run works now

risc/run.py

@@ -7,14 +7,26 @@ from unicorn.mips_const import *
 
 mu = Uc(UC_ARCH_MIPS, UC_MODE_32 + UC_MODE_BIG_ENDIAN)
 
+def hook_interrupt(uc, intno, user_data):
+  print("interrupt", intno)
+  raise Exception
+
 cnt = 0
 def hook_code(uc, address, size, user_data):
   global cnt
   cnt += 1
-  if cnt == 2000:
-    raise Exception("too many instructions")
+  dat = mu.mem_read(address, size)
+  if dat == "\x0c\x00\x00\x00" or dat == "\x00\x00\x00\x0c":
+    raise Exception("syscall")
+  
+  #if cnt == 2000:
+  #  raise Exception("too many instructions")
   try:
     print(">>> Tracing instruction at 0x%x, instruction size = %u" % (address, size))
+    jj = []
+    for i in range(16):
+      jj += "r%d: %x " % (i, uc.reg_read(i))
+    print(''.join(jj))
     #print('    code hook: pc=%08x sp=%08x' % (
     #  uc.reg_read(UC_MIPS_REG_PC),
     #  uc.reg_read(UC_MIPS_REG_SP)
@@ -29,21 +41,27 @@ elf.seek(0)
 #rte = data.find(b"\x08\x02\x2c\x95")
 #print(hex(rte))
 
+SIZE = 16*1024*1024
+mu.mem_map(0, SIZE)
+
 elffile = ELFFile(elf)
-#for seg in elffile.iter_segments():
-#  print(seg.header, dir(seg.header))
+for seg in elffile.iter_segments():
+  print(seg.header, hex(seg.header.p_vaddr))
+  mu.mem_write(seg.header.p_vaddr, seg.data())
+
 entry = elffile.header.e_entry
 print("entrypoint: %x" % entry)
 
 
-SIZE = 16*1024*1024
-
-mu.mem_map(0, SIZE)
-mu.mem_write(0x10000, data)
+#mu.mem_write(0x10000, data)
 
 hexdump(mu.mem_read(entry, 0x10))
 
-mu.reg_write(UC_MIPS_REG_SP, SIZE-4)
+mu.reg_write(UC_MIPS_REG_SP, SIZE-0x1000)
 
+#mu.hook_add(UC_HOOK_BLOCK, hook_code, user_data=mu)
 mu.hook_add(UC_HOOK_CODE, hook_code, user_data=mu)
+
+mu.hook_add(UC_HOOK_INTR, hook_interrupt)
+#mu.hook_add(UC_HOOK_INSN, hook_interrupt, None, 1, 0, 0x0c000000)
 mu.emu_start(entry, SIZE)