exception table than DataRel.

llvm-svn: 89279

Place the EH table in the __TEXT section on MachO. It saves space.

llvm-svn: 89270

llvm-svn: 86367

llvm-svn: 86251

U    lib/CodeGen/AsmPrinter/DwarfException.cpp
U    lib/CodeGen/AsmPrinter/DwarfException.h

--- Reverse-merging r82274 into '.':
U    lib/Target/TargetLoweringObjectFile.cpp
G    lib/CodeGen/AsmPrinter/DwarfException.cpp

These revisions were breaking everything.

llvm-svn: 82396

llvm-svn: 82356

internal, they shouldn't use the indirect pointer stuff. In the case of
throw_rethrow_test, it was marked as 'internal' and calculated its own offset to
its contents.

llvm-svn: 82354

llvm-svn: 82336

into the __DATA section. At launch time, dyld has to update most of the section
to fix up the type info pointers. It's better to place it into the __TEXT
section and use pc-rel indirect pointer encodings. Similar to the personality
routine.

llvm-svn: 82274

currently unused.

llvm-svn: 82157

Eliminate the PersonalityPrefix/Suffix & NeedsIndirectEncoding
fields from MAI: they aren't part of the asm syntax, they are
related to the structure of the object file.

To replace their functionality, add a new 
TLOF::getSymbolForDwarfGlobalReference method which asks targets
to decide how to reference a global from EH in a pc-relative way.

The default implementation just returns the symbol.  The default
darwin implementation references the symbol through an indirect
$non_lazy_ptr stub.  The bizarro x86-64 darwin specialization
handles the weird "foo@GOTPCREL+4" hack.

DwarfException.cpp now uses this to emit the reference to the
symbol in the right way, and this also eliminates another 
horrible hack from DwarfException.cpp:

-    if (strcmp(MAI->getPersonalitySuffix(), "+4@GOTPCREL"))
-      O << "-" << MAI->getPCSymbol();

llvm-svn: 81991

llvm-svn: 81322

llvm-svn: 81321

llvm-svn: 80176

llvm-svn: 79346

Patch by Dmitry Gorbachev!

llvm-svn: 79334

Clear the uniquing table when initializing TLOF to avoid a crash when the TLOF is reinitialized with a different MCContext.

llvm-svn: 79253

if not supported by the ELF subtarget.

llvm-svn: 79249

is why they are datarel).  This should fix PR4724, and is fallout
from r78890.

llvm-svn: 79111

them to null out the default section pointers.

llvm-svn: 79078

accidentally match unrelated things.

llvm-svn: 78966

must be emitted for PowerPC-Linux '.bss' section

llvm-svn: 78958

syntactically as a string, very similiar to what Chris did with MachO.
The parsing support and validation is not introduced yet.

llvm-svn: 78890

MCContext no longer maintains a string -> section map.

llvm-svn: 78874

them, so it doesn't have to explicitly free them.

llvm-svn: 78870

int x __attribute__((section("_foo, _bar"))) = 4;
int y __attribute__((section("_foo, _bar, 4byte_literals"))) = 1;

llvm-svn: 78867

llvm-svn: 78866

llvm-svn: 78860

llvm-svn: 78677

llvm-svn: 78576

instead of syntactically as a string.  This means that it keeps track of the 
segment, section, flags, etc directly and asmprints them in the right format.
This also includes parsing and validation support for llvm-mc and 
"attribute(section)", so we should now start getting errors about invalid 
section attributes from the compiler instead of the assembler on darwin.

Still todo: 
1) Uniquing of darwin mcsections
2) Move all the Darwin stuff out to MCSectionMachO.[cpp|h]
3) there are a few FIXMEs, for example what is the syntax to get the
   S_GB_ZEROFILL segment type?

llvm-svn: 78547

2. Move section switch printing to MCSection virtual method which takes a
   TAI.  This eliminates textual formatting stuff from TLOF.
3. Eliminate SwitchToSectionDirective, getSectionFlagsAsString, and 
   TLOFELF::AtIsCommentChar.

llvm-svn: 78510

MCSection instances.

llvm-svn: 78500

A TAI hook is appropriate in this case because this is just an
asm syntax issue, not a semantic difference. TLOF should model
the semantics of the section.

llvm-svn: 78498

give the impls an object-file-specific name.  In the future
they can take different arguments etc.

llvm-svn: 78495

now that they create *all* the sections.

llvm-svn: 78494

creation activity into the target-specific subclasses of TLOF.
Before this, globals with explicit sections could be created by
the base class.

1. make getOrCreateSection protected, add a new getExplicitSectionGlobal
   pure virtual method to assign sections to globals with a specified
   section.
2. eliminate getSpecialCasedSectionGlobals, which is now PIC specific.
3. eliminate the getKindForNamedSection virtual method, which is
   now just a static method for ELF.
4. Add implementions of getExplicitSectionGlobal for ELF/PECOFF/Darwin/PIC16.
   They are now all detangled and understandable, woo! :)

llvm-svn: 78319

getKindForGlobal.

llvm-svn: 78156

__TEXT,__ustring section on darwin.

llvm-svn: 78068

it is just being used as a prefix, so forward substitute it directly.

llvm-svn: 78067