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Code Issues Projects Releases Wiki Activity

Proper warnings for "risky" gotos.

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This commit is contained in:
laubzega 2018-09-28 22:11:09 -07:00 committed by Oliver Schmidt
parent c835f49913
commit c797b3b376
10 changed files with 637 additions and 27 deletions
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3
src/cc65/function.c
View File

@ -87,7 +87,6 @@ static Function* NewFunction (struct SymEntry* Sym)
F->TopLevelSP = 0;
F->RegOffs = RegisterSpace;
F->Flags = IsTypeVoid (F->ReturnType) ? FF_VOID_RETURN : FF_NONE;
F->LocalsBlockCount = 0;
InitCollection (&F->LocalsBlockStack);
@ -524,6 +523,8 @@ void NewFunc (SymEntry* Func)
/* Need a starting curly brace */
ConsumeLCurly ();
/* Make sure there is always something on the stack of local variable blocks */
CollAppend (&CurrentFunc->LocalsBlockStack, 0);
/* Parse local variable declarations if any */

1
src/cc65/function.h
View File

@ -61,7 +61,6 @@ struct Function {
int TopLevelSP; /* SP at function top level */
unsigned RegOffs; /* Register variable space offset */
funcflags_t Flags; /* Function flags */
long LocalsBlockCount; /* Number of blocks with local vars */
Collection LocalsBlockStack; /* Stack of blocks with local vars */
};

17
src/cc65/locals.c
View File

@ -52,6 +52,7 @@
#include "standard.h"
#include "symtab.h"
#include "typeconv.h"
#include "input.h"
@ -270,6 +271,12 @@ static void ParseAutoDecl (Declaration* Decl)
/* Mark the variable as referenced */
Sym->Flags |= SC_REF;
/* Make note of auto variables initialized in current block.
We abuse the Collection somewhat by using it to store line
numbers. */
CollReplace (&CurrentFunc->LocalsBlockStack, (void *)(long)GetCurrentLine (),
CollCount (&CurrentFunc->LocalsBlockStack) - 1);
} else {
/* Non-initialized local variable. Just keep track of
** the space needed.
@ -489,6 +496,9 @@ void DeclareLocals (void)
/* Remember the current stack pointer */
int InitialStack = StackPtr;
/* A place to store info about potential initializations of auto variables */
CollAppend (&CurrentFunc->LocalsBlockStack, 0);
/* Loop until we don't find any more variables */
while (1) {
@ -538,10 +548,9 @@ void DeclareLocals (void)
/* Be sure to allocate any reserved space for locals */
F_AllocLocalSpace (CurrentFunc);
if (InitialStack != StackPtr) {
++CurrentFunc->LocalsBlockCount;
/* Is it ok to abuse Collection in this way? */
CollAppend (&CurrentFunc->LocalsBlockStack, (void *)CurrentFunc->LocalsBlockCount);
/* No auto variables were inited. No new block on the stack then. */
if (CollLast (&CurrentFunc->LocalsBlockStack) == NULL) {
CollPop (&CurrentFunc->LocalsBlockStack);
}
/* In case we've allocated local variables in this block, emit a call to

5
src/cc65/stmt.c
View File

@ -513,6 +513,7 @@ static int CompoundStatement (void)
/* Remember the stack at block entry */
int OldStack = StackPtr;
long OldBlockStackSize = CollCount (&CurrentFunc->LocalsBlockStack);
/* Enter a new lexical level */
EnterBlockLevel ();
@ -535,7 +536,9 @@ static int CompoundStatement (void)
g_space (StackPtr - OldStack);
}
if (OldStack != StackPtr) {
/* If the segment had autoinited variables, let's pop it of a stack
of such blocks. */
if (OldBlockStackSize != CollCount (&CurrentFunc->LocalsBlockStack)) {
CollPop (&CurrentFunc->LocalsBlockStack);
}

2
src/cc65/symentry.c
View File

@ -90,7 +90,7 @@ void FreeSymEntry (SymEntry* E)
if (E->Flags & SC_LABEL) {
for (i = 0; i < CollCount (E->V.L.DefsOrRefs); i++) {
xfree (CollAt(E->V.L.DefsOrRefs, i));
xfree (CollAt (E->V.L.DefsOrRefs, i));
}
DoneCollection (E->V.L.DefsOrRefs);

2
src/cc65/symentry.h
View File

@ -105,7 +105,7 @@ struct LiteralPool;
typedef struct DefOrRef DefOrRef;
struct DefOrRef {
unsigned Line;
long LocalsBlockNum;
long LocalsBlockId;
unsigned Flags;
int StackPtr;
unsigned Depth;

42
src/cc65/symtab.c
View File

@ -668,7 +668,7 @@ DefOrRef* AddDefOrRef(SymEntry* E, unsigned Flags)
DOR = xmalloc (sizeof (DefOrRef));
CollAppend (E->V.L.DefsOrRefs, DOR);
DOR->Line = GetCurrentLine ();
DOR->LocalsBlockNum = (long)CollLast (&CurrentFunc->LocalsBlockStack);
DOR->LocalsBlockId = (long)CollLast (&CurrentFunc->LocalsBlockStack);
DOR->Flags = Flags;
DOR->StackPtr = StackPtr;
DOR->Depth = CollCount (&CurrentFunc->LocalsBlockStack);
@ -677,12 +677,13 @@ DefOrRef* AddDefOrRef(SymEntry* E, unsigned Flags)
return DOR;
}
SymEntry* AddLabelSym (const char* Name, unsigned Flags)
/* Add a goto label to the label table */
{
unsigned i;
DefOrRef *DOR, *NewDOR;
/* We juggle it so much that a shortcut will help with clarity */
Collection *AIC = &CurrentFunc->LocalsBlockStack;
/* Do we have an entry with this name already? */
SymEntry* Entry = FindSymInTable (LabelTab, Name, HashStr (Name));
@ -700,35 +701,40 @@ SymEntry* AddLabelSym (const char* Name, unsigned Flags)
for (i = 0; i < CollCount (Entry->V.L.DefsOrRefs); i++) {
DOR = CollAt (Entry->V.L.DefsOrRefs, i);
if((DOR->Flags & SC_DEF) && (Flags & SC_REF)) {
if ((DOR->Flags & SC_DEF) && (Flags & SC_REF)) {
/* We're processing a goto and here is its destination label.
This means the difference between SP values is already known,
so we simply emit the SP adjustment code. */
if(StackPtr != DOR->StackPtr)
if (StackPtr != DOR->StackPtr) {
g_space (StackPtr - DOR->StackPtr);
}
/* Are we jumping into same or deeper nesting region? That's risky,
so let's emit a warning. */
if (CollCount (&CurrentFunc->LocalsBlockStack) <= DOR->Depth &&
DOR->LocalsBlockNum != (long)CollLast (&CurrentFunc->LocalsBlockStack)) {
Warning ("Goto from line %d to label \'%s\' can result in a "
"trashed stack", DOR->Line, Name);
/* Are we jumping into a block with initalization of an object that
has automatic storage duration? Let's emit a warning. */
if ((long)CollLast (AIC) != DOR->LocalsBlockId &&
(CollCount (AIC) < DOR->Depth ||
(long)CollAt (AIC, DOR->Depth - 1) != DOR->LocalsBlockId)) {
Warning ("Goto at line %d to label %s jumps into a block with "
"initialization of an object that has automatic storage duration.",
GetCurrentLine (), Name);
}
}
if((DOR->Flags & SC_REF) && (Flags & SC_DEF)) {
if ((DOR->Flags & SC_REF) && (Flags & SC_DEF)) {
/* We're processing a label, let's update all gotos encountered
so far */
g_defdatalabel (DOR->LateSP_Label);
g_defdata (CF_CONST | CF_INT, StackPtr - DOR->StackPtr, 0);
/* Are we jumping into same or deeper nesting region? That's risky,
so let's emit a warning. */
if (CollCount (&CurrentFunc->LocalsBlockStack) >= DOR->Depth &&
DOR->LocalsBlockNum != (long)CollLast (&CurrentFunc->LocalsBlockStack)) {
Warning ("Goto from line %d to label \'%s\' can result in a "
"trashed stack", DOR->Line, Name);
}
/* Are we jumping into a block with initalization of an object that
has automatic storage duration? Let's emit a warning. */
if ((long)CollLast (AIC) != DOR->LocalsBlockId &&
(CollCount (AIC) >= DOR->Depth ||
(long)CollLast (AIC) >= DOR->Line))
Warning ("Goto at line %d to label %s jumps into a block with "
"initialization of an object that has automatic storage duration.",
DOR->Line, Name);
}
}

5
test/misc/Makefile
View File

@ -72,6 +72,11 @@ $(WORKDIR)/limits.$1.$2.prg: limits.c $(DIFF)
$(SIM65) $(SIM65FLAGS) $$@ > $(WORKDIR)/limits.$1.out
$(DIFF) $(WORKDIR)/limits.$1.out limits.ref
$(WORKDIR)/goto.$1.$2.prg: goto.c $(DIFF)
$(if $(QUIET),echo misc/goto.$1.$2.prg)
$(CL65) -t sim$2 -$1 -o $$@ $$< 2>$(WORKDIR)/goto.$1.out
$(DIFF) $(WORKDIR)/goto.$1.out goto.ref
# the rest are tests that fail currently for one reason or another
$(WORKDIR)/fields.$1.$2.prg: fields.c | $(WORKDIR)
@echo "FIXME: " $$@ "currently will fail."

437
test/misc/goto.c Normal file
View File

@ -0,0 +1,437 @@
void main () {
goto end;
{
int a = 1;
start:
goto end;
}
goto start;
end:;
}
void f2 () {
int a = 2;
l1:
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
{
int a;
l2:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
{
int a;
l3:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
{
int a;
l4:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
}
l5:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
}
l6:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
}
l7:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
{
int a = 1;
l8:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
{
int a = 1;
l9:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
{
int a = 1;
la:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
}
lb:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
}
lc:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
}
{
int a = 1;
ld:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
{
int a = 1;
le:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
{
int a = 1;
lf:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
}
lg:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
}
lh:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
}
li:;
goto l1;
goto l2;
goto l3;
goto l4;
goto l5;
goto l6;
goto l7;
goto l8;
goto l9;
goto la;
goto lb;
goto lc;
goto ld;
goto le;
goto lf;
goto lg;
goto lh;
goto li;
}
/* Structure of the above function.
void f2 () {
int a = 2;
l1:
{
int a;
l2:;
{
int a;
l3:;
{
int a;
l4:;
}
l5:;
}
l6:;
}
l7:;
{
int a = 1;
l8:;
{
int a = 1;
l9:;
{
int a = 1;
la:;
}
lb:;
}
lc:;
}
{
int a = 1;
ld:;
{
int a = 1;
le:;
{
int a = 1;
lf:;
}
lg:;
}
lh:;
}
li:;
}
*/

150
test/misc/goto.ref Normal file
View File

@ -0,0 +1,150 @@
goto.c(8): Warning: Goto at line 8 to label start jumps into a block with initialization of an object that has automatic storage duration.
goto.c(97): Warning: `a' is defined but never used
goto.c(117): Warning: `a' is defined but never used
goto.c(137): Warning: `a' is defined but never used
goto.c(159): Warning: Goto at line 23 to label l8 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(159): Warning: Goto at line 44 to label l8 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(159): Warning: Goto at line 65 to label l8 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(159): Warning: Goto at line 86 to label l8 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(159): Warning: Goto at line 106 to label l8 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(159): Warning: Goto at line 126 to label l8 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(159): Warning: Goto at line 146 to label l8 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(180): Warning: Goto at line 24 to label l9 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(180): Warning: Goto at line 45 to label l9 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(180): Warning: Goto at line 66 to label l9 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(180): Warning: Goto at line 87 to label l9 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(180): Warning: Goto at line 107 to label l9 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(180): Warning: Goto at line 127 to label l9 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(180): Warning: Goto at line 147 to label l9 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(180): Warning: Goto at line 168 to label l9 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(201): Warning: Goto at line 25 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(201): Warning: Goto at line 46 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(201): Warning: Goto at line 67 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(201): Warning: Goto at line 88 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(201): Warning: Goto at line 108 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(201): Warning: Goto at line 128 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(201): Warning: Goto at line 148 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(201): Warning: Goto at line 169 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(201): Warning: Goto at line 190 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(221): Warning: Goto at line 26 to label lb jumps into a block with initialization of an object that has automatic storage duration.
goto.c(221): Warning: Goto at line 47 to label lb jumps into a block with initialization of an object that has automatic storage duration.
goto.c(221): Warning: Goto at line 68 to label lb jumps into a block with initialization of an object that has automatic storage duration.
goto.c(221): Warning: Goto at line 89 to label lb jumps into a block with initialization of an object that has automatic storage duration.
goto.c(221): Warning: Goto at line 109 to label lb jumps into a block with initialization of an object that has automatic storage duration.
goto.c(221): Warning: Goto at line 129 to label lb jumps into a block with initialization of an object that has automatic storage duration.
goto.c(221): Warning: Goto at line 149 to label lb jumps into a block with initialization of an object that has automatic storage duration.
goto.c(221): Warning: Goto at line 170 to label lb jumps into a block with initialization of an object that has automatic storage duration.
goto.c(231): Warning: Goto at line 231 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(241): Warning: Goto at line 27 to label lc jumps into a block with initialization of an object that has automatic storage duration.
goto.c(241): Warning: Goto at line 48 to label lc jumps into a block with initialization of an object that has automatic storage duration.
goto.c(241): Warning: Goto at line 69 to label lc jumps into a block with initialization of an object that has automatic storage duration.
goto.c(241): Warning: Goto at line 90 to label lc jumps into a block with initialization of an object that has automatic storage duration.
goto.c(241): Warning: Goto at line 110 to label lc jumps into a block with initialization of an object that has automatic storage duration.
goto.c(241): Warning: Goto at line 130 to label lc jumps into a block with initialization of an object that has automatic storage duration.
goto.c(241): Warning: Goto at line 150 to label lc jumps into a block with initialization of an object that has automatic storage duration.
goto.c(250): Warning: Goto at line 250 to label l9 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(251): Warning: Goto at line 251 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(252): Warning: Goto at line 252 to label lb jumps into a block with initialization of an object that has automatic storage duration.
goto.c(263): Warning: Goto at line 28 to label ld jumps into a block with initialization of an object that has automatic storage duration.
goto.c(263): Warning: Goto at line 49 to label ld jumps into a block with initialization of an object that has automatic storage duration.
goto.c(263): Warning: Goto at line 70 to label ld jumps into a block with initialization of an object that has automatic storage duration.
goto.c(263): Warning: Goto at line 91 to label ld jumps into a block with initialization of an object that has automatic storage duration.
goto.c(263): Warning: Goto at line 111 to label ld jumps into a block with initialization of an object that has automatic storage duration.
goto.c(263): Warning: Goto at line 131 to label ld jumps into a block with initialization of an object that has automatic storage duration.
goto.c(263): Warning: Goto at line 151 to label ld jumps into a block with initialization of an object that has automatic storage duration.
goto.c(263): Warning: Goto at line 172 to label ld jumps into a block with initialization of an object that has automatic storage duration.
goto.c(263): Warning: Goto at line 193 to label ld jumps into a block with initialization of an object that has automatic storage duration.
goto.c(263): Warning: Goto at line 214 to label ld jumps into a block with initialization of an object that has automatic storage duration.
goto.c(263): Warning: Goto at line 234 to label ld jumps into a block with initialization of an object that has automatic storage duration.
goto.c(263): Warning: Goto at line 254 to label ld jumps into a block with initialization of an object that has automatic storage duration.
goto.c(271): Warning: Goto at line 271 to label l8 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(272): Warning: Goto at line 272 to label l9 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(273): Warning: Goto at line 273 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(274): Warning: Goto at line 274 to label lb jumps into a block with initialization of an object that has automatic storage duration.
goto.c(275): Warning: Goto at line 275 to label lc jumps into a block with initialization of an object that has automatic storage duration.
goto.c(284): Warning: Goto at line 29 to label le jumps into a block with initialization of an object that has automatic storage duration.
goto.c(284): Warning: Goto at line 50 to label le jumps into a block with initialization of an object that has automatic storage duration.
goto.c(284): Warning: Goto at line 71 to label le jumps into a block with initialization of an object that has automatic storage duration.
goto.c(284): Warning: Goto at line 92 to label le jumps into a block with initialization of an object that has automatic storage duration.
goto.c(284): Warning: Goto at line 112 to label le jumps into a block with initialization of an object that has automatic storage duration.
goto.c(284): Warning: Goto at line 132 to label le jumps into a block with initialization of an object that has automatic storage duration.
goto.c(284): Warning: Goto at line 152 to label le jumps into a block with initialization of an object that has automatic storage duration.
goto.c(284): Warning: Goto at line 173 to label le jumps into a block with initialization of an object that has automatic storage duration.
goto.c(284): Warning: Goto at line 194 to label le jumps into a block with initialization of an object that has automatic storage duration.
goto.c(284): Warning: Goto at line 215 to label le jumps into a block with initialization of an object that has automatic storage duration.
goto.c(284): Warning: Goto at line 235 to label le jumps into a block with initialization of an object that has automatic storage duration.
goto.c(284): Warning: Goto at line 255 to label le jumps into a block with initialization of an object that has automatic storage duration.
goto.c(284): Warning: Goto at line 277 to label le jumps into a block with initialization of an object that has automatic storage duration.
goto.c(292): Warning: Goto at line 292 to label l8 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(293): Warning: Goto at line 293 to label l9 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(294): Warning: Goto at line 294 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(295): Warning: Goto at line 295 to label lb jumps into a block with initialization of an object that has automatic storage duration.
goto.c(296): Warning: Goto at line 296 to label lc jumps into a block with initialization of an object that has automatic storage duration.
goto.c(305): Warning: Goto at line 30 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(305): Warning: Goto at line 51 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(305): Warning: Goto at line 72 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(305): Warning: Goto at line 93 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(305): Warning: Goto at line 113 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(305): Warning: Goto at line 133 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(305): Warning: Goto at line 153 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(305): Warning: Goto at line 174 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(305): Warning: Goto at line 195 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(305): Warning: Goto at line 216 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(305): Warning: Goto at line 236 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(305): Warning: Goto at line 256 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(305): Warning: Goto at line 278 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(305): Warning: Goto at line 299 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(313): Warning: Goto at line 313 to label l8 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(314): Warning: Goto at line 314 to label l9 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(315): Warning: Goto at line 315 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(316): Warning: Goto at line 316 to label lb jumps into a block with initialization of an object that has automatic storage duration.
goto.c(317): Warning: Goto at line 317 to label lc jumps into a block with initialization of an object that has automatic storage duration.
goto.c(325): Warning: Goto at line 31 to label lg jumps into a block with initialization of an object that has automatic storage duration.
goto.c(325): Warning: Goto at line 52 to label lg jumps into a block with initialization of an object that has automatic storage duration.
goto.c(325): Warning: Goto at line 73 to label lg jumps into a block with initialization of an object that has automatic storage duration.
goto.c(325): Warning: Goto at line 94 to label lg jumps into a block with initialization of an object that has automatic storage duration.
goto.c(325): Warning: Goto at line 114 to label lg jumps into a block with initialization of an object that has automatic storage duration.
goto.c(325): Warning: Goto at line 134 to label lg jumps into a block with initialization of an object that has automatic storage duration.
goto.c(325): Warning: Goto at line 154 to label lg jumps into a block with initialization of an object that has automatic storage duration.
goto.c(325): Warning: Goto at line 175 to label lg jumps into a block with initialization of an object that has automatic storage duration.
goto.c(325): Warning: Goto at line 196 to label lg jumps into a block with initialization of an object that has automatic storage duration.
goto.c(325): Warning: Goto at line 217 to label lg jumps into a block with initialization of an object that has automatic storage duration.
goto.c(325): Warning: Goto at line 237 to label lg jumps into a block with initialization of an object that has automatic storage duration.
goto.c(325): Warning: Goto at line 257 to label lg jumps into a block with initialization of an object that has automatic storage duration.
goto.c(325): Warning: Goto at line 279 to label lg jumps into a block with initialization of an object that has automatic storage duration.
goto.c(333): Warning: Goto at line 333 to label l8 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(334): Warning: Goto at line 334 to label l9 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(335): Warning: Goto at line 335 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(336): Warning: Goto at line 336 to label lb jumps into a block with initialization of an object that has automatic storage duration.
goto.c(337): Warning: Goto at line 337 to label lc jumps into a block with initialization of an object that has automatic storage duration.
goto.c(340): Warning: Goto at line 340 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(345): Warning: Goto at line 32 to label lh jumps into a block with initialization of an object that has automatic storage duration.
goto.c(345): Warning: Goto at line 53 to label lh jumps into a block with initialization of an object that has automatic storage duration.
goto.c(345): Warning: Goto at line 74 to label lh jumps into a block with initialization of an object that has automatic storage duration.
goto.c(345): Warning: Goto at line 95 to label lh jumps into a block with initialization of an object that has automatic storage duration.
goto.c(345): Warning: Goto at line 115 to label lh jumps into a block with initialization of an object that has automatic storage duration.
goto.c(345): Warning: Goto at line 135 to label lh jumps into a block with initialization of an object that has automatic storage duration.
goto.c(345): Warning: Goto at line 155 to label lh jumps into a block with initialization of an object that has automatic storage duration.
goto.c(345): Warning: Goto at line 176 to label lh jumps into a block with initialization of an object that has automatic storage duration.
goto.c(345): Warning: Goto at line 197 to label lh jumps into a block with initialization of an object that has automatic storage duration.
goto.c(345): Warning: Goto at line 218 to label lh jumps into a block with initialization of an object that has automatic storage duration.
goto.c(345): Warning: Goto at line 238 to label lh jumps into a block with initialization of an object that has automatic storage duration.
goto.c(345): Warning: Goto at line 258 to label lh jumps into a block with initialization of an object that has automatic storage duration.
goto.c(353): Warning: Goto at line 353 to label l8 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(354): Warning: Goto at line 354 to label l9 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(355): Warning: Goto at line 355 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(356): Warning: Goto at line 356 to label lb jumps into a block with initialization of an object that has automatic storage duration.
goto.c(357): Warning: Goto at line 357 to label lc jumps into a block with initialization of an object that has automatic storage duration.
goto.c(359): Warning: Goto at line 359 to label le jumps into a block with initialization of an object that has automatic storage duration.
goto.c(360): Warning: Goto at line 360 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(361): Warning: Goto at line 361 to label lg jumps into a block with initialization of an object that has automatic storage duration.
goto.c(373): Warning: Goto at line 373 to label l8 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(374): Warning: Goto at line 374 to label l9 jumps into a block with initialization of an object that has automatic storage duration.
goto.c(375): Warning: Goto at line 375 to label la jumps into a block with initialization of an object that has automatic storage duration.
goto.c(376): Warning: Goto at line 376 to label lb jumps into a block with initialization of an object that has automatic storage duration.
goto.c(377): Warning: Goto at line 377 to label lc jumps into a block with initialization of an object that has automatic storage duration.
goto.c(378): Warning: Goto at line 378 to label ld jumps into a block with initialization of an object that has automatic storage duration.
goto.c(379): Warning: Goto at line 379 to label le jumps into a block with initialization of an object that has automatic storage duration.
goto.c(380): Warning: Goto at line 380 to label lf jumps into a block with initialization of an object that has automatic storage duration.
goto.c(381): Warning: Goto at line 381 to label lg jumps into a block with initialization of an object that has automatic storage duration.
goto.c(382): Warning: Goto at line 382 to label lh jumps into a block with initialization of an object that has automatic storage duration.