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linux-user: Add close_range() syscall 

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <Y1dLJoEDhJ2AAYDn@p100>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
master
Helge Deller 2022-10-25 04:34:14 +02:00 committed by Laurent Vivier
parent dcd86148e2
commit af804f39cc
2 changed files with 22 additions and 0 deletions
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3
linux-user/strace.list
View File

@ -103,6 +103,9 @@
#ifdef TARGET_NR_close
{ TARGET_NR_close, "close" , "%s(%d)", NULL, NULL },
#endif
#ifdef TARGET_NR_close_range
{ TARGET_NR_close_range, "close_range" , "%s(%u,%u,%u)", NULL, NULL },
#endif
#ifdef TARGET_NR_connect
{ TARGET_NR_connect, "connect" , "%s(%d,%#x,%d)", NULL, NULL },
#endif

19
linux-user/syscall.c
View File

@ -364,6 +364,13 @@ _syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
#ifdef __NR_exit_group
_syscall1(int,exit_group,int,error_code)
#endif
#if defined(__NR_close_range) && defined(TARGET_NR_close_range)
#define __NR_sys_close_range __NR_close_range
_syscall3(int,sys_close_range,int,first,int,last,int,flags)
#ifndef CLOSE_RANGE_CLOEXEC
#define CLOSE_RANGE_CLOEXEC (1U << 2)
#endif
#endif
#if defined(__NR_futex)
_syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
const struct timespec *,timeout,int *,uaddr2,int,val3)
@ -8756,6 +8763,18 @@ static abi_long do_syscall1(CPUArchState *cpu_env, int num, abi_long arg1,
case TARGET_NR_close:
fd_trans_unregister(arg1);
return get_errno(close(arg1));
#if defined(__NR_close_range) && defined(TARGET_NR_close_range)
case TARGET_NR_close_range:
ret = get_errno(sys_close_range(arg1, arg2, arg3));
if (ret == 0 && !(arg3 & CLOSE_RANGE_CLOEXEC)) {
abi_long fd, maxfd;
maxfd = MIN(arg2, target_fd_max);
for (fd = arg1; fd < maxfd; fd++) {
fd_trans_unregister(fd);
}
}
return ret;
#endif
case TARGET_NR_brk:
return do_brk(arg1);