[Lldb-commits] [lldb] r291549 - [LLDB][MIPS] Fix TestLldbGdbServer failure for MIPS
Nitesh Jain via lldb-commits
lldb-commits at lists.llvm.org
Tue Jan 10 00:20:02 PST 2017
Author: nitesh.jain
Date: Tue Jan 10 02:20:01 2017
New Revision: 291549
URL: http://llvm.org/viewvc/llvm-project?rev=291549&view=rev
Log:
[LLDB][MIPS] Fix TestLldbGdbServer failure for MIPS
Reviewers: labath, clayborg
Subscribers: jaydeep, bhushan, lldb-commits, slthakur
Differential Revision: https://reviews.llvm.org/D27088
Added:
lldb/trunk/Python/
lldb/trunk/Python/lldbsuite/
lldb/trunk/Python/lldbsuite/test/
lldb/trunk/Python/lldbsuite/test/lldbdwarf.py
Modified:
lldb/trunk/packages/Python/lldbsuite/test/tools/lldb-server/TestLldbGdbServer.py
Added: lldb/trunk/Python/lldbsuite/test/lldbdwarf.py
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/Python/lldbsuite/test/lldbdwarf.py?rev=291549&view=auto
==============================================================================
--- lldb/trunk/Python/lldbsuite/test/lldbdwarf.py (added)
+++ lldb/trunk/Python/lldbsuite/test/lldbdwarf.py Tue Jan 10 02:20:01 2017
@@ -0,0 +1,256 @@
+""" This module implement Dwarf expression opcode parser. """
+
+import lldb
+
+# DWARF Expression operators.
+DW_OP_addr = 0x03
+DW_OP_deref = 0x06
+DW_OP_const1u = 0x08
+DW_OP_const1s = 0x09
+DW_OP_const2u = 0x0A
+DW_OP_const2s = 0x0B
+DW_OP_const4u = 0x0C
+DW_OP_const4s = 0x0D
+DW_OP_const8u = 0x0E
+DW_OP_const8s = 0x0F
+DW_OP_constu = 0x10
+DW_OP_consts = 0x11
+DW_OP_dup = 0x12
+DW_OP_drop = 0x13
+DW_OP_over = 0x14
+DW_OP_pick = 0x15
+DW_OP_swap = 0x16
+DW_OP_rot = 0x17
+DW_OP_xderef = 0x18
+DW_OP_abs = 0x19
+DW_OP_and = 0x1A
+DW_OP_div = 0x1B
+DW_OP_minus = 0x1C
+DW_OP_mod = 0x1D
+DW_OP_mul = 0x1E
+DW_OP_neg = 0x1F
+DW_OP_not = 0x20
+DW_OP_or = 0x21
+DW_OP_plus = 0x22
+DW_OP_plus_uconst = 0x23
+DW_OP_shl = 0x24
+DW_OP_shr = 0x25
+DW_OP_shra = 0x26
+DW_OP_xor = 0x27
+DW_OP_skip = 0x2F
+DW_OP_bra = 0x28
+DW_OP_eq = 0x29
+DW_OP_ge = 0x2A
+DW_OP_gt = 0x2B
+DW_OP_le = 0x2C
+DW_OP_lt = 0x2D
+DW_OP_ne = 0x2E
+DW_OP_lit0 = 0x30
+DW_OP_lit1 = 0x31
+DW_OP_lit2 = 0x32
+DW_OP_lit3 = 0x33
+DW_OP_lit4 = 0x34
+DW_OP_lit5 = 0x35
+DW_OP_lit6 = 0x36
+DW_OP_lit7 = 0x37
+DW_OP_lit8 = 0x38
+DW_OP_lit9 = 0x39
+DW_OP_lit10 = 0x3A
+DW_OP_lit11 = 0x3B
+DW_OP_lit12 = 0x3C
+DW_OP_lit13 = 0x3D
+DW_OP_lit14 = 0x3E
+DW_OP_lit15 = 0x3F
+DW_OP_lit16 = 0x40
+DW_OP_lit17 = 0x41
+DW_OP_lit18 = 0x42
+DW_OP_lit19 = 0x43
+DW_OP_lit20 = 0x44
+DW_OP_lit21 = 0x45
+DW_OP_lit22 = 0x46
+DW_OP_lit23 = 0x47
+DW_OP_lit24 = 0x48
+DW_OP_lit25 = 0x49
+DW_OP_lit26 = 0x4A
+DW_OP_lit27 = 0x4B
+DW_OP_lit28 = 0x4C
+DW_OP_lit29 = 0x4D
+DW_OP_lit30 = 0x4E
+DW_OP_lit31 = 0x4F
+DW_OP_reg0 = 0x50
+DW_OP_reg1 = 0x51
+DW_OP_reg2 = 0x52
+DW_OP_reg3 = 0x53
+DW_OP_reg4 = 0x54
+DW_OP_reg5 = 0x55
+DW_OP_reg6 = 0x56
+DW_OP_reg7 = 0x57
+DW_OP_reg8 = 0x58
+DW_OP_reg9 = 0x59
+DW_OP_reg10 = 0x5A
+DW_OP_reg11 = 0x5B
+DW_OP_reg12 = 0x5C
+DW_OP_reg13 = 0x5D
+DW_OP_reg14 = 0x5E
+DW_OP_reg15 = 0x5F
+DW_OP_reg16 = 0x60
+DW_OP_reg17 = 0x61
+DW_OP_reg18 = 0x62
+DW_OP_reg19 = 0x63
+DW_OP_reg20 = 0x64
+DW_OP_reg21 = 0x65
+DW_OP_reg22 = 0x66
+DW_OP_reg23 = 0x67
+DW_OP_reg24 = 0x68
+DW_OP_reg25 = 0x69
+DW_OP_reg26 = 0x6A
+DW_OP_reg27 = 0x6B
+DW_OP_reg28 = 0x6C
+DW_OP_reg29 = 0x6D
+DW_OP_reg30 = 0x6E
+DW_OP_reg31 = 0x6F
+DW_OP_breg0 = 0x70
+DW_OP_breg1 = 0x71
+DW_OP_breg2 = 0x72
+DW_OP_breg3 = 0x73
+DW_OP_breg4 = 0x74
+DW_OP_breg5 = 0x75
+DW_OP_breg6 = 0x76
+DW_OP_breg7 = 0x77
+DW_OP_breg8 = 0x78
+DW_OP_breg9 = 0x79
+DW_OP_breg10 = 0x7A
+DW_OP_breg11 = 0x7B
+DW_OP_breg12 = 0x7C
+DW_OP_breg13 = 0x7D
+DW_OP_breg14 = 0x7E
+DW_OP_breg15 = 0x7F
+DW_OP_breg16 = 0x80
+DW_OP_breg17 = 0x81
+DW_OP_breg18 = 0x82
+DW_OP_breg19 = 0x83
+DW_OP_breg20 = 0x84
+DW_OP_breg21 = 0x85
+DW_OP_breg22 = 0x86
+DW_OP_breg23 = 0x87
+DW_OP_breg24 = 0x88
+DW_OP_breg25 = 0x89
+DW_OP_breg26 = 0x8A
+DW_OP_breg27 = 0x8B
+DW_OP_breg28 = 0x8C
+DW_OP_breg29 = 0x8D
+DW_OP_breg30 = 0x8E
+DW_OP_breg31 = 0x8F
+DW_OP_regx = 0x90
+DW_OP_fbreg = 0x91
+DW_OP_bregx = 0x92
+DW_OP_piece = 0x93
+DW_OP_deref_size = 0x94
+DW_OP_xderef_size = 0x95
+DW_OP_nop = 0x96
+DW_OP_push_object_address = 0x97
+DW_OP_call2 = 0x98
+DW_OP_call4 = 0x99
+DW_OP_call_ref = 0x9A
+DW_OP_form_tls_address = 0x9B
+DW_OP_call_frame_cfa = 0x9C
+DW_OP_bit_piece = 0x9D
+DW_OP_implicit_value = 0x9E
+DW_OP_stack_value = 0x9F
+DW_OP_lo_user = 0xE0
+DW_OP_GNU_push_tls_address = 0xE0
+DW_OP_APPLE_uninit = 0xF0
+DW_OP_hi_user = 0xFF
+
+
+class DwarfOpcodeParser(object):
+
+ def updateRegInfoBitsize(self, reg_info, byte_order):
+ """ Update the regInfo bit size. """
+
+ # Evaluate Dwarf Expression
+ expr_result = self.evaluateDwarfExpression(reg_info["dynamic_size_dwarf_expr_bytes"],
+ byte_order)
+
+ if expr_result == 0:
+ reg_info["bitsize"] = 32
+ elif expr_result == 1:
+ reg_info["bitsize"] = 64
+
+
+ def evaluateDwarfExpression(self, dwarf_opcode, byte_order):
+ """Evaluate Dwarf Expression. """
+
+ dwarf_opcode = [dwarf_opcode[i:i+2] for i in range(0,len(dwarf_opcode),2)]
+ dwarf_data = []
+ for index in range(len(dwarf_opcode)):
+
+ if index < len(dwarf_opcode):
+ val = int(dwarf_opcode[index], 16)
+ else:
+ break
+
+ if val == DW_OP_regx:
+ # Read register number
+ self.assertTrue(len(dwarf_opcode) > (index + 1))
+ reg_no = int(dwarf_opcode.pop(index + 1), 16)
+
+ self.reset_test_sequence()
+ # Read register value
+ self.test_sequence.add_log_lines(
+ ["read packet: $p{0:x}#00".format(reg_no),
+ {"direction": "send", "regex": r"^\$([0-9a-fA-F]+)#",
+ "capture": {1: "p_response"}}],True)
+
+ Context = self.expect_gdbremote_sequence()
+ self.assertIsNotNone(Context)
+ p_response = Context.get("p_response")
+ self.assertIsNotNone(p_response)
+
+ if byte_order == lldb.eByteOrderLittle:
+ # In case of little endian
+ # first decode the HEX ASCII bytes and then reverse it
+ # to get actual value of SR register
+ p_response = "".join(reversed([p_response[i:i+2] for i in range(0,
+ len(p_response),2)]))
+ # Push register value
+ dwarf_data.append(int(p_response,16))
+
+ elif val == DW_OP_lit1:
+ # Push literal 1
+ dwarf_data.append(1)
+
+ elif val == DW_OP_lit26:
+ # Push literal 26
+ dwarf_data.append(26)
+
+ elif val == DW_OP_shl:
+ # left shift and push the result back
+ self.assertTrue(len(dwarf_data) > 1)
+ shift_amount = dwarf_data.pop()
+ val_to_shift = dwarf_data.pop()
+ result = val_to_shift << shift_amount
+ dwarf_data.append(result)
+
+ elif val == DW_OP_shr:
+ # Right shift and push the result back
+ self.assertTrue(len(dwarf_data) > 1)
+ shift_amount = dwarf_data.pop()
+ val_to_shift = dwarf_data.pop()
+ result = val_to_shift >> shift_amount
+ dwarf_data.append(result)
+
+ elif val == DW_OP_and:
+ # And of topmost 2 elements and push the result back
+ first_ele = dwarf_data.pop()
+ second_ele = dwarf_data.pop()
+ result = first_ele & second_ele
+ dwarf_data.append(result)
+
+ else:
+ self.assertTrue(False and "Unprocess Dwarf Opcode")
+
+ self.assertTrue(len(dwarf_data) == 1)
+ expr_result = dwarf_data.pop()
+ return expr_result
+
Modified: lldb/trunk/packages/Python/lldbsuite/test/tools/lldb-server/TestLldbGdbServer.py
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/tools/lldb-server/TestLldbGdbServer.py?rev=291549&r1=291548&r2=291549&view=diff
==============================================================================
--- lldb/trunk/packages/Python/lldbsuite/test/tools/lldb-server/TestLldbGdbServer.py (original)
+++ lldb/trunk/packages/Python/lldbsuite/test/tools/lldb-server/TestLldbGdbServer.py Tue Jan 10 02:20:01 2017
@@ -20,10 +20,11 @@ import platform
import signal
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
+from lldbsuite.test.lldbdwarf import *
from lldbsuite.test import lldbutil
-class LldbGdbServerTestCase(gdbremote_testcase.GdbRemoteTestCaseBase):
+class LldbGdbServerTestCase(gdbremote_testcase.GdbRemoteTestCaseBase, DwarfOpcodeParser):
mydir = TestBase.compute_mydir(__file__)
@@ -541,6 +542,10 @@ class LldbGdbServerTestCase(gdbremote_te
self.assertIsNotNone(reg_infos)
self.assertTrue(len(reg_infos) > 0)
+ inferior_exe_path = os.path.abspath("a.out")
+ Target = self.dbg.CreateTarget(inferior_exe_path)
+ byte_order = Target.GetByteOrder()
+
# Read value for each register.
reg_index = 0
for reg_info in reg_infos:
@@ -565,6 +570,9 @@ class LldbGdbServerTestCase(gdbremote_te
# Verify the response length.
p_response = context.get("p_response")
self.assertIsNotNone(p_response)
+
+ if "dynamic_size_dwarf_expr_bytes" in reg_info:
+ self.updateRegInfoBitsize(reg_info, byte_order)
self.assertEqual(len(p_response), 2 * int(reg_info["bitsize"]) / 8)
# Increment loop
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