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authorAndreas Schwab <schwab@redhat.com>2011-10-04 16:10:16 +0200
committerAndreas Schwab <schwab@redhat.com>2011-10-05 14:35:40 +0200
commit3a62d00d408e9ec19479b6c7d39e89021061f9cd (patch)
tree6f2c708cb3da2fe6d0cbcddfe096cc7e7a8051ba /sysdeps/x86_64/dl-machine.h
parent68577918437e2ccfd6bd2836892f59ef42994963 (diff)
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Don't call ifunc functions in trace mode
Diffstat (limited to 'sysdeps/x86_64/dl-machine.h')
-rw-r--r--sysdeps/x86_64/dl-machine.h11
1 files changed, 7 insertions, 4 deletions
diff --git a/sysdeps/x86_64/dl-machine.h b/sysdeps/x86_64/dl-machine.h
index 4c31ac5da8..6d66ff69c7 100644
--- a/sysdeps/x86_64/dl-machine.h
+++ b/sysdeps/x86_64/dl-machine.h
@@ -255,7 +255,7 @@ auto inline void
 __attribute__ ((always_inline))
 elf_machine_rela (struct link_map *map, const Elf64_Rela *reloc,
 		  const Elf64_Sym *sym, const struct r_found_version *version,
-		  void *const reloc_addr_arg)
+		  void *const reloc_addr_arg, int skip_ifunc)
 {
   Elf64_Addr *const reloc_addr = reloc_addr_arg;
   const unsigned long int r_type = ELF64_R_TYPE (reloc->r_info);
@@ -293,7 +293,8 @@ elf_machine_rela (struct link_map *map, const Elf64_Rela *reloc,
       if (sym != NULL
 	  && __builtin_expect (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC,
 			       0)
-	  && __builtin_expect (sym->st_shndx != SHN_UNDEF, 1))
+	  && __builtin_expect (sym->st_shndx != SHN_UNDEF, 1)
+	  && __builtin_expect (!skip_ifunc, 1))
 	value = ((Elf64_Addr (*) (void)) value) ();
 
       switch (r_type)
@@ -459,7 +460,8 @@ elf_machine_rela_relative (Elf64_Addr l_addr, const Elf64_Rela *reloc,
 auto inline void
 __attribute ((always_inline))
 elf_machine_lazy_rel (struct link_map *map,
-		      Elf64_Addr l_addr, const Elf64_Rela *reloc)
+		      Elf64_Addr l_addr, const Elf64_Rela *reloc,
+		      int skip_ifunc)
 {
   Elf64_Addr *const reloc_addr = (void *) (l_addr + reloc->r_offset);
   const unsigned long int r_type = ELF64_R_TYPE (reloc->r_info);
@@ -486,7 +488,8 @@ elf_machine_lazy_rel (struct link_map *map,
   else if (__builtin_expect (r_type == R_X86_64_IRELATIVE, 0))
     {
       Elf64_Addr value = map->l_addr + reloc->r_addend;
-      value = ((Elf64_Addr (*) (void)) value) ();
+      if (__builtin_expect (!skip_ifunc, 1))
+	value = ((Elf64_Addr (*) (void)) value) ();
       *reloc_addr = value;
     }
   else