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[RenderScript] Hook kernel invocation. 

This patch adds a hook to track kernel invocations and to track all script and allocation objects used.

llvm-svn: 257772
This commit is contained in:
Aidan Dodds 2016-01-14 15:39:28 +00:00
parent 237b96132d
commit e09c44b6ff
2 changed files with 115 additions and 17 deletions
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131
lldb/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.cpp
View File

@ -580,29 +580,13 @@ const RenderScriptRuntime::HookDefn RenderScriptRuntime::s_runtimeHookDefns[] =
RenderScriptRuntime::eModuleKindDriver, // type
&lldb_private::RenderScriptRuntime::CaptureScriptInit1 // handler
},
{
"rsdScriptInvokeForEach", // name
"_Z22rsdScriptInvokeForEachPKN7android12renderscript7ContextEPNS0_6ScriptEjPKNS0_10AllocationEPS6_PKvjPK12RsScriptCall", // symbol name 32bit
"_Z22rsdScriptInvokeForEachPKN7android12renderscript7ContextEPNS0_6ScriptEjPKNS0_10AllocationEPS6_PKvmPK12RsScriptCall", // symbol name 64bit
0, // version
RenderScriptRuntime::eModuleKindDriver, // type
nullptr // handler
},
{
"rsdScriptInvokeForEachMulti", // name
"_Z27rsdScriptInvokeForEachMultiPKN7android12renderscript7ContextEPNS0_6ScriptEjPPKNS0_10AllocationEjPS6_PKvjPK12RsScriptCall", // symbol name 32bit
"_Z27rsdScriptInvokeForEachMultiPKN7android12renderscript7ContextEPNS0_6ScriptEjPPKNS0_10AllocationEmPS6_PKvmPK12RsScriptCall", // symbol name 64bit
0, // version
RenderScriptRuntime::eModuleKindDriver, // type
nullptr // handler
},
{
"rsdScriptInvokeFunction", // name
"_Z23rsdScriptInvokeFunctionPKN7android12renderscript7ContextEPNS0_6ScriptEjPKvj", // symbol name 32bit
"_Z23rsdScriptInvokeFunctionPKN7android12renderscript7ContextEPNS0_6ScriptEjPKvm", // symbol name 64bit
0, // version
RenderScriptRuntime::eModuleKindDriver, // type
nullptr // handler
&lldb_private::RenderScriptRuntime::CaptureScriptInvokeForEachMulti // handler
},
{
"rsdScriptSetGlobalVar", // name
@ -905,6 +889,119 @@ RenderScriptRuntime::GetArgSimple(ExecutionContext &context, uint32_t arg, uint6
return success;
}
void
RenderScriptRuntime::CaptureScriptInvokeForEachMulti(RuntimeHook* hook_info,
ExecutionContext& context)
{
Log* log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE));
struct args_t
{
uint64_t context; // const Context *rsc
uint64_t script; // Script *s
uint64_t slot; // uint32_t slot
uint64_t aIns; // const Allocation **aIns
uint64_t inLen; // size_t inLen
uint64_t aOut; // Allocation *aout
uint64_t usr; // const void *usr
uint64_t usrLen; // size_t usrLen
uint64_t sc; // const RsScriptCall *sc
}
args;
bool success =
GetArgSimple(context, 0, &args.context) &&
GetArgSimple(context, 1, &args.script) &&
GetArgSimple(context, 2, &args.slot) &&
GetArgSimple(context, 3, &args.aIns) &&
GetArgSimple(context, 4, &args.inLen) &&
GetArgSimple(context, 5, &args.aOut) &&
GetArgSimple(context, 6, &args.usr) &&
GetArgSimple(context, 7, &args.usrLen) &&
GetArgSimple(context, 8, &args.sc);
if (!success)
{
if (log)
log->Printf("RenderScriptRuntime::CaptureScriptInvokeForEachMulti()"
" - Error while reading the function parameters");
return;
}
const uint32_t target_ptr_size = m_process->GetAddressByteSize();
Error error;
std::vector<uint64_t> allocs;
// traverse allocation list
for (uint64_t i = 0; i < args.inLen; ++i)
{
// calculate offest to allocation pointer
const lldb::addr_t addr = args.aIns + i * target_ptr_size;
// Note: due to little endian layout, reading 32bits or 64bits into res64 will
// give the correct results.
uint64_t res64 = 0;
size_t read = m_process->ReadMemory(addr, &res64, target_ptr_size, error);
if (read != target_ptr_size || !error.Success())
{
if (log)
log->Printf("RenderScriptRuntime::CaptureScriptInvokeForEachMulti()"
" - Error while reading allocation list argument %" PRId64, i);
}
else
{
allocs.push_back(res64);
}
}
// if there is an output allocation track it
if (args.aOut)
{
allocs.push_back(args.aOut);
}
// for all allocations we have found
for (const uint64_t alloc_addr : allocs)
{
AllocationDetails* alloc = LookUpAllocation(alloc_addr, true);
if (alloc)
{
// save the allocation address
if (alloc->address.isValid())
{
// check the allocation address we already have matches
assert(*alloc->address.get() == alloc_addr);
}
else
{
alloc->address = alloc_addr;
}
// save the context
if (log)
{
if (alloc->context.isValid() && *alloc->context.get() != args.context)
log->Printf("RenderScriptRuntime::CaptureScriptInvokeForEachMulti"
" - Allocation used by multiple contexts");
}
alloc->context = args.context;
}
}
// make sure we track this script object
if (lldb_private::RenderScriptRuntime::ScriptDetails * script = LookUpScript(args.script, true))
{
if (log)
{
if (script->context.isValid() && *script->context.get() != args.context)
log->Printf("RenderScriptRuntime::CaptureScriptInvokeForEachMulti"
" - Script used by multiple contexts");
}
script->context = args.context;
}
}
void
RenderScriptRuntime::CaptureSetGlobalVar1(RuntimeHook* hook_info, ExecutionContext& context)
{

1
lldb/source/Plugins/LanguageRuntime/RenderScript/RenderScriptRuntime/RenderScriptRuntime.h
View File

@ -324,6 +324,7 @@ private:
void CaptureAllocationInit1(RuntimeHook* hook_info, ExecutionContext& context);
void CaptureAllocationDestroy(RuntimeHook* hook_info, ExecutionContext& context);
void CaptureSetGlobalVar1(RuntimeHook* hook_info, ExecutionContext& context);
void CaptureScriptInvokeForEachMulti(RuntimeHook* hook_info, ExecutionContext& context);
AllocationDetails* FindAllocByID(Stream &strm, const uint32_t alloc_id);
std::shared_ptr<uint8_t> GetAllocationData(AllocationDetails* allocation, StackFrame* frame_ptr);