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Commit | Line | Data |
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6e3d59bc RM |
1 | # This awk script processes the output of objdump --dynamic-syms |
2 | # into a simple format that should not change when the ABI is not changing. | |
3 | ||
15a686af RM |
4 | BEGIN { |
5 | if (parse_names) | |
6 | out = "/dev/stderr"; | |
7 | else | |
8 | out = "/dev/stdout"; | |
9 | } | |
10 | ||
11 | # Per-file header. | |
12 | /[^ :]+\.so\.[0-9]+:[ ]+.file format .*$/ { | |
13 | if (parse_names && soname != "") | |
14 | emit(1); | |
15 | ||
16 | sofullname = $1; | |
17 | sub(/:$/, "", sofullname); | |
18 | soname = sofullname; | |
19 | sub(/^.*\//, "", soname); | |
20 | sub(/\.so\.[0-9]+$/, "", soname); | |
21 | ||
22 | next | |
23 | } | |
24 | ||
6e3d59bc RM |
25 | # Normalize columns. |
26 | /^[0-9a-fA-F]+ / { sub(/ /, " - ") } | |
27 | ||
28 | # Skip undefineds. | |
29 | $4 == "*UND*" { next } | |
30 | ||
31 | # Skip locals. | |
32 | $2 == "l" { next } | |
33 | ||
34 | $2 == "g" || $2 == "w" && NF == 7 { | |
c823a4d2 | 35 | weak = $2; |
6e3d59bc | 36 | type = $3; |
56c71d45 RM |
37 | size = $5; |
38 | sub(/^0*/, "", size); | |
c823a4d2 | 39 | size = " 0x" size; |
6e3d59bc RM |
40 | version = $6; |
41 | symbol = $7; | |
42 | gsub(/[()]/, "", version); | |
43 | ||
44 | if (version == "GLIBC_PRIVATE") next; | |
45 | ||
46 | if (type == "D" && $4 == ".tbss") { | |
c823a4d2 | 47 | type = "T"; |
6e3d59bc | 48 | } |
5d0bbaaf | 49 | else if (type == "D" && $4 == ".opd") { |
c823a4d2 RM |
50 | type = "O"; |
51 | size = ""; | |
5d0bbaaf | 52 | } |
6e3d59bc | 53 | else if (type == "DO" && $4 == "*ABS*") { |
c823a4d2 RM |
54 | type = "A"; |
55 | size = ""; | |
6e3d59bc RM |
56 | } |
57 | else if (type == "DO") { | |
c823a4d2 | 58 | type = "D"; |
6e3d59bc RM |
59 | } |
60 | else if (type == "DF") { | |
c823a4d2 RM |
61 | type = "F"; |
62 | size = ""; | |
6e3d59bc RM |
63 | } |
64 | else { | |
15a686af | 65 | print symbol, version, weak, "?", type, $4, $5 >> out; |
c823a4d2 | 66 | next; |
6e3d59bc | 67 | } |
620656a3 | 68 | if (size == " 0x") { |
15a686af | 69 | print symbol, version, weak, "?", type, $4, $5 >> out; |
620656a3 RM |
70 | next; |
71 | } | |
6e3d59bc | 72 | |
44aeb486 RM |
73 | # Disabled -- weakness should not matter to shared library ABIs any more. |
74 | #if (weak == "w") type = tolower(type); | |
75 | desc = " " symbol " " type size; | |
c823a4d2 RM |
76 | |
77 | if (version in versions) { | |
78 | versions[version] = versions[version] "\n" desc; | |
79 | } | |
80 | else { | |
81 | versions[version] = desc; | |
82 | } | |
6e3d59bc RM |
83 | next; |
84 | } | |
85 | ||
86 | # Header crapola. | |
87 | NF == 0 || /DYNAMIC SYMBOL TABLE/ || /file format/ { next } | |
88 | ||
89 | { | |
15a686af | 90 | print "Don't grok this line:", $0 >> out |
6e3d59bc | 91 | } |
c823a4d2 | 92 | |
15a686af RM |
93 | function emit(tofile) { |
94 | if (tofile) { | |
95 | out = prefix soname ".symlist"; | |
96 | if (soname in outfiles) | |
97 | out = out "." ++outfiles[soname]; | |
98 | else | |
99 | outfiles[soname] = 1; | |
100 | } | |
101 | else | |
102 | out = "/dev/stdout"; | |
103 | ||
c823a4d2 RM |
104 | nverlist = 0; |
105 | for (version in versions) { | |
106 | if (nverslist == 0) { | |
107 | verslist = version; | |
108 | nverslist = 1; | |
109 | continue; | |
110 | } | |
111 | split(verslist, s, "\n"); | |
112 | if (version < s[1]) { | |
113 | verslist = version; | |
114 | for (i = 1; i <= nverslist; ++i) { | |
115 | verslist = verslist "\n" s[i]; | |
116 | } | |
117 | } | |
118 | else { | |
119 | verslist = s[1]; | |
120 | for (i = 2; i <= nverslist; ++i) { | |
121 | if (version < s[i]) break; | |
122 | verslist = verslist "\n" s[i]; | |
123 | } | |
124 | verslist = verslist "\n" version; | |
125 | for (; i <= nverslist; ++i) { | |
126 | verslist = verslist "\n" s[i]; | |
127 | } | |
128 | } | |
129 | ++nverslist; | |
130 | } | |
131 | ||
132 | split(verslist, order, "\n"); | |
133 | for (i = 1; i <= nverslist; ++i) { | |
134 | version = order[i]; | |
135 | ||
15a686af RM |
136 | print version >> out; |
137 | outpipe = "sort >> " out; | |
c823a4d2 RM |
138 | print versions[version] | outpipe; |
139 | close(outpipe); | |
15a686af RM |
140 | |
141 | delete versions[version]; | |
142 | } | |
143 | ||
144 | if (tofile) | |
145 | print "wrote", out, "for", sofullname; | |
146 | } | |
147 | ||
148 | END { | |
149 | if (! parse_names) | |
150 | emit(0); | |
151 | else if (soname != "") { | |
152 | emit(1); | |
c823a4d2 RM |
153 | } |
154 | } |