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libc: rework libc selection and reduce Kconfigs Moved all libc Kconfigs to where the code is and remove the default Kconfig for selecting the minimal libc. Minimal libc is now the default if nothing else is configured in. Removed the options for extended libc, this obviously was restricting features in the minimal libc without a good reason, most of the functions are available directly when using newlib, so there is no reason why we need to restrict those in minimal libc. Jira: ZEP-1440 Change-Id: If0a3adf4314e2ebdf0e139dee3eb4f47ce07aa89 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-16 00:16:55 +08:00
# Kconfig - C library
#
# Copyright (c) 2016 Intel Corporation
#
license: Replace Apache boilerplate with SPDX tag Replace the existing Apache 2.0 boilerplate header with an SPDX tag throughout the zephyr code tree. This patch was generated via a script run over the master branch. Also updated doc/porting/application.rst that had a dependency on line numbers in a literal include. Manually updated subsys/logging/sys_log.c that had a malformed header in the original file. Also cleanup several cases that already had a SPDX tag and we either got a duplicate or missed updating. Jira: ZEP-1457 Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c Signed-off-by: David B. Kinder <david.b.kinder@intel.com> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-01-19 09:01:01 +08:00
# SPDX-License-Identifier: Apache-2.0
libc: rework libc selection and reduce Kconfigs Moved all libc Kconfigs to where the code is and remove the default Kconfig for selecting the minimal libc. Minimal libc is now the default if nothing else is configured in. Removed the options for extended libc, this obviously was restricting features in the minimal libc without a good reason, most of the functions are available directly when using newlib, so there is no reason why we need to restrict those in minimal libc. Jira: ZEP-1440 Change-Id: If0a3adf4314e2ebdf0e139dee3eb4f47ce07aa89 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-16 00:16:55 +08:00
#
menu "C Library"
libc: some architectures do not require baremetal libc When building a native application, we use the host provided libc, so do not build minimal libc or newlib. Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com> Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-12-22 08:26:00 +08:00
depends on !NATIVE_APPLICATION
libc: rework libc selection and reduce Kconfigs Moved all libc Kconfigs to where the code is and remove the default Kconfig for selecting the minimal libc. Minimal libc is now the default if nothing else is configured in. Removed the options for extended libc, this obviously was restricting features in the minimal libc without a good reason, most of the functions are available directly when using newlib, so there is no reason why we need to restrict those in minimal libc. Jira: ZEP-1440 Change-Id: If0a3adf4314e2ebdf0e139dee3eb4f47ce07aa89 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-16 00:16:55 +08:00
config NEWLIB_LIBC
Kconfig: Use a short, consistent style for prompts Consistently use config FOO bool/int/hex/string "Prompt text" instead of config FOO bool/int/hex/string prompt "Prompt text" (...and a bunch of other variations that e.g. swapped the order of the type and the 'prompt', or put other properties between them). The shorthand is fully equivalent to using 'prompt'. It saves lines and avoids tricking people into thinking there is some semantic difference. Most of the grunt work was done by a modified version of https://unix.stackexchange.com/questions/26284/ how-can-i-use-sed-to-replace-a-multi-line-string/26290#26290, but some of the rarer variations had to be converted manually. Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2018-08-14 22:19:20 +08:00
bool "Build with newlib c library"
libc: rework libc selection and reduce Kconfigs Moved all libc Kconfigs to where the code is and remove the default Kconfig for selecting the minimal libc. Minimal libc is now the default if nothing else is configured in. Removed the options for extended libc, this obviously was restricting features in the minimal libc without a good reason, most of the functions are available directly when using newlib, so there is no reason why we need to restrict those in minimal libc. Jira: ZEP-1440 Change-Id: If0a3adf4314e2ebdf0e139dee3eb4f47ce07aa89 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-16 00:16:55 +08:00
help
kconfig: fix help syntax and add spaces Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-12-13 23:08:21 +08:00
Build with newlib library. The newlib library is expected to be
part of the SDK in this case.
libc: rework libc selection and reduce Kconfigs Moved all libc Kconfigs to where the code is and remove the default Kconfig for selecting the minimal libc. Minimal libc is now the default if nothing else is configured in. Removed the options for extended libc, this obviously was restricting features in the minimal libc without a good reason, most of the functions are available directly when using newlib, so there is no reason why we need to restrict those in minimal libc. Jira: ZEP-1440 Change-Id: If0a3adf4314e2ebdf0e139dee3eb4f47ce07aa89 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-16 00:16:55 +08:00
newlib: fix heap user mode access for MPU devices MPU devices that enforce power-of-two alignment now specify the size of the buffer used for the newlib heap. This buffer will be properly aligned and a pointer exposed in a kernel header, such that it can be added to a user thread's memory domain configuration if necessary. MPU devices that don't have these restrictions allocate the heap as normal. In all cases, if an MPU/MMU region needs to be programmed, the z_newlib_get_heap_bounds() API will return the necessary information. Given how precious MPU regions are, no automatic programming of the MPU is done; applications will need to do this as needed in their memory domain configurations. On x86, the x86 MMU-specific code has been moved to arch/x86 using the new z_newlib_get_heap_bounds() API. Fixes: #6814 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2018-05-10 07:36:44 +08:00
config NEWLIB_LIBC_ALIGNED_HEAP_SIZE
Kconfig: Use a short, consistent style for prompts Consistently use config FOO bool/int/hex/string "Prompt text" instead of config FOO bool/int/hex/string prompt "Prompt text" (...and a bunch of other variations that e.g. swapped the order of the type and the 'prompt', or put other properties between them). The shorthand is fully equivalent to using 'prompt'. It saves lines and avoids tricking people into thinking there is some semantic difference. Most of the grunt work was done by a modified version of https://unix.stackexchange.com/questions/26284/ how-can-i-use-sed-to-replace-a-multi-line-string/26290#26290, but some of the rarer variations had to be converted manually. Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2018-08-14 22:19:20 +08:00
int "Newlib aligned heap size"
newlib: Fix typo in Kconfig related to NEWLIB_LIBC_ALIGNED_HEAP_SIZE When we introduced NEWLIB_LIBC_ALIGNED_HEAP_SIZE in commit 42a2c96422cbeb46f27074960b0898d06658fdcd. We accidently had the Kconfig symbol depend on CONFIG_MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT the leading 'CONFIG_' shouldn't exist. Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-05-23 20:34:36 +08:00
depends on MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT
newlib: fix heap user mode access for MPU devices MPU devices that enforce power-of-two alignment now specify the size of the buffer used for the newlib heap. This buffer will be properly aligned and a pointer exposed in a kernel header, such that it can be added to a user thread's memory domain configuration if necessary. MPU devices that don't have these restrictions allocate the heap as normal. In all cases, if an MPU/MMU region needs to be programmed, the z_newlib_get_heap_bounds() API will return the necessary information. Given how precious MPU regions are, no automatic programming of the MPU is done; applications will need to do this as needed in their memory domain configurations. On x86, the x86 MMU-specific code has been moved to arch/x86 using the new z_newlib_get_heap_bounds() API. Fixes: #6814 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2018-05-10 07:36:44 +08:00
depends on NEWLIB_LIBC
depends on USERSPACE
default 0
help
If user mode is enabled, and MPU hardware has requirements that
regions be sized to a power of two and aligned to their size,
and user mode threads need to access this heap, then this is necessary
to properly define an MPU region for the heap.
If this is left at 0, then remaining system RAM will be used for this
area and it may not be possible to program it as an MPU region.
libc: rework libc selection and reduce Kconfigs Moved all libc Kconfigs to where the code is and remove the default Kconfig for selecting the minimal libc. Minimal libc is now the default if nothing else is configured in. Removed the options for extended libc, this obviously was restricting features in the minimal libc without a good reason, most of the functions are available directly when using newlib, so there is no reason why we need to restrict those in minimal libc. Jira: ZEP-1440 Change-Id: If0a3adf4314e2ebdf0e139dee3eb4f47ce07aa89 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-16 00:16:55 +08:00
config NEWLIB_LIBC_FLOAT_PRINTF
bool "Build with newlib float printf"
depends on NEWLIB_LIBC
help
kconfig: fix help syntax and add spaces Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-12-13 23:08:21 +08:00
Build with floating point printf enabled. This will increase the size of
the image.
libc: rework libc selection and reduce Kconfigs Moved all libc Kconfigs to where the code is and remove the default Kconfig for selecting the minimal libc. Minimal libc is now the default if nothing else is configured in. Removed the options for extended libc, this obviously was restricting features in the minimal libc without a good reason, most of the functions are available directly when using newlib, so there is no reason why we need to restrict those in minimal libc. Jira: ZEP-1440 Change-Id: If0a3adf4314e2ebdf0e139dee3eb4f47ce07aa89 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-16 00:16:55 +08:00
config NEWLIB_LIBC_FLOAT_SCANF
bool "Build with newlib float scanf"
depends on NEWLIB_LIBC
help
kconfig: fix help syntax and add spaces Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-12-13 23:08:21 +08:00
Build with floating point scanf enabled. This will increase the size of
the image.
libc: rework libc selection and reduce Kconfigs Moved all libc Kconfigs to where the code is and remove the default Kconfig for selecting the minimal libc. Minimal libc is now the default if nothing else is configured in. Removed the options for extended libc, this obviously was restricting features in the minimal libc without a good reason, most of the functions are available directly when using newlib, so there is no reason why we need to restrict those in minimal libc. Jira: ZEP-1440 Change-Id: If0a3adf4314e2ebdf0e139dee3eb4f47ce07aa89 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-16 00:16:55 +08:00
libc: Kconfig: Move STDOUT_CONSOLE from subsys/debug This option is clearly not related to debugging, but affects libc features. Fixes: #5566 Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2018-01-05 21:06:55 +08:00
config STDOUT_CONSOLE
Kconfig: Use a short, consistent style for prompts Consistently use config FOO bool/int/hex/string "Prompt text" instead of config FOO bool/int/hex/string prompt "Prompt text" (...and a bunch of other variations that e.g. swapped the order of the type and the 'prompt', or put other properties between them). The shorthand is fully equivalent to using 'prompt'. It saves lines and avoids tricking people into thinking there is some semantic difference. Most of the grunt work was done by a modified version of https://unix.stackexchange.com/questions/26284/ how-can-i-use-sed-to-replace-a-multi-line-string/26290#26290, but some of the rarer variations had to be converted manually. Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2018-08-14 22:19:20 +08:00
bool "Send stdout to console"
libc: Kconfig: Move STDOUT_CONSOLE from subsys/debug This option is clearly not related to debugging, but affects libc features. Fixes: #5566 Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2018-01-05 21:06:55 +08:00
depends on CONSOLE_HAS_DRIVER
lib: kconfig: Remove redundant 'default n' properties Bool symbols implicitly default to 'n'. A 'default n' can make sense e.g. in a Kconfig.defconfig file, if you want to override a 'default y' on the base definition of the symbol. It isn't used like that on any of these symbols though. Also simplify the default on STDOUT_CONSOLE. Defaults can be arbitrary expressions, not just fixed values. Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2018-06-22 09:54:05 +08:00
default NEWLIB_LIBC
libc: Kconfig: Move STDOUT_CONSOLE from subsys/debug This option is clearly not related to debugging, but affects libc features. Fixes: #5566 Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2018-01-05 21:06:55 +08:00
help
This option directs standard output (e.g. printf) to the console
device, rather than suppressing it entirely. See also EARLY_CONSOLE
option.
libc: minimal: add malloc functions We base the malloc() implementation on a common sys_mem_pool whose size is specified by Kconfig. Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2018-07-13 06:00:58 +08:00
# Minimal libc options
config MINIMAL_LIBC_MALLOC_ARENA_SIZE
Kconfig: Use a short, consistent style for prompts Consistently use config FOO bool/int/hex/string "Prompt text" instead of config FOO bool/int/hex/string prompt "Prompt text" (...and a bunch of other variations that e.g. swapped the order of the type and the 'prompt', or put other properties between them). The shorthand is fully equivalent to using 'prompt'. It saves lines and avoids tricking people into thinking there is some semantic difference. Most of the grunt work was done by a modified version of https://unix.stackexchange.com/questions/26284/ how-can-i-use-sed-to-replace-a-multi-line-string/26290#26290, but some of the rarer variations had to be converted manually. Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2018-08-14 22:19:20 +08:00
int "Size of the minimal libc malloc arena"
libc: minimal: add malloc functions We base the malloc() implementation on a common sys_mem_pool whose size is specified by Kconfig. Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2018-07-13 06:00:58 +08:00
depends on !NEWLIB_LIBC
default 0
help
Indicate the size of the memory arena used for minimal libc's
malloc() implementation. This size value must be compatible with
a sys_mem_pool definition with nmax of 1 and minsz of 16.
libc: rework libc selection and reduce Kconfigs Moved all libc Kconfigs to where the code is and remove the default Kconfig for selecting the minimal libc. Minimal libc is now the default if nothing else is configured in. Removed the options for extended libc, this obviously was restricting features in the minimal libc without a good reason, most of the functions are available directly when using newlib, so there is no reason why we need to restrict those in minimal libc. Jira: ZEP-1440 Change-Id: If0a3adf4314e2ebdf0e139dee3eb4f47ce07aa89 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-16 00:16:55 +08:00
endmenu