# Add subproject to our running list
- subprojects="$subprojects spike"
+ subprojects="$subprojects spike_main"
# Process the subproject appropriately. If enabled add it to the
# $enabled_subprojects running shell variable, set a
# 'subproject.ac'.
- { $as_echo "$as_me:${as_lineno-$LINENO}: configuring default subproject : spike" >&5
-$as_echo "$as_me: configuring default subproject : spike" >&6;}
- ac_config_files="$ac_config_files spike.mk:spike/spike.mk.in"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: configuring default subproject : spike_main" >&5
+$as_echo "$as_me: configuring default subproject : spike_main" >&6;}
+ ac_config_files="$ac_config_files spike_main.mk:spike_main/spike_main.mk.in"
- enable_spike_sproj="yes"
- subprojects_enabled="$subprojects_enabled spike"
+ enable_spike_main_sproj="yes"
+ subprojects_enabled="$subprojects_enabled spike_main"
-$as_echo "#define SPIKE_ENABLED /**/" >>confdefs.h
+$as_echo "#define SPIKE_MAIN_ENABLED /**/" >>confdefs.h
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
$as_echo_n "checking for dlopen in -ldl... " >&6; }
"hwacha.mk") CONFIG_FILES="$CONFIG_FILES hwacha.mk:hwacha/hwacha.mk.in" ;;
"dummy_rocc.mk") CONFIG_FILES="$CONFIG_FILES dummy_rocc.mk:dummy_rocc/dummy_rocc.mk.in" ;;
"softfloat.mk") CONFIG_FILES="$CONFIG_FILES softfloat.mk:softfloat/softfloat.mk.in" ;;
- "spike.mk") CONFIG_FILES="$CONFIG_FILES spike.mk:spike/spike.mk.in" ;;
+ "spike_main.mk") CONFIG_FILES="$CONFIG_FILES spike_main.mk:spike_main/spike_main.mk.in" ;;
"config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
"Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
# The '*' suffix indicates an optional subproject. The '**' suffix
# indicates an optional subproject which is also the name of a group.
-MCPPBS_SUBPROJECTS([ riscv, hwacha, dummy_rocc, softfloat, spike ])
+MCPPBS_SUBPROJECTS([ riscv, hwacha, dummy_rocc, softfloat, spike_main ])
#-------------------------------------------------------------------------
# MCPPBS subproject groups
dummy_rocc_subproject_deps = \
- spike \
+ spike_main \
riscv \
softfloat \
hwacha_subproject_deps = \
- spike \
+ spike_main \
riscv \
softfloat \
+++ /dev/null
-// See LICENSE for license details.
-
-#include "disasm.h"
-#include <string>
-#include <vector>
-#include <cstdarg>
-#include <sstream>
-#include <stdlib.h>
-
-
-struct : public arg_t {
- std::string to_string(insn_t insn) const {
- return std::to_string((int)insn.i_imm()) + '(' + xpr_name[insn.rs1()] + ')';
- }
-} load_address;
-
-struct : public arg_t {
- std::string to_string(insn_t insn) const {
- return std::to_string((int)insn.s_imm()) + '(' + xpr_name[insn.rs1()] + ')';
- }
-} store_address;
-
-struct : public arg_t {
- std::string to_string(insn_t insn) const {
- return std::string("0(") + xpr_name[insn.rs1()] + ')';
- }
-} amo_address;
-
-struct : public arg_t {
- std::string to_string(insn_t insn) const {
- return xpr_name[insn.rd()];
- }
-} xrd;
-
-struct : public arg_t {
- std::string to_string(insn_t insn) const {
- return xpr_name[insn.rs1()];
- }
-} xrs1;
-
-struct : public arg_t {
- std::string to_string(insn_t insn) const {
- return xpr_name[insn.rs2()];
- }
-} xrs2;
-
-struct : public arg_t {
- std::string to_string(insn_t insn) const {
- return fpr_name[insn.rd()];
- }
-} frd;
-
-struct : public arg_t {
- std::string to_string(insn_t insn) const {
- return fpr_name[insn.rs1()];
- }
-} frs1;
-
-struct : public arg_t {
- std::string to_string(insn_t insn) const {
- return fpr_name[insn.rs2()];
- }
-} frs2;
-
-struct : public arg_t {
- std::string to_string(insn_t insn) const {
- return fpr_name[insn.rs3()];
- }
-} frs3;
-
-struct : public arg_t {
- std::string to_string(insn_t insn) const {
- switch (insn.csr())
- {
- #define DECLARE_CSR(name, num) case num: return #name;
- #include "encoding.h"
- #undef DECLARE_CSR
- default: return "unknown";
- }
- }
-} csr;
-
-struct : public arg_t {
- std::string to_string(insn_t insn) const {
- return std::to_string((int)insn.i_imm());
- }
-} imm;
-
-struct : public arg_t {
- std::string to_string(insn_t insn) const {
- std::stringstream s;
- s << std::hex << "0x" << ((uint32_t)insn.u_imm() >> 12);
- return s.str();
- }
-} bigimm;
-
-struct : public arg_t {
- std::string to_string(insn_t insn) const {
- return std::to_string(insn.rs1());
- }
-} zimm5;
-
-struct : public arg_t {
- std::string to_string(insn_t insn) const {
- std::stringstream s;
- int32_t target = insn.sb_imm();
- char sign = target >= 0 ? '+' : '-';
- s << "pc " << sign << ' ' << abs(target);
- return s.str();
- }
-} branch_target;
-
-struct : public arg_t {
- std::string to_string(insn_t insn) const {
- std::stringstream s;
- int32_t target = insn.uj_imm();
- char sign = target >= 0 ? '+' : '-';
- s << "pc " << sign << std::hex << " 0x" << abs(target);
- return s.str();
- }
-} jump_target;
-
-std::string disassembler_t::disassemble(insn_t insn)
-{
- const disasm_insn_t* disasm_insn = lookup(insn);
- return disasm_insn ? disasm_insn->to_string(insn) : "unknown";
-}
-
-disassembler_t::disassembler_t()
-{
- const uint32_t mask_rd = 0x1fUL << 7;
- const uint32_t match_rd_ra = 1UL << 7;
- const uint32_t mask_rs1 = 0x1fUL << 15;
- const uint32_t match_rs1_ra = 1UL << 15;
- const uint32_t mask_rs2 = 0x1fUL << 20;
- const uint32_t mask_imm = 0xfffUL << 20;
-
- #define DECLARE_INSN(code, match, mask) \
- const uint32_t match_##code = match; \
- const uint32_t mask_##code = mask;
- #include "encoding.h"
- #undef DECLARE_INSN
-
- // explicit per-instruction disassembly
- #define DISASM_INSN(name, code, extra, ...) \
- add_insn(new disasm_insn_t(name, match_##code, mask_##code | (extra), __VA_ARGS__));
- #define DEFINE_NOARG(code) \
- add_insn(new disasm_insn_t(#code, match_##code, mask_##code, {}));
- #define DEFINE_RTYPE(code) DISASM_INSN(#code, code, 0, {&xrd, &xrs1, &xrs2})
- #define DEFINE_ITYPE(code) DISASM_INSN(#code, code, 0, {&xrd, &xrs1, &imm})
- #define DEFINE_I0TYPE(name, code) DISASM_INSN(name, code, mask_rs1, {&xrd, &imm})
- #define DEFINE_I1TYPE(name, code) DISASM_INSN(name, code, mask_imm, {&xrd, &xrs1})
- #define DEFINE_I2TYPE(name, code) DISASM_INSN(name, code, mask_rd | mask_imm, {&xrs1})
- #define DEFINE_LTYPE(code) DISASM_INSN(#code, code, 0, {&xrd, &bigimm})
- #define DEFINE_BTYPE(code) DISASM_INSN(#code, code, 0, {&xrs1, &xrs2, &branch_target})
- #define DEFINE_B0TYPE(name, code) DISASM_INSN(name, code, mask_rs1 | mask_rs2, {&branch_target})
- #define DEFINE_B1TYPE(name, code) DISASM_INSN(name, code, mask_rs2, {&xrs1, &branch_target})
- #define DEFINE_XLOAD(code) DISASM_INSN(#code, code, 0, {&xrd, &load_address})
- #define DEFINE_XSTORE(code) DISASM_INSN(#code, code, 0, {&xrs2, &store_address})
- #define DEFINE_XAMO(code) DISASM_INSN(#code, code, 0, {&xrd, &xrs2, &amo_address})
- #define DEFINE_FLOAD(code) DISASM_INSN(#code, code, 0, {&frd, &load_address})
- #define DEFINE_FSTORE(code) DISASM_INSN(#code, code, 0, {&frs2, &store_address})
- #define DEFINE_FRTYPE(code) DISASM_INSN(#code, code, 0, {&frd, &frs1, &frs2})
- #define DEFINE_FR1TYPE(code) DISASM_INSN(#code, code, 0, {&frd, &frs1})
- #define DEFINE_FR3TYPE(code) DISASM_INSN(#code, code, 0, {&frd, &frs1, &frs2, &frs3})
- #define DEFINE_FXTYPE(code) DISASM_INSN(#code, code, 0, {&xrd, &frs1})
- #define DEFINE_XFTYPE(code) DISASM_INSN(#code, code, 0, {&frd, &xrs1})
-
- DEFINE_XLOAD(lb)
- DEFINE_XLOAD(lbu)
- DEFINE_XLOAD(lh)
- DEFINE_XLOAD(lhu)
- DEFINE_XLOAD(lw)
- DEFINE_XLOAD(lwu)
- DEFINE_XLOAD(ld)
-
- DEFINE_XSTORE(sb)
- DEFINE_XSTORE(sh)
- DEFINE_XSTORE(sw)
- DEFINE_XSTORE(sd)
-
- DEFINE_XAMO(amoadd_w)
- DEFINE_XAMO(amoswap_w)
- DEFINE_XAMO(amoand_w)
- DEFINE_XAMO(amoor_w)
- DEFINE_XAMO(amoxor_w)
- DEFINE_XAMO(amomin_w)
- DEFINE_XAMO(amomax_w)
- DEFINE_XAMO(amominu_w)
- DEFINE_XAMO(amomaxu_w)
- DEFINE_XAMO(amoadd_d)
- DEFINE_XAMO(amoswap_d)
- DEFINE_XAMO(amoand_d)
- DEFINE_XAMO(amoor_d)
- DEFINE_XAMO(amoxor_d)
- DEFINE_XAMO(amomin_d)
- DEFINE_XAMO(amomax_d)
- DEFINE_XAMO(amominu_d)
- DEFINE_XAMO(amomaxu_d)
-
- DEFINE_XAMO(lr_w)
- DEFINE_XAMO(sc_w)
- DEFINE_XAMO(lr_d)
- DEFINE_XAMO(sc_d)
-
- DEFINE_FLOAD(flw)
- DEFINE_FLOAD(fld)
-
- DEFINE_FSTORE(fsw)
- DEFINE_FSTORE(fsd)
-
- add_insn(new disasm_insn_t("j", match_jal, mask_jal | mask_rd, {&jump_target}));
- add_insn(new disasm_insn_t("jal", match_jal | match_rd_ra, mask_jal | mask_rd, {&jump_target}));
- add_insn(new disasm_insn_t("jal", match_jal, mask_jal, {&xrd, &jump_target}));
-
- DEFINE_B0TYPE("b", beq);
- DEFINE_B1TYPE("beqz", beq);
- DEFINE_B1TYPE("bnez", bne);
- DEFINE_B1TYPE("bltz", blt);
- DEFINE_B1TYPE("bgez", bge);
- DEFINE_BTYPE(beq)
- DEFINE_BTYPE(bne)
- DEFINE_BTYPE(blt)
- DEFINE_BTYPE(bge)
- DEFINE_BTYPE(bltu)
- DEFINE_BTYPE(bgeu)
-
- DEFINE_LTYPE(lui);
- DEFINE_LTYPE(auipc);
-
- DEFINE_I2TYPE("jr", jalr);
- add_insn(new disasm_insn_t("jalr", match_jalr | match_rd_ra, mask_jalr | mask_rd | mask_imm, {&xrs1}));
- add_insn(new disasm_insn_t("ret", match_jalr | match_rs1_ra, mask_jalr | mask_rd | mask_rs1 | mask_imm, {}));
- DEFINE_ITYPE(jalr);
-
- add_insn(new disasm_insn_t("nop", match_addi, mask_addi | mask_rd | mask_rs1 | mask_imm, {}));
- add_insn(new disasm_insn_t(" - ", match_xor, mask_xor | mask_rd | mask_rs1 | mask_rs2, {})); // for machine-generated bubbles
- DEFINE_I0TYPE("li", addi);
- DEFINE_I1TYPE("move", addi);
- DEFINE_ITYPE(addi);
- DEFINE_ITYPE(slli);
- DEFINE_ITYPE(slti);
- DEFINE_ITYPE(sltiu);
- DEFINE_ITYPE(xori);
- DEFINE_ITYPE(srli);
- DEFINE_ITYPE(srai);
- DEFINE_ITYPE(ori);
- DEFINE_ITYPE(andi);
- DEFINE_ITYPE(addiw);
- DEFINE_ITYPE(slliw);
- DEFINE_ITYPE(srliw);
- DEFINE_ITYPE(sraiw);
-
- DEFINE_RTYPE(add);
- DEFINE_RTYPE(sub);
- DEFINE_RTYPE(sll);
- DEFINE_RTYPE(slt);
- DEFINE_RTYPE(sltu);
- DEFINE_RTYPE(xor);
- DEFINE_RTYPE(srl);
- DEFINE_RTYPE(sra);
- DEFINE_RTYPE(or);
- DEFINE_RTYPE(and);
- DEFINE_RTYPE(mul);
- DEFINE_RTYPE(mulh);
- DEFINE_RTYPE(mulhu);
- DEFINE_RTYPE(mulhsu);
- DEFINE_RTYPE(div);
- DEFINE_RTYPE(divu);
- DEFINE_RTYPE(rem);
- DEFINE_RTYPE(remu);
- DEFINE_RTYPE(addw);
- DEFINE_RTYPE(subw);
- DEFINE_RTYPE(sllw);
- DEFINE_RTYPE(srlw);
- DEFINE_RTYPE(sraw);
- DEFINE_RTYPE(mulw);
- DEFINE_RTYPE(divw);
- DEFINE_RTYPE(divuw);
- DEFINE_RTYPE(remw);
- DEFINE_RTYPE(remuw);
-
- DEFINE_NOARG(scall);
- DEFINE_NOARG(sbreak);
- DEFINE_NOARG(fence);
- DEFINE_NOARG(fence_i);
-
- add_insn(new disasm_insn_t("csrr", match_csrrs, mask_csrrs | mask_rs1, {&xrd, &csr}));
- add_insn(new disasm_insn_t("csrw", match_csrrw, mask_csrrw | mask_rd, {&csr, &xrs1}));
- add_insn(new disasm_insn_t("csrrw", match_csrrw, mask_csrrw, {&xrd, &csr, &xrs1}));
- add_insn(new disasm_insn_t("csrrs", match_csrrs, mask_csrrs, {&xrd, &csr, &xrs1}));
- add_insn(new disasm_insn_t("csrrc", match_csrrc, mask_csrrc, {&xrd, &csr, &xrs1}));
- add_insn(new disasm_insn_t("csrrwi", match_csrrwi, mask_csrrwi, {&xrd, &csr, &zimm5}));
- add_insn(new disasm_insn_t("csrrsi", match_csrrsi, mask_csrrsi, {&xrd, &csr, &zimm5}));
- add_insn(new disasm_insn_t("csrrci", match_csrrci, mask_csrrci, {&xrd, &csr, &zimm5}));
- DEFINE_NOARG(sret)
-
- DEFINE_FRTYPE(fadd_s);
- DEFINE_FRTYPE(fsub_s);
- DEFINE_FRTYPE(fmul_s);
- DEFINE_FRTYPE(fdiv_s);
- DEFINE_FR1TYPE(fsqrt_s);
- DEFINE_FRTYPE(fmin_s);
- DEFINE_FRTYPE(fmax_s);
- DEFINE_FR3TYPE(fmadd_s);
- DEFINE_FR3TYPE(fmsub_s);
- DEFINE_FR3TYPE(fnmadd_s);
- DEFINE_FR3TYPE(fnmsub_s);
- DEFINE_FRTYPE(fsgnj_s);
- DEFINE_FRTYPE(fsgnjn_s);
- DEFINE_FRTYPE(fsgnjx_s);
- DEFINE_FR1TYPE(fcvt_s_d);
- DEFINE_XFTYPE(fcvt_s_l);
- DEFINE_XFTYPE(fcvt_s_lu);
- DEFINE_XFTYPE(fcvt_s_w);
- DEFINE_XFTYPE(fcvt_s_wu);
- DEFINE_XFTYPE(fcvt_s_wu);
- DEFINE_XFTYPE(fmv_s_x);
- DEFINE_FXTYPE(fcvt_l_s);
- DEFINE_FXTYPE(fcvt_lu_s);
- DEFINE_FXTYPE(fcvt_w_s);
- DEFINE_FXTYPE(fcvt_wu_s);
- DEFINE_FXTYPE(fclass_s);
- DEFINE_FXTYPE(fmv_x_s);
- DEFINE_FXTYPE(feq_s);
- DEFINE_FXTYPE(flt_s);
- DEFINE_FXTYPE(fle_s);
-
- DEFINE_FRTYPE(fadd_d);
- DEFINE_FRTYPE(fsub_d);
- DEFINE_FRTYPE(fmul_d);
- DEFINE_FRTYPE(fdiv_d);
- DEFINE_FR1TYPE(fsqrt_d);
- DEFINE_FRTYPE(fmin_d);
- DEFINE_FRTYPE(fmax_d);
- DEFINE_FR3TYPE(fmadd_d);
- DEFINE_FR3TYPE(fmsub_d);
- DEFINE_FR3TYPE(fnmadd_d);
- DEFINE_FR3TYPE(fnmsub_d);
- DEFINE_FRTYPE(fsgnj_d);
- DEFINE_FRTYPE(fsgnjn_d);
- DEFINE_FRTYPE(fsgnjx_d);
- DEFINE_FR1TYPE(fcvt_d_s);
- DEFINE_XFTYPE(fcvt_d_l);
- DEFINE_XFTYPE(fcvt_d_lu);
- DEFINE_XFTYPE(fcvt_d_w);
- DEFINE_XFTYPE(fcvt_d_wu);
- DEFINE_XFTYPE(fcvt_d_wu);
- DEFINE_XFTYPE(fmv_d_x);
- DEFINE_FXTYPE(fcvt_l_d);
- DEFINE_FXTYPE(fcvt_lu_d);
- DEFINE_FXTYPE(fcvt_w_d);
- DEFINE_FXTYPE(fcvt_wu_d);
- DEFINE_FXTYPE(fclass_d);
- DEFINE_FXTYPE(fmv_x_d);
- DEFINE_FXTYPE(feq_d);
- DEFINE_FXTYPE(flt_d);
- DEFINE_FXTYPE(fle_d);
-
- // provide a default disassembly for all instructions as a fallback
- #define DECLARE_INSN(code, match, mask) \
- add_insn(new disasm_insn_t(#code " (args unknown)", match, mask, {}));
- #include "encoding.h"
- #undef DECLARE_INSN
-}
-
-const disasm_insn_t* disassembler_t::lookup(insn_t insn)
-{
- size_t idx = insn.bits() % HASH_SIZE;
- for (size_t j = 0; j < chain[idx].size(); j++)
- if(*chain[idx][j] == insn)
- return chain[idx][j];
-
- idx = HASH_SIZE;
- for (size_t j = 0; j < chain[idx].size(); j++)
- if(*chain[idx][j] == insn)
- return chain[idx][j];
-
- return NULL;
-}
-
-void disassembler_t::add_insn(disasm_insn_t* insn)
-{
- size_t idx = HASH_SIZE;
- if (insn->get_mask() % HASH_SIZE == HASH_SIZE - 1)
- idx = insn->get_match() % HASH_SIZE;
- chain[idx].push_back(insn);
-}
-
-disassembler_t::~disassembler_t()
-{
- for (size_t i = 0; i < HASH_SIZE+1; i++)
- for (size_t j = 0; j < chain[i].size(); j++)
- delete chain[i][j];
-}
+++ /dev/null
-#include "extension.h"
-#include <string>
-#include <map>
-#include <dlfcn.h>
-
-static std::map<std::string, std::function<extension_t*()>>& extensions()
-{
- static std::map<std::string, std::function<extension_t*()>> v;
- return v;
-}
-
-void register_extension(const char* name, std::function<extension_t*()> f)
-{
- extensions()[name] = f;
-}
-
-std::function<extension_t*()> find_extension(const char* name)
-{
- if (!extensions().count(name)) {
- // try to find extension xyz by loading libxyz.so
- std::string libname = std::string("lib") + name + ".so";
- if (!dlopen(libname.c_str(), RTLD_LAZY)) {
- fprintf(stderr, "couldn't find extension '%s' (or library '%s')\n",
- name, libname.c_str());
- exit(-1);
- }
- if (!extensions().count(name)) {
- fprintf(stderr, "couldn't find extension '%s' in shared library '%s'\n",
- name, libname.c_str());
- exit(-1);
- }
- }
-
- return extensions()[name];
-}
+++ /dev/null
-// See LICENSE for license details.
-
-// This little program finds occurrences of strings like
-// DASM(ffabc013)
-// in its input, then replaces them with the disassembly
-// enclosed hexadecimal number, interpreted as a RISC-V
-// instruction.
-
-#include "disasm.h"
-#include "extension.h"
-#include <iostream>
-#include <string>
-#include <cstdint>
-#include <fesvr/option_parser.h>
-using namespace std;
-
-int main(int argc, char** argv)
-{
- string s;
- disassembler_t d;
-
- std::function<extension_t*()> extension;
- option_parser_t parser;
- parser.option(0, "extension", 1, [&](const char* s){extension = find_extension(s);});
-
- while (getline(cin, s))
- {
- for (size_t start = 0; (start = s.find("DASM(", start)) != string::npos; )
- {
- size_t end = s.find(')', start);
- if (end == string::npos)
- break;
-
- size_t numstart = start + strlen("DASM(");
- insn_bits_t bits = strtoull(&s[numstart], NULL, 16);
- string dis = d.disassemble(bits);
- s = s.substr(0, start) + dis + s.substr(end+1);
- start += dis.length();
- }
-
- cout << s << '\n';
- }
-
- return 0;
-}
+++ /dev/null
-AC_CHECK_LIB(dl, dlopen, [], [AC_MSG_ERROR([libdl is required])])
+++ /dev/null
-// See LICENSE for license details.
-
-#include "sim.h"
-#include "htif.h"
-#include "cachesim.h"
-#include "extension.h"
-#include <dlfcn.h>
-#include <fesvr/option_parser.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <getopt.h>
-#include <vector>
-#include <string>
-#include <memory>
-
-static void help()
-{
- fprintf(stderr, "usage: spike [host options] <target program> [target options]\n");
- fprintf(stderr, "Host Options:\n");
- fprintf(stderr, " -p <n> Simulate <n> processors\n");
- fprintf(stderr, " -m <n> Provide <n> MB of target memory\n");
- fprintf(stderr, " -d Interactive debug mode\n");
- fprintf(stderr, " -g Track histogram of PCs\n");
- fprintf(stderr, " -h Print this help message\n");
- fprintf(stderr, " --ic=<S>:<W>:<B> Instantiate a cache model with S sets,\n");
- fprintf(stderr, " --dc=<S>:<W>:<B> W ways, and B-byte blocks (with S and\n");
- fprintf(stderr, " --l2=<S>:<W>:<B> B both powers of 2).\n");
- fprintf(stderr, " --extension=<name> Specify RoCC Extension\n");
- fprintf(stderr, " --extlib=<name> Shared library to load\n");
- exit(1);
-}
-
-int main(int argc, char** argv)
-{
- bool debug = false;
- bool histogram = false;
- size_t nprocs = 1;
- size_t mem_mb = 0;
- std::unique_ptr<icache_sim_t> ic;
- std::unique_ptr<dcache_sim_t> dc;
- std::unique_ptr<cache_sim_t> l2;
- std::function<extension_t*()> extension;
-
- option_parser_t parser;
- parser.help(&help);
- parser.option('h', 0, 0, [&](const char* s){help();});
- parser.option('d', 0, 0, [&](const char* s){debug = true;});
- parser.option('g', 0, 0, [&](const char* s){histogram = true;});
- parser.option('p', 0, 1, [&](const char* s){nprocs = atoi(s);});
- parser.option('m', 0, 1, [&](const char* s){mem_mb = atoi(s);});
- parser.option(0, "ic", 1, [&](const char* s){ic.reset(new icache_sim_t(s));});
- parser.option(0, "dc", 1, [&](const char* s){dc.reset(new dcache_sim_t(s));});
- parser.option(0, "l2", 1, [&](const char* s){l2.reset(cache_sim_t::construct(s, "L2$"));});
- parser.option(0, "extension", 1, [&](const char* s){extension = find_extension(s);});
- parser.option(0, "extlib", 1, [&](const char *s){
- void *lib = dlopen(s, RTLD_NOW | RTLD_GLOBAL);
- if (lib == NULL) {
- fprintf(stderr, "Unable to load extlib '%s': %s\n", s, dlerror());
- exit(-1);
- }
- });
-
- auto argv1 = parser.parse(argv);
- if (!*argv1)
- help();
- std::vector<std::string> htif_args(argv1, (const char*const*)argv + argc);
- sim_t s(nprocs, mem_mb, htif_args);
-
- if (ic && l2) ic->set_miss_handler(&*l2);
- if (dc && l2) dc->set_miss_handler(&*l2);
- for (size_t i = 0; i < nprocs; i++)
- {
- if (ic) s.get_core(i)->get_mmu()->register_memtracer(&*ic);
- if (dc) s.get_core(i)->get_mmu()->register_memtracer(&*dc);
- if (extension) s.get_core(i)->register_extension(extension());
- }
-
- s.set_debug(debug);
- s.set_histogram(histogram);
- return s.run();
-}
+++ /dev/null
-spike_subproject_deps = \
- softfloat \
- riscv \
-
-spike_install_prog_srcs = \
- spike.cc \
- riscv-dis.cc \
- xspike.cc \
- termios-xspike.cc \
-
-spike_hdrs = \
-
-spike_srcs = \
- extensions.cc \
+++ /dev/null
-// See LICENSE for license details.
-
-// termios-xspike sets up a canonical terminal and blocks forever.
-// It allows us to send Ctrl-C etc. to the target machine.
-
-#include <unistd.h>
-#include <termios.h>
-#include <signal.h>
-#include <assert.h>
-#include <stdlib.h>
-#include <stdio.h>
-
-int main()
-{
- struct termios old_tios;
- if (tcgetattr(0, &old_tios) < 0)
- return -1;
-
- signal(SIGTERM, [](int) { });
-
- struct termios new_tios = old_tios;
- new_tios.c_lflag &= ~(ICANON | ECHO | ISIG);
- if (tcsetattr(0, TCSANOW, &new_tios) < 0)
- return -1;
-
- pause();
-
- return tcsetattr(0, TCSANOW, &old_tios);
-}
+++ /dev/null
-// See LICENSE for license details.
-
-// xspike forks an xterm for spike's target machine console,
-// preserving the current terminal for debugging.
-
-#include <unistd.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <sys/wait.h>
-#include <cstdio>
-#include <climits>
-#include <cstring>
-#include <stdexcept>
-
-static pid_t fork_spike(int tty_fd, int argc, char** argv);
-static pid_t fork_xterm(int* tty_fd);
-
-int main(int argc, char** argv)
-{
- int tty_fd, wait_status, ret = -1;
- pid_t xterm, spike;
-
- static bool signal_exit = false;
- auto handle_signal = [](int) { signal_exit = true; };
-
- if ((xterm = fork_xterm(&tty_fd)) < 0)
- {
- fprintf(stderr, "could not open xterm\n");
- goto out;
- }
-
- signal(SIGINT, handle_signal);
-
- if ((spike = fork_spike(tty_fd, argc, argv)) < 0)
- {
- fprintf(stderr, "could not open spike\n");
- goto close_xterm;
- }
-
- while ((ret = waitpid(spike, &wait_status, 0)) < 0)
- if (signal_exit)
- break;
-
- if (ret < 0) // signal_exit
- kill(spike, SIGTERM);
- else
- ret = WIFEXITED(wait_status) ? WEXITSTATUS(wait_status) : -1;
-
-close_xterm:
- kill(-xterm, SIGTERM);
-out:
- return ret;
-}
-
-static pid_t fork_spike(int tty_fd, int argc, char** argv)
-{
- pid_t pid = fork();
- if (pid < 0)
- return -1;
-
- if (pid == 0)
- {
- if (dup2(tty_fd, STDIN_FILENO) < 0 || dup2(tty_fd, STDOUT_FILENO) < 0)
- return -1;
- execvp("spike", argv);
- return -1;
- }
-
- return pid;
-}
-
-static pid_t fork_xterm(int* tty_fd)
-{
- static const char cmd[] = "3>&1 xterm -title xspike -e sh -c 'tty 1>&3; termios-xspike'";
-
- int fds[2];
- if (pipe(fds) < 0)
- return -1;
-
- pid_t pid = fork();
- if (pid < 0)
- return -1;
-
- if (pid == 0)
- {
- setpgid(0, 0);
- if (dup2(fds[1], STDOUT_FILENO) < 0)
- return -1;
- execl("/bin/sh", "sh", "-c", cmd, NULL);
- return -1;
- }
-
- char tty[NAME_MAX];
- ssize_t ttylen = read(fds[0], tty, sizeof(tty));
- if (ttylen <= 1 || tty[ttylen-1] != '\n')
- return -1;
- tty[ttylen-1] = '\0';
- if ((*tty_fd = open(tty, O_RDWR)) < 0)
- return -1;
-
- return pid;
-}
--- /dev/null
+// See LICENSE for license details.
+
+#include "disasm.h"
+#include <string>
+#include <vector>
+#include <cstdarg>
+#include <sstream>
+#include <stdlib.h>
+
+
+struct : public arg_t {
+ std::string to_string(insn_t insn) const {
+ return std::to_string((int)insn.i_imm()) + '(' + xpr_name[insn.rs1()] + ')';
+ }
+} load_address;
+
+struct : public arg_t {
+ std::string to_string(insn_t insn) const {
+ return std::to_string((int)insn.s_imm()) + '(' + xpr_name[insn.rs1()] + ')';
+ }
+} store_address;
+
+struct : public arg_t {
+ std::string to_string(insn_t insn) const {
+ return std::string("0(") + xpr_name[insn.rs1()] + ')';
+ }
+} amo_address;
+
+struct : public arg_t {
+ std::string to_string(insn_t insn) const {
+ return xpr_name[insn.rd()];
+ }
+} xrd;
+
+struct : public arg_t {
+ std::string to_string(insn_t insn) const {
+ return xpr_name[insn.rs1()];
+ }
+} xrs1;
+
+struct : public arg_t {
+ std::string to_string(insn_t insn) const {
+ return xpr_name[insn.rs2()];
+ }
+} xrs2;
+
+struct : public arg_t {
+ std::string to_string(insn_t insn) const {
+ return fpr_name[insn.rd()];
+ }
+} frd;
+
+struct : public arg_t {
+ std::string to_string(insn_t insn) const {
+ return fpr_name[insn.rs1()];
+ }
+} frs1;
+
+struct : public arg_t {
+ std::string to_string(insn_t insn) const {
+ return fpr_name[insn.rs2()];
+ }
+} frs2;
+
+struct : public arg_t {
+ std::string to_string(insn_t insn) const {
+ return fpr_name[insn.rs3()];
+ }
+} frs3;
+
+struct : public arg_t {
+ std::string to_string(insn_t insn) const {
+ switch (insn.csr())
+ {
+ #define DECLARE_CSR(name, num) case num: return #name;
+ #include "encoding.h"
+ #undef DECLARE_CSR
+ default: return "unknown";
+ }
+ }
+} csr;
+
+struct : public arg_t {
+ std::string to_string(insn_t insn) const {
+ return std::to_string((int)insn.i_imm());
+ }
+} imm;
+
+struct : public arg_t {
+ std::string to_string(insn_t insn) const {
+ std::stringstream s;
+ s << std::hex << "0x" << ((uint32_t)insn.u_imm() >> 12);
+ return s.str();
+ }
+} bigimm;
+
+struct : public arg_t {
+ std::string to_string(insn_t insn) const {
+ return std::to_string(insn.rs1());
+ }
+} zimm5;
+
+struct : public arg_t {
+ std::string to_string(insn_t insn) const {
+ std::stringstream s;
+ int32_t target = insn.sb_imm();
+ char sign = target >= 0 ? '+' : '-';
+ s << "pc " << sign << ' ' << abs(target);
+ return s.str();
+ }
+} branch_target;
+
+struct : public arg_t {
+ std::string to_string(insn_t insn) const {
+ std::stringstream s;
+ int32_t target = insn.uj_imm();
+ char sign = target >= 0 ? '+' : '-';
+ s << "pc " << sign << std::hex << " 0x" << abs(target);
+ return s.str();
+ }
+} jump_target;
+
+std::string disassembler_t::disassemble(insn_t insn)
+{
+ const disasm_insn_t* disasm_insn = lookup(insn);
+ return disasm_insn ? disasm_insn->to_string(insn) : "unknown";
+}
+
+disassembler_t::disassembler_t()
+{
+ const uint32_t mask_rd = 0x1fUL << 7;
+ const uint32_t match_rd_ra = 1UL << 7;
+ const uint32_t mask_rs1 = 0x1fUL << 15;
+ const uint32_t match_rs1_ra = 1UL << 15;
+ const uint32_t mask_rs2 = 0x1fUL << 20;
+ const uint32_t mask_imm = 0xfffUL << 20;
+
+ #define DECLARE_INSN(code, match, mask) \
+ const uint32_t match_##code = match; \
+ const uint32_t mask_##code = mask;
+ #include "encoding.h"
+ #undef DECLARE_INSN
+
+ // explicit per-instruction disassembly
+ #define DISASM_INSN(name, code, extra, ...) \
+ add_insn(new disasm_insn_t(name, match_##code, mask_##code | (extra), __VA_ARGS__));
+ #define DEFINE_NOARG(code) \
+ add_insn(new disasm_insn_t(#code, match_##code, mask_##code, {}));
+ #define DEFINE_RTYPE(code) DISASM_INSN(#code, code, 0, {&xrd, &xrs1, &xrs2})
+ #define DEFINE_ITYPE(code) DISASM_INSN(#code, code, 0, {&xrd, &xrs1, &imm})
+ #define DEFINE_I0TYPE(name, code) DISASM_INSN(name, code, mask_rs1, {&xrd, &imm})
+ #define DEFINE_I1TYPE(name, code) DISASM_INSN(name, code, mask_imm, {&xrd, &xrs1})
+ #define DEFINE_I2TYPE(name, code) DISASM_INSN(name, code, mask_rd | mask_imm, {&xrs1})
+ #define DEFINE_LTYPE(code) DISASM_INSN(#code, code, 0, {&xrd, &bigimm})
+ #define DEFINE_BTYPE(code) DISASM_INSN(#code, code, 0, {&xrs1, &xrs2, &branch_target})
+ #define DEFINE_B0TYPE(name, code) DISASM_INSN(name, code, mask_rs1 | mask_rs2, {&branch_target})
+ #define DEFINE_B1TYPE(name, code) DISASM_INSN(name, code, mask_rs2, {&xrs1, &branch_target})
+ #define DEFINE_XLOAD(code) DISASM_INSN(#code, code, 0, {&xrd, &load_address})
+ #define DEFINE_XSTORE(code) DISASM_INSN(#code, code, 0, {&xrs2, &store_address})
+ #define DEFINE_XAMO(code) DISASM_INSN(#code, code, 0, {&xrd, &xrs2, &amo_address})
+ #define DEFINE_FLOAD(code) DISASM_INSN(#code, code, 0, {&frd, &load_address})
+ #define DEFINE_FSTORE(code) DISASM_INSN(#code, code, 0, {&frs2, &store_address})
+ #define DEFINE_FRTYPE(code) DISASM_INSN(#code, code, 0, {&frd, &frs1, &frs2})
+ #define DEFINE_FR1TYPE(code) DISASM_INSN(#code, code, 0, {&frd, &frs1})
+ #define DEFINE_FR3TYPE(code) DISASM_INSN(#code, code, 0, {&frd, &frs1, &frs2, &frs3})
+ #define DEFINE_FXTYPE(code) DISASM_INSN(#code, code, 0, {&xrd, &frs1})
+ #define DEFINE_XFTYPE(code) DISASM_INSN(#code, code, 0, {&frd, &xrs1})
+
+ DEFINE_XLOAD(lb)
+ DEFINE_XLOAD(lbu)
+ DEFINE_XLOAD(lh)
+ DEFINE_XLOAD(lhu)
+ DEFINE_XLOAD(lw)
+ DEFINE_XLOAD(lwu)
+ DEFINE_XLOAD(ld)
+
+ DEFINE_XSTORE(sb)
+ DEFINE_XSTORE(sh)
+ DEFINE_XSTORE(sw)
+ DEFINE_XSTORE(sd)
+
+ DEFINE_XAMO(amoadd_w)
+ DEFINE_XAMO(amoswap_w)
+ DEFINE_XAMO(amoand_w)
+ DEFINE_XAMO(amoor_w)
+ DEFINE_XAMO(amoxor_w)
+ DEFINE_XAMO(amomin_w)
+ DEFINE_XAMO(amomax_w)
+ DEFINE_XAMO(amominu_w)
+ DEFINE_XAMO(amomaxu_w)
+ DEFINE_XAMO(amoadd_d)
+ DEFINE_XAMO(amoswap_d)
+ DEFINE_XAMO(amoand_d)
+ DEFINE_XAMO(amoor_d)
+ DEFINE_XAMO(amoxor_d)
+ DEFINE_XAMO(amomin_d)
+ DEFINE_XAMO(amomax_d)
+ DEFINE_XAMO(amominu_d)
+ DEFINE_XAMO(amomaxu_d)
+
+ DEFINE_XAMO(lr_w)
+ DEFINE_XAMO(sc_w)
+ DEFINE_XAMO(lr_d)
+ DEFINE_XAMO(sc_d)
+
+ DEFINE_FLOAD(flw)
+ DEFINE_FLOAD(fld)
+
+ DEFINE_FSTORE(fsw)
+ DEFINE_FSTORE(fsd)
+
+ add_insn(new disasm_insn_t("j", match_jal, mask_jal | mask_rd, {&jump_target}));
+ add_insn(new disasm_insn_t("jal", match_jal | match_rd_ra, mask_jal | mask_rd, {&jump_target}));
+ add_insn(new disasm_insn_t("jal", match_jal, mask_jal, {&xrd, &jump_target}));
+
+ DEFINE_B0TYPE("b", beq);
+ DEFINE_B1TYPE("beqz", beq);
+ DEFINE_B1TYPE("bnez", bne);
+ DEFINE_B1TYPE("bltz", blt);
+ DEFINE_B1TYPE("bgez", bge);
+ DEFINE_BTYPE(beq)
+ DEFINE_BTYPE(bne)
+ DEFINE_BTYPE(blt)
+ DEFINE_BTYPE(bge)
+ DEFINE_BTYPE(bltu)
+ DEFINE_BTYPE(bgeu)
+
+ DEFINE_LTYPE(lui);
+ DEFINE_LTYPE(auipc);
+
+ DEFINE_I2TYPE("jr", jalr);
+ add_insn(new disasm_insn_t("jalr", match_jalr | match_rd_ra, mask_jalr | mask_rd | mask_imm, {&xrs1}));
+ add_insn(new disasm_insn_t("ret", match_jalr | match_rs1_ra, mask_jalr | mask_rd | mask_rs1 | mask_imm, {}));
+ DEFINE_ITYPE(jalr);
+
+ add_insn(new disasm_insn_t("nop", match_addi, mask_addi | mask_rd | mask_rs1 | mask_imm, {}));
+ add_insn(new disasm_insn_t(" - ", match_xor, mask_xor | mask_rd | mask_rs1 | mask_rs2, {})); // for machine-generated bubbles
+ DEFINE_I0TYPE("li", addi);
+ DEFINE_I1TYPE("move", addi);
+ DEFINE_ITYPE(addi);
+ DEFINE_ITYPE(slli);
+ DEFINE_ITYPE(slti);
+ DEFINE_ITYPE(sltiu);
+ DEFINE_ITYPE(xori);
+ DEFINE_ITYPE(srli);
+ DEFINE_ITYPE(srai);
+ DEFINE_ITYPE(ori);
+ DEFINE_ITYPE(andi);
+ DEFINE_ITYPE(addiw);
+ DEFINE_ITYPE(slliw);
+ DEFINE_ITYPE(srliw);
+ DEFINE_ITYPE(sraiw);
+
+ DEFINE_RTYPE(add);
+ DEFINE_RTYPE(sub);
+ DEFINE_RTYPE(sll);
+ DEFINE_RTYPE(slt);
+ DEFINE_RTYPE(sltu);
+ DEFINE_RTYPE(xor);
+ DEFINE_RTYPE(srl);
+ DEFINE_RTYPE(sra);
+ DEFINE_RTYPE(or);
+ DEFINE_RTYPE(and);
+ DEFINE_RTYPE(mul);
+ DEFINE_RTYPE(mulh);
+ DEFINE_RTYPE(mulhu);
+ DEFINE_RTYPE(mulhsu);
+ DEFINE_RTYPE(div);
+ DEFINE_RTYPE(divu);
+ DEFINE_RTYPE(rem);
+ DEFINE_RTYPE(remu);
+ DEFINE_RTYPE(addw);
+ DEFINE_RTYPE(subw);
+ DEFINE_RTYPE(sllw);
+ DEFINE_RTYPE(srlw);
+ DEFINE_RTYPE(sraw);
+ DEFINE_RTYPE(mulw);
+ DEFINE_RTYPE(divw);
+ DEFINE_RTYPE(divuw);
+ DEFINE_RTYPE(remw);
+ DEFINE_RTYPE(remuw);
+
+ DEFINE_NOARG(scall);
+ DEFINE_NOARG(sbreak);
+ DEFINE_NOARG(fence);
+ DEFINE_NOARG(fence_i);
+
+ add_insn(new disasm_insn_t("csrr", match_csrrs, mask_csrrs | mask_rs1, {&xrd, &csr}));
+ add_insn(new disasm_insn_t("csrw", match_csrrw, mask_csrrw | mask_rd, {&csr, &xrs1}));
+ add_insn(new disasm_insn_t("csrrw", match_csrrw, mask_csrrw, {&xrd, &csr, &xrs1}));
+ add_insn(new disasm_insn_t("csrrs", match_csrrs, mask_csrrs, {&xrd, &csr, &xrs1}));
+ add_insn(new disasm_insn_t("csrrc", match_csrrc, mask_csrrc, {&xrd, &csr, &xrs1}));
+ add_insn(new disasm_insn_t("csrrwi", match_csrrwi, mask_csrrwi, {&xrd, &csr, &zimm5}));
+ add_insn(new disasm_insn_t("csrrsi", match_csrrsi, mask_csrrsi, {&xrd, &csr, &zimm5}));
+ add_insn(new disasm_insn_t("csrrci", match_csrrci, mask_csrrci, {&xrd, &csr, &zimm5}));
+ DEFINE_NOARG(sret)
+
+ DEFINE_FRTYPE(fadd_s);
+ DEFINE_FRTYPE(fsub_s);
+ DEFINE_FRTYPE(fmul_s);
+ DEFINE_FRTYPE(fdiv_s);
+ DEFINE_FR1TYPE(fsqrt_s);
+ DEFINE_FRTYPE(fmin_s);
+ DEFINE_FRTYPE(fmax_s);
+ DEFINE_FR3TYPE(fmadd_s);
+ DEFINE_FR3TYPE(fmsub_s);
+ DEFINE_FR3TYPE(fnmadd_s);
+ DEFINE_FR3TYPE(fnmsub_s);
+ DEFINE_FRTYPE(fsgnj_s);
+ DEFINE_FRTYPE(fsgnjn_s);
+ DEFINE_FRTYPE(fsgnjx_s);
+ DEFINE_FR1TYPE(fcvt_s_d);
+ DEFINE_XFTYPE(fcvt_s_l);
+ DEFINE_XFTYPE(fcvt_s_lu);
+ DEFINE_XFTYPE(fcvt_s_w);
+ DEFINE_XFTYPE(fcvt_s_wu);
+ DEFINE_XFTYPE(fcvt_s_wu);
+ DEFINE_XFTYPE(fmv_s_x);
+ DEFINE_FXTYPE(fcvt_l_s);
+ DEFINE_FXTYPE(fcvt_lu_s);
+ DEFINE_FXTYPE(fcvt_w_s);
+ DEFINE_FXTYPE(fcvt_wu_s);
+ DEFINE_FXTYPE(fclass_s);
+ DEFINE_FXTYPE(fmv_x_s);
+ DEFINE_FXTYPE(feq_s);
+ DEFINE_FXTYPE(flt_s);
+ DEFINE_FXTYPE(fle_s);
+
+ DEFINE_FRTYPE(fadd_d);
+ DEFINE_FRTYPE(fsub_d);
+ DEFINE_FRTYPE(fmul_d);
+ DEFINE_FRTYPE(fdiv_d);
+ DEFINE_FR1TYPE(fsqrt_d);
+ DEFINE_FRTYPE(fmin_d);
+ DEFINE_FRTYPE(fmax_d);
+ DEFINE_FR3TYPE(fmadd_d);
+ DEFINE_FR3TYPE(fmsub_d);
+ DEFINE_FR3TYPE(fnmadd_d);
+ DEFINE_FR3TYPE(fnmsub_d);
+ DEFINE_FRTYPE(fsgnj_d);
+ DEFINE_FRTYPE(fsgnjn_d);
+ DEFINE_FRTYPE(fsgnjx_d);
+ DEFINE_FR1TYPE(fcvt_d_s);
+ DEFINE_XFTYPE(fcvt_d_l);
+ DEFINE_XFTYPE(fcvt_d_lu);
+ DEFINE_XFTYPE(fcvt_d_w);
+ DEFINE_XFTYPE(fcvt_d_wu);
+ DEFINE_XFTYPE(fcvt_d_wu);
+ DEFINE_XFTYPE(fmv_d_x);
+ DEFINE_FXTYPE(fcvt_l_d);
+ DEFINE_FXTYPE(fcvt_lu_d);
+ DEFINE_FXTYPE(fcvt_w_d);
+ DEFINE_FXTYPE(fcvt_wu_d);
+ DEFINE_FXTYPE(fclass_d);
+ DEFINE_FXTYPE(fmv_x_d);
+ DEFINE_FXTYPE(feq_d);
+ DEFINE_FXTYPE(flt_d);
+ DEFINE_FXTYPE(fle_d);
+
+ // provide a default disassembly for all instructions as a fallback
+ #define DECLARE_INSN(code, match, mask) \
+ add_insn(new disasm_insn_t(#code " (args unknown)", match, mask, {}));
+ #include "encoding.h"
+ #undef DECLARE_INSN
+}
+
+const disasm_insn_t* disassembler_t::lookup(insn_t insn)
+{
+ size_t idx = insn.bits() % HASH_SIZE;
+ for (size_t j = 0; j < chain[idx].size(); j++)
+ if(*chain[idx][j] == insn)
+ return chain[idx][j];
+
+ idx = HASH_SIZE;
+ for (size_t j = 0; j < chain[idx].size(); j++)
+ if(*chain[idx][j] == insn)
+ return chain[idx][j];
+
+ return NULL;
+}
+
+void disassembler_t::add_insn(disasm_insn_t* insn)
+{
+ size_t idx = HASH_SIZE;
+ if (insn->get_mask() % HASH_SIZE == HASH_SIZE - 1)
+ idx = insn->get_match() % HASH_SIZE;
+ chain[idx].push_back(insn);
+}
+
+disassembler_t::~disassembler_t()
+{
+ for (size_t i = 0; i < HASH_SIZE+1; i++)
+ for (size_t j = 0; j < chain[i].size(); j++)
+ delete chain[i][j];
+}
--- /dev/null
+#include "extension.h"
+#include <string>
+#include <map>
+#include <dlfcn.h>
+
+static std::map<std::string, std::function<extension_t*()>>& extensions()
+{
+ static std::map<std::string, std::function<extension_t*()>> v;
+ return v;
+}
+
+void register_extension(const char* name, std::function<extension_t*()> f)
+{
+ extensions()[name] = f;
+}
+
+std::function<extension_t*()> find_extension(const char* name)
+{
+ if (!extensions().count(name)) {
+ // try to find extension xyz by loading libxyz.so
+ std::string libname = std::string("lib") + name + ".so";
+ if (!dlopen(libname.c_str(), RTLD_LAZY)) {
+ fprintf(stderr, "couldn't find extension '%s' (or library '%s')\n",
+ name, libname.c_str());
+ exit(-1);
+ }
+ if (!extensions().count(name)) {
+ fprintf(stderr, "couldn't find extension '%s' in shared library '%s'\n",
+ name, libname.c_str());
+ exit(-1);
+ }
+ }
+
+ return extensions()[name];
+}
--- /dev/null
+// See LICENSE for license details.
+
+// This little program finds occurrences of strings like
+// DASM(ffabc013)
+// in its input, then replaces them with the disassembly
+// enclosed hexadecimal number, interpreted as a RISC-V
+// instruction.
+
+#include "disasm.h"
+#include "extension.h"
+#include <iostream>
+#include <string>
+#include <cstdint>
+#include <fesvr/option_parser.h>
+using namespace std;
+
+int main(int argc, char** argv)
+{
+ string s;
+ disassembler_t d;
+
+ std::function<extension_t*()> extension;
+ option_parser_t parser;
+ parser.option(0, "extension", 1, [&](const char* s){extension = find_extension(s);});
+
+ while (getline(cin, s))
+ {
+ for (size_t start = 0; (start = s.find("DASM(", start)) != string::npos; )
+ {
+ size_t end = s.find(')', start);
+ if (end == string::npos)
+ break;
+
+ size_t numstart = start + strlen("DASM(");
+ insn_bits_t bits = strtoull(&s[numstart], NULL, 16);
+ string dis = d.disassemble(bits);
+ s = s.substr(0, start) + dis + s.substr(end+1);
+ start += dis.length();
+ }
+
+ cout << s << '\n';
+ }
+
+ return 0;
+}
--- /dev/null
+// See LICENSE for license details.
+
+#include "sim.h"
+#include "htif.h"
+#include "cachesim.h"
+#include "extension.h"
+#include <dlfcn.h>
+#include <fesvr/option_parser.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <vector>
+#include <string>
+#include <memory>
+
+static void help()
+{
+ fprintf(stderr, "usage: spike [host options] <target program> [target options]\n");
+ fprintf(stderr, "Host Options:\n");
+ fprintf(stderr, " -p <n> Simulate <n> processors\n");
+ fprintf(stderr, " -m <n> Provide <n> MB of target memory\n");
+ fprintf(stderr, " -d Interactive debug mode\n");
+ fprintf(stderr, " -g Track histogram of PCs\n");
+ fprintf(stderr, " -h Print this help message\n");
+ fprintf(stderr, " --ic=<S>:<W>:<B> Instantiate a cache model with S sets,\n");
+ fprintf(stderr, " --dc=<S>:<W>:<B> W ways, and B-byte blocks (with S and\n");
+ fprintf(stderr, " --l2=<S>:<W>:<B> B both powers of 2).\n");
+ fprintf(stderr, " --extension=<name> Specify RoCC Extension\n");
+ fprintf(stderr, " --extlib=<name> Shared library to load\n");
+ exit(1);
+}
+
+int main(int argc, char** argv)
+{
+ bool debug = false;
+ bool histogram = false;
+ size_t nprocs = 1;
+ size_t mem_mb = 0;
+ std::unique_ptr<icache_sim_t> ic;
+ std::unique_ptr<dcache_sim_t> dc;
+ std::unique_ptr<cache_sim_t> l2;
+ std::function<extension_t*()> extension;
+
+ option_parser_t parser;
+ parser.help(&help);
+ parser.option('h', 0, 0, [&](const char* s){help();});
+ parser.option('d', 0, 0, [&](const char* s){debug = true;});
+ parser.option('g', 0, 0, [&](const char* s){histogram = true;});
+ parser.option('p', 0, 1, [&](const char* s){nprocs = atoi(s);});
+ parser.option('m', 0, 1, [&](const char* s){mem_mb = atoi(s);});
+ parser.option(0, "ic", 1, [&](const char* s){ic.reset(new icache_sim_t(s));});
+ parser.option(0, "dc", 1, [&](const char* s){dc.reset(new dcache_sim_t(s));});
+ parser.option(0, "l2", 1, [&](const char* s){l2.reset(cache_sim_t::construct(s, "L2$"));});
+ parser.option(0, "extension", 1, [&](const char* s){extension = find_extension(s);});
+ parser.option(0, "extlib", 1, [&](const char *s){
+ void *lib = dlopen(s, RTLD_NOW | RTLD_GLOBAL);
+ if (lib == NULL) {
+ fprintf(stderr, "Unable to load extlib '%s': %s\n", s, dlerror());
+ exit(-1);
+ }
+ });
+
+ auto argv1 = parser.parse(argv);
+ if (!*argv1)
+ help();
+ std::vector<std::string> htif_args(argv1, (const char*const*)argv + argc);
+ sim_t s(nprocs, mem_mb, htif_args);
+
+ if (ic && l2) ic->set_miss_handler(&*l2);
+ if (dc && l2) dc->set_miss_handler(&*l2);
+ for (size_t i = 0; i < nprocs; i++)
+ {
+ if (ic) s.get_core(i)->get_mmu()->register_memtracer(&*ic);
+ if (dc) s.get_core(i)->get_mmu()->register_memtracer(&*dc);
+ if (extension) s.get_core(i)->register_extension(extension());
+ }
+
+ s.set_debug(debug);
+ s.set_histogram(histogram);
+ return s.run();
+}
--- /dev/null
+AC_CHECK_LIB(dl, dlopen, [], [AC_MSG_ERROR([libdl is required])])
--- /dev/null
+spike_main_subproject_deps = \
+ softfloat \
+ riscv \
+
+spike_main_install_prog_srcs = \
+ spike.cc \
+ riscv-dis.cc \
+ xspike.cc \
+ termios-xspike.cc \
+
+spike_main_hdrs = \
+
+spike_main_srcs = \
+ extensions.cc \
--- /dev/null
+// See LICENSE for license details.
+
+// termios-xspike sets up a canonical terminal and blocks forever.
+// It allows us to send Ctrl-C etc. to the target machine.
+
+#include <unistd.h>
+#include <termios.h>
+#include <signal.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+int main()
+{
+ struct termios old_tios;
+ if (tcgetattr(0, &old_tios) < 0)
+ return -1;
+
+ signal(SIGTERM, [](int) { });
+
+ struct termios new_tios = old_tios;
+ new_tios.c_lflag &= ~(ICANON | ECHO | ISIG);
+ if (tcsetattr(0, TCSANOW, &new_tios) < 0)
+ return -1;
+
+ pause();
+
+ return tcsetattr(0, TCSANOW, &old_tios);
+}
--- /dev/null
+// See LICENSE for license details.
+
+// xspike forks an xterm for spike's target machine console,
+// preserving the current terminal for debugging.
+
+#include <unistd.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <sys/wait.h>
+#include <cstdio>
+#include <climits>
+#include <cstring>
+#include <stdexcept>
+
+static pid_t fork_spike(int tty_fd, int argc, char** argv);
+static pid_t fork_xterm(int* tty_fd);
+
+int main(int argc, char** argv)
+{
+ int tty_fd, wait_status, ret = -1;
+ pid_t xterm, spike;
+
+ static bool signal_exit = false;
+ auto handle_signal = [](int) { signal_exit = true; };
+
+ if ((xterm = fork_xterm(&tty_fd)) < 0)
+ {
+ fprintf(stderr, "could not open xterm\n");
+ goto out;
+ }
+
+ signal(SIGINT, handle_signal);
+
+ if ((spike = fork_spike(tty_fd, argc, argv)) < 0)
+ {
+ fprintf(stderr, "could not open spike\n");
+ goto close_xterm;
+ }
+
+ while ((ret = waitpid(spike, &wait_status, 0)) < 0)
+ if (signal_exit)
+ break;
+
+ if (ret < 0) // signal_exit
+ kill(spike, SIGTERM);
+ else
+ ret = WIFEXITED(wait_status) ? WEXITSTATUS(wait_status) : -1;
+
+close_xterm:
+ kill(-xterm, SIGTERM);
+out:
+ return ret;
+}
+
+static pid_t fork_spike(int tty_fd, int argc, char** argv)
+{
+ pid_t pid = fork();
+ if (pid < 0)
+ return -1;
+
+ if (pid == 0)
+ {
+ if (dup2(tty_fd, STDIN_FILENO) < 0 || dup2(tty_fd, STDOUT_FILENO) < 0)
+ return -1;
+ execvp("spike", argv);
+ return -1;
+ }
+
+ return pid;
+}
+
+static pid_t fork_xterm(int* tty_fd)
+{
+ static const char cmd[] = "3>&1 xterm -title xspike -e sh -c 'tty 1>&3; termios-xspike'";
+
+ int fds[2];
+ if (pipe(fds) < 0)
+ return -1;
+
+ pid_t pid = fork();
+ if (pid < 0)
+ return -1;
+
+ if (pid == 0)
+ {
+ setpgid(0, 0);
+ if (dup2(fds[1], STDOUT_FILENO) < 0)
+ return -1;
+ execl("/bin/sh", "sh", "-c", cmd, NULL);
+ return -1;
+ }
+
+ char tty[NAME_MAX];
+ ssize_t ttylen = read(fds[0], tty, sizeof(tty));
+ if (ttylen <= 1 || tty[ttylen-1] != '\n')
+ return -1;
+ tty[ttylen-1] = '\0';
+ if ((*tty_fd = open(tty, O_RDWR)) < 0)
+ return -1;
+
+ return pid;
+}
projects / riscv-isa-sim.git / commitdiff