https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106283
Bug ID: 106283
Summary: RFE: analyzer handling of close_range and closefrom
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: analyzer
Assignee: dmalcolm at gcc dot gnu.org
Reporter: dmalcolm at gcc dot gnu.org
Blocks: 106003
Target Milestone: ---
As noted here:
https://sourceware.org/pipermail/libc-alpha/2022-July/140623.html
and
https://sourceware.org/pipermail/libc-alpha/2022-July/140624.html
other ways of closing a file-descriptor other than calling "close" are:
close_range:
https://man7.org/linux/man-pages//man2/close_range.2.html
closefrom:
https://man.openbsd.org/closefrom
To e.g. avoid false reports from -Wanalyzer-fd-leak we might as well add
special-case handling for these functions in sm-fd.cc
(consider cases where each endpoint is concrete vs symbolic, and where specific
FDs of interest are concrete vs symbolic)
Probably a low-priority RFE.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106003
[Bug 106003] RFE: -fanalyzer could complain about misuse of file-descriptors
