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-rw-r--r--riscv/interactive.cc336
1 files changed, 285 insertions, 51 deletions
diff --git a/riscv/interactive.cc b/riscv/interactive.cc
index 88eb86b..cf95bf6 100644
--- a/riscv/interactive.cc
+++ b/riscv/interactive.cc
@@ -20,13 +20,45 @@
#include <algorithm>
#include <math.h>
+#ifdef __GNUC__
+# pragma GCC diagnostic ignored "-Wunused-parameter"
+#endif
+
#define MAX_CMD_STR 40 // maximum possible size of a command line
+#define BITS_PER_CHAR 8
#define STR_(X) #X // these definitions allow to use a macro as a string
#define STR(X) STR_(X)
DECLARE_TRAP(-1, interactive)
+static std::vector<std::string> history_commands;
+
+// if input an arrow/home key, there will be a 3/4-key input sequence,
+// so we use an uint32_t to buffer it
+typedef uint32_t keybuffer_t;
+
+enum KEYCODE
+{
+ KEYCODE_HEADER0 = 0x1b,
+ KEYCODE_HEADER1 = 0x1b5b,
+ KEYCODE_LEFT = 0x1b5b44,
+ KEYCODE_RIGHT = 0x1b5b43,
+ KEYCODE_UP = 0x1b5b41,
+ KEYCODE_DOWN = 0x1b5b42,
+ KEYCODE_HOME0 = 0x1b5b48,
+ KEYCODE_HOME1_0 = 0x1b5b31,
+ KEYCODE_HOME1_1 = 0x1b5b317e,
+ KEYCODE_END0 = 0x1b5b46,
+ KEYCODE_END1_0 = 0x1b5b34,
+ KEYCODE_END1_1 = 0x1b5b347e,
+ KEYCODE_BACKSPACE0 = 0x8,
+ KEYCODE_BACKSPACE1_0 = 0x1b5b33,
+ KEYCODE_BACKSPACE1_1 = 0x1b5b337e,
+ KEYCODE_BACKSPACE2 = 0x7f,
+ KEYCODE_ENTER = '\n',
+};
+
processor_t *sim_t::get_core(const std::string& i)
{
char *ptr;
@@ -36,30 +68,182 @@ processor_t *sim_t::get_core(const std::string& i)
return get_core(p);
}
+static void clear_str(bool noncanonical, int fd, std::string target_str)
+{
+ if (noncanonical)
+ {
+ std::string clear_motion;
+ clear_motion += '\r';
+ for (unsigned i = 0; i < target_str.size(); i++)
+ {
+ clear_motion += ' ';
+ }
+ clear_motion += '\r';
+ if (write(fd, clear_motion.c_str(), clear_motion.size() + 1))
+ ; // shut up gcc
+ }
+}
+
+static void send_key(bool noncanonical, int fd, keybuffer_t key_code, const int len)
+{
+ if (noncanonical)
+ {
+ std::string key_motion;
+ for (int i = len - 1; i >= 0; i--)
+ {
+ key_motion += (char) ((key_code >> (i * BITS_PER_CHAR)) & 0xff);
+ }
+ if (write(fd, key_motion.c_str(), len) != len)
+ ; // shut up gcc
+ }
+}
+
static std::string readline(int fd)
{
struct termios tios;
+ // try to make sure the terminal is noncanonical and nonecho
+ if (tcgetattr(fd, &tios) == 0)
+ {
+ tios.c_lflag &= (~ICANON);
+ tios.c_lflag &= (~ECHO);
+ tcsetattr(fd, TCSANOW, &tios);
+ }
bool noncanonical = tcgetattr(fd, &tios) == 0 && (tios.c_lflag & ICANON) == 0;
- std::string s;
+ std::string s_head = std::string("(spike) ");
+ std::string s = s_head;
+ keybuffer_t key_buffer = 0;
+ // index for up/down arrow
+ size_t history_index = 0;
+ // position for left/right arrow
+ size_t cursor_pos = s.size();
+ const size_t initial_s_len = cursor_pos;
+ std::cerr << s << std::flush;
for (char ch; read(fd, &ch, 1) == 1; )
{
- if (ch == '\x7f')
+ uint32_t keycode = key_buffer << BITS_PER_CHAR | ch;
+ switch (keycode)
{
- if (s.empty())
- continue;
- s.erase(s.end()-1);
-
- if (noncanonical && write(fd, "\b \b", 3) != 3) {}
+ // the partial keycode, add to the key_buffer
+ case KEYCODE_HEADER0:
+ case KEYCODE_HEADER1:
+ case KEYCODE_HOME1_0:
+ case KEYCODE_END1_0:
+ case KEYCODE_BACKSPACE1_0:
+ key_buffer = keycode;
+ break;
+ // for backspace key
+ case KEYCODE_BACKSPACE0:
+ case KEYCODE_BACKSPACE1_1:
+ case KEYCODE_BACKSPACE2:
+ if (cursor_pos <= initial_s_len)
+ continue;
+ clear_str(noncanonical, fd, s);
+ cursor_pos--;
+ s.erase(cursor_pos, 1);
+ if (noncanonical && write(fd, s.c_str(), s.size() + 1) != 1)
+ ; // shut up gcc
+ // move cursor by left arrow key
+ for (unsigned i = 0; i < s.size() - cursor_pos; i++) {
+ send_key(noncanonical, fd, KEYCODE_LEFT, 3);
+ }
+ key_buffer = 0;
+ break;
+ case KEYCODE_HOME0:
+ case KEYCODE_HOME1_1:
+ // move cursor by left arrow key
+ for (unsigned i = 0; i < cursor_pos - initial_s_len; i++) {
+ send_key(noncanonical, fd, KEYCODE_LEFT, 3);
+ }
+ cursor_pos = initial_s_len;
+ key_buffer = 0;
+ break;
+ case KEYCODE_END0:
+ case KEYCODE_END1_1:
+ // move cursor by right arrow key
+ for (unsigned i = 0; i < s.size() - cursor_pos; i++) {
+ send_key(noncanonical, fd, KEYCODE_RIGHT, 3);
+ }
+ cursor_pos = s.size();
+ key_buffer = 0;
+ break;
+ case KEYCODE_UP:
+ // up arrow
+ if (history_commands.size() > 0) {
+ clear_str(noncanonical, fd, s);
+ history_index = std::min(history_commands.size(), history_index + 1);
+ s = history_commands[history_commands.size() - history_index];
+ if (noncanonical && write(fd, s.c_str(), s.size() + 1))
+ ; // shut up gcc
+ cursor_pos = s.size();
+ }
+ key_buffer = 0;
+ break;
+ case KEYCODE_DOWN:
+ // down arrow
+ if (history_commands.size() > 0) {
+ clear_str(noncanonical, fd, s);
+ history_index = std::max(0, (int)history_index - 1);
+ if (history_index == 0) {
+ s = s_head;
+ } else {
+ s = history_commands[history_commands.size() - history_index];
+ }
+ if (noncanonical && write(fd, s.c_str(), s.size() + 1))
+ ; // shut up gcc
+ cursor_pos = s.size();
+ }
+ key_buffer = 0;
+ break;
+ case KEYCODE_LEFT:
+ if (s.size() > initial_s_len) {
+ cursor_pos = cursor_pos - 1;
+ if ((int)cursor_pos < (int)initial_s_len) {
+ cursor_pos = initial_s_len;
+ } else {
+ send_key(noncanonical, fd, KEYCODE_LEFT, 3);
+ }
+ }
+ key_buffer = 0;
+ break;
+ case KEYCODE_RIGHT:
+ if (s.size() > initial_s_len) {
+ cursor_pos = cursor_pos + 1;
+ if (cursor_pos > s.size()) {
+ cursor_pos = s.size();
+ } else {
+ send_key(noncanonical, fd, KEYCODE_RIGHT, 3);
+ }
+ }
+ key_buffer = 0;
+ break;
+ case KEYCODE_ENTER:
+ if (noncanonical && write(fd, &ch, 1) != 1)
+ ; // shut up gcc
+ if (s.size() > initial_s_len && (history_commands.size() == 0 || s != history_commands[history_commands.size() - 1])) {
+ history_commands.push_back(s);
+ }
+ return s.substr(initial_s_len);
+ default:
+ DEFAULT_KEY:
+ // unknown buffered key, do nothing
+ if (key_buffer != 0) {
+ key_buffer = 0;
+ break;
+ }
+ clear_str(noncanonical, fd, s);
+ s.insert(cursor_pos, 1, ch);
+ cursor_pos++;
+ if (noncanonical && write(fd, s.c_str(), s.size() + 1) != 1)
+ ; // shut up gcc
+ // send left arrow key to move cursor
+ for (unsigned i = 0; i < s.size() - cursor_pos; i++) {
+ send_key(noncanonical, fd, KEYCODE_LEFT, 3);
+ }
+ break;
}
- else if (noncanonical && write(fd, &ch, 1) != 1) {}
-
- if (ch == '\n')
- break;
- if (ch != '\x7f')
- s += ch;
}
- return s;
+ return s.substr(initial_s_len);
}
#ifdef HAVE_BOOST_ASIO
@@ -90,7 +274,6 @@ std::string sim_t::rin(boost::asio::streambuf *bout_ptr) {
// output goes to socket
sout_.rdbuf(bout_ptr);
} else { // if we are not listening on a socket, get commands from terminal
- std::cerr << ": " << std::flush;
s = readline(2); // 2 is stderr, but when doing reads it reverts to stdin
// output goes to stderr
sout_.rdbuf(std::cerr.rdbuf());
@@ -132,9 +315,12 @@ void sim_t::interactive()
funcs["pc"] = &sim_t::interactive_pc;
funcs["mem"] = &sim_t::interactive_mem;
funcs["str"] = &sim_t::interactive_str;
+ funcs["mtime"] = &sim_t::interactive_mtime;
+ funcs["mtimecmp"] = &sim_t::interactive_mtimecmp;
funcs["until"] = &sim_t::interactive_until_silent;
funcs["untiln"] = &sim_t::interactive_until_noisy;
funcs["while"] = &sim_t::interactive_until_silent;
+ funcs["dump"] = &sim_t::interactive_dumpmems;
funcs["quit"] = &sim_t::interactive_quit;
funcs["q"] = funcs["quit"];
funcs["help"] = &sim_t::interactive_help;
@@ -150,17 +336,16 @@ void sim_t::interactive()
// first get commands from file, if cmd_file has been set
if (cmd_file && !feof(cmd_file) && fscanf(cmd_file,"%" STR(MAX_CMD_STR) "[^\n]\n", cmd_str)==1) {
// up to MAX_CMD_STR characters before \n, skipping \n
- s = cmd_str;
- // while we get input from file, output goes to stderr
- sout_.rdbuf(std::cerr.rdbuf());
+ s = cmd_str;
+ // while we get input from file, output goes to stderr
+ sout_.rdbuf(std::cerr.rdbuf());
} else {
- // when there are no commands left from file or if there was no file from the beginning
- cmd_file = NULL; // mark file pointer as being not valid, so any method can test this easily
+ // when there are no commands left from file or if there was no file from the beginning
+ cmd_file = NULL; // mark file pointer as being not valid, so any method can test this easily
#ifdef HAVE_BOOST_ASIO
- s = rin(&bout); // get command string from socket or terminal
+ s = rin(&bout); // get command string from socket or terminal
#else
- std::cerr << ": " << std::flush;
- s = readline(2); // 2 is stderr, but when doing reads it reverts to stdin
+ s = readline(2); // 2 is stderr, but when doing reads it reverts to stdin
#endif
}
@@ -211,15 +396,20 @@ void sim_t::interactive_help(const std::string& cmd, const std::vector<std::stri
"fregd <core> <reg> # Display double precision <reg> in <core>\n"
"vreg <core> [reg] # Display vector [reg] (all if omitted) in <core>\n"
"pc <core> # Show current PC in <core>\n"
- "mem <hex addr> # Show contents of physical memory\n"
- "str <core> <hex addr> # Show NUL-terminated C string at <hex addr> in core <core>\n"
+ "mem [core] <hex addr> # Show contents of virtual memory <hex addr> in [core] (physical memory <hex addr> if omitted)\n"
+ "str [core] <hex addr> # Show NUL-terminated C string at virtual address <hex addr> in [core] (physical address <hex addr> if omitted)\n"
+ "dump # Dump physical memory to binary files\n"
+ "mtime # Show mtime\n"
+ "mtimecmp <core> # Show mtimecmp for <core>\n"
"until reg <core> <reg> <val> # Stop when <reg> in <core> hits <val>\n"
+ "untiln reg <core> <reg> <val> # Run noisy and stop when <reg> in <core> hits <val>\n"
"until pc <core> <val> # Stop when PC in <core> hits <val>\n"
"untiln pc <core> <val> # Run noisy and stop when PC in <core> hits <val>\n"
- "until mem <addr> <val> # Stop when memory <addr> becomes <val>\n"
+ "until mem [core] <addr> <val> # Stop when virtual memory <addr> in [core] (physical address <addr> if omitted) becomes <val>\n"
+ "untiln mem [core] <addr> <val> # Run noisy and stop when virtual memory <addr> in [core] (physical address <addr> if omitted) becomes <val>\n"
"while reg <core> <reg> <val> # Run while <reg> in <core> is <val>\n"
"while pc <core> <val> # Run while PC in <core> is <val>\n"
- "while mem <addr> <val> # Run while memory <addr> is <val>\n"
+ "while mem [core] <addr> <val> # Run while virtual memory <addr> in [core] (physical memory <addr> if omitted) is <val>\n"
"run [count] # Resume noisy execution (until CTRL+C, or [count] insns)\n"
"r [count] Alias for run\n"
"rs [count] # Resume silent execution (until CTRL+C, or [count] insns)\n"
@@ -269,7 +459,7 @@ reg_t sim_t::get_pc(const std::vector<std::string>& args)
void sim_t::interactive_pc(const std::string& cmd, const std::vector<std::string>& args)
{
- if(args.size() != 1)
+ if (args.size() != 1)
throw trap_interactive();
processor_t *p = get_core(args[0]);
@@ -305,19 +495,33 @@ reg_t sim_t::get_reg(const std::vector<std::string>& args)
return p->get_state()->XPR[r];
}
-freg_t sim_t::get_freg(const std::vector<std::string>& args)
+freg_t sim_t::get_freg(const std::vector<std::string>& args, int size)
{
- if(args.size() != 2)
+ if (args.size() != 2)
throw trap_interactive();
processor_t *p = get_core(args[0]);
- int r = std::find(fpr_name, fpr_name + NFPR, args[1]) - fpr_name;
- if (r == NFPR)
- r = atoi(args[1].c_str());
- if (r >= NFPR)
- throw trap_interactive();
-
- return p->get_state()->FPR[r];
+ if (p->extension_enabled(EXT_ZFINX)) {
+ int r = std::find(xpr_name, xpr_name + NXPR, args[1]) - xpr_name;
+ if (r == NXPR)
+ r = atoi(args[1].c_str());
+ if (r >= NXPR)
+ throw trap_interactive();
+ if ((p->get_xlen() == 32) && (size == 64)) {
+ if (r % 2 != 0)
+ throw trap_interactive();
+ return freg(f64(r== 0 ? reg_t(0) : (READ_REG(r + 1) << 32) + zext32(READ_REG(r))));
+ } else { //xlen >= size
+ return {p->get_state()->XPR[r] | ~(((uint64_t)-1) >> (64 - size)) ,(uint64_t)-1};
+ }
+ } else {
+ int r = std::find(fpr_name, fpr_name + NFPR, args[1]) - fpr_name;
+ if (r == NFPR)
+ r = atoi(args[1].c_str());
+ if (r >= NFPR)
+ throw trap_interactive();
+ return p->get_state()->FPR[r];
+ }
}
void sim_t::interactive_vreg(const std::string& cmd, const std::vector<std::string>& args)
@@ -347,9 +551,9 @@ void sim_t::interactive_vreg(const std::string& cmd, const std::vector<std::stri
for (int r = rstart; r < rend; ++r) {
out << std::setfill (' ') << std::left << std::setw(4) << vr_name[r] << std::right << ": ";
- for (int e = num_elem-1; e >= 0; --e){
+ for (int e = num_elem-1; e >= 0; --e) {
uint64_t val;
- switch(elen){
+ switch (elen) {
case 8:
val = p->VU.elt<uint64_t>(r, e);
out << std::dec << "[" << e << "]: 0x" << std::hex << std::setfill ('0') << std::setw(16) << val << " ";
@@ -372,11 +576,10 @@ void sim_t::interactive_vreg(const std::string& cmd, const std::vector<std::stri
}
}
-
void sim_t::interactive_reg(const std::string& cmd, const std::vector<std::string>& args)
{
if (args.size() < 1)
- throw trap_interactive();
+ throw trap_interactive();
processor_t *p = get_core(args[0]);
int max_xlen = p->get_isa().get_max_xlen();
@@ -389,14 +592,14 @@ void sim_t::interactive_reg(const std::string& cmd, const std::vector<std::strin
for (int r = 0; r < NXPR; ++r) {
out << std::setfill(' ') << std::setw(4) << xpr_name[r]
- << ": 0x" << std::setfill('0') << std::setw(max_xlen/4)
- << zext(p->get_state()->XPR[r], max_xlen);
+ << ": 0x" << std::setfill('0') << std::setw(max_xlen/4)
+ << zext(p->get_state()->XPR[r], max_xlen);
if ((r + 1) % 4 == 0)
out << std::endl;
}
} else {
- out << "0x" << std::setfill('0') << std::setw(max_xlen/4)
- << zext(get_reg(args), max_xlen) << std::endl;
+ out << "0x" << std::setfill('0') << std::setw(max_xlen/4)
+ << zext(get_reg(args), max_xlen) << std::endl;
}
}
@@ -409,7 +612,7 @@ union fpr
void sim_t::interactive_freg(const std::string& cmd, const std::vector<std::string>& args)
{
- freg_t r = get_freg(args);
+ freg_t r = get_freg(args, 64);
std::ostream out(sout_.rdbuf());
out << std::hex << "0x" << std::setfill ('0') << std::setw(16) << r.v[1] << std::setw(16) << r.v[0] << std::endl;
@@ -418,7 +621,7 @@ void sim_t::interactive_freg(const std::string& cmd, const std::vector<std::stri
void sim_t::interactive_fregh(const std::string& cmd, const std::vector<std::string>& args)
{
fpr f;
- f.r = freg(f16_to_f32(f16(get_freg(args))));
+ f.r = freg(f16_to_f32(f16(get_freg(args, 16))));
std::ostream out(sout_.rdbuf());
out << (isBoxedF32(f.r) ? (double)f.s : NAN) << std::endl;
@@ -427,7 +630,7 @@ void sim_t::interactive_fregh(const std::string& cmd, const std::vector<std::str
void sim_t::interactive_fregs(const std::string& cmd, const std::vector<std::string>& args)
{
fpr f;
- f.r = get_freg(args);
+ f.r = get_freg(args, 32);
std::ostream out(sout_.rdbuf());
out << (isBoxedF32(f.r) ? (double)f.s : NAN) << std::endl;
@@ -436,7 +639,7 @@ void sim_t::interactive_fregs(const std::string& cmd, const std::vector<std::str
void sim_t::interactive_fregd(const std::string& cmd, const std::vector<std::string>& args)
{
fpr f;
- f.r = get_freg(args);
+ f.r = get_freg(args, 64);
std::ostream out(sout_.rdbuf());
out << (isBoxedF64(f.r) ? f.d : NAN) << std::endl;
@@ -460,7 +663,7 @@ reg_t sim_t::get_mem(const std::vector<std::string>& args)
if (addr == LONG_MAX)
addr = strtoul(addr_str.c_str(),NULL,16);
- switch(addr % 8)
+ switch (addr % 8)
{
case 0:
val = mmu->load_uint64(addr);
@@ -507,7 +710,7 @@ void sim_t::interactive_str(const std::string& cmd, const std::vector<std::strin
std::ostream out(sout_.rdbuf());
char ch;
- while((ch = mmu->load_uint8(addr++)))
+ while ((ch = mmu->load_uint8(addr++)))
out << ch;
out << std::endl;
@@ -577,3 +780,34 @@ void sim_t::interactive_until(const std::string& cmd, const std::vector<std::str
step(1);
}
}
+
+void sim_t::interactive_dumpmems(const std::string& cmd, const std::vector<std::string>& args)
+{
+ for (unsigned i = 0; i < mems.size(); i++) {
+ std::stringstream mem_fname;
+ mem_fname << "mem.0x" << std::hex << mems[i].first << ".bin";
+
+ std::ofstream mem_file(mem_fname.str());
+ mems[i].second->dump(mem_file);
+ mem_file.close();
+ }
+}
+
+void sim_t::interactive_mtime(const std::string& cmd, const std::vector<std::string>& args)
+{
+ std::ostream out(sout_.rdbuf());
+ out << std::hex << std::setfill('0') << "0x" << std::setw(16)
+ << clint->get_mtime() << std::endl;
+}
+
+void sim_t::interactive_mtimecmp(const std::string& cmd, const std::vector<std::string>& args)
+{
+ if (args.size() != 1)
+ throw trap_interactive();
+
+ processor_t *p = get_core(args[0]);
+ std::ostream out(sout_.rdbuf());
+ out << std::hex << std::setfill('0') << "0x" << std::setw(16)
+ << clint->get_mtimecmp(p->get_id()) << std::endl;
+}
+
generated by cgit v1.1 at 2024-07-11 02:17:14 +0000