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Replaced test-skeleton.c with support/test-driver.c and
adjusted the tests accordinly.
Checked on x86_64.
* elf/next.c: Import support/test-driver.c instead of
test-skeleton.c and delete TEST_FUNCTION macro definition.
* elf/nodelete.c: Likewise.
* elf/order2.c: Likewise.
* elf/tst-_dl_addr_inside_object.c: Likewise.
* elf/tst-addr1.c: Likewise.
* elf/tst-align.c: Likewise.
* elf/tst-align2.c: Likewise.
* elf/tst-audit11.c: Likewise.
* elf/tst-audit12.c: Likewise.
* elf/tst-audit2.c: Likewise.
* elf/tst-audit9.c: Likewise.
* elf/tst-auxv.c: Likewise and define
TEST_FUNCTION_ARGV macro.
* elf/tst-deep1.c: Likewise.
* elf/tst-dl-iter-static.c: Likewise.
* elf/tst-dlmodcount.c: Likewise.
* elf/tst-dlmopen1.c: Likewise.
* elf/tst-dlmopen2.c: Likewise.
* elf/tst-dlmopen3.c: Likewise.
* elf/tst-dlopen-aout.c: Likewise.
* elf/tst-dlopenrpath.c: Likewise.
* elf/tst-dlsym-error.c: Likewise.
* elf/tst-execstack-needed.c: Likewise.
* elf/tst-execstack-prog.c: Likewise.
* elf/tst-execstack.c: Likewise.
* elf/tst-global1.c: Likewise.
* elf/tst-gnu2-tls1.c: Likewise.
* elf/tst-latepthread.c: Likewise.
* elf/tst-leaks1.c: Likewise.
* elf/tst-linkall-static.c: Likewise.
(do_test): New function.
* elf/tst-nodelete-opened.c: Likewise.
* elf/tst-nodelete.cc: Likewise.
* elf/tst-nodelete2.c: Likewise.
* elf/tst-noload.c: Likewise.
* elf/tst-null-argv.c: Likewise and define
TEST_FUNCTION_ARGV marcro.
* elf/tst-order-main.c: Likewise.
* elf/tst-pathopt.c: Likewise.
* elf/tst-pie2.c: Likewise.
* elf/tst-piemod1.c: Likewise.
* elf/tst-prelink.c: Likewise.
* elf/tst-protected1a.c: Likewise.
* elf/tst-protected1b.c: Likewise.
* elf/tst-ptrguard1.c: Likewise, import getopt.h,
and define _GNU_SOURCE macro.
(cmdline_process_function): New function.
* elf/tst-relsort1.c: Likewise.
* elf/tst-stackguard1.c: Likewise, import getopt.h,
and define _GNU_SOURCE macro.
(cmdline_process_function): New function.
* elf/tst-thrlock.c: Likewise.
* elf/tst-tls-dlinfo.c: Likewise.
* elf/tst-tls-manydynamic.c: Likewise and import
support/xthread.h.
* elf/tst-tls1.c: Likewise.
* elf/tst-tls10.c: Likewise.
* elf/tst-tls11.c: Likewise.
* elf/tst-tls12.c: Likewise.
* elf/tst-tls13.c: Likewise.
* elf/tst-tls14.c: Likewise.
* elf/tst-tls15.c: Likewise.
* elf/tst-tls16.c: Likewise.
* elf/tst-tls17.c: Likewise.
* elf/tst-tls18.c: Likewise.
* elf/tst-tls19.c: Likewise.
* elf/tst-tls2.c: Likewise.
* elf/tst-tls3.c: Likewise.
* elf/tst-tls4.c: Likewise.
* elf/tst-tls5.c: Likewise.
* elf/tst-tls6.c: Likewise.
* elf/tst-tls7.c: Likewise.
* elf/tst-tls8.c: Likewise.
* elf/tst-tls9.c: Likewise.
* elf/tst-tlsalign-extern.c: Likewise.
* elf/tst-tlsalign.c: Likewise.
* elf/tst-unique1.c: Likewise.
* elf/tst-unique2.c: Likewise.
* elf/vismain.c: Likewise.
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PLT relocations aren't required when -z now used. Linker on master with:
commit 25070364b0ce33eed46aa5d78ebebbec6accec7e
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sat May 16 07:00:21 2015 -0700
Don't generate PLT relocations for now binding
There is no need for PLT relocations with -z now. We can use GOT
relocations, which take less space, instead and replace 16-byte .plt
entres with 8-byte .plt.got entries.
bfd/
* elf32-i386.c (elf_i386_check_relocs): Create .plt.got section
for now binding.
(elf_i386_allocate_dynrelocs): Use .plt.got section for now
binding.
* elf64-x86-64.c (elf_x86_64_check_relocs): Create .plt.got
section for now binding.
(elf_x86_64_allocate_dynrelocs): Use .plt.got section for now
binding.
won't generate PLT relocations with -z now. elf/tst-audit2.c expect
certain order of execution in ld.so. With PLT relocations, the GOTPLT
entry of calloc is update to calloc defined in tst-audit2:
(gdb) bt
skip_ifunc=<optimized out>, reloc_addr_arg=<optimized out>,
version=<optimized out>, sym=<optimized out>, map=<optimized out>)
at ../sysdeps/i386/dl-machine.h:329
out>,
nrelative=<optimized out>, relsize=<optimized out>,
reladdr=<optimized out>, map=<optimized out>) at do-rel.h:137
reloc_mode=reloc_mode@entry=0,
consider_profiling=1, consider_profiling@entry=0) at dl-reloc.c:258
user_entry=0xffffcf1c, auxv=0xffffd0a8) at rtld.c:2133
start_argptr=start_argptr@entry=0xffffcfb0,
dl_main=dl_main@entry=0xf7fda6f0 <dl_main>) at
../elf/dl-sysdep.c:249
from /export/build/gnu/glibc-32bit/build-i686-linux/elf/ld.so
(gdb)
and then calloc is called:
(gdb) c
Continuing.
Breakpoint 4, calloc (n=n@entry=20, m=4) at tst-audit2.c:18
18 {
(gdb) bt
reloc_mode=reloc_mode@entry=0, consider_profiling=1,
consider_profiling@entry=0) at dl-reloc.c:272
user_entry=0xffffcf1c, auxv=0xffffd0a8) at rtld.c:2133
start_argptr=start_argptr@entry=0xffffcfb0,
dl_main=dl_main@entry=0xf7fda6f0 <dl_main>) at
../elf/dl-sysdep.c:249
from /export/build/gnu/glibc-32bit/build-i686-linux/elf/ld.so
(gdb)
With GOT relocation, calloc in ld.so is called first:
(gdb) bt
consider_profiling=1) at dl-reloc.c:272
user_entry=0xffffcf0c, auxv=0xffffd098) at rtld.c:2074
start_argptr=start_argptr@entry=0xffffcfa0,
dl_main=dl_main@entry=0xf7fda6c0 <dl_main>) at
../elf/dl-sysdep.c:249
from /export/build/gnu/glibc-32bit-test/build-i686-linux/elf/ld.so
(gdb)
and then the GOT entry of calloc is updated:
(gdb) bt
skip_ifunc=<optimized out>, reloc_addr_arg=<optimized out>,
version=<optimized out>, sym=<optimized out>, map=<optimized out>)
at ../sysdeps/i386/dl-machine.h:329
out>,
nrelative=<optimized out>, relsize=<optimized out>,
reladdr=<optimized out>, map=<optimized out>) at do-rel.h:137
reloc_mode=reloc_mode@entry=0,
consider_profiling=1, consider_profiling@entry=0) at dl-reloc.c:258
user_entry=0xffffcf0c, auxv=0xffffd098) at rtld.c:2133
start_argptr=start_argptr@entry=0xffffcfa0,
dl_main=dl_main@entry=0xf7fda6c0 <dl_main>) at
../elf/dl-sysdep.c:249
from /export/build/gnu/glibc-32bit-test/build-i686-linux/elf/ld.so
(gdb)
After that, since calloc isn't called from ld.so nor any other modules,
magic in tst-audit2 isn't updated. Both orders are correct. This patch
makes sure that calloc in tst-audit2.c is called at least once from ld.so.
[BZ #18422]
* Makefile ($(objpfx)tst-audit2): Depend on $(libdl).
($(objpfx)tst-audit2.out): Also depend on
$(objpfx)tst-auditmod9b.so.
* elf/tst-audit2.c: Include <dlfcn.h>.
(calloc_called): New.
(calloc): Allow to be called more than once.
(do_test): dllopen/dlclose $ORIGIN/tst-auditmod9b.so.
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