b6a812ebb1
Add support for having multiple sections with the same name and comdat.
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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
2015-02-12 23:29:51 +00:00
ba31e27f0a
Compute the ELF SectionKind from the flags.
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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
2015-01-29 17:33:21 +00:00
352fb46d4f
delete function name from comment
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llvm-svn: 219443
2014-10-09 21:23:39 +00:00
fdc88137f4
Remove AllowQuotesInName and friends from MCAsmInfo.
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Accepting quotes is a property of an assembler, not of an object file. For
example, ELF can support any names for sections and symbols, but the gnu
assembler only accepts quotes in some contexts and llvm-mc in a few more.
LLVM should not produce different symbols based on a guess about which assembler
will be reading the code it is printing.
llvm-svn: 194575
2013-11-13 14:01:59 +00:00
ac511cac77
ELF: Add support for the exclude section bit for gas compat.
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llvm-svn: 190769
2013-09-15 19:53:20 +00:00
2f495b93ee
Add support for subsections to the ELF assembler. Fixes PR8717.
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Differential Revision: http://llvm-reviews.chandlerc.com/D598
llvm-svn: 179725
2013-04-17 21:18:16 +00:00
dc1e36e9f5
Tidy up. Trailing whitespace.
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llvm-svn: 156602
2012-05-11 01:41:30 +00:00
62f759791a
Be nice to Xcore and the XMOS assembler and avoid quoting section names
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that contain only letters, digits and the characters "_" and ".".
llvm-svn: 127028
2011-03-04 20:03:14 +00:00
852ab890b5
Bug#9033: For the ELF assembler output, always quote the section name.
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llvm-svn: 126963
2011-03-03 22:31:08 +00:00
70d8015063
Switch llvm to using comdats. For now always use groups with a single
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section.
llvm-svn: 125526
2011-02-14 22:23:49 +00:00
85bc995c5b
Move broken HasCommonSymbols to ELFWriter.cpp.
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llvm-svn: 125490
2011-02-14 16:51:08 +00:00
0e7e34e476
Remove more duplicated code.
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llvm-svn: 124056
2011-01-23 04:43:11 +00:00
aea4958ea6
Remove duplicated code.
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llvm-svn: 124054
2011-01-23 04:28:49 +00:00
9ae2d05d45
Add support for @note. Patch by Jörg Sonnenberger.
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llvm-svn: 122568
2010-12-26 21:30:59 +00:00
7a2cd8b540
make isVirtualSection a virtual method on MCSection. Chris' suggestion.
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llvm-svn: 119547
2010-11-17 20:03:54 +00:00
9bb44a5ce8
Fixed version of 118639 with an extra assert to catch similar problems
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earlier. Implicit bool -> int conversions are evil!
llvm-svn: 118651
2010-11-09 23:42:07 +00:00
33048f069f
Revert previous patch. Missed a case.
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llvm-svn: 118645
2010-11-09 22:54:38 +00:00
4bdd2724e3
Remove IsExplicit. It was always false.
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llvm-svn: 118639
2010-11-09 22:37:44 +00:00
87f77b5f9a
Add hook in MCSection to decide when to use "optimized nops", for each
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section kind. Previously, optimized nops were only used for MachO.
Also added tests for ELF and COFF.
llvm-svn: 115523
2010-10-04 17:32:41 +00:00
efbdbe5565
Move logic of determining ELF entsize from the .s printer to initialization
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time. That way, the EntrySize field is initialized for other code paths,
namely, the .ll -> .o code path.
llvm-svn: 115141
2010-09-30 05:59:22 +00:00
5418dd5fda
move elf section uniquing to MCContext. Along the way
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merge XCore's section into MCSectionELF
llvm-svn: 100812
2010-04-08 21:26:26 +00:00
94b993ed8a
Simplify some uses of str(n)cmp with StringRef.
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llvm-svn: 94189
2010-01-22 18:21:23 +00:00
b9d1f5a006
tidy
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llvm-svn: 93352
2010-01-13 21:21:29 +00:00
ad36e8aceb
Pass StringRef by value.
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llvm-svn: 86251
2009-11-06 10:58:06 +00:00
e9a75a6654
rename TAI -> MAI, being careful not to make MAILJMP instructions :)
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llvm-svn: 79777
2009-08-22 21:43:10 +00:00
7b26fce23e
Rename TargetAsmInfo (and its subclasses) to MCAsmInfo.
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llvm-svn: 79763
2009-08-22 20:48:53 +00:00
0fbe0f51a4
add support for target-specific ELF section flags, add a new MCSectionXCore
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class which represents the XCore cp/dp section flags. No functionality
change yet.
llvm-svn: 79077
2009-08-15 05:56:11 +00:00
c773141e66
*try* to use a better name to describe how common symbols are marked on the elf object file.
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llvm-svn: 79029
2009-08-14 19:45:38 +00:00
3e0bd7852f
Fix MCSectionELF::ShouldOmitSectionDirective's matching of .data and
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friends so that it doesn't match sections like .data.rel.local, which
should not be emitted as section directives.
llvm-svn: 78963
2009-08-13 23:56:34 +00:00
62e6a8bbe6
Remove HasCrazyBSS and add a flag in TAI to indicate that '.section'
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must be emitted for PowerPC-Linux '.bss' section
llvm-svn: 78958
2009-08-13 23:30:21 +00:00
df743ae603
Add a method to return if the ELF section contains only common symbols!
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llvm-svn: 78937
2009-08-13 21:08:56 +00:00
607cd3b63a
Change MCSectionELF to represent a section semantically instead of
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syntactically as a string, very similiar to what Chris did with MachO.
The parsing support and validation is not introduced yet.
llvm-svn: 78890
2009-08-13 05:07:35 +00:00
Rafael Espindola