From 4b42b4be5268a0d2d39e0637e7a7c9247041d650 Mon Sep 17 00:00:00 2001 From: Ryan Hileman Date: Sat, 26 Sep 2015 12:48:25 -0700 Subject: [PATCH] add regress for #155 --- tests/regress/mips_single_step_sp.py | 39 ++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 tests/regress/mips_single_step_sp.py diff --git a/tests/regress/mips_single_step_sp.py b/tests/regress/mips_single_step_sp.py new file mode 100644 index 00000000..55d4d26b --- /dev/null +++ b/tests/regress/mips_single_step_sp.py @@ -0,0 +1,39 @@ +from unicorn import * +from unicorn.mips_const import * + +def code_hook(uc, addr, size, user_data): + print 'code hook: pc=%08x sp=%08x' % (addr, uc.reg_read(UC_MIPS_REG_SP)) + +def run(step=False): + addr = 0x4010dc + + code = ( + 'f8ff0124' # addiu $at, $zero, -8 + '24e8a103' # and $sp, $sp, $at + '09f82003' # jalr $t9 + 'e8ffbd23' # addi $sp, $sp, -0x18 + 'b8ffbd27' # addiu $sp, $sp, -0x48 + '00000000' # nop + ).decode('hex') + + uc = Uc(UC_ARCH_MIPS, UC_MODE_MIPS32 + UC_MODE_LITTLE_ENDIAN) + if step: + uc.hook_add(UC_HOOK_CODE, code_hook) + + uc.reg_write(UC_MIPS_REG_SP, 0x60800000) + uc.reg_write(UC_MIPS_REG_T9, addr + len(code) - 8) + + print 'sp =', hex(uc.reg_read(UC_MIPS_REG_SP)) + print 'at =', hex(uc.reg_read(UC_MIPS_REG_AT)) + print ' (single step: %s)' % (str(step)) + + uc.mem_map(addr & ~(0x1000 - 1), 0x2000) + uc.mem_write(addr, code) + uc.emu_start(addr, addr + len(code)) + + print 'sp =', hex(uc.reg_read(UC_MIPS_REG_SP)) + print 'at =', hex(uc.reg_read(UC_MIPS_REG_AT)) + print + +run(step=False) +run(step=True)