llvm-6502/test/MC/MachO
Rafael Espindola 8093abb745 Add r224985 back with a fix.
The issues was that AArch64 has additional restrictions on when local
relocations can be used. We have to take those into consideration when
deciding to put a L symbol in the symbol table or not.

Original message:

Remove doesSectionRequireSymbols.

In an assembly expression like

bar:
.long L0 + 1

the intended semantics is that bar will contain a pointer one byte past L0.

In sections that are merged by content (strings, 4 byte constants, etc), a
single position in the section doesn't give the linker enough information.
For example, it would not be able to tell a relocation must point to the
end of a string, since that would look just like the start of the next.

The solution used in ELF to use relocation with symbols if there is a non-zero
addend.

In MachO before this patch we would just keep all symbols in some sections.

This would miss some cases (only cstrings on x86_64 were implemented) and was
inefficient since most relocations have an addend of 0 and can be represented
without the symbol.

This patch implements the non-zero addend logic for MachO too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225048 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-31 17:19:34 +00:00
..
AArch64 Add r224985 back with a fix. 2014-12-31 17:19:34 +00:00
ARM Convert test to llvm-readobj. NFC. 2014-12-29 22:14:35 +00:00
absolute.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
absolutize.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
bad-darwin-x86_64-32-bit-abs-addr.s
bad-darwin-x86_64-diff-relocs.s
bad-darwin-x86_64-reloc-expr1.s Fix a Mach-O assembler segfault for a subtraction expression with an undefined symbol. 2014-10-24 22:39:40 +00:00
bad-darwin-x86_64-reloc-expr2.s Fix a Mach-O assembler segfault for a subtraction expression with an undefined symbol. 2014-10-24 22:39:40 +00:00
bad-darwin-x86_64-reloc-expr.s
bad-dollar.s
bad-indirect-symbols.s
bad-macro.s
bss.s
comm-1.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
darwin-complex-difference.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
darwin-x86_64-diff-reloc-assign-2.s Don't produce relocations for a difference in a section with no symbols. 2014-11-04 22:10:33 +00:00
darwin-x86_64-diff-reloc-assign.s
darwin-x86_64-diff-relocs.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
darwin-x86_64-nobase-relocs.s
darwin-x86_64-reloc-offsets.s
darwin-x86_64-reloc.s Convert test to llvm-readobj. NFC. 2014-12-26 22:47:39 +00:00
data.s
debug_frame.s
diff-with-two-sections.s
direction_labels.s
eh_symbol.s
eh-frame-reloc.s
file.s Drop support for an old version of ld64 (from darwin 9). 2014-10-21 18:31:09 +00:00
gen-dwarf-cpp.s
gen-dwarf-macro-cpp.s
gen-dwarf-producer.s
gen-dwarf.s
i386-large-relocations.s
indirect-symbols.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
jcc.s
lcomm-attributes.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
linker-option-1.s
linker-option-2.s
linker-options.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
lit.local.cfg
loc.s
osx-version-min-load-command.s
pcrel-to-other-section.s
pr19185.s
previous.s
pushsection.s
relax-jumps.s
relax-recompute-align.s
reloc-diff.s
reloc-pcrel-offset.s
reloc-pcrel.s
reloc.s Use llvm-readobj. NFC. 2014-12-26 18:22:05 +00:00
section-align-1.s
section-align-2.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
section-attributes.s
section-flags.s
string-table.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
symbol-diff.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
symbol-flags.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
symbol-indirect.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
symbols-1.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
tbss.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
tdata.s
temp-labels.s
thread_init_func.s
tls.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
tlv-bss.ll
tlv-reloc.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
tlv.s
values.s
variable-errors.s
variable-exprs.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
weakdef.s
x86_32-optimal_nop.s
x86_32-scattered-reloc-fallback.s
x86_32-sections.s
x86_32-symbols.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
x86_64-mergeable.s Add r224985 back with a fix. 2014-12-31 17:19:34 +00:00
x86_64-reloc-arithmetic.s
x86_64-sections.s
x86_64-symbols.s Add r224985 back with a fix. 2014-12-31 17:19:34 +00:00
x86-data-in-code.ll
zerofill-1.s
zerofill-2.s
zerofill-3.s MachObjectWriter: optimize the string table for common suffices 2014-10-06 17:05:19 +00:00
zerofill-4.s
zerofill-5.s
zerofill-sect-align.s