Merge pull request #1054 from riscv-collab/with-isa-spec

Add --with-isa-spec option to configure

Makefile.in

@@ -33,6 +33,7 @@ endif
 WITH_ARCH ?= @WITH_ARCH@
 WITH_ABI ?= @WITH_ABI@
 WITH_TUNE ?= @WITH_TUNE@
+WITH_ISA_SPEC ?= @WITH_ISA_SPEC@
 SYSROOT := $(INSTALL_DIR)/sysroot
 
 SHELL := /bin/sh
@@ -288,7 +289,8 @@ stamps/build-binutils-linux: $(BINUTILS_SRCDIR) $(BINUTILS_SRC_GIT) stamps/check
  --disable-gdb \
  --disable-sim \
  --disable-libdecnumber \
- --disable-readline
+ --disable-readline \
+ $(WITH_ISA_SPEC)
  $(MAKE) -C $(notdir $@)
  $(MAKE) -C $(notdir $@) install
  mkdir -p $(dir $@) && touch $@
@@ -395,6 +397,7 @@ stamps/build-gcc-linux-stage1: $(GCC_SRCDIR) $(GCC_SRC_GIT) stamps/build-binutil
  $(WITH_ABI) \
  $(WITH_ARCH) \
  $(WITH_TUNE) \
+ $(WITH_ISA_SPEC) \
  CFLAGS_FOR_TARGET="-O2 $(CFLAGS_FOR_TARGET)" \
  CXXFLAGS_FOR_TARGET="-O2 $(CXXFLAGS_FOR_TARGET)"
  $(MAKE) -C $(notdir $@) inhibit-libc=true all-gcc
@@ -432,6 +435,7 @@ stamps/build-gcc-linux-stage2: $(GCC_SRCDIR) $(GCC_SRC_GIT) $(addprefix stamps/b
  $(WITH_ABI) \
  $(WITH_ARCH) \
  $(WITH_TUNE) \
+ $(WITH_ISA_SPEC) \
  CFLAGS_FOR_TARGET="-O2 $(CFLAGS_FOR_TARGET)" \
  CXXFLAGS_FOR_TARGET="-O2 $(CXXFLAGS_FOR_TARGET)"
  $(MAKE) -C $(notdir $@)
@@ -455,7 +459,8 @@ stamps/build-binutils-linux-native: $(BINUTILS_SRCDIR) $(BINUTILS_SRC_GIT) stamp
  --disable-gdb \
  --disable-sim \
  --disable-libdecnumber \
- --disable-readline
+ --disable-readline \
+ $(WITH_ISA_SPEC)
  $(MAKE) -C $(notdir $@)
  $(MAKE) -C $(notdir $@) install
  mkdir -p $(dir $@) && touch $@
@@ -483,7 +488,8 @@ stamps/build-gcc-linux-native: $(GCC_SRCDIR) $(GCC_SRC_GIT) stamps/build-gcc-lin
  $(MULTILIB_FLAGS) \
  $(WITH_ABI) \
  $(WITH_ARCH) \
- $(WITH_TUNE)
+ $(WITH_TUNE) \
+ $(WITH_ISA_SPEC) \
  $(MAKE) -C $(notdir $@)
  $(MAKE) -C $(notdir $@) install
  cp -a $(INSTALL_DIR)/$(LINUX_TUPLE)/lib* $(SYSROOT)
@@ -507,7 +513,8 @@ stamps/build-binutils-newlib: $(BINUTILS_SRCDIR) $(BINUTILS_SRC_GIT) stamps/chec
  --disable-gdb \
  --disable-sim \
  --disable-libdecnumber \
- --disable-readline
+ --disable-readline \
+ $(WITH_ISA_SPEC)
  $(MAKE) -C $(notdir $@)
  $(MAKE) -C $(notdir $@) install
  mkdir -p $(dir $@) && touch $@
@@ -560,6 +567,7 @@ stamps/build-gcc-newlib-stage1: $(GCC_SRCDIR) $(GCC_SRC_GIT) stamps/build-binuti
  $(WITH_ABI) \
  $(WITH_ARCH) \
  $(WITH_TUNE) \
+ $(WITH_ISA_SPEC) \
  CFLAGS_FOR_TARGET="-Os $(CFLAGS_FOR_TARGET)" \
  CXXFLAGS_FOR_TARGET="-Os $(CXXFLAGS_FOR_TARGET)"
  $(MAKE) -C $(notdir $@) all-gcc
@@ -659,6 +667,7 @@ stamps/build-gcc-newlib-stage2: $(GCC_SRCDIR) $(GCC_SRC_GIT) stamps/build-newlib
  $(WITH_ABI) \
  $(WITH_ARCH) \
  $(WITH_TUNE) \
+ $(WITH_ISA_SPEC) \
  CFLAGS_FOR_TARGET="-Os $(CFLAGS_FOR_TARGET)" \
  CXXFLAGS_FOR_TARGET="-Os $(CXXFLAGS_FOR_TARGET)"
  $(MAKE) -C $(notdir $@)
@@ -686,7 +695,8 @@ stamps/build-binutils-musl: $(BINUTILS_SRCDIR) $(BINUTILS_SRC_GIT) stamps/check-
  --disable-gdb \
  --disable-sim \
  --disable-libdecnumber \
- --disable-readline
+ --disable-readline \
+ $(WITH_ISA_SPEC)
  $(MAKE) -C $(notdir $@)
  $(MAKE) -C $(notdir $@) install
  mkdir -p $(dir $@) && touch $@
@@ -719,6 +729,7 @@ stamps/build-gcc-musl-stage1: $(GCC_SRCDIR) $(GCC_SRC_GIT) stamps/build-binutils
  $(WITH_ABI) \
  $(WITH_ARCH) \
  $(WITH_TUNE) \
+ $(WITH_ISA_SPEC) \
  CFLAGS_FOR_TARGET="-O2 $(CFLAGS_FOR_TARGET)" \
  CXXFLAGS_FOR_TARGET="-O2 $(CXXFLAGS_FOR_TARGET)"
  $(MAKE) -C $(notdir $@) inhibit-libc=true all-gcc
@@ -786,6 +797,7 @@ stamps/build-gcc-musl-stage2: $(GCC_SRCDIR) $(GCC_SRC_GIT) stamps/build-musl-lin
  $(WITH_ABI) \
  $(WITH_ARCH) \
  $(WITH_TUNE) \
+ $(WITH_ISA_SPEC) \
  CFLAGS_FOR_TARGET="-O2 $(CFLAGS_FOR_TARGET)" \
  CXXFLAGS_FOR_TARGET="-O2 $(CXXFLAGS_FOR_TARGET)"
  $(MAKE) -C $(notdir $@)

README.md

@@ -137,6 +137,17 @@ devtoolset-7 works.
 There are a number of additional options that may be passed to
 configure. See './configure --help' for more details.
 
+#### Set default ISA spec version
+
+`--with-isa-spec=` can specify the default version of the RISC-V Unprivileged
+(formerly User-Level) ISA specification.
+
+Possible options are: `2.2`, `20190608` and `20191213`.
+
+The default version is `2.2`.
+
+More details about this option you can refer this post [RISC-V GNU toolchain bumping default ISA spec to 20191213](https://groups.google.com/a/groups.riscv.org/g/sw-dev/c/aE1ZeHHCYf4).
+
 #### Build with customized multi-lib configure.
 
 `--with-multilib-generator=` can specify what multilibs to build. The argument

configure

@@ -604,6 +604,7 @@ newlib_multilib_names
 glibc_multilib_names
 multilib_flags
 multilib_gen
+WITH_ISA_SPEC
 WITH_TUNE
 WITH_ABI
 WITH_ARCH
@@ -671,6 +672,7 @@ enable_linux
 with_arch
 with_abi
 with_tune
+with_isa_spec
 enable_multilib
 with_multilib_generator
 enable_gcc_checking
@@ -1333,6 +1335,8 @@ Optional Packages:
  --with-arch=rv64imafdc Sets the base RISC-V ISA, defaults to rv64imafdc
  --with-abi=lp64d Sets the base RISC-V ABI, defaults to lp64d
  --with-tune=rocket Set the base RISC-V CPU, defaults to rocket
+ --with-isa-spec=2.2 Set the default ISA spec version, default to 2.2,
+ available options: 2.2, 20190608, 20191213
  --with-multilib-generator
  Multi-libs configuration string, only supported for
  bare-metal/elf toolchaih, this option implied
@@ -3301,6 +3305,16 @@ else
 fi
 
 
+
+# Check whether --with-isa-spec was given.
+if test "${with_isa_spec+set}" = set; then :
+ withval=$with_isa_spec;
+else
+ with_isa_spec=2.2
+
+fi
+
+
 if test "x$with_abi" = xdefault; then :
  case $with_arch in #(
  *rv64g* | *rv64*d*) :
@@ -3329,6 +3343,8 @@ WITH_ABI=--with-abi=$with_abi
 
 WITH_TUNE=--with-tune=$with_tune
 
+WITH_ISA_SPEC=--with-isa-spec=$with_isa_spec
+
 
 # Check whether --enable-multilib was given.
 if test "${enable_multilib+set}" = set; then :

configure.ac

@@ -71,6 +71,13 @@ AC_ARG_WITH(tune,
  [with_tune=rocket]
  )
 
+AC_ARG_WITH(isa-spec,
+ [AS_HELP_STRING([--with-isa-spec=2.2],
+ [Set the default ISA spec version, default to 2.2, available options: 2.2, 20190608, 20191213])],
+ [],
+ [with_isa_spec=2.2]
+ )
+
 AS_IF([test "x$with_abi" = xdefault],
  [AS_CASE([$with_arch],
  [*rv64g* | *rv64*d*], [with_abi=lp64d],
@@ -86,6 +93,7 @@ AS_IF([test "x$with_abi" = xdefault],
 AC_SUBST(WITH_ARCH, --with-arch=$with_arch)
 AC_SUBST(WITH_ABI, --with-abi=$with_abi)
 AC_SUBST(WITH_TUNE, --with-tune=$with_tune)
+AC_SUBST(WITH_ISA_SPEC, --with-isa-spec=$with_isa_spec)
 
 AC_ARG_ENABLE(multilib,
  [AS_HELP_STRING([--enable-multilib],