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path: root/tools/lib/bpf/bpf_prog_linfo.c
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Diffstat (limited to 'tools/lib/bpf/bpf_prog_linfo.c')
-rw-r--r--tools/lib/bpf/bpf_prog_linfo.c21
1 files changed, 9 insertions, 12 deletions
diff --git a/tools/lib/bpf/bpf_prog_linfo.c b/tools/lib/bpf/bpf_prog_linfo.c
index bafca49cb1e6..5c503096ef43 100644
--- a/tools/lib/bpf/bpf_prog_linfo.c
+++ b/tools/lib/bpf/bpf_prog_linfo.c
@@ -8,9 +8,6 @@
#include "libbpf.h"
#include "libbpf_internal.h"
-/* make sure libbpf doesn't use kernel-only integer typedefs */
-#pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
-
struct bpf_prog_linfo {
void *raw_linfo;
void *raw_jited_linfo;
@@ -109,7 +106,7 @@ struct bpf_prog_linfo *bpf_prog_linfo__new(const struct bpf_prog_info *info)
nr_linfo = info->nr_line_info;
if (!nr_linfo)
- return NULL;
+ return errno = EINVAL, NULL;
/*
* The min size that bpf_prog_linfo has to access for
@@ -117,11 +114,11 @@ struct bpf_prog_linfo *bpf_prog_linfo__new(const struct bpf_prog_info *info)
*/
if (info->line_info_rec_size <
offsetof(struct bpf_line_info, file_name_off))
- return NULL;
+ return errno = EINVAL, NULL;
prog_linfo = calloc(1, sizeof(*prog_linfo));
if (!prog_linfo)
- return NULL;
+ return errno = ENOMEM, NULL;
/* Copy xlated line_info */
prog_linfo->nr_linfo = nr_linfo;
@@ -177,7 +174,7 @@ struct bpf_prog_linfo *bpf_prog_linfo__new(const struct bpf_prog_info *info)
err_free:
bpf_prog_linfo__free(prog_linfo);
- return NULL;
+ return errno = EINVAL, NULL;
}
const struct bpf_line_info *
@@ -189,11 +186,11 @@ bpf_prog_linfo__lfind_addr_func(const struct bpf_prog_linfo *prog_linfo,
const __u64 *jited_linfo;
if (func_idx >= prog_linfo->nr_jited_func)
- return NULL;
+ return errno = ENOENT, NULL;
nr_linfo = prog_linfo->nr_jited_linfo_per_func[func_idx];
if (nr_skip >= nr_linfo)
- return NULL;
+ return errno = ENOENT, NULL;
start = prog_linfo->jited_linfo_func_idx[func_idx] + nr_skip;
jited_rec_size = prog_linfo->jited_rec_size;
@@ -201,7 +198,7 @@ bpf_prog_linfo__lfind_addr_func(const struct bpf_prog_linfo *prog_linfo,
(start * jited_rec_size);
jited_linfo = raw_jited_linfo;
if (addr < *jited_linfo)
- return NULL;
+ return errno = ENOENT, NULL;
nr_linfo -= nr_skip;
rec_size = prog_linfo->rec_size;
@@ -228,13 +225,13 @@ bpf_prog_linfo__lfind(const struct bpf_prog_linfo *prog_linfo,
nr_linfo = prog_linfo->nr_linfo;
if (nr_skip >= nr_linfo)
- return NULL;
+ return errno = ENOENT, NULL;
rec_size = prog_linfo->rec_size;
raw_linfo = prog_linfo->raw_linfo + (nr_skip * rec_size);
linfo = raw_linfo;
if (insn_off < linfo->insn_off)
- return NULL;
+ return errno = ENOENT, NULL;
nr_linfo -= nr_skip;
for (i = 0; i < nr_linfo; i++) {