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llvm-project/lldb/test/tools/lldb-mi/variable/TestMiVar.py
Siva Chandra e6303cc3a1 [TestMiVar] Enable one of the tests for GCC. 
Summary:
The "internal" name of vars is different between clang and GCC. All this
change does is to use a regex instead of the hardcoded internal name.

Test Plan: dotest.py -C <clang|gcc> -p TestMiVar

Reviewers: ki.stfu

Reviewed By: ki.stfu

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D9128

llvm-svn: 236024
2015-04-28 19:21:57 +00:00

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"""
Test lldb-mi -var-xxx commands.
"""
import lldbmi_testcase
from lldbtest import *
import unittest2
class MiVarTestCase(lldbmi_testcase.MiTestCaseBase):
mydir = TestBase.compute_mydir(__file__)
@lldbmi_test
@expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
@skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
def test_lldbmi_eval(self):
"""Test that 'lldb-mi --interpreter' works for evaluating."""
self.spawnLldbMi(args = None)
# Load executable
self.runCmd("-file-exec-and-symbols %s" % self.myexe)
self.expect("\^done")
# Run to program return
line = line_number('main.cpp', '// BP_return')
self.runCmd("-break-insert main.cpp:%d" % line)
self.expect("\^done,bkpt={number=\"1\"")
self.runCmd("-exec-run")
self.expect("\^running")
self.expect("\*stopped,reason=\"breakpoint-hit\"")
# Print non-existant variable
self.runCmd("-var-create var1 * undef")
#self.expect("\^error") #FIXME: shows undef as {...}
self.runCmd("-data-evaluate-expression undef")
self.expect("\^error,msg=\"Could not evaluate expression\"")
# Print global "g_MyVar", modify, delete and create again
self.runCmd("-data-evaluate-expression g_MyVar")
self.expect("\^done,value=\"3\"")
self.runCmd("-var-create var2 * g_MyVar")
self.expect("\^done,name=\"var2\",numchild=\"0\",value=\"3\",type=\"int\",thread-id=\"1\",has_more=\"0\"")
self.runCmd("-var-evaluate-expression var2")
self.expect("\^done,value=\"3\"")
self.runCmd("-var-show-attributes var2")
self.expect("\^done,status=\"editable\"")
self.runCmd("-var-list-children var2")
self.expect("\^done,numchild=\"0\"")
self.runCmd("-data-evaluate-expression \"g_MyVar=30\"")
self.expect("\^done,value=\"30\"")
self.runCmd("-var-update --all-values var2")
#self.expect("\^done,changelist=\[\{name=\"var2\",value=\"30\",in_scope=\"true\",type_changed=\"false\",has_more=\"0\"\}\]") #FIXME -var-update doesn't work
self.runCmd("-var-delete var2")
self.expect("\^done")
self.runCmd("-var-create var2 * g_MyVar")
self.expect("\^done,name=\"var2\",numchild=\"0\",value=\"30\",type=\"int\",thread-id=\"1\",has_more=\"0\"")
# Print static "s_MyVar", modify, delete and create again
self.runCmd("-data-evaluate-expression s_MyVar")
self.expect("\^done,value=\"30\"")
self.runCmd("-var-create var3 * s_MyVar")
self.expect("\^done,name=\"var3\",numchild=\"0\",value=\"30\",type=\"int\",thread-id=\"1\",has_more=\"0\"")
self.runCmd("-var-evaluate-expression var3")
self.expect("\^done,value=\"30\"")
self.runCmd("-var-show-attributes var3")
self.expect("\^done,status=\"editable\"")
self.runCmd("-var-list-children var3")
self.expect("\^done,numchild=\"0\"")
self.runCmd("-data-evaluate-expression \"s_MyVar=3\"")
self.expect("\^done,value=\"3\"")
self.runCmd("-var-update --all-values var3")
#self.expect("\^done,changelist=\[\{name=\"var3\",value=\"3\",in_scope=\"true\",type_changed=\"false\",has_more=\"0\"\}\]") #FIXME -var-update doesn't work
self.runCmd("-var-delete var3")
self.expect("\^done")
self.runCmd("-var-create var3 * s_MyVar")
self.expect("\^done,name=\"var3\",numchild=\"0\",value=\"3\",type=\"int\",thread-id=\"1\",has_more=\"0\"")
# Print local "b", modify, delete and create again
self.runCmd("-data-evaluate-expression b")
self.expect("\^done,value=\"20\"")
self.runCmd("-var-create var4 * b")
self.expect("\^done,name=\"var4\",numchild=\"0\",value=\"20\",type=\"int\",thread-id=\"1\",has_more=\"0\"")
self.runCmd("-var-evaluate-expression var4")
self.expect("\^done,value=\"20\"")
self.runCmd("-var-show-attributes var4")
self.expect("\^done,status=\"editable\"")
self.runCmd("-var-list-children var4")
self.expect("\^done,numchild=\"0\"")
self.runCmd("-data-evaluate-expression \"b=2\"")
self.expect("\^done,value=\"2\"")
self.runCmd("-var-update --all-values var4")
#self.expect("\^done,changelist=\[\{name=\"var4\",value=\"2\",in_scope=\"true\",type_changed=\"false\",has_more=\"0\"\}\]") #FIXME -var-update doesn't work
self.runCmd("-var-delete var4")
self.expect("\^done")
self.runCmd("-var-create var4 * b")
self.expect("\^done,name=\"var4\",numchild=\"0\",value=\"2\",type=\"int\",thread-id=\"1\",has_more=\"0\"")
# Print temp "a + b"
self.runCmd("-data-evaluate-expression \"a + b\"")
self.expect("\^done,value=\"12\"")
self.runCmd("-var-create var5 * \"a + b\"")
self.expect("\^done,name=\"var5\",numchild=\"0\",value=\"12\",type=\"int\",thread-id=\"1\",has_more=\"0\"")
self.runCmd("-var-evaluate-expression var5")
self.expect("\^done,value=\"12\"")
self.runCmd("-var-show-attributes var5")
self.expect("\^done,status=\"editable\"") #FIXME editable or not?
self.runCmd("-var-list-children var5")
self.expect("\^done,numchild=\"0\"")
# Print argument "argv[0]"
self.runCmd("-data-evaluate-expression \"argv[0]\"")
self.expect("\^done,value=\"0x[0-9a-f]+\"")
self.runCmd("-var-create var6 * \"argv[0]\"")
self.expect("\^done,name=\"var6\",numchild=\"1\",value=\"0x[0-9a-f]+ \\\\\\\".*?%s\\\\\\\"\",type=\"const char \*\",thread-id=\"1\",has_more=\"0\"" % self.myexe)
self.runCmd("-var-evaluate-expression var6")
self.expect("\^done,value=\"0x[0-9a-f]+ \\\\\\\".*?%s\\\\\\\"\"" % self.myexe)
self.runCmd("-var-show-attributes var6")
self.expect("\^done,status=\"editable\"")
self.runCmd("-var-list-children --all-values var6")
# FIXME: The name below is not correct. It should be "var.*argv[0]".
self.expect("\^done,numchild=\"1\",children=\[child=\{name=\"var6\.\*\$[0-9]+\",exp=\"\*\$[0-9]+\",numchild=\"0\",type=\"const char\",thread-id=\"4294967295\",value=\"47 '/'\",has_more=\"0\"\}\]") #FIXME -var-list-children shows invalid thread-id
@lldbmi_test
@expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
@skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
@skipIfLinux # llvm.org/pr22841: lldb-mi tests fail on all Linux buildbots
def test_lldbmi_var_update(self):
"""Test that 'lldb-mi --interpreter' works for -var-update."""
self.spawnLldbMi(args = None)
# Load executable
self.runCmd("-file-exec-and-symbols %s" % self.myexe)
self.expect("\^done")
# Run to BP_var_update_test_init
line = line_number('main.cpp', '// BP_var_update_test_init')
self.runCmd("-break-insert main.cpp:%d" % line)
self.expect("\^done,bkpt={number=\"1\"")
self.runCmd("-exec-run")
self.expect("\^running")
self.expect("\*stopped,reason=\"breakpoint-hit\"")
# Setup variables
self.runCmd("-var-create var_l * l")
self.expect("\^done,name=\"var_l\",numchild=\"0\",value=\"1\",type=\"long\",thread-id=\"1\",has_more=\"0\"")
self.runCmd("-var-create var_complx * complx")
self.expect("\^done,name=\"var_complx\",numchild=\"3\",value=\"\{\.\.\.\}\",type=\"complex_type\",thread-id=\"1\",has_more=\"0\"")
self.runCmd("-var-create var_complx_array * complx_array")
self.expect("\^done,name=\"var_complx_array\",numchild=\"2\",value=\"\[2\]\",type=\"complex_type \[2\]\",thread-id=\"1\",has_more=\"0\"")
# Go to BP_var_update_test_l
line = line_number('main.cpp', '// BP_var_update_test_l')
self.runCmd("-break-insert main.cpp:%d" % line)
self.expect("\^done,bkpt={number=\"2\"")
self.runCmd("-exec-continue")
self.expect("\^running")
self.expect("\*stopped,reason=\"breakpoint-hit\"")
# Test that var_l was updated
self.runCmd("-var-update --all-values var_l")
self.expect("\^done,changelist=\[\{name=\"var_l\",value=\"0\",in_scope=\"true\",type_changed=\"false\",has_more=\"0\"\}\]")
# Go to BP_var_update_test_complx
line = line_number('main.cpp', '// BP_var_update_test_complx')
self.runCmd("-break-insert main.cpp:%d" % line)
self.expect("\^done,bkpt={number=\"3\"")
self.runCmd("-exec-continue")
self.expect("\^running")
self.expect("\*stopped,reason=\"breakpoint-hit\"")
# Test that var_complx was updated
self.runCmd("-var-update --all-values var_complx")
self.expect("\^done,changelist=\[\{name=\"var_complx\",value=\"\{\.\.\.\}\",in_scope=\"true\",type_changed=\"false\",has_more=\"0\"\}\]")
# Go to BP_var_update_test_complx_array
line = line_number('main.cpp', '// BP_var_update_test_complx_array')
self.runCmd("-break-insert main.cpp:%d" % line)
self.expect("\^done,bkpt={number=\"4\"")
self.runCmd("-exec-continue")
self.expect("\^running")
self.expect("\*stopped,reason=\"breakpoint-hit\"")
# Test that var_complex_array was updated
self.runCmd("-var-update --all-values var_complx_array")
self.expect("\^done,changelist=\[\{name=\"var_complx_array\",value=\"\[2\]\",in_scope=\"true\",type_changed=\"false\",has_more=\"0\"\}\]")
@lldbmi_test
@expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
@skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
def test_lldbmi_var_create_register(self):
"""Test that 'lldb-mi --interpreter' works for -var-create $regname."""
self.spawnLldbMi(args = None)
# Load executable
self.runCmd("-file-exec-and-symbols %s" % self.myexe)
self.expect("\^done")
# Run to main
self.runCmd("-break-insert -f main")
self.expect("\^done,bkpt={number=\"1\"")
self.runCmd("-exec-run")
self.expect("\^running")
self.expect("\*stopped,reason=\"breakpoint-hit\"")
# Find name of register 0
self.runCmd("-data-list-register-names 0")
self.expect("\^done,register-names=\[\".+?\"\]")
register_name = self.child.after.split("\"")[1]
# Create variable for register 0
# Note that message is different in Darwin and Linux:
# Darwin: "^done,name=\"var_reg\",numchild=\"0\",value=\"0x[0-9a-f]+\",type=\"unsigned long\",thread-id=\"1\",has_more=\"0\"
# Linux: "^done,name=\"var_reg\",numchild=\"0\",value=\"0x[0-9a-f]+\",type=\"unsigned int\",thread-id=\"1\",has_more=\"0\"
self.runCmd("-var-create var_reg * $%s" % register_name)
self.expect("\^done,name=\"var_reg\",numchild=\"0\",value=\"0x[0-9a-f]+\",type=\"unsigned (long|int)\",thread-id=\"1\",has_more=\"0\"")
# Assign value to variable
self.runCmd("-var-assign var_reg \"6\"")
#FIXME: the output has different format for 32bit and 64bit values
self.expect("\^done,value=\"0x0*?6\"")
# Assert register 0 updated
self.runCmd("-data-list-register-values d 0")
self.expect("\^done,register-values=\[{number=\"0\",value=\"6\"")
if __name__ == '__main__':
unittest2.main()
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