$(_sc_search_regexp)
# To use this "command" macro, you must first define two shell variables:
-# h: the header, enclosed in <> or ""
+# h: the header name, with no enclosing <> or ""
# re: a regular expression that matches IFF something provided by $h is used.
define _sc_header_without_use
dummy=; : so we do not need a semicolon before each use; \
- h_esc=`echo "$$h"|sed 's/\./\\\\./g'`; \
+ h_esc=`echo '[<"]'"$$h"'[">]'|sed 's/\./\\\\./g'`; \
if $(VC_LIST_EXCEPT) | grep -l '\.c$$' > /dev/null; then \
files=$$(grep -l '^# *include '"$$h_esc" \
$$($(VC_LIST_EXCEPT) | grep '\.c$$')) && \
# Prohibit the inclusion of assert.h without an actual use of assert.
sc_prohibit_assert_without_use:
- @h='
<assert.h>' re='\<assert *\(' $(_sc_header_without_use)
+ @h='
assert.h' re='\<assert *\(' $(_sc_header_without_use)
# Prohibit the inclusion of close-stream.h without an actual use.
sc_prohibit_close_stream_without_use:
- @h='"close-stream.h"' re='\<close_stream *\(' $(_sc_header_without_use)
+ @h='close-stream.h' re='\<close_stream *\(' $(_sc_header_without_use)
# Prohibit the inclusion of getopt.h without an actual use.
sc_prohibit_getopt_without_use:
- @h='<getopt.h>' re='\<getopt(_long)? *\(' $(_sc_header_without_use)
+ @h='getopt.h' re='\<getopt(_long)? *\(' $(_sc_header_without_use)
# Don't include quotearg.h unless you use one of its functions.
sc_prohibit_quotearg_without_use:
- @h='"quotearg.h"' re='\<quotearg(_[^ ]+)? *\(' $(_sc_header_without_use)
+ @h='quotearg.h' re='\<quotearg(_[^ ]+)? *\(' $(_sc_header_without_use)
# Don't include quote.h unless you use one of its functions.
sc_prohibit_quote_without_use:
- @h='"quote.h"' re='\<quote(_n)? *\(' $(_sc_header_without_use)
+ @h='quote.h' re='\<quote(_n)? *\(' $(_sc_header_without_use)
# Don't include this header unless you use one of its functions.
sc_prohibit_long_options_without_use:
- @h='
"long-options.h"' re='\<parse_long_options *\(' \
+ @h='
long-options.h' re='\<parse_long_options *\(' \
$(_sc_header_without_use)
# Don't include this header unless you use one of its functions.
sc_prohibit_inttostr_without_use:
- @h='"inttostr.h"' re='\<(off|[iu]max|uint)tostr *\(' \
+ @h='inttostr.h' re='\<(off|[iu]max|uint)tostr *\(' \
$(_sc_header_without_use)
# Don't include this header unless you use one of its functions.
sc_prohibit_ignore_value_without_use:
- @h='"ignore-value.h"' re='\<ignore_(value|ptr) *\(' \
+ @h='ignore-value.h' re='\<ignore_(value|ptr) *\(' \
$(_sc_header_without_use)
# Don't include this header unless you use one of its functions.
sc_prohibit_error_without_use:
- @h='"error.h"' \
+ @h='error.h' \
re='\<error(_at_line|_print_progname|_one_per_line|_message_count)? *\('\
$(_sc_header_without_use)
_xa1 = x(((2n?)?re|char|n(re|m)|[cmz])alloc|alloc_(oversized|die)|(mem|str)dup)
_xa2 = X([CZ]|N?M)ALLOC
sc_prohibit_xalloc_without_use:
- @h='"xalloc.h"' \
+ @h='xalloc.h' \
re='\<($(_xa1)|$(_xa2)) *\('\
$(_sc_header_without_use)
_hash_fn = \<($(_hash_re)) *\(
_hash_struct = (struct )?\<[Hh]ash_(table|tuning)\>
sc_prohibit_hash_without_use:
- @h='"hash.h"' \
+ @h='hash.h' \
re='$(_hash_fn)|$(_hash_struct)'\
$(_sc_header_without_use)
+sc_prohibit_cloexec_without_use:
+ @h='cloexec.h' re='\<(set_cloexec_flag|dup_cloexec) *\(' \
+ $(_sc_header_without_use)
+
+sc_prohibit_posixver_without_use:
+ @h='posixver.h' re='\<posix2_version *\(' $(_sc_header_without_use)
+
+sc_prohibit_same_without_use:
+ @h='same.h' re='\<same_name *\(' $(_sc_header_without_use)
+
sc_prohibit_hash_pjw_without_use:
- @h='"hash-pjw.h"' \
+ @h='hash-pjw.h' \
re='\<hash_pjw *\(' \
$(_sc_header_without_use)
sc_prohibit_safe_read_without_use:
- @h='"safe-read.h"' re='(\<SAFE_READ_ERROR\>|\<safe_read *\()' \
+ @h='safe-read.h' re='(\<SAFE_READ_ERROR\>|\<safe_read *\()' \
$(_sc_header_without_use)
sc_prohibit_argmatch_without_use:
- @h='"argmatch.h"' \
- re='(\<(ARRAY_CARDINALITY|X?ARGMATCH(|_TO_ARGUMENT|_VERIFY))\>|\<argmatch(_exit_fn|_(in)?valid) *\()' \
+ @h='argmatch.h' \
+ re='(\<(ARRAY_CARDINALITY|X?ARGMATCH(|_TO_ARGUMENT|_VERIFY))\>|\<(invalid_arg|argmatch(_exit_fn|_(in)?valid)?) *\()' \
$(_sc_header_without_use)
sc_prohibit_canonicalize_without_use:
- @h='"canonicalize.h"' \
+ @h='canonicalize.h' \
re='CAN_(EXISTING|ALL_BUT_LAST|MISSING)|canonicalize_(mode_t|filename_mode)' \
$(_sc_header_without_use)
sc_prohibit_root_dev_ino_without_use:
- @h='"root-dev-ino.h"' \
+ @h='root-dev-ino.h' \
re='(\<ROOT_DEV_INO_(CHECK|WARN)\>|\<get_root_dev_ino *\()' \
$(_sc_header_without_use)
sc_prohibit_openat_without_use:
- @h='"openat.h"' \
+ @h='openat.h' \
re='\<(openat_(permissive|needs_fchdir|(save|restore)_fail)|l?(stat|ch(own|mod))at|(euid)?accessat)\>' \
$(_sc_header_without_use)
ctype_re = isalnum|isalpha|isascii|isblank|iscntrl|isdigit|isgraph|islower\
|isprint|ispunct|isspace|isupper|isxdigit|tolower|toupper
sc_prohibit_c_ctype_without_use:
- @h='[<"]c-ctype.h[">]' re='\<c_($(ctype_re)) *\(' \
+ @h='c-ctype.h' re='\<c_($(ctype_re)) *\(' \
$(_sc_header_without_use)
_empty =
# Prohibit the inclusion of signal.h without an actual use.
sc_prohibit_signal_without_use:
- @h='<signal.h>' \
+ @h='signal.h' \
re='\<($(_sig_function_re)) *\(|\<($(_sig_syms_re))\>' \
$(_sc_header_without_use)
+# Don't include stdio--.h unless you use one of its functions.
+sc_prohibit_stdio--_without_use:
+ @h='stdio--.h' re='\<((f(re)?|p)open|tmpfile) *\(' \
+ $(_sc_header_without_use)
+
+# Don't include stdio-safer.h unless you use one of its functions.
+sc_prohibit_stdio-safer_without_use:
+ @h='stdio-safer.h' re='\<((f(re)?|p)open|tmpfile)_safer *\(' \
+ $(_sc_header_without_use)
+
# Prohibit the inclusion of strings.h without a sensible use.
# Using the likes of bcmp, bcopy, bzero, index or rindex is not sensible.
sc_prohibit_strings_without_use:
- @h='<strings.h>' \
+ @h='strings.h' \
re='\<(strn?casecmp|ffs(ll)?)\>' \
$(_sc_header_without_use)
# Get the list of symbol names with this:
-# perl -lne '/^# *define (\w+)\(/ and print $1' lib/intprops.h|grep -v '^s'|fmt
+# perl -lne '/^# *define ([A-Z]\w+)\(/ and print $1' lib/intprops.h|fmt
_intprops_names = \
TYPE_IS_INTEGER TYPE_TWOS_COMPLEMENT TYPE_ONES_COMPLEMENT \
TYPE_SIGNED_MAGNITUDE TYPE_SIGNED TYPE_MINIMUM TYPE_MAXIMUM \
- INT_STRLEN_BOUND INT_BUFSIZE_BOUND
+ INT_BITS_STRLEN_BOUND INT_STRLEN_BOUND INT_BUFSIZE_BOUND \
+ INT_ADD_RANGE_OVERFLOW INT_SUBTRACT_RANGE_OVERFLOW \
+ INT_NEGATE_RANGE_OVERFLOW INT_MULTIPLY_RANGE_OVERFLOW \
+ INT_DIVIDE_RANGE_OVERFLOW INT_REMAINDER_RANGE_OVERFLOW \
+ INT_LEFT_SHIFT_RANGE_OVERFLOW INT_ADD_OVERFLOW INT_SUBTRACT_OVERFLOW \
+ INT_NEGATE_OVERFLOW INT_MULTIPLY_OVERFLOW INT_DIVIDE_OVERFLOW \
+ INT_REMAINDER_OVERFLOW INT_LEFT_SHIFT_OVERFLOW
_intprops_syms_re = $(subst $(_sp),|,$(strip $(_intprops_names)))
# Prohibit the inclusion of intprops.h without an actual use.
sc_prohibit_intprops_without_use:
- @h='"intprops.h"' \
+ @h='intprops.h' \
re='\<($(_intprops_syms_re)) *\(' \
$(_sc_header_without_use)
_stddef_syms_re = NULL|offsetof|ptrdiff_t|size_t|wchar_t
# Prohibit the inclusion of stddef.h without an actual use.
sc_prohibit_stddef_without_use:
- @h='<stddef.h>' \
+ @h='stddef.h' \
re='\<($(_stddef_syms_re)) *\(' \
$(_sc_header_without_use)
+# Prohibit the inclusion of verify.h without an actual use.
+sc_prohibit_verify_without_use:
+ @h='verify.h' \
+ re='\<(verify(true|expr)?|static_assert) *\(' \
+ $(_sc_header_without_use)
+
+# Don't include xfreopen.h unless you use one of its functions.
+sc_prohibit_xfreopen_without_use:
+ @h='xfreopen.h' re='\<xfreopen *\(' $(_sc_header_without_use)
+
sc_obsolete_symbols:
@prohibit='\<(HAVE''_FCNTL_H|O''_NDELAY)\>' \
halt='do not use HAVE''_FCNTL_H or O'_NDELAY \
exit 1; } || :; \
fi
-sc_the_the:
- @prohibit='\<the ''the\>' \
- ignore_case=1 \
- halt='found use of "the ''the";' \
- $(_sc_search_regexp)
-
sc_trailing_blank:
@prohibit='[ ]$$' \
halt='found trailing blank(s)' \
halt='help2man requires at least two spaces between an option and its description'\
$(_sc_search_regexp)
+# A regexp matching function names like "error" that may be used
+# to emit translatable messages.
+_gl_translatable_diag_func_re ?= error
+
# Look for diagnostics that aren't marked for translation.
# This won't find any for which error's format string is on a separate line.
sc_unmarked_diagnostics:
@grep -nE \
- '\<error *\([^"]*"[^"]*[a-z]{3}' $$($(VC_LIST_EXCEPT)) \
+ '\<$(_gl_translatable_diag_func_re) *\([^"]*"[^"]*[a-z]{3}' \
+ $$($(VC_LIST_EXCEPT)) \
| grep -Ev '(_|ngettext ?)\(' && \
{ echo '$(ME): found unmarked diagnostic(s)' 1>&2; \
exit 1; } || :
gl_extract_significant_defines_ = \
/^\# *define ([^_ (][^ (]*)(\s*\(|\s+\w+)/\
&& $$2 !~ /(?:rpl_|_used_without_)/\
- && $$1 !~ /^(?:NSIG|ATTRIBUTE_NORETURN)$$/\
+ && $$1 !~ /^(?:NSIG)$$/\
+ && $$1 !~ /^(?:SA_RESETHAND|SA_RESTART)$$/\
and print $$1
# Create a list of regular expressions matching the names
perl -lne '$(gl_extract_significant_defines_)' $$f; \
done; \
) | sort -u \
- | grep -Ev '^ATTRIBUTE_NORETURN' \
| sed 's/^/^ *# *(define|undef) */;s/$$/\\>/'
endef
halt='do not define S_IS* macros; include <sys/stat.h>' \
$(_sc_search_regexp)
-prohibit_doubled_word_RE_ ?= \
- /\b(then?|[iao]n|i[fst]|but|f?or|at|and|[dt]o)\s+\1\b/gims
-prohibit_doubled_word_ = \
- -e 'while ($(prohibit_doubled_word_RE_))' \
+# Perl block to convert a match to FILE_NAME:LINENO:TEST,
+# that is shared by two definitions below.
+perl_filename_lineno_text_ = \
-e ' {' \
-e ' $$n = ($$` =~ tr/\n/\n/ + 1);' \
-e ' ($$v = $$&) =~ s/\n/\\n/g;' \
-e ' print "$$ARGV:$$n:$$v\n";' \
-e ' }'
+prohibit_doubled_word_RE_ ?= \
+ /\b(then?|[iao]n|i[fst]|but|f?or|at|and|[dt]o)\s+\1\b/gims
+prohibit_doubled_word_ = \
+ -e 'while ($(prohibit_doubled_word_RE_))' \
+ $(perl_filename_lineno_text_)
+
# Define this to a regular expression that matches
# any filename:dd:match lines you want to ignore.
# The default is to ignore no matches.
| grep -vE '$(ignore_doubled_word_match_RE_)' \
| grep . && { echo '$(ME): doubled words' 1>&2; exit 1; } || :
-sc_prohibit_can_not:
- @prohibit='\<can[ ]not\>' \
- halt='use "cannot", not "can'' not"' \
- $(_sc_search_regexp)
+# A regular expression matching undesirable combinations of words like
+# "can not"; this matches them even when the two words appear on different
+# lines, but not when there is an intervening delimiter like "#" or "*".
+prohibit_undesirable_word_seq_RE_ ?= \
+ /\bcan\s+not\b/gims
+prohibit_undesirable_word_seq_ = \
+ -e 'while ($(prohibit_undesirable_word_seq_RE_))' \
+ $(perl_filename_lineno_text_)
+# Define this to a regular expression that matches
+# any filename:dd:match lines you want to ignore.
+# The default is to ignore no matches.
+ignore_undesirable_word_sequence_RE_ ?= ^$$
+
+sc_prohibit_undesirable_word_seq:
+ @perl -n -0777 $(prohibit_undesirable_word_seq_) \
+ $$($(VC_LIST_EXCEPT)) \
+ | grep -vE '$(ignore_undesirable_word_sequence_RE_)' | grep . \
+ && { echo '$(ME): undesirable word sequence' >&2; exit 1; } || :
_ptm1 = use "test C1 && test C2", not "test C1 -''a C2"
_ptm2 = use "test C1 || test C2", not "test C1 -''o C2"
# the other init.sh-using tests also get it right.
_hv_file ?= $(srcdir)/tests/help-version
_hv_regex_weak ?= ^ *\. .*/init\.sh"
+# Fix syntax-highlighters "
_hv_regex_strong ?= ^ *\. "\$${srcdir=\.}/init\.sh"
sc_cross_check_PATH_usage_in_tests:
@if test -f $(_hv_file); then \
halt='Use 0 or 1 for macro values' \
$(_sc_search_regexp)
+# Even if you use pathmax.h to guarantee that PATH_MAX is defined, it might
+# not be constant, or might overflow a stack. In general, use PATH_MAX as
+# a limit, not an array or alloca size.
+sc_prohibit_path_max_allocation:
+ @prohibit='(\balloca *\([^)]*|\[[^]]*)PATH_MAX' \
+ halt='Avoid stack allocations of size PATH_MAX' \
+ $(_sc_search_regexp)
+
sc_vulnerable_makefile_CVE-2009-4029:
@prohibit='perm -777 -exec chmod a\+rwx|chmod 777 \$$\(distdir\)' \
in_files=$$(find $(srcdir) -name Makefile.in) \
$$(export VC_LIST_EXCEPT_DEFAULT=COPYING && $(VC_LIST_EXCEPT)) \
| $(update-copyright-env) xargs $(build_aux)/$@
-# NOTE: This test is silently skipped if $(_gl_TS_dir)/Makefile.am
-# does not mention noinst_HEADERS.
-# NOTE: to override these _gl_TS_* default values, you must
+# This tight_scope test is skipped with a warning if $(_gl_TS_headers) is not
+# overridden and $(_gl_TS_dir)/Makefile.am does not mention noinst_HEADERS.
+
+# NOTE: to override any _gl_TS_* default value, you must
# define the variable(s) using "export" in cfg.mk.
_gl_TS_dir ?= src
+
ALL_RECURSIVE_TARGETS += sc_tight_scope
sc_tight_scope: tight-scope.mk
- @grep noinst_HEADERS $(_gl_TS_dir)/Makefile.am > /dev/null 2>&1 \
- && $(MAKE) -s -C $(_gl_TS_dir) -f Makefile \
- -f '$(abs_srcdir)/tight-scope.mk' _gl_tight_scope
- || :
+ @if ! grep '^ *export _gl_TS_headers *=' $(srcdir)/cfg.mk \
+ > /dev/null \
+ && ! grep -w noinst_HEADERS $(srcdir)/$(_gl_TS_dir)/Makefile.am \
+ > /dev/null 2>&1; then \
+ echo '$(ME): skipping $@'; \
+ else \
+ $(MAKE) -s -C $(_gl_TS_dir) \
+ -f Makefile \
+ -f $(abs_top_srcdir)/cfg.mk \
+ -f $(abs_top_builddir)/$< \
+ _gl_tight_scope \
+ || fail=1; \
+ fi
@rm -f $<
tight-scope.mk: $(ME)
ifeq (a,b)
# TS-start
+
# Most functions should have static scope.
# Any that don't must be marked with `extern', but `main'
# and `usage' are exceptions: they're always extern, but
-# do not need to be marked.
+# do not need to be marked. Symbols matching `__.*' are
+# reserved by the compiler, so are automatically excluded below.
_gl_TS_unmarked_extern_functions ?= main usage
-_gl_TS_function_regex ?= \
- ^(?:extern|XTERN) +(?:void|(?:struct |const |enum )?\S+) +\**(\S+) +\(
+_gl_TS_function_match ?= /^(?:$(_gl_TS_extern)) +.*?(\S+) *\(/
+
+# If your project uses a macro like "XTERN", then put
+# the following in cfg.mk to override this default:
+# export _gl_TS_extern = extern|XTERN
+_gl_TS_extern ?= extern
# The second nm|grep checks for file-scope variables with `extern' scope.
# Without gnulib's progname module, you might put program_name here.
+# Symbols matching `__.*' are reserved by the compiler,
+# so are automatically excluded below.
_gl_TS_unmarked_extern_vars ?=
-_gl_TS_var_regex ?= ^(?:extern|XTERN) .*?\**(\w+)(\[.*?\])?;
+
+# NOTE: the _match variables are perl expressions -- not mere regular
+# expressions -- so that you can extend them to match other patterns
+# and easily extract matched variable names.
+# For example, if your project declares some global variables via
+# a macro like this: GLOBAL(type, var_name, initializer), then you
+# can override this definition to automatically extract those names:
+# export _gl_TS_var_match = \
+# /^(?:$(_gl_TS_extern)) .*?\**(\w+)(\[.*?\])?;/ || /\bGLOBAL\(.*?,\s*(.*?),/
+_gl_TS_var_match ?= /^(?:$(_gl_TS_extern)) .*?(\w+)(\[.*?\])?;/
+
+# The names of object files in (or relative to) $(_gl_TS_dir).
+_gl_TS_obj_files ?= *.$(OBJEXT)
+
+# Files in which to search for the one-line style extern declarations.
+# $(_gl_TS_dir)-relative.
+_gl_TS_headers ?= $(noinst_HEADERS)
+
.PHONY: _gl_tight_scope
_gl_tight_scope: $(bin_PROGRAMS)
t=exceptions-$$$$; \
done; \
src=`for f in $(SOURCES); do \
test -f $$f && d= || d=$(srcdir)/; echo $$d$$f; done`; \
- hdr=`for f in $(noinst_HEADERS); do \
+ hdr=`for f in $(_gl_TS_headers); do \
test -f $$f && d= || d=$(srcdir)/; echo $$d$$f; done`; \
- ( printf '^%s$$\n' $(_gl_TS_unmarked_extern_functions); \
+ ( printf '^%s$$\n' '__.*' $(_gl_TS_unmarked_extern_functions); \
grep -h -A1 '^extern .*[^;]$$' $$src \
| grep -vE '^(extern |--)' | sed 's/ .*//'; \
- perl -lne '/$(_gl_TS_function_regex)/' \
- -e 'and print $$1' $$hdr; \
- ) | sort -u | sed 's/^/^/;s/$$/$$/' > $$t; \
- nm -e *.$(OBJEXT) | sed -n 's/.* T //p' | grep -Ev -f $$t \
+ perl -lne \
+ '$(_gl_TS_function_match) and print "^$$1\$$"' $$hdr; \
+ ) | sort -u > $$t; \
+ nm -e $(_gl_TS_obj_files) | sed -n 's/.* T //p'|grep -Ev -f $$t \
&& { echo the above functions should have static scope >&2; \
exit 1; } || : ; \
- ( printf '^%s$$\n' $(_gl_TS_unmarked_extern_vars); \
- perl -lne '/$(_gl_TS_var_regex)/ and print "^$$1\$$"' \
- $$hdr *.h ) | sort -u > $$t; \
- nm -e *.$(OBJEXT) | sed -n 's/.* [BCDGRS] //p' \
+ ( printf '^%s$$\n' '__.*' $(_gl_TS_unmarked_extern_vars); \
+ perl -lne '$(_gl_TS_var_match) and print "^$$1\$$"' $$hdr *.h \
+ ) | sort -u > $$t; \
+ nm -e $(_gl_TS_obj_files) | sed -n 's/.* [BCDGRS] //p' \
| sort -u | grep -Ev -f $$t \
&& { echo the above variables should have static scope >&2; \
exit 1; } || :
projects / gnulib.git / blobdiff