Commit Graph

88 Commits

Author SHA1 Message Date
Akira Hatanaka
ec5e97f5c8 Add comment for relocations MO_HIGHER and HIGHEST in MipsBaseInfo.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160636 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-23 19:19:20 +00:00
Akira Hatanaka
b22c9289b0 Add HIGHER and HIGHEST relocations to Mips backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160599 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-21 03:09:04 +00:00
Jack Carter
fd506efec6 The Mips specific relocation R_MIPS_GOT_DISP
is used in cases where global symbols are 
directly represented in the GOT and we use an 
offset into the global offset table.

This patch adds direct object support for R_MIPS_GOT_DISP.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160183 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-13 19:15:47 +00:00
Jack Carter
1d82115042 Patch for Mips direct object generation.
When WriteFragmentData() case FT_align called
Asm.getBackend().writeNopData() is called, nothing
is done since Mips implementation of writeNopData just
returned "true".

For some reason this has not caused problems in 32 bit
mode, but in 64 bit mode it caused an assert when processing
multiple function units.

The test case included will assert without this patch. It
runs twice with different flags to prevent false positives
due to changes in code generation over time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160084 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-11 22:17:39 +00:00
Jack Carter
39ae36337f Pass the correct ELFOSABI enumeration to the MipsELFObjectWriter constructor
Contributer: Sasa Stankovic 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159574 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02 20:04:43 +00:00
Jack Carter
0140e55393 This allows hello world to be compiled for Mips 64 direct object.
It takes advantage of r159299 which introduces relocation support for N64. 
elf-dump needed to be upgraded to support N64 relocations as well.

This passes make check.

Jack


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159301 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-27 22:48:25 +00:00
Jack Carter
93ee286e8d The ELF relocation record format is different for N64
which many Mips 64 ABIs use than for O64 which many 
if not all other target ABIs use.

Most architectures have the following 64 bit relocation record format:

  typedef struct
  {
    Elf64_Addr   r_offset; /* Address of reference */
    Elf64_Xword  r_info;   /* Symbol index and type of relocation */
  } Elf64_Rel;

  typedef struct
  {
    Elf64_Addr    r_offset;
    Elf64_Xword   r_info;
    Elf64_Sxword  r_addend;
  } Elf64_Rela;

Whereas N64 has the following format:

  typedef struct
  {
    Elf64_Addr    r_offset;/* Address of reference */
    Elf64_Word  r_sym;     /* Symbol index */
    Elf64_Byte  r_ssym;    /* Special symbol */
    Elf64_Byte  r_type3;   /* Relocation type */
    Elf64_Byte  r_type2;   /* Relocation type */
    Elf64_Byte  r_type;    /* Relocation type */
  } Elf64_Rel;

  typedef struct
  {
    Elf64_Addr    r_offset;/* Address of reference */
    Elf64_Word  r_sym;     /* Symbol index */
    Elf64_Byte  r_ssym;    /* Special symbol */
    Elf64_Byte  r_type3;   /* Relocation type */
    Elf64_Byte  r_type2;   /* Relocation type */
    Elf64_Byte  r_type;    /* Relocation type */
    Elf64_Sxword  r_addend;
  } Elf64_Rela;

The structure is the same size, but the r_info data element 
is now 5 separate elements. Besides the content aspects, 
endian byte reordering will be different for the area with 
each element being endianized separately.

I treat this as generic and continue to pass r_type as 
an integer masking and unmasking the byte sized N64 
values for N64 mode. I've implemented this and it causes no 
affect on other current targets.

This passes make check.

Jack


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159299 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-27 22:28:30 +00:00
Akira Hatanaka
864f66085c Fix coding style violations. Remove white spaces and tabs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158471 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-14 21:10:56 +00:00
Jack Carter
b9bfe48e0a Test commit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158250 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-09 00:27:55 +00:00
Jim Grosbach
918f55fe23 Allow MCCodeEmitter access to the target MCRegisterInfo.
Add the MCRegisterInfo to the factories and constructors.

Patch by Tom Stellard <Tom.Stellard@amd.com>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156828 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-15 17:35:52 +00:00
Bill Wendling
eb23f9e92e Remove some potential warnings about variables used uninitialized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155307 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-22 07:23:04 +00:00
Akira Hatanaka
ecdc9d5bb2 Add disassembler to MIPS.
Patch by Vladimir Medic. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154935 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-17 18:03:21 +00:00
Akira Hatanaka
3ef7edc77a Do not add offset in applyFixup. This has already been accounted for in Value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154838 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-16 18:00:19 +00:00
Akira Hatanaka
02365945a6 Revert r153924. There were buildbot failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153925 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-03 02:51:09 +00:00
Akira Hatanaka
885020a7a7 MIPS disassembler support.
Patch by Vladimir Medic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153924 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-03 02:20:58 +00:00
Akira Hatanaka
a551a48402 Initial 64 bit direct object support.
This patch allows llvm to recognize that a 64 bit object file is being produced
and that the subsequently generated ELF header has the correct information.

The test case checks for both big and little endian flavors.

Patch by Jack Carter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153889 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-02 19:25:22 +00:00
Craig Topper
17463b3ef1 Make MCInstrInfo available to the MCInstPrinter. This will be used to remove getInstructionName and the static data it contains since the same tables are already in MCInstrInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153860 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-02 06:09:36 +00:00
Akira Hatanaka
b2874df81d Select static relocation model if it is jitting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153795 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-31 02:38:36 +00:00
Akira Hatanaka
37ac18ef2f Sort relocation entries before they are written out to a file. MIPS ABI
imposes a constraint that GOT16 referring to a local symbol or HI16 has to be
followed immediately by a matching LO16 relocation.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153553 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-28 00:23:33 +00:00
Craig Topper
4e02f23de2 Prune some includes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153502 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-27 07:54:11 +00:00
Akira Hatanaka
59182f9425 Retrieve and add the offset of a symbol in applyFixup rather than retrieve and
set it in MipsMCCodeEmitter::getMachineOpValue. Assert in getMachineOpValue if
MachineOperand MO is of an unexpected type. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153494 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-27 02:33:05 +00:00
Akira Hatanaka
d7edf7edd4 Define function MipsGetSymAndOffset which returns a fixup's symbol and the
offset applied to it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153493 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-27 02:04:18 +00:00
Akira Hatanaka
bca9c25dab Rewrite computation of Value in adjustFixupValue so that the upper 48-bits are
cleared. No functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153491 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-27 01:50:08 +00:00
Craig Topper
f1d0f7781e Prune some includes and forward declarations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153429 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-26 06:58:25 +00:00
Craig Topper
9be7c94ccd Add typecast to silence -Wswitch warning introduced by r153153.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153155 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-21 02:28:53 +00:00
Akira Hatanaka
fb54afbcb8 Incremental big endian patch by Jack Carter.
These changes allow us to compile big endian from the command line for 32 bit
Mips targets. This patch will result in code and data actually being produced
in the correct endianess.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153153 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-21 00:52:01 +00:00
Jim Grosbach
c6449b636f Make MCRegisterInfo available to the the MCInstPrinter.
Used to allow context sensitive printing of super-register or sub-register
references.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152043 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-05 19:33:20 +00:00
Akira Hatanaka
e9e520f23e Pass endian information to constructors. Define separate functions to create
objects for big endian and little endian targets.

Patch by Jack Carter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151788 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01 01:53:15 +00:00
Jia Liu
bb481f8820 remove blanks, and some code format
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151625 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-28 07:46:26 +00:00
Jia Liu
8060356377 comment fix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151341 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24 02:17:26 +00:00
Jia Liu
c2e2dcd56f some comment fix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151340 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24 02:15:57 +00:00
Jia Liu
fc77014f24 replace a balnk with -
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151337 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24 02:05:28 +00:00
Jia Liu
c5707112e7 remove Emacs-tag form .cpp files in Mips Backend, and fix some typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150805 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-17 08:55:11 +00:00
Jia Liu
8f5e8c1cd6 add Emacs tag and fix some comment error in file headers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150775 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-17 01:23:50 +00:00
Craig Topper
655b8de7b2 Convert assert(0) to llvm_unreachable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149814 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 07:21:30 +00:00
Akira Hatanaka
6c2cf8b1fb Add a new MachineJumpTableInfo entry type, EK_GPRel64BlockAddress, which is
needed to emit a 64-bit gp-relative relocation entry. Make changes necessary
for emitting jump tables which have entries with directive .gpdword. This patch
does not implement the parts needed for direct object emission or JIT.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149668 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-03 04:33:00 +00:00
James Molloy
2d8955a77c Ensure .AliasedSymbol() is called on all uses of getSymbol(). Affects ARM and MIPS ELF backends.
Fixes PR11877



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149180 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-28 15:58:32 +00:00
Owen Anderson
4f8dc7b17a Widen the instruction encoder that TblGen emits to a 64 bits, which should accomodate every target I can think of offhand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148833 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-24 18:37:29 +00:00
David Blaikie
4d6ccb5f68 More dead code removal (using -Wunreachable-code)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148578 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20 21:51:11 +00:00
Jim Grosbach
ec3433852d Tidy up. MCAsmBackend naming conventions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148400 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18 18:52:16 +00:00
Rafael Espindola
29a17145ad Add big endian mips support. Based on a patch by Jack Carter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147924 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11 04:04:14 +00:00
Rafael Espindola
090445967f Move the Mips only bits of the ELF writer to lib/Target/Mips.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147133 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22 03:03:17 +00:00
Akira Hatanaka
bc24985c5f Local dynamic TLS model for direct object output. Create the correct TLS MIPS
ELF relocations.

Patch by Jack Carter.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147118 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22 01:05:17 +00:00
Rafael Espindola
dc9a8a378d Reduce the exposure of Triple::OSType in the ELF object writer. This will
avoid including ADT/Triple.h in many places when the target specific bits are
moved.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147059 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-21 17:00:36 +00:00
Akira Hatanaka
8dc684d2a2 64-bit data directive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147005 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-20 22:52:19 +00:00
David Blaikie
2d24e2a396 Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146960 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-20 02:50:00 +00:00
Akira Hatanaka
8209968306 Tidy up. Simplify logic. No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146896 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-19 19:52:25 +00:00
Akira Hatanaka
3faac0a78c Add support for local dynamic TLS model in LowerGlobalTLSAddress. Direct object
emission is not supported yet, but a patch that adds the support should follow
soon.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146572 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-14 18:26:41 +00:00
Daniel Dunbar
4ab406d7fc LLVMBuild: Remove trailing newline, which irked me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146409 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-12 19:48:00 +00:00
Bruno Cardoso Lopes
d1bcf0dbc1 Variable cleanup. Based on past patch submittals variable names have
been normalized and more descriptive comments added. Patch by Reed
Kotler and Jack Carter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146088 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-07 22:35:30 +00:00