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// Copyright 2019 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "SpirvShader.hpp"
// If enabled, each instruction will be printed before processing.
#define PRINT_EACH_PROCESSED_INSTRUCTION 0
// If enabled, each instruction will be printed before executing.
#define PRINT_EACH_EXECUTED_INSTRUCTION 0
// If enabled, debugger variables will contain debug information (addresses,
// byte offset, etc).
#define DEBUG_ANNOTATE_VARIABLE_KEYS 0
#ifdef ENABLE_VK_DEBUGGER
# include "Vulkan/Debug/Context.hpp"
# include "Vulkan/Debug/File.hpp"
# include "Vulkan/Debug/Thread.hpp"
# include "Vulkan/Debug/Variable.hpp"
# include "spirv/unified1/OpenCLDebugInfo100.h"
# include "spirv-tools/libspirv.h"
# include <algorithm>
namespace {
// ArgTy<F>::type resolves to the single argument type of the function F.
template<typename F>
struct ArgTy
{
using type = typename ArgTy<decltype(&F::operator())>::type;
};
template<typename R, typename C, typename Arg>
struct ArgTy<R (C::*)(Arg) const>
{
using type = typename std::decay<Arg>::type;
};
template<typename T>
using ArgTyT = typename ArgTy<T>::type;
} // anonymous namespace
namespace spvtools {
// Function implemented in third_party/SPIRV-Tools/source/disassemble.cpp
// but with no public header.
// This is a C++ function, so the name is mangled, and signature changes will
// result in a linker error instead of runtime signature mismatches.
extern std::string spvInstructionBinaryToText(const spv_target_env env,
const uint32_t *inst_binary,
const size_t inst_word_count,
const uint32_t *binary,
const size_t word_count,
const uint32_t options);
} // namespace spvtools
namespace {
const char *laneNames[] = { "Lane 0", "Lane 1", "Lane 2", "Lane 3" };
static_assert(sizeof(laneNames) / sizeof(laneNames[0]) == sw::SIMD::Width,
"laneNames must have SIMD::Width entries");
template<typename T>
std::string tostring(const T &s)
{
return std::to_string(s);
}
std::string tostring(char *s)
{
return s;
}
std::string tostring(const char *s)
{
return s;
}
template<typename T>
std::string tostring(T *s)
{
char buf[32];
snprintf(buf, sizeof(buf), "%p", s);
return buf;
}
std::string tostring(sw::SpirvShader::Object::ID id)
{
return "%" + tostring(id.value());
}
////////////////////////////////////////////////////////////////////////////////
// OpenCL.Debug.100 data structures
////////////////////////////////////////////////////////////////////////////////
namespace debug {
struct Member;
struct Object
{
enum class Kind
{
Object,
Declare,
Expression,
Function,
InlinedAt,
GlobalVariable,
LocalVariable,
Member,
Operation,
Source,
SourceScope,
Value,
TemplateParameter,
// Scopes
CompilationUnit,
LexicalBlock,
// Types
BasicType,
ArrayType,
VectorType,
FunctionType,
CompositeType,
TemplateType,
};
using ID = sw::SpirvID<Object>;
static constexpr auto KIND = Kind::Object;
inline Object(Kind kind)
: kind(kind)
{
(void)KIND; // Used in debug builds. Avoid unused variable warnings in NDEBUG builds.
}
const Kind kind;
// kindof() returns true iff kind is of this type, or any type deriving from
// this type.
static constexpr bool kindof(Object::Kind kind) { return true; }
};
// cstr() returns the c-string name of the given Object::Kind.
constexpr const char *cstr(Object::Kind k)
{
switch(k)
{
case Object::Kind::Object: return "Object";
case Object::Kind::Declare: return "Declare";
case Object::Kind::Expression: return "Expression";
case Object::Kind::Function: return "Function";
case Object::Kind::InlinedAt: return "InlinedAt";
case Object::Kind::GlobalVariable: return "GlobalVariable";
case Object::Kind::LocalVariable: return "LocalVariable";
case Object::Kind::Member: return "Member";
case Object::Kind::Operation: return "Operation";
case Object::Kind::Source: return "Source";
case Object::Kind::SourceScope: return "SourceScope";
case Object::Kind::Value: return "Value";
case Object::Kind::TemplateParameter: return "TemplateParameter";
case Object::Kind::CompilationUnit: return "CompilationUnit";
case Object::Kind::LexicalBlock: return "LexicalBlock";
case Object::Kind::BasicType: return "BasicType";
case Object::Kind::ArrayType: return "ArrayType";
case Object::Kind::VectorType: return "VectorType";
case Object::Kind::FunctionType: return "FunctionType";
case Object::Kind::CompositeType: return "CompositeType";
case Object::Kind::TemplateType: return "TemplateType";
}
return "<unknown>";
}
template<typename TYPE_, typename BASE, Object::Kind KIND_>
struct ObjectImpl : public BASE
{
using ID = sw::SpirvID<TYPE_>;
static constexpr auto KIND = KIND_;
ObjectImpl()
: BASE(KIND)
{}
static_assert(BASE::kindof(KIND), "BASE::kindof() returned false");
// kindof() returns true iff kind is of this type, or any type deriving from
// this type.
static constexpr bool kindof(Object::Kind kind) { return kind == KIND; }
};
template<typename TO, typename FROM>
TO *cast(FROM *obj)
{
if(obj == nullptr) { return nullptr; } // None
return (TO::kindof(obj->kind)) ? static_cast<TO *>(obj) : nullptr;
}
template<typename TO, typename FROM>
const TO *cast(const FROM *obj)
{
if(obj == nullptr) { return nullptr; } // None
return (TO::kindof(obj->kind)) ? static_cast<const TO *>(obj) : nullptr;
}
struct Scope : public Object
{
// Global represents the global scope.
static const Scope Global;
using ID = sw::SpirvID<Scope>;
inline Scope(Kind kind)
: Object(kind)
{}
// kindof() returns true iff kind is of this type, or any type deriving from
// this type.
static constexpr bool kindof(Kind kind)
{
return kind == Kind::CompilationUnit ||
kind == Kind::Function ||
kind == Kind::LexicalBlock;
}
struct Source *source = nullptr;
Scope *parent = nullptr;
};
struct Type : public Object
{
using ID = sw::SpirvID<Type>;
inline Type(Kind kind)
: Object(kind)
{}
// kindof() returns true iff kind is of this type, or any type deriving from
// this type.
static constexpr bool kindof(Kind kind)
{
return kind == Kind::BasicType ||
kind == Kind::ArrayType ||
kind == Kind::VectorType ||
kind == Kind::FunctionType ||
kind == Kind::CompositeType ||
kind == Kind::TemplateType;
}
// sizeInBytes() returns the number of bytes of the given debug type.
virtual uint32_t sizeInBytes() const = 0;
// value() returns a shared pointer to a vk::dbg::Value that views the data
// at ptr of this type.
virtual std::shared_ptr<vk::dbg::Value> value(vk::dbg::Context::Lock &lock, void *ptr, bool interleaved) const = 0;
};
struct CompilationUnit : ObjectImpl<CompilationUnit, Scope, Object::Kind::CompilationUnit>
{
};
struct Source : ObjectImpl<Source, Object, Object::Kind::Source>
{
spv::SourceLanguage language;
uint32_t version = 0;
std::string file;
std::string source;
std::shared_ptr<vk::dbg::File> dbgFile;
};
struct BasicType : ObjectImpl<BasicType, Type, Object::Kind::BasicType>
{
std::string name;
uint32_t size = 0; // in bits.
OpenCLDebugInfo100DebugBaseTypeAttributeEncoding encoding = OpenCLDebugInfo100Unspecified;
uint32_t sizeInBytes() const override { return size / 8; }
std::shared_ptr<vk::dbg::Value> value(vk::dbg::Context::Lock &lock, void *ptr, bool interleaved) const override
{
switch(encoding)
{
case OpenCLDebugInfo100Address:
// return vk::dbg::make_reference(*static_cast<void **>(ptr));
UNIMPLEMENTED("b/148401179 OpenCLDebugInfo100 OpenCLDebugInfo100Address BasicType");
return nullptr;
case OpenCLDebugInfo100Boolean:
return vk::dbg::make_reference(*static_cast<bool *>(ptr));
case OpenCLDebugInfo100Float:
return vk::dbg::make_reference(*static_cast<float *>(ptr));
case OpenCLDebugInfo100Signed:
return vk::dbg::make_reference(*static_cast<int32_t *>(ptr));
case OpenCLDebugInfo100SignedChar:
return vk::dbg::make_reference(*static_cast<int8_t *>(ptr));
case OpenCLDebugInfo100Unsigned:
return vk::dbg::make_reference(*static_cast<uint32_t *>(ptr));
case OpenCLDebugInfo100UnsignedChar:
return vk::dbg::make_reference(*static_cast<uint8_t *>(ptr));
default:
UNIMPLEMENTED("b/148401179 OpenCLDebugInfo100 encoding %d", int(encoding));
return nullptr;
}
}
};
struct ArrayType : ObjectImpl<ArrayType, Type, Object::Kind::ArrayType>
{
Type *base = nullptr;
std::vector<uint32_t> dimensions;
// build() loops over each element of the multi-dimensional array, calling
// enter() for building each new dimension group, and element() for each
// inner-most dimension element.
//
// enter must be a function of the signature:
// std::shared_ptr<vk::dbg::VariableContainer>
// (std::shared_ptr<vk::dbg::VariableContainer>& parent, uint32_t idx)
// where:
// parent is the outer dimension group
// idx is the index of the next deepest dimension.
//
// element must be a function of the signature:
// void(std::shared_ptr<vk::dbg::VariableContainer> &parent,
// uint32_t idx, uint32_t offset)
// where:
// parent is the penultimate deepest dimension group
// idx is the index of the element in parent group
// offset is the 'flattened array' index for the element.
template<typename GROUP, typename ENTER_FUNC, typename ELEMENT_FUNC>
void build(const GROUP &group, ENTER_FUNC &&enter, ELEMENT_FUNC &&element) const
{
if(dimensions.size() == 0) { return; }
struct Dimension
{
uint32_t idx = 0;
GROUP group;
bool built = false;
};
std::vector<Dimension> dims;
dims.resize(dimensions.size());
uint32_t offset = 0;
int dimIdx = 0;
const int n = static_cast<int>(dimensions.size()) - 1;
while(dimIdx >= 0)
{
// (Re)build groups to inner dimensions.
for(; dimIdx <= n; dimIdx++)
{
if(!dims[dimIdx].built)
{
dims[dimIdx].group = (dimIdx == 0)
? group
: enter(dims[dimIdx - 1].group, dims[dimIdx - 1].idx);
dims[dimIdx].built = true;
}
}
// Emit each of the inner-most dimension elements.
for(dims[n].idx = 0; dims[n].idx < dimensions[n]; dims[n].idx++)
{
ASSERT(dims[n].built);
element(dims[n].group, dims[n].idx, offset++);
}
dimIdx = n;
while(dims[dimIdx].idx == dimensions[dimIdx])
{
dims[dimIdx] = {}; // Clear the the current dimension
dimIdx--; // Step up a dimension
if(dimIdx < 0) { break; }
dims[dimIdx].idx++; // Increment the next dimension index
}
}
}
uint32_t sizeInBytes() const override
{
auto numBytes = base->sizeInBytes();
for(auto dim : dimensions)
{
numBytes *= dim;
}
return numBytes;
}
std::shared_ptr<vk::dbg::Value> value(vk::dbg::Context::Lock &lock, void *ptr, bool interleaved) const override
{
auto vc = lock.createVariableContainer();
build(
vc,
[&](std::shared_ptr<vk::dbg::VariableContainer> &parent, uint32_t idx) {
auto child = lock.createVariableContainer();
parent->put(tostring(idx), child);
return child;
},
[&](std::shared_ptr<vk::dbg::VariableContainer> &parent, uint32_t idx, uint32_t offset) {
offset = offset * base->sizeInBytes() * (interleaved ? sw::SIMD::Width : 1);
auto addr = static_cast<uint8_t *>(ptr) + offset;
auto child = base->value(lock, addr, interleaved);
auto key = tostring(idx);
# if DEBUG_ANNOTATE_VARIABLE_KEYS
key += " (" + tostring(addr) + " +" + tostring(offset) + ", idx: " + tostring(idx) + ")" + (interleaved ? "I" : "F");
# endif
parent->put(key, child);
});
return vc;
}
};
struct VectorType : ObjectImpl<VectorType, Type, Object::Kind::VectorType>
{
Type *base = nullptr;
uint32_t components = 0;
uint32_t sizeInBytes() const override
{
return base->sizeInBytes() * components;
}
std::shared_ptr<vk::dbg::Value> value(vk::dbg::Context::Lock &lock, void *ptr, bool interleaved) const override
{
const auto elSize = base->sizeInBytes();
auto vc = lock.createVariableContainer();
for(uint32_t i = 0; i < components; i++)
{
auto offset = elSize * i * (interleaved ? sw::SIMD::Width : 1);
auto elPtr = static_cast<uint8_t *>(ptr) + offset;
auto elKey = tostring(i);
# if DEBUG_ANNOTATE_VARIABLE_KEYS
elKey += " (" + tostring(elPtr) + " +" + tostring(offset) + ")" + (interleaved ? "I" : "F");
# endif
vc->put(elKey, base->value(lock, elPtr, interleaved));
}
return vc;
}
};
struct FunctionType : ObjectImpl<FunctionType, Type, Object::Kind::FunctionType>
{
uint32_t flags = 0; // OR'd from OpenCLDebugInfo100DebugInfoFlags
Type *returnTy = nullptr;
std::vector<Type *> paramTys;
uint32_t sizeInBytes() const override { return 0; }
std::shared_ptr<vk::dbg::Value> value(vk::dbg::Context::Lock &lock, void *ptr, bool interleaved) const override { return nullptr; }
};
struct Member : ObjectImpl<Member, Object, Object::Kind::Member>
{
std::string name;
Type *type = nullptr;
Source *source = nullptr;
uint32_t line = 0;
uint32_t column = 0;
struct CompositeType *parent = nullptr;
uint32_t offset = 0; // in bits
uint32_t size = 0; // in bits
uint32_t flags = 0; // OR'd from OpenCLDebugInfo100DebugInfoFlags
};
struct CompositeType : ObjectImpl<CompositeType, Type, Object::Kind::CompositeType>
{
std::string name;
OpenCLDebugInfo100DebugCompositeType tag = OpenCLDebugInfo100Class;
Source *source = nullptr;
uint32_t line = 0;
uint32_t column = 0;
Object *parent = nullptr;
std::string linkage;
uint32_t size = 0; // in bits.
uint32_t flags = 0; // OR'd from OpenCLDebugInfo100DebugInfoFlags
std::vector<Member *> members;
uint32_t sizeInBytes() const override { return size / 8; }
std::shared_ptr<vk::dbg::Value> value(vk::dbg::Context::Lock &lock, void *ptr, bool interleaved) const override
{
auto vc = lock.createVariableContainer();
for(auto &member : members)
{
auto offset = (member->offset / 8) * (interleaved ? sw::SIMD::Width : 1);
auto elPtr = static_cast<uint8_t *>(ptr) + offset;
auto elKey = member->name;
# if DEBUG_ANNOTATE_VARIABLE_KEYS
// elKey += " (" + tostring(elPtr) + " +" + tostring(offset) + ")" + (interleaved ? "I" : "F");
# endif
vc->put(elKey, member->type->value(lock, elPtr, interleaved));
}
return vc;
}
};
struct TemplateParameter : ObjectImpl<TemplateParameter, Object, Object::Kind::TemplateParameter>
{
std::string name;
Type *type = nullptr;
uint32_t value = 0;
Source *source = nullptr;
uint32_t line = 0;
uint32_t column = 0;
};
struct TemplateType : ObjectImpl<TemplateType, Type, Object::Kind::TemplateType>
{
Type *target = nullptr; // Class, struct or function.
std::vector<TemplateParameter *> parameters;
uint32_t sizeInBytes() const override { return target->sizeInBytes(); }
std::shared_ptr<vk::dbg::Value> value(vk::dbg::Context::Lock &lock, void *ptr, bool interleaved) const override
{
return target->value(lock, ptr, interleaved);
}
};
struct Function : ObjectImpl<Function, Scope, Object::Kind::Function>
{
std::string name;
FunctionType *type = nullptr;
uint32_t line = 0;
uint32_t column = 0;
std::string linkage;
uint32_t flags = 0; // OR'd from OpenCLDebugInfo100DebugInfoFlags
uint32_t scopeLine = 0;
sw::SpirvShader::Function::ID function;
};
struct LexicalBlock : ObjectImpl<LexicalBlock, Scope, Object::Kind::LexicalBlock>
{
uint32_t line = 0;
uint32_t column = 0;
std::string name;
};
struct InlinedAt : ObjectImpl<InlinedAt, Object, Object::Kind::InlinedAt>
{
uint32_t line = 0;
Scope *scope = nullptr;
InlinedAt *inlined = nullptr;
};
struct SourceScope : ObjectImpl<SourceScope, Object, Object::Kind::SourceScope>
{
Scope *scope = nullptr;
InlinedAt *inlinedAt = nullptr;
};
struct GlobalVariable : ObjectImpl<GlobalVariable, Object, Object::Kind::GlobalVariable>
{
std::string name;
Type *type = nullptr;
Source *source = nullptr;
uint32_t line = 0;
uint32_t column = 0;
Scope *parent = nullptr;
std::string linkage;
sw::SpirvShader::Object::ID variable;
uint32_t flags = 0; // OR'd from OpenCLDebugInfo100DebugInfoFlags
};
struct LocalVariable : ObjectImpl<LocalVariable, Object, Object::Kind::LocalVariable>
{
static constexpr uint32_t NoArg = ~uint32_t(0);
std::string name;
Type *type = nullptr;
Source *source = nullptr;
uint32_t line = 0;
uint32_t column = 0;
Scope *parent = nullptr;
uint32_t arg = NoArg;
};
struct Operation : ObjectImpl<Operation, Object, Object::Kind::Operation>
{
uint32_t opcode = 0;
std::vector<uint32_t> operands;
};
struct Expression : ObjectImpl<Expression, Object, Object::Kind::Expression>
{
std::vector<Operation *> operations;
};
struct Declare : ObjectImpl<Declare, Object, Object::Kind::Declare>
{
LocalVariable *local = nullptr;
sw::SpirvShader::Object::ID variable;
Expression *expression = nullptr;
};
struct Value : ObjectImpl<Value, Object, Object::Kind::Value>
{
LocalVariable *local = nullptr;
sw::SpirvShader::Object::ID variable;
Expression *expression = nullptr;
std::vector<uint32_t> indexes;
};
const Scope Scope::Global = CompilationUnit{};
// find<T>() searches the nested scopes, returning for the first scope that is
// castable to type T. If no scope can be found of type T, then nullptr is
// returned.
template<typename T>
T *find(Scope *scope)
{
if(auto out = cast<T>(scope)) { return out; }
return scope->parent ? find<T>(scope->parent) : nullptr;
}
bool hasDebuggerScope(debug::Scope *spirvScope)
{
return debug::cast<debug::Function>(spirvScope) != nullptr ||
debug::cast<debug::LexicalBlock>(spirvScope) != nullptr;
}
} // namespace debug
} // anonymous namespace
namespace rr {
////////////////////////////////////////////////////////////////////////////////
// rr::CToReactor<T> specializations.
////////////////////////////////////////////////////////////////////////////////
template<typename T>
struct CToReactor<sw::SpirvID<T>>
{
using type = rr::Int;
static rr::Int cast(sw::SpirvID<T> id) { return rr::Int(id.value()); }
};
template<typename T>
struct CToReactor<vk::dbg::ID<T>>
{
using type = rr::Int;
static rr::Int cast(vk::dbg::ID<T> id) { return rr::Int(id.value()); }
};
} // namespace rr
namespace sw {
////////////////////////////////////////////////////////////////////////////////
// sw::SpirvShader::Impl::Debugger
//
// Private struct holding debugger information for the SpirvShader.
////////////////////////////////////////////////////////////////////////////////
struct SpirvShader::Impl::Debugger
{
class Group;
class State;
enum class Pass
{
Define,
Emit
};
void process(const SpirvShader *shader, const InsnIterator &insn, EmitState *state, Pass pass);
void setNextSetLocationIsStep();
void setLocation(EmitState *state, const std::shared_ptr<vk::dbg::File> &, int line, int column);
void setLocation(EmitState *state, const std::string &path, int line, int column);
// exposeVariable exposes the variable with the given ID to the debugger
// using the specified key.
template<typename Key>
void exposeVariable(
const SpirvShader *shader,
const Key &key,
const debug::Scope *scope,
const debug::Type *type,
Object::ID id,
EmitState *state) const;
// exposeVariable exposes the variable with the given ID to the
// debugger under the specified group, for the specified SIMD lane.
template<typename Key>
void exposeVariable(
const SpirvShader *shader,
const Group &group,
int lane,
const Key &key,
const debug::Type *type,
Object::ID id,
EmitState *state,
int wordOffset = 0) const;
std::shared_ptr<vk::dbg::Context> ctx;
std::shared_ptr<vk::dbg::File> spirvFile;
std::unordered_map<const void *, int> spirvLineMappings; // instruction pointer to line
std::unordered_map<const void *, Object::ID> results; // instruction pointer to result ID
private:
// add() registers the debug object with the given id.
template<typename ID, typename T>
void add(ID id, T *);
// addNone() registers given id as a None value or type.
void addNone(debug::Object::ID id);
// isNone() returns true if the given id was registered as none with
// addNone().
bool isNone(debug::Object::ID id) const;
// get() returns the debug object with the given id.
// The object must exist and be of type (or derive from type) T.
// A returned nullptr represents a None value or type.
template<typename T>
T *get(SpirvID<T> id) const;
// use get() and add() to access this
std::unordered_map<debug::Object::ID, std::unique_ptr<debug::Object>> objects;
// defineOrEmit() when called in Pass::Define, creates and stores a
// zero-initialized object into the Debugger::objects map using the
// object identifier held by second instruction operand.
// When called in Pass::Emit, defineOrEmit() calls the function F with the
// previously-built object.
//
// F must be a function with the signature:
// void(OBJECT_TYPE *)
//
// The object type is automatically inferred from the function signature.
template<typename F, typename T = typename std::remove_pointer<ArgTyT<F>>::type>
void defineOrEmit(InsnIterator insn, Pass pass, F &&emit);
std::unordered_map<std::string, std::shared_ptr<vk::dbg::File>> files;
bool nextSetLocationIsStep = true;
int lastSetLocationLine = 0;
};
////////////////////////////////////////////////////////////////////////////////
// sw::SpirvShader::Impl::Debugger::State
//
// State holds the runtime data structures for the shader debug session.
////////////////////////////////////////////////////////////////////////////////
class SpirvShader::Impl::Debugger::State
{
public:
static State *create(const Debugger *debugger, const char *name);
static void destroy(State *);
State(const Debugger *debugger, const char *stackBase, vk::dbg::Context::Lock &lock);
~State();
void enter(vk::dbg::Context::Lock &lock, const char *name);
void exit();
void updateActiveLaneMask(int lane, bool enabled);
void updateLocation(bool isStep, vk::dbg::File::ID file, int line, int column);
void createScope(const debug::Scope *);
void setScope(debug::SourceScope *newScope);
vk::dbg::VariableContainer *hovers(const debug::Scope *);
vk::dbg::VariableContainer *localsLane(const debug::Scope *, int lane);
template<typename K>
vk::dbg::VariableContainer *group(vk::dbg::VariableContainer *vc, K key);
template<typename K, typename V>
void putVal(vk::dbg::VariableContainer *vc, K key, V value);
template<typename K>
void putPtr(vk::dbg::VariableContainer *vc, K key, void *ptr, bool interleaved, const debug::Type *type);
template<typename K, typename V>
void putRef(vk::dbg::VariableContainer *vc, K key, V *ptr);
// Scopes holds pointers to the vk::dbg::Scopes for local variables, hover
// variables and the locals indexed by SIMD lane.
struct Scopes
{
std::shared_ptr<vk::dbg::Scope> locals;
std::shared_ptr<vk::dbg::Scope> hovers;
std::array<std::shared_ptr<vk::dbg::VariableContainer>, sw::SIMD::Width> localsByLane;
};
// getScopes() returns the Scopes object for the given debug::Scope.
const Scopes &getScopes(const debug::Scope *scope);
const Debugger *debugger;
const std::shared_ptr<vk::dbg::Thread> thread;
std::unordered_map<const debug::Scope *, Scopes> scopes;
Scopes globals; // Scope for globals.
debug::SourceScope *srcScope = nullptr; // Current source scope.
const size_t initialThreadDepth = 0;
};
SpirvShader::Impl::Debugger::State *SpirvShader::Impl::Debugger::State::create(const Debugger *debugger, const char *name)
{
auto lock = debugger->ctx->lock();
return new State(debugger, name, lock);
}
void SpirvShader::Impl::Debugger::State::destroy(State *state)
{
delete state;
}
SpirvShader::Impl::Debugger::State::State(const Debugger *debugger, const char *stackBase, vk::dbg::Context::Lock &lock)
: debugger(debugger)
, thread(lock.currentThread())
, initialThreadDepth(thread->depth())
{
enter(lock, stackBase);
thread->update(true, [&](vk::dbg::Frame &frame) {
globals.locals = frame.locals;
globals.hovers = frame.hovers;
for(int i = 0; i < sw::SIMD::Width; i++)
{
auto locals = lock.createVariableContainer();
frame.locals->variables->put(laneNames[i], locals);
globals.localsByLane[i] = locals;
}
});
}
SpirvShader::Impl::Debugger::State::~State()
{
for(auto depth = thread->depth(); depth > initialThreadDepth; depth--)
{
exit();
}
}
void SpirvShader::Impl::Debugger::State::enter(vk::dbg::Context::Lock &lock, const char *name)
{
thread->enter(lock, debugger->spirvFile, name);
}
void SpirvShader::Impl::Debugger::State::exit()
{
thread->exit();
}
void SpirvShader::Impl::Debugger::State::updateActiveLaneMask(int lane, bool enabled)
{
globals.localsByLane[lane]->put("enabled", vk::dbg::make_constant(enabled));
}
void SpirvShader::Impl::Debugger::State::updateLocation(bool isStep, vk::dbg::File::ID fileID, int line, int column)
{
auto file = debugger->ctx->lock().get(fileID);
thread->update(isStep, [&](vk::dbg::Frame &frame) {
frame.location = { file, line, column };
});
}
vk::dbg::VariableContainer *SpirvShader::Impl::Debugger::State::hovers(const debug::Scope *scope)
{
return getScopes(scope).hovers->variables.get();
}
vk::dbg::VariableContainer *SpirvShader::Impl::Debugger::State::localsLane(const debug::Scope *scope, int i)
{
return getScopes(scope).localsByLane[i].get();
}
template<typename K>
vk::dbg::VariableContainer *SpirvShader::Impl::Debugger::State::group(vk::dbg::VariableContainer *vc, K key)
{
auto out = debugger->ctx->lock().createVariableContainer();
vc->put(tostring(key), out);
return out.get();
}
template<typename K, typename V>
void SpirvShader::Impl::Debugger::State::putVal(vk::dbg::VariableContainer *vc, K key, V value)
{
vc->put(tostring(key), vk::dbg::make_constant(value));
}
template<typename K>
void SpirvShader::Impl::Debugger::State::putPtr(vk::dbg::VariableContainer *vc, K key, void *ptr, bool interleaved, const debug::Type *type)
{
auto lock = debugger->ctx->lock();
vc->put(tostring(key), type->value(lock, ptr, interleaved));
}
template<typename K, typename V>
void SpirvShader::Impl::Debugger::State::putRef(vk::dbg::VariableContainer *vc, K key, V *ptr)
{
vc->put(tostring(key), vk::dbg::make_reference(*ptr));
}
void SpirvShader::Impl::Debugger::State::createScope(const debug::Scope *spirvScope)
{
// TODO(b/151338669): We're creating scopes per-shader invocation.
// This is all really static information, and should only be created
// once *per program*.
ASSERT(spirvScope != nullptr);
auto lock = debugger->ctx->lock();
Scopes s = {};
s.locals = lock.createScope(spirvScope->source->dbgFile);
s.hovers = lock.createScope(spirvScope->source->dbgFile);
for(int i = 0; i < sw::SIMD::Width; i++)
{
auto locals = lock.createVariableContainer();
s.localsByLane[i] = locals;
s.locals->variables->put(laneNames[i], locals);
}
if(hasDebuggerScope(spirvScope->parent))
{
auto parent = getScopes(spirvScope->parent);
for(int i = 0; i < sw::SIMD::Width; i++)
{
s.localsByLane[i]->extend(parent.localsByLane[i]);
}
s.hovers->variables->extend(parent.hovers->variables);
}
else
{
// Scope has no parent. Ensure the globals are inherited for this stack
// frame.
//
// Note: We're combining globals with locals as DAP doesn't have a
// 'globals' enum value for Scope::presentationHint.
// TODO(bclayton): We should probably keep globals separate from locals
// and combine them at the server interface. That way we can easily
// provide globals if DAP later supports it as a Scope::presentationHint
// type.
for(int i = 0; i < sw::SIMD::Width; i++)
{
s.localsByLane[i]->extend(globals.localsByLane[i]);
}
}
scopes.emplace(spirvScope, std::move(s));
}
void SpirvShader::Impl::Debugger::State::setScope(debug::SourceScope *newSrcScope)
{
auto oldSrcScope = srcScope;
if(oldSrcScope == newSrcScope) { return; }
srcScope = newSrcScope;
if(hasDebuggerScope(srcScope->scope))
{
auto lock = debugger->ctx->lock();
auto thread = lock.currentThread();
debug::Function *oldFunction = oldSrcScope ? debug::find<debug::Function>(oldSrcScope->scope) : nullptr;
debug::Function *newFunction = newSrcScope ? debug::find<debug::Function>(newSrcScope->scope) : nullptr;
if(oldFunction != newFunction)
{
if(oldFunction) { thread->exit(); }
if(newFunction) { thread->enter(lock, newFunction->source->dbgFile, newFunction->name); }
}
auto dbgScope = getScopes(srcScope->scope);
thread->update(true, [&](vk::dbg::Frame &frame) {
frame.locals = dbgScope.locals;
frame.hovers = dbgScope.hovers;
});
}
}
const SpirvShader::Impl::Debugger::State::Scopes &SpirvShader::Impl::Debugger::State::getScopes(const debug::Scope *scope)
{
if(scope == &debug::Scope::Global)
{
return globals;
}
auto dbgScopeIt = scopes.find(scope);
ASSERT_MSG(dbgScopeIt != scopes.end(),
"createScope() not called for debug::Scope %s %p",
cstr(scope->kind), scope);
return dbgScopeIt->second;
}
////////////////////////////////////////////////////////////////////////////////
// sw::SpirvShader::Impl::Debugger::Group
//
// This provides a convenient C++ interface for adding debugger values to
// VariableContainers.
////////////////////////////////////////////////////////////////////////////////
class SpirvShader::Impl::Debugger::Group
{
public:
using Ptr = rr::Pointer<rr::Byte>;
static Group hovers(Ptr state, const debug::Scope *scope);
static Group locals(Ptr state, const debug::Scope *scope);
static Group localsLane(Ptr state, const debug::Scope *scope, int lane);
static Group globals(Ptr state, int lane);
inline Group();
inline Group(Ptr state, Ptr group);
inline bool isValid() const;
template<typename K, typename RK>
Group group(RK key) const;
template<typename K, typename V, typename RK, typename RV>
void put(RK key, RV value) const;
template<typename K, typename RK>
void putPtr(RK key, RValue<Pointer<Byte>> ptr, bool interleaved, const debug::Type *type) const;
template<typename K, typename V, typename RK>
void putRef(RK key, RValue<Pointer<Byte>> ref) const;
template<typename K, typename V, typename RK, typename RV>
void put(RK key, RV x, RV y) const;
template<typename K, typename V, typename RK, typename RV>
void put(RK key, RV x, RV y, RV z) const;
template<typename K, typename V, typename RK, typename RV>
void put(RK key, RV x, RV y, RV z, RV w) const;
template<typename K, typename V, typename VEC>
void putVec3(K key, const VEC &v) const;
private:
Ptr state;
Ptr ptr;
bool valid = false;
};
SpirvShader::Impl::Debugger::Group
SpirvShader::Impl::Debugger::Group::hovers(Ptr state, const debug::Scope *scope)
{
return Group(state, rr::Call(&State::hovers, state, scope));
}
SpirvShader::Impl::Debugger::Group
SpirvShader::Impl::Debugger::Group::localsLane(Ptr state, const debug::Scope *scope, int lane)
{
return Group(state, rr::Call(&State::localsLane, state, scope, lane));
}
SpirvShader::Impl::Debugger::Group
SpirvShader::Impl::Debugger::Group::globals(Ptr state, int lane)
{
return localsLane(state, &debug::Scope::Global, lane);
}
SpirvShader::Impl::Debugger::Group::Group() {}
SpirvShader::Impl::Debugger::Group::Group(Ptr state, Ptr group)
: state(state)
, ptr(group)
, valid(true)
{}
bool SpirvShader::Impl::Debugger::Group::isValid() const
{
return valid;
}
template<typename K, typename RK>
SpirvShader::Impl::Debugger::Group SpirvShader::Impl::Debugger::Group::group(RK key) const
{
ASSERT(isValid());
return Group(state, rr::Call(&State::group<K>, state, ptr, key));
}
template<typename K, typename V, typename RK, typename RV>
void SpirvShader::Impl::Debugger::Group::put(RK key, RV value) const
{
ASSERT(isValid());
rr::Call(&State::putVal<K, V>, state, ptr, key, value);
}
template<typename K, typename RK>
void SpirvShader::Impl::Debugger::Group::putPtr(RK key, RValue<Pointer<Byte>> addr, bool interleaved, const debug::Type *type) const
{
ASSERT(isValid());
rr::Call(&State::putPtr<K>, state, ptr, key, addr, interleaved, type);
}
template<typename K, typename V, typename RK>
void SpirvShader::Impl::Debugger::Group::putRef(RK key, RValue<Pointer<Byte>> ref) const
{
ASSERT(isValid());
rr::Call(&State::putRef<K, V>, state, ptr, key, ref);
}
template<typename K, typename V, typename RK, typename RV>
void SpirvShader::Impl::Debugger::Group::put(RK key, RV x, RV y) const
{
auto vec = group<K>(key);
vec.template put<const char *, V>("x", x);
vec.template put<const char *, V>("y", y);
}
template<typename K, typename V, typename RK, typename RV>
void SpirvShader::Impl::Debugger::Group::put(RK key, RV x, RV y, RV z) const
{
auto vec = group<K>(key);
vec.template put<const char *, V>("x", x);
vec.template put<const char *, V>("y", y);
vec.template put<const char *, V>("z", z);
}
template<typename K, typename V, typename RK, typename RV>
void SpirvShader::Impl::Debugger::Group::put(RK key, RV x, RV y, RV z, RV w) const
{
auto vec = group<K>(key);
vec.template put<const char *, V>("x", x);
vec.template put<const char *, V>("y", y);
vec.template put<const char *, V>("z", z);
vec.template put<const char *, V>("w", w);
}
template<typename K, typename V, typename VEC>
void SpirvShader::Impl::Debugger::Group::putVec3(K key, const VEC &v) const
{
auto vec = group<K>(key);
vec.template put<const char *, V>("x", Extract(v, 0));
vec.template put<const char *, V>("y", Extract(v, 1));
vec.template put<const char *, V>("z", Extract(v, 2));
}
////////////////////////////////////////////////////////////////////////////////
// sw::SpirvShader::Impl::Debugger methods
////////////////////////////////////////////////////////////////////////////////
template<typename F, typename T>
void SpirvShader::Impl::Debugger::defineOrEmit(InsnIterator insn, Pass pass, F &&emit)
{
auto id = SpirvID<T>(insn.word(2));
switch(pass)
{
case Pass::Define:
add(id, new T());
break;
case Pass::Emit:
emit(get<T>(id));
break;
}
}
void SpirvShader::Impl::Debugger::process(const SpirvShader *shader, const InsnIterator &insn, EmitState *state, Pass pass)
{
auto dbg = shader->impl.debugger;
auto extInstIndex = insn.word(4);
switch(extInstIndex)
{
case OpenCLDebugInfo100DebugInfoNone:
if(pass == Pass::Define)
{
addNone(debug::Object::ID(insn.word(2)));
}
break;
case OpenCLDebugInfo100DebugCompilationUnit:
defineOrEmit(insn, pass, [&](debug::CompilationUnit *cu) {
cu->source = get(debug::Source::ID(insn.word(7)));
});
break;
case OpenCLDebugInfo100DebugTypeBasic:
defineOrEmit(insn, pass, [&](debug::BasicType *type) {
type->name = shader->getString(insn.word(5));
type->size = shader->GetConstScalarInt(insn.word(6));
type->encoding = static_cast<OpenCLDebugInfo100DebugBaseTypeAttributeEncoding>(insn.word(7));
});
break;
case OpenCLDebugInfo100DebugTypeArray:
defineOrEmit(insn, pass, [&](debug::ArrayType *type) {
type->base = get(debug::Type::ID(insn.word(5)));
for(uint32_t i = 6; i < insn.wordCount(); i++)
{
type->dimensions.emplace_back(shader->GetConstScalarInt(insn.word(i)));
}
});
break;
case OpenCLDebugInfo100DebugTypeVector:
defineOrEmit(insn, pass, [&](debug::VectorType *type) {
type->base = get(debug::Type::ID(insn.word(5)));
type->components = insn.word(6);
});
break;
case OpenCLDebugInfo100DebugTypeFunction:
defineOrEmit(insn, pass, [&](debug::FunctionType *type) {
type->flags = insn.word(5);
type->returnTy = get(debug::Type::ID(insn.word(6)));
for(uint32_t i = 7; i < insn.wordCount(); i++)
{
type->paramTys.push_back(get(debug::Type::ID(insn.word(i))));
}
});
break;
case OpenCLDebugInfo100DebugTypeComposite:
defineOrEmit(insn, pass, [&](debug::CompositeType *type) {
type->name = shader->getString(insn.word(5));
type->tag = static_cast<OpenCLDebugInfo100DebugCompositeType>(insn.word(6));
type->source = get(debug::Source::ID(insn.word(7)));
type->line = insn.word(8);
type->column = insn.word(9);
type->parent = get(debug::Object::ID(insn.word(10)));
type->linkage = shader->getString(insn.word(11));
type->size = isNone(insn.word(12)) ? 0 : shader->GetConstScalarInt(insn.word(12));
type->flags = insn.word(13);
for(uint32_t i = 14; i < insn.wordCount(); i++)
{
auto obj = get(debug::Object::ID(insn.word(i)));
if(auto member = debug::cast<debug::Member>(obj)) // Can also be Function or TypeInheritance, which we don't care about.
{
type->members.push_back(member);
}
}
});
break;
case OpenCLDebugInfo100DebugTypeMember:
defineOrEmit(insn, pass, [&](debug::Member *member) {
member->name = shader->getString(insn.word(5));
member->type = get(debug::Type::ID(insn.word(6)));
member->source = get(debug::Source::ID(insn.word(7)));
member->line = insn.word(8);
member->column = insn.word(9);
member->parent = get(debug::CompositeType::ID(insn.word(10)));
member->offset = shader->GetConstScalarInt(insn.word(11));
member->size = shader->GetConstScalarInt(insn.word(12));
member->flags = insn.word(13);
});
break;
case OpenCLDebugInfo100DebugTypeTemplate:
defineOrEmit(insn, pass, [&](debug::TemplateType *tpl) {
tpl->target = get(debug::Type::ID(insn.word(5)));
for(size_t i = 6, c = insn.wordCount(); i < c; i++)
{
tpl->parameters.emplace_back(get(debug::TemplateParameter::ID(insn.word(i))));
}
});
break;
case OpenCLDebugInfo100DebugTypeTemplateParameter:
defineOrEmit(insn, pass, [&](debug::TemplateParameter *param) {
param->name = shader->getString(insn.word(5));
param->type = get(debug::Type::ID(insn.word(6)));
param->value = 0; // TODO: Get value from OpConstant if "a template value parameter".
param->source = get(debug::Source::ID(insn.word(8)));
param->line = insn.word(9);
param->column = insn.word(10);
});
break;
case OpenCLDebugInfo100DebugGlobalVariable:
defineOrEmit(insn, pass, [&](debug::GlobalVariable *var) {
var->name = shader->getString(insn.word(5));
var->type = get(debug::Type::ID(insn.word(6)));
var->source = get(debug::Source::ID(insn.word(7)));
var->line = insn.word(8);
var->column = insn.word(9);
var->parent = get(debug::Scope::ID(insn.word(10)));
var->linkage = shader->getString(insn.word(11));
var->variable = insn.word(12);
var->flags = insn.word(13);
// static member declaration: word(14)
exposeVariable(shader, var->name.c_str(), &debug::Scope::Global, var->type, var->variable, state);
});
break;
case OpenCLDebugInfo100DebugFunction:
defineOrEmit(insn, pass, [&](debug::Function *func) {
func->name = shader->getString(insn.word(5));
func->type = get(debug::FunctionType::ID(insn.word(6)));
func->source = get(debug::Source::ID(insn.word(7)));
func->line = insn.word(8);
func->column = insn.word(9);
func->parent = get(debug::Scope::ID(insn.word(10)));
func->linkage = shader->getString(insn.word(11));
func->flags = insn.word(12);
func->scopeLine = insn.word(13);
func->function = Function::ID(insn.word(14));
// declaration: word(13)
rr::Call(&State::createScope, state->routine->dbgState, func);
});
break;
case OpenCLDebugInfo100DebugLexicalBlock:
defineOrEmit(insn, pass, [&](debug::LexicalBlock *scope) {
scope->source = get(debug::Source::ID(insn.word(5)));
scope->line = insn.word(6);
scope->column = insn.word(7);
scope->parent = get(debug::Scope::ID(insn.word(8)));
if(insn.wordCount() > 9)
{
scope->name = shader->getString(insn.word(9));
}
rr::Call(&State::createScope, state->routine->dbgState, scope);
});
break;
case OpenCLDebugInfo100DebugScope:
defineOrEmit(insn, pass, [&](debug::SourceScope *ss) {
ss->scope = get(debug::Scope::ID(insn.word(5)));
if(insn.wordCount() > 6)
{
ss->inlinedAt = get(debug::InlinedAt::ID(insn.word(6)));
}
rr::Call(&State::setScope, state->routine->dbgState, ss);
});
break;
case OpenCLDebugInfo100DebugNoScope:
break;
case OpenCLDebugInfo100DebugInlinedAt:
defineOrEmit(insn, pass, [&](debug::InlinedAt *ia) {
ia->line = insn.word(5);
ia->scope = get(debug::Scope::ID(insn.word(6)));
if(insn.wordCount() > 7)
{
ia->inlined = get(debug::InlinedAt::ID(insn.word(7)));
}
});
break;
case OpenCLDebugInfo100DebugLocalVariable:
defineOrEmit(insn, pass, [&](debug::LocalVariable *var) {
var->name = shader->getString(insn.word(5));
var->type = get(debug::Type::ID(insn.word(6)));
var->source = get(debug::Source::ID(insn.word(7)));
var->line = insn.word(8);
var->column = insn.word(9);
var->parent = get(debug::Scope::ID(insn.word(10)));
if(insn.wordCount() > 11)
{
var->arg = insn.word(11);
}
});
break;
case OpenCLDebugInfo100DebugDeclare:
defineOrEmit(insn, pass, [&](debug::Declare *decl) {
decl->local = get(debug::LocalVariable::ID(insn.word(5)));
decl->variable = Object::ID(insn.word(6));
decl->expression = get(debug::Expression::ID(insn.word(7)));
exposeVariable(
shader,
decl->local->name.c_str(),
decl->local->parent,
decl->local->type,
decl->variable,
state);
});
break;
case OpenCLDebugInfo100DebugValue:
defineOrEmit(insn, pass, [&](debug::Value *value) {
value->local = get(debug::LocalVariable::ID(insn.word(5)));
value->variable = Object::ID(insn.word(6));
value->expression = get(debug::Expression::ID(insn.word(7)));
for(uint32_t i = 8; i < insn.wordCount(); i++)
{
value->indexes.push_back(insn.word(i));
}
});
break;
case OpenCLDebugInfo100DebugExpression:
defineOrEmit(insn, pass, [&](debug::Expression *expr) {
for(uint32_t i = 5; i < insn.wordCount(); i++)
{
expr->operations.push_back(get(debug::Operation::ID(insn.word(i))));
}
});
break;
case OpenCLDebugInfo100DebugSource:
defineOrEmit(insn, pass, [&](debug::Source *source) {
source->file = shader->getString(insn.word(5));
if(insn.wordCount() > 6)
{
source->source = shader->getString(insn.word(6));
auto file = dbg->ctx->lock().createVirtualFile(source->file.c_str(), source->source.c_str());
source->dbgFile = file;
files.emplace(source->file.c_str(), file);
}
else
{
auto file = dbg->ctx->lock().createPhysicalFile(source->file.c_str());
source->dbgFile = file;
files.emplace(source->file.c_str(), file);
}
});
break;
case OpenCLDebugInfo100DebugTypePointer:
case OpenCLDebugInfo100DebugTypeQualifier:
case OpenCLDebugInfo100DebugTypedef:
case OpenCLDebugInfo100DebugTypeEnum:
case OpenCLDebugInfo100DebugTypeInheritance:
case OpenCLDebugInfo100DebugTypePtrToMember:
case OpenCLDebugInfo100DebugTypeTemplateTemplateParameter:
case OpenCLDebugInfo100DebugTypeTemplateParameterPack:
case OpenCLDebugInfo100DebugFunctionDeclaration:
case OpenCLDebugInfo100DebugLexicalBlockDiscriminator:
case OpenCLDebugInfo100DebugInlinedVariable:
case OpenCLDebugInfo100DebugOperation:
case OpenCLDebugInfo100DebugMacroDef:
case OpenCLDebugInfo100DebugMacroUndef:
case OpenCLDebugInfo100DebugImportedEntity:
UNIMPLEMENTED("b/148401179 OpenCLDebugInfo100 instruction %d", int(extInstIndex));
break;
default:
UNSUPPORTED("OpenCLDebugInfo100 instruction %d", int(extInstIndex));
}
}
void SpirvShader::Impl::Debugger::setNextSetLocationIsStep()
{
nextSetLocationIsStep = true;
}
void SpirvShader::Impl::Debugger::setLocation(EmitState *state, const std::shared_ptr<vk::dbg::File> &file, int line, int column)
{
if(line != lastSetLocationLine)
{
// If the line number has changed, then this is always a step.
nextSetLocationIsStep = true;
lastSetLocationLine = line;
}
rr::Call(&State::updateLocation, state->routine->dbgState, nextSetLocationIsStep, file->id, line, column);
nextSetLocationIsStep = false;
}
void SpirvShader::Impl::Debugger::setLocation(EmitState *state, const std::string &path, int line, int column)
{
auto it = files.find(path);
if(it != files.end())
{
setLocation(state, it->second, line, column);
}
}
template<typename ID, typename T>
void SpirvShader::Impl::Debugger::add(ID id, T *obj)
{
ASSERT_MSG(obj != nullptr, "add() called with nullptr obj");
bool added = objects.emplace(debug::Object::ID(id.value()), obj).second;
ASSERT_MSG(added, "Debug object with %d already exists", id.value());
}
void SpirvShader::Impl::Debugger::addNone(debug::Object::ID id)
{
bool added = objects.emplace(debug::Object::ID(id.value()), nullptr).second;
ASSERT_MSG(added, "Debug object with %d already exists", id.value());
}
bool SpirvShader::Impl::Debugger::isNone(debug::Object::ID id) const
{
auto it = objects.find(debug::Object::ID(id.value()));
if(it == objects.end()) { return false; }
return it->second.get() == nullptr;
}
template<typename T>
T *SpirvShader::Impl::Debugger::get(SpirvID<T> id) const
{
auto it = objects.find(debug::Object::ID(id.value()));
ASSERT_MSG(it != objects.end(), "Unknown debug object %d", id.value());
auto ptr = debug::cast<T>(it->second.get());
ASSERT_MSG(ptr, "Debug object %d is not of the correct type. Got: %s, want: %s",
id.value(), cstr(it->second->kind), cstr(T::KIND));
return ptr;
}
template<typename Key>
void SpirvShader::Impl::Debugger::exposeVariable(
const SpirvShader *shader,
const Key &key,
const debug::Scope *scope,
const debug::Type *type,
Object::ID id,
EmitState *state) const
{
auto dbgState = state->routine->dbgState;
auto hover = Group::hovers(dbgState, scope).group<Key>(key);
for(int lane = 0; lane < SIMD::Width; lane++)
{
exposeVariable(shader, Group::localsLane(dbgState, scope, lane), lane, key, type, id, state);
exposeVariable(shader, hover, lane, laneNames[lane], type, id, state);
}
}
template<typename Key>
void SpirvShader::Impl::Debugger::exposeVariable(
const SpirvShader *shader,
const Group &group,
int lane,
const Key &key,
const debug::Type *type,
Object::ID id,
EmitState *state,
int wordOffset /* = 0 */) const
{
auto &obj = shader->getObject(id);
if(type != nullptr)
{
switch(obj.kind)
{
case Object::Kind::InterfaceVariable:
case Object::Kind::Pointer:
case Object::Kind::DescriptorSet:
{
ASSERT(wordOffset == 0); // TODO.
auto ptr = shader->GetPointerToData(id, 0, state); // + sizeof(uint32_t) * wordOffset;
auto &ptrTy = shader->getType(obj);
auto interleaved = IsStorageInterleavedByLane(ptrTy.storageClass);
if(interleaved)
{
ptr = InterleaveByLane(ptr);
}
auto addr = &ptr.base[Extract(ptr.offsets(), lane)];
group.putPtr<Key>(key, addr, interleaved, type);
}
break;
case Object::Kind::Constant:
case Object::Kind::Intermediate:
{
if(auto ty = debug::cast<debug::BasicType>(type))
{
auto val = Operand(shader, state, id).Int(wordOffset);
switch(ty->encoding)
{
case OpenCLDebugInfo100Address:
// TODO: This function takes a SIMD vector, and pointers cannot
// be held in them.
break;
case OpenCLDebugInfo100Boolean:
group.put<Key, bool>(key, Extract(val, lane) != 0);
break;
case OpenCLDebugInfo100Float:
group.put<Key, float>(key, Extract(As<SIMD::Float>(val), lane));
break;
case OpenCLDebugInfo100Signed:
group.put<Key, int>(key, Extract(val, lane));
break;
case OpenCLDebugInfo100SignedChar:
group.put<Key, int8_t>(key, SByte(Extract(val, lane)));
break;
case OpenCLDebugInfo100Unsigned:
group.put<Key, unsigned int>(key, Extract(val, lane));
break;
case OpenCLDebugInfo100UnsignedChar:
group.put<Key, uint8_t>(key, Byte(Extract(val, lane)));
break;
default:
break;
}
}
else if(auto ty = debug::cast<debug::VectorType>(type))
{
auto elWords = 1; // Currently vector elements must only be basic types, 32-bit wide
auto elTy = ty->base;
auto vecGroup = group.group<Key>(key);
switch(ty->components)
{
case 1:
exposeVariable(shader, vecGroup, lane, "x", elTy, id, state, wordOffset + 0 * elWords);
break;
case 2:
exposeVariable(shader, vecGroup, lane, "x", elTy, id, state, wordOffset + 0 * elWords);
exposeVariable(shader, vecGroup, lane, "y", elTy, id, state, wordOffset + 1 * elWords);
break;
case 3:
exposeVariable(shader, vecGroup, lane, "x", elTy, id, state, wordOffset + 0 * elWords);
exposeVariable(shader, vecGroup, lane, "y", elTy, id, state, wordOffset + 1 * elWords);
exposeVariable(shader, vecGroup, lane, "z", elTy, id, state, wordOffset + 2 * elWords);
break;
case 4:
exposeVariable(shader, vecGroup, lane, "x", elTy, id, state, wordOffset + 0 * elWords);
exposeVariable(shader, vecGroup, lane, "y", elTy, id, state, wordOffset + 1 * elWords);
exposeVariable(shader, vecGroup, lane, "z", elTy, id, state, wordOffset + 2 * elWords);
exposeVariable(shader, vecGroup, lane, "w", elTy, id, state, wordOffset + 3 * elWords);
break;
default:
for(uint32_t i = 0; i < ty->components; i++)
{
exposeVariable(shader, vecGroup, lane, tostring(i).c_str(), elTy, id, state, wordOffset + i * elWords);
}
break;
}
}
else if(auto ty = debug::cast<debug::CompositeType>(type))
{
auto objectGroup = group.group<Key>(key);
for(auto member : ty->members)
{
exposeVariable(shader, objectGroup, lane, member->name.c_str(), member->type, id, state, member->offset / 32);
}
}
else if(auto ty = debug::cast<debug::ArrayType>(type))
{
ty->build(
group.group<Key>(key),
[&](Debugger::Group &parent, uint32_t idx) {
return parent.template group<int>(idx);
},
[&](Debugger::Group &parent, uint32_t idx, uint32_t offset) {
exposeVariable(shader, parent, lane, idx, ty->base, id, state, offset);
});
}
else
{
UNIMPLEMENTED("b/145351270: Debug type: %s", cstr(type->kind));
}
return;
}
break;
case Object::Kind::Unknown:
UNIMPLEMENTED("b/145351270: Object kind: %d", (int)obj.kind);
}
return;
}
// No debug type information. Derive from SPIR-V.
switch(shader->getType(obj).opcode())
{
case spv::OpTypeInt:
{
Operand val(shader, state, id);
group.put<Key, int>(key, Extract(val.Int(0), lane));
}
break;
case spv::OpTypeFloat:
{
Operand val(shader, state, id);
group.put<Key, float>(key, Extract(val.Float(0), lane));
}
break;
case spv::OpTypeVector:
{
Operand val(shader, state, id);
auto count = shader->getType(obj).definition.word(3);
switch(count)
{
case 1:
group.put<Key, float>(key, Extract(val.Float(0), lane));
break;
case 2:
group.put<Key, float>(key, Extract(val.Float(0), lane), Extract(val.Float(1), lane));
break;
case 3:
group.put<Key, float>(key, Extract(val.Float(0), lane), Extract(val.Float(1), lane), Extract(val.Float(2), lane));
break;
case 4:
group.put<Key, float>(key, Extract(val.Float(0), lane), Extract(val.Float(1), lane), Extract(val.Float(2), lane), Extract(val.Float(3), lane));
break;
default:
{
auto vec = group.group<Key>(key);
for(uint32_t i = 0; i < count; i++)
{
vec.template put<int, float>(i, Extract(val.Float(i), lane));
}
}
break;
}
}
break;
case spv::OpTypePointer:
{
auto objectTy = shader->getType(shader->getObject(id));
bool interleavedByLane = IsStorageInterleavedByLane(objectTy.storageClass);
auto ptr = state->getPointer(id);
auto ptrGroup = group.group<Key>(key);
shader->VisitMemoryObject(id, [&](const MemoryElement &el) {
auto p = ptr + el.offset;
if(interleavedByLane) { p = InterleaveByLane(p); } // TODO: Interleave once, then add offset?
auto simd = p.Load<SIMD::Float>(sw::OutOfBoundsBehavior::Nullify, state->activeLaneMask());
ptrGroup.template put<int, float>(el.index, Extract(simd, lane));
});
}
break;
default:
break;
}
}
////////////////////////////////////////////////////////////////////////////////
// sw::SpirvShader
////////////////////////////////////////////////////////////////////////////////
void SpirvShader::dbgInit(const std::shared_ptr<vk::dbg::Context> &dbgctx)
{
impl.debugger = new Impl::Debugger();
impl.debugger->ctx = dbgctx;
}
void SpirvShader::dbgTerm()
{
if(impl.debugger)
{
delete impl.debugger;
}
}
void SpirvShader::dbgCreateFile()
{
auto dbg = impl.debugger;
if(!dbg) { return; }
int currentLine = 1;
std::string source;
for(auto insn : *this)
{
auto instruction = spvtools::spvInstructionBinaryToText(
SPV_ENV_VULKAN_1_1,
insn.wordPointer(0),
insn.wordCount(),
insns.data(),
insns.size(),
SPV_BINARY_TO_TEXT_OPTION_NO_HEADER) +
"\n";
dbg->spirvLineMappings[insn.wordPointer(0)] = currentLine;
currentLine += std::count(instruction.begin(), instruction.end(), '\n');
source += instruction;
}
std::string name;
switch(executionModel)
{
case spv::ExecutionModelVertex: name = "VertexShader"; break;
case spv::ExecutionModelFragment: name = "FragmentShader"; break;
case spv::ExecutionModelGLCompute: name = "ComputeShader"; break;
default: name = "SPIR-V Shader"; break;
}
static std::atomic<int> id = { 0 };
name += tostring(id++) + ".spvasm";
dbg->spirvFile = dbg->ctx->lock().createVirtualFile(name.c_str(), source.c_str());
}
void SpirvShader::dbgBeginEmit(EmitState *state) const
{
auto dbg = impl.debugger;
if(!dbg) { return; }
using Group = Impl::Debugger::Group;
auto routine = state->routine;
auto type = "SPIR-V";
switch(executionModel)
{
case spv::ExecutionModelVertex: type = "VertexShader"; break;
case spv::ExecutionModelFragment: type = "FragmentShader"; break;
case spv::ExecutionModelGLCompute: type = "ComputeShader"; break;
default: type = "SPIR-V Shader"; break;
}
auto dbgState = rr::Call(&Impl::Debugger::State::create, dbg, type);
routine->dbgState = dbgState;
SetActiveLaneMask(state->activeLaneMask(), state);
for(int i = 0; i < SIMD::Width; i++)
{
auto globals = Group::globals(dbgState, i);
globals.put<const char *, int>("subgroupSize", routine->invocationsPerSubgroup);
switch(executionModel)
{
case spv::ExecutionModelGLCompute:
globals.putVec3<const char *, int>("numWorkgroups", routine->numWorkgroups);
globals.putVec3<const char *, int>("workgroupID", routine->workgroupID);
globals.putVec3<const char *, int>("workgroupSize", routine->workgroupSize);
globals.put<const char *, int>("numSubgroups", routine->subgroupsPerWorkgroup);
globals.put<const char *, int>("subgroupIndex", routine->subgroupIndex);
globals.put<const char *, int>("globalInvocationId",
rr::Extract(routine->globalInvocationID[0], i),
rr::Extract(routine->globalInvocationID[1], i),
rr::Extract(routine->globalInvocationID[2], i));
globals.put<const char *, int>("localInvocationId",
rr::Extract(routine->localInvocationID[0], i),
rr::Extract(routine->localInvocationID[1], i),
rr::Extract(routine->localInvocationID[2], i));
globals.put<const char *, int>("localInvocationIndex", rr::Extract(routine->localInvocationIndex, i));
break;
case spv::ExecutionModelFragment:
globals.put<const char *, int>("viewIndex", routine->viewID);
globals.put<const char *, float>("fragCoord",
rr::Extract(routine->fragCoord[0], i),
rr::Extract(routine->fragCoord[1], i),
rr::Extract(routine->fragCoord[2], i),
rr::Extract(routine->fragCoord[3], i));
globals.put<const char *, float>("pointCoord",
rr::Extract(routine->pointCoord[0], i),
rr::Extract(routine->pointCoord[1], i));
globals.put<const char *, int>("windowSpacePosition",
rr::Extract(routine->windowSpacePosition[0], i),
rr::Extract(routine->windowSpacePosition[1], i));
globals.put<const char *, int>("helperInvocation", rr::Extract(routine->helperInvocation, i));
break;
case spv::ExecutionModelVertex:
globals.put<const char *, int>("viewIndex", routine->viewID);
globals.put<const char *, int>("instanceIndex", routine->instanceID);
globals.put<const char *, int>("vertexIndex",
rr::Extract(routine->vertexIndex, i));
break;
default:
break;
}
}
}
void SpirvShader::dbgEndEmit(EmitState *state) const
{
auto dbg = impl.debugger;
if(!dbg) { return; }
rr::Call(&Impl::Debugger::State::destroy, state->routine->dbgState);
}
void SpirvShader::dbgBeginEmitInstruction(InsnIterator insn, EmitState *state) const
{
# if PRINT_EACH_PROCESSED_INSTRUCTION
{
auto instruction = spvtools::spvInstructionBinaryToText(
SPV_ENV_VULKAN_1_1,
insn.wordPointer(0),
insn.wordCount(),
insns.data(),
insns.size(),
SPV_BINARY_TO_TEXT_OPTION_NO_HEADER);
printf("%s\n", instruction.c_str());
}
# endif // PRINT_EACH_PROCESSED_INSTRUCTION
# if PRINT_EACH_EXECUTED_INSTRUCTION
{
auto instruction = spvtools::spvInstructionBinaryToText(
SPV_ENV_VULKAN_1_1,
insn.wordPointer(0),
insn.wordCount(),
insns.data(),
insns.size(),
SPV_BINARY_TO_TEXT_OPTION_NO_HEADER);
rr::Print("{0}\n", instruction);
}
# endif // PRINT_EACH_EXECUTED_INSTRUCTION
// Only single line step over statement instructions.
if(auto dbg = impl.debugger)
{
if(insn.opcode() == spv::OpLabel)
{
// Whenever we hit a label, force the next OpLine to be steppable.
// This handles the case where we have control flow on the same line
// For example:
// while(true) { foo(); }
// foo() should be repeatedly steppable.
dbg->setNextSetLocationIsStep();
}
if(extensionsImported.count(Extension::OpenCLDebugInfo100) == 0)
{
// We're emitting debugger logic for SPIR-V.
if(IsStatement(insn.opcode()))
{
auto line = dbg->spirvLineMappings.at(insn.wordPointer(0));
auto column = 0;
dbg->setLocation(state, dbg->spirvFile, line, column);
}
}
}
}
void SpirvShader::dbgEndEmitInstruction(InsnIterator insn, EmitState *state) const
{
auto dbg = impl.debugger;
if(!dbg) { return; }
// Don't display SSA values if rich debug info is available
if(extensionsImported.count(Extension::OpenCLDebugInfo100) == 0)
{
// We're emitting debugger logic for SPIR-V.
// Does this instruction emit a result that should be exposed to the
// debugger?
auto resIt = dbg->results.find(insn.wordPointer(0));
if(resIt != dbg->results.end())
{
auto id = resIt->second;
dbgExposeIntermediate(id, state);
}
}
}
void SpirvShader::dbgExposeIntermediate(Object::ID id, EmitState *state) const
{
auto dbg = impl.debugger;
if(!dbg) { return; }
dbg->exposeVariable(this, id, &debug::Scope::Global, nullptr, id, state);
}
void SpirvShader::dbgUpdateActiveLaneMask(RValue<SIMD::Int> mask, EmitState *state) const
{
auto dbg = impl.debugger;
if(!dbg) { return; }
for(int lane = 0; lane < SIMD::Width; lane++)
{
rr::Call(&Impl::Debugger::State::updateActiveLaneMask, state->routine->dbgState, lane, rr::Extract(mask, lane) != 0);
}
}
void SpirvShader::dbgDeclareResult(const InsnIterator &insn, Object::ID resultId) const
{
auto dbg = impl.debugger;
if(!dbg) { return; }
dbg->results.emplace(insn.wordPointer(0), resultId);
}
SpirvShader::EmitResult SpirvShader::EmitLine(InsnIterator insn, EmitState *state) const
{
if(auto dbg = impl.debugger)
{
auto path = getString(insn.word(1));
auto line = insn.word(2);
auto column = insn.word(3);
dbg->setLocation(state, path, line, column);
}
return EmitResult::Continue;
}
void SpirvShader::DefineOpenCLDebugInfo100(const InsnIterator &insn)
{
auto dbg = impl.debugger;
if(!dbg) { return; }
dbg->process(this, insn, nullptr, Impl::Debugger::Pass::Define);
}
SpirvShader::EmitResult SpirvShader::EmitOpenCLDebugInfo100(InsnIterator insn, EmitState *state) const
{
if(auto dbg = impl.debugger)
{
dbg->process(this, insn, state, Impl::Debugger::Pass::Emit);
}
return EmitResult::Continue;
}
} // namespace sw
#else // ENABLE_VK_DEBUGGER
// Stub implementations of the dbgXXX functions.
namespace sw {
void SpirvShader::dbgInit(const std::shared_ptr<vk::dbg::Context> &dbgctx) {}
void SpirvShader::dbgTerm() {}
void SpirvShader::dbgCreateFile() {}
void SpirvShader::dbgBeginEmit(EmitState *state) const {}
void SpirvShader::dbgEndEmit(EmitState *state) const {}
void SpirvShader::dbgBeginEmitInstruction(InsnIterator insn, EmitState *state) const {}
void SpirvShader::dbgEndEmitInstruction(InsnIterator insn, EmitState *state) const {}
void SpirvShader::dbgExposeIntermediate(Object::ID id, EmitState *state) const {}
void SpirvShader::dbgUpdateActiveLaneMask(RValue<SIMD::Int> mask, EmitState *state) const {}
void SpirvShader::dbgDeclareResult(const InsnIterator &insn, Object::ID resultId) const {}
void SpirvShader::DefineOpenCLDebugInfo100(const InsnIterator &insn) {}
SpirvShader::EmitResult SpirvShader::EmitOpenCLDebugInfo100(InsnIterator insn, EmitState *state) const
{
return EmitResult::Continue;
}
SpirvShader::EmitResult SpirvShader::EmitLine(InsnIterator insn, EmitState *state) const
{
return EmitResult::Continue;
}
} // namespace sw
#endif // ENABLE_VK_DEBUGGER