Commit Graph

11 Commits

Author SHA1 Message Date
Rafael Espindola 5fa925ebf6 Add STB_GNU_UNIQUE to the ELF writer.
This lets llvm-mc assemble files produced by gcc.

llvm-svn: 226895
2015-01-23 04:44:35 +00:00
Ulrich Weigand 0a51abc100 [MC] Constify MCELF::GetVisibility and MCELF::getOther
These two routines didn't take a "const MCSymbolData &SD"
like the other MCELF::Get routines for some reason ...

llvm-svn: 212834
2014-07-11 17:34:44 +00:00
Logan Chien ee36595ce6 [mc] Fix ELF st_other flag.
ELF_Other_Weakref and ELF_Other_ThumbFunc seems to be LLVM
internal ELF symbol flags.  These should not be emitted to
object file.

This commit defines ELF_STO_Shift for the target-defined
flags for st_other, and increase the value of
ELF_Other_Shift to 16.

llvm-svn: 196440
2013-12-05 00:34:11 +00:00
Joerg Sonnenberger fc18473400 Move the STT_FILE symbols out of the normal symbol table processing for
ELF. They can overlap with the other symbols, e.g. if a source file
"foo.c" contains a function "foo" with a static variable "c".

llvm-svn: 193569
2013-10-29 01:06:17 +00:00
Jack Carter 2f8d9d913c ELF symbol table field st_other support,
excluding visibility bits.

Generic STO handling at the Target level.

The st_other field of the ELF symbol table is one
byte in size. The first 2 bytes are used for generic
visibility and are currently handled by llvm.

The other six bits are processor specific and need 
to be set at the target level.

A couple of notes:

The new static methods for accessing and setting the "other"
flags in include/llvm/MC/MCELF.h match the style guide
and not the other methods in the file. I don't like the
inconsistency, but feel I should follow the prescribed 
lowerUpper() convention.

STO_ value definitions are not specified in gnu land as 
consistently as the STT_ and STB_ fields. Probably because
the latter were defined in a standards doc and the former
defined partially in code. I have stuck with the full byte
definition of the flags.

Contributer: Zoran Jovanovic
llvm-svn: 175561
2013-02-19 21:57:35 +00:00
Tim Northover 5cc3dc86bb Added Mapping Symbols for ARM ELF
Before this patch, when you objdump an LLVM-compiled file, objdump tried to
decode data-in-code sections as if they were code.  This patch adds the missing
Mapping Symbols, as defined by "ELF for the ARM Architecture" (ARM IHI 0044D).

Patch based on work by Greg Fitzgerald.

llvm-svn: 169609
2012-12-07 16:50:23 +00:00
Roman Divacky 735cb8bcdc Add support for gnu_indirect_function.
llvm-svn: 146377
2011-12-12 17:34:04 +00:00
Evan Cheng 5928e69d20 Rename TargetAsmBackend to MCAsmBackend; rename createAsmBackend to createMCAsmBackend.
llvm-svn: 136010
2011-07-25 23:24:55 +00:00
Evan Cheng f2596bc62a Move TargetAsmParser.h TargetAsmBackend.h and TargetAsmLexer.h to MC where they belong.
llvm-svn: 135833
2011-07-23 00:45:41 +00:00
Rafael Espindola e90c1cb221 sets bit 0 of the function address of thumb function in .symtab
("T is 1 if the target symbol S has type STT_FUNC and the
symbol addresses a Thumb instruction ;it is 0 otherwise."
from "ELF for the ARM Architecture" 4.7.1.2)

Patch by Koan-Sin Tan!

llvm-svn: 131406
2011-05-16 16:17:21 +00:00
Jan Sjödin 30a52dec93 Make all static functions become static class methods. Move shared (duplicated) functions to new MCELF class.
llvm-svn: 126686
2011-02-28 21:45:04 +00:00