242027746ba8bba0abb442aeed09be /doc | |
| parent | b598957206e541b3f8876ae34a15fac6da90dcef (diff) | |
| parent | 02fc867810866904966d45c3e290810c4a196543 (diff) | |
Merge branch '2022-04-11-initial-valgrind-support'
To quote the author:
This series adds support for running valgrind against U-Boot's internal
malloc. This allows for much more useful reports to be generated.
Some example output of valgrind run against u-boot/master with this
branch applied may be found at [1]. Note that valgrind gives up around
acpi. This feature still needs a lot of work on suppressions/hints to
filter out the noise properly.
[1] https://gist.githubusercontent.com/Forty-Bot/199bf06f9cdd6871e54f8f484c16e111/raw/2a2f99108eef84b48e27a54332f3f71f4e2e5342/gistfile1.txt
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/arch/sandbox.rst | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/doc/arch/sandbox.rst b/doc/arch/sandbox.rst index f8804e1f414..e1119492b45 100644 --- a/doc/arch/sandbox.rst +++ b/doc/arch/sandbox.rst @@ -477,14 +477,20 @@ Using valgrind / memcheck It is possible to run U-Boot under valgrind to check memory allocations:: - valgrind u-boot + valgrind ./u-boot + +For more detailed results, enable `CONFIG_VALGRIND`. There are many false +positives due to `malloc` itself. Suppress these with:: + + valgrind --suppressions=scripts/u-boot.supp ./u-boot If you are running sandbox SPL or TPL, then valgrind will not by default notice when U-Boot jumps from TPL to SPL, or from SPL to U-Boot proper. To -fix this, use:: - - valgrind --trace-children=yes u-boot +fix this, use `--trace-children=yes`. To show who alloc'd some troublesome +memory, use `--track-origins=yes`. To uncover possible errors, try running all +unit tests with:: + valgrind --track-origins=yes --suppressions=scripts/u-boot.supp ./u-boot -Tc 'ut all' Testing ------- |