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-rw-r--r--Documentation/sphinx/automarkup.py47
1 files changed, 47 insertions, 0 deletions
diff --git a/Documentation/sphinx/automarkup.py b/Documentation/sphinx/automarkup.py
index a413f8dd5115..22defc18d6d2 100644
--- a/Documentation/sphinx/automarkup.py
+++ b/Documentation/sphinx/automarkup.py
@@ -11,6 +11,8 @@ from sphinx.errors import NoUri
import re
from itertools import chain
+from kernel_abi import get_kernel_abi
+
#
# Python 2 lacks re.ASCII...
#
@@ -48,6 +50,8 @@ RE_typedef = re.compile(r'\b(typedef)\s+([a-zA-Z_]\w+)', flags=ascii_p3)
# an optional extension
#
RE_doc = re.compile(r'(\bDocumentation/)?((\.\./)*[\w\-/]+)\.(rst|txt)')
+RE_abi_file = re.compile(r'(\bDocumentation/ABI/[\w\-/]+)')
+RE_abi_symbol = re.compile(r'(\b/(sys|config|proc)/[\w\-/]+)')
RE_namespace = re.compile(r'^\s*..\s*c:namespace::\s*(\S+)\s*$')
@@ -84,10 +88,14 @@ def markup_refs(docname, app, node):
# Associate each regex with the function that will markup its matches
#
markup_func_sphinx2 = {RE_doc: markup_doc_ref,
+ RE_abi_file: markup_abi_ref,
+ RE_abi_symbol: markup_abi_ref,
RE_function: markup_c_ref,
RE_generic_type: markup_c_ref}
markup_func_sphinx3 = {RE_doc: markup_doc_ref,
+ RE_abi_file: markup_abi_ref,
+ RE_abi_symbol: markup_abi_ref,
RE_function: markup_func_ref_sphinx3,
RE_struct: markup_c_ref,
RE_union: markup_c_ref,
@@ -270,6 +278,45 @@ def markup_doc_ref(docname, app, match):
else:
return nodes.Text(match.group(0))
+#
+# Try to replace a documentation reference of the form Documentation/ABI/...
+# with a cross reference to that page
+#
+def markup_abi_ref(docname, app, match):
+ stddom = app.env.domains['std']
+ #
+ # Go through the dance of getting an xref out of the std domain
+ #
+ kernel_abi = get_kernel_abi()
+
+ fname = match.group(1)
+ target = kernel_abi.xref(fname)
+
+ # Kernel ABI doesn't describe such file or symbol
+ if not target:
+ return nodes.Text(match.group(0))
+
+ pxref = addnodes.pending_xref('', refdomain = 'std', reftype = 'ref',
+ reftarget = target, modname = None,
+ classname = None, refexplicit = False)
+
+ #
+ # XXX The Latex builder will throw NoUri exceptions here,
+ # work around that by ignoring them.
+ #
+ try:
+ xref = stddom.resolve_xref(app.env, docname, app.builder, 'ref',
+ target, pxref, None)
+ except NoUri:
+ xref = None
+ #
+ # Return the xref if we got it; otherwise just return the plain text.
+ #
+ if xref:
+ return xref
+ else:
+ return nodes.Text(match.group(0))
+
def get_c_namespace(app, docname):
source = app.env.doc2path(docname)
with open(source) as f: