Mostly this change adds support converting to and from
YAML which will allow us to write more test cases for
the WebAssembly MC and lld ports.
Better support for objdump, readelf, and nm will be in
followup CLs.
I had to update the two wasm test binaries because they
used the old style 'name' section which is no longer
supported.
Differential Revision: https://reviews.llvm.org/D31099
Patch by Sam Clegg
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299101 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Add a new load command LC_BUILD_VERSION. It is a generic version of
LC_*_VERSION_MIN load_command used on Apple platforms. Instead of having
a seperate load command for each platform, LC_BUILD_VERSION is recording
platform info as an enum. It also records SDK version, min_os, and tools
that used to build the binary.
rdar://problem/29781291
Reviewers: enderby
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D29044
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292824 91177308-0d34-0410-b5e6-96231b3b80d8
This patch pulls the yaml2dwarf code out of yaml2obj into a new set of DWARF emitter functions in the DWARFYAML namespace. This will enable the YAML->DWARF code to be used inside DWARF tests by populating the DWARFYAML structs and calling the Emitter functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291828 91177308-0d34-0410-b5e6-96231b3b80d8
One more try... relanding r291541 with a fix to properly gate MaxOpsPerInst on DWARF version.
Description from r291541:
This patch re-lands r291470, which failed on Linux bots. The issue (I believe) was undefined behavior because the size of llvm::dwarf::LineNumberOps was not explcitly specified or consistently respected. The updated patch adds an explcit underlying type to the enum and preserves the size more correctly.
Original description:
This patch adds support for the DWARF debug_lines section. The line table state machine opcodes are preserved, so this can be used to test the state machine evaluation directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291546 91177308-0d34-0410-b5e6-96231b3b80d8
This patch re-lands r291470, which failed on Linux bots. The issue (I believe) was undefined behavior because the size of llvm::dwarf::LineNumberOps was not explcitly specified or consistently respected. The updated patch adds an explcit underlying type to the enum and preserves the size more correctly.
Original description:
This patch adds support for the DWARF debug_lines section. The line table state machine opcodes are preserved, so this can be used to test the state machine evaluation directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291541 91177308-0d34-0410-b5e6-96231b3b80d8
This patch adds support for the DWARF debug_lines section. The line table state machine opcodes are preserved, so this can be used to test the state machine evaluation directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291470 91177308-0d34-0410-b5e6-96231b3b80d8
This patch adds support for YAML<->DWARF for debug_info sections.
This re-lands r290147, reverted in 290148, re-landed in r290204 after fixing the issue that caused bots to fail (thank you UBSan!), and reverted again in r290209 due to failures on big endian systems.
After adding support for preserving endianness, this should be good now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290386 91177308-0d34-0410-b5e6-96231b3b80d8
This patch adds support to the macho<->yaml tools for preserving endianness in MachO structures and DWARF data.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290381 91177308-0d34-0410-b5e6-96231b3b80d8
This patch adds support for YAML<->DWARF for debug_info sections.
This re-lands r290147, after fixing the issue that caused bots to fail (thank you UBSan!).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290204 91177308-0d34-0410-b5e6-96231b3b80d8
This patch adds support for YAML<->DWARF round tripping for pub* section data. The patch supports both GNU and non-GNU style entries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290139 91177308-0d34-0410-b5e6-96231b3b80d8
Since all the DWARF classes are in a DWARFYAML namespace having every class start with DWARF seems like a bit of overkill.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289080 91177308-0d34-0410-b5e6-96231b3b80d8
This abstracts the code for emitting DWARF binary from the DWARFYAML types into reusable interfaces that could be used by ELF and COFF.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288990 91177308-0d34-0410-b5e6-96231b3b80d8
This patch adds the starting support for encoding data from the MachO __DWARF segment. The first section supported is the __debug_str section because it is the simplest.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288774 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Our YAML library's handling of tags isn't perfect, but it is good enough to get rid of the need for the --format argument to yaml2obj. This patch does exactly that.
Instead of requiring --format, it infers the format based on the tags found in the object file. The supported tags are:
!ELF
!COFF
!mach-o
!fat-mach-o
I have a corresponding patch that is quite large that fixes up all the in-tree test cases.
Reviewers: rafael, Bigcheese, compnerd, silvas
Subscribers: compnerd, llvm-commits
Differential Revision: http://reviews.llvm.org/D21711
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273915 91177308-0d34-0410-b5e6-96231b3b80d8
This patch adds round-trip support for MachO Universal binaries to obj2yaml and yaml2obj. Universal binaries have a header and list of architecture structures, followed by a the individual object files at specified offsets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273719 91177308-0d34-0410-b5e6-96231b3b80d8
32-bit Mach headers don't have reserved fields. When generating the
mapping for 32-bit headers leaving off the reserved field will result in
parse errors if the field is present in the yaml.
Added a CHECK-NOT line to ensure that mach_header.yaml isn't adding a
reserved field, and a test to ensure that the parser error gets hit with
32-bit headers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273623 91177308-0d34-0410-b5e6-96231b3b80d8
looking for it along $PATH. This allows installs of LLVM tools outside of
$PATH to find the symbolizer and produce pretty backtraces if they crash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272232 91177308-0d34-0410-b5e6-96231b3b80d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271687 91177308-0d34-0410-b5e6-96231b3b80d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271611 91177308-0d34-0410-b5e6-96231b3b80d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271604 91177308-0d34-0410-b5e6-96231b3b80d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271300 91177308-0d34-0410-b5e6-96231b3b80d8
clang-tidy's performance-unnecessary-copy-initialization with some manual
fixes. No functional changes intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270988 91177308-0d34-0410-b5e6-96231b3b80d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270920 91177308-0d34-0410-b5e6-96231b3b80d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270911 91177308-0d34-0410-b5e6-96231b3b80d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270901 91177308-0d34-0410-b5e6-96231b3b80d8
This fills section data with 0xDEADBEEF and segment data not inside a section with 0xBAADDA7A. This results in yaml2obj generating a matching size object file. Any additional bytes in the file are zero'd.
This is a starting point for populating the remaining segment data, and provides a hex viewable file that you can easily see the missing data in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270286 91177308-0d34-0410-b5e6-96231b3b80d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270158 91177308-0d34-0410-b5e6-96231b3b80d8
This re-applies r270115.
Many of the MachO load commands can have data appended after the command structure. This data is frequently strings, but can actually be anything. This patch adds support for three optional fields on load command yaml descriptions.
The new PayloadString YAML field is populated with the data after load commands known to have strings as extra data.
The new ZeroPadBytes YAML field is a count of zero'd bytes after the end of the load command structure before the next command. This can apply anywhere in the file. MachO2YAML verifies that bytes are zero before populating this field, and YAML2MachO will add zero'd bytes.
The new PayloadBytes YAML field stores all bytes after the end of the load command structure before the next command if they are non-zero. This is a catch all for all unhandled bytes. If MachO2Yaml populates PayloadBytes it will not populate ZeroPadBytes, instead zero'd bytes will be in the PayloadBytes structure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270124 91177308-0d34-0410-b5e6-96231b3b80d8
Many of the MachO load commands can have data appended after the command structure. This data is frequently strings, but can actually be anything. This patch adds support for three optional fields on load command yaml descriptions.
The new PayloadString YAML field is populated with the data after load commands known to have strings as extra data.
The new ZeroPadBytes YAML field is a count of zero'd bytes after the end of the load command structure before the next command. This can apply anywhere in the file. MachO2YAML verifies that bytes are zero before populating this field, and YAML2MachO will add zero'd bytes.
The new PayloadBytes YAML field stores all bytes after the end of the load command structure before the next command if they are non-zero. This is a catch all for all unhandled bytes. If MachO2Yaml populates PayloadBytes it will not populate ZeroPadBytes, instead zero'd bytes will be in the PayloadBytes structure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270115 91177308-0d34-0410-b5e6-96231b3b80d8
structs"
This reverts commits r269845, r269846, and r269850 as they
introduce a crash in obj2yaml when trying to do a roundtrip.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269865 91177308-0d34-0410-b5e6-96231b3b80d8
