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do not funnel non-dwarf sections in dwarf input prep pass

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This commit is contained in:
Ryan Fleury
2025-07-28 16:22:23 -07:00
parent 48f5df2523
commit 122c27eabe
1 changed files with 40 additions and 36 deletions
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src/dwarf/dwarf_elf.c
+40 -36
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@@ -46,60 +46,64 @@ dw_input_from_elf_bin(Arena *arena, String8 data, ELF_Bin *bin)
if(section_kind == DW_Section_Null)
{
section_kind = dw_section_dwo_kind_from_string(section_name);
is_dwo = 1;
is_dwo = (section_kind != DW_Section_Null);
}
//- rjf: decompress section data if needed
String8 section_data__uncompressed = {0};
if(!(shdr->sh_flags & ELF_Shf_Compressed))
if(section_kind != DW_Section_Null)
{
section_data__uncompressed = section_data__maybe_compressed;
}
else
{
// rjf: read compressed-section header
ELF_Chdr64 chdr64 = {0};
U64 chdr_size = 0;
if(ELF_HdrIs64Bit(bin->hdr.e_ident))
if(!(shdr->sh_flags & ELF_Shf_Compressed))
{
chdr_size = str8_deserial_read_struct(section_data__maybe_compressed, 0, &chdr64);
section_data__uncompressed = section_data__maybe_compressed;
}
else if(ELF_HdrIs32Bit(bin->hdr.e_ident))
else
{
ELF_Chdr32 chdr32 = {0};
chdr_size = str8_deserial_read_struct(section_data__maybe_compressed, 0, &chdr32);
if(chdr_size == sizeof(chdr32))
// rjf: read compressed-section header
ELF_Chdr64 chdr64 = {0};
U64 chdr_size = 0;
if(ELF_HdrIs64Bit(bin->hdr.e_ident))
{
chdr64 = elf_chdr64_from_chdr32(chdr32);
chdr_size = str8_deserial_read_struct(section_data__maybe_compressed, 0, &chdr64);
}
}
// rjf: decompress
{
String8 section_data__compressed_contents = str8_skip(section_data__maybe_compressed, chdr_size);
switch(chdr64.ch_type)
else if(ELF_HdrIs32Bit(bin->hdr.e_ident))
{
default:
case ELF_CompressType_None:
ELF_Chdr32 chdr32 = {0};
chdr_size = str8_deserial_read_struct(section_data__maybe_compressed, 0, &chdr32);
if(chdr_size == sizeof(chdr32))
{
section_data__uncompressed = section_data__compressed_contents;
}break;
case ELF_CompressType_ZLib:
chdr64 = elf_chdr64_from_chdr32(chdr32);
}
}
// rjf: decompress
{
String8 section_data__compressed_contents = str8_skip(section_data__maybe_compressed, chdr_size);
switch(chdr64.ch_type)
{
U8 *section_data_uncompressed_buffer = push_array_no_zero_aligned(arena, U8, chdr64.ch_size, chdr64.ch_addr_align);
U64 section_data_uncompressed_size = 0;
section_data_uncompressed_size = zsinflate(section_data_uncompressed_buffer, chdr64.ch_size, section_data__compressed_contents.str, section_data__compressed_contents.size);
section_data__uncompressed = str8(section_data_uncompressed_buffer, section_data_uncompressed_size);
}break;
case ELF_CompressType_ZStd:
{
NotImplemented;
}break;
default:
case ELF_CompressType_None:
{
section_data__uncompressed = section_data__compressed_contents;
}break;
case ELF_CompressType_ZLib:
{
U8 *section_data_uncompressed_buffer = push_array_no_zero_aligned(arena, U8, chdr64.ch_size, chdr64.ch_addr_align);
U64 section_data_uncompressed_size = 0;
section_data_uncompressed_size = zsinflate(section_data_uncompressed_buffer, chdr64.ch_size, section_data__compressed_contents.str, section_data__compressed_contents.size);
section_data__uncompressed = str8(section_data_uncompressed_buffer, section_data_uncompressed_size);
}break;
case ELF_CompressType_ZStd:
{
NotImplemented;
}break;
}
}
}
}
//- rjf: store
if(section_kind != DW_Section_Null)
{
is_section_present[section_kind] = 1;
DW_Section *d = &result.sec[section_kind];