Messages in this thread | | | Subject | Re: [PATCH] Complain about missing system calls. | From | Andi Kleen <> | Date | 09 Mar 2007 17:11:10 +0100 |
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David Woodhouse <dwmw2@infradead.org> writes:
> Most system calls seem to get added to i386 first. This patch > automatically generates a warning for any new system call which is > implemented on i386 but not the architecture currently being compiled. > On PowerPC at the moment, for example, it results in these warnings: > init/missing_syscalls.h:935:3: warning: #warning syscall sync_file_range not implemented > init/missing_syscalls.h:947:3: warning: #warning syscall getcpu not implemented > init/missing_syscalls.h:950:3: warning: #warning syscall epoll_pwait not implemented
I think a better solution would be to finally switch to auto generated system call tables for newer system calls. The original reason why the architectures have different system call numbers -- compatibility with another "native" Unix -- is completely obsolete now. This leaves only minor differences of compat stub vs non compat stub and a few architecture specific calls.
Of course the existing syscall numbers can't be changed, but for all new calls one could just add automatically for everybody.
A global table with two entries (compat and non compat) and a per arch override table should be sufficient.
Comments?
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