bionic/libc/arch-x86/syscalls/__exit.S

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

#include <private/bionic_asm.h>

ENTRY(__exit)
    pushl   %ebx
    .cfi_def_cfa_offset 8
    .cfi_rel_offset ebx, 0
    mov     8(%esp), %ebx
    movl    $__NR_exit, %eax
    int     $0x80
    cmpl    $-MAX_ERRNO, %eax
    jb      1f
    negl    %eax
    pushl   %eax
    call    __set_errno_internal
    addl    $4, %esp
1:
    popl    %ebx
    ret
END(__exit)
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
Fix the exit syscall stub's name. I've left the exit_group syscall as _exit because otherwise we'd have to convince the compiler that our _exit (which just calls __exit_group) is actually "noreturn", and it seems like that would be less clean than just cutting out the middleman. We'll just have to trust ourselves not to add anything to SYSCALLS.TXT that ought to be private but that only has a single leading underscore. Hopefully we can manage that. Change-Id: Iac47faea9f516186e1774381846c54cafabc4354 2013-10-25 07:36:58 +02:00			`ENTRY(__exit)`
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`
auto import from //depot/cupcake/@135843 2009-03-04 04:28:35 +01:00			`mov 8(%esp), %ebx`
			`movl $__NR_exit, %eax`
			`int $0x80`
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`
Fix the exit syscall stub's name. I've left the exit_group syscall as _exit because otherwise we'd have to convince the compiler that our _exit (which just calls __exit_group) is actually "noreturn", and it seems like that would be less clean than just cutting out the middleman. We'll just have to trust ourselves not to add anything to SYSCALLS.TXT that ought to be private but that only has a single leading underscore. Hopefully we can manage that. Change-Id: Iac47faea9f516186e1774381846c54cafabc4354 2013-10-25 07:36:58 +02:00			`END(__exit)`