https://bugs.kde.org/show_bug.cgi?id=493433
Bug ID: 493433
Summary: Add a new fds only mode to --track-fds
Classification: Developer tools
Product: valgrind
Version: 3.22 GIT
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: jsew...@acm.org
Reporter: m...@klomp.org
CC: ahajk...@redhat.com
Target Milestone: ---
Normally a newly recreated file descriptor gets the lowest available number.
This might cause old file descriptor numbers to be reused and hides bad file
descriptor accesses (because the old number is new again).
It would be nice to have a mode where valgrind makes sure new file descriptors
always get a new, not yet used before number. This might be implemented by
making record_fd_open* return a new file descriptor (by dupping the given file
descriptor only a higher never used before number and closing the one returned
from the kernel) and returning that to the application.
We might have to make an exception for file descriptors 0, 1, 2 which programs
might explicitly want to reassign.
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