Commit Graph

188 Commits

Author SHA1 Message Date
Frederic Riss 955724e3f5 [dwarfdump] Dump full filenames as DW_AT_(decl|call)_file attribute values
Reviewers: dblaikie samsonov

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5192

llvm-svn: 218246
2014-09-22 12:36:04 +00:00
Frederic Riss 0982e69fb8 [dwarfdump] Dump DW_AT_(decl|call)_line attribute values as decimal values.
llvm-svn: 217232
2014-09-05 07:21:50 +00:00
Frederic Riss 1a3736f4f6 Reapply "[dwarfdump] Add missing DW_LANG_Mips_Assembler case to LanguageString()"
This commit was reverted in r217183, but is OK to go in again now that its dependency is commited (as of r217186).

llvm-svn: 217231
2014-09-05 07:21:40 +00:00
Frederic Riss 28f3d4186d Revert "[dwarfdump] Add missing DW_LANG_Mips_Assembler case to LanguageString()"
This reverts commit 93c7e6161e1adbd2c7ac81fa081823183035cb64.

This commit got approved first, but was dependant on another one going in (The one pretty printing attribute values). I'll reapply when the other one is in.

llvm-svn: 217183
2014-09-04 18:55:46 +00:00
Frederic Riss a3f54f211e [dwarfdump] Add missing DW_LANG_Mips_Assembler case to LanguageString()
Reviewed By: dblaikie

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5193

llvm-svn: 217182
2014-09-04 18:40:23 +00:00
Kevin Enderby 8ae63c127d Adds the next bit of support for llvm-objdump’s -private-headers for executable Mach-O files.
This adds the printing of more load commands, so that the normal load commands
in a typical X86 Mach-O executable can all be printed.

llvm-svn: 217172
2014-09-04 16:54:47 +00:00
Tim Northover 0942e39061 X86: drop relocations on __eh_frame sections globally.
Without this, we produce non-extern relocations when targeting older OS X
versions that ld64 can't cope with in the particular context of __eh_frame
sections (who'd want generic relocation-processing anyway?).

This means that an updated linker (ld64 from Xcode 3.2.6 or later) may be
needed when targeting such platforms with a modern version of LLVM, but this is
probably the case anyway and a reasonable requirement.

PR20212, rdar://problem/17544795

llvm-svn: 213665
2014-07-22 15:47:09 +00:00
Tim Northover 07f99fb769 llvm-readobj: fix MachO relocatoin printing a bit.
There were two issues here:
1. At the very least, scattered relocations cannot use the same code to
   determine the corresponding symbol being referred to. For some reason we
   pretend there is no symbol, even when one actually exists in the symtab, so to
   match this behaviour getRelocationSymbol should simply return symbols_end for
   scattered relocations.
2. Printing "-" when we can't get a symbol (including the scattered case, but
   not exclusively), isn't that helpful. In both cases there *is* interesting
   information in that field, so we should print it. As hex will do.

Small part of rdar://problem/17553104

llvm-svn: 212332
2014-07-04 10:57:56 +00:00
Kevin Enderby 4fc2edb023 Change the default input for llvm-nm to be a.out instead of standard input
to match llvm-size and other UNIX systems for their nm(1).

Tweak test cases that used llvm-nm with standard input to add a "-" to
indicate that and add a test case to check the default of a.out for llvm-nm.

llvm-svn: 211529
2014-06-23 20:27:53 +00:00
Rafael Espindola 440bb21b5a Stop producing func.eh symbols on Darwin.
According Nick Kledzik (http://llvm.org/bugs/show_bug.cgi?id=19430#c2):
"... mach-o no longer needs names in the __eh_frame section (and has not for
years)."

Iain Sandoe confirms it is also unnecessary for their old darwin support.

llvm-svn: 211500
2014-06-23 15:13:23 +00:00
Rafael Espindola b4076b290e Always use a temp symbol for CIE.
Fixes pr19185.

llvm-svn: 211423
2014-06-20 23:54:32 +00:00
Rafael Espindola b4357fc293 Don't produce eh_frame relocations when targeting the IOS simulator.
First step for fixing pr19185.

llvm-svn: 211404
2014-06-20 21:15:27 +00:00
Alp Toker d3d017cf00 Reduce verbiage of lit.local.cfg files
We can just split targets_to_build in one place and make it immutable.

llvm-svn: 210496
2014-06-09 22:42:55 +00:00
Tim Northover 0ae08a849d MachO: move test to ARM directory.
This test specifies an ARM triple, so it needs ARM as a registered
target.

llvm-svn: 209905
2014-05-30 16:01:29 +00:00
Tim Northover eaef074d45 MachO: support N_INDR aliases in assembly files.
This makes LLVM create N_INDR aliases (to be resolved by the linker) when
appropriate.

rdar://problem/15125513

llvm-svn: 209894
2014-05-30 13:22:59 +00:00
Tim Northover 3b0846e8f7 AArch64/ARM64: move ARM64 into AArch64's place
This commit starts with a "git mv ARM64 AArch64" and continues out
from there, renaming the C++ classes, intrinsics, and other
target-local objects for consistency.

"ARM64" test directories are also moved, and tests that began their
life in ARM64 use an arm64 triple, those from AArch64 use an aarch64
triple. Both should be equivalent though.

This finishes the AArch64 merge, and everyone should feel free to
continue committing as normal now.

llvm-svn: 209577
2014-05-24 12:50:23 +00:00
Eric Christopher dc3e9c75fe This command line option is only used in one place. Move it there and
rename it to something more descriptive.

llvm-svn: 209263
2014-05-21 00:20:01 +00:00
Kevin Enderby 96918bc406 Fix the assembler to print a better relocatable expression error
diagnostic that includes location information.

Currently if one has this assembly:

	.quad (0x1234 + (4 * SOME_VALUE))

where SOME_VALUE is undefined ones gets the less than
useful error message with no location information:

% clang -c x.s
clang -cc1as: fatal error: error in backend: expected relocatable expression

With this fix one now gets a more useful error message
with location information:

% clang -c x.s 
x.s:5:8: error: expected relocatable expression
 .quad (0x1234 + (4 * SOME_VALUE))
       ^

To do this I plumbed the SMLoc through the MCObjectStreamer
EmitValue() and EmitValueImpl() interfaces so it could be used
when creating the MCFixup.

rdar://12391022

llvm-svn: 206906
2014-04-22 17:27:29 +00:00
Quentin Colombet 97c05b52b4 [MC] Emit an error if cfi_startproc is used before a symbol is defined.
Currently, we bind those directives with the last symbol, so if none
has been defined, this would lead to a crash of the compiler.

<rdar://problem/15939159>

llvm-svn: 206236
2014-04-15 01:17:45 +00:00
Saleem Abdulrasool dd979e6457 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.

llvm-svn: 205678
2014-04-05 22:09:51 +00:00
Tim Northover 00ed9964c6 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.

llvm-svn: 205090
2014-03-29 10:18:08 +00:00
Kevin Enderby 89299400ac Fix crashes when assembler directives are used that are not
for Mach-O object files by generating an error instead.

rdar://16335232

llvm-svn: 204687
2014-03-25 00:05:50 +00:00
Rafael Espindola 734f105379 Move codegen test over to MC.
llvm-svn: 204490
2014-03-21 17:55:34 +00:00
Rafael Espindola d8eb29ecfd Split out the MC part of this test.
llvm-svn: 204481
2014-03-21 17:16:11 +00:00
Rafael Espindola fc72577d92 Convert another CodeGen test into a MC test.
llvm-svn: 204412
2014-03-20 23:35:00 +00:00
Rafael Espindola df1be1f4c5 Convert CodeGen test into a more specific MC test.
llvm-svn: 204406
2014-03-20 22:05:59 +00:00
NAKAMURA Takumi 2e21f63462 Move yet another test that requires ARM to an ARM test directory.
llvm-svn: 204198
2014-03-18 23:12:09 +00:00
Jim Grosbach e93b257c6a Move tests that require ARM to an ARM test directory.
llvm-svn: 204197
2014-03-18 22:43:59 +00:00
Jim Grosbach 448334a738 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

llvm-svn: 204190
2014-03-18 22:09:05 +00:00
NAKAMURA Takumi 3b3a4d9dac llvm/test/MC/MachO/gen-dwarf-cpp.s: Relax an expression to match DOS pat.
llvm-svn: 204030
2014-03-17 05:31:54 +00:00
David Blaikie c714ef4581 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.

llvm-svn: 204027
2014-03-17 01:52:11 +00:00
David Blaikie 8bef7cd876 Test case
llvm-svn: 204026
2014-03-17 01:52:04 +00:00
Diego Novillo 5b5cf503b5 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

llvm-svn: 201427
2014-02-14 19:27:53 +00:00
Alp Toker cb40291100 Fix known typos
Sweep the codebase for common typos. Includes some changes to visible function
names that were misspelt.

llvm-svn: 200018
2014-01-24 17:20:08 +00:00
Kevin Enderby 651898c19f 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

llvm-svn: 197282
2013-12-13 22:46:54 +00:00
Kevin Enderby 86496a45cb 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

llvm-svn: 196432
2013-12-04 23:36:24 +00:00
Rafael Espindola ae22e3f1ef Add test I forgot to git add in r191824.
llvm-svn: 191831
2013-10-02 14:49:41 +00:00
Kevin Enderby 09cdb4385f 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

llvm-svn: 190096
2013-09-05 20:25:06 +00:00
Kevin Enderby 74946758a0 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

llvm-svn: 189543
2013-08-29 00:19:03 +00:00
Kevin Enderby 3aeada287b 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

llvm-svn: 189497
2013-08-28 17:50:59 +00:00
Daniel Dunbar 9efbedfd35 [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.

llvm-svn: 188513
2013-08-16 00:37:11 +00:00
Kevin Enderby b03f3fe4e8 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

llvm-svn: 188218
2013-08-12 22:45:44 +00:00
Eric Christopher 7af8baf678 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.

llvm-svn: 187913
2013-08-07 21:13:06 +00:00
Rafael Espindola 86d5345988 Revert r15266. This fixes llvm.org/pr15266.
llvm-svn: 175173
2013-02-14 16:23:08 +00:00
Chad Rosier f72d06a919 [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

llvm-svn: 174983
2013-02-12 18:29:02 +00:00
Eli Bendersky e6abe83258 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.

llvm-svn: 173498
2013-01-25 21:44:53 +00:00
Kevin Enderby 81c944cadb 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

llvm-svn: 173199
2013-01-22 21:44:53 +00:00
Kevin Enderby 0017d8a469 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

llvm-svn: 173195
2013-01-22 21:09:20 +00:00
Daniel Dunbar 34ea79f9a3 [MC/Mach-O] Load commands are supposed to 8-byte aligned on 64-bit.
llvm-svn: 173120
2013-01-22 03:42:49 +00:00
Daniel Dunbar 9585612876 [MC/Mach-O] Implement integrated assembler support for linker options.
- Also, fixup syntax errors in LangRef and missing newline in the MCAsmStreamer.

llvm-svn: 172837
2013-01-18 19:37:00 +00:00