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[PATCH] Use one-dimension arrays in gen-posix-conf-vars.awk
- From: Siddhesh Poyarekar <siddhesh at redhat dot com>
- To: libc-alpha at sourceware dot org
- Cc: Chris Metcalf <cmetcalf at ezchip dot com>
- Date: Tue, 30 Dec 2014 15:20:50 +0530
- Subject: [PATCH] Use one-dimension arrays in gen-posix-conf-vars.awk
- Authentication-results: sourceware.org; auth=none
True multi-dimensional arrays were introduced in awk 4.0 and we
support awk versions as early as 3.12. Use a single subscript of the
form prefix_conf instead of two dimensions to work around this
limitation. We also need one additional array of just the conf names
subscripted by the prefix_conf to print the names for the
specifications.
Siddhesh
* scripts/gen-posix-conf-vars.awk: Don't use multi-dimensional
arrays.
---
scripts/gen-posix-conf-vars.awk | 46 ++++++++++++++++++++---------------------
1 file changed, 23 insertions(+), 23 deletions(-)
diff --git a/scripts/gen-posix-conf-vars.awk b/scripts/gen-posix-conf-vars.awk
index 007cd74..9630b56 100644
--- a/scripts/gen-posix-conf-vars.awk
+++ b/scripts/gen-posix-conf-vars.awk
@@ -42,36 +42,36 @@ $1 == "}" {
# CONFSTR: A configuration string
# SYSCONF: A numeric value
# SPEC: A specification
- sc_prefixes[prefix][$1] = sc_prefix
- conf[prefix][$1] = type
+ c = sprintf("%s_%s", prefix, $1)
+ sc_prefixes[c] = sc_prefix
+ prefix_conf[c] = type
+ conf[c] = $1
}
END {
print "/* AUTOGENERATED by gen-posix-conf-vars.awk. DO NOT EDIT. */\n"
# Generate macros that specify if a sysconf macro is defined and/or set.
- for (p in conf) {
- for (c in conf[p]) {
- printf "#ifndef _%s_%s\n", p, c
- printf "# define CONF_DEF_%s_%s CONF_DEF_UNDEFINED\n", p, c
- # CONFSTR have string values and they are not set or unset.
- if (conf[p][c] != "CONFSTR") {
- printf "#else\n"
- printf "# if _%s_%s > 0\n", p, c
- printf "# define CONF_DEF_%s_%s CONF_DEF_DEFINED_SET\n", p, c
- printf "# else\n"
- printf "# define CONF_DEF_%s_%s CONF_DEF_DEFINED_UNSET\n", p, c
- printf "# endif\n"
- }
- printf "#endif\n\n"
+ for (c in prefix_conf) {
+ printf "#ifndef _%s\n", c
+ printf "# define CONF_DEF_%s CONF_DEF_UNDEFINED\n", c
+ # CONFSTR have string values and they are not set or unset.
+ if (prefix_conf[c] != "CONFSTR") {
+ printf "#else\n"
+ printf "# if _%s > 0\n", c
+ printf "# define CONF_DEF_%s CONF_DEF_DEFINED_SET\n", c
+ printf "# else\n"
+ printf "# define CONF_DEF_%s CONF_DEF_DEFINED_UNSET\n", c
+ printf "# endif\n"
+ }
+ printf "#endif\n\n"
- # Build a name -> sysconf number associative array to print a C array at
- # the end.
- if (conf[p][c] == "SPEC") {
- name = sprintf ("%s_%s", p, c)
- num = sprintf ("%s_%s", sc_prefixes[p][c], c)
- spec[name] = num
- }
+ # Build a name -> sysconf number associative array to print a C array at
+ # the end.
+ if (prefix_conf[c] == "SPEC") {
+ name = sprintf ("%s", c)
+ num = sprintf ("%s_%s", sc_prefixes[c], conf[c])
+ spec[name] = num
}
}
--
2.1.0