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patch export table directory using section contribs

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This commit is contained in:
Nikita Smith
2025-05-20 15:10:10 -07:00
committed by Ryan Fleury
parent 0f9321e92a
commit b1cd2146ac
2 changed files with 9 additions and 5 deletions
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src/linker/lnk.c
+8 -4
View File
@@ -3111,8 +3111,10 @@ lnk_build_win32_image(TP_Arena *arena, TP_Context *tp, LNK_Config *config, LNK_S
LNK_Section *edata_sect = lnk_section_table_search(sectab, str8_lit(".edata"), PE_EDATA_SECTION_FLAGS);
if (edata_sect) {
PE_DataDirectory *export_dir = str8_deserial_get_raw_ptr(image_data, pe.data_dir_range.min + sizeof(PE_DataDirectory)*PE_DataDirectoryIndex_EXPORT, sizeof(PE_DataDirectory));
export_dir->virt_off = edata_sect->voff;
export_dir->virt_size = edata_sect->vsize;
LNK_SectionContrib *edata_first_contrib = lnk_get_first_section_contrib(edata_sect);
LNK_SectionContrib *edata_last_contrib = lnk_get_last_section_contrib(edata_sect);
export_dir->virt_off = image_section_table[edata_first_contrib->u.sect_idx+1]->voff + edata_first_contrib->u.off;
export_dir->virt_size = (edata_last_contrib->u.off + edata_last_contrib->u.size) - edata_first_contrib->u.off;
}
}
@@ -3136,7 +3138,7 @@ lnk_build_win32_image(TP_Arena *arena, TP_Context *tp, LNK_Config *config, LNK_S
LNK_SectionContrib *idata_first_contrib = lnk_get_first_section_contrib(idata_sect);
PE_DataDirectory *import_dir = str8_deserial_get_raw_ptr(image_data, pe.data_dir_range.min + sizeof(PE_DataDirectory)*PE_DataDirectoryIndex_IMPORT, sizeof(PE_DataDirectory));
import_dir->virt_off = image_section_table[idata_first_contrib->u.sect_idx + 1]->voff;
import_dir->virt_off = image_section_table[idata_first_contrib->u.sect_idx + 1]->voff + idata_first_contrib->u.off;
import_dir->virt_size = null_import_desc_parsed.value - idata_first_contrib->u.off;
COFF_ParsedSymbol last_import_desc_parsed = lnk_parsed_symbol_from_coff_symbol_idx(last_import_desc->u.defined.obj, last_import_desc->u.defined.symbol_idx);
@@ -3160,7 +3162,9 @@ lnk_build_win32_image(TP_Arena *arena, TP_Context *tp, LNK_Config *config, LNK_S
COFF_ParsedSymbol null_import_desc_parsed = lnk_parsed_symbol_from_coff_symbol_idx(null_import_desc->u.defined.obj, null_import_desc->u.defined.symbol_idx);
LNK_SectionContrib *didat_first_contrib = lnk_get_first_section_contrib(didat_sect);
PE_DataDirectory *import_dir = str8_deserial_get_raw_ptr(image_data, pe.data_dir_range.min + sizeof(PE_DataDirectory)*PE_DataDirectoryIndex_DELAY_IMPORT, sizeof(PE_DataDirectory));
import_dir->virt_off = image_section_table[didat_first_contrib->u.sect_idx]->voff;
Assert(null_import_desc_parsed.section_number == didat_first_contrib->u.sect_idx+1);
Assert(null_import_desc_parsed.value >= didat_first_contrib->u.off);
import_dir->virt_off = image_section_table[didat_first_contrib->u.sect_idx]->voff + didat_first_contrib->u.off;
import_dir->virt_size = null_import_desc_parsed.value - didat_first_contrib->u.off;
}
}
src/linker/lnk_section_table.c
+1 -1
View File
@@ -95,7 +95,7 @@ lnk_get_last_section_contrib(LNK_Section *sect)
{
if (sect->contribs.chunk_count > 0) {
if (sect->contribs.last->count > 0) {
return sect->contribs.last->v[0];
return sect->contribs.last->v[sect->contribs.last->count-1];
}
}
return 0;