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Add signalfd call to bionic

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Add signalfd() call to bionic.

Adding the signalfd call was done in 3 steps:
- add signalfd4 system call (function name and syscall
  number) to libc/SYSCALLS.TXT
- generate all necessary headers by calling
  libc/tools/gensyscalls.py. This patch is adding
  the generated files since the build system
  does not call gensyscalls.py.
- create the signalfd wrapper in signalfd.cpp and add
  the function prototype to sys/signalfd.h

(cherry-pick of 0c11611c11, modified to
work with older versions of GCC still in use on some branches.)

Change-Id: I4c6c3f12199559af8be63f93a5336851b7e63355
This commit is contained in:
Rom Lemarchand
2013-01-09 15:46:06 -08:00
committed by Elliott Hughes
parent 364d9ee62f
commit a4b2dc016f
12 changed files with 223 additions and 0 deletions
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51
libc/kernel/common/linux/signalfd.h Normal file
View File

@@ -0,0 +1,51 @@
/****************************************************************************
****************************************************************************
***
*** This header was automatically generated from a Linux kernel header
*** of the same name, to make information necessary for userspace to
*** call into the kernel available to libc. It contains only constants,
*** structures, and macros generated from the original header, and thus,
*** contains no copyrightable information.
***
*** To edit the content of this header, modify the corresponding
*** source file (e.g. under external/kernel-headers/original/) then
*** run bionic/libc/kernel/tools/update_all.py
***
*** Any manual change here will be lost the next time this script will
*** be run. You've been warned!
***
****************************************************************************
****************************************************************************/
#ifndef _LINUX_SIGNALFD_H
#define _LINUX_SIGNALFD_H
#include <linux/types.h>
#include <linux/fcntl.h>
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
#define SFD_CLOEXEC O_CLOEXEC
#define SFD_NONBLOCK O_NONBLOCK
struct signalfd_siginfo {
__u32 ssi_signo;
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
__s32 ssi_errno;
__s32 ssi_code;
__u32 ssi_pid;
__u32 ssi_uid;
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
__s32 ssi_fd;
__u32 ssi_tid;
__u32 ssi_band;
__u32 ssi_overrun;
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
__u32 ssi_trapno;
__s32 ssi_status;
__s32 ssi_int;
__u64 ssi_ptr;
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
__u64 ssi_utime;
__u64 ssi_stime;
__u64 ssi_addr;
__u16 ssi_addr_lsb;
/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
__u8 __pad[46];
};
#endif