From 5a2b88b5286aa7fbe4ce14f65ec12c8e9ab69353 Mon Sep 17 00:00:00 2001
From: Liaoshihua <18990054834@163.com>
Date: Mon, 23 May 2022 09:52:08 +0800
Subject: [PATCH] Add option '--with-sim' to set simulator

---
 .gitmodules                                   |  8 +++
 Makefile.in                                   | 34 +++++------
 README.md                                     | 11 +++-
 configure                                     | 59 +++++++++++++++++++
 configure.ac                                  | 10 ++++
 pk                                            |  1 +
 .../spike/riscv64-unknown-linux-gnu-run       |  4 +-
 spike                                         |  1 +
 8 files changed, 106 insertions(+), 22 deletions(-)
 create mode 160000 pk
 create mode 160000 spike

diff --git a/.gitmodules b/.gitmodules
index 229b9718..2204feb6 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -28,3 +28,11 @@
 	path = musl
 	url = git://git.musl-libc.org/musl
 	branch = master
+[submodule "spike"]
+	path = spike
+	url = https://github.com/riscv-software-src/riscv-isa-sim.git
+	branch = master
+[submodule "pk"]
+	path = pk
+	url = https://github.com/riscv-software-src/riscv-pk.git
+	branch = master
diff --git a/Makefile.in b/Makefile.in
index 03fa8329..f908f59e 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -10,12 +10,10 @@ MUSL_SRCDIR := @with_musl_src@
 LINUX_HEADERS_SRCDIR := @with_linux_headers_src@
 GDB_SRCDIR := @with_gdb_src@
 QEMU_SRCDIR := @with_qemu_src@
+SPIKE_SRCDIR := @with_spike_src@
+PK_SRCDIR := @with_pk_src@
 
-SIM:=qemu
-
-# Default branch for proxy kernel and spike
-SPIKE_BRANCH:=master
-PK_BRANCH:=master
+SIM ?= @WITH_SIM@
 
 ifeq ($(srcdir)/riscv-gcc,$(GCC_SRCDIR))
 # We need a relative source dir for the gcc configure, to make msys2 mingw64
@@ -180,7 +178,7 @@ else
 ifeq ($(SIM),spike)
 # Using spike simulator.
 SIM_PATH:=$(srcdir)/scripts/wrapper/spike
-SIM_PREPARE:=PATH="$(SIM_PATH):$(INSTALL_DIR)/bin:$(PATH)" PK_PATH="$(INSTALL_DIR)/$(NEWLIB_TUPLE)/bin/"
+SIM_PREPARE:=PATH="$(SIM_PATH):$(INSTALL_DIR)/bin:$(PATH)" PK_PATH="$(INSTALL_DIR)/$(NEWLIB_TUPLE)/bin/" ARCH_STR="$(WITH_ARCH)"
 SIM_STAMP:= stamps/build-spike
 ifneq (,$(findstring rv32,$(NEWLIB_MULTILIB_NAMES)))
 SIM_STAMP+= stamps/build-pk32
@@ -259,6 +257,12 @@ else
 QEMU_SRC_GIT :=
 endif
 
+ifeq ($(findstring $(srcdir),$(SPIKE_SRCDIR)),$(srcdir))
+SPIKE_SRC_GIT := $(SPIKE_SRCDIR)/.git
+else
+SPIKE_SRC_GIT :=
+endif
+
 ifneq ("$(wildcard $(GCC_SRCDIR)/.git)","")
 GCCPKGVER := g$(shell git -C $(GCC_SRCDIR) describe --always --dirty --exclude '*')
 else
@@ -804,26 +808,20 @@ stamps/build-gcc-musl-stage2: $(GCC_SRCDIR) $(GCC_SRC_GIT) stamps/build-musl-lin
 	cp -a $(INSTALL_DIR)/$(MUSL_TUPLE)/lib* $(SYSROOT)
 	mkdir -p $(dir $@) && touch $@
 
-spike-src:
-	git clone https://github.com/riscv/riscv-isa-sim.git -b $(SPIKE_BRANCH) $@
-
-pk-src:
-	git clone https://github.com/riscv/riscv-pk.git -b $(PK_BRANCH) $@
-
-stamps/build-spike: spike-src
+stamps/build-spike: $(SPIKE_SRCDIR) $(SPIKE_SRC_GIT)
 	rm -rf $@ $(notdir $@)
 	mkdir $(notdir $@)
-	cd $(notdir $@) && ../$</configure \
+	cd $(notdir $@) && $</configure \
 		--prefix=$(INSTALL_DIR)
 	$(MAKE) -C $(notdir $@)
 	$(MAKE) -C $(notdir $@) install
 	mkdir -p $(dir $@)
 	date > $@
 
-stamps/build-pk32: pk-src stamps/build-gcc-newlib-stage2
+stamps/build-pk32: $(PK_SRCDIR) stamps/build-gcc-newlib-stage2
 	rm -rf $@ $(notdir $@)
 	mkdir $(notdir $@)
-	cd $(notdir $@) && ../$</configure \
+	cd $(notdir $@) && $</configure \
 		--prefix=$(INSTALL_DIR) \
 		--host=$(NEWLIB_TUPLE) \
 		--with-arch=rv32gc
@@ -832,10 +830,10 @@ stamps/build-pk32: pk-src stamps/build-gcc-newlib-stage2
 	mkdir -p $(dir $@)
 	date > $@
 
-stamps/build-pk64: pk-src stamps/build-gcc-newlib-stage2
+stamps/build-pk64: $(PK_SRCDIR) stamps/build-gcc-newlib-stage2
 	rm -rf $@ $(notdir $@)
 	mkdir $(notdir $@)
-	cd $(notdir $@) && ../$</configure \
+	cd $(notdir $@) && $</configure \
 		--prefix=$(INSTALL_DIR) \
 		--host=$(NEWLIB_TUPLE) \
 		--with-arch=rv64gc
diff --git a/README.md b/README.md
index c3ae943c..c92eb3f8 100644
--- a/README.md
+++ b/README.md
@@ -189,8 +189,9 @@ rv64imac with lp64 and rv64imafc with lp64 will reuse this multi-lib set.
 The Dejagnu test suite has been ported to RISC-V. This can be run with a
 simulator for the elf and linux toolchains. The simulator can be selected
 by the SIM variable in the Makefile, e.g. SIM=qemu, SIM=gdb, or SIM=spike
-(experimental). However, the testsuite allowlist is only mintained for qemu.
-Other simulators might get extra failures.
+(experimental).In addition, the simulator can also be selected with the 
+configure time option `--with-sim=`.However, the testsuite allowlist is 
+only mintained for qemu.Other simulators might get extra failures.
 To test GCC, run the following commands:
 
     ./configure --prefix=$RISCV --disable-linux --with-arch=rv64ima # or --with-arch=rv32ima
@@ -201,6 +202,10 @@ To test GCC, run the following commands:
     make linux
     make report-linux SIM=qemu # Run with qemu
 
+    ./configure --prefix=$RISCV --with-sim=spike
+    make linux
+    make report               # Run with spike
+
 Note:
 - spike only support rv64* bare-metal/elf toolchain.
 - gdb simulator only support bare-metal/elf toolchain.
@@ -263,3 +268,5 @@ Here is the list of configure option for specify source tree:
     --with-gdb-src
     --with-linux-headers-src
     --with-qemu-src
+    --with-spike-src
+    --with-pk-src
diff --git a/configure b/configure
index 5c18364e..f7d22193 100755
--- a/configure
+++ b/configure
@@ -587,6 +587,8 @@ LIBOBJS
 qemu_targets
 enable_libsanitizer
 with_linux_headers_src
+with_pk_src
+with_spike_src
 with_qemu_src
 with_gdb_src
 with_musl_src
@@ -607,6 +609,7 @@ newlib_multilib_names
 glibc_multilib_names
 multilib_flags
 multilib_gen
+WITH_SIM
 WITH_ISA_SPEC
 WITH_TUNE
 WITH_ABI
@@ -676,6 +679,7 @@ with_arch
 with_abi
 with_tune
 with_isa_spec
+with_sim
 enable_multilib
 with_multilib_generator
 enable_gcc_checking
@@ -693,6 +697,8 @@ with_glibc_src
 with_musl_src
 with_gdb_src
 with_qemu_src
+with_spike_src
+with_pk_src
 with_linux_headers_src
 enable_libsanitizer
 enable_qemu_system
@@ -1344,6 +1350,7 @@ Optional Packages:
   --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-sim=qemu         Sets the base RISC-V Simulator, defaults to qemu
   --with-multilib-generator
                           Multi-libs configuration string, only supported for
                           bare-metal/elf toolchain, this option implied
@@ -1366,6 +1373,8 @@ Optional Packages:
   --with-musl-src         Set musl source path, use builtin source by default
   --with-gdb-src          Set gdb source path, use builtin source by default
   --with-qemu-src         Set qemu source path, use builtin source by default
+  --with-spike-src        Set spike source path, use builtin source by default
+  --with-pk-src           Set pk source path, use builtin source by default
   --with-linux-headers-src
                           Set linux-headers source path, use builtin source by
                           default
@@ -3322,6 +3331,16 @@ else
 fi
 
 
+
+# Check whether --with-sim was given.
+if test "${with_sim+set}" = set; then :
+  withval=$with_sim;
+else
+  with_sim=qemu
+
+fi
+
+
 if test "x$with_abi" = xdefault; then :
   case $with_arch in #(
   *rv64g* | *rv64*d*) :
@@ -3352,6 +3371,8 @@ WITH_TUNE=--with-tune=$with_tune
 
 WITH_ISA_SPEC=--with-isa-spec=$with_isa_spec
 
+WITH_SIM=$with_sim
+
 
 # Check whether --enable-multilib was given.
 if test "${enable_multilib+set}" = set; then :
@@ -3667,6 +3688,44 @@ fi
 else
   with_qemu_src="\$(srcdir)/qemu"
 
+fi
+
+	}
+{
+
+# Check whether --with-spike-src was given.
+if test "${with_spike_src+set}" = set; then :
+  withval=$with_spike_src;
+else
+  with_spike_src=default
+
+fi
+
+	  if test "x$with_spike_src" != xdefault; then :
+  with_spike_src=$with_spike_src
+
+else
+  with_spike_src="\$(srcdir)/spike"
+
+fi
+
+	}
+{
+
+# Check whether --with-pk-src was given.
+if test "${with_pk_src+set}" = set; then :
+  withval=$with_pk_src;
+else
+  with_pk_src=default
+
+fi
+
+	  if test "x$with_pk_src" != xdefault; then :
+  with_pk_src=$with_pk_src
+
+else
+  with_pk_src="\$(srcdir)/pk"
+
 fi
 
 	}
diff --git a/configure.ac b/configure.ac
index 690df306..9c0d60d6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -78,6 +78,13 @@ AC_ARG_WITH(isa-spec,
 	[with_isa_spec=2.2]
 	)
 
+AC_ARG_WITH(sim,
+	[AS_HELP_STRING([--with-sim=qemu],
+		[Sets the base RISC-V Simulator, defaults to qemu])],
+	[],
+	[with_sim=qemu]
+	)
+
 AS_IF([test "x$with_abi" = xdefault],
 	[AS_CASE([$with_arch],
 		[*rv64g* | *rv64*d*], [with_abi=lp64d],
@@ -94,6 +101,7 @@ 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_SUBST(WITH_SIM, $with_sim)
 
 AC_ARG_ENABLE(multilib,
 	[AS_HELP_STRING([--enable-multilib],
@@ -234,6 +242,8 @@ AX_ARG_WITH_SRC(glibc, glibc)
 AX_ARG_WITH_SRC(musl, musl)
 AX_ARG_WITH_SRC(gdb, riscv-gdb)
 AX_ARG_WITH_SRC(qemu, qemu)
+AX_ARG_WITH_SRC(spike, spike)
+AX_ARG_WITH_SRC(pk, pk)
 
 AC_ARG_WITH(linux-headers-src,
 	[AC_HELP_STRING([--with-linux-headers-src],
diff --git a/pk b/pk
new file mode 160000
index 00000000..2efabd3e
--- /dev/null
+++ b/pk
@@ -0,0 +1 @@
+Subproject commit 2efabd3e6604b8a9e8f70baf52f57696680c7855
diff --git a/scripts/wrapper/spike/riscv64-unknown-linux-gnu-run b/scripts/wrapper/spike/riscv64-unknown-linux-gnu-run
index 14a5b00a..6f5ba837 100755
--- a/scripts/wrapper/spike/riscv64-unknown-linux-gnu-run
+++ b/scripts/wrapper/spike/riscv64-unknown-linux-gnu-run
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 xlen="$(readelf -h $1 | grep 'Class' | cut -d: -f 2 | xargs echo | sed 's/^ELF//')"
-
+arch="${ARCH_STR#*=}"
 spike \
-    --isa=RV${xlen}GC \
+    --isa=${arch} \
     ${PK_PATH}/pk${xlen} "$@"
diff --git a/spike b/spike
new file mode 160000
index 00000000..a0298a33
--- /dev/null
+++ b/spike
@@ -0,0 +1 @@
+Subproject commit a0298a33e7b2091ba8d9f3a20838d96dc1164cac