Hi Roberto, The "export" command packs header and object files generated during build, allowing the user to import them into custom applications and out-of-tree boards. Linker scripts and compiler/linker flags should not be exported because those, in general, are both board and application-specific. So when creating a custom out-of-tree application the user should maintain a custom linker script which better suits the application requirements.
In your case, you may either improve the build system from your external project to perform the preprocessing of the linker script files the same way the build system from upstream NuttX does, or you may simply modify your copies of the linker scripts and remove the preprocess directives (e.g. #include and #ifdef's) so that preprocessing is no longer necessary. Best regards, Gustavo. On Mon, Jan 9, 2023 at 4:57 AM Roberto Bucher <roberto.buc...@supsi.ch> wrote: > Thanks Gustavo > > sorry for late replay.. > > Why are not all these flags and the correct ld.tmp files exported when > we generate the nuttx-export file? > > It will be corrected in the future or do we modify our files that > automatically generate nuttx binaries to this? > > Thanks again > > Roberto > > > On 1/5/23 14:52, Gustavo Henrique Nihei wrote: > > Hi Roberto, > > > > Since https://github.com/apache/nuttx/pull/7208 the NuttX build system > > preprocesses every linker script file of a given configuration. > > We've recently updated the makefiles and linker scripts of every > supported > > chip from the ESP32 family to benefit from this. > > So you may need to update your out-of-tree build system to also > preprocess > > each linker script file (e.g. using "-E" argument from GCC) and pass the > > output files to xtensa-esp32-elf-ld. > > Notice that you'll need to provide all the include paths to GCC so that > it > > is able to find the headers required at the processing phase. > > > > As a reference, if you build "esp32-devkitc:nsh" with "make V=1", you'll > > notice that for each ".ld" file the build system will generate a new one > > suffixed with ".ld.tmp", which are the ones to be passed to the Linker: > > > > > > *CPP: > > > > /home/nihei/Projects/NuttX/nuttx/boards/xtensa/esp32/esp32-devkitc/../common/scripts/esp32_rom.ld-> > > > /home/nihei/Projects/NuttX/nuttx/boards/xtensa/esp32/esp32-devkitc/../common/scripts/esp32_rom.ld.tmp > > > > xtensa-esp32-elf-gcc -E -P -x c -isystem > > /home/nihei/Projects/NuttX/nuttx/include -D__NuttX__ -DNDEBUG > -D__KERNEL__ > > -I /home/nihei/Projects/NuttX/nuttx/arch/xtensa/src/chip -I > > /home/nihei/Projects/NuttX/nuttx/arch/xtensa/src/common -I > > /home/nihei/Projects/NuttX/nuttx/arch/xtensa/src/lx6 -I > > /home/nihei/Projects/NuttX/nuttx/sched > > > /home/nihei/Projects/NuttX/nuttx/boards/xtensa/esp32/esp32-devkitc/../common/scripts/esp32_rom.ld > > -o > > > > /home/nihei/Projects/NuttX/nuttx/boards/xtensa/esp32/esp32-devkitc/../common/scripts/esp32_rom.ld.tmp* > > > > > > *CPP: > > > > /home/nihei/Projects/NuttX/nuttx/boards/xtensa/esp32/esp32-devkitc/../common/scripts/flat_memory.ld-> > > > /home/nihei/Projects/NuttX/nuttx/boards/xtensa/esp32/esp32-devkitc/../common/scripts/flat_memory.ld.tmpxtensa-esp32-elf-gcc > > -E -P -x c -isystem /home/nihei/Projects/NuttX/nuttx/include -D__NuttX__ > > -DNDEBUG -D__KERNEL__ -I > > /home/nihei/Projects/NuttX/nuttx/arch/xtensa/src/chip -I > > /home/nihei/Projects/NuttX/nuttx/arch/xtensa/src/common -I > > /home/nihei/Projects/NuttX/nuttx/arch/xtensa/src/lx6 -I > > /home/nihei/Projects/NuttX/nuttx/sched > > > /home/nihei/Projects/NuttX/nuttx/boards/xtensa/esp32/esp32-devkitc/../common/scripts/flat_memory.ld > > -o > > > > /home/nihei/Projects/NuttX/nuttx/boards/xtensa/esp32/esp32-devkitc/../common/scripts/flat_memory.ld.tmp* > > > > > > *CPP: > > > > /home/nihei/Projects/NuttX/nuttx/boards/xtensa/esp32/esp32-devkitc/../common/scripts/legacy_sections.ld-> > > > /home/nihei/Projects/NuttX/nuttx/boards/xtensa/esp32/esp32-devkitc/../common/scripts/legacy_sections.ld.tmp > > > > xtensa-esp32-elf-gcc -E -P -x c -isystem > > /home/nihei/Projects/NuttX/nuttx/include -D__NuttX__ -DNDEBUG > -D__KERNEL__ > > -I /home/nihei/Projects/NuttX/nuttx/arch/xtensa/src/chip -I > > /home/nihei/Projects/NuttX/nuttx/arch/xtensa/src/common -I > > /home/nihei/Projects/NuttX/nuttx/arch/xtensa/src/lx6 -I > > /home/nihei/Projects/NuttX/nuttx/sched > > > /home/nihei/Projects/NuttX/nuttx/boards/xtensa/esp32/esp32-devkitc/../common/scripts/legacy_sections.ld > > -o > > > > /home/nihei/Projects/NuttX/nuttx/boards/xtensa/esp32/esp32-devkitc/../common/scripts/legacy_sections.ld.tmp* > > > > Best regards, > > Gustavo. > > > > On Thu, Jan 5, 2023 at 4:31 AM Roberto Bucher <roberto.buc...@supsi.ch> > > wrote: > > > >> Hi > >> > >> I have a new configuration for an Olimex-ESP32-PoE board. I can compile > >> and build the nuttx flash without problems. > >> > >> I did a > >> > >> make export > >> > >> and putted the generated nuttx-export folder into another project > >> (pysimCoder). The Makefile of the project, which correctly works with my > >> STM32 boards, fails the compilation of the image for esp32 with this > >> strange message: > >> > >> .... > >> xtensa-esp32-elf-ld -nostdlib --gc-sections --cref > >> -Map=/home/bucher/sviluppo/NUTTX/nuttx/nuttx.map -L > >> /home/bucher/CACSD/pysimCoder/CodeGen/nuttx/nuttx-export/libs > >> --entry=__start -T > >> > /home/bucher/CACSD/pysimCoder/CodeGen/nuttx/nuttx-export/scripts/esp32_rom.ld > >> > >> -T > >> > /home/bucher/CACSD/pysimCoder/CodeGen/nuttx/nuttx-export/scripts/flat_memory.ld > >> > >> -T > >> > /home/bucher/CACSD/pysimCoder/CodeGen/nuttx/nuttx-export/scripts/legacy_sections.ld > >> > >> \ > >> -o ../test \ > >> nuttx_main.o test.o nuttx_main-builtintab.o > >> /home/bucher/CACSD/pysimCoder/CodeGen/nuttx/lib/libpyblk.a --start-group > >> -lsched -ldrivers -lboards -lc -lmm -larch -lxx -lapps -lnet -lfs > >> -lbinfmt -lwireless -lboard -lboard > >> > /home/bucher/sviluppo/GITHUB/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/11.2.0/libgcc.a > >> > >> --end-group > >> > *xtensa-esp32-elf-ld:/home/bucher/CACSD/pysimCoder/CodeGen/nuttx/nuttx-export/scripts/flat_memory.ld:32: > >> > >> ignoring invalid character `#' in expression** > >> > **xtensa-esp32-elf-ld:/home/bucher/CACSD/pysimCoder/CodeGen/nuttx/nuttx-export/scripts/flat_memory.ld:32: > >> > >> syntax error** > >> **make: *** [Makefile:133: ../test] Error 1** > >> *.... > >> > >> The line 32 of the script "flat_memory.ld" contains simply the line > >> > >> #include <nuttx/config.h> > >> > >> Hints are welcomed! > >> > >> Thanks in advance > >> > >> Roberto > > > > > > -- Gustavo Henrique Nihei
