+#!/bin/gawk
+#
+# Copyright (c) 2015 Elvira Khabirova <lineprinter0@gmail.com>
+# Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. The name of the author may not be used to endorse or promote products
+# derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
function compare_indices(i1, v1, i2, v2) {
c1 = strtonum(sprintf("%s", i1))
c2 = strtonum(sprintf("%s", i2))
return -1
return (c1 != c2)
}
-function what_is(what_idx, type_idx, special, item)
+function array_get(array_idx, array_member, array_return)
{
- type_idx = array[what_idx]["type"]
- special = array[what_idx]["special"]
+ array_return = array[array_idx][array_member]
+ if ("" == array_return) {
+ printf("%s: index [%s] without %s\n",
+ FILENAME, array_idx, array_member) > "/dev/stderr"
+ exit 1
+ }
+ return array_return
+}
+function array_seq(array_idx)
+{
+ if ("seq" in array[array_idx])
+ return array[array_idx]["seq"]
+ index_seq++
+ array[array_idx]["seq"] = index_seq
+ return index_seq
+}
+function enter(array_idx)
+{
+ if (array_idx in called) {
+ printf("%s: index loop detected:", FILENAME) > "/dev/stderr"
+ for (item in called)
+ printf(" %s", item) > "/dev/stderr"
+ print "" > "/dev/stderr"
+ exit 1
+ }
+ called[array_idx] = 1
+}
+function leave(array_idx, to_return)
+{
+ delete called[array_idx]
+ return to_return
+}
+function what_is(what_idx, type_idx, special, item, \
+ location, prev_location, prev_returned_size)
+{
+ enter(what_idx)
+ special = array_get(what_idx, "special")
switch (special) {
case "base_type":
- switch (array[what_idx]["encoding"]) {
+ switch (array_get(what_idx, "encoding")) {
case 5: # signed
- printf("%s ", "int" \
- 8*array[what_idx]["byte_size"] "_t")
+ printf("int%s_t ",
+ 8 * array_get(what_idx, "byte_size"))
break
case 7: # unsigned
- printf("%s ", "uint" \
- 8*array[what_idx]["byte_size"] "_t")
+ printf("uint%s_t ",
+ 8 * array_get(what_idx, "byte_size"))
break
default: # float, signed/unsigned char
- printf("%s ", array[what_idx]["name"])
+ printf("%s ", array_get(what_idx, "name"))
break
}
+ returned_size = array_get(what_idx, "byte_size")
break
case "enumeration_type":
- printf("%s ", "uint" 8*array[type_idx]["byte_size"] "_t")
+ returned_size = array_get(what_idx, "byte_size")
+ printf("uint%s_t ", 8 * returned_size)
break
case "pointer_type":
- printf("%s", "mpers_ptr_t ")
+ printf("mpers_ptr_t ")
+ returned_size = array_get(what_idx, "byte_size")
break
case "array_type":
+ type_idx = array_get(what_idx, "type")
what_is(type_idx)
to_return = array[what_idx]["upper_bound"]
- return to_return
+ if ("" == to_return)
+ to_return = 0
+ returned_size = to_return * returned_size
+ return leave(what_idx, to_return)
break
case "structure_type":
- case "union_type":
- if (special == "structure_type") {
- print "struct {"
- } else {
- print "union {"
+ print "struct {"
+ prev_location = 0
+ location = 0
+ returned_size = 0
+ prev_returned_size = 0
+ for (item in array) {
+ if ("parent" in array[item] && \
+ array_get(item, "parent") == what_idx) {
+ location = array_get(item, "location")
+ loc_diff = location - prev_location - \
+ prev_returned_size
+ if (loc_diff != 0) {
+ printf("unsigned char mpers_%s_%s[%s];\n",
+ "filler", array_seq(item), loc_diff)
+ }
+ prev_location = location
+ returned = what_is(item)
+ prev_returned_size = returned_size
+ printf("%s", array[item]["name"])
+ if ("" != returned) {
+ printf("[%s]", returned)
+ }
+ print ";"
+ }
+ }
+ returned_size = array_get(what_idx, "byte_size")
+ loc_diff = returned_size - prev_location - prev_returned_size
+ if (loc_diff != 0) {
+ printf("unsigned char mpers_%s_%s[%s];\n",
+ "end_filler", array_seq(item), loc_diff)
}
+ printf("} ATTRIBUTE_PACKED ")
+ break
+ case "union_type":
+ print "union {"
for (item in array) {
- if ("parent" in array[item] && array[item]["parent"] \
- == what_idx) {
+ if ("parent" in array[item] && \
+ array_get(item, "parent") == what_idx) {
returned = what_is(item)
printf("%s", array[item]["name"])
- if (returned) {
- printf("%s", "[" returned "]")
+ if ("" != returned) {
+ printf("[%s]", returned)
}
print ";"
}
}
- printf("%s", "} ")
+ printf("} ")
+ returned_size = array_get(what_idx, "byte_size")
break
case "typedef":
- return what_is(type_idx)
+ type_idx = array_get(what_idx, "type")
+ return leave(what_idx, what_is(type_idx))
break
case "member":
- return what_is(type_idx)
+ type_idx = array_get(what_idx, "type")
+ return leave(what_idx, what_is(type_idx))
break
default:
+ type_idx = array_get(what_idx, "type")
what_is(type_idx)
break
}
- return 0
+ return leave(what_idx, "")
}
BEGIN {
+ match(ARCH_FLAG, /[[:digit:]]+/, temparray)
+ default_pointer_size = temparray[0] / 8
print "#include <inttypes.h>"
}
/^<[[:xdigit:]]+>/ {
idx = "0x" matches[2]
array[idx]["idx"] = idx
parent[level] = idx
- if (level > 1) {
- array[idx]["parent"] = parent[level-1]
- }
}
/^DW_AT_data_member_location/ {
- match($0, /[[:digit:]]+/, temparray)
+ if (!match($0, /\(DW_OP_plus_uconst:[[:space:]]+([[:digit:]]+)\)/, temparray))
+ match($0, /([[:digit:]]+)/, temparray)
array[idx]["location"] = temparray[1]
}
/^DW_AT_name/ {
- match($0, /:[[:space:]]+([[:alpha:]_][[:alnum:]_[:space:]]*)/, temparray)
+ match($0, /:[[:space:]]+([[:alpha:]_][[:alnum:]_[:space:]]*)/, \
+ temparray)
array[idx]["name"] = temparray[1]
}
/^DW_AT_byte_size/ {
match($0, /[[:digit:]]+/, temparray)
array[parent[level-1]]["upper_bound"] = temparray[0] + 1
}
+/^DW_AT_count/ {
+ match($0, /[[:digit:]]+/, temparray)
+ array[parent[level-1]]["upper_bound"] = temparray[0]
+}
/^Abbrev Number:[^(]+\(DW_TAG_/ {
if (match($0, /typedef|union_type|structure_type|pointer_type\
|enumeration_type|array_type|base_type|member/, temparray)) {
array[idx]["special"] = temparray[0]
+ if ("pointer_type" == temparray[0])
+ array[idx]["byte_size"] = default_pointer_size
+ if (level > 1 && "member" == temparray[0])
+ array[idx]["parent"] = parent[level-1]
}
}
END {
for (item in array) {
if (array[item]["special"] == "pointer_type") {
print "typedef uint" \
- 8*array[item]["byte_size"] "_t mpers_ptr_t;"
+ 8 * array_get(item, "byte_size") "_t mpers_ptr_t;"
break
}
}
for (item in array) {
if (array[item]["name"] == VAR_NAME) {
- type=array[item]["type"]
+ type = array_get(item, "type")
print "typedef"
- what_is(array[item]["type"])
- print ARCH_FLAG "_" array[type]["name"] ";"
+ what_is(type)
+ name = array_get(type, "name")
+ print ARCH_FLAG "_" name ";"
print "#define MPERS_" \
- ARCH_FLAG "_" array[type]["name"] " " \
- ARCH_FLAG "_" array[type]["name"]
+ ARCH_FLAG "_" name " " \
+ ARCH_FLAG "_" name
break
}
}
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