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README: Document dependencies for backtrace generation

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libcamera now has the ability to use libdw and libunwind to generate
backtraces, in addition to the glibc backtrace() function. libdw
provides the most detailed output and is highly recommended, but is
limited to parsing backtraces, it doesn't support capturing them.
libunwind and backtrace() provide both features. If backtrace() is
available, libunwind will not bring any improvement.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
This commit is contained in:
Laurent Pinchart 2021-10-13 00:32:08 +03:00
parent 5b39dc6d9b
commit 78e94065fc
1 changed files with 8 additions and 0 deletions
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README.rst
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@ -63,6 +63,14 @@ for the libcamera core: [required]
for IPA module signing: [required]
libgnutls28-dev openssl
for improved debugging: [optional]
libdw-dev libunwind-dev
libdw and libunwind provide backtraces to help debugging assertion
failures. Their functions overlap, libdw provides the most detailed
information, and libunwind is not needed if both libdw and the glibc
backtrace() function are available.
for the Raspberry Pi IPA: [optional]
libboost-dev