find_typedef alternative that works on mainstream systems
Hi,
I just came across objdump -W which dumps the DWARF info from a object
file. This is useful to build a typedef file for pgindent. It can be
used like this:
objdump -W $object_file | \
awk '/DW_TAG_/ { grab=0 } /DW_TAG_typedef/ { grab=1 } /DW_AT_name/ { if (grab) { print $0 } }' | \
sed -e 's/^.*: \([^ ]*\)/\1/' | \
sort | \
uniq
I am disappointed by the fact that our current find_typedef script only
works on Bruce's rare platforms -- and we stopped shipping a "standard"
typedef file, which makes the problem worse.
--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
Alvaro Herrera wrote:
objdump -W $object_file | \
awk '/DW_TAG_/ { grab=0 } /DW_TAG_typedef/ { grab=1 } /DW_AT_name/ { if (grab) { print $0 } }' | \
sed -e 's/^.*: \([^ ]*\)/\1/' | \
sort | \
uniq
I oversimplified the awk line, causing some garbage to appear at the end
:-( The full awk line I am using is
awk '
/^Contents of / { if (read) exit }
/^The section / { if (read) exit }
/^The section .debug_info contains:/ { read=1 }
/DW_TAG_/ { grab=0 }
/DW_TAG_typedef/ { grab=1 }
/DW_AT_name/ { if (read && grab) { print $0 } }
'
--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
Alvaro Herrera wrote:
Alvaro Herrera wrote:
objdump -W $object_file | \
awk '/DW_TAG_/ { grab=0 } /DW_TAG_typedef/ { grab=1 } /DW_AT_name/ { if (grab) { print $0 } }' | \
sed -e 's/^.*: \([^ ]*\)/\1/' | \
sort | \
uniqI oversimplified the awk line, causing some garbage to appear at the end
:-( The full awk line I am using isawk '
/^Contents of / { if (read) exit }
/^The section / { if (read) exit }
/^The section .debug_info contains:/ { read=1 }
/DW_TAG_/ { grab=0 }
/DW_TAG_typedef/ { grab=1 }
/DW_AT_name/ { if (read && grab) { print $0 } }
'
objdump errors on the -W option here (returns -1) so put some
conditional logic in tools/find_typedef and we should be fine.
--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://postgres.enterprisedb.com
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