#!/bin/gawk
#
# Copyright (c) 2015 Elvira Khabirova <lineprinter0@gmail.com>
-# Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
+# Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
+# Copyright (c) 2015-2018 The strace developers.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# (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))
- if (c1 < c2)
- return -1
- return (c1 != c2)
-}
-function array_get(array_idx, array_member, array_return)
+function array_get(array_idx, array_member, \
+ array_return)
{
- array_return = array[array_idx][array_member]
+ array_return = array[array_idx, array_member]
if ("" == array_return) {
printf("%s: index [%s] without %s\n",
FILENAME, array_idx, array_member) > "/dev/stderr"
}
return array_return
}
+function norm_idx(idx)
+{
+ return sprintf("%016s", idx)
+}
function array_seq(array_idx)
{
- if ("seq" in array[array_idx])
- return array[array_idx]["seq"]
+ if ((array_idx, "seq") in array)
+ return array[array_idx, "seq"]
index_seq++
- array[array_idx]["seq"] = index_seq
+ array[array_idx, "seq"] = index_seq
return index_seq
}
-function enter(array_idx)
+function enter(array_idx,
+ item)
{
if (array_idx in called) {
printf("%s: index loop detected:", FILENAME) > "/dev/stderr"
delete called[array_idx]
return to_return
}
-function what_is(what_idx, type_idx, special, item, \
- location, prev_location, prev_returned_size)
+function update_upper_bound(idx, val, \
+ count)
+{
+ count = array[idx, "count"]
+ if (count == "")
+ count = 1
+ array[idx, "count"] = count * val
+ array[idx, "upper_bound"] = array[idx, "upper_bound"] "[" val "]"
+}
+function what_is(what_idx, \
+ item, loc_diff, location, prev_location, prev_returned_size, \
+ special, to_return, type_idx, enc, i)
{
enter(what_idx)
special = array_get(what_idx, "special")
- switch (special) {
- case "base_type":
- switch (array_get(what_idx, "encoding")) {
- case 5: # signed
+ if (special == "base_type") {
+ enc = array_get(what_idx, "encoding")
+ if (enc == 5) { # signed
printf("int%s_t ",
8 * array_get(what_idx, "byte_size"))
- break
- case 7: # unsigned
+ } else if (enc == 7) { # unsigned
printf("uint%s_t ",
8 * array_get(what_idx, "byte_size"))
- break
- default: # float, signed/unsigned char
+ } else { # float, signed/unsigned char
printf("%s ", array_get(what_idx, "name"))
- break
}
returned_size = array_get(what_idx, "byte_size")
- break
- case "enumeration_type":
- type_idx = array_get(what_idx, "type")
+ } else if (special == "enumeration_type") {
returned_size = array_get(what_idx, "byte_size")
printf("uint%s_t ", 8 * returned_size)
- break
- case "pointer_type":
+ } else if (special == "pointer_type") {
printf("mpers_ptr_t ")
returned_size = array_get(what_idx, "byte_size")
- break
- case "array_type":
+ } else if (special == "array_type") {
type_idx = array_get(what_idx, "type")
what_is(type_idx)
- to_return = array[what_idx]["upper_bound"]
+ to_return = array[what_idx, "upper_bound"]
if ("" == to_return)
- to_return = 0
- returned_size = to_return * returned_size
+ to_return = "[0]"
+ returned_size = array[what_idx, "count"] * returned_size
return leave(what_idx, to_return)
- break
- case "structure_type":
+ } else if (special == "structure_type") {
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")
+ for (i = 1; i <= parents_cnt; i += 1) {
+ if (array_parents[aparents_keys[i]] == what_idx) {
+ location = array_get(aparents_keys[i], "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)
+ "filler", array_seq(aparents_keys[i]), loc_diff)
}
prev_location = location
- returned = what_is(item)
+ returned = what_is(aparents_keys[i])
prev_returned_size = returned_size
- printf("%s", array[item]["name"])
- if ("" != returned) {
- printf("[%s]", returned)
- }
- print ";"
+ printf("%s%s;\n", array[aparents_keys[i], "name"], returned)
}
}
returned_size = array_get(what_idx, "byte_size")
"end_filler", array_seq(item), loc_diff)
}
printf("} ATTRIBUTE_PACKED ")
- break
- case "union_type":
+ } else if (special == "union_type") {
print "union {"
- for (item in array) {
- if ("parent" in array[item] && \
- array_get(item, "parent") == what_idx) {
- returned = what_is(item)
- printf("%s", array_get(item, "name"))
- if ("" != returned) {
- printf("[%s]", returned)
- }
- print ";"
+ for (i = 1; i <= parents_cnt; i += 1) {
+ if (array_parents[aparents_keys[i]] == what_idx) {
+ returned = what_is(aparents_keys[i])
+ printf("%s%s;\n", array[aparents_keys[i], "name"], returned)
}
}
printf("} ")
returned_size = array_get(what_idx, "byte_size")
- break
- case "typedef":
+ } else if (special == "typedef") {
type_idx = array_get(what_idx, "type")
return leave(what_idx, what_is(type_idx))
- break
- case "member":
+ } else if (special == "member") {
type_idx = array_get(what_idx, "type")
return leave(what_idx, what_is(type_idx))
- break
- default:
+ } else {
type_idx = array_get(what_idx, "type")
what_is(type_idx)
- break
}
return leave(what_idx, "")
}
BEGIN {
- print "#include <inttypes.h>"
+ match(ARCH_FLAG, /[[:digit:]]+/, temparray)
+ default_pointer_size = temparray[0] / 8
+ print "#include <stdint.h>"
}
/^<[[:xdigit:]]+>/ {
match($0, /([[:alnum:]]+)><([[:alnum:]]+)/, matches)
level = matches[1]
- idx = "0x" matches[2]
- array[idx]["idx"] = idx
+ idx = norm_idx(matches[2])
+ array[idx, "idx"] = idx
parent[level] = idx
- if (level > 1) {
- array[idx]["parent"] = parent[level-1]
- }
}
/^DW_AT_data_member_location/ {
if (!match($0, /\(DW_OP_plus_uconst:[[:space:]]+([[:digit:]]+)\)/, temparray))
match($0, /([[:digit:]]+)/, temparray)
- array[idx]["location"] = temparray[1]
+ array[idx, "location"] = temparray[1]
}
/^DW_AT_name/ {
match($0, /:[[:space:]]+([[:alpha:]_][[:alnum:]_[:space:]]*)/, \
temparray)
- array[idx]["name"] = temparray[1]
+ array_names[idx] = 1
+ array[idx, "name"] = temparray[1]
}
/^DW_AT_byte_size/ {
match($0, /[[:digit:]]+/, temparray)
- array[idx]["byte_size"] = temparray[0]
+ array[idx, "byte_size"] = temparray[0]
}
/^DW_AT_encoding/ {
match($0, /[[:digit:]]+/, temparray)
- array[idx]["encoding"] = temparray[0]
+ array[idx, "encoding"] = temparray[0]
}
/^DW_AT_type/ {
- match($0, /:[[:space:]]+<(0x[[:xdigit:]]*)>$/, temparray)
- array[idx]["type"] = temparray[1]
+ match($0, /:[[:space:]]+<0x([[:xdigit:]]*)>$/, temparray)
+ array[idx, "type"] = norm_idx(temparray[1])
}
/^DW_AT_upper_bound/ {
match($0, /[[:digit:]]+/, temparray)
- array[parent[level-1]]["upper_bound"] = temparray[0] + 1
+ update_upper_bound(parent[level - 1], temparray[0] + 1)
+}
+/^DW_AT_count/ {
+ match($0, /[[:digit:]]+/, temparray)
+ update_upper_bound(parent[level - 1], 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]
+ array_special[idx] = temparray[0]
+ array[idx, "special"] = temparray[0]
+ if ("pointer_type" == temparray[0])
+ array[idx, "byte_size"] = default_pointer_size
+ if (level > 1 && "member" == temparray[0])
+ array_parents[idx] = parent[level-1]
}
}
END {
- PROCINFO["sorted_in"] = "compare_indices"
- for (item in array) {
- if (array[item]["special"] == "pointer_type") {
- print "typedef uint" \
- 8 * array_get(item, "byte_size") "_t mpers_ptr_t;"
+ parents_cnt = asorti(array_parents, aparents_keys)
+
+ for (item in array_special) {
+ if (array[item, "special"] == "pointer_type") {
+ mpers_ptr_t = \
+ "uint" 8 * array_get(item, "byte_size") "_t"
+ print "#ifndef mpers_ptr_t_is_" mpers_ptr_t
+ print "typedef " mpers_ptr_t " mpers_ptr_t;"
+ print "#define mpers_ptr_t_is_" mpers_ptr_t
+ print "#endif"
break
}
}
- for (item in array) {
- if (array[item]["name"] == VAR_NAME) {
+ for (item in array_names) {
+ if (array[item, "name"] == VAR_NAME) {
type = array_get(item, "type")
print "typedef"
what_is(type)
projects / strace / blobdiff