[fpc-pascal] is there a ready to use FPC Cross compiler x86-Linux -> MIPS-linux?

[Michael Ring]

Seems that the assembler is not understanding the $xx notation for the registers.

Instead of trying to change the toolchain I would fire up gdb on your device and single step through the initialisation code of the helloworld.pas file. 

From my point of view it is more likely that you will find the problem in the startup-code and not the toolchain. There were good hints in this o the other thread that fpc startup code is checking the proc filesystem. There might be a few more incompatibility issues with the wrt-linux implementation, those will most likely only reveal themselves in gdb

Michael

Von meinem iPad gesendet

Am 15.06.2013 um 19:19 schrieb Dennis Poon <dennis at avidsoft.com.hk>:

> 
> I eventually found this page which talked about downloading a special toolchain from openwrt web site
> 
> http://www.dd-wrt.com/phpBB2/viewtopic.php?t=61112
> 
> I followed its instruction and successfully compiled a helloworld c program and 
> successfully RUN the helloworld binary on Netgear 3700 running DD-Wrt !
> 
> I was overjoyed.
> 
> Then I tried to modify the steps to compile fpc 
> 
> my toolchains  is at /home/dennis/toolchains/staging_dir_mips/bin/
> and in this folder, there are files: mips-linux-ar  and mips-linux-as
> so I 
> make clean all CPU_TARGET=mips OS_TARGET=linux BINUTILSPREFIX=/home/dennis/toolchains/staging_dir_mips/bin/mips-linux-
> 
> but I got errors:
> 
> /home/dennis/toolchains/staging_dir_mips/bin/mips-linux-as -32 -mips32 -EB -o /home/dennis/fpc/2.7.1/rtl/units/mips-linux/prt0.o mips/prt0.as
> mips/prt0.as: Assembler messages:
> mips/prt0.as:23: Error: illegal operands `lui $a2,%hi(__dl_fini)'
> mips/prt0.as:25: Error: illegal operands `sw $v0,%lo(__dl_fini)($a2)'
> mips/prt0.as:54: Error: illegal operands `move $s8,$sp'
> mips/prt0.as:56: Error: illegal operands `sw $s8,%lo(__stkptr)($at)'
> mips/prt0.as:65: Error: illegal operands `lw $a0,0($s8)'
> mips/prt0.as:66: Error: illegal operands `lui $a1,%hi(operatingsystem_parameter_argc)'
> mips/prt0.as:67: Error: illegal operands `sw $a0,%lo(operatingsystem_parameter_argc)($a1)'
> mips/prt0.as:70: Error: illegal operands `addiu $a1,$s8,4'
> mips/prt0.as:71: Error: illegal operands `lui $a2,%hi(operatingsystem_parameter_argv)'
> mips/prt0.as:72: Error: illegal operands `sw $a1,%lo(operatingsystem_parameter_argv)($a2)'
> mips/prt0.as:75: Error: illegal operands `addiu $a2,$a0,1'
> mips/prt0.as:76: Error: illegal operands `sll $a2,$a2,0x2'
> mips/prt0.as:77: Error: illegal operands `addu $a2,$a2,$a1'
> mips/prt0.as:78: Error: illegal operands `lui $a3,%hi(operatingsystem_parameter_envp)'
> mips/prt0.as:79: Error: illegal operands `sw $a2,%lo(operatingsystem_parameter_envp)($a3)'
> mips/prt0.as:80: Error: illegal operands `lui $t9,%hi(PASCALMAIN)'
> mips/prt0.as:81: Error: illegal operands `addiu $t9,$t9,%lo(PASCALMAIN)'
> mips/prt0.as:82: Error: illegal operands `jalr $t9'
> mips/prt0.as:95: Error: illegal operands `sw $a0,16($sp)'
> mips/prt0.as:97: Error: illegal operands `lw $t9,%lo(__dl_fini)($at)'
> mips/prt0.as:98: Error: illegal operands `beqz $t9,.L1'
> mips/prt0.as:100: Error: illegal operands `jalr $t9'
> mips/prt0.as:103: Error: illegal operands `lw $a0,16($sp)'
> mips/prt0.as:104: Error: illegal operands `li $v0,4001'
> make[5]: *** [prt0.o] Error 1
> make[5]: Leaving directory `/home/dennis/fpc/2.7.1/rtl/linux'
> make[4]: *** [linux_all] Error 2
> make[4]: Leaving directory `/home/dennis/fpc/2.7.1/rtl'
> make[3]: *** [rtl] Error 2
> make[3]: Leaving directory `/home/dennis/fpc/2.7.1/compiler'
> make[2]: *** [cycle] Error 2
> make[2]: Leaving directory `/home/dennis/fpc/2.7.1/compiler'
> make[1]: *** [compiler_cycle] Error 2
> make[1]: Leaving directory `/home/dennis/fpc/2.7.1'
> make: *** [build-stamp.mips-linux] Error 2
> 
> 
> I feel I am almost there. Any help on the above?
> 
> Dennis
> _______________________________________________
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