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authorAlvaro Herrera <alvherre@alvh.no-ip.org>2019-11-08 15:44:20 -0300
committerAlvaro Herrera <alvherre@alvh.no-ip.org>2019-11-08 15:44:20 -0300
commit71a8a4f6e36547bb060dbcc961ea9b57420f7190 (patch)
tree3abd0dc46c18cc7400933fb2ef3f19d3e8f3f28a /doc/src
parent3dcffb381c81c9c8f8254100feacac256b9e75a6 (diff)
downloadpostgresql-71a8a4f6e36547bb060dbcc961ea9b57420f7190.tar.gz
postgresql-71a8a4f6e36547bb060dbcc961ea9b57420f7190.zip
Add backtrace support for error reporting
Add some support for automatically showing backtraces in certain error situations in the server. Backtraces are shown on assertion failure; also, a new setting backtrace_functions can be set to a list of C function names, and all ereport()s and elog()s from the mentioned functions will have backtraces generated. Finally, the function errbacktrace() can be manually added to an ereport() call to generate a backtrace for that call. Authors: Peter Eisentraut, Álvaro Herrera Discussion: https://postgr.es/m//5f48cb47-bf1e-05b6-7aae-3bf2cd01586d@2ndquadrant.com Discussion: https://postgr.es/m/CAMsr+YGL+yfWE=JvbUbnpWtrRZNey7hJ07+zT4bYJdVp4Szdrg@mail.gmail.com
Diffstat (limited to 'doc/src')
-rw-r--r--doc/src/sgml/config.sgml26
1 files changed, 26 insertions, 0 deletions
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 46bc31de4c4..a0e1925a197 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -9489,6 +9489,32 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
</listitem>
</varlistentry>
+ <varlistentry id="guc-backtrace-functions" xreflabel="backtrace_functions">
+ <term><varname>backtrace_functions</varname> (<type>string</type>)
+ <indexterm>
+ <primary><varname>backtrace_functions</varname> configuration parameter</primary>
+ </indexterm>
+ </term>
+ <listitem>
+ <para>
+ This parameter contains a comma-separated list of C function names.
+ If an error is raised and the name of the internal C function where
+ the error happens matches a value in the list, then a backtrace is
+ written to the server log together with the error message. This can
+ be used to debug specific areas of the source code.
+ </para>
+
+ <para>
+ Backtrace support is not available on all platforms, and the quality
+ of the backtraces depends on compilation options.
+ </para>
+
+ <para>
+ This parameter can only be set by superusers.
+ </para>
+ </listitem>
+ </varlistentry>
+
<varlistentry id="guc-ignore-system-indexes" xreflabel="ignore_system_indexes">
<term><varname>ignore_system_indexes</varname> (<type>boolean</type>)
<indexterm>