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binutils-gdb/ld/emulparams
History
H.J. Lu 68b007788a ld/x86: Add -z report-relative-reloc 
Linker generated relative relocations don't have symbol info:

[hjl@gnu-cfl-2 tmpdir]$ readelf -rW dump

Relocation section '.rela.dyn' at offset 0x180 contains 2 entries:
 Offset     Info    Type                Sym. Value  Symbol's Name + Addend
00002f70  00000008 R_X86_64_RELATIVE                 1000
00002f68  00000025 R_X86_64_IRELATIVE                1007
[hjl@gnu-cfl-2 tmpdir]$

Add -z report-relative-reloc to x86 ELF linker to report dynamic relative
relocations:

[hjl@gnu-cfl-2 tmpdir]$ ../ld-new -pie -melf32_x86_64 -z report-relative-reloc -o dump report-reloc-1.o
dump: R_X86_64_IRELATIVE (offset: 0x00002f68, info: 0x00000025, addend: 0x00001007) against 'ifunc' for section '.data.rel.ro.local' in report-reloc-1.o
dump: R_X86_64_RELATIVE (offset: 0x00002f70, info: 0x00000008, addend: 0x00001000) against '_start' for section '.data.rel.ro.local' in report-reloc-1.o
[hjl@gnu-cfl-2 tmpdir]$

It can be used to map relative relocations to corresponding symbols.

bfd/

	* elf-linker-x86.h (elf_linker_x86_params): Add
	report_relative_reloc.
	* elf32-i386.c (elf_i386_relocate_section): Call
	_bfd_x86_elf_link_report_relative_reloc to report relative
	relocations for -z report-relative-reloc.
	(elf_i386_finish_dynamic_symbol): Likewse.
	* elf64-x86-64.c (elf_x86_64_relocate_section): Likewse.
	(elf_x86_64_finish_dynamic_symbol): Likewse.
	* elfxx-x86.c (_bfd_x86_elf_link_report_relative_reloc): New
	function.
	* elfxx-x86.h (_bfd_x86_elf_link_report_relative_reloc): New
	prototype.

ld/

	* NEWS: Mention -z report-relative-reloc.
	* ld.texi: Document -z report-relative-reloc.
	* emulparams/elf32_x86_64.sh: Source x86-report-relative.sh.
	* emulparams/elf_i386.sh: Likewse.
	* emulparams/elf_x86_64.sh: Likewse.
	* emulparams/x86-report-relative.sh: New file.
	* testsuite/ld-i386/report-reloc-1.d: Likewse.
	* testsuite/ld-i386/report-reloc-1.l: Likewse.
	* testsuite/ld-i386/report-reloc-1.s: Likewse.
	* testsuite/ld-x86-64/report-reloc-1-x32.d: Likewse.
	* testsuite/ld-x86-64/report-reloc-1.d: Likewse.
	* testsuite/ld-x86-64/report-reloc-1.l: Likewse.
	* testsuite/ld-x86-64/report-reloc-1.s: Likewse.
	* testsuite/ld-i386/i386.exp: Run report-reloc-1.
	* testsuite/ld-x86-64/x86-64.exp: Run report-reloc-1 and
	report-reloc-1-x32.
2021-01-15 18:07:07 -08:00
..
aarch64cloudabi.sh
aarch64cloudabib.sh
aarch64elf32.sh
aarch64elf32b.sh
aarch64elf.sh
aarch64elfb.sh
aarch64fbsd.sh
aarch64fbsdb.sh
aarch64linux32.sh
aarch64linux32b.sh
aarch64linux.sh
aarch64linuxb.sh
aix5ppc.sh
aix5rs6.sh
aixppc.sh
aixrs6.sh
alpha.sh
alphavms.sh
arc-endianness.sh
arc-nps.sh
arcelf.sh
arclinux_nps.sh
arclinux.sh
arcv2elf.sh
arcv2elfx.sh
arm_wince_pe.sh
armelf_fbsd.sh
armelf_fuchsia.sh
armelf_linux_eabi.sh
armelf_linux_fdpiceabi.sh
armelf_linux.sh
armelf_nacl.sh
armelf_nbsd.sh
armelf_phoenix.sh
armelf_vxworks.sh
armelf.sh ELF: Support .noinit and .persistent sections 2020-11-27 10:45:35 +00:00
armelfb_fbsd.sh
armelfb_fuchsia.sh
armelfb_linux_eabi.sh
armelfb_linux_fdpiceabi.sh
armelfb_linux.sh
armelfb_nacl.sh
armelfb_nbsd.sh
armelfb.sh
armnto.sh
armpe.sh
armsymbian.sh
avr1.sh
avr2.sh
avr3.sh
avr4.sh
avr5.sh
avr6.sh
avr25.sh
avr31.sh
avr35.sh
avr51.sh
avrtiny.sh
avrxmega1.sh
avrxmega2.sh
avrxmega3.sh
avrxmega4.sh
avrxmega5.sh
avrxmega6.sh
avrxmega7.sh
call_nop.sh
cet.sh x86-64: Add Intel LAM property support 2020-12-23 13:00:55 -08:00
crisaout.sh
criself.sh
crislinux.sh
cskyelf_linux.sh CSKY: Change default linker script for elf toolchain. 2020-10-26 17:13:21 +08:00
cskyelf.sh CSKY: Change default linker script for elf toolchain. 2020-10-26 17:13:21 +08:00
d10velf.sh
d30v_e.sh
d30v_o.sh
d30velf.sh
dynamic_undefined_weak.sh
elf32_dlx.sh
elf32_sparc_sol2.sh
elf32_sparc_vxworks.sh
elf32_sparc.sh
elf32_spu.sh
elf32_tic6x_be.sh
elf32_tic6x_elf_be.sh
elf32_tic6x_elf_le.sh
elf32_tic6x_le.sh
elf32_tic6x_linux_be.sh
elf32_tic6x_linux_le.sh
elf32_x86_64.sh ld/x86: Add -z report-relative-reloc 2021-01-15 18:07:07 -08:00
elf32am33lin.sh
elf32b4300.sh
elf32bfin.sh
elf32bfinfd.sh
elf32bmip.sh
elf32bmipn32-defs.sh
elf32bmipn32.sh
elf32briscv_ilp32.sh RISC-V: Implement support for big endian targets. 2021-01-06 17:57:52 +08:00
elf32briscv_ilp32f.sh RISC-V: Implement support for big endian targets. 2021-01-06 17:57:52 +08:00
elf32briscv.sh RISC-V: Implement support for big endian targets. 2021-01-06 17:57:52 +08:00
elf32bsmip.sh
elf32btsmip_fbsd.sh
elf32btsmip.sh
elf32btsmipn32_fbsd.sh
elf32btsmipn32.sh
elf32cr16.sh
elf32crx.sh
elf32ebmip.sh
elf32ebmipvxworks.sh
elf32elmip.sh
elf32elmipvxworks.sh
elf32epiphany_4x4.sh
elf32epiphany.sh
elf32fr30.sh
elf32frv.sh
elf32frvfd.sh
elf32ft32.sh
elf32ip2k.sh
elf32iq10.sh
elf32iq2000.sh
elf32l4300.sh
elf32lm32.sh
elf32lm32fd.sh
elf32lmip.sh
elf32lppc.sh
elf32lppclinux.sh
elf32lppcnto.sh
elf32lppcsim.sh
elf32lr5900.sh
elf32lr5900n32.sh
elf32lriscv_ilp32.sh
elf32lriscv_ilp32f.sh
elf32lriscv-defs.sh RISC-V: Support GNU indirect functions. 2020-10-16 10:11:18 +08:00
elf32lriscv.sh
elf32lsmip.sh
elf32ltsmip_fbsd.sh
elf32ltsmip.sh
elf32ltsmipn32_fbsd.sh
elf32ltsmipn32.sh
elf32m32c.sh
elf32mb_linux.sh
elf32mbel_linux.sh
elf32mcore.sh
elf32mep.sh
elf32metag.sh
elf32microblaze.sh
elf32microblazeel.sh
elf32mipswindiss.sh
elf32moxie.sh
elf32mt.sh
elf32or1k_linux.sh
elf32or1k.sh
elf32ppc_fbsd.sh
elf32ppc.sh
elf32ppccommon.sh
elf32ppclinux.sh
elf32ppcnto.sh
elf32ppcsim.sh
elf32ppcvxworks.sh
elf32ppcwindiss.sh
elf32rl78.sh
elf32rx_linux.sh ld: Add rx-linux emulation. gas: Change ELF flags initial value in rx-linux 2020-04-30 13:35:37 +01:00
elf32rx.sh
elf32tilegx_be.sh
elf32tilegx.sh
elf32tilepro.sh
elf32vax.sh
elf32visium.sh
elf32xc16x.sh
elf32xc16xl.sh
elf32xc16xs.sh
elf32xstormy16.sh
elf32xtensa.sh
elf32z80.sh
elf64_aix.sh
elf64_ia64_fbsd.sh
elf64_ia64_vms.sh
elf64_ia64.sh
elf64_s390.sh
elf64_sparc_fbsd.sh
elf64_sparc_sol2.sh
elf64_sparc.sh
elf64alpha_fbsd.sh
elf64alpha_nbsd.sh
elf64alpha.sh
elf64bmip-defs.sh
elf64bmip.sh
elf64bpf.sh
elf64briscv_lp64.sh RISC-V: Implement support for big endian targets. 2021-01-06 17:57:52 +08:00
elf64briscv_lp64f.sh RISC-V: Implement support for big endian targets. 2021-01-06 17:57:52 +08:00
elf64briscv.sh RISC-V: Implement support for big endian targets. 2021-01-06 17:57:52 +08:00
elf64btsmip_fbsd.sh
elf64btsmip.sh
elf64hppa.sh
elf64lppc_fbsd.sh PR26667, Add powerpc64le-*-freebsd* support 2020-10-06 17:09:27 +10:30
elf64lppc.sh
elf64lriscv_lp64.sh
elf64lriscv_lp64f.sh
elf64lriscv-defs.sh
elf64lriscv.sh
elf64ltsmip_fbsd.sh
elf64ltsmip.sh
elf64mmix.sh ld: optionally emit _etext last, before .data 2020-07-19 06:08:07 +02:00
elf64ppc_fbsd.sh
elf64ppc.sh
elf64rdos.sh
elf64tilegx_be.sh
elf64tilegx.sh
elf_fbsd.sh
elf_i386_be.sh
elf_i386_fbsd.sh
elf_i386_ldso.sh
elf_i386_sol2.sh
elf_i386_vxworks.sh
elf_i386.sh ld/x86: Add -z report-relative-reloc 2021-01-15 18:07:07 -08:00
elf_iamcu.sh
elf_k1om_fbsd.sh
elf_k1om.sh
elf_l1om_fbsd.sh
elf_l1om.sh
elf_nacl.sh
elf_s390.sh
elf_x86_64_cloudabi.sh
elf_x86_64_fbsd.sh
elf_x86_64_sol2.sh
elf_x86_64.sh ld/x86: Add -z report-relative-reloc 2021-01-15 18:07:07 -08:00
extern_protected_data.sh
h8300elf_linux.sh
h8300elf.sh
h8300helf_linux.sh
h8300helf.sh
h8300hnelf.sh
h8300self_linux.sh
h8300self.sh
h8300snelf.sh
h8300sxelf_linux.sh
h8300sxelf.sh
h8300sxnelf.sh
hppa64linux.sh
hppaelf.sh
hppalinux.sh
hppanbsd.sh
hppaobsd.sh
i386aout.sh
i386beos.sh
i386bsd.sh
i386go32.sh
i386lynx.sh
i386moss.sh
i386msdos.sh
i386nto.sh
i386pe_posix.sh
i386pe.sh
i386pep.sh
m9s12zelf.sh
m32relf_linux.sh
m32relf.sh
m32rlelf_linux.sh
m32rlelf.sh
m68hc11elf.sh
m68hc11elfb.sh
m68hc12elf.sh
m68hc12elfb.sh
m68kelf.sh
m68kelfnbsd.sh
mcorepe.sh
mmo.sh
mn10200.sh
mn10300.sh
moxiebox.sh
msp430elf.sh
msp430X.sh
nds32belf16m.sh
nds32belf_linux.sh
nds32belf.sh
nds32elf16m.sh
nds32elf_linux.sh
nds32elf.sh
nios2elf.sh
nios2linux.sh
ns32knbsd.sh
pc532macha.sh
pdp11.sh
pjelf.sh
pjlelf.sh
plt_unwind.sh
ppcmacos.sh
pruelf.sh
README Update year range in copyright notice of binutils files 2021-01-01 10:31:05 +10:30
reloc_overflow.sh
score3_elf.sh
score7_elf.sh
sh.sh
shelf_fd.sh
shelf_linux.sh
shelf_nbsd.sh
shelf_nto.sh
shelf_uclinux.sh
shelf_vxworks.sh
shelf.sh
shl.sh
shlelf_fd.sh
shlelf_linux.sh
shlelf_nbsd.sh
shlelf_nto.sh
shlelf_vxworks.sh
shlelf.sh
shpe.sh
solaris2.sh
static.sh
tic3xcoff_onchip.sh
tic3xcoff.sh
tic4xcoff.sh
tic30coff.sh
tic54xcoff.sh
v850_rh850.sh
v850.sh
vanilla.sh
vaxnbsd.sh
vxworks.sh
x86-64-lam.sh x86-64: Add Intel LAM property support 2020-12-23 13:00:55 -08:00
x86-64-level.sh Fix compile time warning 2020-11-03 08:56:27 +00:00
x86-report-relative.sh ld/x86: Add -z report-relative-reloc 2021-01-15 18:07:07 -08:00
xgateelf.sh
z80.sh
z8001.sh
z8002.sh

README

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