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Re: [PATCH 07/15] Use semget syscall for Linux implementation
On Tue, 1 Nov 2016, Andreas Schwab wrote:
> On Nov 01 2016, Adhemerval Zanella <firstname.lastname@example.org> wrote:
> > This patch add a direct call to semget syscall if it is defined by
> > kernel headers.
> That does not mean that the running kernel provides it.
Specifically, this sort of patch series needs to be accompanied by an
analysis of when the relevant syscalls were added for each supported
architecture (and subarchitecture for cases with multiple syscall tables
for different ABNs). If present (in the syscall table as well as in
asm/unistd.h) in the minimum kernel version, OK, otherwise you need
appropriate __ASSUME_* conditionals (even if not present in the latest
kernel, it might be added in future, so you should have those conditionals
now to avoid breaking things when current glibc is compiled with future
Joseph S. Myers