[PATCH v2 5/7] perf trace beauty: Add syscalltbl.sh generating all system call tables
David Laight
david.laight.linux at gmail.com
Wed Feb 12 05:59:19 PST 2025
On Tue, 11 Feb 2025 18:53:14 +0100
"Arnd Bergmann" <arnd at arndb.de> wrote:
...
> I think the way it actually works on mips is that all syscalls are
> allowed in any task and the actual number identifies both the
> ABI and the syscall. In some variant, the same is true on arm
> (oabi/eabi) and x86-64 (64/x32), but oabi and x32 are both too
> obsolete to put much work into them.
IIRC x86-64 processes can also just make i386 system calls.
Even switching to/from 64bit mode isn't privileged.
David
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