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mpers.awk: add support for DWARF files generated by clang

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* mpers.awk: Define default_pointer_size.  Initialize byte_size
for DW_TAG_pointer_type to default_pointer_size.  Set parent
for DW_TAG_member only.  Handle DW_AT_count as an alternative
to DW_AT_upper_bound.
This commit is contained in:
Дмитрий Левин 2016-01-13 02:31:12 +00:00
parent 1ef7aa65ab
commit cc902e3272
1 changed files with 11 additions and 4 deletions
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15
mpers.awk
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@ -1,7 +1,7 @@
#!/bin/gawk #!/bin/gawk
# #
# Copyright (c) 2015 Elvira Khabirova <lineprinter0@gmail.com> # 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>
# All rights reserved. # All rights reserved.
# #
# Redistribution and use in source and binary forms, with or without # Redistribution and use in source and binary forms, with or without
@ -173,6 +173,8 @@ function what_is(what_idx, type_idx, special, item, \
return leave(what_idx, "") return leave(what_idx, "")
} }
BEGIN { BEGIN {
match(ARCH_FLAG, /[[:digit:]]+/, temparray)
default_pointer_size = temparray[0] / 8
print "#include <inttypes.h>" print "#include <inttypes.h>"
} }
/^<[[:xdigit:]]+>/ { /^<[[:xdigit:]]+>/ {
@ -181,9 +183,6 @@ BEGIN {
idx = "0x" matches[2] idx = "0x" matches[2]
array[idx]["idx"] = idx array[idx]["idx"] = idx
parent[level] = idx parent[level] = idx
if (level > 1) {
array[idx]["parent"] = parent[level-1]
}
} }
/^DW_AT_data_member_location/ { /^DW_AT_data_member_location/ {
if (!match($0, /\(DW_OP_plus_uconst:[[:space:]]+([[:digit:]]+)\)/, temparray)) if (!match($0, /\(DW_OP_plus_uconst:[[:space:]]+([[:digit:]]+)\)/, temparray))
@ -211,10 +210,18 @@ BEGIN {
match($0, /[[:digit:]]+/, temparray) match($0, /[[:digit:]]+/, temparray)
array[parent[level-1]]["upper_bound"] = temparray[0] + 1 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_/ { /^Abbrev Number:[^(]+\(DW_TAG_/ {
if (match($0, /typedef|union_type|structure_type|pointer_type\ if (match($0, /typedef|union_type|structure_type|pointer_type\
|enumeration_type|array_type|base_type|member/, temparray)) { |enumeration_type|array_type|base_type|member/, temparray)) {
array[idx]["special"] = 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[idx]["parent"] = parent[level-1]
} }
} }
END { END {