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fix some oss-fuzz (#1184)

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* fix oss-fuzz 10419.

* fix oss-fuzz 10427.

* fix oss-fuzz 10421.

* fix oss-fuzz 10422.

* fix oss-fuzz 10425.

* fix oss-fuzz 10426.

* fix oss-fuzz 10426.

* fix oss-fuzz 10422.

* fix oss-fuzz  10426.

* fix oss-fuzz 10456.

* fix oss-fuzz 10428.

* fix oss-fuzz 10429.

* fix oss-fuzz 10431.

* fix oss-fuzz 10435.

* fix oss-fuzz 10430.

* fix oss-fuzz 10436.

* remove unused var.

* fix oss-fuzz 10449.

* fix oss-fuzz 10452.

* fix oss-fuzz 11792.

* fix oss-fuzz 10457.

* fix oss-fuzz 11737.

* fix oss-fuzz 10458.

* fix oss-fuzz 10565.

* fix oss-fuzz 11651.

* fix oss-fuzz 10497.

* fix oss-fuzz 10515.

* fix oss-fuzz 10586.

* fix oss-fuzz 10597.

* fiz oss-fuzz 11721.

* fix oss-fuzz 10718.

* fix oss-fuzz 15610.

* fix oss-fuzz 10512.

* fix oss-fuzz 10545.

* fix oss-fuzz 10598.

* fix oss-fuzz 11112.

* fix oss-fuzz 11589.

* fix oss-fuzz 10674.

* git fix oss-fuzz 19610.

* fix oss-fuzz 19848.

* fix oss-fuzz 19851.

* fix oss-fuzz 19852.

* fix oss-fuzz 10878.

* fix oss-fuzz 11655.

* fix oss-fuzz 19849.

* fix oss-fuzz 11765.

* fix oss-fuzz 10337.

* fix oss-fuzz 10575.

* fix oss-fuzz 19877.

* fix oss-fuzz 19895.

* fix oss-fuzz 19896.

* fix oss-fuzz 19897.

* remove verbose fprintf output.
This commit is contained in:
Chen Huitao
2020-01-10 23:05:44 +08:00
committed by Nguyen Anh Quynh
parent 8621bca537
commit 7e4ac9e86e
12 changed files with 38 additions and 34 deletions
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6
qemu/target-i386/fpu_helper.c
View File

@@ -654,7 +654,9 @@ void helper_fbst_ST0(CPUX86State *env, target_ulong ptr)
mem_end = mem_ref + 9;
if (val < 0) {
cpu_stb_data(env, mem_end, 0x80);
val = -val;
if (val != 0x8000000000000000LL) {
val = -val;
}
} else {
cpu_stb_data(env, mem_end, 0x00);
}
@@ -664,7 +666,7 @@ void helper_fbst_ST0(CPUX86State *env, target_ulong ptr)
}
v = val % 100;
val = val / 100;
v = ((v / 10) << 4) | (v % 10);
v = (int)((unsigned int)(v / 10) << 4) | (v % 10);
cpu_stb_data(env, mem_ref++, v);
}
while (mem_ref < mem_end) {

2
qemu/target-i386/int_helper.c
View File

@@ -352,7 +352,7 @@ static int idiv64(uint64_t *plow, uint64_t *phigh, int64_t b)
neg128(plow, phigh);
}
sb = (b < 0);
if (sb) {
if (sb && (b != 0x8000000000000000LL)) {
b = -b;
}
if (div64(plow, phigh, b) != 0) {

6
qemu/target-i386/ops_sse.h
View File

@@ -852,7 +852,7 @@ static inline uint64_t helper_extrq(uint64_t src, int shift, int len)
if (len == 0) {
mask = ~0LL;
} else {
mask = (1ULL << len) - 1;
mask = (1ULL << (len & 0x3f)) - 1;
}
return (src >> shift) & mask;
}
@@ -1469,8 +1469,8 @@ void glue(helper_phsubw, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
void glue(helper_phsubd, SUFFIX)(CPUX86State *env, Reg *d, Reg *s)
{
d->L(0) = (int32_t)d->L(0) - (int32_t)d->L(1);
XMM_ONLY(d->L(1) = (int32_t)d->L(2) - (int32_t)d->L(3));
d->L(0) = (int32_t)((int64_t)d->L(0) - (int64_t)d->L(1));
XMM_ONLY(d->L(1) = (int32_t)((int64_t)d->L(2) - (int64_t)d->L(3)));
d->L((1 << SHIFT) + 0) = (uint32_t)((int32_t)s->L(0) - (int32_t)s->L(1));
XMM_ONLY(d->L(3) = (int32_t)s->L(2) - (int32_t)s->L(3));
}

2
qemu/target-i386/translate.c
View File

@@ -1014,7 +1014,7 @@ static CCPrepare gen_prepare_eflags_c(DisasContext *s, TCGv reg)
/* (CC_SRC >> (DATA_BITS - 1)) & 1 */
size = s->cc_op - CC_OP_SHLB;
shift = (8 << size) - 1;
return ccprepare_make(TCG_COND_NE, cpu_cc_src, 0, 0, (target_ulong)(1U << shift), false, false);
return ccprepare_make(TCG_COND_NE, cpu_cc_src, 0, 0, (target_ulong)(1ULL << shift), false, false);
case CC_OP_MULB: case CC_OP_MULW: case CC_OP_MULL: case CC_OP_MULQ:
return ccprepare_make(TCG_COND_NE, cpu_cc_src, 0, 0, -1, false, false);