lol

glibc: use patch from ArchLinux to re-enable DT_HASH

+152
+7
pkgs/development/libraries/glibc/common.nix
··· 88 88 ./nix-nss-open-files.patch 89 89 90 90 ./0001-Revert-Remove-all-usage-of-BASH-or-BASH-in-installed.patch 91 + 92 + /* Patch derived from archlinux (at the time of adding they're at 2.37), 93 + https://github.com/archlinux/svntogit-packages/blob/packages/glibc/trunk/reenable_DT_HASH.patch 94 + 95 + See https://github.com/NixOS/nixpkgs/pull/188492#issuecomment-1233802991 for context. 96 + */ 97 + ./reenable_DT_HASH.patch 91 98 ] 92 99 ++ lib.optional stdenv.hostPlatform.isMusl ./fix-rpc-types-musl-conflicts.patch 93 100 ++ lib.optional stdenv.buildPlatform.isDarwin ./darwin-cross-build.patch;
+145
pkgs/development/libraries/glibc/reenable_DT_HASH.patch
··· 1 + From e47de5cb2d4dbecb58f569ed241e8e95c568f03c Mon Sep 17 00:00:00 2001 2 + From: Florian Weimer <fweimer@redhat.com> 3 + Date: Fri, 29 Apr 2022 16:37:51 +0200 4 + Subject: [PATCH] Do not use --hash-style=both for building glibc shared 5 + objects 6 + 7 + The comment indicates that --hash-style=both was used to maintain 8 + compatibility with static dlopen, but we had many internal ABI 9 + changes since then, so this compatiblity does not add value anymore. 10 + 11 + Reviewed-by: Carlos O'Donell <carlos@redhat.com> 12 + --- 13 + Makeconfig | 9 +++++++++ 14 + Makerules | 7 +++++++ 15 + config.make.in | 1 + 16 + configure | 28 ++++++++++++++++++++++++++++ 17 + configure.ac | 16 ++++++++++++++++ 18 + 5 files changed, 61 insertions(+) 19 + 20 + diff --git b/Makeconfig a/Makeconfig 21 + index 760f14e92f..0aa5fb0099 100644 22 + --- b/Makeconfig 23 + +++ a/Makeconfig 24 + @@ -362,6 +362,15 @@ relro-LDFLAGS = -Wl,-z,relro 25 + LDFLAGS.so += $(relro-LDFLAGS) 26 + LDFLAGS-rtld += $(relro-LDFLAGS) 27 + 28 + +ifeq (yes,$(have-hash-style)) 29 + +# For the time being we unconditionally use 'both'. At some time we 30 + +# should declare statically linked code as 'out of luck' and compile 31 + +# with --hash-style=gnu only. 32 + +hashstyle-LDFLAGS = -Wl,--hash-style=both 33 + +LDFLAGS.so += $(hashstyle-LDFLAGS) 34 + +LDFLAGS-rtld += $(hashstyle-LDFLAGS) 35 + +endif 36 + + 37 + ifeq (no,$(build-pie-default)) 38 + pie-default = $(no-pie-ccflag) 39 + else # build-pie-default 40 + diff --git b/Makerules a/Makerules 41 + index 354528b8c7..428464f092 100644 42 + --- b/Makerules 43 + +++ a/Makerules 44 + @@ -557,6 +557,13 @@ $(common-objpfx)shlib.lds: $(common-objpfx)config.make $(..)Makerules 45 + -Wl,--verbose 2>/dev/null | \ 46 + sed > $@T \ 47 + -e '/^=========/,/^=========/!d;/^=========/d' \ 48 + + $(if $(filter yes,$(have-hash-style)), \ 49 + + -e 's/^.*\.gnu\.hash[ ]*:.*$$/ .note.ABI-tag : { *(.note.ABI-tag) } &/' \ 50 + + -e '/^[ ]*\.hash[ ]*:.*$$/{h;d;}' \ 51 + + -e '/DATA_SEGMENT_ALIGN/{H;g}' \ 52 + + , \ 53 + + -e 's/^.*\.hash[ ]*:.*$$/ .note.ABI-tag : { *(.note.ABI-tag) } &/' \ 54 + + ) \ 55 + -e 's/^.*\*(\.dynbss).*$$/& \ 56 + PROVIDE(__start___libc_freeres_ptrs = .); \ 57 + *(__libc_freeres_ptrs) \ 58 + diff --git b/config.make.in a/config.make.in 59 + index fff4c78dd0..bf728c71c0 100644 60 + --- b/config.make.in 61 + +++ a/config.make.in 62 + @@ -70,6 +70,7 @@ have-libcap = @have_libcap@ 63 + have-cc-with-libunwind = @libc_cv_cc_with_libunwind@ 64 + fno-unit-at-a-time = @fno_unit_at_a_time@ 65 + bind-now = @bindnow@ 66 + +have-hash-style = @libc_cv_hashstyle@ 67 + use-default-link = @use_default_link@ 68 + have-cxx-thread_local = @libc_cv_cxx_thread_local@ 69 + have-loop-to-function = @libc_cv_cc_loop_to_function@ 70 + diff --git b/configure a/configure 71 + index 716dc041b6..5a730dc5fc 100755 72 + --- b/configure 73 + +++ a/configure 74 + @@ -622,6 +622,7 @@ libc_cv_cc_nofma 75 + libc_cv_mtls_dialect_gnu2 76 + fno_unit_at_a_time 77 + libc_cv_has_glob_dat 78 + +libc_cv_hashstyle 79 + libc_cv_fpie 80 + libc_cv_z_execstack 81 + ASFLAGS_config 82 + @@ -6193,6 +6194,33 @@ $as_echo "$libc_cv_fpie" >&6; } 83 + 84 + 85 + 86 + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --hash-style option" >&5 87 + +$as_echo_n "checking for --hash-style option... " >&6; } 88 + +if ${libc_cv_hashstyle+:} false; then : 89 + + $as_echo_n "(cached) " >&6 90 + +else 91 + + cat > conftest.c <<EOF 92 + +int _start (void) { return 42; } 93 + +EOF 94 + +if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp 95 + + -fPIC -shared -o conftest.so conftest.c 96 + + -Wl,--hash-style=both -nostdlib 1>&5' 97 + + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 98 + + (eval $ac_try) 2>&5 99 + + ac_status=$? 100 + + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 101 + + test $ac_status = 0; }; } 102 + +then 103 + + libc_cv_hashstyle=yes 104 + +else 105 + + libc_cv_hashstyle=no 106 + +fi 107 + +rm -f conftest* 108 + +fi 109 + +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_hashstyle" >&5 110 + +$as_echo "$libc_cv_hashstyle" >&6; } 111 + + 112 + + 113 + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GLOB_DAT reloc" >&5 114 + $as_echo_n "checking for GLOB_DAT reloc... " >&6; } 115 + if ${libc_cv_has_glob_dat+:} false; then : 116 + diff --git b/configure.ac a/configure.ac 117 + index d08ad4d64e..a045f6608e 100644 118 + --- b/configure.ac 119 + +++ a/configure.ac 120 + @@ -1360,6 +1360,22 @@ LIBC_TRY_CC_OPTION([-fpie], [libc_cv_fpie=yes], [libc_cv_fpie=no]) 121 + 122 + AC_SUBST(libc_cv_fpie) 123 + 124 + +AC_CACHE_CHECK(for --hash-style option, 125 + + libc_cv_hashstyle, [dnl 126 + +cat > conftest.c <<EOF 127 + +int _start (void) { return 42; } 128 + +EOF 129 + +if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp 130 + + -fPIC -shared -o conftest.so conftest.c 131 + + -Wl,--hash-style=both -nostdlib 1>&AS_MESSAGE_LOG_FD]) 132 + +then 133 + + libc_cv_hashstyle=yes 134 + +else 135 + + libc_cv_hashstyle=no 136 + +fi 137 + +rm -f conftest*]) 138 + +AC_SUBST(libc_cv_hashstyle) 139 + + 140 + AC_CACHE_CHECK(for GLOB_DAT reloc, 141 + libc_cv_has_glob_dat, [dnl 142 + cat > conftest.c <<EOF 143 + -- 144 + 2.37.1 145 +