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Add perror()

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5061 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2012-08-28 19:01:14 +00:00
parent 9019c148da
commit 0924661c3e
4 changed files with 14 additions and 4 deletions
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4
ChangeLog.txt
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@ -289,5 +289,5 @@
threds to no more than 3 of each priority. Bad things happen threds to no more than 3 of each priority. Bad things happen
when the existing logic tried to created several hundred test when the existing logic tried to created several hundred test
treads! treads!
* apps/nshlib/nsh.h: Both CONFIG_LIBC_STRERROR and CONFIG_NSH_STRERROR
must be defined to use strerror() with NSH.

3
nshlib/Kconfig
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@ -148,9 +148,12 @@ config NSH_FILEIOSIZE
config NSH_STRERROR config NSH_STRERROR
bool "Use strerror()" bool "Use strerror()"
default n default n
depends on LIBC_STRERROR
---help--- ---help---
strerror(errno) makes more readable output but strerror() is strerror(errno) makes more readable output but strerror() is
very large and will not be used unless this setting is 'y' very large and will not be used unless this setting is 'y'
This setting depends upon the strerror() having been enabled
with LIBC_STRERROR.
config NSH_LINELEN config NSH_LINELEN
int "Max command line length" int "Max command line length"

4
nshlib/README.txt
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@ -915,7 +915,9 @@ NSH-Specific Configuration Settings
* CONFIG_NSH_STRERROR * CONFIG_NSH_STRERROR
strerror(errno) makes more readable output but strerror() is strerror(errno) makes more readable output but strerror() is
very large and will not be used unless this setting is 'y' very large and will not be used unless this setting is 'y'.
This setting depends upon the strerror() having been enabled
with CONFIG_LIBC_STRERROR.
* CONFIG_NSH_LINELEN * CONFIG_NSH_LINELEN
The maximum length of one command line and of one output line. The maximum length of one command line and of one output line.

7
nshlib/nsh.h
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@ -238,9 +238,14 @@
#define NSH_MAX_ARGUMENTS 6 #define NSH_MAX_ARGUMENTS 6
/* strerror() produces much nicer output but is, however, quite large and /* strerror() produces much nicer output but is, however, quite large and
* will only be used if CONFIG_NSH_STRERROR is defined. * will only be used if CONFIG_NSH_STRERROR is defined. Note that the strerror
* interface must also have been enabled with CONFIG_LIBC_STRERROR.
*/ */
#ifndef CONFIG_LIBC_STRERROR
# undef CONFIG_NSH_STRERROR
#endif
#ifdef CONFIG_NSH_STRERROR #ifdef CONFIG_NSH_STRERROR
# define NSH_ERRNO strerror(errno) # define NSH_ERRNO strerror(errno)
# define NSH_ERRNO_OF(err) strerror(err) # define NSH_ERRNO_OF(err) strerror(err)