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Emit dummy statements for probes.d probes when disabled

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When building without --enable-dtrace, emit dummy

    do {} while (0)

statements for the stubbed-out TRACE_POSTGRESQL_foo() macros
instead of empty macros that totally elide the original probe
statement.

This fixes the

    warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]

introduced by b94409a02f.

Author: Craig Ringer <craig.ringer@2ndquadrant.com>
Discussion: https://www.postgresql.org/message-id/flat/20210504221531.cfvpmmdfsou6eitb%40alap3.anarazel.de
This commit is contained in:
Peter Eisentraut 2021-05-10 11:36:26 +02:00
parent 3c55410030
commit fa8fbadb93
2 changed files with 7 additions and 0 deletions
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6
src/backend/utils/Gen_dummy_probes.pl
View File

@ -135,6 +135,12 @@ sub Run()
$CondReg ||= $s;
}
# s/$/ do {} while (0)/
{
$s = s /$/ do {} while (0)/s;
$CondReg ||= $s;
}
# P
{
if (/^(.*)/) { print $1, "\n"; }

1
src/backend/utils/Gen_dummy_probes.sed
View File

@ -19,5 +19,6 @@ s/([^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\})/(INT1, INT2,
s/([^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\})/(INT1, INT2, INT3, INT4, INT5, INT6)/
s/([^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\})/(INT1, INT2, INT3, INT4, INT5, INT6, INT7)/
s/([^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\}, [^,)]\{1,\})/(INT1, INT2, INT3, INT4, INT5, INT6, INT7, INT8)/
s/$/ do {} while (0)/
P
s/(.*$/_ENABLED() (0)/