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Rewrite sysd-rules generation using an awk script.
This commit is contained in:
Roland McGrath
parent
1a8463176c
commit
346d65b33a
@ -1,3 +1,11 @@
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2013-06-17 Roland McGrath <roland@hack.frob.com>
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* Makerules [inhibit-sysdep-asm] (check-inhibit-asm): Variable removed.
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($(common-objpfx)sysd-rules): Replace shell logic with running ...
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* scripts/sysd-rules.awk: ... this new script.
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* sysdeps/mach/hurd/Makefile (inhibit-sysdep-asm): Use a regexp rather
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than a glob-style pattern.
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2013-06-17 Joseph Myers <joseph@codesourcery.com>
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* math/test-misc.c (main): Do not treat incorrectly rounded
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43
Makerules
43
Makerules
@ -217,14 +217,9 @@ endif
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# later directory would be chosen over a .c file in an earlier directory,
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# which does not preserve the desired sysdeps ordering behavior.
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# System-dependent makefiles can put in `inhibit-sysdep-asm' wildcard
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# patterns matching sysdep directories whose assembly source files should
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# be suppressed.
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ifdef inhibit-sysdep-asm
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define check-inhibit-asm
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case $$sysdir in $(subst $(empty) ,|,$(inhibit-sysdep-asm))) asm= ;; esac;
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endef
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endif
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# System-dependent makefiles can put in `inhibit-sysdep-asm' regexps
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# matching sysdep directories whose assembly source files should be
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# suppressed.
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-include $(common-objpfx)sysd-rules
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ifneq ($(sysd-rules-sysdirs),$(config-sysdirs))
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@ -233,34 +228,16 @@ ifneq ($(sysd-rules-sysdirs),$(config-sysdirs))
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sysd-rules-force = FORCE
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FORCE:
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endif
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$(common-objpfx)sysd-rules: $(common-objpfx)config.make $(..)Makerules \
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$(common-objpfx)sysd-rules: $(..)scripts/sysd-rules.awk \
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$(common-objpfx)config.make $(..)Makerules \
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$(sysdep-makefiles) $(sysdep-makeconfigs) \
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$(sysd-rules-force)
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-@rm -f $@T
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(echo 'sysd-rules-sysdirs := $(config-sysdirs)'; \
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for dir in $(config-sysdirs); do \
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case "$$dir" in \
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/*) ;; \
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*) dir="\$$(..)$$dir" ;; \
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esac; \
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asm='.S'; \
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$(check-inhibit-asm) \
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for o in $(all-object-suffixes); do \
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set $(subst :, ,$(sysd-rules-patterns)); \
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while [ $$# -ge 2 ]; do \
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t=$$1; shift; \
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d=$$1; shift; \
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v=$${t%%%}; [ x"$$v" = x ] || v="\$$($${v}CPPFLAGS)"; \
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for s in $$asm .c; do \
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echo "\$$(objpfx)$$t$$o: $$dir/$$d$$s \$$(before-compile)"; \
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echo " \$$(compile-command$$s) $$v"; \
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done; \
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done; \
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done; \
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echo "\$$(inst_includedir)/%.h: $$dir/%.h \$$(+force)"; \
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echo " \$$(do-install)"; \
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done; \
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echo 'sysd-rules-done = t') > $@T
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LC_ALL=C $(AWK) -f $< > $@T \
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-v all_object_suffixes='$(all-object-suffixes)' \
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-v inhibit_sysdep_asm='$(inhibit-sysdep-asm)' \
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-v sysd_rules_patterns='$(sysd-rules-patterns)' \
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-v config_sysdirs='$(config-sysdirs)'
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mv -f $@T $@
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ifndef sysd-rules-done
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60
scripts/sysd-rules.awk
Normal file
60
scripts/sysd-rules.awk
Normal file
@ -0,0 +1,60 @@
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# This is a GAWK script to generate the sysd-rules file.
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# It does not read any input, but it requires that several variables
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# be set on its command line (using -v) to their makefile counterparts:
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# all_object_suffixes $(all-object-suffixes)
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# inhibit_sysdep_asm $(inhibit-sysdep-asm)
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# config_sysdirs $(config_sysdirs)
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# sysd_rules_patterns $(sysd-rules-patterns)
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BEGIN {
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print "sysd-rules-sysdirs :=", config_sysdirs;
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nsuffixes = split(all_object_suffixes, suffixes);
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ninhibit_asm = split(inhibit_sysdep_asm, inhibit_asm);
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nsysdirs = split(config_sysdirs, sysdirs);
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npatterns = split(sysd_rules_patterns, patterns);
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for (sysdir_idx = 1; sysdir_idx <= nsysdirs; ++sysdir_idx) {
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dir = sysdirs[sysdir_idx];
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if (dir !~ /^\//) dir = "$(..)" dir;
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asm_rules = 1;
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for (i = 1; i <= ninhibit_asm; ++i) {
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if (dir ~ ("^.*sysdeps/" inhibit_asm[i] "$")) {
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asm_rules = 0;
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break;
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}
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}
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for (suffix_idx = 1; suffix_idx <= nsuffixes; ++suffix_idx) {
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o = suffixes[suffix_idx];
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for (pattern_idx = 1; pattern_idx <= npatterns; ++pattern_idx) {
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pattern = patterns[pattern_idx];
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if (split(pattern, td, ":") != 2) {
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print "bad sysd-rules-patterns element '" pattern "'" > "/dev/stderr";
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exit 2;
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}
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target_pattern = td[1];
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dep_pattern = td[2];
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if (target_pattern == "%") {
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command_suffix = "";
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} else {
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prefix = gensub(/%/, "", "", target_pattern);
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command_suffix = " $(" prefix "CPPFLAGS)";
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}
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target = "$(objpfx)" target_pattern o ":";
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if (asm_rules) {
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dep = dir "/" dep_pattern ".S";
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print target, dep, "$(before-compile)";
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print "\t$(compile-command.S)" command_suffix;
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}
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dep = dir "/" dep_pattern ".c";
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print target, dep, "$(before-compile)";
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print "\t$(compile-command.c)" command_suffix;
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}
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}
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print "$(inst_includedir)/%.h:", dir "/%.h", "$(+force)";
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print "\t$(do-install)";
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}
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print "sysd-rules-done := t";
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exit 0;
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}
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@ -28,7 +28,7 @@ includes += -I$(..)hurd -I$(common-objpfx)hurd/
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# Do not use any assembly code from sysdeps/unix (and subdirectories).
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# This bypasses all the system call stubs and uses any existing posix or
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# generic C files instead.
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inhibit-sysdep-asm += unix*
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inhibit-sysdep-asm += unix.*
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inhibit-unix-syscalls = yes
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# Don't try to generate anything from the installed Unix system and its
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