Has anyone tried to port Mono to RTEMS

[xuelin.tian at qkmtech.com]

I do not know, and I just comment the check function in configure.ac. 
And another error comes up... still working on it...



Best wishes,
xuelin.tian at qkmtech.com
 
From: Chris Johns
Date: 2017-07-25 10:02
To: xuelin.tian at qkmtech.com; Russell Haley; Joel Sherrill
CC: users at rtems.org
Subject: Re: Has anyone tried to port Mono to RTEMS
On 25/07/2017 11:53, xuelin.tian at qkmtech.com wrote:
> This is the config log, https://pastebin.com/Nc4EQy7D 
> You can start from Line 11218.
> 
> And the check function from configure.ac is shown below:
> dnl ********************************
> dnl *** Checks for timezone stuff **
> dnl ********************************
> AC_CACHE_CHECK(for tm_gmtoff in struct tm, ac_cv_struct_tm_gmtoff,
> AC_TRY_COMPILE([
> #include <time.h>
> ], [
> struct tm tm;
> tm.tm_gmtoff = 1;
> ], ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no))
> if test $ac_cv_struct_tm_gmtoff = yes; then
> AC_DEFINE(HAVE_TM_GMTOFF, 1, [Have tm_gmtoff])
> else
> AC_CACHE_CHECK(for timezone variable, ac_cv_var_timezone,
> AC_TRY_COMPILE([
> #include <time.h>
> ], [
> timezone = 1;
> ], ac_cv_var_timezone=yes, ac_cv_var_timezone=no))
> if test $ac_cv_var_timezone = yes; then
> AC_DEFINE(HAVE_TIMEZONE, 1, [Have timezone variable])
> else
> AC_ERROR(unable to find a way to determine timezone)
> fi
> fi
 
The log says (saving everyone from pastebin ads):
 
configure:22637: result: no
configure:22647: checking for tm_gmtoff in struct tm
configure:22668: arm-rtems4.11-gcc -c -qrtems
-B/opt/rtems-4.11.1-release/4.11-bsp/arm-rtems4.11/lib
-B/opt/rtems-4.11.1-release/4.11-bsp/arm-rtems4.11/xilinx_zynq_zedboard/lib/
--specs bsp_specs -march=armv7-a -mthumb -mfpu=neon -mfloat-abi=hard
-mtune=cortex-a9 -std=gnu99 -fno-strict-aliasing -fwrapv -Wno-zero-length-array
-DMONO_DLL_EXPORT -Wno-unused-but-set-variable -g -Wall -Wunused
-Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes
-Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-cast-qual
-Wwrite-strings -Wno-switch -Wno-switch-enum -Wno-unused-value -Wno-attributes
-DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP -DUSE_MUNMAP -g -Wall
-Wunused -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes
-Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-cast-qual
-Wwrite-strings -Wno-switch -Wno-switch-enum -Wno-unused-value -Wno-attributes
conftest.c >&5
conftest.c:81:1: warning: function declaration isn't a prototype
[-Wstrict-prototypes]
main ()
^
conftest.c: In function 'main':
conftest.c:85:6: error: 'struct tm' has no member named 'tm_gmtoff'
    tm.tm_gmtoff = 1;
      ^
It looks like we do not have __TM_GMTOFF defined so do not currently have this
field supported. The second test is for `timezone`:
 
configure:22675: result: no
configure:22682: checking for timezone variable
configure:22702: arm-rtems4.11-gcc -c -qrtems
-B/opt/rtems-4.11.1-release/4.11-bsp/arm-rtems4.11/lib
-B/opt/rtems-4.11.1-release/4.11-bsp/arm-rtems4.11/xilinx_zynq_zedboard/lib/
--specs bsp_specs -march=armv7-a -mthumb -mfpu=neon -mfloat-abi=hard
-mtune=cortex-a9 -std=gnu99 -fno-strict-aliasing -fwrapv -Wno-zero-length-array
-DMONO_DLL_EXPORT -Wno-unused-but-set-variable -g -Wall -Wunused
-Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes
-Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-cast-qual
-Wwrite-strings -Wno-switch -Wno-switch-enum -Wno-unused-value -Wno-attributes
-DGC_LINUX_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP -DUSE_MUNMAP -g -Wall
-Wunused -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes
-Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-cast-qual
-Wwrite-strings -Wno-switch -Wno-switch-enum -Wno-unused-value -Wno-attributes
conftest.c >&5
conftest.c:81:1: warning: function declaration isn't a prototype
[-Wstrict-prototypes]
main ()
^
conftest.c: In function 'main':
conftest.c:84:5: error: 'timezone' undeclared (first use in this function)
     timezone = 1;
     ^
conftest.c:84:5: note: each undeclared identifier is reported only once for each
function it appears in
 
I am not sure about this one.
 
Chris
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