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remove dead code, fix expression location adjustment.

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This commit is contained in:
Kelvin Sherlock 2017-01-16 20:55:24 -05:00
parent 7e09ecd5f2
commit 6aa7418561
2 changed files with 5 additions and 51 deletions
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14
link.cpp
View File

@ -830,15 +830,6 @@ void to_omf(const expression &e, omf::segment &seg) {
r.offset = e.offset;
r.value = value;
#if 0
// handle later.
// if generating a super, store inline.
if (!flags._C && r.can_compress()) {
for (int i = 0; i < e.size; ++i, value >>= 8)
seg.data[e.offset + i] = value & 0xff;
}
#endif
seg.relocs.emplace_back(r);
} else {
omf::interseg r;
@ -1050,8 +1041,13 @@ void build_omf_segments() {
// now adjust all the expressions, simplify, and convert to reloc records.
for (auto &s :sections) {
auto &x = remap[s.number];
for (auto &e : s.expressions) {
e.offset += x.second;
for (auto &t : e.stack) {
if (t.tag == OP_LOC) {
const auto &x = remap[t.section];

42
omf.cpp
View File

@ -412,48 +412,6 @@ void save_omf(const std::string &path, std::vector<omf::segment> &segments, bool
uint32_t reloc_size = 0;
reloc_size = add_relocs(data, data_offset, s, compress);
#if 0
// should interseg/reloc records be sorted?
// todo -- compress into super records.
for (const auto &r : s.relocs) {
if (r.can_compress()) {
push(data, (uint8_t)0xf5);
push(data, (uint8_t)r.size);
push(data, (uint8_t)r.shift);
push(data, (uint16_t)r.offset);
push(data, (uint16_t)r.value);
reloc_size += 7;
} else {
push(data, (uint8_t)0xe5);
push(data, (uint8_t)r.size);
push(data, (uint8_t)r.shift);
push(data, (uint32_t)r.offset);
push(data, (uint32_t)r.value);
reloc_size += 11;
}
}
for (const auto &r : s.intersegs) {
if (r.can_compress()) {
push(data, (uint8_t)0xf6);
push(data, (uint8_t)r.size);
push(data, (uint8_t)r.shift);
push(data, (uint16_t)r.offset);
push(data, (uint8_t)r.segment);
push(data, (uint16_t)r.segment_offset);
reloc_size += 8;
} else {
push(data, (uint8_t)0xe3);
push(data, (uint8_t)r.size);
push(data, (uint8_t)r.shift);
push(data, (uint32_t)r.offset);
push(data, (uint16_t)r.file);
push(data, (uint16_t)r.segment);
push(data, (uint32_t)r.segment_offset);
reloc_size += 15;
}
}
#endif
// end-of-record
push(data, (uint8_t)omf::END);