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DynASM: Fix warnings.

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Reported by Ilija Tovilo.
This commit is contained in:
Mike Pall
2023-06-02 12:54:46 +02:00
parent 2d8300c194
commit 51fb2f2c3a
5 changed files with 26 additions and 56 deletions
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18
dynasm/dasm_x86.h
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@@ -68,7 +68,7 @@ struct dasm_State {
size_t lgsize;
int *pclabels; /* PC label chains/pos ptrs. */
size_t pcsize;
void **globals; /* Array of globals (bias -10). */
void **globals; /* Array of globals. */
dasm_Section *section; /* Pointer to active section. */
size_t codesize; /* Total size of all code sections. */
int maxsection; /* 0 <= sectionidx < maxsection. */
@@ -85,7 +85,6 @@ void dasm_init(Dst_DECL, int maxsection)
{
dasm_State *D;
size_t psz = 0;
int i;
Dst_REF = NULL;
DASM_M_GROW(Dst, struct dasm_State, Dst_REF, psz, DASM_PSZ(maxsection));
D = Dst_REF;
@@ -96,12 +95,7 @@ void dasm_init(Dst_DECL, int maxsection)
D->pcsize = 0;
D->globals = NULL;
D->maxsection = maxsection;
for (i = 0; i < maxsection; i++) {
D->sections[i].buf = NULL; /* Need this for pass3. */
D->sections[i].rbuf = D->sections[i].buf - DASM_SEC2POS(i);
D->sections[i].bsize = 0;
D->sections[i].epos = 0; /* Wrong, but is recalculated after resize. */
}
memset((void *)D->sections, 0, maxsection * sizeof(dasm_Section));
}
/* Free DynASM state. */
@@ -121,7 +115,7 @@ void dasm_free(Dst_DECL)
void dasm_setupglobal(Dst_DECL, void **gl, unsigned int maxgl)
{
dasm_State *D = Dst_REF;
D->globals = gl - 10; /* Negative bias to compensate for locals. */
D->globals = gl;
DASM_M_GROW(Dst, int, D->lglabels, D->lgsize, (10+maxgl)*sizeof(int));
}
@@ -445,7 +439,7 @@ int dasm_encode(Dst_DECL, void *buffer)
break;
}
case DASM_REL_LG: p++; if (n >= 0) goto rel_pc;
b++; n = (int)(ptrdiff_t)D->globals[-n];
b++; n = (int)(ptrdiff_t)D->globals[-n-10];
/* fallthrough */
case DASM_REL_A: rel_a:
n -= (unsigned int)(ptrdiff_t)(cp+4); goto wd; /* !x64 */
@@ -459,7 +453,7 @@ int dasm_encode(Dst_DECL, void *buffer)
}
case DASM_IMM_LG:
p++;
if (n < 0) { dasma((ptrdiff_t)D->globals[-n]); break; }
if (n < 0) { dasma((ptrdiff_t)D->globals[-n-10]); break; }
/* fallthrough */
case DASM_IMM_PC: {
int *pb = DASM_POS2PTR(D, n);
@@ -469,7 +463,7 @@ int dasm_encode(Dst_DECL, void *buffer)
case DASM_LABEL_LG: {
int idx = *p++;
if (idx >= 10)
D->globals[idx] = (void *)(base + (*p == DASM_SETLABEL ? *b : n));
D->globals[idx-10] = (void *)(base + (*p == DASM_SETLABEL ? *b : n));
break;
}
case DASM_LABEL_PC: case DASM_SETLABEL: break;