diff options
Diffstat (limited to 'reenable_DT_HASH.patch')
| -rw-r--r-- | reenable_DT_HASH.patch | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/reenable_DT_HASH.patch b/reenable_DT_HASH.patch deleted file mode 100644 index f828b011bd9f..000000000000 --- a/reenable_DT_HASH.patch +++ /dev/null @@ -1,145 +0,0 @@ -From e47de5cb2d4dbecb58f569ed241e8e95c568f03c Mon Sep 17 00:00:00 2001 -From: Florian Weimer <fweimer@redhat.com> -Date: Fri, 29 Apr 2022 16:37:51 +0200 -Subject: [PATCH] Do not use --hash-style=both for building glibc shared - objects - -The comment indicates that --hash-style=both was used to maintain -compatibility with static dlopen, but we had many internal ABI -changes since then, so this compatiblity does not add value anymore. - -Reviewed-by: Carlos O'Donell <carlos@redhat.com> ---- - Makeconfig | 9 +++++++++ - Makerules | 7 +++++++ - config.make.in | 1 + - configure | 28 ++++++++++++++++++++++++++++ - configure.ac | 16 ++++++++++++++++ - 5 files changed, 61 insertions(+) - -diff --git b/Makeconfig a/Makeconfig -index 760f14e92f..0aa5fb0099 100644 ---- b/Makeconfig -+++ a/Makeconfig -@@ -362,6 +362,15 @@ relro-LDFLAGS = -Wl,-z,relro - LDFLAGS.so += $(relro-LDFLAGS) - LDFLAGS-rtld += $(relro-LDFLAGS) - -+ifeq (yes,$(have-hash-style)) -+# For the time being we unconditionally use 'both'. At some time we -+# should declare statically linked code as 'out of luck' and compile -+# with --hash-style=gnu only. -+hashstyle-LDFLAGS = -Wl,--hash-style=both -+LDFLAGS.so += $(hashstyle-LDFLAGS) -+LDFLAGS-rtld += $(hashstyle-LDFLAGS) -+endif -+ - ifeq (no,$(build-pie-default)) - pie-default = $(no-pie-ccflag) - else # build-pie-default -diff --git b/Makerules a/Makerules -index 354528b8c7..428464f092 100644 ---- b/Makerules -+++ a/Makerules -@@ -557,6 +557,13 @@ $(common-objpfx)shlib.lds: $(common-objpfx)config.make $(..)Makerules - -Wl,--verbose 2>/dev/null | \ - sed > $@T \ - -e '/^=========/,/^=========/!d;/^=========/d' \ -+ $(if $(filter yes,$(have-hash-style)), \ -+ -e 's/^.*\.gnu\.hash[ ]*:.*$$/ .note.ABI-tag : { *(.note.ABI-tag) } &/' \ -+ -e '/^[ ]*\.hash[ ]*:.*$$/{h;d;}' \ -+ -e '/DATA_SEGMENT_ALIGN/{H;g}' \ -+ , \ -+ -e 's/^.*\.hash[ ]*:.*$$/ .note.ABI-tag : { *(.note.ABI-tag) } &/' \ -+ ) \ - -e 's/^.*\*(\.dynbss).*$$/& \ - PROVIDE(__start___libc_freeres_ptrs = .); \ - *(__libc_freeres_ptrs) \ -diff --git b/config.make.in a/config.make.in -index fff4c78dd0..bf728c71c0 100644 ---- b/config.make.in -+++ a/config.make.in -@@ -70,6 +70,7 @@ have-libcap = @have_libcap@ - have-cc-with-libunwind = @libc_cv_cc_with_libunwind@ - fno-unit-at-a-time = @fno_unit_at_a_time@ - bind-now = @bindnow@ -+have-hash-style = @libc_cv_hashstyle@ - use-default-link = @use_default_link@ - have-cxx-thread_local = @libc_cv_cxx_thread_local@ - have-loop-to-function = @libc_cv_cc_loop_to_function@ -diff --git b/configure a/configure -index 716dc041b6..5a730dc5fc 100755 ---- b/configure -+++ a/configure -@@ -622,6 +622,7 @@ libc_cv_cc_nofma - libc_cv_mtls_dialect_gnu2 - fno_unit_at_a_time - libc_cv_has_glob_dat -+libc_cv_hashstyle - libc_cv_fpie - libc_cv_z_execstack - ASFLAGS_config -@@ -6193,6 +6194,33 @@ $as_echo "$libc_cv_fpie" >&6; } - - - -+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --hash-style option" >&5 -+$as_echo_n "checking for --hash-style option... " >&6; } -+if ${libc_cv_hashstyle+:} false; then : -+ $as_echo_n "(cached) " >&6 -+else -+ cat > conftest.c <<EOF -+int _start (void) { return 42; } -+EOF -+if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp -+ -fPIC -shared -o conftest.so conftest.c -+ -Wl,--hash-style=both -nostdlib 1>&5' -+ { { eval echo "\"\$as_me\":${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 -+ libc_cv_hashstyle=yes -+else -+ libc_cv_hashstyle=no -+fi -+rm -f conftest* -+fi -+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_hashstyle" >&5 -+$as_echo "$libc_cv_hashstyle" >&6; } -+ -+ - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GLOB_DAT reloc" >&5 - $as_echo_n "checking for GLOB_DAT reloc... " >&6; } - if ${libc_cv_has_glob_dat+:} false; then : -diff --git b/configure.ac a/configure.ac -index d08ad4d64e..a045f6608e 100644 ---- b/configure.ac -+++ a/configure.ac -@@ -1360,6 +1360,22 @@ LIBC_TRY_CC_OPTION([-fpie], [libc_cv_fpie=yes], [libc_cv_fpie=no]) - - AC_SUBST(libc_cv_fpie) - -+AC_CACHE_CHECK(for --hash-style option, -+ libc_cv_hashstyle, [dnl -+cat > conftest.c <<EOF -+int _start (void) { return 42; } -+EOF -+if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp -+ -fPIC -shared -o conftest.so conftest.c -+ -Wl,--hash-style=both -nostdlib 1>&AS_MESSAGE_LOG_FD]) -+then -+ libc_cv_hashstyle=yes -+else -+ libc_cv_hashstyle=no -+fi -+rm -f conftest*]) -+AC_SUBST(libc_cv_hashstyle) -+ - AC_CACHE_CHECK(for GLOB_DAT reloc, - libc_cv_has_glob_dat, [dnl - cat > conftest.c <<EOF --- -2.37.1 - |