Do not load zero-length function symbols

91fc7216 · Teng Qin · Brenden Blanco · 488c119e · 91fc7216
Commit 91fc7216 authored Sep 13, 2017 by Teng Qin Committed by Brenden Blanco Sep 15, 2017
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Showing with 4 additions and 2 deletions

src/cc/bcc_elf.c src/cc/bcc_elf.c +4 -2

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--- a/src/cc/bcc_elf.c
+++ b/src/cc/bcc_elf.c
@@ -178,8 +178,10 @@ static int list_in_scn(Elf *e, Elf_Scn *section, size_t stridx, size_t symsize,
      if (sym.st_value == 0)
        continue;
-      uint32_t flag = 1 << ELF_ST_TYPE(sym.st_info);
+      uint32_t st_type = ELF_ST_TYPE(sym.st_info);
-      if (!(option->use_symbol_type & flag))
+      if (sym.st_size == 0 && (st_type == STT_FUNC || st_type == STT_GNU_IFUNC))
+        continue;
+      if (!(option->use_symbol_type & (1 << st_type)))
        continue;
      if (callback(name, sym.st_value, sym.st_size, payload) < 0)