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tools: libbpf: don't return '.text' as a program for multi-function programs

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Make bpf_program__next() skip over '.text' section if object file
has pseudo calls.  The '.text' section is hardly a program in that
case, it's more of a storage for code of functions other than main.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Jakub Kicinski 2018-06-28 14:41:39 -07:00 committed by Daniel Borkmann
parent 9a94f277c4
commit eac7d84519
1 changed files with 14 additions and 2 deletions
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16
tools/lib/bpf/libbpf.c
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@ -1865,8 +1865,8 @@ void *bpf_object__priv(struct bpf_object *obj)
return obj ? obj->priv : ERR_PTR(-EINVAL);
}
struct bpf_program *
bpf_program__next(struct bpf_program *prev, struct bpf_object *obj)
static struct bpf_program *
__bpf_program__next(struct bpf_program *prev, struct bpf_object *obj)
{
size_t idx;
@ -1887,6 +1887,18 @@ bpf_program__next(struct bpf_program *prev, struct bpf_object *obj)
return &obj->programs[idx];
}
struct bpf_program *
bpf_program__next(struct bpf_program *prev, struct bpf_object *obj)
{
struct bpf_program *prog = prev;
do {
prog = __bpf_program__next(prog, obj);
} while (prog && bpf_program__is_function_storage(prog, obj));
return prog;
}
int bpf_program__set_priv(struct bpf_program *prog, void *priv,
bpf_program_clear_priv_t clear_priv)
{