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b5eede9730
This patch consolidates the poll Linux syscall implementation on sysdeps/unix/sysv/linux/poll.c. It basically removes poll from auto-generation list and add a default implementation that either call __NR_poll directly (if the kernel headers defines it) or ppoll adjusting the timeout argument (as the generic implementation). Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * sysdeps/unix/sysv/linux/generic/poll.c: Remove file. * sysdeps/unix/sysv/linux/poll.c: New file. * sysdeps/unix/sysv/linux/syscalls.list: Remove poll from auto-generation list. |
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|---|---|---|
| .. | ||
| bits | ||
| wordsize-32 | ||
| ____longjmp_chk.c | ||
| brk.c | ||
| chmod.c | ||
| chown.c | ||
| creat.c | ||
| dl-origin.c | ||
| dup2.c | ||
| epoll_create.c | ||
| epoll_wait.c | ||
| futimesat.c | ||
| getdents64.c | ||
| getdents.c | ||
| inotify_init.c | ||
| kernel_stat.h | ||
| lchown.c | ||
| link.c | ||
| lxstat.c | ||
| Makefile | ||
| mkdir.c | ||
| open64.c | ||
| open.c | ||
| pause.c | ||
| pipe.c | ||
| readlink_chk.c | ||
| readlink.c | ||
| README | ||
| rmdir.c | ||
| select.c | ||
| symlink.c | ||
| syscalls.list | ||
| sysctl.c | ||
| sysdep.h | ||
| umount.c | ||
| unlink.c | ||
| ustat.c | ||
| utimes.c | ||
| xmknod.c | ||
| xstat.c | ||
This hierarchy supports Linux systems using the new asm-generic/unistd.h, which removes many familiar old syscalls. For example, to implement open(), newer Linux architectures require glibc to invoke the __NR_openat syscall with AT_FDCWD. This hierarchy provides all those implementations. It also provides support for 32-bit platforms using the 64-bit kernel syscall APIs, as the 32-bit ones are no longer provided. Note that newer ILP32 environments (x32 or AArch64:ILP32, for example) are converting to use more 64-bit types in kernel syscalls, so that aspect of this support is in more flux as of this writing.