toolchain/gcc: add config symbol to determine how to apply path remapping

Added boolean symbol for GCC 8 and higher, when we add newer GCC, we don't have
to modify rules.mk to keep things consistant.

Fixes: da9d760 ("rules.mk: replace iremap when using GCC 8")

Signed-off-by: Syrone Wong <wong.syrone@gmail.com>
This commit is contained in:
Syrone Wong 2018-07-26 22:38:57 +08:00 committed by Felix Fietkau
parent fc9cbf3bc0
commit 713cee6463
2 changed files with 8 additions and 3 deletions

View file

@ -140,10 +140,10 @@ else
endif
ifeq ($(or $(CONFIG_EXTERNAL_TOOLCHAIN),$(CONFIG_GCC_VERSION_4_8),$(CONFIG_TARGET_uml)),)
iremap = -iremap$(1):$(2)
# just overwrite iremap for GCC 8.1 and higher to keep backward compatibility
ifeq ($(CONFIG_GCC_VERSION_8),y)
ifeq ($(CONFIG_GCC_USE_EMBEDDED_PATH_REMAP),y)
iremap = -fmacro-prefix-map=$(1)=$(2)
else
iremap = -iremap$(1):$(2)
endif
endif

View file

@ -10,6 +10,11 @@ config GCC_VERSION_8
default y if GCC_USE_VERSION_8
bool
config GCC_USE_EMBEDDED_PATH_REMAP
default y if GCC_VERSION_8
default n
bool
config GCC_VERSION
string
default "5.5.0" if GCC_VERSION_5