Commit Graph

56 Commits

Author SHA1 Message Date
Peter Mitsis 08b353b8b4 minimal libc: stdlib.h no longer includes ctype.h
The libc 'ctype.h' header file is not supposed to be automatically
included when including 'stdlib.h'.

Change-Id: I821a9946894572a7b82804b1569b7b18c24316db
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-09 23:41:59 +00:00
Peter Mitsis df3c6b13ab c++: Update minimal libc headers
Updates the minimal libc headers for differences between the C and C++
languages.  This includes ...
   1. Conditionally defining "bool", "true" and "false" as they are
      already keywords in C++.
   2. Making the definition of NULL language dependent.
   3. Using the _Restrict macro instead of the restrict keyword as
      restrict exists in C, but not in C++.
   4. Changing the definition of size_t so that it is compatible with
      what the compiler expects when building the new operator stubs
      (as it varies by architecture).

Change-Id: I37ff058a60b90a05f96e9dd6f61d454d143041ce
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:22 -05:00
Peter Mitsis 497d0e53c4 libc: Consolidate size_t definitions
Consolidates the definitions of size_t in the minimal libc library.
This prevents code duplication.

Change-Id: I996990ad9093ebec1f9ba0045d14319e1a243e70
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:22 -05:00
Peter Mitsis b111d6c932 libc: Consolidate NULL definitions
Consolidates definitions of NULL in the minimal libc library.
This prevents code duplication.

Change-Id: Ia4a2bde1329d66e7c83afeab806a39b22704ab48
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:22 -05:00
Peter Mitsis a0e4568760 c++: Add extern "C" { } block to header files
Adds extern "C" { } blocks to header files so that they can be
safely used by C++ source files.

Change-Id: Ia4db0c36a5dac5d3de351184a297d2af0df64532
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-05 20:25:22 -05:00
Andre Guedes aa47bd8d6c newlib: Rename exit to _exit
This patch renames the 'exit' function from newlib/libc-hooks.c to
'_exit' since this is the correct name of the newlib system call.

This patch fixes some linking errors that occur when an applications
uses abort() or assert().

Change-Id: I593e5ec5dc0f84dbbebe4aceb38703256e140914
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
2016-02-05 20:25:16 -05:00
Vlad Lungu 8de1dac833 Add isgraph()/isprint()/isxdigit()/toupper()
Needed for porting various software

Change-Id: Ic5e89f4e606e46bd0c6de67cebb5b8e3159ab90e
Signed-off-by: Vlad Lungu <vlad.lungu@windriver.com>
2016-02-05 20:25:06 -05:00
Johan Hedberg 26484222ef lib/libc: Add implementation for isprint()
Add a simple implementation of isprint() which is used to test for a
printable character.

Change-Id: I0ebca10ec0f8e43ee245f6508c5b82c6e207bd32
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:25:03 -05:00
Benjamin Walsh fc1c0c3345 libc/minimal: use per-thread errno implementation
Provides proper access to the per-thread errno variable, by using the
_get_errno() call.

Users can now do:

  errno = EINVAL;
  printk("errno: %d\n", errno);

Change-Id: I0ef365199656d002623b39b7f45f14f561501375
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:24:58 -05:00
Allan Stephens bf223a8838 stdio: Fix bug in fputs()
The previous implementation mistakenly kept outputting the first
character of the string endlessly.

Change-Id: I299c627a52158218be8e88c952935edb87a636fe
Suggested-by: Tom Yeon <tom.yeon@windriver.com>
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:24:44 -05:00
Dan Kalowsky 070a6e3ec9 checkpatch: error - trailing_whitespace
Change-Id: Id096b9eabcd8468e9343ceae5444c7726a1c539e
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:35 -05:00
Dan Kalowsky 72f0a1314e checkpatch: warning - unnecssary_else
Change-Id: I6cc45cfcf09448b8fc988dc56219ea7560636af4
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:35 -05:00
Dan Kalowsky e45956c9a0 checkpatch: warning - leading_space
Change-Id: I34a54230bc4a63c8a4391d03ff530835910c3705
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:33 -05:00
Dan Kalowsky a92e48890c checkpatch: error - global_initialisers
Change-Id: Ib3f69be9f9273e57952a3ebceebc82d84c607c64
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:33 -05:00
Dan Kalowsky da67b29569 checkpatch: warning - block_comment_style
Change-Id: I6da43e41f9c6efee577b70513ec368ae3cce0144
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:24:33 -05:00
Dan Kalowsky e4bb957a00 checkpatch: error - pointer_location
Change-Id: I9ce224cb75ba21caecffd6747833257f748b5ecf
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:31 -05:00
Dan Kalowsky a60c866c70 checkpatch: error - open_brace
Change-Id: I434037ce969bcd1fc08bd4b407f9508773e64b1e
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:31 -05:00
Dan Kalowsky d04ae83e11 checkpatch: error - return_parentheses
Change-Id: If1964349a115043fa54bf48ebfe4b3c0a414ed57
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:31 -05:00
Dan Kalowsky 39063598db checkpatch: error - spacing
Change-Id: Ie6e1c43581dd4b0734625b3a4e59a4ca79619e99
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:31 -05:00
Dan Kalowsky 3bc4039601 checkpatch: error - switch_case_indent_level
Change-Id: I9cbd6ab80b0c0f170626bb1c6b2d07498038fb8f
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:31 -05:00
Dan Kalowsky 7cfc703711 checkpatch: error - trailing statements
Change-Id: I461134536da0288261b90f605a904ab3ea466340
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:31 -05:00
Dan Kalowsky 978851fb6a checkpatch: code_indent failures
Corrects the checkpatch code_indent failures

Change-Id: I2ff93b8907d3eddbaa543ccbd12aecef8af7f698
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
2016-02-05 20:24:31 -05:00
Javier B Perez Hernandez f7fffae8aa Change BSD-3 licenses to Apache 2
Change all the Intel and Wind River code license from BSD-3 to Apache 2.

Change-Id: Id8be2c1c161a06ea8a0b9f38e17660e11dbb384b
Signed-off-by: Javier B Perez Hernandez <javier.b.perez.hernandez@linux.intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-02-05 20:24:29 -05:00
Anas Nashif 196bb2e17f libc: use isdigit from ctype.h
Do not use local _isdigit function, use public isdigit
instead.

Change-Id: Ifc2721fc2def429de4934c9855f08dae30326694
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:16:15 -05:00
Anas Nashif f3f7eac765 Add MINIMAL_LIBC_EXTENDED to limit libc builds
This option adds optional libc functions that are not directly
used by the kernel but can be used for testing purposes.

This option is experimental.

Change-Id: Ia4dba718359c4f381047a5b52ebddb26d87ea75a
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:16:15 -05:00
Anas Nashif 751d90da85 libc: add support for strncasecmp function
Add function for comparing two strings ignoring case.

Change-Id: I2fc78c0a0d0f53e23566ffacd8dca3b23e386c26
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:16:15 -05:00
Anas Nashif 3e02a4a107 libc: add atoi to minimal libc
Change-Id: I589fe6599dec1a93e9700005742b8b34b42dee64
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:16:15 -05:00
Anas Nashif 9d648ebc48 libc: add strcat to minimal libc
Change-Id: Ifae9da3abb60d061a4211e0fac20037f72ca90e2
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:16:15 -05:00
Anas Nashif bddd72602c libc: add strtol and strtoul to minimal libc
Change-Id: Ia6198cd34ff486d8eb9d978a59d885cae06b60d3
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:16:15 -05:00
Anas Nashif 17f666bd89 libc: update ctype.h with isdigit, isspace, isalpha, isupper
Change-Id: Id8d865cde04d66367ddcf26995780767ad1b05f8
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:16:15 -05:00
Dirk Brandewie 6bc71f5933 libc: added errno global variable
Change-Id: I42ae30fe5826828cc4696f155caeb186a31f913b
Signed-off-by: Fabien Chereau <fabien.chereau@intel.com>
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
2016-02-05 20:16:01 -05:00
Jukka Rissanen efed446bee libc: Add memchr implementation
Needed by CoAP implementation in net/ip/er-coap

Change-Id: I724bc7569a29c35f386bbc301d883a000882de78
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:15:32 -05:00
Anas Nashif 42fbd4afd2 cleanup libc kconfig and use choice
This will allow adding more libc implementations in the future.
Also use the location of the include directory from the toolchain
settings.

Change-Id: Idae5e4ffd9b1bcb5e924da156df56e81f10c8842
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:15:25 -05:00
Anas Nashif 8d00ec5c4e build: build libc as object, not kbuild library (lib.a)
The way we build the libc files is not a real library that can be
used as a libc and makes managing the source files a bit
difficult, so lets revert back to building the c function files
like everything else in the system to avoid any confusion.

Change-Id: I4e998e37bc376522fe253c4aefefe7804597f0f2
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:45 -05:00
Anas Nashif f367f071b6 doxygen: add @brief and capitalize
Remove function name from comment and add @brief instead.
Also capitilize first letter.

Change-Id: Ib708b49bf02e5bc89b0066637a55874e659637e0
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:33 -05:00
Anas Nashif 1362e3c162 doxygen: RETURNS: -> @return
Previous comment style used RETRURNS:, use @return to comply
with javadoc style.

Change-Id: Ib1dffd92da1d97d60063ec5309b08049828f6661
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:32 -05:00
Anas Nashif ea0d0b220c doxygen: change comment style to match javadoc
The change replaces multiple asterisks to ** at
the beginning of comments and adds a space before
the asterisks at the beginning of lines.

Change-Id: I7656bde3bf4d9a31e38941e43b580520432dabc1
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:32 -05:00
Jukka Rissanen d639bb8c99 libc: Add tolower implementation
Add a tolower implementation that may be used in various parts of the
operating system.

Change-Id: I5aa855b41e2a09fcb077860b4580dbe1e6d4a093
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-05 20:14:14 -05:00
Allan Stephens 5a4be58707 Eliminate non-standard boolean type support
Revises kernel so that it uses the standard boolean type library
defined for C99, rather than having its own custom boolean type.

Also revises sample projects that used the non-standard type.

Change-Id: Ib41b7f836da25352aa5ae9dfbbfdd29739017b6f
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:14:14 -05:00
Anas Nashif 987d64c9ba newlib: Fix coding style and checkpatch warnings/errors
Change-Id: I96d2fc5232b5babdb5d849b603dcd2fa44c50de1
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:14 -05:00
Allan Stephens b52a09f536 Optimize performance of memset() and memcpy()
Builds upon the approach taken by the x86 version of k_memset()
and k_memcpy() APIs, which uses word-sized operations for greater
efficiency when manipulating large buffers. The algorithms used
here are architecture-independent.

Change-Id: I01ea8b22c8e6028f881e9b61ccc3a01e8ba4c02b
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
2016-02-05 20:14:12 -05:00
Anas Nashif e30e8969af libc: add license header
Change-Id: I5cc68ad996afd93faf0bdd25f5d6481c06bef29c
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:09 -05:00
Anas Nashif 19f0ff2756 Kbuild: enable toolchain newlib library instead of minimal libc
This options allows us to link against newlib instead of the
integrated minimal c library.

Change-Id: I20990354d74c08f2f6348f0aeea452b8f0f4c8e9
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:09 -05:00
Juan Manuel Cruz de1cec29d6 Kbuild: Build minimal libc as a static library.
This commit changes the way libc is built.
Instead of building a hierarchy of objects linked into the
microkernel, libc minimal is built as a static library and
linked against the microkernel binary.
The location of the libc is configurable with the variable
KLIBC_DIR. This gives the flexibility to build against a
different libc other than minimal.

Change-Id: I9c0b6a684a9f3b407861aa387727c45eceb269c4
Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@linux.intel.com>
2016-02-05 20:14:08 -05:00
Anas Nashif 4acde800b0 Kbuild: User kernel instead of TiMo
TiMo is very ambigous, be generic and call it kernel.

Change-Id: I66b3e436afbc89e874f31a89b98cc04aa821c787
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-02-05 20:14:07 -05:00
Juan Manuel Cruz d31a6a6f31 Creation of Makefiles for libc minimal.
This commit adds the Makefiles to create object-bundle for
libc minimal.

Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@linux.intel.com>
Change-Id: I9d15e0203664010ba4ef5cf3625b4075d7827ad7
2016-02-05 20:14:04 -05:00
Johan Hedberg afffab10a4 libc: Fix memcmp implementation
The previous implementation would read one byte past both buffers if
the buffers were equal. Make sure the pointers are not incremented
past the last byte. Also ensure that comparing zero bytes always
returns 0.

Change-Id: I5ef25d6bd2f7417b60102dc1c2602d8b23c4c1bc
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:00 -05:00
Johan Hedberg 7fc1c37c32 libc: Add memcmp implementation
Add a memcmp implementation that may be used in various parts of the
operating system.

Change-Id: I784bdcb26b924b2513ecd0b3ce1898195453f755
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-05 20:14:00 -05:00
Yonattan Louise b0b11989df Fix checkpatch issue - WARNING:LONG_LINE
Line's length should be shorten than 100 characters. This commit
fixes these lines separating them into two parts.

Change-Id: Ic68c9086866cd778187aa1465470acc0485e2271
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:13:59 -05:00
Yonattan Louise a8571c4b7f Fix checkpatch issue - WARNING:SPACING
Spaces between the function name and the open parenthesis are not allowed.
This commit fixes the case where only one open parenthesis with leading
whitespaces is present in the line.

	#!/bin/bash

	checkpatch_script="$VXMICRO_BASE/scripts/checkpatch.pl --mailback --no-tree -f --emacs --summary-file --show-types --ignore BRACES,PRINTK_WITHOUT_KERN_LEVEL,SPLIT_STRING --max-line-length=100 "

	for file in $(find ./ -name "*.[ch]" ! -path "./scripts/*" ! -path "./host/src/wrsconfig/*");
	do
		# fixing spaces between function name and open parenthesis
		for line in $(eval $checkpatch_script $file | grep "WARNING:SPACING: space prohibited between function name and open parenthesis '('" | cut -d":" -f2)
		do
			echo "$file : $line"
			sed -i ''$line' { /[ \t](.*[ \t](/ b skip_it s/[ \t]*(/(/ ; :skip_it }' $file;
		done;
	done;

Change-Id: I1e026eaee930e297374e5f2f725b78f29824dee3
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:13:54 -05:00