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authorBoris Kolpackov <boris@codesynthesis.com>2021-11-11 13:20:30 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2021-11-23 13:07:58 +0200
commit939beb11a5ccf58d7fe79a809a1b592c5c9143c0 (patch)
tree2aff4e52f277ecac62ce1cb8bf302ffd0884666a /libbuild2/cc/compile-rule.hxx
parent189a1c2a8fad0716e0bc4132e21f664c80d7574b (diff)
Add support for dynamic dependencies in ad hoc Buildscript recipes
Specifically, add the new `depdb dyndep` builtin that can be used to extract dynamic dependencies from a program run or a file. For example: obje{hello.o}: cxx{hello} {{ s = $path($<[0]) depdb dyndep $cxx.poptions $cc.poptions --what=header --default-prereq-type=h -- $cxx.path $cxx.poptions $cc.poptions $cxx.mode -M -MG $s diag c++ ($<[0]) o = $path($>) $cxx.path $cxx.poptions $cc.poptions $cc.coptions $cxx.coptions $cxx.mode -o $o -c $s }} Currently only the `make` dependency format is supported.
Diffstat (limited to 'libbuild2/cc/compile-rule.hxx')
-rw-r--r--libbuild2/cc/compile-rule.hxx44
1 files changed, 11 insertions, 33 deletions
diff --git a/libbuild2/cc/compile-rule.hxx b/libbuild2/cc/compile-rule.hxx
index f573968..568c04b 100644
--- a/libbuild2/cc/compile-rule.hxx
+++ b/libbuild2/cc/compile-rule.hxx
@@ -8,6 +8,7 @@
#include <libbuild2/utility.hxx>
#include <libbuild2/rule.hxx>
+#include <libbuild2/dyndep.hxx>
#include <libbuild2/file-cache.hxx>
#include <libbuild2/cc/types.hxx>
@@ -37,7 +38,8 @@ namespace build2
};
class LIBBUILD2_CC_SYMEXPORT compile_rule: public simple_rule,
- virtual common
+ virtual common,
+ dyndep_rule
{
public:
compile_rule (data&&);
@@ -91,45 +93,21 @@ namespace build2
const scope&,
action, const target&, linfo) const;
- // Mapping of include prefixes (e.g., foo in <foo/bar>) for auto-
- // generated headers to directories where they will be generated.
- //
- // We are using a prefix map of directories (dir_path_map) instead of
- // just a map in order to also cover sub-paths (e.g., <foo/more/bar> if
- // we continue with the example). Specifically, we need to make sure we
- // don't treat foobar as a sub-directory of foo.
- //
- // The priority is used to decide who should override whom. Lesser
- // values are considered higher priority. Note that we can have multiple
- // prefixless mapping (where priority is used to determine the order).
- // See append_prefixes() for details.
- //
- // @@ The keys should be normalized.
- //
- struct prefix_value
- {
- dir_path directory;
- size_t priority;
- };
- using prefix_map = dir_path_multimap<prefix_value>;
+ using prefix_map = dyndep_rule::prefix_map;
+ using srcout_map = dyndep_rule::srcout_map;
void
- append_prefixes (prefix_map&, const target&, const variable&) const;
+ append_prefixes (prefix_map&,
+ const scope&, const target&,
+ const variable&) const;
void
append_library_prefixes (appended_libraries&, prefix_map&,
const scope&,
- action, target&, linfo) const;
+ action, const target&, linfo) const;
prefix_map
- build_prefix_map (const scope&, action, target&, linfo) const;
-
- small_vector<const target_type*, 2>
- map_extension (const scope&, const string&, const string&) const;
-
- // Src-to-out re-mapping. See extract_headers() for details.
- //
- using srcout_map = path_map<dir_path>;
+ build_prefix_map (const scope&, action, const target&, linfo) const;
struct module_mapper_state;
@@ -143,7 +121,7 @@ namespace build2
pair<const file*, bool>
enter_header (action, const scope&, file&, linfo,
path&&, bool, bool,
- optional<prefix_map>&, srcout_map&) const;
+ optional<prefix_map>&, const srcout_map&) const;
optional<bool>
inject_header (action, file&, const file&, timestamp, bool) const;