Commit Graph

11 Commits

Author SHA1 Message Date
Rafael Espindola
eb3eb88fb7 Add STB_GNU_UNIQUE to the ELF writer.
This lets llvm-mc assemble files produced by gcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226895 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-23 04:44:35 +00:00
Ulrich Weigand
c345ba880d [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 ...



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212834 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-11 17:34:44 +00:00
Logan Chien
175fe68393 [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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196440 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-05 00:34:11 +00:00
Joerg Sonnenberger
72580780a9 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".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193569 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-29 01:06:17 +00:00
Jack Carter
77afbdce53 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




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175561 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-19 21:57:35 +00:00
Tim Northover
6eb3e87df0 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169609 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07 16:50:23 +00:00
Roman Divacky
a0c17a495b Add support for gnu_indirect_function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146377 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-12 17:34:04 +00:00
Evan Cheng
78c10eeaa5 Rename TargetAsmBackend to MCAsmBackend; rename createAsmBackend to createMCAsmBackend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136010 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25 23:24:55 +00:00
Evan Cheng
a7cfc08ebe Move TargetAsmParser.h TargetAsmBackend.h and TargetAsmLexer.h to MC where they belong.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135833 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23 00:45:41 +00:00
Rafael Espindola
6469540adf 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!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131406 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16 16:17:21 +00:00
Jan Sjödin
2ddfd95d40 Make all static functions become static class methods. Move shared (duplicated) functions to new MCELF class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126686 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28 21:45:04 +00:00