libbpf: Fix determine_ptr_size() guessing #3094
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One strategy employed by libbpf to guess the pointer size is by finding
the size of "unsigned long" type. This is achieved by looking for a type
of with the expected name and checking its size.
Unfortunately, the C syntax is friendlier to humans than to computers
as there is some variety in how such a type can be named. Specifically,
gcc and clang do not use the same names for integer types in debug info:
- clang uses "unsigned long"
- gcc uses "long unsigned int"
Lookup all the names for such a type so that libbpf can hope to find the
information it wants.
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Douglas Raillard <douglas.raillard@arm.com>
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Master branch: e0491b1 |
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At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=644597 irrelevant now. Closing PR. |
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Pull request for series with
subject: libbpf: Fix determine_ptr_size() guessing
version: 3
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=644597