lldb/test/API/commands/expression/memory-allocation/TestMemoryAllocSettings.py

   1 """
   2 Test changing setting for expression memory allocation.
   3 """
   4
   5 import lldb
   6 from lldbsuite.test.decorators import *
   7 from lldbsuite.test.lldbtest import *
   8 from lldbsuite.test import lldbutil
   9
  10
  11 class TestMemoryAllocSettings(TestBase):
  12     def test(self):
  13         """Test changing settings for expression memory allocation."""
  14         self.build()
  15         target = self.createTestTarget()
  16
  17         self.log_file = self.getBuildArtifact("log-expr.txt")
  18
  19         self.runCmd("settings set target.expr-alloc-address 0xdead0000")
  20         self.runCmd("settings set target.expr-alloc-size 10000")
  21         self.runCmd("settings set target.expr-alloc-align 0x1000")
  22
  23         self.runCmd("log enable lldb expr -f " + self.log_file)
  24         self.runCmd("expression -- int foo; &foo")
  25
  26         self.assertTrue(os.path.isfile(self.log_file))
  27         with open(self.log_file, "r") as f:
  28             log = f.read()
  29
  30         alloc0 = re.search("^.*IRMemoryMap::Malloc.+?0xdead0000.*$", log, re.MULTILINE)
  31         # Malloc adds additional bytes to allocation size, hence 10007
  32         alloc1 = re.search(
  33             "^.*IRMemoryMap::Malloc\s*?\(10007.+?0xdead1000.*$", log, re.MULTILINE
  34         )
  35         self.assertTrue(alloc0, "Couldn't find an allocation at a given address.")
  36         self.assertTrue(
  37             alloc1, "Couldn't find an allocation of a given size at a given address."
  38         )