Commit Graph

94 Commits

Author SHA1 Message Date
Brad King fa4ae9fb12 Merge topic 'refactor-cmListFileBacktrace'
0f96ef00 Remove unused cmake::IssueMessage overload
563bf9dd cmState: Remove unused entry point fields from snapshot data
7c36d206 cmListFileBacktrace: Refactor storage to provide efficient value semantics
1f6bd8a9 cmState: Avoid accumulating snapshot storage for backtraces
18b6676b cmState: Add Snapshot method to get bottom of call stack
2016-04-18 11:07:07 -04:00
Brad King 563bf9dd8a cmState: Remove unused entry point fields from snapshot data
This information is now kept in cmMakefile::Backtrace.
2016-04-18 09:21:19 -04:00
Brad King 7c36d2067b cmListFileBacktrace: Refactor storage to provide efficient value semantics
Since commit v3.4.0-rc1~321^2~2 (Genex: Store a backtrace, not a pointer
to one, 2015-07-08) we treat cmListFileBacktrace instances as
lightweight values.  This was true at the time only because the
backtrace information was kept in the cmState snapshot hierarchy.
However, that forced us to accumulate a lot of otherwise short-lived
snapshots just to have the backtrace fields available for reference by
cmListFileBacktrace instances.  Recent refactoring made backtrace
instances independent of the snapshot hierarchy to avoid accumulating
short-lived snapshots.  This came at the cost of making backtrace values
heavy again, leading to lots of string coying and slower execution.

Fix this by refactoring cmListFileBacktrace to provide value semantics
with efficient shared storage underneath.  Teach cmMakefile to maintain
its call stack using an instance of cmListFileBacktrace.  This approach
allows the current backtrace to be efficiently saved whenever it is
needed.

Also teach cmListFileBacktrace the notion of a file-level scope.  This
is useful for messages about the whole file (e.g. during parsing) that
are not specific to any line within it.  Push the CMakeLists.txt scope
for each directory and never pop it.  This ensures that we always have
some context information and simplifies cmMakefile::IssueMessage.
Push/pop a file-level scope as each included file is processed.  This
supersedes cmParseFileScope and improves diagnostic message context
information in a few places.  Fix the corresponding test cases to expect
the improved output.
2016-04-18 09:21:19 -04:00
Stafen Teleman 5dc6cfd6ea Solaris: Add a CMAKE_HOST_SOLARIS variable (#16061) 2016-04-15 13:25:45 -04:00
Brad King 1f6bd8a93f cmState: Avoid accumulating snapshot storage for backtraces
Changes during post-3.3/pre-3.4 development refactored storage of most
configure-time information, including variable bindings and function
scopes.  All scopes (even short-lived) were kept persistently for
possible future debugging features, causing huge accumulated memory
usage.  This was mostly addressed by commit v3.4.1~4^2 (cmState: Avoid
accumulating snapshot storage for short-lived scopes, 2015-11-24).

Since then we still keep short-lived scopes when they are needed for a
backtrace.  This is because since commit v3.4.0-rc1~378^2
(cmListFileBacktrace: Implement in terms of cmState::Snapshot,
2015-05-29) backtraces have been lightweight objects that simply point
into the snapshot tree.  While the intention of this approach was to
avoid duplicating the call stack file path strings, the cost turned out
to be holding on to the entire call stack worth of scope snapshots,
which is much worse.

Furthermore, since commit v3.4.0-rc2~1^2 (cmIfCommand: Issue CMP0054
warning with appropriate context, 2015-10-20) all conditions used in
`if()` commands hold a backtrace for use in diagnostic messages.  Even
though the backtrace is short-lived it still causes the scope snapshot
to be kept.  This means that code like

    function(foo)
      if(0)
      endif()
    endfunction()

    foreach(i RANGE 1000000)
      foo()
    endforeach()

accumulates storage for the function call scope snapshots.

Fix this by partially reverting commit v3.4.0-rc1~378^2 and saving the
entire call stack during cmListFileBacktrace construction.  This way
we can avoid keeping short-lived scope snapshot storage in all cases.
2016-04-15 10:31:39 -04:00
Brad King 18b6676bff cmState: Add Snapshot method to get bottom of call stack
The bottom of the call stack is always a long-lived snapshot and can be
saved for later use with cmOutputConverter.
2016-04-15 10:31:39 -04:00
Brad King c54ed7813f cmState: Rename CallStack snapshots to IncludeFile 2016-04-12 16:08:24 -04:00
Brad King 9342a4c203 Merge branch 'reduce-cmState-accumulation' into reduce-cmState-accumulation-for-master 2015-11-25 12:33:06 -05:00
Brad King 5f860ebb67 cmState: Avoid accumulating snapshot storage for short-lived scopes
We need to keep only certain snapshot types and their ancestors.
Also keep those needed for backtraces.
2015-11-25 12:30:13 -05:00
Brad King f21dc4a81c cmState: Avoid accumulating policy stack storage for short-lived scopes
We enforce policy push/pop balance around any scope that pushes/pops a
snapshot.  Therefore a snapshot may never reference entries of
PolicyStack that were created in nested scopes.  Free storage of
short-lived policy stack entries when they are popped.
2015-11-25 10:37:59 -05:00
Brad King 518d6b22f6 cmLinkedTree: Rename 'Extend' method to 'Push'
Logically the method pushes a nested scope on top of a given scope
because the "up" pointer sequence forms a stack independent of any
other branches of the tree.
2015-11-25 10:23:05 -05:00
Brad King 99533c8e34 Merge topic 'fix-find_package-version-file-error-stack'
62126b67 Merge branch 'test-cmake_policy-unmatched' into fix-find_package-version-file-error-stack
2e28c619 cmState: Skip variable scope snapshots to avoid call stack duplicates
b219ff94 Tests: Add case for package version file unmatched policy scope
2015-11-25 09:21:49 -05:00
Brad King 32edac6fdd cmState: Enforce policy scope balancing around variable scopes
Everywhere we use cmMakefile::ScopePushPop to manage variable scopes
also expects policy scopes to be balanced.  There is no place that we
use cmMakefile::PolicyPushPop without also using ScopePushPop.  Relieve
PolicyPushPop of responsibility for policy scope balance checks by
moving it to ScopePushPop.
2015-11-24 19:38:36 -05:00
Brad King 2e28c619f8 cmState: Skip variable scope snapshots to avoid call stack duplicates
Since commit v3.4.0-rc1~179^2~1 (cmState: Add a VariableScope snapshot
type, 2015-08-23) the snapshot stack may have a VariableScopeType entry.
Skip over these when constructing the call stack, just as we do for
policy scopes.  Otherwise we report the command causing the variable
scope to be entered twice (e.g. find_package while loading a package
version file).
2015-11-24 14:09:27 -05:00
Stephen Kelly 55474e6182 cmState: Move GetTargetTypeName from cmTarget. 2015-10-15 00:41:40 +02:00
Stephen Kelly 2bf7de167f Subdirs: Initialize from parent before configuring.
Add new API for the subdirs command to cmState.

This fixes a regression introduced in commit f716460e (cmMakefile: Move
invokation to initialize snapshot., 2015-10-06).
2015-10-14 00:34:11 +02:00
Stephen Kelly 0aa34de549 cmState: Initialize properties immediately.
Don't leave this as cmMakefile responsibility.
2015-10-14 00:16:21 +02:00
Stephen Kelly 20b95ef8c8 cmState: Initialize default definitions immediately.
Don't leave this as cmMakefile responsibility.
2015-10-14 00:16:20 +02:00
Stephen Kelly 841164cb36 cmState: Initialize current directories immediately.
Don't leave this as cmMakefile responsibility.
2015-10-14 00:16:07 +02:00
Stephen Kelly 2c219bafc0 cmState: Initialize top level source directories immediately.
Don't leave this as cmMakefile responsibility.
2015-10-14 00:16:07 +02:00
Stephen Kelly 79a309d786 cmState: Port away from cmake instance. 2015-10-10 15:42:02 +02:00
Stephen Kelly e2eecae205 cmState: Move ParseCacheEntry from cmCacheManager. 2015-10-10 15:36:59 +02:00
Stephen Kelly b5212c68de cmState: Add API for cache version. 2015-10-10 15:36:58 +02:00
Stephen Kelly 95b0d761a7 cmState: Externalize logic to caller. 2015-10-10 15:36:58 +02:00
Stephen Kelly 435a2f3ccb cmCacheManager: Port away from cmake instance. 2015-10-10 15:36:58 +02:00
Stephen Kelly 062ed22ec4 cmState: Add cache file manipulation wrappers. 2015-10-10 15:36:58 +02:00
Stephen Kelly 28749903b6 cmState: Internalize the initialization of a snapshot from its parent. 2015-10-07 20:19:42 +02:00
Brad King 31117bb17c Merge topic 'fix-buildsystem-property-append'
ed258d60 Tests: Cover set_property for buildsystem directory properties
fb45c371 cmState: Only append non-empty values to buildsystem properties.
158f7e31 cmMakefile: Use appropriate parameter name.
08ce3f48 cmTarget: Only append non-empty values to buildsystem properties.
2015-09-14 09:19:59 -04:00
Stephen Kelly 3f4e5e8c3d cmState: Return end snapshot for GetBuildsystemDirectoryParent.
This is the appropriate snapshot for future use.  Existing users
of this method are mostly just calling GetDirectory on the result,
but the progress tracking of the Makefile generator needs a consistent
snapshot to be used, so the end snapshot should be consistently used.
2015-09-11 23:17:27 +02:00
Stephen Kelly fb45c37160 cmState: Only append non-empty values to buildsystem properties.
This is a change in behavior from CMake 3.3, but there is no semantic meaning
to empty entries in buildsystem properties.  This also restores behavior to
that of CMake 2.8.10.
2015-09-11 19:12:46 +02:00
Stephen Kelly 158f7e31dc cmMakefile: Use appropriate parameter name. 2015-09-11 18:30:47 +02:00
Brad King 0d0b9b52f8 Merge topic 'cmState-ProjectName'
637c56b4 cmGlobalGenerator: Implement FillProjectMap in terms of cmState.
b3f2299e cmState: Move ProjectName from cmMakefile.
6ce940ac cmMakefile: Use std::string in ProjectName API.
e8c0341d cmMakefile: Out-of-line GetProjectName.
2015-08-27 10:04:09 -04:00
Brad King 6904b6efdc Merge topic 'rm-cmLocalGenerator-Children'
867b5be8 cmLocalGenerator: Remove unused Children member.
6c832219 cmLocalGenerator: Implement child traversal in terms of cmState.
3fcf3837 Makefiles: Remove valueless cast.
223f4a66 cmLocalGenerator: Simplify condition.
ae026f54 cmState: Store Children states in parent state.
2015-08-27 10:04:07 -04:00
Stephen Kelly b3f2299e06 cmState: Move ProjectName from cmMakefile. 2015-08-25 19:57:42 +02:00
Stephen Kelly ae026f5458 cmState: Store Children states in parent state. 2015-08-24 20:05:37 +02:00
Stephen Kelly af9fc27753 cmState: Make Snapshot EqualityComparable. 2015-08-24 20:03:29 +02:00
Stephen Kelly f4150bd88d cmState: Move directory Properties from cmMakefile. 2015-08-24 20:02:21 +02:00
Brad King 2370a99400 Merge topic 'cmState-definitions'
bff27391 cmState: Host variable definitions.
6954c893 cmState: Add a VariableScope snapshot type.
1fc645bd cmState: Add a Base snapshot type.
0f070dd3 cmMakefile: Decouple the container of cmDefinitions from scoping logic.
25e04ddf cmDefinitions: Implement in terms of cmLinkedTree.
4bbe261c cmMakefile: Extract InitializeVarScope method.
2015-08-24 10:07:04 -04:00
Brad King d5d86ecf50 Merge topic 'refactor-progress'
3fa1b964 cmGlobalUnixMakefileGenerator3: Change the progress container key.
55e39276 cmState: Make it possible to order cmState::Snapshot.
04168cbb cmGlobalUnixMakefileGenerator3: Rename member.
2394584c cmGlobalGenerator: Rename progress initializer method.
b9eb3cd1 cmGlobalGenerator: Move LG to target map to subclass.
f5d2b7a6 cmGlobalGenerator: Remove clearance of map.
2015-08-24 10:06:58 -04:00
Stephen Kelly bff27391a9 cmState: Host variable definitions. 2015-08-23 19:05:11 +02:00
Stephen Kelly 55e3927634 cmState: Make it possible to order cmState::Snapshot. 2015-08-23 18:05:13 +02:00
Stephen Kelly 6954c8936f cmState: Add a VariableScope snapshot type.
Match the scopes currently used in cmMakefile for definitions.
2015-08-23 17:08:54 +02:00
Stephen Kelly 1fc645bd9c cmState: Add a Base snapshot type.
For completeness mostly.
2015-08-23 17:08:54 +02:00
Brad King a4bd30104f include_directories: Fix regression in BEFORE option (#15693)
Refactoring in commit 6ed9c7e0 (cmState: Host buildsystem properties for
directories, 2015-07-18) broke include_directories(BEFORE).  Fix it and
add a test case.
2015-08-21 15:21:37 -04:00
Stephen Kelly 757a1f5408 cmState: Move PolicyState from cmMakefile.
Implement lexical scope checking in terms of the state stack instead
of barriers.
2015-08-02 08:56:57 +02:00
Stephen Kelly 52dbe654de cmState: Record the end position of each directory.
At generate time, variables and policies are determined from the end
state of the cmMakefile.
2015-08-02 08:56:57 +02:00
Stephen Kelly 348354333a cmState: Add Type for policy scope. 2015-08-02 08:56:57 +02:00
Stephen Kelly af0de01c6b cmState: Remove call stack parent tracking.
This was added at a time when I thought the cmState would report errors,
but that is not the direction it is going.  The ordering of the stack of
scopes is canonical and clients are required to maintain it.
2015-08-01 07:31:08 +02:00
Stephen Kelly 0a01e6c6e7 cmState: Add Snapshot Type accessor. 2015-08-01 07:18:34 +02:00
Stephen Kelly 6ed9c7e024 cmState: Host buildsystem properties for directories. 2015-07-25 14:53:05 +02:00