[ECOS] STM32F4 and Dynamic loading.

[Valentin BOUSSON <ml-ecos@belphegor.eu>]

Hello again,
Thank you for your help.

I encounter anotger problem that could signify the end between eCos and 
I for my project... :(
After having some simple examples working, i tried to make one using 
Dynamic ELF loading (dlopen).

So I tried first to compile eCos from the template stm32f4discovery +  
posix (that compiles), and then adding the package "Dynamic Loder". A 
conflict is resolved, setting the header to <cyg/loader/dlfcn>,
but then with no more conflict the command Build / Library crash and 
doesn't want to compile "services/loader/current/src/loader.cxx"


Do you see what does it come from ? I see in the traces some undefined 
macros, but It doesn't seems to be the main problem.

By the way, I have seen through experimentations in order to resolve 
this issue, a difference between CYGPKG_HAL_CORTEXM and CYGPKG_HAL_ARM.
So I would know : doesn't a cortexm platform be considered as an ARM one 
? Why not ? Is it a cause of my problem ?


Cheers, and thank you again.

Valentin BOUSSON




end of traces :
==========

In file included from 
~/ecos/packages/services/loader/current/src/loader.cxx:65:
~/ecos_tests/ecos_install/include/cyg/loader/loader.hxx:351: error: 
invalid use of incomplete type ‘struct Cyg_LoadObject_Proc’
~/ecos_tests/ecos_install/include/cyg/loader/loader.hxx:77: error: 
forward declaration of ‘struct Cyg_LoadObject_Proc’
make[1]: Leaving directory `~/ecos_tests/ecos_build/services/loader/current'
~/ecos_tests/ecos_install/include/cyg/loader/loader.hxx: In constructor 
‘Cyg_LoadObject::Cyg_LoadObject()’:
make: Leaving directory `~/ecos_tests/ecos_build'
~/ecos_tests/ecos_install/include/cyg/loader/loader.hxx:357: error: type 
‘Cyg_LoadObject_Proc’ is not a direct base of ‘Cyg_LoadObject’

~/ecos_tests/ecos_install/include/cyg/loader/loader.hxx: In constructor 
‘Cyg_LoadObject::Cyg_LoadObject(Cyg_LoaderStream&, cyg_uint32, 
Cyg_LoaderMemAlloc*, Cyg_LoaderMemBlock*)’:
~/ecos_tests/ecos_install/include/cyg/loader/loader.hxx:365: error: type 
‘Cyg_LoadObject_Proc’ is not a direct base of ‘Cyg_LoadObject’
In file included from 
~/ecos/packages/services/loader/current/src/dload.cxx:66:
~/ecos_tests/ecos_install/include/cyg/loader/loader.hxx:351: error: 
invalid use of incomplete type ‘struct Cyg_LoadObject_Proc’
~/ecos_tests/ecos_install/include/cyg/loader/loader.hxx:77: error: 
forward declaration of ‘struct Cyg_LoadObject_Proc’
~/ecos_tests/ecos_install/include/cyg/loader/loader.hxx: In constructor 
‘Cyg_LoadObject::Cyg_LoadObject()’:
~/ecos_tests/ecos_install/include/cyg/loader/loader.hxx:357: error: type 
‘Cyg_LoadObject_Proc’ is not a direct base of ‘Cyg_LoadObject’
~/ecos_tests/ecos_install/include/cyg/loader/loader.hxx: In constructor 
‘Cyg_LoadObject::Cyg_LoadObject(Cyg_LoaderStream&, cyg_uint32, 
Cyg_LoaderMemAlloc*, Cyg_LoaderMemBlock*)’:
~/ecos_tests/ecos_install/include/cyg/loader/loader.hxx:365: error: type 
‘Cyg_LoadObject_Proc’ is not a direct base of ‘Cyg_LoadObject’
~/ecos/packages/services/loader/current/src/loader.cxx: In constructor 
‘Cyg_Loader::Cyg_Loader(Cyg_LoaderMemAlloc*)’:
~/ecos/packages/services/loader/current/src/loader.cxx:126: error: no 
matching function for call to 
‘Cyg_CList_T<Cyg_LoadObject>::add_head(Cyg_LoadObject*&)’
~/ecos_tests/ecos_install/include/cyg/infra/clist.hxx:173: note: 
candidates are: void Cyg_CList::add_head(Cyg_DNode*)
~/ecos/packages/services/loader/current/src/loader.cxx:128: error: 
‘class Cyg_LoadObject’ has no member named ‘get_error’
~/ecos/packages/services/loader/current/src/loader.cxx: In member 
function ‘cyg_code Cyg_Loader::load(Cyg_LoaderStream&, cyg_uint32, 
Cyg_LoadObject**)’:
~/ecos/packages/services/loader/current/src/loader.cxx:160: error: 
‘class Cyg_LoadObject’ has no member named ‘get_error’
~/ecos/packages/services/loader/current/src/loader.cxx:168: error: no 
matching function for call to 
‘Cyg_CList_T<Cyg_LoadObject>::add_tail(Cyg_LoadObject*&)’
~/ecos_tests/ecos_install/include/cyg/infra/clist.hxx:209: note: 
candidates are: void Cyg_CList::add_tail(Cyg_DNode*)
~/ecos/packages/services/loader/current/src/loader.cxx:175: error: 
‘class Cyg_LoadObject’ has no member named ‘get_error’
~/ecos/packages/services/loader/current/src/loader.cxx:186: error: 
‘class Cyg_LoadObject’ has no member named ‘get_error’
~/ecos/packages/services/loader/current/src/loader.cxx:193: error: no 
matching function for call to 
‘Cyg_CList_T<Cyg_LoadObject>::remove(Cyg_LoadObject*&)’
~/ecos_tests/ecos_install/include/cyg/infra/clist.hxx:258: note: 
candidates are: void Cyg_CList::remove(Cyg_DNode*)
~/ecos/packages/services/loader/current/src/loader.cxx: In member 
function ‘CYG_ADDRESS Cyg_Loader::hash_lookup_addr(const char*)’:
~/ecos/packages/services/loader/current/src/loader.cxx:253: error: 
‘class Cyg_LoadObject’ has no member named ‘hash_lookup_addr’
~/ecos/packages/services/loader/current/src/loader.cxx:258: error: 
‘class Cyg_LoadObject’ has no member named ‘get_next’
~/ecos/packages/services/loader/current/src/loader.cxx: In constructor 
‘Cyg_LoadObject_Base::Cyg_LoadObject_Base(Cyg_LoaderStream&, cyg_uint32, 
Cyg_LoaderMemAlloc*)’:
~/ecos/packages/services/loader/current/src/loader.cxx:331: error: 
‘CYG_ELF_MACHINE’ was not declared in this scope
~/ecos/packages/services/loader/current/src/dload.cxx: In function 
‘void* dlsym(void*, const char*)’:
~/ecos/packages/services/loader/current/src/dload.cxx:178: error: ‘class 
Cyg_LoadObject’ has no member named ‘symbol’
make[1]: *** [src/dload.o.d] Error 1
make[1]: *** Waiting for unfinished jobs....
~/ecos/packages/services/loader/current/src/loader.cxx: In member 
function ‘void Cyg_LoadObject::relocate()’:
~/ecos/packages/services/loader/current/src/loader.cxx:767: error: ‘rel’ 
was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:770: error: 
‘relsize’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:770: error: 
‘error’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:770: error: 
‘relent’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:773: error: 
‘apply_rel’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:777: error: 
‘error’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:777: error: 
‘rela’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:780: error: 
‘relasize’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:780: error: 
‘relaent’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:784: error: 
‘apply_rela’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx: In member 
function ‘void Cyg_LoadObject::relocate_plt()’:
~/ecos/packages/services/loader/current/src/loader.cxx:797: error: 
‘pltrel’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:799: error: 
‘jmprel’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:800: error: 
‘pltrelsz’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:800: error: 
‘error’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:803: error: 
‘apply_rel’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:807: error: 
‘error’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:807: error: 
‘pltrel’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:809: error: 
‘jmprel’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:810: error: 
‘pltrelsz’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx:814: error: 
‘apply_rela’ was not declared in this scope
~/ecos/packages/services/loader/current/src/loader.cxx: In member 
function ‘virtual cyg_code Cyg_LoaderStream_File::seek(CYG_ADDRWORD)’:
~/ecos/packages/services/loader/current/src/loader.cxx:1045: warning: 
comparison between signed and unsigned integer expressions
make[1]: *** [src/loader.o.d] Error 1
make: *** [build] Error 2

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