Re: [U-Boot] [PATCH v3] config.mk: use memoization in cc-option macro to speed up compilation

Dear Daniel Schwierzeck,

In message 1320679603-24847-1-git-send-email-daniel.schwierzeck@googlemail.com you wrote:

Apply memoization to cc-option macro by caching the results of the gcc calls. This macro is called very often so using cached results leads to faster compilation times.

The old behaviour can be restored by defining the config option CONFIG_CC_OPT_CACHE_DISABLE=y.

Signed-off-by: Daniel Schwierzeck daniel.schwierzeck@googlemail.com

Changes for v3:

• reworked handling of non-working gcc options
• add config option CONFIG_CC_OPT_CACHE_DISABLE

Changes for v2:

• move cache file to $(obj)/include/generated
• reworked completely
• cache also non-working gcc options
• remove CACHE_CC_OPTIONS config switch and enable this optimization by default

config.mk | 20 ++++++++++++++++++-- 1 files changed, 18 insertions(+), 2 deletions(-)

Applied, thanks.

Best regards,

Wolfgang Denk