diff mbox series

powerpc: Do not run IFUNC resolvers for LD_DEBUG=unused [BZ #24214]

Message ID 20191217185816.29521-1-adhemerval.zanella@linaro.org
State Accepted
Commit 0331bffe1be698d32c3b4a93b6e7f02d1f1b47fb
Headers show
Series powerpc: Do not run IFUNC resolvers for LD_DEBUG=unused [BZ #24214] | expand

Commit Message

Adhemerval Zanella Netto Dec. 17, 2019, 6:58 p.m. UTC 
This patch adds the missing bits for powerpc and fixes both
tst-ifunc-fault-lazy and tst-ifunc-fault-bindnow failures on
powerpc-linux-gnu.

Checked on powerpc-linux-gnu and powerpc-linux-gnu-power4.
---
 sysdeps/powerpc/powerpc32/dl-machine.c | 5 +++--
 sysdeps/powerpc/powerpc32/dl-machine.h | 5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

-- 
2.17.1

Comments

Florian Weimer Dec. 18, 2019, 4:21 p.m. UTC | #1 
* Adhemerval Zanella:

> This patch adds the missing bits for powerpc and fixes both

> tst-ifunc-fault-lazy and tst-ifunc-fault-bindnow failures on

> powerpc-linux-gnu.


Thanks.  Patch looks good.

Florian
Tulio Magno Quites Machado Filho Dec. 18, 2019, 8:39 p.m. UTC | #2 
Adhemerval Zanella <adhemerval.zanella@linaro.org> writes:

> This patch adds the missing bits for powerpc and fixes both

> tst-ifunc-fault-lazy and tst-ifunc-fault-bindnow failures on

> powerpc-linux-gnu.

>

> Checked on powerpc-linux-gnu and powerpc-linux-gnu-power4.


Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>


Thanks!

-- 
Tulio Magno
diff mbox series

Patch

diff --git a/sysdeps/powerpc/powerpc32/dl-machine.c b/sysdeps/powerpc/powerpc32/dl-machine.c
index d3ce2c17a9..a90cbc1ae3 100644
--- a/sysdeps/powerpc/powerpc32/dl-machine.c
+++ b/sysdeps/powerpc/powerpc32/dl-machine.c
@@ -414,7 +414,7 @@  __process_machine_rela (struct link_map *map,
 			const Elf32_Sym *refsym,
 			Elf32_Addr *const reloc_addr,
 			Elf32_Addr const finaladdr,
-			int rinfo)
+			int rinfo, bool skip_ifunc)
 {
   union unaligned
     {
@@ -434,7 +434,8 @@  __process_machine_rela (struct link_map *map,
       return;
 
     case R_PPC_IRELATIVE:
-      *reloc_addr = ((Elf32_Addr (*) (void)) finaladdr) ();
+      if (__glibc_likely (!skip_ifunc))
+	*reloc_addr = ((Elf32_Addr (*) (void)) finaladdr) ();
       return;
 
     case R_PPC_UADDR32:
diff --git a/sysdeps/powerpc/powerpc32/dl-machine.h b/sysdeps/powerpc/powerpc32/dl-machine.h
index 528690107b..4b1265282e 100644
--- a/sysdeps/powerpc/powerpc32/dl-machine.h
+++ b/sysdeps/powerpc/powerpc32/dl-machine.h
@@ -273,7 +273,8 @@  extern void __process_machine_rela (struct link_map *map,
 				    const Elf32_Sym *refsym,
 				    Elf32_Addr *const reloc_addr,
 				    Elf32_Addr finaladdr,
-				    int rinfo) attribute_hidden;
+				    int rinfo, bool skip_ifunc)
+  attribute_hidden;
 
 /* Call _dl_signal_error when a resolved value overflows a relocated area.  */
 extern void _dl_reloc_overflow (struct link_map *map,
@@ -436,7 +437,7 @@  elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
 
     default:
       __process_machine_rela (map, reloc, sym_map, sym, refsym,
-			      reloc_addr, value, r_type);
+			      reloc_addr, value, r_type, skip_ifunc);
     }
 }