Use a comma after the unique keyword.

H.J. Lu noted that all .section options are separated by a comma.

This patch changes the syntax of unique to require one.

llvm-svn: 234174

Implement unique sections with an unique ID.

This allows the compiler/assembly programmer to switch back to a
section. This in turn fixes the bootstrap failure on powerpc (tested
on gcc110) without

Implement unique sections with an unique ID.

This allows the compiler/assembly programmer to switch back to a
section. This in turn fixes the bootstrap failure on powerpc (tested
on gcc110) without changing the ppc codegen at all.

I will try to cleanup the various getELFSection overloads in a followup patch.
Just using a default argument now would lead to ambiguities.

llvm-svn: 234099

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Add r228980 back.

Add support for having multiple sections with the same name and comdat.

Using this in combination with -ffunction-sections allows LLVM to output a .o
file with mulitple sections n

Add r228980 back.

Add support for having multiple sections with the same name and comdat.

Using this in combination with -ffunction-sections allows LLVM to output a .o
file with mulitple sections named .text. This saves space by avoiding long
unique names of the form .text.<C++ mangled name>.

llvm-svn: 229541

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Revert a series of commits starting at r228886 which is triggering some
regressions for LLDB on Linux. Rafael indicated on lldb-dev that we
should just go ahead and revert these but that he wasn't at

Revert a series of commits starting at r228886 which is triggering some
regressions for LLDB on Linux. Rafael indicated on lldb-dev that we
should just go ahead and revert these but that he wasn't at a computer.
The patches backed out are as follows:

r228980: Add support for having multiple sections with the name and ...
r228889: Invert the section relocation map.
r228888: Use the existing SymbolTableIndex intsead of doing a lookup.
r228886: Create the Section -> Rel Section map when it is first needed.

These patches look pretty nice to me, so hoping its not too hard to get
them re-instated. =D

llvm-svn: 229080

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Add support for having multiple sections with the same name and comdat.

Using this in combination with -ffunction-sections allows LLVM to output a .o
file with mulitple sections named .text. This sa

Add support for having multiple sections with the same name and comdat.

Using this in combination with -ffunction-sections allows LLVM to output a .o
file with mulitple sections named .text. This saves space by avoiding long
unique names of the form .text.<C++ mangled name>.

llvm-svn: 228980

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Compute the ELF SectionKind from the flags.

Any code creating an MCSectionELF knows ELF and already provides the flags.

SectionKind is an abstraction used by common code that uses a plain
MCSection

Compute the ELF SectionKind from the flags.

Any code creating an MCSectionELF knows ELF and already provides the flags.

SectionKind is an abstraction used by common code that uses a plain
MCSection.

Use the flags to compute the SectionKind. This removes a lot of
guessing and boilerplate from the MCSectionELF construction.

llvm-svn: 227476

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Downgrade DWARF2 section limit error to a warning

We currently emit an error when trying to assemble a file with more
than one section using DWARF2 debug info. This should be a warning
instead, as t

Downgrade DWARF2 section limit error to a warning

We currently emit an error when trying to assemble a file with more
than one section using DWARF2 debug info. This should be a warning
instead, as the resulting file will still be usable, but with a
degraded debug illusion.

llvm-svn: 218241

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Emit DWARF info for all code section in an assembly file

Currently, when using llvm as an assembler, DWARF debug information is only
generated for the .text section. This patch modifies this so that

Emit DWARF info for all code section in an assembly file

Currently, when using llvm as an assembler, DWARF debug information is only
generated for the .text section. This patch modifies this so that DWARF info
is emitted for all executable sections.

llvm-svn: 211273

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MC: make ELF .type handling more GNU AS compatible

GAS documents the .type directive as having an optional comma following the key
symbol name when using the STT_<TYPE_IN_UPPER_CASE> form. However,

MC: make ELF .type handling more GNU AS compatible

GAS documents the .type directive as having an optional comma following the key
symbol name when using the STT_<TYPE_IN_UPPER_CASE> form. However, it treats
the comma as optional in all cases. This makes the IAS support both forms of
inputs. Furthermore, the prefixed forms take either the upper case name or the
lower case alias.

The tests are split into two separate sets as the hash character serves as a
comment character on x86, which is tested in the second set by using arm-elf
which uses the at symbol as a comment character.

llvm-svn: 210407

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[C++] Use 'nullptr'.

llvm-svn: 207083

Map ELf flags back to more specific section kinds.

With that, convert another llc -filetype=obj test.

llvm-svn: 205031

[C++11] Add 'override' keyword to virtual methods that override their base class.

llvm-svn: 203342

Add support for parsing sun-style section flags in ELFAsmParser.

llvm-svn: 202573

Fix parsing of .symver directive on ARM

ARM assembly syntax uses @ for a comment, execpt for the second
parameter of the .symver directive which requires @ as part of the
symbol name. This commit fi

Fix parsing of .symver directive on ARM

ARM assembly syntax uses @ for a comment, execpt for the second
parameter of the .symver directive which requires @ as part of the
symbol name. This commit fixes the parsing of this directive by
adding a special case for ARM for this one argumnet.

To make the change we had to move the AllowAtInIdentifier variable
to the MCAsmLexer interface (from AsmLexer) and expose a setter for
the value. The ELFAsmParser then toggles this value when parsing
the second argument to the .symver directive for a target that
uses @ as a comment symbol

llvm-svn: 199339

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Move .ident handling to MCStreamer.

No functionality change, but exposes the API so that codegen can use it too.

Patch by Katya Romanova.

llvm-svn: 192757

ELF: Parse types in directives like binutils gas

Allow binutils .type and .section directives to take the following
forms:
- @<type>
- %<type>
- "<type>"

llvm-svn: 191134

ELF: Add support for the exclude section bit for gas compat.

llvm-svn: 190769

MC: Add support for '?' flags in .section directives

Summary:
The '?' flag uses the last section group if the last had a section
group. We treat combining an explicit section group and the '?' as a

MC: Add support for '?' flags in .section directives

Summary:
The '?' flag uses the last section group if the last had a section
group. We treat combining an explicit section group and the '?' as a
hard error.

This fixes PR17198.

Reviewers: rafael, bkramer

Reviewed By: bkramer

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1686

llvm-svn: 190768

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Remove unused StringRef that no compiler warned about, I wonder why.

llvm-svn: 190759

Add support for subsections to the ELF assembler. Fixes PR8717.

Differential Revision: http://llvm-reviews.chandlerc.com/D598

llvm-svn: 179725

MCParser: Update method names per coding guidelines.

s/AddDirectiveHandler/addDirectiveHandler/
s/ParseMSInlineAsm/parseMSInlineAsm/
s/ParseIdentifier/parseIdentifier/
s/ParseStringToEndOfStatement/

MCParser: Update method names per coding guidelines.

s/AddDirectiveHandler/addDirectiveHandler/
s/ParseMSInlineAsm/parseMSInlineAsm/
s/ParseIdentifier/parseIdentifier/
s/ParseStringToEndOfStatement/parseStringToEndOfStatement/
s/ParseEscapedString/parseEscapedString/
s/EatToEndOfStatement/eatToEndOfStatement/
s/ParseExpression/parseExpression/
s/ParseParenExpression/parseParenExpression/
s/ParseAbsoluteExpression/parseAbsoluteExpression/
s/CheckForValidSection/checkForValidSection/

http://llvm.org/docs/CodingStandards.html#name-types-functions-variables-and-enumerators-properly

No functional change intended.

llvm-svn: 175675

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Derive ELF section type from the name in some cases where GNU as does
so.

llvm-svn: 175327

Use the ExtensionDirectiveHandler type in other places where it makes sense.

Since we already have this type it's a shame to keep dragging a pair of object
and method around explicitly.

llvm-svn: 1

Use the ExtensionDirectiveHandler type in other places where it makes sense.

Since we already have this type it's a shame to keep dragging a pair of object
and method around explicitly.

llvm-svn: 172584

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These functions have default arguments of 0 for the last arg. Use
them.

llvm-svn: 171933

Remove redundant semicolons which are null statements.

llvm-svn: 163547