From: "Paul E. McKenney" <[email protected]>
To: [email protected]
Cc: [email protected], [email protected], [email protected],
Willy Tarreau <[email protected]>,
"Paul E . McKenney" <[email protected]>
Subject: [PATCH nolibc 40/61] tools/nolibc/time: create time.h with time()
Date: Mon, 18 Apr 2022 17:42:04 -0700 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <20220419004219.GA3952301@paulmck-ThinkPad-P17-Gen-1>
From: Willy Tarreau <[email protected]>
The time() syscall is used by a few simple applications, and is trivial
to implement based on gettimeofday() that we already have. Let's create
the file to ease porting and provide the function. It never returns any
error, though it may segfault in case of invalid pointer, like other
implementations relying on gettimeofday().
Signed-off-by: Willy Tarreau <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
---
tools/include/nolibc/nolibc.h | 1 +
tools/include/nolibc/time.h | 28 ++++++++++++++++++++++++++++
2 files changed, 29 insertions(+)
create mode 100644 tools/include/nolibc/time.h
diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h
index 0f375e901a36..561dcdb83cee 100644
--- a/tools/include/nolibc/nolibc.h
+++ b/tools/include/nolibc/nolibc.h
@@ -92,6 +92,7 @@
#include "stdio.h"
#include "stdlib.h"
#include "string.h"
+#include "time.h"
#include "unistd.h"
/* Used by programs to avoid std includes */
diff --git a/tools/include/nolibc/time.h b/tools/include/nolibc/time.h
new file mode 100644
index 000000000000..d18b7661fdd7
--- /dev/null
+++ b/tools/include/nolibc/time.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * time function definitions for NOLIBC
+ * Copyright (C) 2017-2022 Willy Tarreau <[email protected]>
+ */
+
+#ifndef _NOLIBC_TIME_H
+#define _NOLIBC_TIME_H
+
+#include "std.h"
+#include "arch.h"
+#include "types.h"
+#include "sys.h"
+
+static __attribute__((unused))
+time_t time(time_t *tptr)
+{
+ struct timeval tv;
+
+ /* note, cannot fail here */
+ sys_gettimeofday(&tv, NULL);
+
+ if (tptr)
+ *tptr = tv.tv_sec;
+ return tv.tv_sec;
+}
+
+#endif /* _NOLIBC_TIME_H */
--
2.31.1.189.g2e36527f23
next prev parent reply other threads:[~2022-04-19 0:42 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-19 0:42 [PATCH nolibc 0/61] nolibc updates for v5.19 Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 01/61] tools/nolibc: use pselect6 on RISCV Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 02/61] tools/nolibc: guard the main file against multiple inclusion Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 03/61] tools/nolibc/std: move the standard type definitions to std.h Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 04/61] tools/nolibc/types: split syscall-specific definitions into their own files Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 05/61] tools/nolibc/arch: split arch-specific code into individual files Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 06/61] tools/nolibc/sys: split the syscall definitions into their own file Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 07/61] tools/nolibc/stdlib: extract the stdlib-specific functions to " Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 08/61] tools/nolibc/string: split the string functions into string.h Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 09/61] tools/nolibc/ctype: split the is* functions to ctype.h Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 10/61] tools/nolibc/ctype: add the missing is* functions Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 11/61] tools/nolibc/types: move the FD_* functions to macros in types.h Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 12/61] tools/nolibc/types: make FD_SETSIZE configurable Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 13/61] tools/nolibc/types: move makedev to types.h and make it a macro Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 14/61] tools/nolibc/stdlib: move ltoa() to stdlib.h Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 15/61] tools/nolibc/stdlib: replace the ltoa() function with more efficient ones Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 16/61] tools/nolibc/stdlib: add i64toa() and u64toa() Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 17/61] tools/nolibc/stdlib: add utoh() and u64toh() Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 18/61] tools/nolibc/stdio: add a minimal set of stdio functions Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 19/61] tools/nolibc/stdio: add stdin/stdout/stderr and fget*/fput* functions Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 20/61] tools/nolibc/stdio: add fwrite() to stdio Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 21/61] tools/nolibc/stdio: add a minimal [vf]printf() implementation Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 22/61] tools/nolibc/types: define EXIT_SUCCESS and EXIT_FAILURE Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 23/61] tools/nolibc/stdio: add perror() to report the errno value Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 24/61] tools/nolibc/sys: make open() take a vararg on the 3rd argument Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 25/61] tools/nolibc/stdlib: avoid a 64-bit shift in u64toh_r() Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 26/61] tools/nolibc/stdlib: make raise() use the lower level syscalls only Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 27/61] tools/nolibc/sys: make getpgrp(), getpid(), gettid() not set errno Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 28/61] tools/nolibc/string: use unidirectional variants for memcpy() Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 29/61] tools/nolibc/string: slightly simplify memmove() Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 30/61] tools/nolibc/string: add strncpy() and strlcpy() Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 31/61] tools/nolibc/string: add tiny versions of strncat() and strlcat() Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 32/61] tools/nolibc: move exported functions to their own section Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 33/61] tools/nolibc/arch: mark the _start symbol as weak Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 34/61] tools/nolibc/types: define PATH_MAX and MAXPATHLEN Paul E. McKenney
2022-04-19 0:41 ` [PATCH nolibc 35/61] tools/nolibc/string: export memset() and memmove() Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 36/61] tools/nolibc/errno: extract errno.h from sys.h Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 37/61] tools/nolibc/unistd: extract msleep(), sleep(), tcsetpgrp() to unistd.h Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 38/61] tools/nolibc/unistd: add usleep() Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 39/61] tools/nolibc/signal: move raise() to signal.h Paul E. McKenney
2022-04-19 0:42 ` Paul E. McKenney [this message]
2022-04-19 0:42 ` [PATCH nolibc 41/61] tools/nolibc: also mention how to build by just setting the include path Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 42/61] tools/nolibc/stdlib: implement abort() Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 43/61] tools/nolibc/stdio: make printf(%s) accept NULL Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 44/61] tools/nolibc/stdlib: add a simple getenv() implementation Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 45/61] tools/nolibc/stdio: add support for '%p' to vfprintf() Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 46/61] tools/nolibc/string: add strcmp() and strncmp() Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 47/61] tools/nolibc/sys: add syscall definition for getppid() Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 48/61] tools/nolibc/types: add poll() and waitpid() flag definitions Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 49/61] tools/nolibc: add a makefile to install headers Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 50/61] tools/nolibc: add the nolibc subdir to the common Makefile Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 51/61] tools/nolibc/string: do not use __builtin_strlen() at -O0 Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 52/61] tools/nolibc/stdlib: only reference the external environ when inlined Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 53/61] tools/nolibc: x86-64: Update System V ABI document link Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 54/61] tools/nolibc: Replace `asm` with `__asm__` Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 55/61] tools/nolibc: Remove .global _start from the entry point code Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 56/61] tools/nolibc: i386: Implement syscall with 6 arguments Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 57/61] tools/nolibc/sys: Implement `mmap()` and `munmap()` Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 58/61] tools/nolibc/types: Implement `offsetof()` and `container_of()` macro Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 59/61] tools/nolibc/stdlib: Implement `malloc()`, `calloc()`, `realloc()` and `free()` Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 60/61] tools/nolibc/string: Implement `strnlen()` Paul E. McKenney
2022-04-19 0:42 ` [PATCH nolibc 61/61] tools/nolibc/string: Implement `strdup()` and `strndup()` Paul E. McKenney
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