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65 Commits

Author SHA1 Message Date
lilei19
04f15d9dc1 fix the bug of strtold 2023-01-15 19:57:56 +08:00
lilei19
1f95cfdde8 fix the some else bug of strtold 
I accidentally changed it when I was optimizing the code

Signed-off-by: lilei19 <lilei19@xiaomi.com>
 2023-01-13 15:11:20 +02:00
lilei19
120594079a add function for strtof 2023-01-12 23:46:23 +08:00
Jiuzhu Dong
c623ee20f1 stdlib: generate uniformly distributed pseudo-random numbers 
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
 2023-01-04 20:53:05 +08:00
Ville Juven
3be81e649f libc/stdio: Flush streams in userspace when process exits 
This fixes a long standing issue, where the kernel does flushing of file
streams, although it should not handle such streams at all.
 2022-12-22 20:16:11 +08:00
flyingfish89
fa59db8cea Add Hexadecimal parsing for strtof 
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
 2022-11-30 19:03:07 +08:00
chao an
80a2d058b8 lib/atexit: correct return value of exitfunc lock 
Signed-off-by: chao an <anchao@xiaomi.com>
 2022-11-07 18:14:30 +08:00
anjiahao
d1d46335df Replace nxsem API when used as a lock with nxmutex API 
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-10-17 15:59:46 +09:00
chao an
09c006b9c8 libs: fix visual studio Compiler Error C2124 
D:\code\incubator-nuttx\libs\libc\stdlib\lib_strtod.c: error C2124: divide or mod by zero

Windows MSVC restrictions, MSVC doesn't allow division through a
zero literal, but allows it through non-const variable set to zero

Reference:
https://docs.microsoft.com/en-us/cpp/error-messages/compiler-errors-1/compiler-error-c2124?view=msvc-170

Signed-off-by: chao an <anchao@xiaomi.com>
 2022-09-26 04:40:09 +08:00
Nathan Hartman
a0ee5d3747 libc: Port strtod fixes to strtof, strtold and improve comments 
* 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.
 2022-08-30 09:47:50 +08:00
Fotis Panagiotopoulos
c83985c5ce Fixes in strtod parser. 2022-08-29 17:13:11 -03:00
chao.an
0e6edd39ec libs: fix visual studio Compiler Error C2124 
D:\code\incubator-nuttx\libs\libc\stdlib\lib_strtof.c(76,1): error C2124: divide or mod by zero

Windows MSVC restrictions, MSVC doesn't allow division through a
zero literal, but allows it through non-const variable set to zero

Reference:
https://docs.microsoft.com/en-us/cpp/error-messages/compiler-errors-1/compiler-error-c2124?view=msvc-170

Signed-off-by: chao.an <anchao@xiaomi.com>
 2022-08-24 16:50:48 +08:00
Jiuzhu Dong
673a2e0136 libc/wchar: support wchar 
Implemented according to https://en.wikipedia.org/wiki/UTF-8

Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
 2022-07-27 00:36:49 +08:00
Jiuzhu Dong
035840a770 libc/wchar: remove unnecessary config 
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
 2022-07-27 00:36:49 +08:00
Xiang Xiao
5b165a2294 libc/stdio: Generate the dummy atexit and on_exit 
since the compiler may generate the code call atexit automatically

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-06-07 20:14:34 +03:00
Xiang Xiao
406e1effed libc: Always compile ___cxa_atexit 
since libsupc++ depends on it unconditionally

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-06-02 10:54:23 +03:00
Ville Juven
622677d4a1 libc: Implement exit, atexit, on_exit and cxa_exit on the user side 
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.
 2022-05-25 15:28:43 +08:00
Ville Juven
fb1c1bfe6c libc: Rename lib_Exit lib__Exit 
Naming collision with lib_exit on some systems
 2022-05-12 14:24:18 +03:00
Xiang Xiao
96ff41d5b2 libc: Don't duplicate string in chdir and lib_restoredir 
since the new layout doesn't reallocate the unchanged environ variable anymore

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-04-18 10:36:36 +03:00
Xiang Xiao
34baf47307 libc: posix_openpty should use the absolute path("dev/ptmx") 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-02-14 08:43:05 +09:00
Xiang Xiao
0ff29e8f10 libc/stdlib: Compile lib_openpty.c without checking CONFIG_SERIAL_TERMIOS 
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>
 2022-02-03 22:51:28 +01:00
Xiang Xiao
57c3fce583 libc: Implement posix_openpt 
specify here:
https://pubs.opengroup.org/onlinepubs/009695399/functions/posix_openpt.html

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-02-03 11:02:31 -03:00
Xiang Xiao
ed1e4ddfa7 libc: Add getprogname function 
defined here:
https://www.freebsd.org/cgi/man.cgi?query=getprogname&sektion=3

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2021-12-15 10:47:56 -06:00
Xiang Xiao
5025fbef8d Rename LIB_ to LIBC_ for all libc Kconfig 
follow other libc component naming convention

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2021-08-05 19:45:24 +02:00
mage1
def007e2d7 add #undef for some libc function 
since it's useful to redirect these functions to others
sometime(e.g. validate the memory before write).

Change-Id: I6253a9231af8809e8362f4bc5a1bd67fb094c3b0
 2021-07-14 15:09:58 -03:00
Nathan Hartman
ce20211357 Fix various typos in comments and documentation 
Fix typos in these files:
    * Documentation/components/drivers/character/foc.rst
    * Documentation/guides/cpp_cmake.rst
    * Kconfig
    * arch/arm/src/imxrt/imxrt_lpspi.c
    * arch/arm/src/kinetis/kinetis_spi.c
    * arch/arm/src/kl/kl_spi.c
    * arch/arm/src/lpc31xx/lpc31_spi.c
    * arch/arm/src/nrf52/nrf52_radio.h
    * arch/arm/src/s32k1xx/s32k1xx_lpspi.c
    * arch/arm/src/stm32/Kconfig
    * arch/arm/src/stm32/stm32_adc.c
    * arch/arm/src/stm32/stm32_foc.c
    * arch/arm/src/stm32/stm32_foc.h
    * arch/arm/src/stm32/stm32_pwm.c
    * arch/arm/src/stm32/stm32_spi.c
    * arch/arm/src/stm32f0l0g0/stm32_spi.c
    * arch/arm/src/stm32f7/Kconfig
    * arch/arm/src/stm32f7/stm32_spi.c
    * arch/arm/src/stm32h7/Kconfig
    * arch/arm/src/stm32h7/stm32_allocateheap.c
    * arch/arm/src/stm32h7/stm32_fmc.c
    * arch/arm/src/stm32h7/stm32_fmc.h
    * arch/arm/src/stm32h7/stm32_pwm.c
    * arch/arm/src/stm32h7/stm32_qspi.c
    * arch/arm/src/stm32h7/stm32_spi.c
    * arch/arm/src/stm32l4/stm32l4_pwm.c
    * arch/arm/src/stm32l4/stm32l4_spi.c
    * arch/arm/src/stm32l5/Kconfig
    * arch/arm/src/stm32l5/stm32l5_spi.c
    * arch/renesas/src/rx65n/rx65n_dtc.c
    * arch/renesas/src/rx65n/rx65n_usbdev.c
    * arch/risc-v/src/rv32m1/rv32m1_serial.c
    * boards/arm/stm32/b-g431b-esc1/src/stm32_foc.c
    * boards/arm/stm32/nucleo-f103rb/src/stm32_foc_ihm07m1.c
    * boards/arm/stm32/nucleo-f302r8/src/stm32_foc_ihm07m1.c
    * boards/arm/stm32h7/nucleo-h743zi2/README.txt
    * boards/risc-v/rv32m1/rv32m1-vega/README.txt
    * boards/sim/sim/sim/scripts/Make.defs
    * drivers/1wire/1wire.c
    * drivers/1wire/1wire_internal.h
    * drivers/lcd/Kconfig
    * drivers/syslog/ramlog.c
    * fs/fat/Kconfig
    * libs/libc/debug/Kconfig
    * libs/libc/machine/Kconfig
    * libs/libc/stdio/lib_libvsprintf.c
    * libs/libc/stdlib/lib_div.c
    * libs/libc/stdlib/lib_ldiv.c
    * libs/libc/stdlib/lib_lldiv.c
    * libs/libdsp/lib_observer.c
 2021-07-04 11:23:26 -05:00
Xiang Xiao
187538c0b9 Move aligned_alloc, posix_memalign and valloc from mm/umm to libs/libc/stdlib 
since the similar functions(e.g. strdup/strndup) put into libs/libc/string

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ifb2c0c51298b09014748e5ee8275db51213d6911
 2021-07-01 11:44:38 -07:00
Xiang Xiao
2e54df0f35 Don't include assert.h from public header file 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2021-06-03 08:36:03 -07:00
Xiang Xiao
e1ff0c4f08 libc: Implement openpty function 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I36e02af0145cd6e740766e7484cc9d5ce410e5e4
 2021-05-12 21:08:23 -07:00
Xiang Xiao
bf733f7213 libc/pty: Make ptsname[_r] support PSEUDOTERM_BSD config too 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I82a60ded48ea3437bd5f2b4fe328294d7077b040
 2021-05-07 16:35:20 -03:00
Xiang Xiao
3f9908f7d1 Remove the unnecessary math.h inclusion 
or move from header file to source file since math.h doesn't always exist

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2021-04-12 22:58:23 -04:00
Alin Jerpelea
b7c451c5a4 libs: Gregory Nutt: update licenses to Apache 
Gregory Nutt has submitted the SGA and we can migrate the licenses
 to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
 2021-04-02 11:12:25 -05:00
Alin Jerpelea
ed8e5e971b libs: fix nxstyle errors 
fix erros reported by nxstyle

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
 2021-04-02 11:12:25 -05:00
Gustavo Henrique Nihei
330eff36d7 sourcefiles: Fix relative path in file header 2021-03-09 23:18:28 +08:00
Alin Jerpelea
d6b50a1d3f libs: nxstyle fixes 
nxstyle fixes to pass the CI checks

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
 2021-03-03 18:52:53 -08:00
Alin Jerpelea
b5d4a01821 libs: Author Gregory Nutt: update licenses to Apache 
Gregory Nutt has submitted the SGA and we can migrate the licenses
 to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
 2021-03-03 18:52:53 -08:00
Xiang Xiao
9473434587 Ensure the kernel component don't call userspace API 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2021-03-01 09:23:09 +09:00
Jiuzhu Dong
fecc68d1bb mm/umm_heap: move memory-related api from libc/stdlib to umm 
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
 2021-02-26 11:47:11 -08:00
Xiang Xiao
533a7319d9 libc: Move stack check stuff from libc/stdlib/ to libc/assert/ 
since the new location is more reasonable

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2021-02-20 10:10:15 -08:00
Peter Bee
1f5786f5ea libc/stdlib: Fix range check in strtoul(l) 
The previous implementation of strtoul(l) is flawed. The range check
assumed that when overflow happens, the truncated value is smaller than
the original value. As a counter example, passing "10000000000" to
strtol will not trigger ERANGE, but return a truncated value. This patch
adds more accurate range checks.

Change-Id: I239e034e390b4974157ed6efa17110f2e74904cf
Signed-off-by: Peter Bee <bijunda1@xiaomi.com>
 2020-11-12 06:01:33 -08:00
chao.an
216c33a5c7 libs/libc/stdlib: Implement mkdtemp(3) syscall 
See the reference here:
https://pubs.opengroup.org/onlinepubs/9699919799/functions/mkdtemp.html

Change-Id: I49081ecafc011a843e6067b1118b53bf65d4418b
Signed-off-by: chao.an <anchao@xiaomi.com>
 2020-09-19 04:16:14 -07:00
chao.an
4067a9f057 libs/libc/stdio: correct the prototype of mktemp(3) 
From:   int       mktemp(FAR char *path_template);
To:     FAR char *mktemp(FAR char *path_template);

See the reference here:
https://pubs.opengroup.org/onlinepubs/009695399/functions/mktemp.html

Signed-off-by: chao.an <anchao@xiaomi.com>
 2020-09-19 04:16:14 -07:00
qiaowei
1d97b2ecee stack check: Support Stack Smashing Protector(SSP) 
and enable on sim as a demo. Here is the paper:
ftp://gcc.gnu.org/pub/gcc/summit/2003/Stackguard.pdf

Signed-off-by: qiaowei <qiaowei@xiaomi.com>
Change-Id: I1926936328dad54eee16b322dcaad0b42f9c4a62
 2020-08-18 09:58:21 -07:00
Gregory Nutt
188d4b0fb4 user-space memalign() must not be called from within the OS. 
drivers/net/ftmac100.c, libs/libc/stdlib/lib_aligned_alloc.c

A continuation of PRs #1507, #1510, and #1512.  See Issue #1481 for additional information.
 2020-08-04 22:45:47 +01:00
Xiang Xiao
1cb1fb427d libc: Replace all malloc/free to lib_malloc/lib_free 
since libc can be built and used in kernel space,
we must call kmm_malloc and kmm_free in this case.

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2020-07-29 10:14:27 +01:00
Xiang Xiao
60fe0a0f96 libc: Refine the inline handling 
1.Remove CONFIG_HAVE_INLINE macro
2.Change the ANSI C function to normal function
3.Other simple non ANSI function to macro

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2020-07-04 11:10:29 +09:00
Xiang Xiao
a102922e12 libc: Implement realpath 
specified here:
https://pubs.opengroup.org/onlinepubs/9699919799/functions/realpath.html

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ie52dcd1c5c5faa4b033901eedd7182bbb9473f7a
 2020-06-30 13:09:58 -06:00
Xiang Xiao
d17b963bca libc: Move double_t typedef from sys/types.h to math.h 
specified here:
https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/math.h.html

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I3497a73908301d999cf1cfc4a66552a7ca4868c6
 2020-06-29 13:37:41 +01:00
YAMAMOTO Takashi
66052f7c4c mkstemp: Only look at the trailing Xs 
As it's stated in the standards.

The original code look at the first Xs. It can end up with
an unexpected behavior, if a template contains multiple series of Xs.
E.g. /tmp/XXXXXX/XXXXXX
 2020-06-16 19:47:42 +08:00
Xiang Xiao
c76443f456 libc: Remove CONFIG_LIBC_TMPDIR definition from lib_mkstemp.c 
since this file doesn't use this macro at all

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I6042316a2568e35ed1b3dd0ab1b974ca5d23f02f
 2020-06-03 07:46:02 -06:00