X-Git-Url: https://git.tld-linux.org/?a=blobdiff_plain;f=issue4664051.patch;fp=issue4664051.patch;h=9258f6367d1d46a2c81c1cd571528133aab4c10c;hb=d92232bc084829645b9779e39db18016da48f91b;hp=0000000000000000000000000000000000000000;hpb=28409fb3d5b28ec94c6caa090ef77bb740e87741;p=packages%2Fgcc.git diff --git a/issue4664051.patch b/issue4664051.patch new file mode 100644 index 0000000..9258f63 --- /dev/null +++ b/issue4664051.patch @@ -0,0 +1,542 @@ +http://patchwork.ozlabs.org/patch/102292/ +http://codereview.appspot.com/4664051/ +http://sourceware.org/ml/binutils/2011-01/msg00178.html +http://anonscm.debian.org/viewvc/gcccvs/branches/sid/gcc-4.6/debian/patches/gold-and-ld.diff + +Index: gcc/doc/invoke.texi +=================================================================== +--- gcc/doc/invoke.texi (revision 175346) ++++ gcc/doc/invoke.texi (working copy) +@@ -418,7 +418,7 @@ + -funit-at-a-time -funroll-all-loops -funroll-loops @gol + -funsafe-loop-optimizations -funsafe-math-optimizations -funswitch-loops @gol + -fvariable-expansion-in-unroller -fvect-cost-model -fvpt -fweb @gol +--fwhole-program -fwpa -fuse-linker-plugin @gol ++-fwhole-program -fwpa -fuse-ld -fuse-linker-plugin @gol + --param @var{name}=@var{value} + -O -O0 -O1 -O2 -O3 -Os -Ofast} + +@@ -8017,6 +8017,16 @@ + + Enabled at levels @option{-O}, @option{-O2}, @option{-O3}, @option{-Os}. + ++@item -fuse-ld=gold ++Use the @command{gold} linker instead of the default linker. ++This option is only necessary if GCC has been configured with ++@option{--enable-gold} and @option{--enable-ld=default}. ++ ++@item -fuse-ld=bfd ++Use the @command{ld.bfd} linker instead of the default linker. ++This option is only necessary if GCC has been configured with ++@option{--enable-gold} and @option{--enable-ld}. ++ + @item -fcprop-registers + @opindex fcprop-registers + After register allocation and post-register allocation instruction splitting, +Index: gcc/configure +=================================================================== +--- gcc/configure (revision 175346) ++++ gcc/configure (working copy) +@@ -681,6 +681,7 @@ + gcc_cv_objdump + ORIGINAL_NM_FOR_TARGET + gcc_cv_nm ++ORIGINAL_GOLD_FOR_TARGET + ORIGINAL_LD_FOR_TARGET + ORIGINAL_PLUGIN_LD_FOR_TARGET + gcc_cv_ld +@@ -21131,6 +21132,21 @@ + fi + fi + ++gcc_cv_ld_gold_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gold ++ ++if test "${gcc_cv_gold+set}" = set; then : ++ ++else ++ ++if test -f $gcc_cv_ld_gold_srcdir/configure.ac \ ++ && test -f ../gold/Makefile \ ++ && test x$build = x$host; then ++ gcc_cv_gold=../gold/ld-new$build_exeext ++else ++ gcc_cv_gold='' ++fi ++fi ++ + ORIGINAL_PLUGIN_LD_FOR_TARGET=$gcc_cv_ld + PLUGIN_LD=`basename $gcc_cv_ld` + +@@ -21170,6 +21186,9 @@ + ;; + esac + ++ORIGINAL_GOLD_FOR_TARGET=$gcc_cv_gold ++ ++ + { $as_echo "$as_me:${as_lineno-$LINENO}: checking what linker to use" >&5 + $as_echo_n "checking what linker to use... " >&6; } + if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then +Index: gcc/gcc.c +=================================================================== +--- gcc/gcc.c (revision 175346) ++++ gcc/gcc.c (working copy) +@@ -657,6 +657,9 @@ + }"PLUGIN_COND_CLOSE" \ + %{flto|flto=*:%max_errors = value; + break; + ++ case OPT_fuse_ld_: + case OPT_fuse_linker_plugin: +- /* No-op. Used by the driver and passed to us because it starts with f.*/ ++ /* No-op. Used by the driver and passed to us because it starts with f. */ + break; + + case OPT_Wuninitialized: +Index: gcc/configure.ac +=================================================================== +--- gcc/configure.ac (revision 175346) ++++ gcc/configure.ac (working copy) +@@ -1974,6 +1974,17 @@ + AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET) + fi]) + ++gcc_cv_ld_gold_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gold ++ ++AS_VAR_SET_IF(gcc_cv_gold,, [ ++if test -f $gcc_cv_ld_gold_srcdir/configure.ac \ ++ && test -f ../gold/Makefile \ ++ && test x$build = x$host; then ++ gcc_cv_gold=../gold/ld-new$build_exeext ++else ++ gcc_cv_gold='' ++fi]) ++ + ORIGINAL_PLUGIN_LD_FOR_TARGET=$gcc_cv_ld + PLUGIN_LD=`basename $gcc_cv_ld` + AC_ARG_WITH(plugin-ld, +@@ -2003,6 +2014,9 @@ + *) AC_CONFIG_FILES(collect-ld:exec-tool.in, [chmod +x collect-ld]) ;; + esac + ++ORIGINAL_GOLD_FOR_TARGET=$gcc_cv_gold ++AC_SUBST(ORIGINAL_GOLD_FOR_TARGET) ++ + AC_MSG_CHECKING(what linker to use) + if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then + # Single tree build which includes ld. We want to prefer it +Index: gcc/exec-tool.in +=================================================================== +--- gcc/exec-tool.in (revision 175346) ++++ gcc/exec-tool.in (working copy) +@@ -1,6 +1,6 @@ + #! /bin/sh + +-# Copyright (C) 2007, 2008, 2010 Free Software Foundation, Inc. ++# Copyright (C) 2007, 2008, 2010, 2011 Free Software Foundation, Inc. + # This file is part of GCC. + + # GCC is free software; you can redistribute it and/or modify +@@ -21,11 +21,13 @@ + + ORIGINAL_AS_FOR_TARGET="@ORIGINAL_AS_FOR_TARGET@" + ORIGINAL_LD_FOR_TARGET="@ORIGINAL_LD_FOR_TARGET@" ++ORIGINAL_GOLD_FOR_TARGET="@ORIGINAL_GOLD_FOR_TARGET@" + ORIGINAL_PLUGIN_LD_FOR_TARGET="@ORIGINAL_PLUGIN_LD_FOR_TARGET@" + ORIGINAL_NM_FOR_TARGET="@ORIGINAL_NM_FOR_TARGET@" + exeext=@host_exeext@ + fast_install=@enable_fast_install@ + objdir=@objdir@ ++version="1.1" + + invoked=`basename "$0"` + id=$invoked +@@ -36,15 +38,44 @@ + dir=gas + ;; + collect-ld) +- # when using a linker plugin, gcc will always pass '-plugin' as the +- # first or second option to the linker. +- if test x"$1" = "x-plugin" || test x"$2" = "x-plugin"; then +- original=$ORIGINAL_PLUGIN_LD_FOR_TARGET +- else +- original=$ORIGINAL_LD_FOR_TARGET ++ prog=ld-new$exeext ++ # Look for the a command line option ++ # specifying the linker to be used. ++ case " $* " in ++ *\ -use-gold\ *) ++ original=$ORIGINAL_GOLD_FOR_TARGET ++ dir=gold ++ ;; ++ *\ -use-ld\ * | *\ -use-ld.bfd\ *) ++ original=$ORIGINAL_LD_FOR_TARGET ++ dir=ld ++ ;; ++ *\ -plugin\ *) ++ original=$ORIGINAL_PLUGIN_LD_FOR_TARGET ++ dir=ld ++ ;; ++ *) ++ original=$ORIGINAL_LD_FOR_TARGET ++ dir=ld ++ ;; ++ esac ++ ++ # If the selected linker has not been configured then ++ # try using the others, in the order PLUGIN-LD, LD, GOLD. ++ if test x"$original" = x; then ++ if test x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" != x; then ++ original=$ORIGINAL_PLUGIN_LD_FOR_TARGET ++ dir=ld ++ elif test x"$ORIGINAL_LD_FOR_TARGET" != x; then ++ original=$ORIGINAL_LD_FOR_TARGET ++ dir=ld ++ elif test x"$ORIGINAL_GOLD_FOR_TARGET" != x; then ++ original=$ORIGINAL_GOLD_FOR_TARGET ++ dir=gold ++ # Otherwise do nothing - the case statement below ++ # will issue an error message for us. ++ fi + fi +- prog=ld-new$exeext +- dir=ld + id=ld + ;; + nm) +@@ -61,29 +92,58 @@ + scriptdir=`cd "$tdir" && pwd` + + if test -x $scriptdir/../$dir/$prog; then +- test "$fast_install" = yes || exec $scriptdir/../$dir/$prog ${1+"$@"} ++ if test "$fast_install" = yes; then ++ # If libtool did everything it needs to do, there's a fast path. ++ lt_prog=$scriptdir/../$dir/$objdir/lt-$prog + +- # if libtool did everything it needs to do, there's a fast path +- lt_prog=$scriptdir/../$dir/$objdir/lt-$prog +- test -x $lt_prog && exec $lt_prog ${1+"$@"} +- +- # libtool has not relinked ld-new yet, but we cannot just use the +- # previous stage (because then the relinking would just never happen!). +- # So we take extra care to use prev-ld/ld-new *on recursive calls*. +- eval LT_RCU="\${LT_RCU_$id}" +- test x"$LT_RCU" = x"1" && exec $scriptdir/../prev-$dir/$prog ${1+"$@"} +- +- eval LT_RCU_$id=1 +- export LT_RCU_$id +- $scriptdir/../$dir/$prog ${1+"$@"} +- result=$? +- exit $result +- ++ if test -x $lt_prog; then ++ original=$lt_prog ++ else ++ # Libtool has not relinked ld-new yet, but we cannot just use the ++ # previous stage (because then the relinking would just never happen!). ++ # So we take extra care to use prev-ld/ld-new *on recursive calls*. ++ eval LT_RCU="\${LT_RCU_$id}" ++ if test x"$LT_RCU" = x"1"; then ++ original=$scriptdir/../prev-$dir/$prog ++ else ++ eval LT_RCU_$id=1 ++ export LT_RCU_$id ++ case " $* " in ++ *\ -v\ *) ++ echo "$invoked $version" ++ echo $scriptdir/../$dir/$prog $* ++ ;; ++ esac ++ $scriptdir/../$dir/$prog ${1+"$@"} ++ result=$? ++ exit $result ++ fi ++ fi ++ else ++ original=$scriptdir/../$dir/$prog ++ fi + else +- exec $scriptdir/../prev-$dir/$prog ${1+"$@"} ++ original=$scriptdir/../prev-$dir/$prog + fi + ;; +- *) +- exec $original ${1+"$@"} ++ "") ++ echo "$invoked: executable not configured" ++ exit 1 + ;; + esac ++ ++# If -v has been used then display our version number ++# and then echo the command we are about to invoke. ++case " $* " in ++ *\ -v\ *) ++ echo "$invoked $version" ++ echo $original $* ++ ;; ++esac ++ ++if test -x $original; then ++ exec "$original" ${1+"$@"} ++else ++ echo "$invoked: unable to locate executable: $original" ++ exit 1 ++fi +Index: gcc/common.opt +=================================================================== +--- gcc/common.opt (revision 175346) ++++ gcc/common.opt (working copy) +@@ -2138,6 +2138,9 @@ + Common Report Var(flag_unwind_tables) Optimization + Just generate unwind tables for exception handling + ++fuse-ld= ++Common Joined Undocumented ++ + fuse-linker-plugin + Common Undocumented + +Index: gcc/collect2.c +=================================================================== +--- gcc/collect2.c (revision 175346) ++++ gcc/collect2.c (working copy) +@@ -1075,17 +1075,19 @@ + int + main (int argc, char **argv) + { +- static const char *const ld_suffix = "ld"; +- static const char *const plugin_ld_suffix = PLUGIN_LD; +- static const char *const real_ld_suffix = "real-ld"; ++ static const char *const ld_suffix = "ld"; ++ static const char *const gold_suffix = "ld.gold"; ++ static const char *const bfd_ld_suffix = "ld.bfd"; ++ static const char *const plugin_ld_suffix = PLUGIN_LD; ++ static const char *const real_ld_suffix = "real-ld"; + static const char *const collect_ld_suffix = "collect-ld"; +- static const char *const nm_suffix = "nm"; +- static const char *const gnm_suffix = "gnm"; ++ static const char *const nm_suffix = "nm"; ++ static const char *const gnm_suffix = "gnm"; + #ifdef LDD_SUFFIX +- static const char *const ldd_suffix = LDD_SUFFIX; ++ static const char *const ldd_suffix = LDD_SUFFIX; + #endif +- static const char *const strip_suffix = "strip"; +- static const char *const gstrip_suffix = "gstrip"; ++ static const char *const strip_suffix = "strip"; ++ static const char *const gstrip_suffix = "gstrip"; + + #ifdef CROSS_DIRECTORY_STRUCTURE + /* If we look for a program in the compiler directories, we just use +@@ -1095,6 +1097,10 @@ + + const char *const full_ld_suffix = + concat(target_machine, "-", ld_suffix, NULL); ++ const char *const full_gold_suffix = ++ concat (target_machine, "-", gold_suffix, NULL); ++ const char *const full_bfd_ld_suffix = ++ concat (target_machine, "-", bfd_ld_suffix, NULL); + const char *const full_plugin_ld_suffix = + concat(target_machine, "-", plugin_ld_suffix, NULL); + const char *const full_nm_suffix = +@@ -1110,15 +1116,17 @@ + const char *const full_gstrip_suffix = + concat (target_machine, "-", gstrip_suffix, NULL); + #else +- const char *const full_ld_suffix = ld_suffix; ++ const char *const full_ld_suffix = ld_suffix; ++ const char *const full_gold_suffix = gold_suffix; ++ const char *const full_bfd_ld_suffix = bfd_ld_suffix; + const char *const full_plugin_ld_suffix = plugin_ld_suffix; +- const char *const full_nm_suffix = nm_suffix; +- const char *const full_gnm_suffix = gnm_suffix; ++ const char *const full_nm_suffix = nm_suffix; ++ const char *const full_gnm_suffix = gnm_suffix; + #ifdef LDD_SUFFIX +- const char *const full_ldd_suffix = ldd_suffix; ++ const char *const full_ldd_suffix = ldd_suffix; + #endif +- const char *const full_strip_suffix = strip_suffix; +- const char *const full_gstrip_suffix = gstrip_suffix; ++ const char *const full_strip_suffix = strip_suffix; ++ const char *const full_gstrip_suffix = gstrip_suffix; + #endif /* CROSS_DIRECTORY_STRUCTURE */ + + const char *arg; +@@ -1132,7 +1140,13 @@ + const char **c_ptr; + char **ld1_argv; + const char **ld1; +- bool use_plugin = false; ++ enum linker_select ++ { ++ DFLT_LINKER, ++ PLUGIN_LINKER, ++ GOLD_LINKER, ++ BFD_LINKER ++ } selected_linker = DFLT_LINKER; + + /* The kinds of symbols we will have to consider when scanning the + outcome of a first pass link. This is ALL to start with, then might +@@ -1209,15 +1223,21 @@ + else if (! strcmp (argv[i], "-flto-partition=none")) + no_partition = true; + else if ((! strncmp (argv[i], "-flto=", 6) +- || ! strcmp (argv[i], "-flto")) && ! use_plugin) ++ || ! strcmp (argv[i], "-flto")) ++ && selected_linker != PLUGIN_LINKER) + lto_mode = LTO_MODE_WHOPR; + else if (!strncmp (argv[i], "-fno-lto", 8)) + lto_mode = LTO_MODE_NONE; + else if (! strcmp (argv[i], "-plugin")) + { +- use_plugin = true; ++ selected_linker = PLUGIN_LINKER; + lto_mode = LTO_MODE_NONE; + } ++ else if (! strcmp (argv[i], "-use-gold")) ++ selected_linker = GOLD_LINKER; ++ else if (! strcmp (argv[i], "-use-ld")) ++ selected_linker = BFD_LINKER; ++ + #ifdef COLLECT_EXPORT_LIST + /* since -brtl, -bexport, -b64 are not position dependent + also check for them here */ +@@ -1299,36 +1319,109 @@ + /* Try to discover a valid linker/nm/strip to use. */ + + /* Maybe we know the right file to use (if not cross). */ +- ld_file_name = 0; ++ ld_file_name = NULL; + #ifdef DEFAULT_LINKER + if (access (DEFAULT_LINKER, X_OK) == 0) + ld_file_name = DEFAULT_LINKER; +- if (ld_file_name == 0) ++ if (ld_file_name == NULL) + #endif + #ifdef REAL_LD_FILE_NAME + ld_file_name = find_a_file (&path, REAL_LD_FILE_NAME); +- if (ld_file_name == 0) ++ if (ld_file_name == NULL) + #endif + /* Search the (target-specific) compiler dirs for ld'. */ + ld_file_name = find_a_file (&cpath, real_ld_suffix); + /* Likewise for `collect-ld'. */ +- if (ld_file_name == 0) ++ if (ld_file_name == NULL) + ld_file_name = find_a_file (&cpath, collect_ld_suffix); + /* Search the compiler directories for `ld'. We have protection against + recursive calls in find_a_file. */ +- if (ld_file_name == 0) +- ld_file_name = find_a_file (&cpath, +- use_plugin +- ? plugin_ld_suffix +- : ld_suffix); ++ if (ld_file_name == NULL) ++ switch (selected_linker) ++ { ++ default: ++ case DFLT_LINKER: ++ ld_file_name = find_a_file (&cpath, ld_suffix); ++ break; ++ case PLUGIN_LINKER: ++ ld_file_name = find_a_file (&cpath, plugin_ld_suffix); ++ break; ++ case GOLD_LINKER: ++ ld_file_name = find_a_file (&cpath, gold_suffix); ++ break; ++ case BFD_LINKER: ++ ld_file_name = find_a_file (&cpath, bfd_ld_suffix); ++ break; ++ } + /* Search the ordinary system bin directories + for `ld' (if native linking) or `TARGET-ld' (if cross). */ +- if (ld_file_name == 0) +- ld_file_name = find_a_file (&path, +- use_plugin +- ? full_plugin_ld_suffix +- : full_ld_suffix); ++ if (ld_file_name == NULL) ++ switch (selected_linker) ++ { ++ default: ++ case DFLT_LINKER: ++ ld_file_name = find_a_file (&path, full_ld_suffix); ++ break; ++ case PLUGIN_LINKER: ++ ld_file_name = find_a_file (&path, full_plugin_ld_suffix); ++ break; ++ case GOLD_LINKER: ++ ld_file_name = find_a_file (&path, full_gold_suffix); ++ break; ++ case BFD_LINKER: ++ ld_file_name = find_a_file (&path, full_bfd_ld_suffix); ++ break; ++ } ++ /* If we failed to find a plugin-capable linker, try the ordinary one. */ ++ if (ld_file_name == NULL && selected_linker == PLUGIN_LINKER) ++ ld_file_name = find_a_file (&cpath, ld_suffix); + ++ if ((vflag || debug) && ld_file_name == NULL) ++ { ++ struct prefix_list * p; ++ const char * s; ++ ++ notice ("collect2: warning: unable to find linker.\n"); ++ ++#ifdef DEFAULT_LINKER ++ notice (" Searched for this absolute executable:\n"); ++ notice (" %s\n", DEFAULT_LINKER); ++#endif ++ ++ notice (" Searched in these paths:\n"); ++ for (p = cpath.plist; p != NULL; p = p->next) ++ notice (" %s\n", p->prefix); ++ notice (" For these executables:\n"); ++ notice (" %s\n", real_ld_suffix); ++ notice (" %s\n", collect_ld_suffix); ++ switch (selected_linker) ++ { ++ default: ++ case DFLT_LINKER: s = ld_suffix; break; ++ case PLUGIN_LINKER: s = plugin_ld_suffix; break; ++ case GOLD_LINKER: s = gold_suffix; break; ++ case BFD_LINKER: s = bfd_ld_suffix; break; ++ } ++ notice (" %s\n", s); ++ ++ notice (" And searched in these paths:\n"); ++ for (p = path.plist; p != NULL; p = p->next) ++ notice (" %s\n", p->prefix); ++ notice (" For these executables:\n"); ++#ifdef REAL_LD_FILE_NAME ++ notice (" %s\n", REAL_LD_FILE_NAME); ++#endif ++ switch (selected_linker) ++ { ++ default: ++ case DFLT_LINKER: s = full_ld_suffix; break; ++ case PLUGIN_LINKER: s = full_plugin_ld_suffix; break; ++ case GOLD_LINKER: s = full_gold_suffix; break; ++ case BFD_LINKER: s = full_bfd_ld_suffix; break; ++ } ++ notice (" %s\n", s); ++ } ++ + #ifdef REAL_NM_FILE_NAME + nm_file_name = find_a_file (&path, REAL_NM_FILE_NAME); + if (nm_file_name == 0)