diff options
| -rw-r--r-- | ChangeLog | 21 | ||||
| -rw-r--r-- | config.make.in | 1 | ||||
| -rwxr-xr-x | configure | 34 | ||||
| -rw-r--r-- | configure.ac | 23 | ||||
| -rw-r--r-- | elf/Makefile | 17 | ||||
| -rw-r--r-- | elf/tst-prelink.c (renamed from sysdeps/x86/tst-prelink.c) | 0 | ||||
| -rw-r--r-- | elf/tst-prelink.exp (renamed from sysdeps/x86/tst-prelink.exp) | 0 | ||||
| -rw-r--r-- | sysdeps/x86/Makefile | 15 |
8 files changed, 96 insertions, 15 deletions
@@ -1,3 +1,24 @@ +2015-11-14 H.J. Lu <hongjiu.lu@intel.com> + + * config.make.in (have-glob-dat-reloc): New. + * configure.ac (libc_cv_has_glob_dat): New. Set to yes if + target supports GLOB_DAT relocaton. AC_SUBST. + * configure: Regenerated. + * elf/Makefile (tests): Add tst-prelink. + (tests-special): Add $(objpfx)tst-prelink-cmp.out. + (tst-prelink-ENV): New. + ($(objpfx)tst-prelink-conflict.out): Likewise. + ($(objpfx)tst-prelink-cmp.out): Likewise. + * sysdeps/x86/tst-prelink.c: Moved to ... + * elf/tst-prelink.c: Here. + * sysdeps/x86/tst-prelink.exp: Moved to ... + * elf/tst-prelink.exp: Here. + * sysdeps/x86/Makefile (tests): Don't add tst-prelink. + (tst-prelink-ENV): Removed. + ($(objpfx)tst-prelink-conflict.out): Likewise. + ($(objpfx)tst-prelink-cmp.out): Likewise. + (tests-special): Don't add $(objpfx)tst-prelink-cmp.out. + 2015-11-13 Joseph Myers <joseph@codesourcery.com> [BZ #14551] diff --git a/config.make.in b/config.make.in index 75bb9cc..ba9c60d 100644 --- a/config.make.in +++ b/config.make.in @@ -50,6 +50,7 @@ enable-werror = @enable_werror@ have-z-combreloc = @libc_cv_z_combreloc@ have-z-execstack = @libc_cv_z_execstack@ have-protected-data = @libc_cv_protected_data@ +have-glob-dat-reloc = @libc_cv_has_glob_dat@ with-fp = @with_fp@ enable-timezone-tools = @enable_timezone_tools@ unwind-find-fde = @libc_cv_gcc_unwind_find_fde@ @@ -622,6 +622,7 @@ libc_cv_cc_nofma stack_protector fno_unit_at_a_time libc_cv_output_format +libc_cv_has_glob_dat libc_cv_hashstyle libc_cv_fpie libc_cv_z_execstack @@ -5693,6 +5694,39 @@ $as_echo "$libc_cv_use_default_link" >&6; } use_default_link=$libc_cv_use_default_link fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GLOB_DAT reloc" >&5 +$as_echo_n "checking for GLOB_DAT reloc... " >&6; } +if ${libc_cv_has_glob_dat+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat > conftest.c <<EOF +extern int mumble; +int foo (void) { return mumble; } +EOF +if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS + -fPIC -shared -o conftest.so conftest.c + -nostdlib -nostartfiles + 1>&5' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 + (eval $ac_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; } +then + if $READELF -rW conftest.so | grep '_GLOB_DAT' > /dev/null; then + libc_cv_has_glob_dat=yes + else + libc_cv_has_glob_dat=no + fi +else + libc_cv_has_glob_dat=no +fi +rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_has_glob_dat" >&5 +$as_echo "$libc_cv_has_glob_dat" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker output format" >&5 $as_echo_n "checking linker output format... " >&6; } if ${libc_cv_output_format+:} false; then : diff --git a/configure.ac b/configure.ac index 3fdf992..cd37433 100644 --- a/configure.ac +++ b/configure.ac @@ -1340,6 +1340,29 @@ $ac_try" use_default_link=$libc_cv_use_default_link fi +AC_CACHE_CHECK(for GLOB_DAT reloc, + libc_cv_has_glob_dat, [dnl +cat > conftest.c <<EOF +extern int mumble; +int foo (void) { return mumble; } +EOF +if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS + -fPIC -shared -o conftest.so conftest.c + -nostdlib -nostartfiles + 1>&AS_MESSAGE_LOG_FD]) +then +dnl look for GLOB_DAT relocation. + if $READELF -rW conftest.so | grep '_GLOB_DAT' > /dev/null; then + libc_cv_has_glob_dat=yes + else + libc_cv_has_glob_dat=no + fi +else + libc_cv_has_glob_dat=no +fi +rm -f conftest*]) +AC_SUBST(libc_cv_has_glob_dat) + AC_CACHE_CHECK(linker output format, libc_cv_output_format, [dnl if libc_cv_output_format=` ${CC-cc} -nostartfiles -nostdlib -Wl,--print-output-format 2>&AS_MESSAGE_LOG_FD` diff --git a/elf/Makefile b/elf/Makefile index 76985cc..9d2dc5c 100644 --- a/elf/Makefile +++ b/elf/Makefile @@ -302,6 +302,13 @@ check-abi: $(objpfx)check-abi-ld.out tests-special += $(objpfx)check-abi-ld.out update-abi: update-abi-ld +ifeq ($(have-glob-dat-reloc),yes) +tests += tst-prelink +ifeq ($(run-built-tests),yes) +tests-special += $(objpfx)tst-prelink-cmp.out +endif +endif + include ../Rules ifeq (yes,$(build-shared)) @@ -1234,3 +1241,13 @@ $(objpfx)tst-audit12: $(libdl) tst-audit12-ENV = LD_AUDIT=$(objpfx)tst-auditmod12.so $(objpfx)tst-audit12mod1.so: $(objpfx)tst-audit12mod2.so LDFLAGS-tst-audit12mod2.so = -Wl,--version-script=tst-audit12mod2.map + +tst-prelink-ENV = LD_TRACE_PRELINKING=1 + +$(objpfx)tst-prelink-conflict.out: $(objpfx)tst-prelink.out + grep stdout $< | grep conflict | $(AWK) '{ print $$10, $$11 }' > $@ + +$(objpfx)tst-prelink-cmp.out: tst-prelink.exp \ + $(objpfx)tst-prelink-conflict.out + cmp $^ > $@; \ + $(evaluate-test) diff --git a/sysdeps/x86/tst-prelink.c b/elf/tst-prelink.c index ab61c4e..ab61c4e 100644 --- a/sysdeps/x86/tst-prelink.c +++ b/elf/tst-prelink.c diff --git a/sysdeps/x86/tst-prelink.exp b/elf/tst-prelink.exp index b35b4c9..b35b4c9 100644 --- a/sysdeps/x86/tst-prelink.exp +++ b/elf/tst-prelink.exp diff --git a/sysdeps/x86/Makefile b/sysdeps/x86/Makefile index a2f4f8a..0de4f42 100644 --- a/sysdeps/x86/Makefile +++ b/sysdeps/x86/Makefile @@ -7,19 +7,4 @@ sysdep-dl-routines += dl-get-cpu-features tests += tst-get-cpu-features tests-static += tst-get-cpu-features-static - -tests += tst-prelink -tst-prelink-ENV = LD_TRACE_PRELINKING=1 - -$(objpfx)tst-prelink-conflict.out: $(objpfx)tst-prelink.out - grep stdout $< | grep conflict | $(AWK) '{ print $$10, $$11 }' > $@ - -$(objpfx)tst-prelink-cmp.out: $(..)sysdeps/x86/tst-prelink.exp \ - $(objpfx)tst-prelink-conflict.out - cmp $^ > $@; \ - $(evaluate-test) - -ifeq ($(run-built-tests),yes) -tests-special += $(objpfx)tst-prelink-cmp.out -endif endif |