Conflicts:
	readme.md
This commit is contained in:
James Crosby 2016-02-26 12:32:13 +00:00
commit 3dd151a252
2 changed files with 27 additions and 0 deletions

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@ -69,6 +69,9 @@ set(CMAKE_MODULE_LINKER_FLAGS_INIT
"-fno-exceptions -fno-unwind-tables -Wl,--gc-sections -Wl,--sort-common -Wl,--sort-section=alignment" "-fno-exceptions -fno-unwind-tables -Wl,--gc-sections -Wl,--sort-common -Wl,--sort-section=alignment"
) )
set(CMAKE_EXE_LINKER_FLAGS_INIT "${CMAKE_MODULE_LINKER_FLAGS_INIT} -Wl,-wrap,main") set(CMAKE_EXE_LINKER_FLAGS_INIT "${CMAKE_MODULE_LINKER_FLAGS_INIT} -Wl,-wrap,main")
if((NOT DEFINED YOTTA_CFG_GCC_PRINTF_FLOAT) OR (YOTTA_CFG_GCC_PRINTF_FLOAT))
set(CMAKE_EXE_LINKER_FLAGS_INIT "${CMAKE_EXE_LINKER_FLAGS_INIT} -Wl,-u,_printf_float")
endif()
# Set the compiler to ARM-GCC # Set the compiler to ARM-GCC
if(CMAKE_VERSION VERSION_LESS "3.5.0") if(CMAKE_VERSION VERSION_LESS "3.5.0")

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@ -50,3 +50,27 @@ yotta build --config testconfig.json
``` ```
yotta build --config '"debug" : { "options" : { "coverage" : { "modules" : { "sockets" : true } } } }' yotta build --config '"debug" : { "options" : { "coverage" : { "modules" : { "sockets" : true } } } }'
``` ```
## Configuring floating point support in `printf`
Floating point support in `printf` is enabled by default by this target
description. (Although derived targets may override this behaviour through the
[yotta config](http://yottadocs.mbed.com/reference/config.html) system.)
If you need to change the default behaviour (perhaps because the increase in
code-size is unacceptable to you), then you can do this in the `config` section
of a target description, or in an application's `config.json` file:
```JSON
"gcc": {
"printf-float": false
}
```
Or:
```JSON
"gcc": {
"printf-float": true
}
```