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Warn on out of bounds EA displacements

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This commit is contained in:
Charles Crayne 2007-11-03 22:06:13 -07:00
parent f5c729203d
commit 7e97555f1c
1 changed files with 3 additions and 1 deletions
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4
assemble.c
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@ -152,7 +152,7 @@ static const char *size_name(int size)
static void warn_overflow(int size, int64_t data)
{
if (size < 8) {
int64_t lim = (1 << (size*8))-1;
int64_t lim = (1l << (size*8))-1;
if (data < ~lim || data > lim)
errfunc(ERR_WARNING, "%s data exceeds bounds", size_name(size));
@ -1616,6 +1616,7 @@ static void gencode(int32_t segment, int32_t offset, int bits,
errfunc(ERR_NONFATAL, "invalid effective address");
}
p = bytes;
*p++ = ea_data.modrm;
if (ea_data.sib_present)
@ -1654,6 +1655,7 @@ static void gencode(int32_t segment, int32_t offset, int bits,
case 2:
case 4:
data = ins->oprs[(c >> 3) & 7].offset;
warn_overflow(ea_data.bytes, data);
out(offset, segment, &data,
(ea_data.rip ? OUT_REL4ADR : OUT_ADDRESS)
+ ea_data.bytes,