From 26c9d03dd4a7356ed697bec98fe8108a5eebd562 Mon Sep 17 00:00:00 2001 From: Frediano Ziglio Date: Thu, 14 Feb 2013 12:37:14 +0000 Subject: gcov: Adding support for coverage information This patch introduce coverage support to Xen. Currently it allows to compile Xen with coverage support but there is no way to extract them. The declarations came from Linux source files (as you can see from file headers). The idea is to have some operations mainly - get coverage information size - read coverage information - reset coverage counters Linux use a file system to export these information. The information will be a blob to handle with some tools (as usually tools require a bunch of files but Xen does not handle files at all). I'll pack them to make things simpler as possible. These information cannot be put in a specific section (allowing a safe mapping) as gcc use .rodata, .data, .text and .ctors sections. I added code to handle constructors used in this case to initialize a linked list of files. I excluded %.init.o files as they are used before Xen start and should not have section like .text or .data. I used a "coverage" configuration option to mimic the "debug" one. Signed-off-by: Frediano Ziglio --- .hgignore | 2 ++ 1 file changed, 2 insertions(+) (limited to '.hgignore') diff --git a/.hgignore b/.hgignore index 74fd424921..a4466d2eaf 100644 --- a/.hgignore +++ b/.hgignore @@ -17,6 +17,8 @@ .*\.rej$ .*\.spot$ .*\.spit$ +.*\.gcno$ +.*\.gcda$ .*/a\.out$ .*/Modules\.symvers$ .*/cscope\..*$ -- cgit v1.2.3