nicolas71640 opened a new issue, #11863:
URL: https://github.com/apache/nuttx/issues/11863
I am trying to build my own app using the export target with the simulator.
And I've run into few issues :
To be clear, here's the procedure I following :
1. ./tools/configure.sh sim:nsh
2. make export
3. tar -xf nuttx-export-12.4.0.tar.gz
4. My CMakeList.txt file :
```
cmake_minimum_required(VERSION 3.16)
project(test)
include(../nuttx-export-12.4.0/scripts/toolchain.cmake)
add_executable(test main.c)
```
5. cmake . && make and here's the output
`ld: unrecognized option '-Wl,--gc-sections'`
Indeed in the target.cmake of the export the LDFLAGS are :
`"-Wl,--gc-sections -Wl,-Ttext-segment=0x400000
-Wl,-Map=/home/nuttxspace/nuttx/nuttx.map")`
Which can not work because we passing the -Wl argument directly to the
linker... First issue.
6. To go further, I have just modified the target.cmake, removing the -Wl
before the arguments.
Then the linker returns this error :
`ld: read in flex scanner failed`
With some research, this error is a the way of the linker to say that it
can't read some arguments. Some tests showed me that the -T{LINKER_SCRIPT}
argument (toolchain.cmake) was the culprit.
Here's the line where we set the LINKER_SCRIPT variable :
`set(LINKER_SCRIPT ${NUTTX_PATH}/scripts/${LDNAME})`
Problem, in the target.cmake the ${LDNAME} is empty:
`set(LDNAME "")`
The LDNAME variable is set in the Export.mk file :
```
ifneq ($(ARCHSCRIPT),)
LDPATH = $(call CONVERT_PATH,$(ARCHSCRIPT))
LDNAME = ${notdir ${LDPATH}}
LDDIR = ${dir ${LDPATH}}
endif
```
For now, I've stopped there the investigation, but I will go further in
this. These errors make me think that the simulator export is bugged. What do
you think ? Is it possible that it isn't really used and it is now outdated ?
Or is there something I'm doing wrong ?
By the way, without the export, it works perfectly well (tested with nsh).
ping @leducp
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