162 lines
3.4 KiB
C++
162 lines
3.4 KiB
C++
#include "shell.h"
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#include "parser.h"
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#include "commands.h"
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#include "errors.h"
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#include <fmt/core.h>
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#include <fxos/disassembly.h>
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#include <fxos/util.h>
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#include <fxos/log.h>
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#include <fxos/disasm-passes/cfg.h>
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#include <fxos/disasm-passes/pcrel.h>
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#include <fxos/disasm-passes/syscall.h>
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#include <fxos/disasm-passes/print.h>
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static void disassemble(Session &session, Disassembly &disasm,
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std::vector<std::string> const &passes, uint32_t address)
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{
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for(auto pass: passes)
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{
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auto start = timer_start();
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log(LOG "Running pass %s...\\", pass);
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if(pass == "cfg")
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{
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CfgPass p(disasm);
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p.run(address);
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}
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else if(pass == "pcrel")
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{
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PcrelPass p(disasm);
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p.run();
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}
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else if(pass == "syscall")
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{
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OS *os = session.current_space->os_analysis();
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if(os) {
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SyscallPass p(disasm, os);
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p.run();
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}
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}
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else if(pass == "print")
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{
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PrintPass p(disasm);
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p.promote_pcjump_loc = PrintPass::Promote;
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p.promote_pcrel_loc = PrintPass::Promote;
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p.promote_pcrel_value = PrintPass::Promote;
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p.promote_syscall = PrintPass::Promote;
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p.promote_syscallname = PrintPass::Append;
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p.promote_symbol = PrintPass::Append;
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p.promote_pcaddr_loc = PrintPass::Promote;
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p.run();
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}
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log(LOG "%s", timer_format(timer_end(start)));
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}
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}
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//---
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// d
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//---
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static uint32_t parse_d(Session &session, Parser &parser)
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{
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uint32_t address = session.current_space->cursor;
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if(!parser.at_end())
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address = parser.expr(session.current_space);
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parser.end();
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return address;
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}
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void _d(Session &session, uint32_t address)
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{
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session.require_vspace();
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FxOS::Disassembly disasm(*session.current_space);
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if(address & 1) {
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fmt::print("address 0x{:08x} is odd, starting at 0x{:08x}\n",
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address, address+1);
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address++;
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}
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disassemble(session, disasm,
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{ "cfg", "pcrel", "constprop", "syscall", "print" }, address);
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}
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//---
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// dr
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//---
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static Range parse_dr(Session &session, Parser &parser)
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{
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Range range = parser.range(session.current_space);
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parser.end();
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return range;
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}
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void _dr(Session &session, Range range)
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{
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session.require_vspace();
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FxOS::Disassembly disasm(*session.current_space);
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if(range.start == range.end) return;
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if(range.start & 1) {
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fmt::print("address 0x{:08x} is odd, starting at 0x{:08x}\n",
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range.start, range.start+1);
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range.start++;
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}
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if(range.end & 1) {
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fmt::print("address 0x{:08x} is odd, ending at 0x{:08x}\n",
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range.end, range.end-1);
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range.end--;
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}
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/* Load the block into memory */
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for(uint32_t pc = range.start; pc < range.end; pc += 2)
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disasm.readins(pc);
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disassemble(session, disasm, { "pcrel", "constprop", "syscall", "print" },
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-1);
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}
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//---
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// dtl
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//---
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static std::string parse_dtl(Session &session, Parser &parser)
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{
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std::string filename = parser.str();
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parser.end();
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return session.file(filename);
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}
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void _dtl(Session &, std::string filename)
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{
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Buffer buf(filename);
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FxOS::load_instructions(buf);
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}
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//---
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// Command registration
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//---
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[[gnu::constructor]] static void _(void)
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{
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shell_register_command("d",
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[](Session &s, Parser &p){ _d(s, parse_d(s, p)); },
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[](Session &s, Parser &p){ parse_d(s, p); });
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shell_register_command("dr",
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[](Session &s, Parser &p){ _dr(s, parse_dr(s, p)); },
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[](Session &s, Parser &p){ parse_dr(s, p); });
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shell_register_command("dtl",
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[](Session &s, Parser &p){ _dtl(s, parse_dtl(s, p)); },
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[](Session &s, Parser &p){ parse_dtl(s, p); });
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}
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