54 lines
1.8 KiB
Bash
Executable File
54 lines
1.8 KiB
Bash
Executable File
#!/bin/sh
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# src/tools/find_typedef
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# This script attempts to find all typedef's in the postgres binaries
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# by using 'objdump' or local equivalent to print typedef debugging symbols.
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# We need this because pgindent needs a list of typedef names.
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#
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# For this program to work, you must have compiled all code with
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# debugging symbols.
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#
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# We intentionally examine all files in the targeted directories so as to
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# find both .o files and executables. Therefore, ignore error messages about
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# unsuitable files being fed to objdump.
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#
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# This is known to work on Linux and on some BSDen, including macOS.
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#
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# Caution: on the platforms we use, this only prints typedefs that are used
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# to declare at least one variable or struct field. If you have say
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# "typedef struct foo { ... } foo;", and then the structure is only ever
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# referenced as "struct foo", "foo" will not be reported as a typedef,
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# causing pgindent to indent the typedef definition oddly. This is not a
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# huge problem, since by definition there's just the one misindented line.
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#
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# We get typedefs by reading "STABS":
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# http://www.informatik.uni-frankfurt.de/doc/texi/stabs_toc.html
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if [ "$#" -eq 0 -o ! -d "$1" ]
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then echo "Usage: $0 postgres_binary_directory [...]" 1>&2
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exit 1
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fi
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for DIR
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do # if objdump -W is recognized, only one line of error should appear
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if [ `objdump -W 2>&1 | wc -l` -eq 1 ]
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then # Linux
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objdump -W "$DIR"/* |
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egrep -A3 '\(DW_TAG_typedef\)' |
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awk ' $2 == "DW_AT_name" {print $NF}'
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elif [ `readelf -w 2>&1 | wc -l` -gt 1 ]
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then # FreeBSD, similar output to Linux
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readelf -w "$DIR"/* |
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egrep -A3 '\(DW_TAG_typedef\)' |
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awk ' $1 == "DW_AT_name" {print $NF}'
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fi
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done |
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grep -v ' ' | # some typedefs have spaces, remove them
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sort |
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uniq |
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# these are used both for typedefs and variable names
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# so do not include them
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egrep -v '^(date|interval|timestamp|ANY)$'
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