mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-19 18:53:52 +08:00
59f53855ba
Run scripts/gcc-plugin.sh from Kconfig so that users can enable GCC_PLUGINS only when the compiler supports building plugins. Kconfig defines a new symbol, PLUGIN_HOSTCC. This will contain the compiler (g++ or gcc) used for building plugins, or empty if the plugin can not be supported at all. This allows us to remove all ugly testing in Makefile.gcc-plugins. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Kees Cook <keescook@chromium.org>
31 lines
871 B
Plaintext
31 lines
871 B
Plaintext
# Kconfig helper macros
|
|
|
|
# Convenient variables
|
|
comma := ,
|
|
quote := "
|
|
squote := '
|
|
empty :=
|
|
space := $(empty) $(empty)
|
|
dollar := $
|
|
right_paren := )
|
|
left_paren := (
|
|
|
|
# $(if-success,<command>,<then>,<else>)
|
|
# Return <then> if <command> exits with 0, <else> otherwise.
|
|
if-success = $(shell,{ $(1); } >/dev/null 2>&1 && echo "$(2)" || echo "$(3)")
|
|
|
|
# $(success,<command>)
|
|
# Return y if <command> exits with 0, n otherwise
|
|
success = $(if-success,$(1),y,n)
|
|
|
|
# $(cc-option,<flag>)
|
|
# Return y if the compiler supports <flag>, n otherwise
|
|
cc-option = $(success,$(CC) -Werror $(1) -E -x c /dev/null -o /dev/null)
|
|
|
|
# $(ld-option,<flag>)
|
|
# Return y if the linker supports <flag>, n otherwise
|
|
ld-option = $(success,$(LD) -v $(1))
|
|
|
|
# gcc version including patch level
|
|
gcc-version := $(shell,$(srctree)/scripts/gcc-version.sh -p $(CC) | sed 's/^0*//')
|