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old-cross-binutils/ld/testsuite
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H.J. Lu d5597ebccc i386: Allow copy relocs for building PIE 
This patch allows copy relocs for R_386_GOTOFF relocations in PIE.  For

extern int glob_a;
int foo ()
{
  return glob_a;
}

compiler now can optimize it from

	call	__x86.get_pc_thunk.ax
	addl	$_GLOBAL_OFFSET_TABLE_, %eax
	movl	glob_a@GOT(%eax), %eax
	movl	(%eax), %eax
	ret

to

	call	__x86.get_pc_thunk.ax
	addl	$_GLOBAL_OFFSET_TABLE_, %eax
	movl	glob_a@GOTOFF(%eax), %eax
	ret

bfd/

	PR ld/18289
	* elf32-i386.c (elf_i386_link_hash_entry): Add gotoff_ref.
	(elf_i386_link_hash_newfunc): Initialize gotoff_ref to 0.
	(elf_i386_create_dynamic_sections): Always allow copy relocs for
	building executables.
	(elf_i386_copy_indirect_symbol): Also copy gotoff_ref.
	(elf_i386_check_relocs): Set gotoff_ref for R_386_GOTOFF.
	(elf_i386_adjust_dynamic_symbol): Also allocate copy relocs for
	PIE and R_386_GOTOFF.
	(elf_i386_relocate_section): Allow R_386_GOTOFF in executable.

ld/testsuite/

	PR ld/18289
	* ld-i386/copyreloc-lib.c: New file.
	* ld-i386/copyreloc-main.S: Likewise.
	* ld-i386/copyreloc-main.out: Likewise.
	* ld-i386/copyreloc-main1.rd: Likewise.
	* ld-i386/copyreloc-main2.rd: Likewise.
	* ld-i386/dummy.c: Likewise.
	* ld-i386/pr17689.out: Likewise.
	* ld-i386/pr17689.rd: Likewise.
	* ld-i386/pr17689a.c: Likewise.
	* ld-i386/pr17689b.S: Likewise.
	* ld-i386/pr17827.rd: Likewise.
	* ld-i386/pr17827ver.rd: Likewise.
	* ld-i386/i386.exp: Run copyreloc tests.
2015-04-22 05:30:01 -07:00
..
config ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-aarch64 [AArch64] Workaround for Cortex A53 erratum 843419 2015-04-01 13:16:38 +01:00
ld-alpha Properly place the NULL STT_FILE symbol revistited 2015-02-18 00:31:52 +10:30
ld-arm Modify get_reloc_section for targets that map .got.plt to .got 2015-04-07 23:22:11 +09:30
ld-auto-import ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-avr AVR/ld: Use .avr.prop data during linker relaxation. 2015-02-25 23:19:11 +00:00
ld-bootstrap Remove --with-zlib from ld 2015-03-31 03:59:04 -07:00
ld-cdtest ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-checks ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-cris Strip undefined symbols from .symtab 2015-02-19 13:36:34 +10:30
ld-crx ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-cygwin ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-d10v ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-discard ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-elf Add --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] 2015-04-14 22:01:38 -07:00
ld-elfcomm ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-elfvers ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-elfvsb ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-elfweak ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-fastcall ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-frv ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-gc xfail pr18223 test for tic6x 2015-04-15 12:01:33 +09:30
ld-h8300 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-i386 i386: Allow copy relocs for building PIE 2015-04-22 05:30:01 -07:00
ld-ia64 Strip undefined symbols from .symtab 2015-02-19 13:36:34 +10:30
ld-ifunc ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-libs ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-linkonce ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-m68hc11 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-m68k ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-mep ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-metag ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-mips-elf Strip undefined symbols from .symtab 2015-02-19 13:36:34 +10:30
ld-misc ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-mmix Don't hardcode offset of .shstrtab section 2015-04-20 09:55:47 -07:00
ld-mn10300 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-nds32 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-nios2 Nios II CALL26 linker relaxation 2014-01-30 17:47:07 -08:00
ld-pe ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-pie ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-plugin Add a testcase for PR ld/17973 2015-02-14 06:26:20 -08:00
ld-powerpc Fix ppc32 synthetic symbols when __tls_get_addr_opt stub is generated 2015-03-11 18:04:25 +10:30
ld-s390 Properly place the NULL STT_FILE symbol revistited 2015-02-18 00:31:52 +10:30
ld-scripts Allow symbols in MEMORY region specification 2015-01-28 15:06:48 +10:30
ld-selective ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-sh Don't hardcode offset of .shstrtab section 2015-04-20 09:55:47 -07:00
ld-shared ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-size ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-sparc Pad only text sections at end by default 2015-02-28 22:26:56 +10:30
ld-spu ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-srec ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-tic6x Don't hardcode offset of .shstrtab section 2015-04-20 09:55:47 -07:00
ld-tilegx Pad only text sections at end by default 2015-02-28 22:26:56 +10:30
ld-tilepro Pad only text sections at end by default 2015-02-28 22:26:56 +10:30
ld-undefined ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-unique ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-v850 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-vax-elf ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-versados ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-visium ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-vxworks ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-x86-64 Don't hardcode offset of .shstrtab section 2015-04-20 09:55:47 -07:00
ld-xc16x ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-xstormy16 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ld-xtensa ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
lib Remove is_zlib_supported 2015-04-06 12:19:13 -07:00
ChangeLog i386: Allow copy relocs for building PIE 2015-04-22 05:30:01 -07:00
ChangeLog-2004 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-2005 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-2006 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-2007 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-2008 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-2009 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-2010 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-2011 Add copyright notices 2012-12-10 12:48:03 +00:00
ChangeLog-2012 Rotate binutils ChangeLog for 2013 2013-01-02 17:06:32 +00:00
ChangeLog-2013 New Year - binutils ChangeLog rotation 2014-01-08 05:32:12 -08:00
ChangeLog-2014 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
ChangeLog-9303 Add copyright notices 2012-12-10 12:48:03 +00:00