Sounds very useful. Are you planning to add it to the LLDB repository?
On Fri, Jan 4, 2019 at 10:56 AM Greg Clayton <clayb...@gmail.com> wrote: > > > On Jan 4, 2019, at 9:45 AM, Leonard Mosescu <mose...@google.com> wrote: > > I have a minidump generator if you need me to make any specific minidump >> files for you. >> > > Maybe not in this case, but it seems an interesting idea. What are the > capabilities of this generator tool? > > > I can generate threads contexts, any of the textual directory streams, > memory regions (32 and 64), module lists, and more. > > Example code from my python "minidump" module that shows generation of a > minidump. Not all of this goes together (example code for ARM and ARM64), > but it shows what you can easily do: > > system_info = minidump.SystemInfo( > ProcessorArchitecture=minidump.PROCESSOR_ARCHITECTURE_ARM64, > PlatformId=minidump.VER_PLATFORM_LINUX, > CSDVersion=minidump.String('15E216')) > > md = minidump.Generator(system_info, ProcessId=123) > > x = [] > v = [] > for i in range(32): > x.append(i+1 | i+2 << 32 | i+3 << 48) > for i in range(32): > for j in range(16): > v.append(i+j) > > thread = minidump.Thread(ThreadId=0x1000, > Registers=minidump.ThreadContext_ARM64( > x=x, pc=0x1000, cpsr=0x11223344, > fpsr=0x55667788, fpcr=0x99AABBCC, v=v)) > > system_info = minidump.SystemInfo( > ProcessorArchitecture=minidump.PROCESSOR_ARCHITECTURE_ARM, > PlatformId=minidump.VER_PLATFORM_MACOSX, > CSDVersion=minidump.String('ABC123')) > > md = minidump.Generator(system_info, ProcessId=123) > > r = [] > d = [] > extra = [] > for i in range(1, 17): > r.append(i) > for i in range(1, 33): > d.append(i | i << 8 | i << 32 | i << 48) > for i in range(8): > extra.append(i | i << 16) > > thread = minidump.Thread(ThreadId=0x1000, > Registers=minidump.ThreadContext_ARM( > r=r, cpsr=0x11223344, > fpscr=0x55667788AABBCCDD, d=d, > extra=extra)) > md.add_thread(thread) > md.add_thread(minidump.Thread(ThreadId=0x55667788)) > > md.add_module(minidump.Module(BaseOfImage=0x10000, > SizeOfImage=0x2000, > CheckSum=0, > TimeDateStamp=0, > ModuleName="/tmp/b", > VersionInfo=None, > CvRecord=None, > MiscRecord=None, > Reserved0=0, > Reserved1=0)) > > md.add_module(minidump.Module(BaseOfImage=0x2000, > SizeOfImage=0x1000, > CheckSum=0, > TimeDateStamp=0, > ModuleName="/tmp/a", > VersionInfo=None, > CvRecord=None, > MiscRecord=None, > Reserved0=0, > Reserved1=0)) > > md.add_module(minidump.Module(BaseOfImage=0x1000, > SizeOfImage=0x1000, > CheckSum=0, > TimeDateStamp=0, > ModuleName="/tmp/b", > VersionInfo=None, > CvRecord=None, > MiscRecord=None, > Reserved0=0, > Reserved1=0)) > > > md.add_module(minidump.Module(BaseOfImage=0x5000, > SizeOfImage=0x3000, > CheckSum=0, > TimeDateStamp=0, > ModuleName="/tmp/b", > VersionInfo=None, > CvRecord=None, > MiscRecord=None, > Reserved0=0, > Reserved1=0)) > md.add_memory(minidump.MemoryDescriptor(StartOfMemoryRange=0x8000, > Bytes='Hello world!')) > md.add_memory(minidump.MemoryDescriptor(StartOfMemoryRange=0x8010, > Bytes='Goodbye moon...')) > md.add_memory64(minidump.MemoryDescriptor64(StartOfMemoryRange=0x1000, > Bytes='1' * 16)) > md.add_memory64(minidump.MemoryDescriptor64(StartOfMemoryRange=0x2000, > Bytes='3' * 32)) > > md.add_memory(minidump.MemoryDescriptor(StartOfMemoryRange=0x1000, > Bytes='1' * 16)) > md.add_memory(minidump.MemoryDescriptor(StartOfMemoryRange=0x2000, > Bytes='3' * 32)) > > maps = '''400d9000-400db000 r-xp 00000000 b3:04 227 > /system/bin/app_process > 400db000-400dc000 r--p 00001000 b3:04 227 /system/bin/app_process > 400dc000-400dd000 rw-p 00000000 00:00 0 > ''' > md.add_stream_as_string(minidump.BreakpadLinuxMaps, maps) > pad = True > addr_size = 4 > md.save("/tmp/minidump.dmp", addr_size, pad) > > > >
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