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tools/nolibc/unistd: extract msleep(), sleep(), tcsetpgrp() to unistd.h

Browse source 
These functions are normally provided by unistd.h. For ease of porting,
let's create the file and move them there.

Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Willy Tarreau 2022-02-07 17:23:49 +01:00 committed by Paul E. McKenney
parent 45a794bf7c
commit 4619de3446
3 changed files with 47 additions and 30 deletions
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1
tools/include/nolibc/nolibc.h
View file

@ -91,6 +91,7 @@
#include "stdio.h"
#include "stdlib.h"
#include "string.h"
#include "unistd.h"
/* Used by programs to avoid std includes */
#define NOLIBC

30
tools/include/nolibc/stdlib.h
View file

@ -300,19 +300,6 @@ char *u64toa(uint64_t in)
return itoa_buffer;
}
static __attribute__((unused))
int msleep(unsigned int msecs)
{
struct timeval my_timeval = { msecs / 1000, (msecs % 1000) * 1000 };
if (sys_select(0, 0, 0, 0, &my_timeval) < 0)
return (my_timeval.tv_sec * 1000) +
(my_timeval.tv_usec / 1000) +
!!(my_timeval.tv_usec % 1000);
else
return 0;
}
/* This one is not marked static as it's needed by libgcc for divide by zero */
__attribute__((weak,unused,section(".text.nolibc_raise")))
int raise(int signal)
@ -320,21 +307,4 @@ int raise(int signal)
return sys_kill(sys_getpid(), signal);
}
static __attribute__((unused))
unsigned int sleep(unsigned int seconds)
{
struct timeval my_timeval = { seconds, 0 };
if (sys_select(0, 0, 0, 0, &my_timeval) < 0)
return my_timeval.tv_sec + !!my_timeval.tv_usec;
else
return 0;
}
static __attribute__((unused))
int tcsetpgrp(int fd, pid_t pid)
{
return ioctl(fd, TIOCSPGRP, &pid);
}
#endif /* _NOLIBC_STDLIB_H */

46
tools/include/nolibc/unistd.h Normal file
View file

@ -0,0 +1,46 @@
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
/*
* unistd function definitions for NOLIBC
* Copyright (C) 2017-2022 Willy Tarreau <w@1wt.eu>
*/
#ifndef _NOLIBC_UNISTD_H
#define _NOLIBC_UNISTD_H
#include "std.h"
#include "arch.h"
#include "types.h"
#include "sys.h"
static __attribute__((unused))
int msleep(unsigned int msecs)
{
struct timeval my_timeval = { msecs / 1000, (msecs % 1000) * 1000 };
if (sys_select(0, 0, 0, 0, &my_timeval) < 0)
return (my_timeval.tv_sec * 1000) +
(my_timeval.tv_usec / 1000) +
!!(my_timeval.tv_usec % 1000);
else
return 0;
}
static __attribute__((unused))
unsigned int sleep(unsigned int seconds)
{
struct timeval my_timeval = { seconds, 0 };
if (sys_select(0, 0, 0, 0, &my_timeval) < 0)
return my_timeval.tv_sec + !!my_timeval.tv_usec;
else
return 0;
}
static __attribute__((unused))
int tcsetpgrp(int fd, pid_t pid)
{
return ioctl(fd, TIOCSPGRP, &pid);
}
#endif /* _NOLIBC_UNISTD_H */