1 # Generate dl-tunable-list.h from dl-tunables.list
6 min_of
["INT_32"]=
"INT32_MIN"
7 max_of
["INT_32"]=
"INT32_MAX"
9 max_of
["UINT_64"]=
"UINT64_MAX"
11 max_of
["SIZE_T"]=
"SIZE_MAX"
19 # Skip over blank lines and comments.
28 # Beginning of either a top namespace, tunable namespace or a tunable, decided
29 # on the current value of TUNABLE, NS or TOP_NS.
37 else if (tunable ==
"") {
41 printf ("Unexpected occurrence of '{': %s:%d\n", FILENAME, FNR)
48 # End of either a top namespace, tunable namespace or a tunable.
51 # Tunables definition ended, now fill in default attributes.
52 if (!types
[top_ns
,ns
,tunable
]) {
53 types
[top_ns
,ns
,tunable
] =
"STRING"
55 if (!minvals
[top_ns
,ns
,tunable
]) {
56 minvals
[top_ns
,ns
,tunable
] = min_of
[types
[top_ns
,ns
,tunable
]]
58 if (!maxvals
[top_ns
,ns
,tunable
]) {
59 maxvals
[top_ns
,ns
,tunable
] = max_of
[types
[top_ns
,ns
,tunable
]]
61 if (!env_alias
[top_ns
,ns
,tunable
]) {
62 env_alias
[top_ns
,ns
,tunable
] =
"{0}"
64 len =
length(top_ns
"."ns
"."tunable
)
65 if (len
> max_name_len
)
73 else if (top_ns
!= "") {
77 printf ("syntax error: extra }: %s:%d\n", FILENAME, FNR)
83 # Everything else, which could either be a tunable without any attributes or a
87 printf("Line %d: Invalid tunable outside a namespace: %s\n", NR, $
0)
92 # We encountered a tunable without any attributes, so note it with a
94 types
[top_ns
,ns
,$
1] =
"STRING"
98 # Otherwise, we have encountered a tunable attribute.
100 attr = gensub
(/^
[ \t]+|[ \t]+$
/, "", "g", arr
[1])
101 val = gensub
(/^
[ \t]+|[ \t]+$
/, "", "g", arr
[2])
103 if (attr ==
"type") {
104 types
[top_ns
,ns
,tunable
] = val
106 else if (attr ==
"minval") {
107 minvals
[top_ns
,ns
,tunable
] = val
109 else if (attr ==
"maxval") {
110 maxvals
[top_ns
,ns
,tunable
] = val
112 else if (attr ==
"env_alias") {
113 env_alias
[top_ns
,ns
,tunable
] =
sprintf("\"%s\"", val
)
115 if (len
> max_alias_len
)
118 else if (attr ==
"default") {
119 if (types
[top_ns
,ns
,tunable
] ==
"STRING") {
120 default_val
[top_ns
,ns
,tunable
] =
sprintf(".strval = \"%s\"", val
);
123 default_val
[top_ns
,ns
,tunable
] =
sprintf(".numval = %s", val
)
130 print "Unterminated namespace. Is a closing brace missing?"
134 print "/* AUTOGENERATED by gen-tunables.awk. */"
135 print "#ifndef _TUNABLES_H_"
136 print "# error \"Do not include this file directly.\""
137 print "# error \"Include tunables.h instead.\""
139 print "#include <dl-procinfo.h>\n"
141 # Now, the enum names
142 print "\ntypedef enum"
145 split (tnm
, indices
, SUBSEP
);
149 printf (" TUNABLE_ENUM_NAME(%s, %s, %s),\n", t
, n
, m
);
151 print "} tunable_id_t;\n"
153 print "\n#ifdef TUNABLES_INTERNAL"
154 # Internal definitions.
155 print "# define TUNABLE_NAME_MAX " (max_name_len
+ 1)
156 print "# define TUNABLE_ALIAS_MAX " (max_alias_len
+ 1)
157 print "# include \"dl-tunable-types.h\""
158 # Finally, the tunable list.
159 print "static tunable_t tunable_list[] attribute_relro = {"
161 split (tnm
, indices
, SUBSEP
);
165 printf (" {TUNABLE_NAME_S(%s, %s, %s)", t
, n
, m
)
166 printf (", {TUNABLE_TYPE_%s, %s, %s}, {%s}, {%s}, false, %s},\n",
167 types
[t
,n
,m
], minvals
[t
,n
,m
], maxvals
[t
,n
,m
], default_val
[t
,n
,m
],
168 default_val
[t
,n
,m
], env_alias
[t
,n
,m
]);