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Diffstat (limited to 'Config.in')
| -rw-r--r-- | Config.in | 27 |
1 files changed, 27 insertions, 0 deletions
@@ -286,6 +286,33 @@ config BR2_CCACHE_INITIAL_SETUP These initial settings are applied after ccache has been compiled. +config BR2_CCACHE_USE_BASEDIR + bool "Use relative paths" + default y + help + Allow ccache to convert absolute paths within the output + directory into relative paths. + + During the build, many -I include directives are given with + an absolute path. These absolute paths end up in the hashes + that are computed by ccache. Therefore, when you build from a + different directory, the hash will be different and the + cached object will not be used. + + To improve cache performance, set this option to y. This + allows ccache to rewrite absolute paths within the output + directory into relative paths. Note that only paths within + the output directory will be rewritten; therefore, if you + change BR2_HOST_DIR to point outside the output directory and + subsequently move it to a different location, this will lead + to cache misses. + + This option has as a result that the debug information in the + object files also has only relative paths. Therefore, make + sure you cd to the build directory before starting gdb. See + the section "COMPILING IN DIFFERENT DIRECTORIES" in the + ccache manual for more information. + endif config BR2_DEPRECATED |