Commit Graph

234 Commits

Author SHA1 Message Date
Eric Christopher 04d4e9312c Move C++ code out of the C headers and into either C++ headers
or the C++ files themselves. This enables people to use
just a C compiler to interoperate with LLVM.

llvm-svn: 180063
2013-04-22 22:47:22 +00:00
Rafael Espindola 3cdeb17ff2 refactor the struct byte swapping to a helper function.
llvm-svn: 179851
2013-04-19 13:45:05 +00:00
Rafael Espindola feef8c2469 Don't read one command past the end.
Thanks to Evgeniy Stepanov for reporting this.

It might be a good idea to add a command iterator abstraction to MachO.h, but
this fixes the bug for now.

llvm-svn: 179848
2013-04-19 11:36:47 +00:00
Rafael Espindola 56f976f6bd At Jim Grosbach's request detemplate Object/MachO.h.
We are still able to handle mixed endian objects by swapping one struct at a
time.

llvm-svn: 179778
2013-04-18 18:08:55 +00:00
Rafael Espindola 41cb64f4fa Make the host endianness check an integer constant expression.
I will remove the isBigEndianHost function once I update clang.

The ifdef logic is designed to
* not use configure/cmake to avoid breaking -arch i686 -arch ppc.
* default to little endian
* be as small as possible

It looks like sys/endian.h is the preferred header on most modern BSD systems,
but it is better to change this in a followup patch as machine/endian.h is
available on FreeBSD, OpenBSD, NetBSD and OS X.

llvm-svn: 179527
2013-04-15 14:44:24 +00:00
Rafael Espindola 9b709259e1 Finish templating MachObjectFile over endianness.
We are now able to handle big endian macho files in llvm-readobject. Thanks to
David Fang for providing the object files.

llvm-svn: 179440
2013-04-13 01:45:40 +00:00
Rafael Espindola ecf1320579 Add 179294 back, but don't use bit fields so that it works on big endian hosts.
Original message:

Print more information about relocations.

With this patch llvm-readobj now prints if a relocation is pcrel, its length,
if it is extern and if it is scattered.

It also refactors the code a bit to use bit fields instead of shifts and
masks all over the place.

llvm-svn: 179345
2013-04-12 00:17:33 +00:00
Rafael Espindola e2742a038c Revert my last two commits while I debug what is wrong in a big endian host.
llvm-svn: 179303
2013-04-11 17:46:10 +00:00
Rafael Espindola 708a44d464 Print more information about relocations.
With this patch llvm-readobj now prints if a relocation is pcrel, its length,
if it is extern and if it is scattered.

It also refactors the code a bit to use bit fields instead of shifts and
masks all over the place.

llvm-svn: 179294
2013-04-11 16:31:37 +00:00
Rafael Espindola e410099a02 Fix MachO's getRelocationAdditionalInfo.
It was returning the loaded address of the section containing the relocation,
which really doesn't seem to be the intent of this function.

llvm-svn: 179255
2013-04-11 02:21:31 +00:00
Rafael Espindola 641c9bcfd5 Template MachOObjectFile over endianness too.
llvm-svn: 179179
2013-04-10 15:33:44 +00:00
Rafael Espindola eaae687d3e Template the MachO types over endianness.
For now they are still only used as little endian.

llvm-svn: 179147
2013-04-10 03:48:25 +00:00
Rafael Espindola c2413f59e4 Convert MachOObjectFile to a template.
For now it is templated only on being 64 or 32 bits. I will add little/big
endian next.

llvm-svn: 179097
2013-04-09 14:49:08 +00:00
Rafael Espindola eb8b211e61 More uses for SymbolTableEntryBase.
llvm-svn: 179076
2013-04-09 01:04:06 +00:00
Rafael Espindola 5d6cec9bff Add a SymbolTableEntryBase.
Use it when we don't need to know if we have a 32 or 64 bit SymbolTableEntry.

llvm-svn: 179074
2013-04-09 00:22:58 +00:00
Rafael Espindola 65d601f96c Add a SectionBase struct.
Use it to share code and when we don't need to know if we have a 32 or 64
bit Section.

llvm-svn: 179072
2013-04-08 23:57:13 +00:00
Rafael Espindola c0406e162c Template the MachO types over the word size.
llvm-svn: 179051
2013-04-08 20:45:01 +00:00
Rafael Espindola 29d4501774 Remove is64BitLoadCommand.
llvm-svn: 179048
2013-04-08 20:18:53 +00:00
Rafael Espindola d66c414619 Add all 4 MachO object types. Use the stored type to implement is64Bits().
llvm-svn: 179021
2013-04-08 13:25:33 +00:00
Rafael Espindola 421305aff8 Make MachOObjectFile independent from MachOObject.
llvm-svn: 178998
2013-04-07 20:01:29 +00:00
Rafael Espindola c1f28b6a8e Implement MachOObjectFile::getData directly.
llvm-svn: 178997
2013-04-07 19:42:15 +00:00
Rafael Espindola 28814d7911 Implement MachOObjectFile::is64Bit directly.
llvm-svn: 178996
2013-04-07 19:38:15 +00:00
Rafael Espindola 774a8cec37 Implement MachOObjectFile::getHeaderSize directly.
llvm-svn: 178995
2013-04-07 19:31:49 +00:00
Rafael Espindola d665259104 Implement MachOObjectFile::getHeader directly.
llvm-svn: 178994
2013-04-07 19:26:57 +00:00
Rafael Espindola 60689987ef Implement MachOObjectFile::getHeaderSize and MachOObjectFile::getData.
These were the last missing forwarding functions. Also consistently use
the forwarding functions instead of using MachOObj directly.

llvm-svn: 178992
2013-04-07 19:05:30 +00:00
Rafael Espindola 3c50f06202 Remove LoadCommandInfo now that we always have a pointer to the command.
LoadCommandInfo was needed to keep a command and its offset in the file. Now
that we always have a pointer to the command, we don't need the offset.

llvm-svn: 178991
2013-04-07 18:42:06 +00:00
Rafael Espindola 224208b868 Add MachOObjectFile::LoadCommandInfo.
This avoids using MachOObject::getLoadCommandInfo.

llvm-svn: 178990
2013-04-07 18:08:12 +00:00
Rafael Espindola 1309a448ff Use getLoadCommandInfo instead of MachOObj->getLoadCommandInfo.
llvm-svn: 178989
2013-04-07 17:41:59 +00:00
Rafael Espindola 17bece31af Construct MachOObject in MachOObjectFile's constructor.
llvm-svn: 178988
2013-04-07 16:58:48 +00:00
Rafael Espindola 717c4d44c4 Remove unused argument.
llvm-svn: 178987
2013-04-07 16:40:00 +00:00
Rafael Espindola 5ffc079c8a Remove MachOObjectFile::getObject.
llvm-svn: 178986
2013-04-07 16:07:35 +00:00
Rafael Espindola 31fce89645 Remove two uses of getObject.
llvm-svn: 178985
2013-04-07 15:46:05 +00:00
Rafael Espindola b7b11f7bac Remove last use of InMemoryStruct in llvm-objdump.
llvm-svn: 178979
2013-04-07 14:40:18 +00:00
Rafael Espindola 91af8e84b9 Remove last use of InMemoryStruct from MachOObjectFile.cpp.
llvm-svn: 178948
2013-04-06 03:50:05 +00:00
Rafael Espindola 15e2a9cd57 Don't use InMemoryStruct<macho::SymtabLoadCommand>.
This also required not using the RegisterStringTable API, which is also a
good thing.

llvm-svn: 178947
2013-04-06 03:31:08 +00:00
Rafael Espindola a65f5de499 Don't use InMemoryStruct in getSymbol64TableEntry.
llvm-svn: 178946
2013-04-06 02:15:44 +00:00
Rafael Espindola 2a34c2d8dd Don't use InMemoryStruct in getSymbolTableEntry.
llvm-svn: 178945
2013-04-06 01:59:05 +00:00
Rafael Espindola 7caf2fbdc3 Don't use InMemoryStruct in getRelocation.
llvm-svn: 178943
2013-04-06 01:24:11 +00:00
Rafael Espindola 4386fa9948 Define versions of Section that are explicitly marked as little endian.
These should really be templated like ELF, but this is a start.

llvm-svn: 178896
2013-04-05 18:45:28 +00:00
Rafael Espindola 8622f2c14e Don't use InMemoryStruct in getSection and getSection64.
llvm-svn: 178894
2013-04-05 18:18:19 +00:00
Rafael Espindola b0f76a4b75 Don't fetch pointers from a InMemoryStruct.
InMemoryStruct is extremely dangerous as it returns data from an internal
buffer when the endiannes doesn't match. This should fix the tests on big
endian hosts.

llvm-svn: 178875
2013-04-05 15:15:22 +00:00
Eric Christopher 0ac16d539c Move an assert earlier in a file and check that the result of
our bitwise compare is equal to the field we're looking for.

Noticed on inspection.

llvm-svn: 176296
2013-02-28 20:26:17 +00:00
Guy Benyei 83c74e9fad Add static cast to unsigned char whenever a character classification function is called with a signed char argument, in order to avoid assertions in Windows Debug configuration.
llvm-svn: 175006
2013-02-12 21:21:59 +00:00
Michael J. Spencer 9718f45d39 [Object][Archive] Improve performance.
Improve performance of iterating over children and accessing the member file
buffer by caching the file size and moving code out to the header.

This also makes getBuffer return a StringRef instead of a MemoryBuffer. Both
fixing a memory leak and removing a malloc.

This takes getBuffer from ~10% of the time in lld to unmeasurable.

llvm-svn: 174272
2013-02-03 10:48:50 +00:00
Michael J. Spencer 39678d836c [Support] Add LLVM_IS_UNALIGNED_ACCESS_FAST.
llvm-svn: 174271
2013-02-03 10:48:31 +00:00
Jim Grosbach 048d2f9684 Object: Fix errant fallthrough.
llvm-svn: 174079
2013-01-31 19:46:57 +00:00
Eli Bendersky a5a4ff5a58 When encountering an unknown file format, ObjectFile::createObjectFile should
politely report it instead of running into llvm_unreachable.

Also patch llvm-dwarfdump to actually check whether the file it's attempting to
dump is a valid object file.

llvm-svn: 173489
2013-01-25 20:53:41 +00:00
Daniel Dunbar eec0f32eea [MC/Mach-O] Add support for linker options in Mach-O files.
llvm-svn: 172779
2013-01-18 01:26:07 +00:00
Michael J. Spencer 1a79161fe3 [Object][ELF] Simplify ELFObjectFile by using ELFType.
This simplifies the usage and implementation of ELFObjectFile by using ELFType
to replace:

<endianness target_endianness, std::size_t max_alignment, bool is64Bits>

This does complicate the base ELF types as they must now use template template
parameters to partially specialize for the 32 and 64bit cases. However these
are only defined once.

llvm-svn: 172515
2013-01-15 07:44:25 +00:00
David Greene fcdab1d995 Fix More Casts
Fix another cast-away-const cast.

llvm-svn: 172466
2013-01-14 21:04:38 +00:00