diff options
Diffstat (limited to 'scripts/Makefile.lib')
| -rw-r--r-- | scripts/Makefile.lib | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index a2d0e6d32659..434a0b8e3c97 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -129,6 +129,12 @@ _c_flags += $(if $(patsubst n%,, \ $(CFLAGS_KASAN), $(CFLAGS_KASAN_NOSANITIZE)) endif +ifeq ($(CONFIG_KCOV),y) +_c_flags += $(if $(patsubst n%,, \ + $(KCOV_INSTRUMENT_$(basetarget).o)$(KCOV_INSTRUMENT)y), \ + $(CFLAGS_KCOV)) +endif + # If building the kernel in a separate objtree expand all occurrences # of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/'). @@ -263,6 +269,11 @@ cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \ # DTC # --------------------------------------------------------------------------- +# Disable noisy checks by default +ifeq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),) +DTC_FLAGS += -Wno-unit_address_vs_reg +endif + # Generate an assembly file to wrap the output of the device tree compiler quiet_cmd_dt_S_dtb= DTB $@ cmd_dt_S_dtb= \ @@ -294,6 +305,12 @@ $(obj)/%.dtb: $(src)/%.dts FORCE dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp) +# cat +# --------------------------------------------------------------------------- +# Concatentate multiple files together +quiet_cmd_cat = CAT $@ +cmd_cat = (cat $(filter-out FORCE,$^) > $@) || (rm -f $@; false) + # Bzip2 # --------------------------------------------------------------------------- @@ -388,3 +405,34 @@ quiet_cmd_xzmisc = XZMISC $@ cmd_xzmisc = (cat $(filter-out FORCE,$^) | \ xz --check=crc32 --lzma2=dict=1MiB) > $@ || \ (rm -f $@ ; false) + +# ASM offsets +# --------------------------------------------------------------------------- + +# Default sed regexp - multiline due to syntax constraints +# +# Use [:space:] because LLVM's integrated assembler inserts <tab> around +# the .ascii directive whereas GCC keeps the <space> as-is. +define sed-offsets + 's:^[[:space:]]*\.ascii[[:space:]]*"\(.*\)".*:\1:; \ + /^->/{s:->#\(.*\):/* \1 */:; \ + s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ + s:->::; p;}' +endef + +# Use filechk to avoid rebuilds when a header changes, but the resulting file +# does not +define filechk_offsets + (set -e; \ + echo "#ifndef $2"; \ + echo "#define $2"; \ + echo "/*"; \ + echo " * DO NOT MODIFY."; \ + echo " *"; \ + echo " * This file was generated by Kbuild"; \ + echo " */"; \ + echo ""; \ + sed -ne $(sed-offsets); \ + echo ""; \ + echo "#endif" ) +endef |