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Commit Graph

24 Commits

Author SHA1 Message Date
David Blaikie
9bfe15c313 Revert "Revert "PR14606: debug info imported_module support""
This reverts commit r179840 with a fix to test/DebugInfo/two-cus-from-same-file.ll

I'm not sure why that test only failed on ARM & MIPS and not X86 Linux, even
though the debug info was clearly invalid on all of them, but this ought to fix
it.

llvm-svn: 179996
2013-04-22 06:12:31 +00:00
Eric Christopher
88bdd26cc9 Revert "PR14606: debug info imported_module support"
This reverts commit r179836 as it seems to have caused test failures.

llvm-svn: 179840
2013-04-19 07:47:16 +00:00
David Blaikie
46f35f8e56 PR14606: debug info imported_module support
Adding another CU-wide list, in this case of imported_modules (since they
should be relatively rare, it seemed better to add a list where each element
had a "context" value, rather than add a (usually empty) list to every scope).
This takes care of DW_TAG_imported_module, but to fully address PR14606 we'll
need to expand this to cover DW_TAG_imported_declaration too.

llvm-svn: 179836
2013-04-19 06:57:04 +00:00
David Blaikie
377434ec76 Revert "Adding DIImportedModules to DIScopes."
This reverts commit 342d92c7a0adeabc9ab00f3f0d88d739fe7da4c7.

Turns out we're going with a different schema design to represent
DW_TAG_imported_modules so we won't need this extra field.

llvm-svn: 178215
2013-03-28 02:44:59 +00:00
David Blaikie
75da1f2b54 Adding DIImportedModules to DIScopes.
This is just the basic groundwork for supporting DW_TAG_imported_module but I
wanted to commit this before pushing support further into Clang or LLVM so that
this rather churny change is isolated from the rest of the work. The major
churn here is obviously adding another field (within the common DIScope prefix)
to all DIScopes (files, classes, namespaces, lexical scopes, etc). This should
be the last big churny change needed for DW_TAG_imported_module/using directive
support/PR14606.

llvm-svn: 178099
2013-03-27 00:07:26 +00:00
David Blaikie
b2d35852ea Debug info: refactor the first field of DICompileUnit to be a raw file/directory pair
This removes the DICompileUnit special case from DIScope.

llvm-svn: 177610
2013-03-20 23:58:12 +00:00
David Blaikie
78d3bdea74 Debug Info: Swap the 2nd and 3rd parameters to DICompileUnit to match the common DIScope prefix
llvm-svn: 177595
2013-03-20 22:52:54 +00:00
David Blaikie
30abbc718f Remove unused field in DICompileUnit
llvm-svn: 177590
2013-03-20 22:34:33 +00:00
David Blaikie
dd2f7e5b88 Move the DIFile operand to DITypes from the 4th operand to the 2nd.
This is another step along the way to making all DIScopes have a common prefix
which can be added to in a general manner to support using directives
(DW_TAG_imported_module).

llvm-svn: 177462
2013-03-19 23:25:22 +00:00
David Blaikie
3193e0599a Split out filename & directory from DIFile to start generalizing over DIScopes
This is the first step to making all DIScopes have a common metadata prefix (so
that things (using directives, for example) that can appear in any scope can be
added to that common prefix). DIFile is itself a DIScope so the common prefix
of all DIScopes cannot be a DIFile - instead it's the raw filename/directory
name pair.

llvm-svn: 177239
2013-03-17 21:13:55 +00:00
David Blaikie
3c701e7671 Refactor filename/directory in DICompileUnit into a DIFile
This is the next step towards making the metadata for DIScopes have a common
prefix rather than having to delegate based on their tag type.

llvm-svn: 176913
2013-03-13 00:01:35 +00:00
David Blaikie
98d9ccffb8 Remove unused "isMain" field from DICompileUnit
llvm-svn: 176910
2013-03-12 22:43:04 +00:00
David Blaikie
c37a0a822a Update debug info test cases with empty SplitDebugFilename field.
This could be 'null' or the empty string, DIDescriptor::getStringField
coalesces the two cases anyway so it's just a matter of legible/efficient
representation.

The change in behavior of the DICompileUnit::get* functions could be
subsumed by the full verification check - but ideally that should just be an
assertion if we could front-load the actual debug info metadata failure paths.

llvm-svn: 176907
2013-03-12 22:25:36 +00:00
David Blaikie
00170a5a62 Upgrading debug info test cases to be (more) compatible with the current debug info format.
These cases were found by further work to remove support for debug info
versioning. Common cleanups (other than changing the version info in the tag
field) included adding the last parameter to compile_units (recently added for
fission support) and other cases of trailing fields in lexical blocks, compile
units, and subprograms.

llvm-svn: 176834
2013-03-11 22:37:40 +00:00
Manman Ren
6edff4edb0 Attempt to recover gdb bot after r174445.
Failure: undefined symbol 'Lline_table_start0'.
Root-cause: we use a symbol subtraction to calculate at_stmt_list, but
the line table entries are not dumped in the assembly.
Fix: use zero instead of a symbol subtraction for Compile Unit 0.

llvm-svn: 174479
2013-02-06 00:59:41 +00:00
Manman Ren
b9bd895a06 Dwarf: support for LTO where a single object file can have multiple line tables
We generate one line table for each compilation unit in the object file.
Reviewed by Eric and Kevin.

rdar://problem/13067005

llvm-svn: 174445
2013-02-05 21:52:47 +00:00
David Blaikie
7c3ec60da7 Remove the (apparently) unnecessary debug info metadata indirection.
The main lists of debug info metadata attached to the compile_unit had an extra
layer of metadata nodes they went through for no apparent reason. This patch
removes that (& still passes just as much of the GDB 7.5 test suite). If anyone
can show evidence as to why these extra metadata nodes are there I'm open to
reverting this patch & documenting why they're there.

llvm-svn: 174266
2013-02-02 05:56:24 +00:00
Eric Christopher
7096eb5a5c For the dwarf5 split debug info code split out the string section
per compile unit/skeleton compile unit. Update tests accordingly.

llvm-svn: 171133
2012-12-27 02:14:01 +00:00
Eric Christopher
4e278d30eb Use DW_FORM_flag_present to save space in debug information if we're
not in darwin gdb compat mode.

Fixes rdar://10975088

llvm-svn: 162526
2012-08-24 01:14:27 +00:00
Eric Christopher
dde7784606 Temporarily revert c23b933d5f8be9b51a1d22e717c0311f65f87dcd. It's causing
failures in the debug testsuite and possibly PR13486.

llvm-svn: 161121
2012-08-01 18:19:01 +00:00
Eric Christopher
acd91c534d Add a DW_AT_high_pc for CUs that are a single address range. Update
all tests accordingly.

Fixes PR13351.

Patch by shinichiro hamaji!

llvm-svn: 160899
2012-07-27 22:00:05 +00:00
Eric Christopher
39493f0f97 Revert "Reorder the sections being output to reduce the number of assembler"
The inline table needs to be constructed ahead of time so that it doesn't try to
create new strings while we're emitting everything.

This reverts commit a8ff9bccb399183cdd5f1c3cec2bda763664b4b0.

llvm-svn: 151864
2012-03-02 00:30:24 +00:00
Eric Christopher
3d271eb540 Reorder the sections being output to reduce the number of assembler
fixups that are being used to determine section offsets. Reduces
the total number of fixups by 50% for a non-trivial testcase.

Part of rdar://10413936

llvm-svn: 151852
2012-03-01 22:50:31 +00:00
Eli Friedman
b32279f1fc Move another test requiring x86 into X86 directory.
llvm-svn: 143421
2011-11-01 03:12:47 +00:00