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Commit Graph

169 Commits

Author SHA1 Message Date
Saleem Abdulrasool
2a65dd3101 ARM: consolidate MachO checks for ARM asm parser
This consolidates the duplicated MachO checks in the directive parsing for
various directives that are unsupported for Mach-O.  The error message change is
unimportant as this restores the behaviour to that prior to the addition of the
new directive handling.  Furthermore, use a more direct check for MachO
targeting rather than an indirect feature check of the assembler.

Also simplify the test execution command to avoid temporary files.  Further more,
perform the check in both object and assembly emission.

Whether all non-applicable directives are handled is another question.  .fnstart
is marked as being unsupported, however, the complementary .fnend is not.  The
additional unwinding directives are also still honoured.  This change does not
change that, though, it would be good to validate and mark them as being
unsupported if they are unsupported for the MachO emission.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205678 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-05 22:09:51 +00:00
Tim Northover
7b837d8c75 ARM64: initial backend import
This adds a second implementation of the AArch64 architecture to LLVM,
accessible in parallel via the "arm64" triple. The plan over the
coming weeks & months is to merge the two into a single backend,
during which time thorough code review should naturally occur.

Everything will be easier with the target in-tree though, hence this
commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205090 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-29 10:18:08 +00:00
Kevin Enderby
4a88cd08da Fix crashes when assembler directives are used that are not
for Mach-O object files by generating an error instead.

rdar://16335232


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204687 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-25 00:05:50 +00:00
Rafael Espindola
3f687d350c Move codegen test over to MC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204490 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-21 17:55:34 +00:00
Rafael Espindola
6c22b041da Split out the MC part of this test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204481 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-21 17:16:11 +00:00
Rafael Espindola
aeb12e91d1 Convert another CodeGen test into a MC test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204412 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-20 23:35:00 +00:00
Rafael Espindola
f59d05cf35 Convert CodeGen test into a more specific MC test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204406 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-20 22:05:59 +00:00
NAKAMURA Takumi
2c4507e850 Move yet another test that requires ARM to an ARM test directory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204198 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-18 23:12:09 +00:00
Jim Grosbach
ec8a8564f8 Move tests that require ARM to an ARM test directory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204197 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-18 22:43:59 +00:00
Jim Grosbach
d55fc3f151 Darwin: Add assembler directives to create version-min load commands.
Allow object files to be tagged with a version-min load command for iOS
or MacOSX.

Teach macho-dump to understand the version-min load commands for
testcases.

rdar://11337778

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204190 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-18 22:09:05 +00:00
NAKAMURA Takumi
6e3aceffd3 llvm/test/MC/MachO/gen-dwarf-cpp.s: Relax an expression to match DOS pat.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204030 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-17 05:31:54 +00:00
David Blaikie
fd69cf9ba4 DebugInfo: Improve reuse of file table entries in asm debug info
The previous deduping strategy was woefully inadequate - it only
considered the most recent file used and avoided emitting a duplicate in
that case - never considering the a/b/a scenario.

It was also lacking when it came to directory paths as the previous
filename would never match the current if the filename had been split
into file and directory components.

This change builds caching functionality into the line table at the
lowest level in an optional form (a file number of 0 indicates that one
should be chosen and returned) and will eventually be reused by the
normal source level debugging DWARF emission.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204027 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-17 01:52:11 +00:00
David Blaikie
6a6b6f50af Test case
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204026 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-17 01:52:04 +00:00
Diego Novillo
837c54fa7b Support DWARF discriminators in object streamer.
Summary:
This adds support for emitting DWARF path discriminator values in
the object streamer. It also changes the DWARF dumper to show
discriminator values in the line table output.

Reviewers: echristo

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2794

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201427 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-14 19:27:53 +00:00
Alp Toker
ae43cab6ba Fix known typos
Sweep the codebase for common typos. Includes some changes to visible function
names that were misspelt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200018 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-24 17:20:08 +00:00
Kevin Enderby
303a00ec48 Fixed a bug in getARMFixupKindMachOInfo() where three ARM fixup kinds
were falling into the cases for 24-bit branch kinds which are not 24-bit
branches.  The routine is to return false for fixups are expected to always
be resolvable at assembly time. Which these three fixups are as they have
limited displacement and are for local references within a function.

rdar://15586725


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197282 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-13 22:46:54 +00:00
Kevin Enderby
f50f3a3bb9 Fix a bug in darwin's 32-bit X86 handling of evaluating fixups.
Where it would use a scattered relocation entry but falls back to a
normal relocation entry because the FixupOffset is more than 24-bits.

The bug is in the X86MachObjectWriter::RecordScatteredRelocation() where
it changes reference parameter FixedValue but then returns false to indicate
it did not create a scattered relocation entry.  The fix is simply to save the
original value of the parameter FixedValue at the start of the method and
restore it if we are returning false in that case.

rdar://15526046


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196432 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-04 23:36:24 +00:00
Rafael Espindola
cf0bb134a0 Add test I forgot to git add in r191824.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191831 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-02 14:49:41 +00:00
Kevin Enderby
d8e2f1757d Fixed a crash in the integrated assembler for Mach-O when a symbol difference
expression uses an assembler temporary symbol from an assignment.  In this case
the symbol does not have a fragment so the use of getFragment() would be NULL
and caused a crash. In the case of an assembler temporary symbol we want to use
the AliasedSymbol (if any) which will create a local relocation entry, but if
it is not an assembler temporary symbol then let it use that symbol with an
external relocation entry.

rdar://9356266


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190096 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-05 20:25:06 +00:00
Kevin Enderby
e54726a87a The darwin integrated assembler for X86 in 64-bit mode is not rejecting
32-bit absolute addressing in instructions likei this:

	mov $_f, %rsi

which is not supported in 64-bit mode.

rdar://8827134


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189543 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-29 00:19:03 +00:00
Kevin Enderby
4f066b6db8 The integrated darwin assembler can hang in an infinite loop (or get an assert
with a debug build) with this buggy .indirect_symbol directive usage:

% cat test.s
x: .indirect_symbol _y

The assertion is because it is trying to get the symbol index for the
symbol _y when it is writing out the indirect symbol table. This line of
code in MachObjectWriter::WriteObject() :

        Write32(Asm.getSymbolData(*it->Symbol).getIndex());

And while there is a symbol _y it does not have any getSymbolData set which
is only done in MachObjectWriter::BindIndirectSymbols() for pointer sections
or stub sections.  I added a check and an error in there to catch this in case
something slips through.

But to get a better error the parser should detect when a .indirect_symbol
directive is used and it is not in a pointer section or stub section.  To make
that work I moved the handling of the indirect symbol out of the target
independent AsmParser code into the DarwinAsmParser code that can check
for the proper Mach-O section types.

rdar://14825505


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189497 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-28 17:50:59 +00:00
Daniel Dunbar
24ec2e5a72 [tests] Cleanup initialization of test suffixes.
- Instead of setting the suffixes in a bunch of places, just set one master
   list in the top-level config. We now only modify the suffix list in a few
   suites that have one particular unique suffix (.ml, .mc, .yaml, .td, .py).

 - Aside from removing the need for a bunch of lit.local.cfg files, this enables
   4 tests that were inadvertently being skipped (one in
   Transforms/BranchFolding, a .s file each in DebugInfo/AArch64 and
   CodeGen/PowerPC, and one in CodeGen/SI which is now failing and has been
   XFAILED).

 - This commit also fixes a bunch of config files to use config.root instead of
   older copy-pasted code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188513 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-16 00:37:11 +00:00
Kevin Enderby
ebc573ed5b Fix a crash with X86 Mach-O and a subtraction expression where both symbols are
undefined and produce an error message instead as this is a non-relocatable
expression with X86 Mach-O.

rdar://8920876


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188218 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-12 22:45:44 +00:00
Eric Christopher
10251753b6 Using the integrated assembler we'd fail to change section to the
.tbss section for zerofill thread locals. Make sure we do this
before emitting the zerofills.

Fixes PR15972.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187913 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-07 21:13:06 +00:00
Rafael Espindola
e186d7191c Revert r15266. This fixes llvm.org/pr15266.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175173 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14 16:23:08 +00:00
Chad Rosier
8915e27704 [ms-inline asm] Add support for lexing binary integers with a [bB] suffix.
This is complicated by backward labels (e.g., 0b can be both a backward label
and a binary zero).  The current implementation assumes [0-9]b is always a
label and thus it's possible for 0b and 1b to not be interpreted correctly for
ms-style inline assembly.  However, this is relatively simple to fix in the
inline assembly (i.e., drop the [bB]).

This patch also limits backward labels to [0-9]b, so that only 0b and 1b are
ambiguous.
Part of rdar://12470373


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174983 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12 18:29:02 +00:00
Eli Bendersky
767295f114 Now that llvm-dwarfdump supports flags to specify which DWARF section to dump,
use them in tests that run llvm-dwarfdump. This is in order to make tests as
specific as possible.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173498 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25 21:44:53 +00:00
Kevin Enderby
221514efe9 Add a warning when there is a macro defintion that has named parameters but
the body does not use them and it appears the body has positional parameters.

This can cause unexpected results as in the added test case.  As the darwin
version of gas(1) which only supported positional parameters, happened to
ignore the named parameters.  Now that we want to support both styles of
macros we issue a warning in this specific case.

rdar://12861644


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173199 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-22 21:44:53 +00:00
Kevin Enderby
5de048ec30 Have the integrated assembler give an error if $1 is used as an identifier in
an expression.  Currently this bug causes the line to be ignored in a
release build and an assert in a debug build.

rdar://13062484


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173195 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-22 21:09:20 +00:00
Daniel Dunbar
849209686f [MC/Mach-O] Load commands are supposed to 8-byte aligned on 64-bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173120 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-22 03:42:49 +00:00
Daniel Dunbar
6d49b680be [MC/Mach-O] Implement integrated assembler support for linker options.
- Also, fixup syntax errors in LangRef and missing newline in the MCAsmStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172837 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-18 19:37:00 +00:00
Daniel Dunbar
a94c339423 [MC/Mach-O] Add support for linker options in Mach-O files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172779 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-18 01:26:07 +00:00
Daniel Dunbar
cddd236e8a [MC/Mach-O] Add AsmParser support for .linker_option directive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172778 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-18 01:25:48 +00:00
Kevin Enderby
75c9b9384f We want the dwarf AT_producer for assembly source files to match clang's
AT_producer.  Which includes clang's version information so we can tell
which version of the compiler was used.

This is the first of two steps to allow us to do that.  This is the llvm-mc
change to provide a method to set the AT_producer string.  The second step,
coming soon to a clang near you, will have the clang driver pass the value
of getClangFullVersion() via an flag when invoking the integrated assembler
on assembly source files.

rdar://12955296


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172630 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16 17:46:23 +00:00
David Sehr
f2a1c83c86 Correct ARM NOP encoding
The encoding of NOP in ARMAsmBackend.cpp is missing a trailing zero, which
causes the emission of a coprocessor instruction rather than "mov r0, r0"
as indicated in the comment.  The test also checks for the wrong encoding.

http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20121203/157919.html



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169420 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 21:01:27 +00:00
David Sehr
d224f28437 Test commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169410 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 19:47:56 +00:00
Eli Bendersky
a790bc12c1 A test in thid directory was not being run because lit.local.cfg didn't
include .ll files. Fix that.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169283 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04 17:00:11 +00:00
Eric Christopher
eb6363adf0 The section is .debug_line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168666 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27 01:40:36 +00:00
Kevin Enderby
32c1a82a6b Fix for PR14264 cause by commit r167237 which did not take into account a
possible buffer change with a .macro directive.

rdar://12637628


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167408 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-05 21:55:41 +00:00
Kevin Enderby
938482f522 Add support for generating dwarf debugging info with assembly files
run through the 'C' preprocessor.  That is pick up the file name
and line numbers from the cpp hash file line comments for the
dwarf file and line numbers tables.

rdar://9275556



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167237 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-01 17:31:35 +00:00
Jim Grosbach
b4316028b3 MachO: direct-to-object attribute for data-in-code markers.
The target backend can support data-in-code load commands even when
the assembler doesn't, or vice-versa. Allow targets to opt-in for
direct-to-object.

PR13973.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164974 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-01 22:20:54 +00:00
Jim Grosbach
b7abea0840 X86_32: Large Symbol+Offset relocations.
If the offset is more than 24-bits, it won't fit in a scattered
relocation offset field, so we fall back to using a non-scattered
relocation.

rdar://12358909

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164724 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-26 21:27:45 +00:00
Jim Grosbach
fe2d5f8487 ARM: Darwin BL/BLX relocations to out-of-range symbols.
When a BL/BLX references a symbol in the same translation unit that is
out of range, use an external relocation. The linker will use this to
generate a branch island rather than a direct reference, allowing the
relocation to resolve correctly.

rdar://12359919

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164615 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25 18:07:17 +00:00
Jim Grosbach
3f90a4c42d Assembler: Darwin variables defined via .set are no-dead-strip.
For gas compatibility.

rdar://12219394

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163854 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13 23:11:31 +00:00
Bill Wendling
ef920552d4 Add .pushsection', .popsection', and `.previous' directives to Darwin ASM.
There are situations where inline ASM may want to change the section -- for
instance, to create a variable in the .data section. However, it cannot do this
without (potentially) restoring to the wrong section. E.g.:

  asm volatile (".section __DATA, __data\n\t"
                ".globl _fnord\n\t"
                "_fnord: .quad 1f\n\t"
                ".text\n\t"
                "1:" :::);

This may be wrong if this is inlined into a function that has a "section"
attribute. The user should use `.pushsection' and `.popsection' here instead.

The addition of `.previous' is added for completeness.
<rdar://problem/12048387>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161477 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-08 06:30:30 +00:00
Kevin Enderby
5af4de18ef Fix a bug in ARMMachObjectWriter::RecordRelocation() in ARMMachObjectWriter.cpp
where the other_half of the movt and movw relocation entries needs to get set
and only with the 16 bits of the other half.

rdar://10038370


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160978 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-30 18:46:15 +00:00
Jim Grosbach
3e96531186 Refactor data-in-code annotations.
Use a dedicated MachO load command to annotate data-in-code regions.
This is the same format the linker produces for final executable images,
allowing consistency of representation and use of introspection tools
for both object and executable files.

Data-in-code regions are annotated via ".data_region"/".end_data_region"
directive pairs, with an optional region type.

data_region_directive := ".data_region" { region_type }
region_type := "jt8" | "jt16" | "jt32" | "jta32"
end_data_region_directive := ".end_data_region"

The previous handling of ARM-style "$d.*" labels was broken and has
been removed. Specifically, it didn't handle ARM vs. Thumb mode when
marking the end of the section.

rdar://11459456

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157062 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-18 19:12:01 +00:00
Kevin Enderby
59c15e920c Fixed a bug in llvm-objdump when disassembling using -macho option for a binary
containing no symbols.  Fixed the crash and fixed it not disassembling anything.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157031 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-18 00:13:56 +00:00
Kevin Enderby
e545c4e45d Add a test case for r156840, a fix to llvm-objdump when disassembling using
-macho to disassemble the last symbol to the end of the section.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156850 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-15 20:20:50 +00:00
Kevin Enderby
2d524b0765 Fix issues with the ARM bl and blx thumb instructions and the J1 and J2 bits
for the assembler and disassembler.  Which were not being set/read correctly
for offsets greater than 22 bits in some cases.

Changes to lib/Target/ARM/ARMAsmBackend.cpp from Gideon Myles!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156118 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-03 22:41:56 +00:00