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[Mach-O] wip

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This commit is contained in:
Rui Ueyama 2021-10-08 20:24:39 +09:00
parent 69ce692671
commit 038f42a579
2 changed files with 27 additions and 27 deletions
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46
macho/dumper.cc
View File

@ -72,23 +72,23 @@ static void read_trie(std::vector<ExportEntry> &vec, u8 *start, i64 offset = 0,
void dump_unwind_info(u8 *buf, MachSection &sec) {
UnwindSectionHeader &hdr = *(UnwindSectionHeader *)(buf + sec.offset);
std::cout << std::hex << "Unwind info:"
<< "\n version: 0x" << hdr.version
<< "\n encoding_offset: 0x" << hdr.encoding_offset
<< "\n encoding_count: 0x" << hdr.encoding_count
<< "\n personalities_offset: 0x" << hdr.personalities_offset
<< "\n personalities_count: 0x" << hdr.personalities_count
<< "\n indices_offset: 0x" << hdr.indices_offset
<< "\n indices_count: 0x" << hdr.indices_count;
std::cout << std::hex << " Unwind info:"
<< "\n version: 0x" << hdr.version
<< "\n encoding_offset: 0x" << hdr.encoding_offset
<< "\n encoding_count: 0x" << hdr.encoding_count
<< "\n personality_offset: 0x" << hdr.personality_offset
<< "\n personality_count: 0x" << hdr.personality_count
<< "\n index_offset: 0x" << hdr.index_offset
<< "\n index_count: 0x" << hdr.index_count;
UnwindIndexEntry *ent =
(UnwindIndexEntry *)(buf + sec.offset + hdr.indices_offset);
(UnwindIndexEntry *)(buf + sec.offset + hdr.index_offset);
for (i64 i = 0; i < hdr.indices_count; i++) {
std::cout << std::hex << "\n function:"
<< "\n func_offset: 0x" << ent[i].func_offset
<< "\n page_offset: 0x" << ent[i].page_offset
<< "\n lsda_offset: 0x" << ent[i].lsda_offset;
for (i64 i = 0; i < hdr.index_count; i++) {
std::cout << std::hex << "\n function:"
<< "\n func_offset: 0x" << ent[i].func_offset
<< "\n page_offset: 0x" << ent[i].page_offset
<< "\n lsda_offset: 0x" << ent[i].lsda_offset;
if (ent[i].page_offset == 0)
break;
@ -97,30 +97,30 @@ void dump_unwind_info(u8 *buf, MachSection &sec) {
switch (u32 kind = *addr; kind) {
case UNWIND_SECOND_LEVEL_REGULAR: {
std::cout << "\n UNWIND_SECOND_LEVEL_REGULAR:";
std::cout << "\n UNWIND_SECOND_LEVEL_REGULAR:" ;
break;
}
case UNWIND_SECOND_LEVEL_COMPRESSED: {
std::cout << "\n UNWIND_SECOND_LEVEL_COMPRESSED";
std::cout << "\n UNWIND_SECOND_LEVEL_COMPRESSED" ;
UnwindPageHeader &hdr2 = *(UnwindPageHeader *)addr;
std::cout << std::hex
<< "\n page_offset: 0x" << hdr2.page_offset
<< "\n page_count: 0x" << hdr2.page_count
<< "\n encoding_offset: 0x" << hdr2.encoding_offset
<< "\n encoding_count: 0x" << hdr2.encoding_count;
<< "\n page_offset: 0x" << hdr2.page_offset
<< "\n page_count: 0x" << hdr2.page_count
<< "\n encoding_offset: 0x" << hdr2.encoding_offset
<< "\n encoding_count: 0x" << hdr2.encoding_count;
UnwindPageEntry *ent2 = (UnwindPageEntry *)(addr + hdr2.page_offset);
for (i64 j = 0; j < hdr2.page_count; j++)
std::cout << std::hex << "\n ent 0x"
std::cout << std::hex << "\n ent 0x"
<< ent2[j].func_offset << " 0x" << ent2[j].encoding;
u32 *enc = (u32 *)(addr + hdr2.encoding_offset);
for (i64 j = 0; j < hdr2.encoding_count; j++)
std::cout << std::hex << "\n 0x" << enc[j];
std::cout << std::hex << "\n 0x" << enc[j];
break;
}
default:
std::cout << "\n bad 2nd-level unwind info header: " << kind;
std::cout << "\n bad 2nd-level unwind info header: " << kind;
}
}

8
macho/macho.h
View File

@ -507,10 +507,10 @@ struct UnwindSectionHeader {
u32 version;
u32 encoding_offset;
u32 encoding_count;
u32 personalities_offset;
u32 personalities_count;
u32 indices_offset;
u32 indices_count;
u32 personality_offset;
u32 personality_count;
u32 index_offset;
u32 index_count;
};
struct UnwindIndexEntry {