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| author | Sean Anderson <seanga2@gmail.com> | 2022-03-23 14:04:50 -0400 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2022-04-11 10:00:30 -0400 |
| commit | 02fc867810866904966d45c3e290810c4a196543 (patch) | |
| tree | f965f66f82242027746ba8bba0abb442aeed09be /doc | |
| parent | bdaeea1b6863b0ec80f2d4bc15d50b8d16efa708 (diff) | |
| download | u-boot-02fc867810866904966d45c3e290810c4a196543.tar.gz u-boot-02fc867810866904966d45c3e290810c4a196543.tar.bz2 u-boot-02fc867810866904966d45c3e290810c4a196543.zip | |
doc: sandbox: Document how to run sandbox with valgrind
This documents how to get more detailed results from valgrind made possible
by the last two commits.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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 f8804e1f41..e1119492b4 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 ------- |