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587 Commits

Author SHA1 Message Date
Gregory Nutt
6a58f046e6 CONFIG_LIBC_DIFFTIME is no longer used, but was still in Kconfig file. Noted by Sebastien Lorquet 2016-08-25 08:09:23 -06:00
Sebastien Lorquet
51596dc457 Updata difftime. Add a version of difftime for the case where the platform does not support type double 2016-08-25 08:00:50 -06:00
Sebastien Lorquet
a626ba5b70 libc/time: This commit adds the difftime() function. Since the function returns a double, I have isolated it in a CONFIG_LIBC_DIFFTIME option (It also depends on the toolchain-dependent CONFIG_HAVE_DOUBLE so is not available on tiny platforms). 2016-08-24 15:43:57 -06:00
Gregory Nutt
67851849da Upate ChangeLog 2016-08-22 10:31:52 -06:00
Gregory Nutt
60b70f7dbb Make xorshift128 re-entrant so that we do do have to suffer the overhad of serialization controls. 2016-08-21 07:47:53 -06:00
Gregory Nutt
757023a909 XorShift128: Add some protection to handle the case where this logic could be called from the interrupt level. 2016-08-20 17:27:41 -06:00
Gregory Nutt
6f833be9d5 Separate XorShift128 PRNG from /dev/urandom and make it generally available. 2016-08-20 11:36:02 -06:00
Gregory Nutt
6e5010e0d0 floor(), floorf(), and floorl(): Fix logic error. Was not correctly handling negative integral value. 2016-08-11 18:21:29 -06:00
Gregory Nutt
155055d564 strtod(): Was not returning endptr on error conditions. 2016-08-11 18:20:25 -06:00
Gregory Nutt
0e35bad987 Update some comments 2016-08-11 10:12:04 -06:00
Gregory Nutt
986c568d34 Correct file header comments 2016-08-07 10:04:02 -06:00
Gregory Nutt
4daa553328 lib_asinl.c edited online with Bitbucket. Add missing # on endif. Noted by David Alessio. 2016-07-31 16:47:25 +00:00
David S. Alessio
c145159c6b This commit fixes the following libc/math issues: 
1) asin[f l]() use Newton’s method to converge on a solution. But Newton’s method converges very slowly (> 500,000 iterations) for values of x close to 1.0; and, in the case of asinl(), sometimes fails to converge (loops forever). The attached patch uses an trig identity for values of x > sqrt(2). The resultant functions converge in no more than 5 iterations, 6 for asinl().

2) The NuttX erf[f l]() functions are based on Chebyshev fitting to a good guess. The problem there’s a bug in the implementation that causes the functions to blow up with x near -3.0. This patch fixes that problem. It should be noted that this method returns the error function erf(x) with fractional error less than 1.2E-07 and that’s fine for the float version erff(), but the same method is used for double and long double version which will yield only slightly better precision. This patch doesn't address the issue of lower precision for erf() and erfl().

3) a faster version of copysignf() for floats is included.
 2016-07-30 15:43:56 -06:00
Gregory Nutt
d36d9d61be Trivial spacing change 2016-07-28 09:34:56 -06:00
Gregory Nutt
2b3bc90ba5 Correct a comment 2016-07-27 09:09:40 -06:00
Pierre-noel Bouteville
d4f3954b35 lib_dumpbuffer: Now prints a large on-stack buffer first to avoid problems when the syslog output is prefixed with time. 2016-07-27 08:40:46 -06:00
Gregory Nutt
fd42f898f6 libc: Add mkfifo() and pipe() to libc CSV file 2016-07-22 11:02:51 -06:00
Gregory Nutt
7370d3171a Move include/nuttx/lib.h to include/nuttx/lib/lib.h 2016-07-21 14:05:44 -06:00
Gregory Nutt
779d3f98ed Move include/nuttx/math32.h to include/nuttx/lib/math32.h 2016-07-21 14:00:15 -06:00
Gregory Nutt
23a876ab9c Move include/nuttx/math.h to include/nuttx/lib/math.h 2016-07-21 13:58:09 -06:00
Gregory Nutt
72a45c82b7 Move include/nuttx/regex.h to include/nuttx/lib/regex.h 2016-07-21 13:42:18 -06:00
Gregory Nutt
ee9c66186c ramdisk.h moved from include/fs/nuttx/ to include/nuttx/drivers. 2016-07-20 14:02:18 -06:00
Gregory Nutt
4b4dbc79a2 Move driver related prototypes out of include/nuttx/fs/fs.h and into new include/drivers/drivers.h 2016-07-20 13:15:37 -06:00
Gregory Nutt
e73e82a923 Move prototypes of mkfifo2() from sys/stat.h and pipe2() from unistd.h. They are non-standard and should not be in such a public place. They are not in include/nuttx/fs/fs.h (which isn't a great place either). 2016-07-20 11:57:18 -06:00
Gregory Nutt
b28fa8a609 Move pipe() and mkpipe() to nuttx/libc. Change syscalls to pipe2() and mkfifo2() 2016-07-19 14:15:26 -06:00
Gregory Nutt
5a35abb488 Improve some comments 2016-07-17 08:31:02 -06:00
Gregory Nutt
07e20479ad /dev/random: Add configuration option to use the congruential PRNG. 2016-07-17 07:56:25 -06:00
Gregory Nutt
ffd3a31649 Rename lib_rand.c to lib_srand.c 2016-07-17 07:11:09 -06:00
Gregory Nutt
95555a0199 PTY: Add ioctls to support locking and unlocking of the slave. LIBC: Add implementation of unlockpt() 2016-07-15 09:39:33 -06:00
Gregory Nutt
6139860c0b PTY: Added PTY IOCTL command definitions. Add support for TIOCGPTN. LIB: Implement ptsname() and ptsname_r() 2016-07-15 08:33:47 -06:00
David Alessio
912ad2d345 Fix bug in logf() algorithm that caused erroneous INFINITY results. 2016-07-14 20:15:37 -06:00
Gregory Nutt
96edfdb4c7 libm: Fix/improve range checks in lib_expi() and lib_expif(). 2016-07-12 09:59:10 -06:00
Gregory Nutt
3bc504b685 Per comment from David Alession: M_E128 will never be used since it is greater than FLT_MAX. 2016-07-12 09:59:08 -06:00
Gregory Nutt
dfe8596e53 Cosmetic 2016-07-11 14:15:34 -06:00
Gregory Nutt
f9d4b50207 If there are no streams, let printf() fall back to use syslog() for output. 2016-07-11 13:52:21 -06:00
Gregory Nutt
29eae10232 lib_expi/f(): Exponental table should be 'const'. Dimension was wrong for float version. 2016-07-11 13:53:31 -06:00
Gregory Nutt
6a081e118d Add guess at missing lib_libexpif.c file 2016-07-11 13:43:43 -06:00
David Alessio
261358f1f5 This change should significantly improve the performance of single precision floating point math library functions. The vast majority of changes have to do with preventing the compiler from needlessly promoting floats to doubles, performing the calculation with doubles, only to demote the result to float. These changes only affect the math lib functions that return float. 2016-07-11 07:02:50 -06:00
Gregory Nutt
830af912a1 Add sig_raise() 2016-07-04 09:32:36 -06:00
Gregory Nutt
bde90de12f Fix libc/zoneinfo build 2016-06-30 16:20:43 -06:00
Gregory Nutt
aa96a1d2ec Move the TZ/Olson zoneinfo data set from apps/system/zoneinfo to libc/zoneinfo 2016-06-30 15:40:37 -06:00
Gregory Nutt
67ea112767 Update ChangeLog 2016-06-27 13:08:40 -06:00
Gregory Nutt
2a19e16eb0 libc/hex2bin: Move the portable library portion of apps/system/hex2bin to nuttx/libc/hex2bin where it can be shared with the OS internals. 2016-06-27 11:22:38 -06:00
Gregory Nutt
7f16548f57 Replaces last three commits. Does the same thing, but does it in a way that does not change the usage model. 2016-06-21 05:26:08 -06:00
Gregory Nutt
b82743612f Even the 'unconditional' _alert() macro should be disabled if all debug features are disabled. 2016-06-20 22:38:54 -06:00
Gregory Nutt
505ca542e8 Remove some last traces of lowvsyslog that were missed; Add a SYSLOG emergency channel for handling assertion output more cleanly 2016-06-20 16:11:50 -06:00
Gregory Nutt
2a751068e6 Without lowsyslog() *llerr() is not useful. Eliminate and replace with *err(). 2016-06-20 12:44:38 -06:00
Gregory Nutt
43eb04bb8f Without lowsyslog() *llinfo() is not useful. Eliminate and replace with *info(). 2016-06-20 11:59:15 -06:00
Gregory Nutt
d40a473f72 Without lowsyslog() *llwarn() is not useful. Eliminate and replace with *warn(). 2016-06-20 09:37:08 -06:00
Gregory Nutt
2b445ddccc Remove lowsyslog(). The new syslog() includes all of the functionality of lowsyslog(). No longer any need for two interfaces. 2016-06-20 08:57:08 -06:00
Gregory Nutt
fa365e85f5 Update some cmoments 2016-06-20 06:11:22 -06:00
Gregory Nutt
7dd66a4620 Need to pass va_list as a reference to vsyslog. This is because va_list is a structure in some compilers and passing of structures in the NuttX sycalls does not work. 2016-06-19 14:50:00 -06:00
Gregory Nutt
5b2aa7bf99 Remove all traces of CONFIG_SYSLOG 2016-06-19 13:59:43 -06:00
Gregory Nutt
9434d3e945 There is now one-and-only-one copy of syslog_putc. It is in the SYSLOG channel logic and can redirect syslog output as needed. All former syslog_putc versions were renamed and the corresponding SYSLOG device initializaiton now calls syslog_channel() 2016-06-19 13:03:20 -06:00
Gregory Nutt
34f776dce9 Move the OS intensive part of vsyslog and vlowsyslog to drivers/syslog/vsyslog.c and vlowsyslog.c. Also move lib_syslogstrem to drivers/syslog/syslogstream.c 2016-06-19 07:56:24 -06:00
Gregory Nutt
d3b8c03a8a Fix a few missed changes from *dbg() to *err() and *vdbg() to *info() 2016-06-17 06:00:45 -06:00
Gregory Nutt
28192d3c60 Re-order some conditional compilation; up_interrupt_context() is not generally available to applications. 2016-06-16 20:10:19 -06:00
Gregory Nutt
ea8241027e syslog() will now automatically redirect output to lowsyslog() if called from an interrupt handler 2016-06-16 19:57:06 -06:00
Gregory Nutt
0c8c7fecf0 Add _ to the beginning of all debug macros to avoid name collisions 2016-06-16 12:33:32 -06:00
Gregory Nutt
24c51ec1ff Centralize definitions associated with CONFIG_DEBUG_LCD 2016-06-15 11:40:33 -06:00
Gregory Nutt
a98bc05f65 New debug macro: alert(). This is high priority, unconditional output and is used to simplify and stanardize crash error reporting. 2016-06-14 09:07:53 -06:00
Gregory Nutt
90e60513b1 New strtoul[l] functions need to include errno.h 2016-06-13 08:49:46 -06:00
Gregory Nutt
56c5da3030 Cosmetic change from review of PR53 2016-06-13 08:21:06 -06:00
Sebastien Lorquet
15c92867de Fixes for strtoul/strtoull. Fixes Issue #1 2016-06-13 15:29:05 +02:00
Gregory Nutt
5073bf1de6 Update some comments 2016-06-13 07:02:45 -06:00
Gregory Nutt
4f97f15b5e graphics/, libc/: Change some err() ERRORS to warn() WARNINGS or info() 2016-06-12 11:11:57 -06:00
Gregory Nutt
b1eb4fdd8e Rethink some recent warning removal logic 2016-06-12 07:17:04 -06:00
Gregory Nutt
cffef35644 Eliminate some warnings introduced with DEBUG changes 2016-06-11 18:09:39 -06:00
Gregory Nutt
a1469a3e95 Add CONFIG_DEBUG_ERROR. Change names of *dbg() * *err() 2016-06-11 15:50:49 -06:00
Gregory Nutt
e99301d7c2 Rename *lldbg to *llerr 2016-06-11 14:55:27 -06:00
Gregory Nutt
86b79b33cf Reserver the name 'err' for other purposes 2016-06-11 14:40:07 -06:00
Gregory Nutt
1cdc746726 Rename CONFIG_DEBUG to CONFIG_DEBUG_FEATURES 2016-06-11 14:14:08 -06:00
Gregory Nutt
a3bb764305 Add support for a warn() marco that will be between dbg() and info() in priority 2016-06-11 12:38:37 -06:00
Gregory Nutt
fc3540cffe Replace all occurrences of vdbg with vinfo 2016-06-11 11:59:51 -06:00
Gregory Nutt
3a74a438d9 Rename CONFIG_DEBUG_VERBOSE to CONFIG_DEBUG_INFO 2016-06-11 11:50:18 -06:00
Paul A. Patience
5cfffbfa62 crc64: fix error 2016-06-10 12:30:45 -04:00
Paul A. Patience
9587c551ad libc/misc: add crc64 2016-06-10 11:03:50 -04:00
Paul A. Patience
fdbbe8dc9a crc16: fix error 2016-06-10 09:13:43 -04:00
Gregory Nutt
4f81a60ef6 Add a NAN test on 'x' in asin function of lib_asin.c. Suggested by Pierre-noel Bouteville. 2016-05-31 06:31:04 -06:00
Gregory Nutt
5ef3e3e215 Replace confusing references to uIP with just 'the network' 2016-05-30 11:52:07 -06:00
Paul A. Patience
f8f7b7582c Silence some warnings 2016-05-26 14:06:13 -04:00
Gregory Nutt
ca04284750 Remove comment blocks for empty file sections 2016-05-18 13:00:36 -06:00
Gregory Nutt
4e71c4c9ef Correct some typos in comments 2016-05-18 12:49:07 -06:00
Gregory Nutt
b9c2b92b10 Add utilities to count the number of nodes in a queue 2016-04-23 13:25:46 -06:00
Alan Carvalho de Assis
7f5339ee5a drivers/sensors/h1750fvi.c: Add a character driver for Rohm Ambient Light Sensor BH1750FVI. 2016-04-15 08:16:16 -06:00
Gregory Nutt
9008308b64 Remove some block comments before empty code sections 2016-04-11 18:16:04 -06:00
Gregory Nutt
2e49111a17 Fix an error in a DEBUG assertion 2016-04-11 09:07:23 -06:00
Gregory Nutt
6653c5cbf3 Signals: Correct implementation of sigset(). It is not just signal() with a different name; it has some additional signal mask handling functionality 2016-04-11 09:04:54 -06:00
Gregory Nutt
28a4ca6713 libc/signal and include/signal.h: Rename sigset() to signal(). sigset() is the System V function; signal() is the obsoleted POSIX name. These seem to be equivalent. Neither are relevant in modern POSIX programming but the name signal() probably has better credentials. sigset() is now relegated to a #define in signal.h that makes it equivalent to signal(). 2016-04-10 14:35:45 -06:00
Kha Vo
bb09dc30a4 sigset: Fix an IAR compilation problem 2016-04-03 13:58:49 -06:00
Kha Vo
51facd904d bsearch: Fix an IAR compilation problem 2016-04-03 13:56:59 -06:00
Gregory Nutt
53a721cdd7 Fix a cloned error in both sq_cat() and dq_cat() 2016-03-23 14:48:50 -06:00
Gregory Nutt
4a962a36dd Add library functions to concatenate and move lists. Add scheduler function to merge prioritized function to merge prioritized lists (not yet used). 2016-03-23 08:00:58 -06:00
Gregory Nutt
24468128de TLS: Simplify 2016-03-11 07:17:32 -06:00
Gregory Nutt
6af9b23df5 libc/netdb: Fix some compile issues when IPv6 is enabled 2016-02-25 13:59:42 -06:00
Gregory Nutt
0fb035f76b Standardize some naming in code section comments 2016-02-21 18:09:04 -06:00
Gregory Nutt
143d287f11 Fix some missing header file inclusions and a misplaced semi-colon from recent commits 2016-02-21 11:27:55 -06:00
Gregory Nutt
f3356fee5b SMP: Add macros to CPU set manipulation to sched.h 2016-02-20 18:45:07 -06:00
Gregory Nutt
883a1adfe2 Implement sched_setaffinity() and sched_getaffinity() 2016-02-19 19:18:54 -06:00
Gregory Nutt
28d138c584 Add files that I forgot to add in the last commit 2016-02-19 17:58:47 -06:00