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// See LICENSE for license details.
#ifndef __HTIF_H
#define __HTIF_H
#include "memif.h"
#include "syscall.h"
#include "device.h"
#include "byteorder.h"
#include <string.h>
#include <map>
#include <vector>
#include <assert.h>
class htif_t : public chunked_memif_t
{
public:
htif_t();
htif_t(int argc, char** argv);
htif_t(const std::vector<std::string>& args);
virtual ~htif_t();
virtual void start();
virtual void stop();
int run();
bool done();
int exit_code();
virtual memif_t& memif() { return mem; }
template<typename T> inline T from_target(target_endian<T> n) const
{
#ifdef RISCV_ENABLE_DUAL_ENDIAN
memif_endianness_t endianness = get_target_endianness();
assert(endianness == memif_endianness_little || endianness == memif_endianness_big);
return endianness == memif_endianness_big? n.from_be() : n.from_le();
#else
return n.from_le();
#endif
}
template<typename T> inline target_endian<T> to_target(T n) const
{
#ifdef RISCV_ENABLE_DUAL_ENDIAN
memif_endianness_t endianness = get_target_endianness();
assert(endianness == memif_endianness_little || endianness == memif_endianness_big);
return endianness == memif_endianness_big? target_endian<T>::to_be(n) : target_endian<T>::to_le(n);
#else
return target_endian<T>::to_le(n);
#endif
}
protected:
virtual void reset() = 0;
virtual void read_chunk(addr_t taddr, size_t len, void* dst) = 0;
virtual void write_chunk(addr_t taddr, size_t len, const void* src) = 0;
virtual void clear_chunk(addr_t taddr, size_t len);
virtual size_t chunk_align() = 0;
virtual size_t chunk_max_size() = 0;
virtual std::map<std::string, uint64_t> load_payload(const std::string& payload, reg_t* entry);
virtual void load_program();
virtual void idle() {}
const std::vector<std::string>& host_args() { return hargs; }
reg_t get_entry_point() { return entry; }
// indicates that the initial program load can skip writing this address
// range to memory, because it has already been loaded through a sideband
virtual bool is_address_preloaded(addr_t taddr, size_t len) { return false; }
// Given an address, return symbol from addr2symbol map
const char* get_symbol(uint64_t addr);
private:
void parse_arguments(int argc, char ** argv);
void register_devices();
void usage(const char * program_name);
memif_t mem;
reg_t entry;
bool writezeros;
std::vector<std::string> hargs;
std::vector<std::string> targs;
std::string sig_file;
unsigned int line_size;
addr_t sig_addr; // torture
addr_t sig_len; // torture
addr_t tohost_addr;
addr_t fromhost_addr;
int exitcode;
bool stopped;
device_list_t device_list;
syscall_t syscall_proxy;
bcd_t bcd;
std::vector<device_t*> dynamic_devices;
std::vector<std::string> payloads;
const std::vector<std::string>& target_args() { return targs; }
std::map<uint64_t, std::string> addr2symbol;
friend class memif_t;
friend class syscall_t;
};
/* Alignment guide for emulator.cc options:
-x, --long-option Description with max 80 characters --------------->\n\
+plus-arg-equivalent\n\
*/
#define HTIF_USAGE_OPTIONS \
"HOST OPTIONS\n\
-h, --help Display this help and exit\n\
+h, +help\n\
+permissive The host will ignore any unparsed options up until\n\
+permissive-off (Only needed for VCS)\n\
+permissive-off Stop ignoring options. This is mandatory if using\n\
+permissive (Only needed for VCS)\n\
--rfb=DISPLAY Add new remote frame buffer on display DISPLAY\n\
+rfb=DISPLAY to be accessible on 5900 + DISPLAY (default = 0)\n\
--signature=FILE Write torture test signature to FILE\n\
+signature=FILE\n\
--signature-granularity=VAL Size of each line in signature.\n\
+signature-granularity=VAL\n\
--chroot=PATH Use PATH as location of syscall-servicing binaries\n\
+chroot=PATH\n\
--payload=PATH Load PATH memory as an additional ELF payload\n\
+payload=PATH\n\
\n\
HOST OPTIONS (currently unsupported)\n\
--disk=DISK Add DISK device. Use a ramdisk since this isn't\n\
+disk=DISK supported\n\
\n\
TARGET (RISC-V BINARY) OPTIONS\n\
These are the options passed to the program executing on the emulated RISC-V\n\
microprocessor.\n"
#define HTIF_LONG_OPTIONS_OPTIND 1024
#define HTIF_LONG_OPTIONS \
{"help", no_argument, 0, 'h' }, \
{"rfb", optional_argument, 0, HTIF_LONG_OPTIONS_OPTIND }, \
{"disk", required_argument, 0, HTIF_LONG_OPTIONS_OPTIND + 1 }, \
{"signature", required_argument, 0, HTIF_LONG_OPTIONS_OPTIND + 2 }, \
{"chroot", required_argument, 0, HTIF_LONG_OPTIONS_OPTIND + 3 }, \
{"payload", required_argument, 0, HTIF_LONG_OPTIONS_OPTIND + 4 }, \
{"signature-granularity", optional_argument, 0, HTIF_LONG_OPTIONS_OPTIND + 5 }, \
{0, 0, 0, 0}
#endif // __HTIF_H
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