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* [Bug c/111025] New: attribute((malloc)) and posix_memalign() (and other functions that return newly allocated object address into an output parameter) @ 2023-08-15 9:47 yann at droneaud dot fr 2023-08-15 13:49 ` [Bug c/111025] " rguenth at gcc dot gnu.org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: yann at droneaud dot fr @ 2023-08-15 9:47 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111025 Bug ID: 111025 Summary: attribute((malloc)) and posix_memalign() (and other functions that return newly allocated object address into an output parameter) Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: yann at droneaud dot fr Target Milestone: --- Functions such as posix_memalign() don't return the pointer to the newly allocated memory as their return value, thus attribute((malloc)) cannot be used with them. It would be useful to have some form of attribute((malloc)) that could apply to function such as posix_memalign(). This new attribute((malloc)) form could also be used on asprintf() for example. With support for the attribute((malloc))'s deallocator specification, it could improve warnings at compile time and prevents developer mistake. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/111025] attribute((malloc)) and posix_memalign() (and other functions that return newly allocated object address into an output parameter) 2023-08-15 9:47 [Bug c/111025] New: attribute((malloc)) and posix_memalign() (and other functions that return newly allocated object address into an output parameter) yann at droneaud dot fr @ 2023-08-15 13:49 ` rguenth at gcc dot gnu.org 2023-08-15 13:50 ` rguenth at gcc dot gnu.org 2023-08-15 16:03 ` pinskia at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2023-08-15 13:49 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111025 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Ever confirmed|0 |1 Status|UNCONFIRMED |NEW Last reconfirmed| |2023-08-15 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- Confirmed. We probably have a duplicate bugreport. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/111025] attribute((malloc)) and posix_memalign() (and other functions that return newly allocated object address into an output parameter) 2023-08-15 9:47 [Bug c/111025] New: attribute((malloc)) and posix_memalign() (and other functions that return newly allocated object address into an output parameter) yann at droneaud dot fr 2023-08-15 13:49 ` [Bug c/111025] " rguenth at gcc dot gnu.org @ 2023-08-15 13:50 ` rguenth at gcc dot gnu.org 2023-08-15 16:03 ` pinskia at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2023-08-15 13:50 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111025 --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- Note GCC already handles this internally (posix_memalign, that is) as if a malloc attribute was possible and present. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/111025] attribute((malloc)) and posix_memalign() (and other functions that return newly allocated object address into an output parameter) 2023-08-15 9:47 [Bug c/111025] New: attribute((malloc)) and posix_memalign() (and other functions that return newly allocated object address into an output parameter) yann at droneaud dot fr 2023-08-15 13:49 ` [Bug c/111025] " rguenth at gcc dot gnu.org 2023-08-15 13:50 ` rguenth at gcc dot gnu.org @ 2023-08-15 16:03 ` pinskia at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2023-08-15 16:03 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111025 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |missed-optimization See Also| |https://gcc.gnu.org/bugzill | |a/show_bug.cgi?id=60086 --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- It was referenced in pr 60086 ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-08-15 16:03 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-08-15 9:47 [Bug c/111025] New: attribute((malloc)) and posix_memalign() (and other functions that return newly allocated object address into an output parameter) yann at droneaud dot fr 2023-08-15 13:49 ` [Bug c/111025] " rguenth at gcc dot gnu.org 2023-08-15 13:50 ` rguenth at gcc dot gnu.org 2023-08-15 16:03 ` pinskia at gcc dot gnu.org
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