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authorH.J. Lu <hjl.tools@gmail.com>2015-10-22 04:56:10 -0700
committerH.J. Lu <hjl.tools@gmail.com>2015-10-22 04:56:57 -0700
commit2891b491040ac84dfe0013454b2aa834de7b539c (patch)
tree623066a0eabe1405028b7462c884492a4ee71efc /elfcpp
parent493d4b48decc2b3c5fe9d2df68bcee67fdd8b7cb (diff)
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Gold: Don't fail on R_X86_64_[REX_]GOTPCRELX relocations
This patch updates gold to treat the R_X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX relocations proposed in https://groups.google.com/forum/#!topic/x86-64-abi/n9AWHogmVY0 the same as R_X86_64_GOTPCREL. FIXME: Gold should perform the transformations as suggested. elfcpp/ * x86_64.h (R_X86_64_GOTPCRELX): New. (R_X86_64_REX_GOTPCRELX): Likewise. gold/ * x86_64.cc (Target_x86_64<size>::Scan::get_reference_flags): Treat R_X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX the same as R_X86_64_GOTPCREL. (Target_x86_64<size>::Scan::local): Likewise. (Target_x86_64<size>::Scan::possible_function_pointer_reloc): Likewise. (Target_x86_64<size>::Scan::global): Likewise. (Target_x86_64<size>::Relocate::relocate): Likewise. (Target_x86_64<size>::Relocatable_size_for_reloc::get_size_for_reloc): Likewise.
Diffstat (limited to 'elfcpp')
-rw-r--r--elfcpp/ChangeLog5
-rw-r--r--elfcpp/x86_64.h4
2 files changed, 9 insertions, 0 deletions
diff --git a/elfcpp/ChangeLog b/elfcpp/ChangeLog
index c0f1698..24df27b 100644
--- a/elfcpp/ChangeLog
+++ b/elfcpp/ChangeLog
@@ -1,5 +1,10 @@
2015-10-22 H.J. Lu <hongjiu.lu@intel.com>
+ * x86_64.h (R_X86_64_GOTPCRELX): New.
+ (R_X86_64_REX_GOTPCRELX): Likewise.
+
+2015-10-22 H.J. Lu <hongjiu.lu@intel.com>
+
* i386.h (R_386_GOT32X): New.
2015-10-13 H.J. Lu <hongjiu.lu@intel.com>
diff --git a/elfcpp/x86_64.h b/elfcpp/x86_64.h
index e97ff52..52cb9ae 100644
--- a/elfcpp/x86_64.h
+++ b/elfcpp/x86_64.h
@@ -94,6 +94,10 @@ enum
R_X86_64_RELATIVE64 = 38, // 64-bit adjust by program base
R_X86_64_PC32_BND = 39, // PC relative 32 bit signed with BND prefix
R_X86_64_PLT32_BND = 40, // 32 bit PLT address with BND prefix
+ R_X86_64_GOTPCRELX = 41, // 32 bit signed PC relative offset to GOT
+ // without REX prefix, relaxable.
+ R_X86_64_REX_GOTPCRELX = 42, // 32 bit signed PC relative offset to GOT
+ // with REX prefix, relaxable.
// GNU vtable garbage collection extensions.
R_X86_64_GNU_VTINHERIT = 250,
R_X86_64_GNU_VTENTRY = 251