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# See LICENSE file for copyright and license details.
libsyscalls_get_syscall_errors.o: generated/linux-errors.h linux/errors.c
libsyscalls_get_syscall_errors.lo: generated/linux-errors.h linux/errors.c
generated/linux-errors.tbl: $(LINUX_SOURCE) linux/errors.mk
mkdir -p -- generated
set -e; ( \
get_gcc_or_clang () { \
( \
( \
IFS=:; \
for dir in $$PATH; do \
if test ! -d "$$dir"; then continue; fi; \
for file in "$$dir"/*; do \
if test ! -x "$$file"; then continue; fi; \
printf '%s\n' "$$file"; \
done \
done \
) | grep '/\(gcc\|clang\)\(-[0-9.]\{1,\}\)\{0,1\}$$'; \
printf '%s\n' gcc; \
) | sed 1q; \
}; \
extract="$$(get_gcc_or_clang) -E -dM"; \
toolsdir="linux-src/linux-$(LINUX_VERSION)/tools"; \
process_arch() \
{ \
($$extract "-I$$toolsdir/include/uapi" "$$2" && \
cat -- "linux-src/linux-$(LINUX_VERSION)/include/linux/errno.h") \
| sed -n 's/^$(s)*$(h)$(s)*define$(s)\{1,\}\(E[^[:space:]]\{1,\}\)$(s)\{1,\}\([0-9]\{1,\}\)$(s)*\(\/.*\)\{0,1\}$$/'"$$1"' \2 \1/p' \
| sort -k 2 -nu; \
}; \
for arch in $$(printf '%s\n' "$$toolsdir/arch"/*/ | sed 's:^.*/\([^/]*\)/$$:\1:'); do \
if test -f "$$toolsdir/arch/$$arch/include/uapi/asm/errno.h"; then \
process_arch "$$arch" "$$toolsdir/arch/$$arch/include/uapi/asm/errno.h"; \
fi; \
done; \
process_arch generic "$$toolsdir/include/uapi/asm-generic/errno.h"; \
) > $@
generated/linux-errors.h: generated/linux-errors.tbl linux/errors.mk
set -e; \
for arch in $$(cut -d ' ' -f 1 < generated/linux-errors.tbl | uniq); do \
ARCH="$$(printf '%s\n' "$$arch" | tr '[a-z]' '[A-Z]')"; \
printf '#define LIST_LINUX_ERRORS_FOR_%s(X, D)\\\n' "$$ARCH"; \
sed -n 's/^'"$$arch"' \([0-9]\{1,\}\) \(.*\)$$/\tX(\1, "\2") D\\/p' \
< generated/linux-errors.tbl \
| sed '$$s/ D\\//'; \
printf 'static struct libsyscalls_named_number linux_errors_for_%s[] = {\n' "$$arch"; \
printf '#define X(NR, NAME) {.number.s = NR, .name = NAME}\n'; \
printf '\tLIST_LINUX_ERRORS_FOR_%s(X, COMMA)\n' "$$ARCH"; \
printf '#undef X\n'; \
printf '};\n'; \
done > $@
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