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Provide a SBFrame.register/.reg helper on the Python side of SBFrame to vend a flattened view of registers 

Our actual view of registers is a set of register sets, each one of which contains a subset of the actual registers
This makes trivial scripting operations tedious ("I just want to read r7!")

This helper allows things like: print lldb.frame.reg["r7"]

Fixes rdar://19185662

llvm-svn: 224275
This commit is contained in:
Enrico Granata 2014-12-15 21:30:36 +00:00
parent acbed5e530
commit a6a1d5a623
1 changed files with 24 additions and 0 deletions
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24
lldb/scripts/Python/interface/SBFrame.i
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@ -276,6 +276,24 @@ public:
a value that represents the variable expression path'''
return self.GetValueForVariablePath(var_expr_path)
def get_registers_access(self):
class registers_access(object):
'''A helper object that exposes a flattened view of registers, masking away the notion of register sets for easy scripting.'''
def __init__(self, regs):
self.regs = regs
def __getitem__(self, key):
if type(key) is str:
for i in range(0,len(self.regs)):
rs = self.regs[i]
for j in range (0,rs.num_children):
reg = rs.GetChildAtIndex(j)
if reg.name == key: return reg
else:
return lldb.SBValue()
return registers_access(self.registers)
__swig_getmethods__["pc"] = GetPC
__swig_setmethods__["pc"] = SetPC
if _newclass: pc = property(GetPC, SetPC)
@ -346,6 +364,12 @@ public:
__swig_getmethods__["regs"] = GetRegisters
if _newclass: regs = property(GetRegisters, None, doc='''A read only property that returns a list() that contains a collection of lldb.SBValue objects that represent the CPU registers for this stack frame.''')
__swig_getmethods__["register"] = get_registers_access
if _newclass: register = property(get_registers_access, None, doc='''A read only property that returns an helper object providing a flattened indexable view of the CPU registers for this stack frame.''')
__swig_getmethods__["reg"] = get_registers_access
if _newclass: reg = property(get_registers_access, None, doc='''A read only property that returns an helper object providing a flattened indexable view of the CPU registers for this stack frame''')
%}
};