Skip to content

improve libc time and MSVC simulator #5775

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 9 commits into from
Apr 7, 2022
Merged

improve libc time and MSVC simulator #5775

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
9 commits
Select commit Hold shift + click to select a range
a11d85b
[libc] 解决由于历史原因fcntl.h定义的值在不同编译器中定义不同的问题
mysterywolf Apr 5, 2022
23a1a1c
[simulator] 部分宏定义转为全局宏定义以确保vs内置文件可以正确配置
mysterywolf Apr 5, 2022
84cdbab
[simulator] 取消自欺欺人式的警告消除处理方式以及
mysterywolf Apr 5, 2022
b219b1b
update readme
mysterywolf Apr 5, 2022
a9b085d
update sconscript
mysterywolf Apr 5, 2022
e985ead
[libc][time] 优化time相关结构体在不同编译器下的包含
mysterywolf Apr 5, 2022
ff8cda9
Update time.h
mysterywolf Apr 6, 2022
a8a3b62
Merge remote-tracking branch 'upstream/master' into libc
mysterywolf Apr 6, 2022
f929c1b
Update time.h
mysterywolf Apr 6, 2022
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
20 changes: 19 additions & 1 deletion bsp/simulator/drivers/SConscript
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,12 +1,29 @@
import sys
import os
from building import *
Import('rtconfig')

cwd = GetCurrentDir()
src = Glob('*.c')
LIBS = []
LIBPATH = []
CPPPATH = [cwd]
CPPDEFINES = []

if rtconfig.CROSS_TOOL == 'msvc':
CPPDEFINES += \
[
# avoid to conflict with the inherent STDC in VS
'_CRT_DECLARE_NONSTDC_NAMES=0',
# errno macro redefinition
'_CRT_ERRNO_DEFINED',
# time.h conflicts
'_CRT_NO_TIME_T',
# disable deprecation of unsafe functions, such as strncpy
'_CRT_SECURE_NO_WARNINGS',
# RT_VESRION conflicts in winuser.h
'NORESOURCE',
]

# remove no need file.
if GetDepend('PKG_USING_GUIENGINE') == False:
Expand All @@ -30,7 +47,8 @@ if GetDepend('RT_USING_DFS') == False or GetDepend('RT_USING_MODULE') == False:
if sys.platform[0:5]=="linux": #check whether under linux
SrcRemove(src, ['module_win32.c', 'dfs_win32.c'])

group = DefineGroup('Drivers', src, depend = [''], CPPPATH = CPPPATH, LIBS=LIBS, LIBPATH=LIBPATH)
group = DefineGroup('Drivers', src, depend = [''],
CPPPATH = CPPPATH, LIBS=LIBS, LIBPATH=LIBPATH, CPPDEFINES=CPPDEFINES)

list = os.listdir(cwd)
for item in list:
Expand Down
20 changes: 4 additions & 16 deletions bsp/simulator/rtconfig_project.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -12,21 +12,9 @@

#define RT_HEAP_SIZE (1024*1024*8)

#if defined(_MSC_VER)
#define NORESOURCE /* RT_VESRION in winuser.h */
#define _CRT_ERRNO_DEFINED /* errno macro redefinition */
#define _INC_WTIME_INL /* dfs_elm.c time.h conflicts with wtime.inl */
#define _INC_TIME_INL /* dfs_elm.c time.h conflicts with wtime.inl */
#define _CRT_DECLARE_NONSTDC_NAMES 0 /* avoid to conflict with the inherent STDC in VS */

#ifdef _MSC_VER
/* disable some warning in MSC */
#pragma warning(disable:4273) /* to ignore: warning C4273: inconsistent dll linkage */
#pragma warning(disable:4312) /* to ignore: warning C4312: 'type cast' : conversion from 'rt_uint32_t' to 'rt_uint32_t *' */
#pragma warning(disable:4311) /* to ignore: warning C4311: 'type cast' : pointer truncation from 'short *__w64 ' to 'long' */
#pragma warning(disable:4996) /* to ignore: warning C4996: The POSIX name for this item is deprecated. */
#pragma warning(disable:4267) /* to ignore: warning C4267: conversion from 'size_t' to 'rt_size_t', possible loss of data */
#pragma warning(disable:4244) /* to ignore: warning C4244: '=' : conversion from '__w64 int' to 'rt_size_t', possible loss of data */

#endif /* end of _MSC_VER */
// #pragma warning(disable:4273) /* to ignore: warning C4273: inconsistent dll linkage */
#endif /* _MSC_VER */

#endif
#endif /* RTCONFIG_PROJECT_H__ */
11 changes: 9 additions & 2 deletions components/libc/compilers/common/extension/SConscript
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
import os
from building import *

Import('rtconfig')

src = []
Expand All @@ -9,6 +9,13 @@ group = []

src += Glob('*.c')

if rtconfig.PLATFORM != 'gcc' or rtconfig.ARCH == 'sim':
if rtconfig.PLATFORM != 'gcc':
group = DefineGroup('Compiler', src, depend = [''], CPPPATH = CPPPATH)

list = os.listdir(cwd)
for d in list:
path = os.path.join(cwd, d)
if os.path.isfile(os.path.join(path, 'SConscript')):
group = group + SConscript(os.path.join(d, 'SConscript'))

Return('group')
4 changes: 4 additions & 0 deletions components/libc/compilers/common/extension/fcntl/README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,4 @@
Because of the history issue, flags in fcntl.h, such as O_CREAT, have difference types of value. Some OS use hex flags and others use octal flags.

In terms of RT-Thread, Keil, IAR and MSVC use octal flags, which is located in the `tcntl/octal` folder; newlib uses hex flags; musl uses octal flags.

15 changes: 15 additions & 0 deletions components/libc/compilers/common/extension/fcntl/SConscript
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,15 @@
# RT-Thread building script for bridge

import os
from building import *

cwd = GetCurrentDir()
objs = []
list = os.listdir(cwd)

for d in list:
path = os.path.join(cwd, d)
if os.path.isfile(os.path.join(path, 'SConscript')):
objs = objs + SConscript(os.path.join(d, 'SConscript'))

Return('objs')
14 changes: 14 additions & 0 deletions components/libc/compilers/common/extension/fcntl/octal/SConscript
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,14 @@
from building import *
Import('rtconfig')

src = []
cwd = GetCurrentDir()
CPPPATH = [cwd]
group = []

if rtconfig.PLATFORM == 'armcc' or\
rtconfig.PLATFORM == 'armclang' or\
rtconfig.PLATFORM == 'iar' or\
rtconfig.CROSS_TOOL == 'msvc':
group = DefineGroup('Compiler', src, depend = [''], CPPPATH = CPPPATH)
Return('group')
0 ...s/libc/compilers/common/extension/fcntl.h → ...lers/common/extension/fcntl/octal/fcntl.h
View file
Open in desktop
File renamed without changes.
14 changes: 8 additions & 6 deletions components/libc/compilers/common/sys/time.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,9 @@
#include <time.h>
#ifdef _WIN32
#include <winsock.h> /* for struct timeval */
#endif
#include <corecrt.h> /* for __time64_t */
typedef __time64_t time_t;
Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

这个地方要留意

get_timeval 和 set_timeval 里面有这样一段代码

static int set_timeval(struct timeval *tv)
{
    rst = rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &tv->tv_sec);
    rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIMEVAL, tv);
}

vs 上 struct timeval 中的 tv_sec 类型是 long，RTC 驱动那边，会当成 time_t * 进行赋值，会造成不致命的内存越界

// 这种形式会写穿 tv_usec，不致命
struct timeval {
        long    tv_sec;         /* seconds */
        long    tv_usec;        /* and microseconds */
};

// 这种形式会写穿后面的内存，致命
struct timeval {
        long    tv_usec;        /* and microseconds */
        long    tv_sec;         /* seconds */
};

Copy link
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more. 

struct timeval {
        long    tv_usec;        /* and microseconds */
        long    tv_sec;         /* seconds */
};

这种倒过来的形式在newlib vs都没有 都是正着的
time64可以先放着，因为后续都要升级到64位了，要应对2038的问题。

Copy link
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

看来2038的问题不只是time_t 32改64这么简单，相关的时间结构体 long都得改成longlong

#endif /* _WIN32 */

#ifdef __cplusplus
extern "C" {
Expand Down Expand Up @@ -50,17 +52,17 @@ struct timeval
time_t tv_sec; /* seconds */
suseconds_t tv_usec; /* and microseconds */
};
#endif
#endif /* !defined(_TIMEVAL_DEFINED) && !defined(_WIN32) */

#if !(defined(__GNUC__) && !defined(__ARMCC_VERSION)/*GCC*/) && \
!(defined(__ICCARM__) && (__VER__ >= 8010001)) && \
!defined(_WIN32)
#if defined(__ARMCC_VERSION) || defined(_WIN32) || (defined(__ICCARM__) && (__VER__ >= 8010001))
struct timespec
{
time_t tv_sec; /* seconds */
long tv_nsec; /* and nanoseconds */
};
#endif /* defined(__ARMCC_VERSION) || defined(_WIN32) || (defined(__ICCARM__) && (__VER__ >= 8010001)) */

#if !(defined(__GNUC__) && !defined(__ARMCC_VERSION)/*GCC*/)
/*
* Structure defined by POSIX.1b to be like a itimerval, but with
* timespecs. Used in the timer_*() system calls.
Expand All @@ -70,7 +72,7 @@ struct itimerspec
struct timespec it_interval;
struct timespec it_value;
};
#endif
#endif /* !(defined(__GNUC__) && !defined(__ARMCC_VERSION)) */

int stime(const time_t *t);
time_t timegm(struct tm * const t);
Expand Down