Prototype:
unsigned long strtoul(FAR const char *nptr, FAR char **endptr, int base);
unsigned long long strtoull(FAR const char *nptr, FAR char **endptr, int base);
If endptr is not NULL, strtoul()/strtoull() should store the address of the first
invalid character in *endptr. And if the correct value is outside the range of
representable values, {ULONG_MAX} or {ULLONG_MAX} shall be returned and errno set
to [ERANGE].
With such code:
strtoul("34592348345343453453455645765736575865767", &endptr, 10);
It indeed returns ULONG_MAX and sets errno to ERANGE. But after strtoul
return, endptr points to "3455645765736575865767", not NULL.
Signed-off-by: Sunny <zxcvbnm37425@gmail.com>
1. Update all CMakeLists.txt to adapt to new layout
2. Fix cmake build break
3. Update all new file license
4. Fully compatible with current compilation environment(use configure.sh or cmake as you choose)
------------------
How to test
From within nuttx/. Configure:
cmake -B build -DBOARD_CONFIG=sim/nsh -GNinja
cmake -B build -DBOARD_CONFIG=sim:nsh -GNinja
cmake -B build -DBOARD_CONFIG=sabre-6quad/smp -GNinja
cmake -B build -DBOARD_CONFIG=lm3s6965-ek/qemu-flat -GNinja
(or full path in custom board) :
cmake -B build -DBOARD_CONFIG=$PWD/boards/sim/sim/sim/configs/nsh -GNinja
This uses ninja generator (install with sudo apt install ninja-build). To build:
$ cmake --build build
menuconfig:
$ cmake --build build -t menuconfig
--------------------------
2. cmake/build: reformat the cmake style by cmake-format
https://github.com/cheshirekow/cmake_format
$ pip install cmakelang
$ for i in `find -name CMakeLists.txt`;do cmake-format $i -o $i;done
$ for i in `find -name *\.cmake`;do cmake-format $i -o $i;done
Co-authored-by: Matias N <matias@protobits.dev>
Signed-off-by: chao an <anchao@xiaomi.com>
use PTHREAD_CLEANUP_STACKSIZE to enable or disable interfaces pthread_cleanup_push() and pthread_cleanup_pop().
reasons:(1)same as TLS_TASK_NELEM (2)it is no need to use two variables
Signed-off-by: yanghuatao <yanghuatao@xiaomi.com>
=================================================================
==2920138==ERROR: AddressSanitizer: invalid-pointer-pair: 0x603000000130 0x000000000000
#0 0x5602d3c6a89d in qsort stdlib/lib_qsort.c:180
#1 0x5602d3c28928 in romfs_cachenode romfs/fs_romfsutil.c:503
#2 0x5602d3c2854d in romfs_cachenode romfs/fs_romfsutil.c:486
#3 0x5602d3c2b056 in romfs_fsconfigure romfs/fs_romfsutil.c:777
#4 0x5602d3c24856 in romfs_bind romfs/fs_romfs.c:1111
#5 0x5602d3bf5179 in nx_mount mount/fs_mount.c:427
#6 0x5602d3bf5796 in mount mount/fs_mount.c:539
#7 0x5602d3bc1154 in nsh_romfsetc apps/nshlib/nsh_romfsetc.c:110
#8 0x5602d3b8f38d in nsh_initialize apps/nshlib/nsh_init.c:127
#9 0x5602d3b8f2b7 in nsh_main apps/system/nsh/nsh_main.c:69
#10 0x5602d3b7a3a6 in nxtask_startup sched/task_startup.c:70
#11 0x5602d3b5de89 in nxtask_start task/task_start.c:134
0x603000000130 is located 0 bytes inside of 32-byte region [0x603000000130,0x603000000150)
allocated by thread T0 here:
#0 0x7fcdac74793c in __interceptor_posix_memalign ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:226
#1 0x5602d3c9024e in host_memalign sim/posix/sim_hostmemory.c:180
#2 0x5602d3c907d2 in host_realloc sim/posix/sim_hostmemory.c:222
#3 0x5602d3b8aaff in mm_realloc sim/sim_heap.c:262
#4 0x5602d3b87a6a in realloc umm_heap/umm_realloc.c:91
#5 0x5602d3c280c4 in romfs_cachenode romfs/fs_romfsutil.c:466
#6 0x5602d3c2854d in romfs_cachenode romfs/fs_romfsutil.c:486
#7 0x5602d3c2b056 in romfs_fsconfigure romfs/fs_romfsutil.c:777
#8 0x5602d3c24856 in romfs_bind romfs/fs_romfs.c:1111
#9 0x5602d3bf5179 in nx_mount mount/fs_mount.c:427
#10 0x5602d3bf5796 in mount mount/fs_mount.c:539
#11 0x5602d3bc1154 in nsh_romfsetc apps/nshlib/nsh_romfsetc.c:110
#12 0x5602d3b8f38d in nsh_initialize apps/nshlib/nsh_init.c:127
#13 0x5602d3b8f2b7 in nsh_main apps/system/nsh/nsh_main.c:69
#14 0x5602d3b7a3a6 in nxtask_startup sched/task_startup.c:70
#15 0x5602d3b5de89 in nxtask_start task/task_start.c:134
Address 0x000000000000 is a wild pointer.
SUMMARY: AddressSanitizer: invalid-pointer-pair stdlib/lib_qsort.c:180 in qsort
==2920138==ABORTING
Aborted (core dumped)
Signed-off-by: chao an <anchao@xiaomi.com>
The POSIX standard dictates that during abnormal termination the functions
registered by atexit() are _not_ called, also flushing the streams is
optional. So in this case, it is perfectly legal / better to call the
kernel system call _exit() instead.
This fixes regression issues caused by removal exit() from the kernel.
Remove calls to the userspace API exit() from the kernel. The problem
with doing such calls is that the exit functions are called with kernel
mode privileges which is a big security no-no.
with the test of sim:lua ,I have fixed some bug of error output
1.input: " " and error output string is "NULL"
2.input: "1.2e+", error output string is "NULL"
3.input: "." error output string is "NULL"
solve:
almost the Hexadecimal string string->float
such as:
code:float num;
const char *s= "0x123p32lala";
char *p;
num=strtof(s,&p);
printf("num is %f\n",num);
printf("str is %s\n",p);
output:num is 1249835483136.000000
str is lala
but if the input number is much big;
like:
code:const char *s2= "0x999999p100";
num=strtof(s2,&p);
printf("num is %f\n",num);
printf("str is %s\n",p);
corrent : num is 12760587998944832242938906880669384704.000000
real: num is 12760587998944800000000000000000000000.000000
it didn't have enough precision
* libs/libc/stdlib/lib_strtod.c:
(strtod): Add a note about limitations of this implementation
as compared to POSIX in the function's docstring. Also fix a
typo.
* libs/libc/stdlib/lib_strtof.c:
(strtof): Port the changes made to strtod in PR-6952 (commit
c83985c5ce) and add same note as above to docstring.
* libs/libc/stdlib/lib_strtold.c:
(strtold): Same changes as strtof.
For CONFIG_BUILD_KERNEL using the sched/task/task_exithook implementation
will just not work. It calls user code with kernel privileges which is
a bit of a security issue.
follow up the following change:
commit 4262b09cbf
Author: Xiang Xiao <xiaoxiang@xiaomi.com>
Date: Fri Dec 17 02:58:49 2021 +0800
libc: Implement terminal api regardless of CONFIG_SERIAL_TERMIOS setting
since many functions aren't related to termios directly
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
since it's useful to redirect these functions to others
sometime(e.g. validate the memory before write).
Change-Id: I6253a9231af8809e8362f4bc5a1bd67fb094c3b0
since the similar functions(e.g. strdup/strndup) put into libs/libc/string
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ifb2c0c51298b09014748e5ee8275db51213d6911
