This re-applies r271611, and hopefully the bots won't break this time.
Although ld64 always outputs linkedit data in the same order, it isn't actually required to. This change makes yaml2obj resilient if the offsets are in arbitrary order.
llvm-svn: 271687
Although ld64 always outputs linkedit data in the same order, it isn't actually required to. This change makes yaml2obj resilient if the offsets are in arbitrary order.
llvm-svn: 271611
This commit adds round tripping for MachO symbol data. Symbols are entries in the name list, that contain offsets into the string table which is at the end of the __LINKEDIT segment.
llvm-svn: 271604
The MachO export trie is a serially encoded trie keyed by symbol name. This code parses the trie and preserves the structure so that it can be dumped again.
llvm-svn: 271300
This adds support for YAML round tripping dyld info lazy bindings. The storage and format of these is the same as regular bind opcodes, they are just interpreted differently by dyld, and can have DONE opcodes in the middle of the opcode lists.
llvm-svn: 270920
This adds support for YAML round tripping dyld info weak bindings. The storage and format of these is the same as regular bind opcodes, they are just interpreted differently by dyld.
llvm-svn: 270911
This adds support for YAML round tripping dyld info bind opcodes. Bind opcodes can have signed or unsigned LEB128 data, and they can have symbols associated with them.
llvm-svn: 270901
The uuid_command was duplicating the load_command.cmdsize field. This removes the duplicate from the YAML mapping and from the test cases.
llvm-svn: 270248
This adds support for handling unknown load commands, and a bogus_load_command tests.
Unknown or unsupported load commands can be specified in YAML by their hex value.
llvm-svn: 270239
Now that MachO load command fields are fully covered we can fill unaccounted for bytes with 0. That allows us to sparsely specify YAML to simplify tests.
Simplifying load_commands test accordingly.
llvm-svn: 270158
This adds support for all the MachO *_command structures. The load_command payloads still are not represented, but that will come next.
llvm-svn: 269808
This adds support for all the MachO *_command structures. The load_command payloads still are not represented, but that will come next.
llvm-svn: 269782
This patch adds basic support for MachO::load_command. Load command types and sizes are encoded in the YAML and expanded back into MachO.
The YAML doesn't yet support load command structs, that is coming next. In the meantime as a temporary measure when writing MachO files the load commands are padded with zeros so that the generated binary is valid.
llvm-svn: 269442
I've added the reserved field as an "optional" in YAML, but I've added asserts in the yaml2macho code to enforce that the field is present in mach_header_64, but not in mach_header.
llvm-svn: 269320
Chris Bieneman