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874 lines
23 KiB
C
874 lines
23 KiB
C
//
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// m3_env.c
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//
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// Created by Steven Massey on 4/19/19.
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// Copyright © 2019 Steven Massey. All rights reserved.
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//
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#include <stdarg.h>
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#include "m3_env.h"
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#include "m3_compile.h"
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#include "m3_exec.h"
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#include "m3_exception.h"
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cstr_t GetFunctionName (IM3Function i_function)
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{
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if (i_function->import.fieldUtf8)
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return i_function->import.fieldUtf8;
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else
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return (i_function->name) ? i_function->name : "<unnamed>";
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}
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cstr_t GetFunctionImportModuleName (IM3Function i_function)
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{
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return (i_function->import.moduleUtf8) ? i_function->import.moduleUtf8 : "";
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}
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u32 GetFunctionNumArgs (IM3Function i_function)
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{
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u32 numArgs = 0;
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if (i_function)
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{
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if (i_function->funcType)
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numArgs = i_function->funcType->numArgs;
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}
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return numArgs;
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}
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u32 GetFunctionNumReturns (IM3Function i_function)
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{
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u32 numReturns = 0;
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if (i_function->funcType)
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numReturns = i_function->funcType->returnType ? 1 : 0;
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return numReturns;
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}
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u8 GetFunctionReturnType (IM3Function i_function)
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{
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u8 returnType = c_m3Type_none;
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if (i_function->funcType)
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returnType = i_function->funcType->returnType;
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return returnType;
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}
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u32 GetFunctionNumArgsAndLocals (IM3Function i_function)
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{
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if (i_function)
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return i_function->numLocals + GetFunctionNumArgs (i_function);
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else
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return 0;
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}
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void FreeImportInfo (M3ImportInfo * i_info)
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{
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m3Free (i_info->moduleUtf8);
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m3Free (i_info->fieldUtf8);
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}
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IM3Environment m3_NewEnvironment ()
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{
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IM3Environment env = NULL;
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m3Alloc (& env, M3Environment, 1);
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return env;
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}
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void m3_FreeEnvironment (IM3Environment i_environment)
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{
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if (i_environment)
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{
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// ReleaseEnvironment (i_environment);
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m3Free (i_environment);
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}
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}
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IM3Runtime m3_NewRuntime (IM3Environment i_environment, u32 i_stackSizeInBytes, M3StackInfo * i_nativeStackInfo)
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{
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IM3Runtime runtime = NULL;
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m3Alloc (& runtime, M3Runtime, 1);
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if (runtime)
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{
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m3_ResetErrorInfo(runtime);
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runtime->environment = i_environment;
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m3Malloc (& runtime->stack, i_stackSizeInBytes);
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if (runtime->stack)
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{
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runtime->numStackSlots = i_stackSizeInBytes / sizeof (m3reg_t); m3log (runtime, "new stack: %p", runtime->stack);
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}
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else m3Free (runtime);
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}
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return runtime;
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}
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typedef void * (* ModuleVisitor) (IM3Module i_module, void * i_info);
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void * ForEachModule (IM3Runtime i_runtime, ModuleVisitor i_visitor, void * i_info)
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{
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void * r = NULL;
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IM3Module module = i_runtime->modules;
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while (module)
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{
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IM3Module next = module->next;
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r = i_visitor (module, i_info);
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if (r)
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break;
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module = next;
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}
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return r;
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}
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void * _FreeModule (IM3Module i_module, void * i_info)
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{
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m3_FreeModule (i_module);
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return NULL;
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}
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void FreeCompilationPatches (IM3Compilation o)
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{
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IM3BranchPatch patches = o->releasedPatches;
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while (patches)
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{
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IM3BranchPatch next = patches->next;
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m3Free (patches);
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patches = next;
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}
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}
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void ReleaseRuntime (IM3Runtime i_runtime)
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{
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ForEachModule (i_runtime, _FreeModule, NULL);
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FreeCodePages (i_runtime->pagesOpen);
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FreeCodePages (i_runtime->pagesFull);
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FreeCompilationPatches (& i_runtime->compilation);
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m3Free (i_runtime->stack);
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m3Free (i_runtime->memory.mallocated);
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}
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void m3_FreeRuntime (IM3Runtime i_runtime)
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{
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if (i_runtime)
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{
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m3_PrintProfilerInfo ();
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ReleaseRuntime (i_runtime);
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m3Free (i_runtime);
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}
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}
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M3Result EvaluateExpression (IM3Module i_module, void * o_expressed, u8 i_type, bytes_t * io_bytes, cbytes_t i_end)
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{
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M3Result result = m3Err_none;
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u64 stack [d_m3MaxFunctionStackHeight]; // stack on the stack
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// create a temporary runtime context
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M3Runtime runtime;
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M3_INIT (runtime);
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runtime.environment = i_module->runtime->environment;
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runtime.numStackSlots = d_m3MaxFunctionStackHeight;
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runtime.stack = & stack;
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IM3Runtime savedRuntime = i_module->runtime;
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i_module->runtime = & runtime;
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IM3Compilation o = & runtime.compilation;
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o->runtime = & runtime;
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o->module = i_module;
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o->wasm = * io_bytes;
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o->wasmEnd = i_end;
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o->block.depth = -1; // so that root compilation depth = 0
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// OPTZ: this code page could be erased after use. maybe have 'empty' list in addition to full and open?
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o->page = AcquireCodePage (& runtime); // AcquireUnusedCodePage (...)
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if (o->page)
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{
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pc_t m3code = GetPagePC (o->page);
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result = CompileBlock (o, i_type, c_waOp_block);
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if (not result)
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{
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m3ret_t r = Call (m3code, stack, NULL, d_m3OpDefaultArgs);
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result = runtime.runtimeError;
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if (r == 0 and not result)
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{
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if (SizeOfType (i_type) == sizeof (u32))
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{
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* (u32 *) o_expressed = *stack & 0xFFFFFFFF;
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}
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else if (SizeOfType (i_type) == sizeof (u64))
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{
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* (u64 *) o_expressed = *stack;
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}
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}
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}
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// TODO: EraseCodePage (...) see OPTZ above
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ReleaseCodePage (& runtime, o->page);
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}
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else result = m3Err_mallocFailedCodePage;
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runtime.stack = NULL; // prevent free(stack) in ReleaseRuntime
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ReleaseRuntime (& runtime);
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i_module->runtime = savedRuntime;
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* io_bytes = o->wasm;
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return result;
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}
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M3Result InitMemory (IM3Runtime io_runtime, IM3Module i_module)
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{
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M3Result result = m3Err_none; //d_m3Assert (not io_runtime->memory.wasmPages);
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if (not i_module->memoryImported)
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{
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u32 maxPages = i_module->memoryInfo.maxPages;
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io_runtime->memory.maxPages = maxPages ? maxPages : 65536;
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result = ResizeMemory (io_runtime, i_module->memoryInfo.initPages);
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}
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return result;
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}
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M3Result ResizeMemory (IM3Runtime io_runtime, u32 i_numPages)
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{
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M3Result result = m3Err_none;
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u32 numPagesToAlloc = i_numPages;
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M3Memory * memory = & io_runtime->memory;
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#if 0 // Temporary fix for memory allocation
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if (memory->mallocated) {
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memory->numPages = i_numPages;
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memory->mallocated->end = memory->wasmPages + (memory->numPages * c_m3MemPageSize);
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return result;
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}
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i_numPagesToAlloc = 256;
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#endif
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if (numPagesToAlloc <= memory->maxPages)
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{
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size_t numPageBytes = numPagesToAlloc * d_m3MemPageSize;
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// Limit the amount of memory that gets allocated
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if (io_runtime->memoryLimit) {
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numPageBytes = M3_MIN(numPageBytes, io_runtime->memoryLimit);
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}
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size_t numBytes = numPageBytes + sizeof (M3MemoryHeader);
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size_t numPreviousBytes = memory->numPages * d_m3MemPageSize;
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if (numPreviousBytes)
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numPreviousBytes += sizeof (M3MemoryHeader);
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memory->mallocated = (M3MemoryHeader *) m3Realloc (memory->mallocated, numBytes, numPreviousBytes);
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if (memory->mallocated)
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{
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#if d_m3LogRuntime
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u8 * oldMallocated = memory->mallocated;
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#endif
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memory->numPages = numPagesToAlloc;
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memory->mallocated->length = numPageBytes;
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memory->mallocated->runtime = io_runtime;
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memory->mallocated->maxStack = (m3reg_t *) io_runtime->stack + io_runtime->numStackSlots;
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m3log (runtime, "resized old: %p; mem: %p; length: %z; pages: %d", oldMallocated, memory->mallocated, memory->mallocated->length, memory->numPages);
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}
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else result = m3Err_mallocFailed;
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}
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else result = m3Err_wasmMemoryOverflow;
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return result;
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}
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M3Result InitGlobals (IM3Module io_module)
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{
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M3Result result = m3Err_none;
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if (io_module->numGlobals)
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{
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// placing the globals in their structs isn't good for cache locality, but i don't really know what the global
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// access patterns typcially look like yet.
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// io_module->globalMemory = m3Alloc (m3reg_t, io_module->numGlobals);
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// if (io_module->globalMemory)
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{
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for (u32 i = 0; i < io_module->numGlobals; ++i)
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{
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M3Global * g = & io_module->globals [i]; m3log (runtime, "initializing global: %d", i);
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if (g->initExpr)
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{
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bytes_t start = g->initExpr;
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result = EvaluateExpression (io_module, & g->intValue, g->type, & start, g->initExpr + g->initExprSize);
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if (not result)
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{
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// io_module->globalMemory [i] = initValue;
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}
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else break;
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}
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else
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{ m3log (runtime, "importing global");
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}
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}
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}
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// else result = ErrorModule (m3Err_mallocFailed, io_module, "could allocate globals for module: '%s", io_module->name);
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}
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return result;
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}
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M3Result InitDataSegments (M3Memory * io_memory, IM3Module io_module)
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{
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M3Result result = m3Err_none;
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for (u32 i = 0; i < io_module->numDataSegments; ++i)
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{
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M3DataSegment * segment = & io_module->dataSegments [i];
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i32 segmentOffset;
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bytes_t start = segment->initExpr;
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_ (EvaluateExpression (io_module, & segmentOffset, c_m3Type_i32, & start, segment->initExpr + segment->initExprSize));
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m3log (runtime, "loading data segment: %d; size: %d; offset: %d", i, segment->size, segmentOffset);
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if (io_memory->mallocated)
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{
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u8 * dest = m3MemData(io_memory->mallocated) + segmentOffset;
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if ((size_t)segmentOffset + segment->size <= io_memory->mallocated->length)
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memcpy (dest, segment->data, segment->size);
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else
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_throw ("data segment overflowing linear memory");
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}
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else _throw ("unallocated linear memory");
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}
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_catch: return result;
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}
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M3Result InitElements (IM3Module io_module)
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{
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M3Result result = m3Err_none;
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bytes_t bytes = io_module->elementSection;
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cbytes_t end = io_module->elementSectionEnd;
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for (u32 i = 0; i < io_module->numElementSegments; ++i)
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{
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u32 index;
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_ (ReadLEB_u32 (& index, & bytes, end));
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if (index == 0)
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{
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i32 offset;
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_ (EvaluateExpression (io_module, & offset, c_m3Type_i32, & bytes, end));
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u32 numElements;
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_ (ReadLEB_u32 (& numElements, & bytes, end));
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u32 endElement = numElements + offset;
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if (endElement > offset) // TODO: check this, endElement depends on offset
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{
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io_module->table0 = (IM3Function*)m3ReallocArray (io_module->table0, IM3Function, endElement, io_module->table0Size);
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if (io_module->table0)
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{
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io_module->table0Size = endElement;
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for (u32 e = 0; e < numElements; ++e)
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{
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u32 functionIndex;
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_ (ReadLEB_u32 (& functionIndex, & bytes, end));
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if (functionIndex < io_module->numFunctions)
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{
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IM3Function function = & io_module->functions [functionIndex]; d_m3Assert (function); //printf ("table: %s\n", function->name);
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io_module->table0 [e + offset] = function;
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}
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else _throw ("function index out of range");
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}
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}
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else _throw (m3Err_mallocFailed);
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}
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else _throw ("table overflow");
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}
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else _throw ("element table index must be zero for MVP");
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}
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_catch: return result;
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}
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M3Result InitStartFunc (IM3Module io_module)
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{
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M3Result result = m3Err_none;
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if (io_module->startFunction >= 0)
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{
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IM3Function function = & io_module->functions [io_module->startFunction];
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if (not function->compiled)
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{
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_ (Compile_Function (function));
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}
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_ (m3_Call(function));
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}
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_catch: return result;
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}
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// TODO: deal with main + side-modules loading efforcement
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M3Result m3_LoadModule (IM3Runtime io_runtime, IM3Module io_module)
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{
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M3Result result = m3Err_none;
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if (not io_module->runtime)
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{
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io_module->runtime = io_runtime;
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M3Memory * memory = & io_runtime->memory;
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_ (InitMemory (io_runtime, io_module));
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_ (InitGlobals (io_module));
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_ (InitDataSegments (memory, io_module));
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_ (InitElements (io_module));
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io_module->next = io_runtime->modules;
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io_runtime->modules = io_module;
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// Functions expect module to be linked to a runtime, so we call start here
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_ (InitStartFunc (io_module));
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}
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else result = m3Err_moduleAlreadyLinked;
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if (result)
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io_module->runtime = NULL;
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_catch: return result;
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}
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void * v_FindFunction (IM3Module i_module, const char * const i_name)
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{
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for (u32 i = 0; i < i_module->numFunctions; ++i)
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{
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IM3Function f = & i_module->functions [i];
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if (f->name)
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{
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if (strcmp (f->name, i_name) == 0)
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return f;
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}
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}
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return NULL;
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}
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M3Result m3_FindFunction (IM3Function * o_function, IM3Runtime i_runtime, const char * const i_functionName)
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{
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M3Result result = m3Err_none;
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if (!i_runtime->modules) {
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return "no modules loaded";
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}
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IM3Function function = (IM3Function) ForEachModule (i_runtime, (ModuleVisitor) v_FindFunction, (void *) i_functionName);
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if (function)
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{
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if (not function->compiled)
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{
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result = Compile_Function (function);
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if (result)
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function = NULL;
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}
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}
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else result = ErrorModule (m3Err_functionLookupFailed, i_runtime->modules, "'%s'", i_functionName);
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* o_function = function;
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return result;
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}
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M3Result m3_Call (IM3Function i_function)
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{
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return m3_CallWithArgs (i_function, 0, NULL);
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}
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M3Result m3_CallWithArgs (IM3Function i_function, uint32_t i_argc, const char * const * i_argv)
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{
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M3Result result = m3Err_none;
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if (i_function->compiled)
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{
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IM3Module module = i_function->module;
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IM3Runtime runtime = module->runtime;
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runtime->argc = i_argc;
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runtime->argv = i_argv;
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if (i_function->name and strcmp (i_function->name, "_start") == 0) // WASI
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i_argc = 0;
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IM3FuncType ftype = i_function->funcType;
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m3stack_t stack = (m3stack_t)(runtime->stack);
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m3logif (runtime, PrintFuncTypeSignature (ftype));
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if (i_argc != ftype->numArgs) {
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_throw("arguments count mismatch");
|
|
}
|
|
|
|
// The format is currently not user-friendly by default,
|
|
// as this is used in spec tests
|
|
for (u32 i = 0; i < ftype->numArgs; ++i)
|
|
{
|
|
m3stack_t s = &stack[i];
|
|
ccstr_t str = i_argv[i];
|
|
|
|
switch (ftype->argTypes[i]) {
|
|
#ifdef USE_HUMAN_FRIENDLY_ARGS
|
|
case c_m3Type_i32: *(i32*)(s) = atol(str); break;
|
|
case c_m3Type_i64: *(i64*)(s) = atoll(str); break;
|
|
case c_m3Type_f32: *(f32*)(s) = atof(str); break;
|
|
case c_m3Type_f64: *(f64*)(s) = atof(str); break;
|
|
#else
|
|
case c_m3Type_i32:
|
|
case c_m3Type_f32: *(u32*)(s) = strtoul(str, NULL, 10); break;
|
|
case c_m3Type_i64:
|
|
case c_m3Type_f64: *(u64*)(s) = strtoull(str, NULL, 10); break;
|
|
#endif
|
|
default: _throw("unknown argument type");
|
|
}
|
|
}
|
|
|
|
m3StackCheckInit();
|
|
_ ((M3Result)Call (i_function->compiled, stack, runtime->memory.mallocated, d_m3OpDefaultArgs));
|
|
|
|
#if d_m3LogOutput
|
|
switch (ftype->returnType) {
|
|
case c_m3Type_none: fprintf (stderr, "Result: <Empty Stack>\n"); break;
|
|
#ifdef USE_HUMAN_FRIENDLY_ARGS
|
|
case c_m3Type_i32: fprintf (stderr, "Result: %" PRIi32 "\n", *(i32*)(stack)); break;
|
|
case c_m3Type_i64: fprintf (stderr, "Result: %" PRIi64 "\n", *(i64*)(stack)); break;
|
|
case c_m3Type_f32: fprintf (stderr, "Result: %f\n", *(f32*)(stack)); break;
|
|
case c_m3Type_f64: fprintf (stderr, "Result: %lf\n", *(f64*)(stack)); break;
|
|
#else
|
|
case c_m3Type_i32: fprintf (stderr, "Result: %u\n", *(u32*)(stack)); break;
|
|
case c_m3Type_f32: {
|
|
union { u32 u; f32 f; } union32;
|
|
union32.f = * (f32 *)(stack);
|
|
fprintf (stderr, "Result: %u\n", union32.u );
|
|
break;
|
|
}
|
|
case c_m3Type_i64:
|
|
case c_m3Type_f64:
|
|
fprintf (stderr, "Result: %" PRIu64 "\n", *(u64*)(stack)); break;
|
|
#endif // USE_HUMAN_FRIENDLY_ARGS
|
|
default: _throw("unknown return type");
|
|
}
|
|
|
|
#if d_m3LogNativeStack
|
|
size_t stackUsed = m3StackGetMax();
|
|
fprintf (stderr, "Native stack used: %d\n", stackUsed);
|
|
#endif // d_m3LogNativeStack
|
|
|
|
#endif // d_m3LogOutput
|
|
|
|
//u64 value = * (u64 *) (stack);
|
|
//m3log (runtime, "return64: %" PRIu64 " return32: %u", value, (u32) value);
|
|
}
|
|
else _throw (m3Err_missingCompiledCode);
|
|
|
|
_catch: return result;
|
|
}
|
|
|
|
#if 0
|
|
M3Result m3_CallMain (IM3Function i_function, uint32_t i_argc, const char * const * i_argv)
|
|
{
|
|
M3Result result = m3Err_none;
|
|
|
|
if (i_function->compiled)
|
|
{
|
|
IM3Module module = i_function->module;
|
|
|
|
IM3Runtime runtime = module->runtime;
|
|
|
|
u8 * linearMemory = runtime->memory.wasmPages;
|
|
|
|
m3stack_t stack = (m3stack_t) runtime->stack;
|
|
|
|
if (i_argc)
|
|
{
|
|
IM3Memory memory = & runtime->memory;
|
|
// FIX: memory allocation in general
|
|
|
|
i32 offset = AllocatePrivateHeap (memory, sizeof (i32) * i_argc);
|
|
|
|
i32 * pointers = (i32 *) (memory->wasmPages + offset);
|
|
|
|
for (u32 i = 0; i < i_argc; ++i)
|
|
{
|
|
size_t argLength = strlen (i_argv [i]) + 1;
|
|
|
|
if (argLength < 4000)
|
|
{
|
|
i32 o = AllocatePrivateHeap (memory, (i32) argLength);
|
|
memcpy (memory->wasmPages + o, i_argv [i], argLength);
|
|
|
|
* pointers++ = o;
|
|
}
|
|
else _throw ("insane argument string length");
|
|
}
|
|
|
|
stack [0] = i_argc;
|
|
stack [1] = offset;
|
|
}
|
|
|
|
_ ((M3Result)Call (i_function->compiled, stack, linearMemory, d_m3OpDefaultArgs));
|
|
|
|
//u64 value = * (u64 *) (stack);
|
|
//m3log (runtime, "return64: % " PRIu64 " return32: %" PRIu32, value, (u32) value);
|
|
}
|
|
else _throw (m3Err_missingCompiledCode);
|
|
|
|
_catch: return result;
|
|
}
|
|
#endif
|
|
|
|
|
|
void ReleaseCodePageNoTrack (IM3Runtime i_runtime, IM3CodePage i_codePage)
|
|
{
|
|
if (i_codePage)
|
|
{
|
|
// IM3Environment env = i_runtime->environment;
|
|
IM3Runtime env = i_runtime;
|
|
IM3CodePage * list;
|
|
|
|
bool pageFull = (NumFreeLines (i_codePage) < d_m3CodePageFreeLinesThreshold);
|
|
if (pageFull)
|
|
list = & i_runtime->pagesFull;
|
|
else
|
|
list = & i_runtime->pagesOpen;
|
|
|
|
PushCodePage (list, i_codePage); m3log (emit, "release page: %d to queue: '%s'", i_codePage->info.sequence, pageFull ? "full" : "open")
|
|
}
|
|
}
|
|
|
|
|
|
IM3CodePage AcquireCodePageWithCapacityR (IM3Runtime i_runtime, u32 i_lineCount)
|
|
{
|
|
IM3CodePage page;
|
|
|
|
if (i_runtime->pagesOpen)
|
|
{
|
|
page = PopCodePage (& i_runtime->pagesOpen);
|
|
|
|
if (NumFreeLines (page) < i_lineCount)
|
|
{
|
|
IM3CodePage tryAnotherPage = AcquireCodePageWithCapacityR (i_runtime, i_lineCount);
|
|
|
|
ReleaseCodePageNoTrack (i_runtime, page);
|
|
page = tryAnotherPage;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
page = NewCodePage (i_lineCount);
|
|
if (page)
|
|
i_runtime->numCodePages++;
|
|
}
|
|
|
|
return page;
|
|
}
|
|
|
|
|
|
IM3CodePage AcquireCodePageWithCapacity (IM3Runtime i_runtime, u32 i_lineCount)
|
|
{
|
|
IM3CodePage page = AcquireCodePageWithCapacityR (i_runtime, i_lineCount);
|
|
|
|
if (page)
|
|
{ m3log (emit, "acquire page: %d", page->info.sequence);
|
|
i_runtime->numActiveCodePages++;
|
|
}
|
|
|
|
return page;
|
|
}
|
|
|
|
|
|
IM3CodePage AcquireCodePage (IM3Runtime i_runtime)
|
|
{
|
|
return AcquireCodePageWithCapacity (i_runtime, d_m3CodePageFreeLinesThreshold);
|
|
}
|
|
|
|
|
|
u32 CountPages (IM3CodePage i_page)
|
|
{
|
|
u32 numPages = 0;
|
|
|
|
while (i_page)
|
|
{
|
|
++numPages;
|
|
i_page = i_page->info.next;
|
|
}
|
|
|
|
return numPages;
|
|
}
|
|
|
|
|
|
void ReleaseCodePage (IM3Runtime i_runtime, IM3CodePage i_codePage)
|
|
{
|
|
if (i_codePage)
|
|
{
|
|
ReleaseCodePageNoTrack (i_runtime, i_codePage);
|
|
i_runtime->numActiveCodePages--;
|
|
|
|
# if defined (DEBUG)
|
|
u32 numOpen = CountPages (i_runtime->pagesOpen);
|
|
u32 numFull = CountPages (i_runtime->pagesFull);
|
|
|
|
m3log (emit, "runtime: %p; open-pages: %d; full-pages: %d; active: %d; total: %d", i_runtime, numOpen, numFull, i_runtime->numActiveCodePages, i_runtime->numCodePages);
|
|
|
|
d_m3Assert (numOpen + numFull + i_runtime->numActiveCodePages == i_runtime->numCodePages);
|
|
|
|
# if d_m3LogCodePages
|
|
dump_code_page (i_codePage, /* startPC: */ NULL);
|
|
# endif
|
|
# endif
|
|
}
|
|
}
|
|
|
|
|
|
#if d_m3VerboseLogs
|
|
M3Result m3Error (M3Result i_result, IM3Runtime i_runtime, IM3Module i_module, IM3Function i_function,
|
|
const char * const i_file, u32 i_lineNum, const char * const i_errorMessage, ...)
|
|
{
|
|
if (i_runtime)
|
|
{
|
|
i_runtime->error = (M3ErrorInfo){ i_result, i_runtime, i_module, i_function, i_file, i_lineNum };
|
|
i_runtime->error.message = i_runtime->error_message;
|
|
|
|
va_list args;
|
|
va_start (args, i_errorMessage);
|
|
vsnprintf (i_runtime->error_message, sizeof(i_runtime->error_message), i_errorMessage, args);
|
|
va_end (args);
|
|
}
|
|
|
|
return i_result;
|
|
}
|
|
#endif
|
|
|
|
|
|
void m3_GetErrorInfo (IM3Runtime i_runtime, M3ErrorInfo* info)
|
|
{
|
|
*info = i_runtime->error;
|
|
|
|
m3_ResetErrorInfo (i_runtime);
|
|
}
|
|
|
|
|
|
void m3_ResetErrorInfo (IM3Runtime i_runtime)
|
|
{
|
|
M3_INIT(i_runtime->error);
|
|
i_runtime->error.message = "";
|
|
}
|
|
|
|
|
|
void GetStackInfo (M3StackInfo * io_info)
|
|
{
|
|
io_info->startAddr = (void *) io_info;
|
|
|
|
bool stackGrowsDown = false;
|
|
stackGrowsDown = io_info->startAddr > (void *) & stackGrowsDown;
|
|
|
|
if (stackGrowsDown)
|
|
io_info->stackSize *= -1;
|
|
}
|
|
|
|
|
|
M3StackInfo m3_GetNativeStackInfo (i32 i_stackSize)
|
|
{
|
|
M3StackInfo info = { NULL, i_stackSize };
|
|
GetStackInfo (& info);
|
|
|
|
return info;
|
|
}
|
|
|
|
const uint8_t * m3_GetMemory (IM3Runtime i_runtime, uint32_t * o_memorySizeInBytes, uint32_t i_memoryIndex)
|
|
{
|
|
uint8_t * memory = NULL;
|
|
d_m3Assert (i_memoryIndex == 0);
|
|
|
|
if (i_runtime)
|
|
{
|
|
u32 size = (u32) i_runtime->memory.mallocated->length;
|
|
|
|
if (o_memorySizeInBytes)
|
|
* o_memorySizeInBytes = size;
|
|
|
|
if (size)
|
|
memory = m3MemData (i_runtime->memory.mallocated);
|
|
}
|
|
|
|
return memory;
|
|
}
|