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071af4769f
This patch consolidates all the pwrite/pwrite64 implementation for Linux
in only one (sysdeps/unix/sysv/linux/pwrite{64}.c). It also removes the
syscall from the auto-generation using assembly macros.
For pwrite{64} offset argument placement the new SYSCALL_LL{64} macro
is used. For pwrite ports that do not define __NR_pwrite will use
__NR_pwrite64 and for pwrite64 ports that dot define __NR_pwrite64 will
use __NR_pwrite for the syscall.
Checked on x86_64, x32, i386, aarch64, and ppc64le.
* sysdeps/unix/sysv/linux/arm/pwrite.c: Remove file.
* sysdeps/unix/sysv/linux/arm/pwrite64.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/pwrite.c: Likewise.
* sysdeps/unix/sysv/linux/generic/wordsize-32/pwrite64.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/pwrite.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/pwrite64.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/pwrite64.c: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list (prite): Remove
syscalls generation.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h
[__NR_pwrite64] (__NR_write): Remove define.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h
[__NR_pwrite64] (__NR_write): Remove define.
* sysdeps/unix/sysv/linux/pwrite.c [__NR_pwrite64] (__NR_pwrite):
Remove define.
(__libc_pwrite): Use SYSCALL_LL macro on offset argument.
* sysdeps/unix/sysv/linux/pwrite64.c [__NR_pwrite64] (__NR_pwrite):
Remove define.
(__libc_pwrite64): Use SYSCALL_LL64 macro on offset argument.
* sysdeps/unix/sysv/linux/sh/pwrite.c: Rewrite using default
Linux implementation as base.
* sysdeps/unix/sysv/linux/sh/pwrite64.c: Likewise.
* sysdeps/unix/sysv/linux/mips/pwrite.c: Likewise.
* sysdeps/unix/sysv/linux/mips/pwrite64.c: Likewise.
|
||
|---|---|---|
| .. | ||
| bits | ||
| wordsize-32 | ||
| ____longjmp_chk.c | ||
| access.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 | ||
| poll.c | ||
| readlink_chk.c | ||
| readlink.c | ||
| README | ||
| recv.c | ||
| rename.c | ||
| rmdir.c | ||
| select.c | ||
| send.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.