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fix section to segment remap bugs when creating the omf file.

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This commit is contained in:
Kelvin Sherlock 2017-01-16 20:17:58 -05:00
parent eed6958275
commit 7e09ecd5f2
1 changed files with 34 additions and 41 deletions
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75
link.cpp
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@ -931,21 +931,6 @@ void build_omf_segments() {
remap.resize(sections.size());
#if 0
if (!flags._X) {
// create an expressload segments.
// (should verify it's expressable later...)
omf::segment seg;
seg.segnum = omf_segments.size()+ 1;
seg.kind = 0x8001; // dynamic data segment
seg.segname = "~ExpressLoad";
omf_segments.emplace_back(std::move(seg));
}
#endif
// if data + code can fit in one bank, merge them
// otherwise, merge all data sections and 1 omf segment
// per code section.
@ -985,32 +970,34 @@ void build_omf_segments() {
if (total_data_size + sections[SECT_CODE].size > 0xffff) {
omf_segments.emplace_back();
auto &seg = omf_segments.back();
data_segment = seg.segnum = omf_segments.size();
seg.kind = 0x0001; // static data segment.
}
//omf::segment &code_seg = omf_segments[code_segment-1];
omf::segment &data_seg = omf_segments[data_segment-1];
// KDATA, DATA, UDATA, other segment order.
for (auto &s : sections) {
if (s.flags & SEC_REF_ONLY) continue;
if ((s.flags & SEC_DATA) == 0) continue;
remap[s.number] = std::make_pair(data_segment, data_seg.data.size());
append(data_seg.data, s.data);
s.data.clear();
}
// add in UDATA
{
auto &s = sections[SECT_UDATA];
remap[s.number] = std::make_pair(data_segment, data_seg.data.size());
append(data_seg.data, s.size, (uint8_t)0);
omf::segment &data_seg = omf_segments[data_segment-1];
// KDATA, DATA, UDATA, other segment order.
for (auto &s : sections) {
if (s.flags & SEC_REF_ONLY) continue;
if ((s.flags & SEC_DATA) == 0) continue;
remap[s.number] = std::make_pair(data_segment, data_seg.data.size());
append(data_seg.data, s.data);
s.data.clear();
}
// add in UDATA
{
auto &s = sections[SECT_UDATA];
remap[s.number] = std::make_pair(data_segment, data_seg.data.size());
append(data_seg.data, s.size, (uint8_t)0);
}
// data_seg no longer valid since emplace_back() may invalidate.
}
// for all other sections, create a new segment.
@ -1019,16 +1006,17 @@ void build_omf_segments() {
if (s.flags & SEC_DATA) continue;
if (s.number == SECT_CODE) continue;
omf::segment seg;
seg.segnum = omf_segments.size() + 1;
omf_segments.emplace_back();
auto &seg = omf_segments.back();
seg.segnum = omf_segments.size();
seg.kind = 0x0000; // static code.
seg.data = std::move(s.data);
seg.segname = s.name;
s.data.clear();
remap[s.number] = std::make_pair(seg.segnum, 0);
omf_segments.emplace_back(std::move(seg));
}
@ -1042,8 +1030,11 @@ void build_omf_segments() {
// ????
size = (size + 255) & ~255;
omf::segment seg;
seg.segnum = omf_segments.size() + 1;
omf_segments.emplace_back();
auto &seg = omf_segments.back();
seg.segnum = omf_segments.size();
seg.kind = 0x12; // static dp/stack segment.
seg.data.resize(size, 0);
seg.loadname = "~Stack";
@ -1069,7 +1060,9 @@ void build_omf_segments() {
}
}
simplify_expression(e);
to_omf(e, omf_segments[s.number-1]);
unsigned segnum = remap[s.number].first;
to_omf(e, omf_segments.at(segnum-1));
}
}