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# This is a GAWK script to generate the sysd-rules file.
# It does not read any input, but it requires that several variables
# be set on its command line (using -v) to their makefile counterparts:
# all_object_suffixes $(all-object-suffixes)
# inhibit_sysdep_asm $(inhibit-sysdep-asm)
# config_sysdirs $(config_sysdirs)
# sysd_rules_patterns $(sysd-rules-patterns)
BEGIN {
print "sysd-rules-sysdirs :=", config_sysdirs;
nsuffixes = split(all_object_suffixes, suffixes);
ninhibit_asm = split(inhibit_sysdep_asm, inhibit_asm);
nsysdirs = split(config_sysdirs, sysdirs);
npatterns = split(sysd_rules_patterns, patterns);
# Each element of $(sysd-rules-patterns) is a pair TARGET:DEP.
# They are no in particular order. We need to sort them so that
# the longest TARGET is first, and, among elements with the same
# TARGET, the longest DEP is first.
for (i = 1; i <= npatterns; ++i) {
if (split(patterns[i], td, ":") != 2) {
msg = "bad sysd-rules-patterns element '" patterns[i] "'";
print msg > "/dev/stderr";
exit 2;
}
target_order = sprintf("%09d", npatterns + 1 - length(td[1]));
dep_order = sprintf("%09d", npatterns - length(td[2]));
sort_patterns[target_order SUBSEP dep_order] = patterns[i];
}
asorti(sort_patterns, map_patterns);
for (i in map_patterns) {
patterns[i] = sort_patterns[map_patterns[i]];
}
for (sysdir_idx = 1; sysdir_idx <= nsysdirs; ++sysdir_idx) {
dir = sysdirs[sysdir_idx];
if (dir !~ /^\//) dir = "$(..)" dir;
asm_rules = 1;
for (i = 1; i <= ninhibit_asm; ++i) {
if (dir ~ ("^.*sysdeps/" inhibit_asm[i] "$")) {
asm_rules = 0;
break;
}
}
for (suffix_idx = 1; suffix_idx <= nsuffixes; ++suffix_idx) {
o = suffixes[suffix_idx];
for (pattern_idx = 1; pattern_idx <= npatterns; ++pattern_idx) {
pattern = patterns[pattern_idx];
split(pattern, td, ":");
target_pattern = td[1];
dep_pattern = td[2];
# rtld objects are always PIC.
if (target_pattern ~ /^rtld/ && o != ".os") {
continue;
}
if (target_pattern == "%") {
command_suffix = "";
} else {
prefix = gensub(/%/, "", 1, target_pattern);
command_suffix = " $(" prefix "CPPFLAGS)" " $(" prefix "CFLAGS)";
}
target = "$(objpfx)" target_pattern o ":";
if (asm_rules) {
dep = dir "/" dep_pattern ".S";
print target, dep, "$(before-compile)";
print "\t$(compile-command.S)" command_suffix;
}
dep = dir "/" dep_pattern ".c";
print target, dep, "$(before-compile)";
print "\t$(compile-command.c)" command_suffix;
}
}
print "$(inst_includedir)/%.h:", dir "/%.h", "$(+force)";
print "\t$(do-install)";
}
print "sysd-rules-done := t";
exit 0;
}
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