[...]
+
+ /*
+ * Find out the .stapsdt.base section.
+ * This scn will help us to handle prelinking (if present).
+ * Compare the retrieved file offset of the base section with the
+ * base address in the description of the SDT note. If its different,
+ * then accordingly, adjust the note location.
+ */
+ if (elf_section_by_name(elf, &ehdr, &shdr, SDT_BASE_SCN, NULL))
+ base_off = shdr.sh_offset;
+ if (base_off) {
+ if (tmp->bit32)
+ key->addr.a32[0] = tmp->addr.a32[0] + base_off -
+ tmp->addr.a32[1];
+ else
+ key->addr.a64[0] = tmp->addr.a64[0] + base_off -
+ tmp->addr.a64[1];
+ }
+ key->bit32 = tmp->bit32;
+}
+
+int search_sdt_note(struct sdt_note *key, struct list_head *sdt_notes,
+ const char *target)
Hmm, this interface looks very odd.
- This just finds the first matched sdt_note entry instead of the list.
In that case, we don't need to pass the list_head.
- If the purpose is just counting the number of matched entries (or just
checking existence), we also don't need the list. Just returning the
number is enough.
I recommend you to remove the "sdt_notes", and make the caller check
key->addr is set.