Commit Graph

19 Commits

Author SHA1 Message Date
Kai Nacke 8539b4637b Fix alignment of unwind data.
For alignment purposes, the instruction array will always have an even
number of entries, with the final entry potentially unused (in which
case the array will be one longer than indicated by the count of unwind
codes field).

Reviewed by Anton Korobeynikov, Charles Davis and Nico Rieck.

llvm-svn: 190767
2013-09-15 18:01:09 +00:00
Kai Nacke 74adc8a457 Generate IMAGE_REL_AMD64_ADDR32NB relocations for SEH
data structures.

The Win64 EH data structures must be of type IMAGE_REL_AMD64_ADDR32NB
instead of IMAGE_REL_AMD64_ADDR32. This is easiely achieved by adding
the VK_COFF_IMGREL32 modifier to the symbol reference.
Change also references to start and end of the SEH range of a function
as offsets to start of the function.

Reviewed by Jim Grosbach, Charles Davis and Nico Rieck.

llvm-svn: 190766
2013-09-15 17:46:46 +00:00
Kai Nacke 1b7e4866f4 Fix wrong code offset for unwind code SET_FPREG.
The code offset for unwind code SET_FPREG is wrong because it is set
to constant 0. The fix is to do the same as for the other unwind
codes: emit a label and later the absolute difference between the
label and the begin of the prologue.
Also enables the failing test case MC/COFF/seh.s

Reviewed by Jim Grosbach, Charles Davis and Nico Rieck.

llvm-svn: 189309
2013-08-27 04:16:16 +00:00
Kai Nacke c5cca5ab42 Revert: Fix wrong code offset for unwind code SET_FPREG.
llvm-svn: 185793
2013-07-08 04:48:34 +00:00
Kai Nacke 939ecd7ea0 Revert: Generate IMAGE_REL_AMD64_ADDR32NB relocations for SEH data structures.
llvm-svn: 185791
2013-07-08 04:46:55 +00:00
Kai Nacke 07bad44e9b Revert: Fix alignment of unwind data.
llvm-svn: 185790
2013-07-08 04:45:05 +00:00
Kai Nacke 4417cccba3 Fix alignment of unwind data.
For alignment purposes, the instruction array will always have an even
number of entries, with the final entry potentially unused (in which
case the array will be one longer than indicated by the count of unwind
codes field).

Reviewed by Charles Davis and Nico Rieck.

llvm-svn: 185760
2013-07-06 17:16:50 +00:00
Kai Nacke 2a933a6549 Generate IMAGE_REL_AMD64_ADDR32NB relocations for SEH
data structures.

The Win64 EH data structures must be of type IMAGE_REL_AMD64_ADDR32NB
instead of IMAGE_REL_AMD64_ADDR32. This is easiely achieved by adding
the VK_COFF_IMGREL32 modifier to the symbol reference.
Change also references to start and end of the SEH range of a function
as offsets to start of the function.

Reviewed by Charles Davis and Nico Rieck.

llvm-svn: 185759
2013-07-06 17:16:12 +00:00
Kai Nacke 66bfdb8354 Fix wrong code offset for unwind code SET_FPREG.
The code offset for unwind code SET_FPREG is wrong because it is set
to constant 0. The fix is to do the same as for the other unwind
codes: emit a label and later the absolute difference between the
label and the begin of the prologue.
Also enables the failing test case MC/COFF/seh.s

Reviewed by Charles Davis and Nico Rieck.

llvm-svn: 185758
2013-07-06 17:15:36 +00:00
Chandler Carruth ed0881b2a6 Use the new script to sort the includes of every file under lib.
Sooooo many of these had incorrect or strange main module includes.
I have manually inspected all of these, and fixed the main module
include to be the nearest plausible thing I could find. If you own or
care about any of these source files, I encourage you to take some time
and check that these edits were sensible. I can't have broken anything
(I strictly added headers, and reordered them, never removed), but they
may not be the headers you'd really like to identify as containing the
API being implemented.

Many forward declarations and missing includes were added to a header
files to allow them to parse cleanly when included first. The main
module rule does in fact have its merits. =]

llvm-svn: 169131
2012-12-03 16:50:05 +00:00
Anton Korobeynikov cc8c539300 Fix for .pdata and .xdata section attributes on COFF.
Patch by kai@redstar.de !

llvm-svn: 161487
2012-08-08 12:46:46 +00:00
Evan Cheng 76792992d6 Add MCObjectFileInfo and sink the MCSections initialization code from
TargetLoweringObjectFileImpl down to MCObjectFileInfo.

TargetAsmInfo is done to one last method. It's *almost* gone!

llvm-svn: 135569
2011-07-20 05:58:47 +00:00
Evan Cheng a83b37a9db Move some parts of TargetAsmInfo down to MCAsmInfo. This is not the greatest
solution but it is a small step towards removing the horror that is
TargetAsmInfo.

llvm-svn: 135237
2011-07-15 02:09:41 +00:00
Charles Davis 03eef62db0 Add a parameter to the Win64 EH section getters to get a section with a
suffix (e.g. .xdata$myfunc). The suffix part isn't implemented yet, but
I'll get to it in the next patch.

Fix up all callers of the affected functions. Make them pass said suffix to
the function.

llvm-svn: 132205
2011-05-27 19:09:24 +00:00
Charles Davis ea5dc3a67b Assorted fixes for Win64 EH unwind info emission:
- Flip order of bitfields. This gets our output matching GAS.
- Handle case where the end of the prolog wasn't specified.
- If the resulting unwind info struct is less than 8 bytes, pad to 8 bytes.

Add a test for the latter two.

llvm-svn: 132188
2011-05-27 15:10:25 +00:00
Charles Davis 6d1c4c73a9 Start keeping track of where the various unwind instructions are in the prolog.
Use them to calculate the offset inside the prolog. Emit this value when
emitting the unwind codes.

llvm-svn: 132177
2011-05-27 03:25:01 +00:00
Charles Davis 761313b28d Add missing break statements. Align UNWIND_INFO and RUNTIME_FUNCTION structs
to 4 bytes.

I'm surprised no one caught the missing break statements.

llvm-svn: 132176
2011-05-27 02:43:19 +00:00
Charles Davis bc2daa0f93 Implement emission of all Win64 exception tables. Make the COFF streamer emit
these tables.

llvm-svn: 131833
2011-05-22 04:15:07 +00:00
Charles Davis 1c8bd5ad7e Make the COFF streamer emit unwind info when processing a .seh_handlerdata
directive.

Implement emission of Win64 EH unwind info.

Pull in <cassert> in MCWin64EH.h so it can use the assert() macro.

llvm-svn: 131832
2011-05-22 03:01:05 +00:00