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clean up expression to omf errors.

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This commit is contained in:
Kelvin Sherlock 2017-01-12 21:32:11 -05:00
parent 2ff8267af3
commit 4317d2929b
1 changed files with 14 additions and 13 deletions
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27
link.cpp
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@ -633,9 +633,14 @@ inline bool in_range(int value, int low, int high) {
return value >= low && value <= high;
}
inline void expr_error(bool fatal, const expression &e, const char *msg) {
if (fatal) flags._errors++;
warnx("%s:%04x %s", sections[e.section].name.c_str(), e.offset, msg);
}
void to_omf(const expression &e, omf::segment &seg) {
if (e.stack.empty() || e.size == 0) {
warnx("Expression empty at segment \"%s\" pc %04x", seg.segname.c_str(), e.offset);
expr_error(false, e, "Expression empty");
return;
}
@ -655,9 +660,7 @@ void to_omf(const expression &e, omf::segment &seg) {
if (e.size == 1 && in_range(tmp, -128, 127)) ok = true;
if (!ok) {
warnx("Relative branch out of range (%d) at segment \"%s\" pc %04x",
tmp, seg.segname.c_str(), e.offset);
flags._errors++;
expr_error(true, e, "Relative branch out of range");
return;
}
@ -667,8 +670,7 @@ void to_omf(const expression &e, omf::segment &seg) {
return;
}
warnx("Relative branch error at \"%s\" pc %04x", seg.segname.c_str(), e.offset);
flags._errors++;
expr_error(true, e, "Relative expression too complex");
return;
}
@ -681,9 +683,9 @@ void to_omf(const expression &e, omf::segment &seg) {
if (a.tag == OP_LOC) {
auto &loc = a;
if (loc.section == 0) {
warnx("Invalid segment at \"%s\" pc %04x", seg.segname.c_str(), e.offset);
flags._errors++;
expr_error(true, e, "Invalid segment");
return;
}
@ -731,14 +733,13 @@ void to_omf(const expression &e, omf::segment &seg) {
if (shift.value > 24) {
warnx("Shift %d at \"%s\" pc %04x", shift.value, seg.segname.c_str(), e.offset);
expr_error(false, e, "Shift too large");
// data is already pre-zeroed.
return;
}
if (loc.section == 0) {
warnx("Invalid segment at \"%s\" pc %04x", seg.segname.c_str(), e.offset);
flags._errors++;
expr_error(true, e, "Invalid segment");
return;
}
@ -779,9 +780,9 @@ void to_omf(const expression &e, omf::segment &seg) {
}
}
warnx("Expression too complex at \"%s\" pc %04x", seg.segname.c_str(), e.offset);
expr_error(true, e, "Expression too complex");
// should also pretty-print the expression.
flags._errors++;
return;
}