void printrolechanges(struct heap_state *heap, struct rolemethod *rm) {
struct genhashtable *rolechanges=rm->rolechanges;
struct geniterator *it=gengetiterator(rolechanges);
while(1) {
struct rolechangesum *rcs=(struct rolechangesum *)gennext(it);
struct rolechangeheader *rch;
struct rolechangepath *rcp;
if (rcs==NULL) break;
fprintf(heap->methodfile, "%s -> %s ",rcs->origrole, rcs->newrole);
rch=(struct rolechangeheader *)gengettable(rolechanges, rcs);
rcp=rch->rcp;
while(rcp!=NULL) {
fprintf(heap->methodfile," Path: ");
if (rcp->exact==rm->numberofcalls)
fprintf(heap->methodfile,"Exact ");
if (rcp->inner==2)
fprintf(heap->methodfile,"Inner ");
else if(rcp->inner==1)
fprintf(heap->methodfile,"Maybe Inner ");
printeffectregexpr(heap,rcp->expr);
fprintf(heap->methodfile,"\n");
rcp=rcp->next;
}
}
genfreeiterator(it);
}
int printtype(collection_type *collection_ptr,struct genhashtable *ght)
{
int j=0;
int offset=0;
int value=0;
struct valuepair *vp=NULL;
if (gencontains(ght,collection_ptr->name))
vp=(struct valuepair *)gengettable(ght,collection_ptr->name);
if (vp!=NULL)
collection_ptr=(collection_type*) dwarf_entry_array[vp->index].entry_ptr;
for(j=0;j<collection_ptr->num_members;j++) {
dwarf_entry *entry=collection_ptr->members[j];
if (entry->tag_name==DW_TAG_inheritance) {
inherit * inherit_ptr=(inherit *)entry->entry_ptr;
if (inherit_ptr->data_member_location>offset) {
printf(" reserved byte[%ld];\n",inherit_ptr->data_member_location-offset);
offset=inherit_ptr->data_member_location;
}
{
dwarf_entry *type=inherit_ptr->target_ptr;
collection_type *c_ptr=(collection_type*)type->entry_ptr;
offset+=printtype(c_ptr,ght);
}
} else {
member * member_ptr=(member *)entry->entry_ptr;
char *name=member_ptr->name;
char *newname=NULL;
dwarf_entry *type=member_ptr->type_ptr;
char *typestr=printname(type,GETTYPE);
char *poststr=printname(type,POSTNAME);
if (member_ptr->data_member_location>offset) {
printf(" reserved byte[%ld];\n",member_ptr->data_member_location-offset);
offset=member_ptr->data_member_location;
}
offset+=getsize(type);
newname=escapestr(name);
{
char buf[512];
char *dtype;
sprintf(buf, "%s.%s\0", collection_ptr->name,newname);
if (arrayt!=NULL&&gencontains(arrayt, &buf)) {
genputtable(arraytype, buf, typestr);
dtype=deref(typestr);
printf(" %s_array * %s%s;\n",dtype,newname,poststr);
free(dtype);
} else
printf(" %s %s%s;\n",typestr,newname,poststr);
}
free(newname);
}
}
return offset;
}
struct rolemethod * methodaddtable(struct heap_state * heap , struct rolemethod *method) {
if (gencontains(heap->methodtable, method)) {
struct rolemethod * retval=gengettable(heap->methodtable, method);
methodfree(method);
return retval;
} else {
genputtable(heap->methodtable, method,method);
return method;
}
}
void dotrolemethod(struct genhashtable * htable, struct genhashtable *reverseroletable, struct rolemethod *rm) {
int i;
struct geniterator * it=gengetiterator(rm->rolechanges);
while(1) {
struct rolechangesum * rcs=(struct rolechangesum *) gennext(it);
struct role* role;
char buf[600];
struct rolechangeheader *rch=NULL;
if (rcs==NULL) break;
rch=(struct rolechangeheader *)gengettable(rm->rolechanges,rcs);
if (rch->inner) {
role=(struct role *)gengettable(reverseroletable, rcs->origrole);
sprintf(buf,"%s.%s\\n%s", rm->methodname->classname->classname,
rm->methodname->methodname, rm->methodname->signature);
addtransition(htable, role->class, rcs->origrole,
buf ,rcs->newrole,1);
}
}
void outputinfo(struct namer* namer, struct genhashtable *calltable, struct genhashtable *statictable) {
FILE *classfile=fopen("fs-class","w");
FILE *methodfile=fopen("fs-method","w");
FILE *fieldfile=fopen("fs-field","w");
FILE *callgraphfile=fopen("fs-callgraph","w");
struct geniterator *it=gengetiterator(namer->classtable);
while(1) {
struct classname *cn=gennext(it);
if (cn==NULL)
break;
fprintf(classfile, "%s ", cn->classname);
}
genfreeiterator(it);
it=gengetiterator(namer->methodtable);
while(1) {
struct methodname *mn=gennext(it);
if (mn==NULL)
break;
fprintf(methodfile, "%s.%s%s %d ", mn->classname->classname, mn->methodname, mn->signature, *((int *) gengettable(statictable, mn)));
}
genfreeiterator(it);
it=gengetiterator(namer->fieldtable);
while(1) {
struct fieldname *fn=gennext(it);
if (fn==NULL)
break;
fprintf(fieldfile, "%s %s %s ", fn->classname->classname, fn->fieldname, fn->fielddesc->fielddesc);
}
genfreeiterator(it);
it=gengetiterator(calltable);
while(1) {
struct methodname *mn=gennext(it);
struct methodchain *mc=NULL;
if (mn==NULL)
break;
mc=gengettable(calltable, mn);
while(mc!=NULL) {
fprintf(callgraphfile, "%s.%s%s ", mn->classname->classname, mn->methodname, mn->signature);
fprintf(callgraphfile, "%s.%s%s ", mc->method->classname->classname, mc->method->methodname, mc->method->signature);
mc=mc->caller;
}
}
genfreeiterator(it);
fclose(callgraphfile);
fclose(classfile);
fclose(methodfile);
fclose(fieldfile);
}
struct referencelist * calculatedominators(struct genhashtable * dommapping,struct heap_object *ho) {
struct referencelist *rl=ho->rl;
struct referencelist *dominators=NULL;
while(rl!=NULL) {
if ((*((int*)gengettable(dommapping, (rl->lv!=NULL)?((void *)rl->lv):((void *)rl->gl))))==1) {
struct referencelist * tmpptr=(struct referencelist *)calloc(1, sizeof(struct referencelist));
tmpptr->lv=rl->lv;
tmpptr->gl=rl->gl;
tmpptr->next=dominators;
dominators=tmpptr;
}
rl=rl->next;
}
return dominators;
}
// We will utilize this information to pause the target program at
// function entrances. For further information on how Fjalar
// determines the address for function entrances please see the
// "HANDLING FUNCTION ENTRY" comment below. This is called from
// mc_translate.c.
void handle_possible_entry(MCEnv* mce, Addr64 addr, IRSB* bb_orig) {
// REMEMBER TO ALWAYS UPDATE THIS regardless of whether this is
// truly a function entry so that handle_possible_exit() can work
// properly:
currentAddr = (Addr)addr;
if(!fjalar_gcc3) {
FunctionEntry *entry = gengettable(FunctionTable, (void *)(Addr)addr);
if(entry) {
find_entry_pt(bb_orig, entry);
}
}
// We're not splitting entry handling based on GCC version.
// for GCC 3.x we're going to enter at the instruction
// corresponding to the first line of code in a function
// (f->entryPC in Fjalar's terms)
// For GCC 4.x we're going to use a special heuristic for
// determining the instruction to enter at. See comment
// "HANDLING FUNCTION ENTRY" above find_entry_pt()
if(fjalar_gcc3) {
/* If this is the very first instruction in the function, add a call
to the prime_function helper. */
handle_possible_entry_func(mce, addr, FunctionTable,
"prime_function",
&prime_function);
/* If this is the first instruction in the function after the prolog
(not exclusive with the condition above), add a call to the
enter_function helper. */
handle_possible_entry_func(mce, addr, FunctionTable_by_entryPC,
"enter_function",
&enter_function);
} else {
handle_possible_entry_func(mce, addr, FunctionTable_by_endOfBb,
"enter_function",
&enter_function);
}
}
void mergerolechanges(struct heap_state *heap) {
struct geniterator *it=gengetiterator(heap->methodlist->rolechangetable);
while(1) {
struct rolechange *rc=(struct rolechange *)gennext(it);
struct method *method=heap->methodlist;
int inner=2;
if (rc==NULL)
break;
while(method!=NULL) {
struct rolemethod *rm=method->rm;
struct genhashtable * rolechanges=rm->rolechanges;
struct rolechangesum *rcs=(struct rolechangesum *)calloc(1,sizeof(struct rolechangesum));
struct rolechangeheader *rch;
struct effectregexpr *ere=NULL;
struct rolechangepath *rcp;
if (!(heap->options&OPTION_NORCEXPR))
ere=buildregexpr(method->pathtable, rc->uid);
rcs->origrole=copystr(rc->origrole);
rcs->newrole=copystr(rc->newrole);
if (!gencontains(rolechanges, rcs)) {
rch=(struct rolechangeheader *)calloc(1,sizeof(struct rolechangeheader));
if (inner)
rch->inner=1;
genputtable(rolechanges,rcs,rch);
} else {
rch=(struct rolechangeheader *) gengettable(rolechanges,rcs);
if (inner)
rch->inner=1;
free(rcs->origrole);
free(rcs->newrole);
free(rcs);
}
/* rch points to appropriate rolechangeheader */
/* ere points to our regular expression */
rcp=rch->rcp;
if (!(heap->options&OPTION_NORCEXPR)) {
while(rcp!=NULL) {
struct effectregexpr *ere2=rcp->expr;
struct effectregexpr *erem=mergeeffectregexpr(ere,ere2);
if (erem!=NULL) {
rcp->expr=erem;
if ((rcp->inner||inner)&&((inner==0)||(rcp->inner==0))) {
rcp->inner=1;
}
/*Update count */
if ((rcp->exact+1)==rm->numberofcalls)
rcp->exact=rm->numberofcalls;
if (rcp->exact<rm->numberofcalls)
rcp->exact=0;
freeeffectregexpr(ere2);
freeeffectregexpr(ere);
break;
}
rcp=rcp->next;
}
if(rcp==NULL) {
/* Couldn't merge in */
struct rolechangepath *rcp2=(struct rolechangepath *)calloc(1, sizeof(struct rolechangepath));
rcp2->expr=ere;
if(rm->numberofcalls==1)
rcp2->exact=1;
rcp2->next=rch->rcp;
rcp2->inner=inner;
rch->rcp=rcp2;
}
}
method=method->caller;
inner=0;
}
free(rc->origrole);
free(rc->newrole);
free(rc);
}
genfreeiterator(it);
genfreehashtable(heap->methodlist->rolechangetable);
heap->methodlist->rolechangetable=NULL;
}
void enter_function(FunctionEntry* f)
{
FunctionExecutionState* newEntry;
extern FunctionExecutionState* curFunctionExecutionStatePtr;
ThreadId tid = VG_(get_running_tid)();
Addr stack_ptr= VG_(get_SP)(tid);
Addr frame_ptr = 0; /* E.g., %ebp */
int local_stack, size;
FJALAR_DPRINTF("[enter_function] startPC is: %x, entryPC is: %x, cu_base: %p\n",
(UInt)f->startPC, (UInt)f->entryPC,(void *)f->cuBase);
FJALAR_DPRINTF("Value of edi: %lx, esi: %lx, edx: %lx, ecx: %lx\n",
(long)VG_(get_xDI)(tid), (long)VG_(get_xSI)(tid), (long)VG_(get_xDX)(tid), (long)VG_(get_xCX)(tid));
// Determine the frame pointer for this function using DWARF
// location lists. This is a "virtual frame pointer" in that it is
// used by the DWARF debugging information in providing the address
// of formal parameters and local variables, but it may or may not
// correspond to an actual frame pointer in the architecture. For
// example: This will not always return %xbp on x86{-64} platforms
// and *SHOULD*(untested) work with the -fomit-frame-pointer flag in GCC
//
// It usually points just above the function return address. The
// .debug_loc info tells how to find (calculate) the frame base
// at any point in the program. (markro)
if(f->locList) {
Addr eip = f->entryPC;
location_list *ll;
eip = eip - f->cuBase;
FJALAR_DPRINTF("\tCurrent EIP is: %x\n", (UInt)eip);
FJALAR_DPRINTF("\tLocation list based function(offset from base: %x). offset is %lu\n",(UInt)eip, f->locListOffset);
if (gencontains(loc_list_map, (void *)f->locListOffset)) {
ll = gengettable(loc_list_map, (void *)f->locListOffset);
// (comment added 2009)
// HACK. g++ and GCC handle location lists differently. GCC puts lists offsets
// relative to the compilation unit, g++ uses the actual address. I'm going to
// compare the location list ranges both to the cu_base offset, as well as
// the function's entry point. This might break if there's every a case
// where the compilation unit offset is a valid address in the program
while(ll &&
!(((ll->begin <= eip) && (ll->end >= eip)) ||
((ll->begin <= f->entryPC) && (ll->end >= f->entryPC)))) {
FJALAR_DPRINTF("\tExamining loc list entry: %x - %x - %x\n", (UInt)ll->offset, (UInt)ll->begin, (UInt)ll->end);
ll = ll->next;
}
if(ll) {
FJALAR_DPRINTF("\tFound location list entry, finding location corresponding to dwarf #: %d with offset: %lld\n", ll->atom, ll->atom_offset);
// (comment added 2013)
// It turns out it might not be just the contents of a register. Some
// 32bit x86 code does some tricky stack alignment and has to save a
// pointer to the orginal stack frame. This means we get passed a
// DW_OP_deref instead of a DW_OP_breg. The tricky bit is we don't
// want to go back to that address because it probably won't be equal
// to the local frame pointer due to the stack alignment. So the HACK
// is to just assume the frame pointer is at EBP+8 like normal. (markro)
if (ll->atom == DW_OP_deref) {
ll->atom = DW_OP_breg5;
ll->atom_offset = 8;
}
if(get_reg[ll->atom - DW_OP_breg0]) {
frame_ptr = (*get_reg[ll->atom - DW_OP_breg0])(tid) + ll->atom_offset;
}
}
}
}
// This is the old code to determine the frame. Fallback to it if we don't
// have a frame_base from the location_list path. This should keep GCC 3 working
// fine.
if(frame_ptr == 0) {
if (f != primed_function) {
printf("No location list or frame pointer giving up(Mangled name: %s)\n", f->mangled_name);
return;
}
primed_function = 0;
if (f->entryPC != f->startPC) {
/* Prolog has run, so just use the real %ebp */
frame_ptr = VG_(get_FP)(VG_(get_running_tid)());
} else {
FJALAR_DPRINTF("Faking prolog\n");
/* Don't know about prolog, so fake its effects, given we know that
ESP hasn't yet been modified: */
// Looks like we never get here for amd64 as -4 is clearly wrong. (10/26/2015)
frame_ptr = stack_ptr - 4;
}
}
FJALAR_DPRINTF("\tEnter function: %s - StartPC: %p, EntryPC: %p, frame_ptr: %p\n",
f->fjalar_name, (void *)f->startPC, (void *)f->entryPC, (void *)frame_ptr);
newEntry = fnStackPush(tid);
newEntry->func = f;
newEntry->func->FP = frame_ptr;
newEntry->func->lowestSP = stack_ptr;
newEntry->FP = frame_ptr;
newEntry->lowSP = stack_ptr;
newEntry->lowestSP = stack_ptr;
newEntry->xAX = 0;
newEntry->xDX = 0;
newEntry->FPU = 0;
newEntry->invocation_nonce = cur_nonce++;
newEntry->func->nonce = newEntry->invocation_nonce;
// FJALAR VIRTUAL STACK
// Fjalar maintains a virtual stack for invocation a function. This
// allows Fjalar to provide tools with unaltered values of formal
// parameters at both function entry and exit, regardless of whether
// or not the compiler chooses to use the original formal parameter
// locations as storage for local values.
// Initialize virtual stack and copy parts of the Valgrind stack
// into that virtual stack
local_stack = frame_ptr - stack_ptr + VG_STACK_REDZONE_SZB; /* in our frame */
tl_assert(local_stack >= 0);
FJALAR_DPRINTF("frame_ptr: %p, stack_ptr: %p, VG_STACK_REDZONE: %d\n", (void *)frame_ptr, (void *)stack_ptr, VG_STACK_REDZONE_SZB);
// The virtual stack consists of:
// (1) local_stack: the entirety of the function's local stack (the
// memory between the frame pointer and the stack pointer (including the extra
// redzone)
// (2) The return pointer, which is sizeof(Addr) bytes
// (3) The saved base pointer, which is sizeof(Addr) bytes
// (4) All formal parameters passed on the stack, which is
// f->formalParamStackByteSize bytes
// Let's be conservative in how much we copy over to the Virtual stack. Due to the
// stack alignment operations in main, we may need as much as 16 bytes over the above.
size = local_stack + f->formalParamStackByteSize + sizeof(Addr)*2 + 32;/* plus stuff in caller's*/
FJALAR_DPRINTF("local_stack: %p, arg_size: %x\n", (void *)(frame_ptr - f->formalParamLowerStackByteSize),
f->formalParamLowerStackByteSize);
int delta = stack_ptr - (frame_ptr - f->formalParamLowerStackByteSize);
if (delta < 0 )
delta = 0;
tl_assert(size >= 0);
if (size != 0) {
newEntry->virtualStack = VG_(calloc)("fjalar_main.c: enter_func", size, sizeof(char));
newEntry->virtualStackByteSize = size;
newEntry->virtualStackFPOffset = local_stack;
clear_all_tags_in_range(stack_ptr - VG_STACK_REDZONE_SZB, VG_STACK_REDZONE_SZB - delta);
VG_(memcpy)(newEntry->virtualStack,
(char*)stack_ptr - VG_STACK_REDZONE_SZB, size);
// VERY IMPORTANT!!! Copy all the A & V bits over the real stack to
// virtualStack!!! (As a consequence, this copies over the tags
// as well - look in mc_main.c). Note that the way do this means
// that the copy is now guest-accessible, if they guessed the
// VG_(calloc)ed address, which is a bit weird. It would be more
// elegant to copy the metadata to an inaccessible place, but that
// would be more work.
FJALAR_DPRINTF("Copying over stack [%p] -> [%p] %d bytes\n",(void *)(stack_ptr - VG_STACK_REDZONE_SZB), (void *)newEntry->virtualStack, size);
mc_copy_address_range_state(stack_ptr - VG_STACK_REDZONE_SZB,
(Addr)(newEntry->virtualStack), size);
newEntry->func->guestStackStart = stack_ptr - VG_STACK_REDZONE_SZB;
newEntry->func->guestStackEnd = newEntry->func->guestStackStart + size;
newEntry->func->lowestVirtSP = (Addr)newEntry->virtualStack;
}
else {
printf("Obtained a stack size of 0 for Function: %s. Aborting\n", f->fjalar_name);
tl_assert(0);
}
// Do this AFTER initializing virtual stack and lowestSP
curFunctionExecutionStatePtr = newEntry;
fjalar_tool_handle_function_entrance(newEntry);
}
// This inserts an IR Statement responsible for calling func
// code before the instruction at addr is executed. This is primarily
// used for inserting the call to enter_function on function entry.
// It is also used for handling of 'function priming' for GCC 3 (see
// comment above prime_function). The result of looking up addr in
// table will be passed to func as it's only argument. This function
// does nothing if it is unable to successfully look up addr in the
// provided table.
static void handle_possible_entry_func(MCEnv *mce, Addr64 addr,
struct genhashtable *table,
const char *func_name,
entry_func func) {
IRDirty *di;
FunctionEntry *entry = gengettable(table, (void *)(Addr)addr);
if(!entry) {
return;
}
// If fjalar_trace_prog_pts_filename is on (we are using a ppt list
// file), then DO NOT generate IR code to call helper functions for
// functions whose name is NOT located in prog_pts_tree. It's faster
// to filter them out at translation-time instead of run-time
if (entry && (!fjalar_trace_prog_pts_filename ||
prog_pts_tree_entry_found(entry))) {
UWord entry_w = (UWord)entry;
di = unsafeIRDirty_0_N(1/*regparms*/, func_name, func,
mkIRExprVec_1(IRExpr_Const(IRConst_UWord(entry_w))));
// For function entry, we are interested in observing the stack
// and frame pointers so make sure that they're updated by setting
// the proper annotations:
entry->entryPC = addr;
FJALAR_DPRINTF("Found a valid entry point at %x for\n", (UInt)addr);
// We need all general purpose registers.
di->nFxState = 9;
vex_bzero(&di->fxState, sizeof(di->fxState));
di->fxState[0].fx = Ifx_Read;
di->fxState[0].offset = mce->layout->offset_SP;
di->fxState[0].size = mce->layout->sizeof_SP;
di->fxState[1].fx = Ifx_Read;
di->fxState[1].offset = mce->layout->offset_FP;
di->fxState[1].size = mce->layout->sizeof_FP;
di->fxState[2].fx = Ifx_Read;
di->fxState[2].offset = mce->layout->offset_IP;
di->fxState[2].size = mce->layout->sizeof_IP;
di->fxState[3].fx = Ifx_Read;
di->fxState[3].offset = mce->layout->offset_xAX;
di->fxState[3].size = mce->layout->sizeof_xAX;
di->fxState[4].fx = Ifx_Read;
di->fxState[4].offset = mce->layout->offset_xBX;
di->fxState[4].size = mce->layout->sizeof_xBX;
di->fxState[5].fx = Ifx_Read;
di->fxState[5].offset = mce->layout->offset_xCX;
di->fxState[5].size = mce->layout->sizeof_xCX;
di->fxState[6].fx = Ifx_Read;
di->fxState[6].offset = mce->layout->offset_xDX;
di->fxState[6].size = mce->layout->sizeof_xDX;
di->fxState[7].fx = Ifx_Read;
di->fxState[7].offset = mce->layout->offset_xSI;
di->fxState[7].size = mce->layout->sizeof_xSI;
di->fxState[8].fx = Ifx_Read;
di->fxState[8].offset = mce->layout->offset_xDI;
di->fxState[8].size = mce->layout->sizeof_xDI;
stmt('V', mce, IRStmt_Dirty(di) );
}
}
void initializeTypeArray()
{
int i;
dwarf_entry * cur_entry;
struct genhashtable * ght=genallocatehashtable((unsigned int (*)(void *)) & hashstring,(int (*)(void *,void *)) &equivalentstrings);
struct genhashtable * sht=NULL;
if (rootfile!=NULL) {
char buf[512];
char a;
int fd=open(rootfile,O_RDONLY);
int offset=0;
sht=genallocatehashtable((unsigned int (*)(void *)) & hashstring,(int (*)(void *,void *)) &equivalentstrings);
while(1) {
if (read(fd,&a,1)>0) {
if (a!=13&&a!=10)
buf[offset++]=a;
} else
break;
if (offset>0&&(a==13||a==10)) {
buf[offset++]=0;
{
char *str=copystr(buf);
genputtable(sht,str,str);
}
offset=0;
}
}
}
if (arrayfile!=NULL) {
char buf[512];
char sizebuf[512];
char a;
int fd=open(arrayfile,O_RDONLY);
int offset=0;
int readmore=1;
int state=0;
arrayt=genallocatehashtable((unsigned int (*)(void *)) & hashstring,(int (*)(void *,void *)) &equivalentstrings);
arraytype=genallocatehashtable((unsigned int (*)(void *)) & hashstring,(int (*)(void *,void *)) &equivalentstrings);
while(readmore) {
if (read(fd,&a,1)<=0)
readmore=0;
if (readmore) {
if (a==' ') {
state=1;
buf[offset]=0;
offset=0;
} else if (a!=13&&a!=10) {
if (state==0)
buf[offset++]=a;
else
sizebuf[offset++]=a;
}
}
if ((state==1)&&offset>0&&(a==13||a==10||!readmore)) {
state=0;
sizebuf[offset]=0;
{
char *str=copystr(buf);
char *sizestr=copystr(sizebuf);
genputtable(arrayt,str,sizestr);
}
offset=0;
}
}
}
/* Assign names */
for (i = 0; i < dwarf_entry_array_size; i++)
{
cur_entry = &dwarf_entry_array[i];
if (entry_is_type(cur_entry))
{
collection_type* collection_ptr = (collection_type*)(cur_entry->entry_ptr);
int j=0;
int offset=0;
int value=0;
for(j=0;j<collection_ptr->num_members;j++) {
dwarf_entry *entry=collection_ptr->members[j];
if (entry->tag_name==DW_TAG_inheritance) {
value++;
} else {
member * member_ptr=(member *)entry->entry_ptr;
char *name=member_ptr->name;
dwarf_entry *type=member_ptr->type_ptr;
char *typestr=printname(type,GETTYPE);
char *poststr=printname(type,POSTNAME);
if (typestr!=NULL)
value++;
}
}
}
}
for (i = 0; i < dwarf_entry_array_size; i++)
{
cur_entry = &dwarf_entry_array[i];
if (entry_is_type(cur_entry))
{
collection_type* collection_ptr = (collection_type*)(cur_entry->entry_ptr);
int j=0;
int offset=0;
int value=0;
for(j=0;j<collection_ptr->num_members;j++) {
dwarf_entry *entry=collection_ptr->members[j];
if (entry->tag_name==DW_TAG_inheritance) {
value++;
} else {
member * member_ptr=(member *)entry->entry_ptr;
char *name=member_ptr->name;
dwarf_entry *type=member_ptr->type_ptr;
char *typestr=printname(type,GETTYPE);
char *poststr=printname(type,POSTNAME);
if (typestr!=NULL)
value++;
}
}
if (collection_ptr->name!=NULL) {
struct valuepair *vp=NULL;
if (gencontains(ght,collection_ptr->name))
vp=(struct valuepair *)gengettable(ght,collection_ptr->name);
if (vp==NULL||vp->value<value) {
if (vp==NULL) {
vp=(struct valuepair*)calloc(1,sizeof(struct valuepair));
genputtable(ght,collection_ptr->name,vp);
}
vp->value=value;
vp->index=i;
}
}
}
}
assigntype=1;
if (sht!=NULL) {
int repeat=1;
while(repeat) {
repeat=0;
for (i = 0; i < dwarf_entry_array_size; i++) {
cur_entry = &dwarf_entry_array[i];
if (entry_is_type(cur_entry)) {
collection_type* collection_ptr = (collection_type*)(cur_entry->entry_ptr);
int j=0;
int offset=0;
int value=0;
if (!gencontains(sht,collection_ptr->name))
continue;
if (gencontains(ght,collection_ptr->name)) {
struct valuepair *vp=(struct valuepair*)gengettable(ght,collection_ptr->name);
if (vp->index!=i)
continue;
}
for(j=0;j<collection_ptr->num_members;j++) {
dwarf_entry *entry=collection_ptr->members[j];
if (entry->tag_name==DW_TAG_inheritance) {
inherit *in_ptr=(inherit*)collection_ptr->members[j]->entry_ptr;
dwarf_entry *typeptr=in_ptr->target_ptr;
collection_type* sub_ptr = (collection_type*)(typeptr->entry_ptr);
if (!gencontains(sht,sub_ptr->name)) {
repeat=1;
genputtable(sht,sub_ptr->name,sub_ptr->name);
}
} else {
member * member_ptr=(member *)entry->entry_ptr;
char *name=member_ptr->name;
dwarf_entry *type=member_ptr->type_ptr;
char *typestr=printname(type,GETJUSTTYPE);
if (typestr!=NULL&&!gencontains(sht,typestr)) {
repeat=1;
genputtable(sht,typestr,typestr);
}
}
}
}
}
}
}
for (i = 0; i < dwarf_entry_array_size; i++)
{
cur_entry = &dwarf_entry_array[i];
if (entry_is_type(cur_entry))
{
collection_type* collection_ptr = (collection_type*)(cur_entry->entry_ptr);
int j=0;
int offset=0;
if (collection_ptr->name==NULL)
continue;
if (sht!=NULL&&!gencontains(sht,collection_ptr->name))
continue;
if (gencontains(ght,collection_ptr->name)) {
struct valuepair *vp=(struct valuepair*)gengettable(ght,collection_ptr->name);
if (vp->index!=i)
continue;
}
j=0;
printf("structure %s ",collection_ptr->name);
while(j<collection_ptr->num_members&&
collection_ptr->members[j]->tag_name==DW_TAG_inheritance) {
inherit *in_ptr=(inherit*)collection_ptr->members[j]->entry_ptr;
dwarf_entry *typeptr=in_ptr->target_ptr;
collection_type* sub_ptr = (collection_type*)(typeptr->entry_ptr);
if (j==0)
printf("subclass of ");
else
printf(", ");
printf("%s ",sub_ptr->name);
j++;
}
printf("{ \n");
for(j=0;j<collection_ptr->num_members;j++) {
dwarf_entry *entry=collection_ptr->members[j];
if (entry->tag_name==DW_TAG_inheritance) {
inherit * inherit_ptr=(inherit *)entry->entry_ptr;
if (inherit_ptr->data_member_location>offset) {
printf(" reserved byte[%ld];\n",inherit_ptr->data_member_location-offset);
offset=inherit_ptr->data_member_location;
}
{
dwarf_entry *type=inherit_ptr->target_ptr;
collection_type *c_ptr=(collection_type*)type->entry_ptr;
offset+=printtype(c_ptr,ght);
}
} else {
member * member_ptr=(member *)entry->entry_ptr;
char *name=member_ptr->name;
dwarf_entry *type=member_ptr->type_ptr;
char *typestr=printname(type,GETTYPE);
char *poststr=printname(type,POSTNAME);
char *newname=NULL;
if (member_ptr->data_member_location>offset) {
printf(" reserved byte[%ld];\n",member_ptr->data_member_location-offset);
offset=member_ptr->data_member_location;
}
offset+=getsize(type);
newname=escapestr(name);
{
char buf[512];
char *dtype;
sprintf(buf, "%s.%s\0", collection_ptr->name,newname);
if (arrayt!=NULL&&gencontains(arrayt, &buf)) {
genputtable(arraytype, copystr(buf), typestr);
dtype=deref(typestr);
printf(" %s_array * %s%s;\n",dtype,newname,poststr);
free(dtype);
} else
printf(" %s %s%s;\n",typestr,newname,poststr);
}
free(newname);
}
}
if (offset<collection_ptr->byte_size)
printf(" reserved byte[%ld];\n",collection_ptr->byte_size-offset);
printf("}\n\n");
}
}
if (arrayt!=NULL) {
struct geniterator * gi=gengetiterator(arrayt);
while(1) {
char * str=(char *)gennext(gi);
char *size=NULL;
char *typestr=NULL;
if (str==NULL)
break;
size=(char *)gengettable(arrayt,str);
typestr=deref((char *)gengettable(arraytype,str));
printf("structure %s_array {\n",typestr);
printf(" %s elem[%s];\n",typestr,size);
printf("}\n");
free(typestr);
}
genfreeiterator(gi);
}
}
void fastscan() {
struct methodchain *methodstack=NULL;
struct namer *namer=allocatenamer();
struct genhashtable *calltable=genallocatehashtable((int (*)(void *)) &hashmethod, (int (*)(void *,void *)) &comparemethod);
struct genhashtable *statictable=genallocatehashtable((int (*)(void *)) &hashmethod, (int (*)(void *,void *)) &comparemethod);
while(1) {
char *line=getline();
#ifdef DEBUG
printf("------------------------------------------------------\n");
#endif
if (line==0) {
outputinfo(namer, calltable,statictable);
return;
}
#ifdef DEBUG
printf("[%s]\n",line);
#endif
switch(line[0]) {
case 'C':
break;
case 'O':
break;
case 'N':
{
/* Natively created object...may not have pointer to it*/
char buf[1000];
sscanf(line,"NI: %s",buf);
getclass(namer,buf);
}
break;
case 'U':
{
/* New object*/
char buf[1000];
sscanf(line,"UI: %s",buf);
getclass(namer,buf);
}
break;
case 'K':
break;
case 'L':
/* Do Load */
{
struct localvars * lv=(struct localvars *) calloc(1, sizeof(struct localvars));
long long uid, objuid;
char fieldname[600], classname[600], fielddesc[600];
sscanf(line,"LF: %s %ld %s %lld %s %s %s %lld",lv->name,&lv->linenumber, lv->sourcename, &objuid, classname, fieldname, fielddesc, &uid);
getfield(namer,classname, fieldname,fielddesc);
}
break;
case 'G':
/* Do Array Load */
break;
case 'M':
/* Mark Local*/
break;
case 'I':
/* Enter Method*/
{
struct methodchain* methodchain=(struct methodchain *) calloc(1,sizeof(struct methodchain));
char classname[600], methodname[600],signature[600];
int isStatic;
sscanf(line,"IM: %s %s %s %d", classname, methodname, signature, &isStatic);
methodchain->method=getmethod(namer, classname, methodname, signature);
methodchain->caller=methodstack;
if (!gencontains(statictable, methodchain->method)) {
int * staticflag=(int *)malloc(sizeof (int));
*staticflag=isStatic;
genputtable(statictable, methodchain->method, staticflag);
}
if (methodstack!=NULL) {
if (!gencontains(calltable, methodchain->method)) {
struct methodchain *mc=(struct methodchain *) calloc(1,sizeof(struct methodchain));
mc->method=methodstack->method;
genputtable(calltable, methodchain->method, mc);
} else {
struct methodchain *tosearch=(struct methodchain *)gengettable(calltable, methodchain->method);
while(tosearch->method!=methodstack->method) {
if (tosearch->caller==NULL) {
struct methodchain *mc=(struct methodchain *) calloc(1,sizeof(struct methodchain));
mc->method=methodstack->method;
tosearch->caller=mc;
break;
}
tosearch=tosearch->caller;
}
}
}
methodstack=methodchain;
}
break;
case 'R':
/* Return from method */
{
struct methodchain* caller=methodstack->caller;
free(methodstack);
methodstack=caller;
}
break;
case 'F':
/* Field Assignment */
{
long long suid;
long long duid;
char classname[1000];
char fieldname[1000];
char descname[1000];
sscanf(line,"FA: %lld %s %s %s %lld", &suid, classname, fieldname, descname, &duid);
getfield(namer, classname, fieldname, descname);
}
break;
case 'A':
/* Array Assignment */
{
long long suid;
long long duid;
long index;
sscanf(line,"AA: %lld %ld %lld", &suid, &index, &duid);
}
break;
}
free(line);
}
}
