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[PATCH 0/13] Define _edata, __bss_start, and _end only for executables
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: binutils at sourceware dot org
- Date: Fri, 1 Jun 2018 11:43:44 -0700
- Subject: [PATCH 0/13] Define _edata, __bss_start, and _end only for executables
_edata, __bss_start, and _end are defined for executables. FreeBSD's
libc.so uses executable's _end to initialize curbrk. But there is no
good reason to access values of _edata, __bss_start, and _end defined
in shared libraries. We should define _edata, __bss_start, and _end
only for executables.
Since _edata, __bss_start, and _end are no longer defined in shared
libraries, I updated linker tests and there are no regressions on
aarch64-linux
alpha-dec-vms
alpha-linux
alpha-linuxecoff
alpha-netbsd
alpha-unknown-freebsd4.7
arc-elf
arc-linux-uclibc
arm-linuxeabi
arm-netbsdelf
arm-nto
arm-pe
arm-symbianelf
arm-vxworks
arm-wince-pe
avr-elf
bfin-elf
cr16-elf
cris-elf
crisv32-linux
crx-elf
d10v-elf
d30v-elf
dlx-elf
fr30-elf
frv-elf
frv-linux
h8300-elf
hppa64-hp-hpux11.23
hppa64-linux
hppa-hp-hpux10
hppa-linux
i386-lynxos
i386-nacl
i586-linux
i686-pc-beos
i686-pc-elf
i686-pe
ia64-elf
ia64-freebsd5
ia64-hpux
ia64-linux
ia64-netbsd
ia64-vms
ip2k-elf
iq2000-elf
lm32-elf
m32c-elf
m32r-elf
m68hc11-elf
m68hc12-elf
m68k-elf
m68k-linux
mcore-elf
mcore-pe
mep-elf
microblaze-elf
mips64-linux
mipsel-linux-gnu
mipsisa32el-linux
mips-linux
mmix
mn10200-elf
mn10300-elf
moxie-elf
ms1-elf
msp430-elf
pj-elf
powerpc64le-linux
powerpc64-linux
powerpc-eabisim
powerpcle-linux
powerpc-linux
powerpc-nto
powerpc-wrs-vxworks
rs6000-aix4.3.3
rs6000-aix5.1
rx-elf
s390-linux
s390x-linux
sh-linux
shl-unknown-netbsdelf
sh-nto
sh-pe
sh-rtems
sparc64-linux
sparc-linux
spu-elf
tic30-unknown-coff
tic4x-coff
tic54x-coff
tic6x-elf
tx39-elf
v850-elf
vax-netbsdelf
x86_64-linux
x86_64-mingw32
x86_64-nacl
xstormy16-elf
xtensa-elf
z8k-coff
H.J. Lu (13):
ld: Define _edata, __bss_start, and _end only for executables
ld: Update tests for _edata, __bss_start, and _end changes
ld/aarch64: Update tests for _edata, __bss_start, and _end changes
ld/mips: Update tests for _edata, __bss_start, and _end changes
ld/alpha: Update tests for _edata, __bss_start, and _end changes
ld/frv: Update tests for _edata, __bss_start, and _end changes
ld/ia64: Update tests for _edata, __bss_start, and _end changes
ld/m68k: Update tests for _edata, __bss_start, and _end changes
ld/powerpc: Update tests for _edata, __bss_start, and _end changes
ld/s390: Update tests for _edata, __bss_start, and _end changes
ld/sh: Update tests for _edata, __bss_start, and _end changes
ld/sparc: Update tests for _edata, __bss_start, and _end changes
ld/cris: Update tests for _edata, __bss_start, and _end changes
ld/scripttempl/elf.sc | 14 ++--
ld/testsuite/ld-aarch64/ifunc-1-local.d | 2 +-
ld/testsuite/ld-aarch64/ifunc-1.d | 2 +-
ld/testsuite/ld-aarch64/ifunc-2-local.d | 4 +-
ld/testsuite/ld-aarch64/ifunc-2.d | 4 +-
ld/testsuite/ld-aarch64/ifunc-21.d | 6 +-
ld/testsuite/ld-aarch64/ifunc-3a.d | 2 +-
ld/testsuite/ld-alpha/tlsbin.rd | 3 -
ld/testsuite/ld-alpha/tlsbin.sd | 2 +-
ld/testsuite/ld-alpha/tlsbinr.rd | 5 +-
ld/testsuite/ld-alpha/tlspic.rd | 6 --
ld/testsuite/ld-alpha/tlspic.sd | 2 +-
ld/testsuite/ld-cris/dso-pltdis1.d | 62 ++++++++--------
ld/testsuite/ld-cris/dso-pltdis2.d | 66 ++++++++---------
ld/testsuite/ld-cris/dso12-pltdis.d | 70 +++++++++---------
ld/testsuite/ld-cris/gotplt1.d | 38 +++++-----
ld/testsuite/ld-cris/gotplt2.d | 24 +++----
ld/testsuite/ld-cris/gotplt3.d | 26 +++----
ld/testsuite/ld-cris/hiddef1.d | 4 +-
ld/testsuite/ld-cris/libdso-1.d | 2 +-
ld/testsuite/ld-cris/libdso-10.d | 24 +++----
ld/testsuite/ld-cris/libdso-11.d | 18 ++---
ld/testsuite/ld-cris/libdso-12.d | 52 +++++++-------
ld/testsuite/ld-cris/libdso-12b.d | 52 +++++++-------
ld/testsuite/ld-cris/libdso-12c.d | 36 +++++-----
ld/testsuite/ld-cris/libdso-13.d | 4 +-
ld/testsuite/ld-cris/libdso-13b.d | 2 +-
ld/testsuite/ld-cris/libdso-14.d | 8 +--
ld/testsuite/ld-cris/libdso-15.d | 14 ++--
ld/testsuite/ld-cris/libdso-15b.d | 20 +++---
ld/testsuite/ld-cris/libdso-1c.d | 20 +++---
ld/testsuite/ld-cris/libdso-1d.d | 26 +++----
ld/testsuite/ld-cris/libdso-2.d | 13 ++--
ld/testsuite/ld-cris/pic-gc-72.d | 8 +--
ld/testsuite/ld-cris/pic-gc-73.d | 6 +-
ld/testsuite/ld-cris/pr16044.d | 11 ++-
ld/testsuite/ld-cris/pv32-1.d | 35 +++++----
ld/testsuite/ld-cris/tls-dso-dtpoffd2.d | 8 +--
ld/testsuite/ld-cris/tls-dso-dtpoffd4.d | 8 +--
ld/testsuite/ld-cris/tls-dso-tpoffgotcomm1.d | 18 ++---
ld/testsuite/ld-cris/tls-gc-71.d | 13 ++--
ld/testsuite/ld-cris/tls-gd-1.d | 24 +++----
ld/testsuite/ld-cris/tls-gd-1h.d | 24 +++----
ld/testsuite/ld-cris/tls-gd-2.d | 24 +++----
ld/testsuite/ld-cris/tls-gd-2h.d | 24 +++----
ld/testsuite/ld-cris/tls-ie-10.d | 22 +++---
ld/testsuite/ld-cris/tls-ie-11.d | 26 +++----
ld/testsuite/ld-cris/tls-ie-78.d | 6 +-
ld/testsuite/ld-cris/tls-ie-8.d | 22 +++---
ld/testsuite/ld-cris/tls-ie-9.d | 26 +++----
ld/testsuite/ld-cris/tls-js1.d | 14 ++--
ld/testsuite/ld-cris/tls-ld-4.d | 24 +++----
ld/testsuite/ld-cris/tls-ld-5.d | 24 +++----
ld/testsuite/ld-cris/tls-ld-6.d | 24 +++----
ld/testsuite/ld-cris/tls-ld-7.d | 24 +++----
ld/testsuite/ld-cris/tls-ldgd-14.d | 30 ++++----
ld/testsuite/ld-cris/tls-ldgd-15.d | 32 ++++-----
ld/testsuite/ld-cris/tls-ldgdex-14.d | 14 ++--
ld/testsuite/ld-cris/tls-ldgdex-15.d | 14 ++--
ld/testsuite/ld-cris/tls-ldgdx-14.d | 14 ++--
ld/testsuite/ld-cris/tls-ldgdx-15.d | 16 ++---
ld/testsuite/ld-cris/tls-legdx-16.d | 12 ++--
ld/testsuite/ld-cris/tls-legdx-17.d | 12 ++--
ld/testsuite/ld-cris/tls-local-54.d | 8 +--
ld/testsuite/ld-cris/tls-local-60.d | 12 ++--
ld/testsuite/ld-cris/tls-local-61.d | 12 ++--
ld/testsuite/ld-cris/tls-local-63.d | 12 ++--
ld/testsuite/ld-cris/tls-local-64.d | 16 ++---
ld/testsuite/ld-cris/tls-ok-30.d | 18 ++---
ld/testsuite/ld-cris/tls-ok-32.d | 12 ++--
ld/testsuite/ld-cris/tls-ok-34.d | 16 ++---
ld/testsuite/ld-cris/tls-und-38.d | 6 +-
ld/testsuite/ld-cris/tls-und-42.d | 4 +-
ld/testsuite/ld-cris/tls-und-46.d | 6 +-
ld/testsuite/ld-cris/tls-und-50.d | 4 +-
ld/testsuite/ld-cris/weakhiddso.d | 13 ++--
ld/testsuite/ld-cris/weakref2.d | 2 +-
ld/testsuite/ld-elf/pr23161.map | 4 ++
ld/testsuite/ld-elf/pr23161.rd | 14 ++++
ld/testsuite/ld-elf/pr23161a.c | 9 +++
ld/testsuite/ld-elf/pr23161b.c | 23 ++++++
ld/testsuite/ld-elf/pr23162.rd | 9 +--
ld/testsuite/ld-elf/shared.exp | 40 +++++++++++
ld/testsuite/ld-frv/fdpic-shared-2.d | 8 +--
ld/testsuite/ld-frv/fdpic-shared-5.d | 8 +--
ld/testsuite/ld-frv/tls-dynamic-2.d | 18 ++---
ld/testsuite/ld-i386/ibt-plt-1.d | 20 +++---
ld/testsuite/ld-i386/ibt-plt-2a.d | 20 +++---
ld/testsuite/ld-i386/ibt-plt-2b.d | 20 +++---
ld/testsuite/ld-i386/ibt-plt-2c.d | 20 +++---
ld/testsuite/ld-i386/ibt-plt-2d.d | 20 +++---
ld/testsuite/ld-i386/ibt-plt-3a.d | 20 +++---
ld/testsuite/ld-i386/ibt-plt-3b.d | 20 +++---
ld/testsuite/ld-i386/ibt-plt-3c.d | 20 +++---
ld/testsuite/ld-i386/ibt-plt-3d.d | 20 +++---
ld/testsuite/ld-i386/plt2.dd | 26 +++----
ld/testsuite/ld-i386/pr20830.d | 18 ++---
ld/testsuite/ld-i386/tlsbin-nacl.rd | 3 -
ld/testsuite/ld-i386/tlsbin.rd | 3 -
ld/testsuite/ld-i386/tlsbin2-nacl.rd | 3 -
ld/testsuite/ld-i386/tlsbin2.rd | 3 -
ld/testsuite/ld-i386/tlsbindesc-nacl.rd | 9 +--
ld/testsuite/ld-i386/tlsbindesc.rd | 9 +--
ld/testsuite/ld-i386/tlsdesc-nacl.rd | 6 --
ld/testsuite/ld-i386/tlsdesc.rd | 6 --
ld/testsuite/ld-i386/tlsgdesc-nacl.rd | 6 --
ld/testsuite/ld-i386/tlsgdesc.rd | 6 --
ld/testsuite/ld-i386/tlsnopic-nacl.rd | 14 ++--
ld/testsuite/ld-i386/tlsnopic.dd | 12 ++--
ld/testsuite/ld-i386/tlsnopic.rd | 6 --
ld/testsuite/ld-i386/tlsnopic.sd | 4 +-
ld/testsuite/ld-i386/tlspic-nacl.rd | 6 --
ld/testsuite/ld-i386/tlspic.rd | 6 --
ld/testsuite/ld-i386/tlspic2-nacl.rd | 6 --
ld/testsuite/ld-i386/tlspic2.rd | 6 --
ld/testsuite/ld-ia64/merge1.d | 2 +-
ld/testsuite/ld-ia64/merge2.d | 2 +-
ld/testsuite/ld-ia64/merge3.d | 2 +-
ld/testsuite/ld-ia64/merge4.d | 2 +-
ld/testsuite/ld-ia64/merge5.d | 2 +-
ld/testsuite/ld-ia64/tlsbin.rd | 3 -
ld/testsuite/ld-ia64/tlspic.rd | 6 --
ld/testsuite/ld-ifunc/ifunc-2-i386-now.d | 14 ++--
.../ld-ifunc/ifunc-2-local-i386-now.d | 14 ++--
.../ld-ifunc/ifunc-2-local-x86-64-now.d | 20 +++---
ld/testsuite/ld-ifunc/ifunc-2-local-x86-64.d | 4 +-
ld/testsuite/ld-ifunc/ifunc-2-x86-64-now.d | 20 +++---
ld/testsuite/ld-ifunc/ifunc-2-x86-64.d | 4 +-
ld/testsuite/ld-ifunc/pr17154-i386-now.d | 34 ++++-----
ld/testsuite/ld-ifunc/pr17154-i386.d | 34 ++++-----
ld/testsuite/ld-ifunc/pr17154-x86-64-now.d | 46 ++++++------
ld/testsuite/ld-ifunc/pr17154-x86-64.d | 64 ++++++++---------
ld/testsuite/ld-m68k/tls-def-1.d | 3 -
ld/testsuite/ld-m68k/tls-gd-1.d2 | 3 -
ld/testsuite/ld-mips-elf/rel32-n32.d | 6 +-
ld/testsuite/ld-mips-elf/rel32-o32.d | 6 +-
ld/testsuite/ld-mips-elf/rel64.d | 6 +-
ld/testsuite/ld-powerpc/ambiguousv1.d | 2 +-
ld/testsuite/ld-powerpc/ambiguousv1b.d | 2 +-
ld/testsuite/ld-powerpc/ambiguousv2.d | 3 +-
ld/testsuite/ld-powerpc/ambiguousv2b.d | 2 +-
ld/testsuite/ld-powerpc/tlsexe.d | 4 +-
ld/testsuite/ld-powerpc/tlsexe.r | 3 -
ld/testsuite/ld-powerpc/tlsexe32.d | 8 +--
ld/testsuite/ld-powerpc/tlsexe32.g | 2 +-
ld/testsuite/ld-powerpc/tlsexe32.r | 4 --
ld/testsuite/ld-powerpc/tlsexetoc.d | 4 +-
ld/testsuite/ld-powerpc/tlsexetoc.r | 3 -
ld/testsuite/ld-powerpc/tlsso.d | 4 +-
ld/testsuite/ld-powerpc/tlsso.r | 8 +--
ld/testsuite/ld-powerpc/tlsso32.g | 2 +-
ld/testsuite/ld-powerpc/tlsso32.r | 14 +---
ld/testsuite/ld-powerpc/tlstocso.d | 4 +-
ld/testsuite/ld-powerpc/tlstocso.g | 2 +-
ld/testsuite/ld-powerpc/tlstocso.r | 10 +--
ld/testsuite/ld-s390/gotreloc_31-1.dd | 6 +-
ld/testsuite/ld-s390/tlsbin.dd | 2 +-
ld/testsuite/ld-s390/tlsbin.rd | 3 -
ld/testsuite/ld-s390/tlsbin_64.dd | 2 +-
ld/testsuite/ld-s390/tlsbin_64.rd | 3 -
ld/testsuite/ld-s390/tlspic.rd | 6 --
ld/testsuite/ld-s390/tlspic_64.rd | 6 --
ld/testsuite/ld-sh/tlsbin-2.d | 2 -
ld/testsuite/ld-sh/tlspic-2.d | 2 -
ld/testsuite/ld-sparc/gotop32.rd | 6 --
ld/testsuite/ld-sparc/gotop64.rd | 6 --
ld/testsuite/ld-sparc/tlssunbin32.rd | 3 -
ld/testsuite/ld-sparc/tlssunbin64.rd | 3 -
ld/testsuite/ld-sparc/tlssunnopic32.rd | 6 --
ld/testsuite/ld-sparc/tlssunnopic64.rd | 6 --
ld/testsuite/ld-sparc/tlssunpic32.rd | 6 --
ld/testsuite/ld-sparc/tlssunpic64.rd | 6 --
ld/testsuite/ld-x86-64/bnd-branch-1-now.d | 44 ++++++------
ld/testsuite/ld-x86-64/bnd-ifunc-1-now.d | 18 ++---
ld/testsuite/ld-x86-64/bnd-ifunc-2-now.d | 46 ++++++------
ld/testsuite/ld-x86-64/bnd-ifunc-2.d | 46 ++++++------
ld/testsuite/ld-x86-64/bnd-plt-1-now.d | 44 ++++++------
ld/testsuite/ld-x86-64/bnd-plt-1.d | 44 ++++++------
ld/testsuite/ld-x86-64/ibt-plt-1-x32.d | 24 +++----
ld/testsuite/ld-x86-64/ibt-plt-1.d | 24 +++----
ld/testsuite/ld-x86-64/ibt-plt-2a-x32.d | 24 +++----
ld/testsuite/ld-x86-64/ibt-plt-2a.d | 24 +++----
ld/testsuite/ld-x86-64/ibt-plt-2b-x32.d | 14 ++--
ld/testsuite/ld-x86-64/ibt-plt-2b.d | 14 ++--
ld/testsuite/ld-x86-64/ibt-plt-2c-x32.d | 24 +++----
ld/testsuite/ld-x86-64/ibt-plt-2c.d | 24 +++----
ld/testsuite/ld-x86-64/ibt-plt-2d-x32.d | 14 ++--
ld/testsuite/ld-x86-64/ibt-plt-2d.d | 15 ++--
ld/testsuite/ld-x86-64/ibt-plt-3a-x32.d | 24 +++----
ld/testsuite/ld-x86-64/ibt-plt-3a.d | 24 +++----
ld/testsuite/ld-x86-64/ibt-plt-3b-x32.d | 14 ++--
ld/testsuite/ld-x86-64/ibt-plt-3b.d | 14 ++--
ld/testsuite/ld-x86-64/ibt-plt-3c-x32.d | 24 +++----
ld/testsuite/ld-x86-64/ibt-plt-3c.d | 24 +++----
ld/testsuite/ld-x86-64/ibt-plt-3d-x32.d | 14 ++--
ld/testsuite/ld-x86-64/ibt-plt-3d.d | 14 ++--
ld/testsuite/ld-x86-64/ilp32-4-nacl.d | 16 ++---
ld/testsuite/ld-x86-64/ilp32-4.d | 8 +--
ld/testsuite/ld-x86-64/load1c-nacl.d | 72 +++++++++----------
ld/testsuite/ld-x86-64/load1c.d | 72 +++++++++----------
ld/testsuite/ld-x86-64/load1d-nacl.d | 72 +++++++++----------
ld/testsuite/ld-x86-64/load1d.d | 72 +++++++++----------
ld/testsuite/ld-x86-64/mpx3n.dd | 18 ++---
ld/testsuite/ld-x86-64/mpx4.dd | 26 +++----
ld/testsuite/ld-x86-64/mpx4n.dd | 16 ++---
ld/testsuite/ld-x86-64/plt2.dd | 26 +++----
ld/testsuite/ld-x86-64/pr14207.d | 4 +-
ld/testsuite/ld-x86-64/pr19162.d | 2 +-
ld/testsuite/ld-x86-64/pr20253-1f.d | 18 ++---
ld/testsuite/ld-x86-64/pr20253-1l.d | 18 ++---
ld/testsuite/ld-x86-64/pr20830a-now.d | 26 +++----
ld/testsuite/ld-x86-64/pr20830a.d | 26 +++----
ld/testsuite/ld-x86-64/pr20830b-now.d | 26 +++----
ld/testsuite/ld-x86-64/pr20830b.d | 26 +++----
ld/testsuite/ld-x86-64/pr21038a-now.d | 26 +++----
ld/testsuite/ld-x86-64/pr21038a.d | 26 +++----
ld/testsuite/ld-x86-64/pr21038b-now.d | 26 +++----
ld/testsuite/ld-x86-64/pr21038b.d | 26 +++----
ld/testsuite/ld-x86-64/pr21038c-now.d | 36 +++++-----
ld/testsuite/ld-x86-64/pr21038c.d | 36 +++++-----
ld/testsuite/ld-x86-64/tlsbin-nacl.rd | 21 +++---
ld/testsuite/ld-x86-64/tlsbin.rd | 3 -
ld/testsuite/ld-x86-64/tlsbin2-nacl.rd | 21 +++---
ld/testsuite/ld-x86-64/tlsbin2.rd | 3 -
ld/testsuite/ld-x86-64/tlsbindesc-nacl.rd | 33 ++++-----
ld/testsuite/ld-x86-64/tlsbindesc.rd | 7 +-
ld/testsuite/ld-x86-64/tlsdesc-nacl.rd | 54 +++++++-------
ld/testsuite/ld-x86-64/tlsdesc.rd | 10 +--
ld/testsuite/ld-x86-64/tlsgdesc-nacl.rd | 14 ++--
ld/testsuite/ld-x86-64/tlsgdesc.rd | 14 ++--
ld/testsuite/ld-x86-64/tlspic-nacl.rd | 24 +++----
ld/testsuite/ld-x86-64/tlspic.rd | 6 --
ld/testsuite/ld-x86-64/tlspic2-nacl.rd | 24 +++----
ld/testsuite/ld-x86-64/tlspic2.rd | 6 --
234 files changed, 1807 insertions(+), 2004 deletions(-)
create mode 100644 ld/testsuite/ld-elf/pr23161.map
create mode 100644 ld/testsuite/ld-elf/pr23161.rd
create mode 100644 ld/testsuite/ld-elf/pr23161a.c
create mode 100644 ld/testsuite/ld-elf/pr23161b.c
--
2.17.0
- Follow-Ups:
- [PATCH 06/13] ld/frv: Update tests for _edata, __bss_start, and _end changes
- [PATCH 01/13] ld: Define _edata, __bss_start, and _end only for executables
- [PATCH 08/13] ld/m68k: Update tests for _edata, __bss_start, and _end changes
- [PATCH 07/13] ld/ia64: Update tests for _edata, __bss_start, and _end changes
- [PATCH 10/13] ld/s390: Update tests for _edata, __bss_start, and _end changes
- [PATCH 09/13] ld/powerpc: Update tests for _edata, __bss_start, and _end changes
- [PATCH 11/13] ld/sh: Update tests for _edata, __bss_start, and _end changes
- [PATCH 03/13] ld/aarch64: Update tests for _edata, __bss_start, and _end changes
- [PATCH 12/13] ld/sparc: Update tests for _edata, __bss_start, and _end changes
- [PATCH 04/13] ld/mips: Update tests for _edata, __bss_start, and _end changes
- [PATCH 05/13] ld/alpha: Update tests for _edata, __bss_start, and _end changes
- [PATCH 02/13] ld: Update tests for _edata, __bss_start, and _end changes
- [PATCH 13/13] ld/cris: Update tests for _edata, __bss_start, and _end changes