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Merge pull request #16761 from keszybz/missing-syscall-cleanup

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Missing syscall cleanup
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2020-08-18 10:01:19 +02:00 committed by GitHub
commit 170a8c365b
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1 changed files with 43 additions and 27 deletions
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70
src/basic/missing_syscall.h
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@ -515,7 +515,7 @@ static inline long missing_get_mempolicy(int *mode, unsigned long *nodemask,
unsigned long maxnode, void *addr,
unsigned long flags) {
long i;
# ifdef __NR_get_mempolicy
# if defined __NR_get_mempolicy && __NR_get_mempolicy >= 0
i = syscall(__NR_get_mempolicy, mode, nodemask, maxnode, addr, flags);
# else
errno = ENOSYS;
@ -524,25 +524,7 @@ static inline long missing_get_mempolicy(int *mode, unsigned long *nodemask,
return i;
}
#define get_mempolicy missing_get_mempolicy
#endif
#if !HAVE_PIDFD_OPEN
/* may be (invalid) negative number due to libseccomp, see PR 13319 */
# if ! (defined __NR_pidfd_open && __NR_pidfd_open >= 0)
# if defined __NR_pidfd_open
# undef __NR_pidfd_open
# endif
# define __NR_pidfd_open 434
#endif
static inline int pidfd_open(pid_t pid, unsigned flags) {
#ifdef __NR_pidfd_open
return syscall(__NR_pidfd_open, pid, flags);
#else
errno = ENOSYS;
return -1;
#endif
}
# define get_mempolicy missing_get_mempolicy
#endif
#if !HAVE_PIDFD_SEND_SIGNAL
@ -551,20 +533,54 @@ static inline int pidfd_open(pid_t pid, unsigned flags) {
# if defined __NR_pidfd_send_signal
# undef __NR_pidfd_send_signal
# endif
# define __NR_pidfd_send_signal 424
#endif
static inline int pidfd_send_signal(int fd, int sig, siginfo_t *info, unsigned flags) {
#ifdef __NR_pidfd_open
/* should be always defined, see kernel 39036cd2727395c3369b1051005da74059a85317 */
# if defined(__alpha__)
# define __NR_pidfd_send_signal 534
# else
# define __NR_pidfd_send_signal 424
# endif
# endif
static inline int missing_pidfd_send_signal(int fd, int sig, siginfo_t *info, unsigned flags) {
# ifdef __NR_pidfd_open
return syscall(__NR_pidfd_send_signal, fd, sig, info, flags);
#else
# else
errno = ENOSYS;
return -1;
#endif
# endif
}
# define pidfd_send_signal missing_pidfd_send_signal
#endif
#if !HAVE_PIDFD_OPEN
/* may be (invalid) negative number due to libseccomp, see PR 13319 */
# if ! (defined __NR_pidfd_open && __NR_pidfd_open >= 0)
# if defined __NR_pidfd_open
# undef __NR_pidfd_open
# endif
/* should be always defined, see kernel 7615d9e1780e26e0178c93c55b73309a5dc093d7 */
# if defined(__alpha__)
# define __NR_pidfd_open 544
# else
# define __NR_pidfd_open 434
# endif
# endif
static inline int missing_pidfd_open(pid_t pid, unsigned flags) {
# ifdef __NR_pidfd_open
return syscall(__NR_pidfd_open, pid, flags);
# else
errno = ENOSYS;
return -1;
# endif
}
# define pidfd_open missing_pidfd_open
#endif
#if !HAVE_RT_SIGQUEUEINFO
static inline int rt_sigqueueinfo(pid_t tgid, int sig, siginfo_t *info) {
static inline int missing_rt_sigqueueinfo(pid_t tgid, int sig, siginfo_t *info) {
return syscall(__NR_rt_sigqueueinfo, tgid, sig, info);
}
# define rt_sigqueueinfo missing_rt_sigqueueinfo
#endif