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# See LICENSE file for copyright and license details.
libsyscalls_get_signals.o: generated/linux-signals.h linux/signals.c
libsyscalls_get_signals.lo: generated/linux-signals.h linux/signals.c
generated/linux-signals.tbl: $(LINUX_SOURCE) linux/signals.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\}$$'; \
printf '%s\n' gcc; \
) | sed 1q; \
}; \
if test -n "$(CC_DEF_EXTRACT)"; then \
c="$(CC_DEF_EXTRACT)"; \
else \
c="$(CC)"; \
fi; \
c="$$($$c --version 2>&1 | sed 1q | sed 's/^.*(\(.*\)).*$$/\1/' | tr '[A-Z]' '[a-z]' | cut -d ' ' -f 1)"; \
if test ! "$$c" = gcc && test ! "$$c" = clang; then \
c="$$(get_gcc_or_clang)"; \
fi; \
extract="$$c -E -dM -D__KERNEL__"; \
srcdir="linux-src/linux-$(LINUX_VERSION)"; \
mkdir -p -- "$$srcdir/tools/include/generated/"; \
touch -- "$$srcdir/tools/include/generated/bounds.h"; \
touch -- "$$srcdir/tools/include/generated/timeconst.h"; \
process_arch () \
{ \
set -e; \
signals="$$( \
$$extract "-I$$srcdir/tools/include" $$fixes "$$2" \
| sed -n 's/^$(s)*$(h)$(s)*define$(s)\{1,\}\(SIG[^[:space:]]\{1,\}\)$(s)\{1,\}\([0-9]\{1,\}\)$(s)*\(\/.*\)\{0,1\}$$/'"$$1"' \2 \1/p' \
| grep -v ' SIG_' \
| grep -v ' SIGSTKSZ' \
| sort -k 2 -nu; \
)"; \
if test "$$1" = arm; then \
signals="$$(printf "%s\n" "$$signals" | sed 's/\(^\|[^A-Z0-9a-z_]\)SIGSWI\([^A-Z0-9a-z_]\|$$\)/\1SIGRTMIN\2/')"; \
fi; \
printf "%s\n" "$$signals"; \
sigrtmin="$$(printf "%s\n" "$$signals" | sed -n 's/^.* \([0-9]\{1,\}\) SIGRTMIN$$/\1/p')"; \
maxnamed="$$(printf "%s\n" "$$signals" | sed -n '$$s/^.* \([0-9]\{1,\}\) .*$$/\1/p')"; \
test "$$sigrtmin" = "$$maxnamed"; \
maxsig=_NSIG; \
depth=0; \
while test -n "$$maxsig" && test -n "$$(printf '%s\n' "$$maxsig" | tr -d '[0-9]')" ; do \
printf '%s: looking for %s\n' "$$1" "$$maxsig" >&2; \
def="$$maxsig"; \
maxsig="$$($$extract "-I$$srcdir/tools/include" $$fixes "$$2" \
| sed -n 's/^$(s)*$(h)$(s)*define$(s)\{1,\}'"$$def"'$(s)\{1,\}\([A-Z0-9_]\{1,\}\)$(s)*\(\/.*\)\{0,1\}$$/\1/p')"; \
if test -z "$$maxsig"; then \
maxsig="$$($$extract "-I$$srcdir/tools/include" \
"-I$$srcdir/arch/$$1/include" \
"-I$$srcdir/include" \
"-I$$srcdir" \
$$fixes \
"$$(printf '%s\n' "$$2" | sed 's:/uapi/:/:')" \
| sed -n 's/^$(s)*$(h)$(s)*define$(s)\{1,\}'"$$def"'$(s)\{1,\}\([A-Z0-9_]\{1,\}\)$(s)*\(\/.*\)\{0,1\}$$/\1/p')"; \
fi; \
printf '%s: found %s\n' "$$1" "$$maxsig" >&2; \
: $$(( depth++ )); \
test $$(( depth )) -lt 1000; \
done; \
test -n "$$maxsig"; \
i=1; \
while (( sigrtmin + i <= maxsig )); do \
printf '%s %d SIGRTMIN+%d\n' "$$1" $$(( sigrtmin + i )) $$i; \
: $$(( i++ )); \
done; \
}; \
getsigs () { \
process_arch "$$@" | sed 's/\(^\|[^A-Z0-9a-z_]\)\(SIGRTMIN\)\([^A-Z0-9a-z_]\|$$\)/\1_\2\3/'; \
}; \
for arch in $$(printf '%s\n' "$$srcdir/arch"/*/ | sed 's:^.*/\([^/]*\)/$$:\1:'); do \
if test ! "$$arch" = s390 && test -f "$$srcdir/arch/$$arch/include/uapi/asm/signal.h"; then \
getsigs "$$arch" "$$srcdir/arch/$$arch/include/uapi/asm/signal.h"; \
fi; \
done; \
getsigs generic "$$srcdir/include/uapi/asm-generic/signal.h"; \
) > $@
@printf '\033[1;32m%s\033[m\n' \
'Compiler warnings above are not of interest, they were generated during' \
'extraction of the Linux source code and are not part of this library'
@grep '^generic.*SIGRTMIN+.*' >/dev/null 2>/dev/null < $@
grep '^generic ' < $@ | cut -d ' ' -f 2 > generated/linux-signals.generic.tbl
@# For most architectures the signal numbers are the same,
@# yet they have their own signal.h listing them, so to remove
@# duplication in the library, we removing duplicates after
@# validating that they have not diverged
grep '^arm ' < $@ | cut -d ' ' -f 2 | diff -u generated/linux-signals.generic.tbl -
sed '/^arm /d' < $@ > $@.tmp && mv -- $@.tmp $@
grep '^arm64 ' < $@ | cut -d ' ' -f 2 | diff -u generated/linux-signals.generic.tbl -
sed '/^arm64 /d' < $@ > $@.tmp && mv -- $@.tmp $@
grep '^hexagon ' < $@ | cut -d ' ' -f 2 | diff -u generated/linux-signals.generic.tbl -
sed '/^hexagon /d' < $@ > $@.tmp && mv -- $@.tmp $@
grep '^loongarch ' < $@ | cut -d ' ' -f 2 | diff -u generated/linux-signals.generic.tbl -
sed '/^loongarch /d' < $@ > $@.tmp && mv -- $@.tmp $@
grep '^arc ' < $@ | cut -d ' ' -f 2 | diff -u generated/linux-signals.generic.tbl -
sed '/^arc /d' < $@ > $@.tmp && mv -- $@.tmp $@
grep '^nios2 ' < $@ | cut -d ' ' -f 2 | diff -u generated/linux-signals.generic.tbl -
sed '/^nios2 /d' < $@ > $@.tmp && mv -- $@.tmp $@
grep '^ia64 ' < $@ | cut -d ' ' -f 2 | diff -u generated/linux-signals.generic.tbl -
sed '/^ia64 /d' < $@ > $@.tmp && mv -- $@.tmp $@
grep '^m68k ' < $@ | cut -d ' ' -f 2 | diff -u generated/linux-signals.generic.tbl -
sed '/^m68k /d' < $@ > $@.tmp && mv -- $@.tmp $@
grep '^powerpc ' < $@ | cut -d ' ' -f 2 | diff -u generated/linux-signals.generic.tbl -
sed '/^powerpc /d' < $@ > $@.tmp && mv -- $@.tmp $@
grep '^sh ' < $@ | cut -d ' ' -f 2 | diff -u generated/linux-signals.generic.tbl -
sed '/^sh /d' < $@ > $@.tmp && mv -- $@.tmp $@
grep '^x86 ' < $@ | cut -d ' ' -f 2 | diff -u generated/linux-signals.generic.tbl -
sed '/^x86 /d' < $@ > $@.tmp && mv -- $@.tmp $@
grep '^xtensa ' < $@ | cut -d ' ' -f 2 | diff -u generated/linux-signals.generic.tbl -
sed '/^xtensa /d' < $@ > $@.tmp && mv -- $@.tmp $@
rm -f -- generated/linux-signals.*.tbl
generated/linux-signals.h: generated/linux-signals.tbl linux/signals.mk
set -e; \
for arch in $$(cut -d ' ' -f 1 < generated/linux-signals.tbl | uniq); do \
ARCH="$$(printf '%s\n' "$$arch" | tr '[a-z]' '[A-Z]')"; \
printf '#define LIST_LINUX_SIGNALS_FOR_%s(X, D)\\\n' "$$ARCH"; \
sed -n 's/^'"$$arch"' \([0-9]\{1,\}\) \(.*\)$$/\tX(\1, "\2") D\\/p' \
< generated/linux-signals.tbl \
| sed '$$s/ D\\//'; \
printf 'static struct libsyscalls_named_number linux_signals_for_%s[] = {\n' "$$arch"; \
printf '#define X(NR, NAME) {.number.s = NR, .name = NAME}\n'; \
printf '\tLIST_LINUX_SIGNALS_FOR_%s(X, COMMA)\n' "$$ARCH"; \
printf '#undef X\n'; \
printf '};\n'; \
done > $@
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