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7842749c35
This adds a bunch of preprocessor magic to extend the capabilities of CONFIG_IS_ENABLED. The existing semantics of CONFIG_IS_ENABLED(FOO) expanding to a 1 or 0 (depending on build context and the defined-ness or not of the appropriate CONFIG_FOO/CONFIG_SPL_FOO/CONFIG_TPL_FOO) are of course preserved. With this, one is also allowed a two-argument form CONFIG_IS_ENABLED(FOO, (something)) which expands to something precisely when CONFIG_IS_ENABLED(FOO) would expand to 1, and expands to nothing otherwise. It is, in other words, completely equivalent to the three lines #if CONFIG_IS_ENABLED(FOO) something #endif The second argument must be parenthesized in order to allow any tokens, including a trailing comma, to appear - one use case for this is precisely to make it a bit more ergonomic to build an array and only include certain items depending on .config. That should increase both readability and not least "git grep"ability. A third variant is also introduced, CONFIG_IS_ENABLED(FOO, (xxx), (yyy)) which corresponds to #if CONFIG_IS_ENABLED(FOO) xxx #else yyy #endif Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> |
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| .. | ||
| byteorder | ||
| clk | ||
| mtd | ||
| soc/ti | ||
| unaligned | ||
| usb | ||
| apm_bios.h | ||
| arm-smccc.h | ||
| asn1.h | ||
| asn1_ber_bytecode.h | ||
| asn1_decoder.h | ||
| bch.h | ||
| bitfield.h | ||
| bitmap.h | ||
| bitops.h | ||
| bitrev.h | ||
| bug.h | ||
| build_bug.h | ||
| clk-provider.h | ||
| compat.h | ||
| compiler-clang.h | ||
| compiler-gcc.h | ||
| compiler-intel.h | ||
| compiler.h | ||
| compiler_attributes.h | ||
| compiler_types.h | ||
| completion.h | ||
| const.h | ||
| crc7.h | ||
| crc32.h | ||
| ctype.h | ||
| delay.h | ||
| dma-direction.h | ||
| dma-mapping.h | ||
| drm_dp_helper.h | ||
| edd.h | ||
| err.h | ||
| errno.h | ||
| ethtool.h | ||
| fb.h | ||
| if_ether.h | ||
| immap_qe.h | ||
| input.h | ||
| io.h | ||
| ioctl.h | ||
| iopoll.h | ||
| ioport.h | ||
| kbuild.h | ||
| kconfig.h | ||
| kernel.h | ||
| libfdt.h | ||
| libfdt_env.h | ||
| linkage.h | ||
| linux_string.h | ||
| list.h | ||
| list_sort.h | ||
| log2.h | ||
| lzo.h | ||
| math64.h | ||
| mbus.h | ||
| mc146818rtc.h | ||
| mdio.h | ||
| mii.h | ||
| netdevice.h | ||
| oid_registry.h | ||
| poison.h | ||
| posix_types.h | ||
| printk.h | ||
| psci.h | ||
| rbtree.h | ||
| rbtree_augmented.h | ||
| screen_info.h | ||
| serial_reg.h | ||
| sizes.h | ||
| stat.h | ||
| stddef.h | ||
| string.h | ||
| stringify.h | ||
| time.h | ||
| typecheck.h | ||
| types.h | ||
| xxhash.h | ||
| zstd.h | ||