diff options
Diffstat (limited to 'pkgs/development/compilers/gcc/7')
| -rw-r--r-- | pkgs/development/compilers/gcc/7/default.nix | 37 | ||||
| -rw-r--r-- | pkgs/development/compilers/gcc/7/riscv-no-relax.patch | 109 | ||||
| -rw-r--r-- | pkgs/development/compilers/gcc/7/riscv-pthread-reentrant.patch | 13 |
3 files changed, 136 insertions, 23 deletions
diff --git a/pkgs/development/compilers/gcc/7/default.nix b/pkgs/development/compilers/gcc/7/default.nix index e75e22efce1f..d2fc25dad588 100644 --- a/pkgs/development/compilers/gcc/7/default.nix +++ b/pkgs/development/compilers/gcc/7/default.nix @@ -3,8 +3,6 @@ , langObjC ? targetPlatform.isDarwin , langObjCpp ? targetPlatform.isDarwin , langJava ? false -, langAda ? false -, langVhdl ? false , langGo ? false , profiledCompiler ? false , staticCompiler ? false @@ -21,13 +19,11 @@ , libXrender ? null, xproto ? null, renderproto ? null, xextproto ? null , libXrandr ? null, libXi ? null, inputproto ? null, randrproto ? null , x11Support ? langJava -, gnatboot ? null , enableMultilib ? false , enablePlugin ? hostPlatform == buildPlatform # Whether to support user-supplied plug-ins , name ? "gcc" , libcCross ? null , crossStageStatic ? false -, gnat ? null , libpthread ? null, libpthreadCross ? null # required for GNU/Hurd , stripped ? true , gnused ? null @@ -40,8 +36,6 @@ assert langJava -> zip != null && unzip != null && zlib != null && boehmgc != null && perl != null; # for `--enable-java-home' -assert langAda -> gnatboot != null; -assert langVhdl -> gnat != null; # LTO needs libelf and zlib. assert libelf != null -> zlib != null; @@ -63,16 +57,17 @@ let version = "7.3.0"; enableParallelBuilding = true; patches = - [ ] + [ # https://gcc.gnu.org/ml/gcc-patches/2018-02/msg00633.html + ./riscv-pthread-reentrant.patch + # https://gcc.gnu.org/ml/gcc-patches/2018-03/msg00297.html + ./riscv-no-relax.patch + ] ++ optional (targetPlatform != hostPlatform) ../libstdc++-target.patch ++ optional noSysDirs ../no-sys-dirs.patch ++ optional (hostPlatform != buildPlatform) (fetchpatch { # XXX: Refine when this should be applied url = "https://git.busybox.net/buildroot/plain/package/gcc/7.1.0/0900-remove-selftests.patch?id=11271540bfe6adafbc133caf6b5b902a816f5f02"; sha256 = "0mrvxsdwip2p3l17dscpc1x8vhdsciqw1z5q9i6p5g9yg1cqnmgs"; }) - # The GNAT Makefiles did not pay attention to CFLAGS_FOR_TARGET for its - # target libraries and tools. - ++ optional langAda ../gnat-cflags.patch ++ optional langFortran ../gfortran-driving.patch; javaEcj = fetchurl { @@ -203,7 +198,12 @@ stdenv.mkDerivation ({ --replace "-install_name \\\$rpath/\\\$soname" "-install_name $lib/lib/\\\$soname" ''; - postPatch = + postPatch = '' + configureScripts=$(find . -name configure) + for configureScript in $configureScripts; do + patchShebangs $configureScript + done + '' + ( if (hostPlatform.isHurd || (libcCross != null # e.g., building `gcc.crossDrv' && libcCross ? crossConfig @@ -262,7 +262,7 @@ stdenv.mkDerivation ({ sed -i gcc/config/linux.h -e '1i#undef LOCAL_INCLUDE_DIR' '' ) - else null; + else ""); # TODO(@Ericson2314): Make passthru instead. Weird to avoid mass rebuild, crossStageStatic = targetPlatform == hostPlatform || crossStageStatic; @@ -290,8 +290,6 @@ stdenv.mkDerivation ({ ++ (optionals langJava [ boehmgc zip unzip ]) ++ (optionals javaAwtGtk ([ gtk2 libart_lgpl ] ++ xlibs)) ++ (optionals (targetPlatform != hostPlatform) [targetPackages.stdenv.cc.bintools]) - ++ (optionals langAda [gnatboot]) - ++ (optionals langVhdl [gnat]) # The builder relies on GNU sed (for instance, Darwin's `sed' fails with # "-i may not be used with stdin"), and `stdenvNative' doesn't provide it. @@ -343,8 +341,6 @@ stdenv.mkDerivation ({ ++ optional langCC "c++" ++ optional langFortran "fortran" ++ optional langJava "java" - ++ optional langAda "ada" - ++ optional langVhdl "vhdl" ++ optional langGo "go" ++ optional langObjC "objc" ++ optional langObjCpp "obj-c++" @@ -377,9 +373,6 @@ stdenv.mkDerivation ({ optional javaAwtGtk "--enable-java-awt=gtk" ++ optional (langJava && javaAntlr != null) "--with-antlr-jar=${javaAntlr}" ++ - # Ada - optional langAda "--enable-libada" ++ - (import ../common/platform-flags.nix { inherit (stdenv) lib targetPlatform; }) ++ optional (targetPlatform != hostPlatform) crossConfigureFlags ++ optional (!bootstrap) "--disable-bootstrap" ++ @@ -472,7 +465,7 @@ stdenv.mkDerivation ({ ]); passthru = - { inherit langC langCC langObjC langObjCpp langAda langFortran langVhdl langGo version; isGNU = true; }; + { inherit langC langCC langObjC langObjCpp langFortran langGo version; isGNU = true; }; inherit enableParallelBuilding enableMultilib; @@ -495,12 +488,10 @@ stdenv.mkDerivation ({ maintainers = with stdenv.lib.maintainers; [ ]; - # gnatboot is not available out of linux platforms, so we disable the darwin build - # for the gnat (ada compiler). platforms = stdenv.lib.platforms.linux ++ stdenv.lib.platforms.freebsd ++ - optionals (langAda == false) stdenv.lib.platforms.darwin; + stdenv.lib.platforms.darwin; }; } diff --git a/pkgs/development/compilers/gcc/7/riscv-no-relax.patch b/pkgs/development/compilers/gcc/7/riscv-no-relax.patch new file mode 100644 index 000000000000..93d9cd1d60f5 --- /dev/null +++ b/pkgs/development/compilers/gcc/7/riscv-no-relax.patch @@ -0,0 +1,109 @@ +commit e7c570f37384d824cb9725f237920e9691e57269 +gpg: Signature made Tue 06 Mar 2018 04:52:46 PM PST +gpg: using RSA key 00CE76D1834960DFCE886DF8EF4CA1502CCBAB41 +gpg: issuer "palmer@dabbelt.com" +gpg: Good signature from "Palmer Dabbelt <palmer@dabbelt.com>" [ultimate] +gpg: aka "Palmer Dabbelt <palmer@sifive.com>" [ultimate] +Author: Palmer Dabbelt <palmer@sifive.com> +Date: Thu Mar 1 12:01:06 2018 -0800 + + RISC-V: Add and document the "-mno-relax" option + + RISC-V relies on aggressive linker relaxation to get good code size. As + a result no text symbol addresses can be known until link time, which + means that alignment must be handled during the link. This alignment + pass is essentially just another linker relaxation, so this has the + unfortunate side effect that linker relaxation is required for + correctness on many RISC-V targets. + + The RISC-V assembler has supported an ".option norelax" for a long time + because there are situations in which linker relaxation is a bad idea -- + the canonical example is when trying to materialize the initial value of + the global pointer into a register, which would otherwise be relaxed to + a NOP. We've been relying on users who want to disable relaxation for + an entire link to pass "-Wl,--no-relax", but that still relies on the + linker relaxing R_RISCV_ALIGN to handle alignment despite it not being + strictly necessary. + + This patch adds a GCC option, "-mno-relax", that disable linker + relaxation by adding ".option norelax" to the top of every generated + assembly file. The assembler is smart enough to handle alignment at + assemble time for files that have never emitted a relaxable relocation, + so this is sufficient to really disable all relaxations in the linker, + which results in significantly faster link times for large objects. + + This also has the side effect of allowing toolchains that don't support + linker relaxation (LLVM and the Linux module loader) to function + correctly. Toolchains that don't support linker relaxation should + default to "-mno-relax" and error when presented with any R_RISCV_ALIGN + relocation as those need to be handled for correctness. + + gcc/ChangeLog + + 2018-03-01 Palmer Dabbelt <palmer@sifive.com> + + * config/riscv/riscv.opt (mrelax): New option. + * config/riscv/riscv.c (riscv_file_start): Emit ".option + "norelax" when riscv_mrelax is disabled. + * doc/invoke.texi (RISC-V): Document "-mrelax" and "-mno-relax". + +diff --git a/gcc/config/riscv/riscv.c b/gcc/config/riscv/riscv.c +index c38f6c394d54..3e81874de232 100644 +--- a/gcc/config/riscv/riscv.c ++++ b/gcc/config/riscv/riscv.c +@@ -3979,6 +3979,11 @@ riscv_file_start (void) + + /* Instruct GAS to generate position-[in]dependent code. */ + fprintf (asm_out_file, "\t.option %spic\n", (flag_pic ? "" : "no")); ++ ++ /* If the user specifies "-mno-relax" on the command line then disable linker ++ relaxation in the assembler. */ ++ if (! riscv_mrelax) ++ fprintf (asm_out_file, "\t.option norelax\n"); + } + + /* Implement TARGET_ASM_OUTPUT_MI_THUNK. Generate rtl rather than asm text +diff --git a/gcc/config/riscv/riscv.opt b/gcc/config/riscv/riscv.opt +index 581a26bb5c1e..b37ac75d9bb4 100644 +--- a/gcc/config/riscv/riscv.opt ++++ b/gcc/config/riscv/riscv.opt +@@ -106,6 +106,11 @@ mexplicit-relocs + Target Report Mask(EXPLICIT_RELOCS) + Use %reloc() operators, rather than assembly macros, to load addresses. + ++mrelax ++Target Bool Var(riscv_mrelax) Init(1) ++Take advantage of linker relaxations to reduce the number of instructions ++required to materialize symbol addresses. ++ + Mask(64BIT) + + Mask(MUL) +diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi +index 8d366c626bae..deb48af2ecad 100644 +--- a/gcc/doc/invoke.texi ++++ b/gcc/doc/invoke.texi +@@ -1042,7 +1042,8 @@ See RS/6000 and PowerPC Options. + -msave-restore -mno-save-restore @gol + -mstrict-align -mno-strict-align @gol + -mcmodel=medlow -mcmodel=medany @gol +--mexplicit-relocs -mno-explicit-relocs @gol} ++-mexplicit-relocs -mno-explicit-relocs @gol ++-mrelax -mno-relax @gol} + + @emph{RL78 Options} + @gccoptlist{-msim -mmul=none -mmul=g13 -mmul=g14 -mallregs @gol +@@ -23102,6 +23103,12 @@ Use or do not use assembler relocation operators when dealing with symbolic + addresses. The alternative is to use assembler macros instead, which may + limit optimization. + ++@item -mrelax ++@itemx -mno-relax ++Take advantage of linker relaxations to reduce the number of instructions ++required to materialize symbol addresses. The default is to take advantage of ++linker relaxations. ++ + @end table + + @node RL78 Options + diff --git a/pkgs/development/compilers/gcc/7/riscv-pthread-reentrant.patch b/pkgs/development/compilers/gcc/7/riscv-pthread-reentrant.patch new file mode 100644 index 000000000000..c7527ffb2b16 --- /dev/null +++ b/pkgs/development/compilers/gcc/7/riscv-pthread-reentrant.patch @@ -0,0 +1,13 @@ +Index: gcc/config/riscv/linux.h +=================================================================== +--- a/gcc/config/riscv/linux.h (revision 257620) ++++ b/gcc/config/riscv/linux.h (revision 257621) +@@ -47,6 +47,8 @@ + + #define ICACHE_FLUSH_FUNC "__riscv_flush_icache" + ++#define CPP_SPEC "%{pthread:-D_REENTRANT}" ++ + #define LINK_SPEC "\ + -melf" XLEN_SPEC "lriscv \ + %{shared} \ |