platform_bionic/libc/arch-arm64/syscalls/write.S

/* Generated by gensyscalls.py. Do not edit. */

#include <private/bionic_asm.h>

ENTRY(write)
    mov     x8, __NR_write
    svc     #0

    cmn     x0, #(MAX_ERRNO + 1)
    cneg    x0, x0, hi
    b.hi    __set_errno_internal

    ret
END(write)
AArch64: Autogenerated syscalls for AArch64 This patch adds AArch64 syscalls, autogenerated using: ./libc/tools/gensyscalls.py Change-Id: I1cc60430423ecb52a35448bf2c358b82136b2f16 Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com> 2013-10-11 00:05:06 +02:00			`/* Generated by gensyscalls.py. Do not edit. */`

Stop using the non-uapi <linux/err.h> header file. We only need it for MAX_ERRNO, and it's time we had somewhere to put the little assembler utility macros we've been putting off writing. Change-Id: I9354d2e0dc47c689296a34b5b229fc9ba75f1a83 2013-11-07 19:31:05 +01:00			`#include <private/bionic_asm.h>`
AArch64: Autogenerated syscalls for AArch64 This patch adds AArch64 syscalls, autogenerated using: ./libc/tools/gensyscalls.py Change-Id: I1cc60430423ecb52a35448bf2c358b82136b2f16 Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com> 2013-10-11 00:05:06 +02:00
			`ENTRY(write)`
			`mov x8, __NR_write`
			`svc #0`

			`cmn x0, #(MAX_ERRNO + 1)`
			`cneg x0, x0, hi`
Ensure __set_errno is still visible on LP32. The use of the .hidden directive to avoid going via the PLT for __set_errno had the side-effect of actually making __set_errno hidden (which is odd because assembler directives don't usually affect symbols defined in a different file --- you can't even create a weak reference to a symbol that's defined in a different file). This change switches the system call stubs over to a new always-hidden __set_errno_internal and has a visible __set_errno on LP32 just for binary compatibility with old NDK apps. (cherry-pick of 7efad83d430f4d824f2aaa75edea5106f6ff8aae.) Bug: 17423135 Change-Id: I6b6d7a05dda85f923d22e5ffd169a91e23499b7b 2014-09-09 00:25:01 +02:00			`b.hi __set_errno_internal`
AArch64: Autogenerated syscalls for AArch64 This patch adds AArch64 syscalls, autogenerated using: ./libc/tools/gensyscalls.py Change-Id: I1cc60430423ecb52a35448bf2c358b82136b2f16 Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com> 2013-10-11 00:05:06 +02:00
			`ret`
			`END(write)`