[binutils-gdb] [ARM] FDPIC: Make _GLOBAL_OFFSET_TABLE_ a relative symbol

Christophe Lyon clyon@sourceware.org
Wed Apr 25 21:18:00 GMT 2018


https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=fac7bd6475c4058e7c1e0df29dac50579e427b34

commit fac7bd6475c4058e7c1e0df29dac50579e427b34
Author: Christophe Lyon <christophe.lyon@st.com>
Date:   Tue Mar 20 10:55:53 2018 +0100

    [ARM] FDPIC: Make _GLOBAL_OFFSET_TABLE_ a relative symbol
    
    2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
    	Mickaël Guêné  <mickael.guene@st.com>
    
    	bfd/
    	* elf32-arm.c (elf32_arm_finish_dynamic_symbol): Handle
    	_GLOBAL_OFFSET_TABLE_ in FDPIC mode.

Diff:
---
 bfd/ChangeLog   | 6 ++++++
 bfd/elf32-arm.c | 6 +++---
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 766341a..84d0891 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,6 +1,12 @@
 2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
 	Mickaël Guêné  <mickael.guene@st.com>
 
+	* elf32-arm.c (elf32_arm_finish_dynamic_symbol): Handle
+	_GLOBAL_OFFSET_TABLE_ in FDPIC mode.
+
+2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
+	Mickaël Guêné  <mickael.guene@st.com>
+
 	* elf32-arm.c (bfd_elf32_arm_set_target_params): Handle FDPIC case
 	for R_ARM_TARGET2.
 
diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c
index c2f4804..b72e397 100644
--- a/bfd/elf32-arm.c
+++ b/bfd/elf32-arm.c
@@ -17086,10 +17086,10 @@ elf32_arm_finish_dynamic_symbol (bfd * output_bfd,
     }
 
   /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute.  On VxWorks,
-     the _GLOBAL_OFFSET_TABLE_ symbol is not absolute: it is relative
-     to the ".got" section.  */
+     and for FDPIC, the _GLOBAL_OFFSET_TABLE_ symbol is not absolute:
+     it is relative to the ".got" section.  */
   if (h == htab->root.hdynamic
-      || (!htab->vxworks_p && h == htab->root.hgot))
+      || (!htab->fdpic_p && !htab->vxworks_p && h == htab->root.hgot))
     sym->st_shndx = SHN_ABS;
 
   return TRUE;



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