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bsd-user: Implement dup and dup2 

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Warner Losh 2022-06-12 09:27:19 -06:00
parent 6af8f76a9f
commit a15699acaf
2 changed files with 20 additions and 0 deletions
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12
bsd-user/bsd-file.h
View File

@ -485,4 +485,16 @@ static abi_long do_bsd___getcwd(abi_long arg1, abi_long arg2)
return get_errno(ret);
}
/* dup(2) */
static abi_long do_bsd_dup(abi_long arg1)
{
return get_errno(dup(arg1));
}
/* dup2(2) */
static abi_long do_bsd_dup2(abi_long arg1, abi_long arg2)
{
return get_errno(dup2(arg1, arg2));
}
#endif /* BSD_FILE_H */

8
bsd-user/freebsd/os-syscall.c
View File

@ -349,6 +349,14 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1,
ret = do_bsd___getcwd(arg1, arg2);
break;
case TARGET_FREEBSD_NR_dup: /* dup(2) */
ret = do_bsd_dup(arg1);
break;
case TARGET_FREEBSD_NR_dup2: /* dup2(2) */
ret = do_bsd_dup2(arg1, arg2);
break;
default:
qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
ret = -TARGET_ENOSYS;