landed massive refactoring of the JIT. contexts are actually contexts now, and a higher level structure wraps sp_plugin_t info. on that note, both sp_plugin_t and sp_context_t are entirely opaque, and not even core has access to them. amazingly, i managed to keep binary compatibility here although a large number of functions are deprecated (and core should eventually stop calling them).

NOTE: the JIT is now embeddable out-of-box and usable by other projects which is pretty cool.  I will commit a shell app demonstrating this soon

--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%402400
This commit is contained in:
David Anderson
2008-07-11 08:18:43 +00:00
parent ea1f5e86c0
commit 1a156deca5
69 changed files with 2836 additions and 2801 deletions
+204 -216
View File
@@ -35,12 +35,24 @@
#include "jit_x86.h"
#include "opcode_helpers.h"
#include <x86_macros.h>
#include "jit_version.h"
#include "../jit_version.h"
#include "../sp_vm_engine.h"
#include "../engine2.h"
#include "../BaseRuntime.h"
#include "../sp_vm_basecontext.h"
#if defined USE_UNGEN_OPCODES
#include "ungen_opcodes.h"
#endif
JITX86 g_Jit1;
ISourcePawnEngine *engine = &g_engine1;
inline sp_plugin_t *GETPLUGIN(sp_context_t *ctx)
{
return (sp_plugin_t *)(ctx->vm[JITVARS_PLUGIN]);
}
inline void WriteOp_Move_Pri(JitWriter *jit)
{
//mov eax, edx
@@ -1318,12 +1330,12 @@ inline void WriteOp_Retn(JitWriter *jit)
void ProfCallGate_Begin(sp_context_t *ctx, const char *name)
{
ctx->profiler->OnFunctionBegin(ctx->context, name);
((IProfiler *)ctx->vm[JITVARS_PROFILER])->OnFunctionBegin((IPluginContext *)ctx->vm[JITVARS_BASECTX], name);
}
void ProfCallGate_End(sp_context_t *ctx)
{
ctx->profiler->OnFunctionEnd();
((IProfiler *)ctx->vm[JITVARS_PROFILER])->OnFunctionEnd();
}
const char *find_func_name(sp_plugin_t *plugin, uint32_t offs)
@@ -2264,8 +2276,11 @@ inline void WriteOp_FloatCompare(JitWriter *jit)
cell_t NativeCallback(sp_context_t *ctx, ucell_t native_idx, cell_t *params)
{
sp_native_t *native;
sp_plugin_t *plugin;
plugin = (sp_plugin_t *)ctx->vm[JITVARS_PLUGIN];
native = &ctx->natives[native_idx];
native = &plugin->natives[native_idx];
ctx->n_idx = native_idx;
@@ -2276,15 +2291,18 @@ cell_t NativeCallback(sp_context_t *ctx, ucell_t native_idx, cell_t *params)
return 0;
}
return native->pfn(ctx->context, params);
return native->pfn(GET_CONTEXT(ctx), params);
}
cell_t NativeCallback_Profile(sp_context_t *ctx, ucell_t native_idx, cell_t *params)
{
cell_t val;
sp_native_t *native;
sp_plugin_t *plugin;
native = &ctx->natives[native_idx];
plugin = (sp_plugin_t *)ctx->vm[JITVARS_PLUGIN];
native = &plugin->natives[native_idx];
ctx->n_idx = native_idx;
@@ -2295,9 +2313,9 @@ cell_t NativeCallback_Profile(sp_context_t *ctx, ucell_t native_idx, cell_t *par
return 0;
}
ctx->profiler->OnNativeBegin(ctx->context, native);
val = native->pfn(ctx->context, params);
ctx->profiler->OnNativeEnd();
plugin->profiler->OnNativeBegin(GET_CONTEXT(ctx), native);
val = native->pfn(GET_CONTEXT(ctx), params);
plugin->profiler->OnNativeEnd();
return val;
}
@@ -2307,9 +2325,11 @@ cell_t NativeCallback_Debug(sp_context_t *ctx, ucell_t native_idx, cell_t *param
cell_t save_sp = ctx->sp;
cell_t save_hp = ctx->hp;
sp_plugin_t *pl = GETPLUGIN(ctx);
ctx->n_idx = native_idx;
if (ctx->hp < ctx->heap_base)
if (ctx->hp < (cell_t)pl->data_size)
{
ctx->n_err = SP_ERROR_HEAPMIN;
return 0;
@@ -2321,7 +2341,7 @@ cell_t NativeCallback_Debug(sp_context_t *ctx, ucell_t native_idx, cell_t *param
return 0;
}
if ((uint32_t)ctx->sp >= ctx->mem_size)
if ((uint32_t)ctx->sp >= pl->mem_size)
{
ctx->n_err = SP_ERROR_STACKMIN;
return 0;
@@ -2353,9 +2373,11 @@ cell_t NativeCallback_Debug_Profile(sp_context_t *ctx, ucell_t native_idx, cell_
cell_t save_sp = ctx->sp;
cell_t save_hp = ctx->hp;
sp_plugin_t *pl = GETPLUGIN(ctx);
ctx->n_idx = native_idx;
if (ctx->hp < ctx->heap_base)
if (ctx->hp < (cell_t)pl->data_size)
{
ctx->n_err = SP_ERROR_HEAPMIN;
return 0;
@@ -2367,7 +2389,7 @@ cell_t NativeCallback_Debug_Profile(sp_context_t *ctx, ucell_t native_idx, cell_
return 0;
}
if ((uint32_t)ctx->sp >= ctx->mem_size)
if ((uint32_t)ctx->sp >= pl->mem_size)
{
ctx->n_err = SP_ERROR_STACKMIN;
return 0;
@@ -2396,10 +2418,7 @@ cell_t NativeCallback_Debug_Profile(sp_context_t *ctx, ucell_t native_idx, cell_
static cell_t InvalidNative(IPluginContext *pCtx, const cell_t *params)
{
sp_context_t *ctx = pCtx->GetContext();
ctx->n_err = SP_ERROR_INVALID_NATIVE;
return 0;
return pCtx->ThrowNativeErrorEx(SP_ERROR_INVALID_NATIVE, "Invalid native");
}
jitoffs_t RelocLookup(JitWriter *jit, cell_t pcode_offs, bool relative)
@@ -2457,11 +2476,27 @@ void WriteErrorRoutines(CompData *data, JitWriter *jit)
Write_GetError(jit);
}
sp_context_t *JITX86::CompileToContext(ICompilation *co, int *err)
bool JITX86::Compile(ICompilation *co, BaseRuntime *prt, int *err)
{
CompData *data = (CompData *)co;
sp_plugin_t *plugin = data->plugin;
if (data->plugin == NULL)
{
if (data->debug && !(prt->m_pPlugin->flags & SP_FLAG_DEBUG))
{
if (err != NULL)
{
*err = SP_ERROR_NOTDEBUGGING;
}
co->Abort();
return false;
}
data->SetRuntime(prt);
plugin = data->plugin;
}
/* The first phase is to browse */
uint8_t *code = plugin->pcode;
uint8_t *end_cip = plugin->pcode + plugin->pcode_size;
@@ -2584,8 +2619,8 @@ jit_rewind:
if (data->error_set != SP_ERROR_NONE)
{
*err = data->error_set;
AbortCompilation(co);
return NULL;
co->Abort();
return false;
}
}
/* Write these last because error jumps should be unpredicted, and thus forward */
@@ -2627,23 +2662,29 @@ jit_rewind:
* FOURTH PASS - Context Setup
*************/
sp_context_t *ctx = new sp_context_t;
memset(ctx, 0, sizeof(sp_context_t));
/* setup basics */
ctx->codebase = writer.outbase;
ctx->plugin = plugin;
ctx->vmbase = this;
ctx->flags = (data->debug ? SPFLAG_PLUGIN_DEBUG : 0);
sp_context_t *ctx = data->runtime->GetBaseContext()->GetCtx();
/* Clear out any old cruft */
if (plugin->codebase != NULL)
{
FreePluginVars(data->runtime->m_pPlugin);
FreeContextVars(ctx);
}
plugin->codebase = writer.outbase;
plugin->jit_codesize = codemem;
plugin->jit_memsize = 0;
/* setup memory */
ctx->memory = new uint8_t[plugin->memory];
memcpy(ctx->memory, plugin->data, plugin->data_size);
ctx->mem_size = plugin->memory;
ctx->heap_base = plugin->data_size;
ctx->hp = ctx->heap_base;
ctx->sp = ctx->mem_size - sizeof(cell_t);
ctx->prof_flags = data->profile;
ctx->hp = plugin->data_size;
ctx->sp = plugin->mem_size - sizeof(cell_t);
ctx->frm = ctx->sp;
ctx->n_err = SP_ERROR_NONE;
ctx->n_idx = SP_ERROR_NONE;
plugin->prof_flags = data->profile;
plugin->flags = data->debug ? SPFLAG_PLUGIN_DEBUG : 0;
const char *strbase = plugin->info.stringbase;
uint32_t max, iter;
@@ -2651,39 +2692,42 @@ jit_rewind:
/* relocate public info */
if ((max = plugin->info.publics_num))
{
ctx->publics = new sp_public_t[max];
plugin->publics = new sp_public_t[max];
plugin->jit_memsize += sizeof(sp_public_t) * max;
for (iter=0; iter<max; iter++)
{
ctx->publics[iter].name = strbase + plugin->info.publics[iter].name;
ctx->publics[iter].code_offs = RelocLookup(jit, plugin->info.publics[iter].address, false);
plugin->publics[iter].name = strbase + plugin->info.publics[iter].name;
plugin->publics[iter].code_offs = RelocLookup(jit, plugin->info.publics[iter].address, false);
/* Encode the ID as a straight code offset */
ctx->publics[iter].funcid = (ctx->publics[iter].code_offs << 1);
plugin->publics[iter].funcid = (plugin->publics[iter].code_offs << 1);
}
}
/* relocate pubvar info */
if ((max = plugin->info.pubvars_num))
{
uint8_t *dat = ctx->memory;
ctx->pubvars = new sp_pubvar_t[max];
uint8_t *dat = plugin->memory;
plugin->pubvars = new sp_pubvar_t[max];
plugin->jit_memsize += sizeof(sp_pubvar_t) * max;
for (iter=0; iter<max; iter++)
{
ctx->pubvars[iter].name = strbase + plugin->info.pubvars[iter].name;
ctx->pubvars[iter].offs = (cell_t *)(dat + plugin->info.pubvars[iter].address);
plugin->pubvars[iter].name = strbase + plugin->info.pubvars[iter].name;
plugin->pubvars[iter].offs = (cell_t *)(dat + plugin->info.pubvars[iter].address);
}
}
/* relocate native info */
if ((max = plugin->info.natives_num))
{
ctx->natives = new sp_native_t[max];
plugin->natives = new sp_native_t[max];
plugin->jit_memsize += sizeof(sp_native_t) * max;
for (iter=0; iter<max; iter++)
{
ctx->natives[iter].name = strbase + plugin->info.natives[iter].name;
ctx->natives[iter].pfn = &InvalidNative;
ctx->natives[iter].status = SP_NATIVE_UNBOUND;
ctx->natives[iter].flags = 0;
ctx->natives[iter].user = NULL;
plugin->natives[iter].name = strbase + plugin->info.natives[iter].name;
plugin->natives[iter].pfn = &InvalidNative;
plugin->natives[iter].status = SP_NATIVE_UNBOUND;
plugin->natives[iter].flags = 0;
plugin->natives[iter].user = NULL;
}
}
@@ -2696,20 +2740,22 @@ jit_rewind:
/* relocate files */
max = plugin->debug.files_num;
ctx->files = new sp_debug_file_t[max];
plugin->files = new sp_debug_file_t[max];
plugin->jit_memsize += sizeof(sp_debug_file_t) * max;
for (iter=0; iter<max; iter++)
{
ctx->files[iter].addr = RelocLookup(jit, plugin->debug.files[iter].addr, false);
ctx->files[iter].name = strbase + plugin->debug.files[iter].name;
plugin->files[iter].addr = RelocLookup(jit, plugin->debug.files[iter].addr, false);
plugin->files[iter].name = strbase + plugin->debug.files[iter].name;
}
/* relocate lines */
max = plugin->debug.lines_num;
ctx->lines = new sp_debug_line_t[max];
plugin->lines = new sp_debug_line_t[max];
plugin->jit_memsize += sizeof(sp_debug_line_t) * max;
for (iter=0; iter<max; iter++)
{
ctx->lines[iter].addr = RelocLookup(jit, plugin->debug.lines[iter].addr, false);
ctx->lines[iter].line = plugin->debug.lines[iter].line;
plugin->lines[iter].addr = RelocLookup(jit, plugin->debug.lines[iter].addr, false);
plugin->lines[iter].line = plugin->debug.lines[iter].line;
}
/* relocate arrays */
@@ -2718,7 +2764,8 @@ jit_rewind:
uint8_t *cursor = (uint8_t *)(plugin->debug.symbols);
max = plugin->debug.syms_num;
ctx->symbols = new sp_debug_symbol_t[max];
plugin->symbols = new sp_debug_symbol_t[max];
plugin->jit_memsize += sizeof(sp_debug_symbol_t) * max;
for (iter=0; iter<max; iter++)
{
sym = (sp_fdbg_symbol_t *)cursor;
@@ -2730,52 +2777,50 @@ jit_rewind:
*/
if (sym->codestart > data->codesize)
{
ctx->symbols[iter].codestart = 0;
plugin->symbols[iter].codestart = 0;
} else {
ctx->symbols[iter].codestart = RelocLookup(jit, sym->codestart, false);
plugin->symbols[iter].codestart = RelocLookup(jit, sym->codestart, false);
}
if (sym->codeend > data->codesize)
{
ctx->symbols[iter].codeend = data->codesize;
plugin->symbols[iter].codeend = data->codesize;
} else {
ctx->symbols[iter].codeend = RelocLookup(jit, sym->codeend, false);
plugin->symbols[iter].codeend = RelocLookup(jit, sym->codeend, false);
}
ctx->symbols[iter].name = strbase + sym->name;
ctx->symbols[iter].sym = sym;
plugin->symbols[iter].name = strbase + sym->name;
plugin->symbols[iter].sym = sym;
if (sym->dimcount > 0)
{
cursor += sizeof(sp_fdbg_symbol_t);
arr = (sp_fdbg_arraydim_t *)cursor;
ctx->symbols[iter].dims = arr;
plugin->symbols[iter].dims = arr;
cursor += sizeof(sp_fdbg_arraydim_t) * sym->dimcount;
continue;
}
ctx->symbols[iter].dims = NULL;
plugin->symbols[iter].dims = NULL;
cursor += sizeof(sp_fdbg_symbol_t);
}
}
tracker_t *trk = new tracker_t;
ctx->vm[JITVARS_TRACKER] = trk;
ctx->vm[JITVARS_BASECTX] = data->runtime->GetDefaultContext();
ctx->vm[JITVARS_PROFILER] = g_engine2.GetProfiler();
ctx->vm[JITVARS_PLUGIN] = data->runtime->m_pPlugin;
trk->pBase = (ucell_t *)malloc(1024);
trk->pCur = trk->pBase;
trk->size = 1024 / sizeof(cell_t);
functracker_t *fnc = new functracker_t;
ctx->vm[JITVARS_FUNCINFO] = fnc;
ctx->vm[JITVARS_REBASE] = data->rebase;
fnc->code_size = codemem;
fnc->num_functions = data->func_idx;
plugin->jit_memsize += trk->size;
/* clean up relocation+compilation memory */
data->rebase = NULL;
AbortCompilation(co);
co->Abort();
*err = SP_ERROR_NONE;
return ctx;
return true;
}
SPVM_NATIVE_FUNC JITX86::CreateFakeNative(SPVM_FAKENATIVE_FUNC callback, void *pData)
@@ -2851,126 +2896,149 @@ void JITX86::DestroyFakeNative(SPVM_NATIVE_FUNC func)
engine->FreePageMemory((void *)func);
}
const char *JITX86::GetVMName()
{
return "JIT (x86)";
}
int JITX86::ContextExecute(sp_context_t *ctx, uint32_t code_idx, cell_t *result)
int JITX86::ContextExecute(sp_plugin_t *pl, sp_context_t *ctx, uint32_t code_idx, cell_t *result)
{
typedef int (*CONTEXT_EXECUTE)(sp_context_t *, uint32_t, cell_t *);
CONTEXT_EXECUTE fn = (CONTEXT_EXECUTE)ctx->codebase;
CONTEXT_EXECUTE fn = (CONTEXT_EXECUTE)pl->codebase;
return fn(ctx, code_idx, result);
}
void JITX86::FreeContext(sp_context_t *ctx)
{
engine->FreePageMemory(ctx->codebase);
delete [] ctx->memory;
delete [] ctx->files;
delete [] ctx->lines;
delete [] ctx->natives;
delete [] ctx->publics;
delete [] ctx->pubvars;
delete [] ctx->symbols;
engine->BaseFree(ctx->vm[JITVARS_REBASE]);
free(((tracker_t *)(ctx->vm[JITVARS_TRACKER]))->pBase);
delete (tracker_t *)ctx->vm[JITVARS_TRACKER];
delete (functracker_t *)ctx->vm[JITVARS_FUNCINFO];
delete ctx;
}
ICompilation *JITX86::StartCompilation(sp_plugin_t *plugin)
ICompilation *JITX86::StartCompilation()
{
CompData *data = new CompData;
data->jit_float_table = NULL;
return data;
}
void CompData::SetRuntime(BaseRuntime *runtime)
{
plugin = runtime->m_pPlugin;
uint32_t max_natives = plugin->info.natives_num;
const char *strbase = plugin->info.stringbase;
data->plugin = plugin;
data->inline_level = JIT_INLINE_ERRORCHECKS|JIT_INLINE_NATIVES;
data->error_set = SP_ERROR_NONE;
this->runtime = runtime;
data->jit_float_table = new floattbl_t[max_natives];
inline_level = JIT_INLINE_ERRORCHECKS|JIT_INLINE_NATIVES;
error_set = SP_ERROR_NONE;
jit_float_table = new floattbl_t[max_natives];
for (uint32_t i=0; i<max_natives; i++)
{
const char *name = strbase + plugin->info.natives[i].name;
if (!strcmp(name, "FloatAbs"))
{
data->jit_float_table[i].found = true;
data->jit_float_table[i].index = OP_FABS;
jit_float_table[i].found = true;
jit_float_table[i].index = OP_FABS;
} else if (!strcmp(name, "FloatAdd")) {
data->jit_float_table[i].found = true;
data->jit_float_table[i].index = OP_FLOATADD;
jit_float_table[i].found = true;
jit_float_table[i].index = OP_FLOATADD;
} else if (!strcmp(name, "FloatSub")) {
data->jit_float_table[i].found = true;
data->jit_float_table[i].index = OP_FLOATSUB;
jit_float_table[i].found = true;
jit_float_table[i].index = OP_FLOATSUB;
} else if (!strcmp(name, "FloatMul")) {
data->jit_float_table[i].found = true;
data->jit_float_table[i].index = OP_FLOATMUL;
jit_float_table[i].found = true;
jit_float_table[i].index = OP_FLOATMUL;
} else if (!strcmp(name, "FloatDiv")) {
data->jit_float_table[i].found = true;
data->jit_float_table[i].index = OP_FLOATDIV;
jit_float_table[i].found = true;
jit_float_table[i].index = OP_FLOATDIV;
} else if (!strcmp(name, "float")) {
data->jit_float_table[i].found = true;
data->jit_float_table[i].index = OP_FLOAT;
jit_float_table[i].found = true;
jit_float_table[i].index = OP_FLOAT;
} else if (!strcmp(name, "FloatCompare")) {
data->jit_float_table[i].found = true;
data->jit_float_table[i].index = OP_FLOATCMP;
jit_float_table[i].found = true;
jit_float_table[i].index = OP_FLOATCMP;
} else if (!strcmp(name, "RoundToZero")) {
data->jit_float_table[i].found = true;
data->jit_float_table[i].index = OP_RND_TO_ZERO;
jit_float_table[i].found = true;
jit_float_table[i].index = OP_RND_TO_ZERO;
} else if (!strcmp(name, "RoundToCeil")) {
data->jit_float_table[i].found = true;
data->jit_float_table[i].index = OP_RND_TO_CEIL;
jit_float_table[i].found = true;
jit_float_table[i].index = OP_RND_TO_CEIL;
} else if (!strcmp(name, "RoundToFloor")) {
data->jit_float_table[i].found = true;
data->jit_float_table[i].index = OP_RND_TO_FLOOR;
jit_float_table[i].found = true;
jit_float_table[i].index = OP_RND_TO_FLOOR;
} else if (!strcmp(name, "RoundToNearest")) {
data->jit_float_table[i].found = true;
data->jit_float_table[i].index = OP_RND_TO_NEAREST;
jit_float_table[i].found = true;
jit_float_table[i].index = OP_RND_TO_NEAREST;
}
}
}
ICompilation *JITX86::StartCompilation(BaseRuntime *runtime)
{
CompData *data = new CompData;
data->SetRuntime(runtime);
return data;
}
void JITX86::AbortCompilation(ICompilation *co)
void CompData::Abort()
{
if (((CompData *)co)->rebase)
if (rebase)
{
engine->BaseFree(((CompData *)co)->rebase);
engine->BaseFree(rebase);
}
delete [] ((CompData *)co)->jit_float_table;
delete (CompData *)co;
delete [] jit_float_table;
delete this;
}
bool JITX86::SetCompilationOption(ICompilation *co, const char *key, const char *val)
void JITX86::FreeContextVars(sp_context_t *ctx)
{
CompData *data = (CompData *)co;
free(((tracker_t *)(ctx->vm[JITVARS_TRACKER]))->pBase);
delete (tracker_t *)ctx->vm[JITVARS_TRACKER];
}
void JITX86::FreePluginVars(sp_plugin_t *pl)
{
delete [] pl->files;
delete [] pl->lines;
delete [] pl->natives;
delete [] pl->publics;
delete [] pl->pubvars;
delete [] pl->symbols;
if (pl->codebase != NULL)
{
g_engine1.FreePageMemory(pl->codebase);
pl->codebase = NULL;
}
pl->files = NULL;
pl->lines = NULL;
pl->natives = NULL;
pl->publics = NULL;
pl->pubvars = NULL;
pl->symbols = NULL;
}
bool CompData::SetOption(const char *key, const char *val)
{
if (strcmp(key, SP_JITCONF_DEBUG) == 0)
{
if ((atoi(val) == 1) || !strcmp(val, "yes"))
{
data->debug = true;
debug = true;
} else {
data->debug = false;
debug = false;
}
if (data->debug && !(data->plugin->flags & SP_FLAG_DEBUG))
if (debug && plugin && !(plugin->flags & SP_FLAG_DEBUG))
{
data->debug = false;
debug = false;
return false;
}
return true;
}
else if (strcmp(key, SP_JITCONF_PROFILE) == 0)
{
data->profile = atoi(val);
profile = atoi(val);
/** Callbacks must be profiled to profile functions! */
if ((data->profile & SP_PROF_FUNCTIONS) == SP_PROF_FUNCTIONS)
if ((profile & SP_PROF_FUNCTIONS) == SP_PROF_FUNCTIONS)
{
data->profile |= SP_PROF_CALLBACKS;
profile |= SP_PROF_CALLBACKS;
}
return true;
@@ -2979,83 +3047,3 @@ bool JITX86::SetCompilationOption(ICompilation *co, const char *key, const char
return false;
}
unsigned int JITX86::GetAPIVersion()
{
return SOURCEPAWN_VM_API_VERSION;
}
bool JITX86::FunctionPLookup(const sp_context_t *ctx, uint32_t code_addr, unsigned int *result)
{
uint8_t *rebase = (uint8_t *)ctx->vm[JITVARS_REBASE];
/* Is this within the pcode bounds? */
if (code_addr >= ctx->plugin->pcode_size - sizeof(uint32_t))
{
return false;
}
/* Relocate this */
code_addr = *(jitoffs_t *)(rebase + code_addr);
/* Check if this is in the relocation bounds */
functracker_t *fnc = (functracker_t *)ctx->vm[JITVARS_FUNCINFO];
if (code_addr >= fnc->code_size)
{
return false;
}
/* Get the function info and sanity check */
funcinfo_t *f = (funcinfo_t *)((char *)ctx->codebase + code_addr - sizeof(funcinfo_t));
if (f->magic != JIT_FUNCMAGIC || f->index >= fnc->num_functions)
{
return false;
}
if (result)
{
*result = f->index;
}
return true;
}
bool JITX86::FunctionLookup(const sp_context_t *ctx, uint32_t code_addr, unsigned int *result)
{
/* Check if this is in the relocation bounds */
functracker_t *fnc = (functracker_t *)ctx->vm[JITVARS_FUNCINFO];
if (code_addr >= fnc->code_size)
{
return false;
}
/* Get the function info and sanity check */
funcinfo_t *f = (funcinfo_t *)((char *)ctx->codebase + code_addr - sizeof(funcinfo_t));
if (f->magic != JIT_FUNCMAGIC || f->index >= fnc->num_functions)
{
return false;
}
if (result)
{
*result = f->index;
}
return true;
}
unsigned int JITX86::FunctionCount(const sp_context_t *ctx)
{
functracker_t *fnc = (functracker_t *)ctx->vm[JITVARS_FUNCINFO];
return fnc->num_functions;
}
const char *JITX86::GetVersionString()
{
return SVN_FULL_VERSION;
}
const char *JITX86::GetCPUOptimizations()
{
return "Generic i686";
}