platform_bionic/libc/arch-x86/syscalls/chdir.S

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

#include <private/bionic_asm.h>

ENTRY(chdir)
    pushl   %ebx
    .cfi_def_cfa_offset 8
    .cfi_rel_offset ebx, 0

    call    __kernel_syscall
    pushl   %eax
    .cfi_adjust_cfa_offset 4
    .cfi_rel_offset eax, 0

    mov     12(%esp), %ebx
    movl    $__NR_chdir, %eax
    call    *(%esp)
    addl    $4, %esp

    cmpl    $-MAX_ERRNO, %eax
    jb      1f
    negl    %eax
    pushl   %eax
    call    __set_errno_internal
    addl    $4, %esp
1:
    popl    %ebx
    ret
END(chdir)
Sort the syscalls.mk files, give all generated files the same header. No non-comment changes to the .S files. Change-Id: Iafcfd004c3ea92b64268f80ab16df615b97cefac 2013-10-16 23:27:59 +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>`
auto import from //depot/cupcake/@135843 2009-03-04 04:28:35 +01:00
Switch x86 syscall stubs over to the ENTER/END style of the ARM stubs. Also update the x86 asm.h to support this; we need it for libm assembler anyway. Also clean up the _FBSDID hack in <sys/cdefs.h>. Change-Id: Iababd977b8110ec022bf7c93f4d62ece47630e7c 2013-02-07 02:08:15 +01:00			`ENTRY(chdir)`
auto import from //depot/cupcake/@135843 2009-03-04 04:28:35 +01:00			`pushl %ebx`
Fix x86 cfi directives for syscalls. The syscall generation always used 4 bytes for each push cfi directive. However, the first push should always use an offset of 8 bytes, each subsequent push after that is only 4 bytes though. Change-Id: Ibaabd107f399ef67010b9a08213783957c2f74a9 2014-05-30 03:17:09 +02:00			`.cfi_def_cfa_offset 8`
Add cfi directives to x86 syscalls. Modify the syscalls script to generate the cfi directives for x86 syscalls. Update the x86 syscalls. Change-Id: Ia1993dc714a7e79f917087fff8200e9a02c52603 2014-01-07 01:39:10 +01:00			`.cfi_rel_offset ebx, 0`
libc: implement kernel vdso syscalls for i386 This patch uses __kernel_vsyscall instead of "int 0x80" as the syscall entry point. AT_SYSINFO points to an adapter to mask the arch specific difference and gives a performance boost on i386 architecture. Change-ID: Ib340c604d02c6c25714a95793737e3cfdc3fc5d7 Signed-off-by: Mingwei Shi <mingwei.shi@intel.com> 2015-11-12 08:02:14 +01:00
			`call __kernel_syscall`
			`pushl %eax`
			`.cfi_adjust_cfa_offset 4`
			`.cfi_rel_offset eax, 0`

			`mov 12(%esp), %ebx`
auto import from //depot/cupcake/@135843 2009-03-04 04:28:35 +01:00			`movl $__NR_chdir, %eax`
libc: implement kernel vdso syscalls for i386 This patch uses __kernel_vsyscall instead of "int 0x80" as the syscall entry point. AT_SYSINFO points to an adapter to mask the arch specific difference and gives a performance boost on i386 architecture. Change-ID: Ib340c604d02c6c25714a95793737e3cfdc3fc5d7 Signed-off-by: Mingwei Shi <mingwei.shi@intel.com> 2015-11-12 08:02:14 +01:00			`call *(%esp)`
			`addl $4, %esp`

Use the kernel's MAX_ERRNO in the syscall stubs. Bug: http://code.google.com/p/android/issues/detail?id=53104 Change-Id: Iaabf7025b153e96dc5eca231a33a32d4cb7d8116 2013-03-12 22:57:30 +01:00			`cmpl $-MAX_ERRNO, %eax`
auto import from //depot/cupcake/@135843 2009-03-04 04:28:35 +01:00			`jb 1f`
			`negl %eax`
			`pushl %eax`
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. Bug: 17423135 Change-Id: I6b6d7a05dda85f923d22e5ffd169a91e23499b7b 2014-09-09 00:25:01 +02:00			`call __set_errno_internal`
auto import from //depot/cupcake/@135843 2009-03-04 04:28:35 +01:00			`addl $4, %esp`
			`1:`
			`popl %ebx`
			`ret`
Switch x86 syscall stubs over to the ENTER/END style of the ARM stubs. Also update the x86 asm.h to support this; we need it for libm assembler anyway. Also clean up the _FBSDID hack in <sys/cdefs.h>. Change-Id: Iababd977b8110ec022bf7c93f4d62ece47630e7c 2013-02-07 02:08:15 +01:00			`END(chdir)`