Re: [PATCH v2] libbpf: Fix determine_ptr_size() guessing

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On 5/23/22 3:29 AM, Douglas RAILLARD wrote:
From: Douglas Raillard <douglas.raillard@xxxxxxx>

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 name in debug info.

Lookup all the names for such a type so that libbpf can hope to find the
information it wants.

Signed-off-by: Douglas Raillard <douglas.raillard@xxxxxxx>

Acked-by: Yonghong Song <yhs@xxxxxx>



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