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The generic syscall table has different names for syscalls that take a
timespec64 on 32-bit targets, in that it adds the `_time64` suffix.
Similarly, the `_time32` suffix has been removed.
I'm not sure if the existing logic for determining the proper timespec
struct to use was subtly broken, but it should be a good chance to
finish #4726 - we only have 12 years after all...
As for the changes since 6.11..6.16:
6.11:
- x86_64 gets `uretprobe`, a syscall to speed up returning BPF probes.
- Hexagon gets `clone3`, but don't be fooled: it just returns ENOSYS.
6.13:
- The `*xattr` family of syscalls have been enhanced with new `*xattrat`
versions, similar to the other file-based `at` calls.
6.15:
- Atomically create a detached mount tree and set mount options on it.
Finally, this commit also adds the syscall numbers for OpenRISC and maps
it to the `or1k` cpu.
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Also update the syscalls file based on Linux 6.10. No diffs other than x32.
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loongarch64 syscalls not updated because it seems like that kernel port hasn't
been working for a year or so:
In file included from arch/loongarch/include/uapi/asm/unistd.h:5:
include/uapi/asm-generic/unistd.h:2:10: fatal error: 'asm/bitsperlong.h' file not found
That file is just missing from the tree. :shrug:
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This release adds the rest of the futex2[1] syscalls, along with
shadow stack[2] support for more architectures.
[1]: https://lwn.net/Articles/940944/
[2]: https://lwn.net/Articles/926649/
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This syscall was added to simplify the the libc implementations of
fchmodat, as the original syscall does not take a `flags` argument.
Another syscall, `map_shadow_stack`, was also added for x86_64.
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The latest addition is `cachestat`, which provides more detailed
information for paged files.
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Follow up for #14541.
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New changes: memfd_secret implemented for RISC-V.
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Previously, updating the `SYS` enum for each architecture required
manually looking at the syscall tables and inserting any new additions.
This commit adds a tool, `generate_linux_syscalls.zig`, that automates
this process using the syscall tables in the Linux source tree. On
architectures without a table, it runs `zig cc` as a pre-processor to
extract the system-call numbers from the Linux headers.
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