I hope someone here can help. I'm trying to port an older project
from ~5 year old version of uClinux to a current version. I've
managed to get everthing done, until I went to actually port the
business logic app. I'm getting the following types of errors when it
goes to link:
'relocation truncated to fit: R_68K_GOT16O'
Some searching and I roughly understand the problem, and the alleged
solution is to build some of the problem files with the -mxgot flag.
Fine. Then the following error:
'/usr/local/CodeSourcery/Sourcery_CodeBench_Lite_for_ColdFire_uClinux/m68k-uclinux/bin/elf2flt:
error: reloc type R_68K_GOT32O is not supported'
@#$%^#@!
Compile command line:
ucfront-gcc m68k-uclinux-gcc -mcpu=5235 -DCONFIG_COLDFIRE -O1 -g -pipe
-fno-common -fno-builtin -Wall -DEMBED -msep-data -Dlinux
-D__linux__ -Dunix -D__uClinux__ -Wall -Werror -Wno-unused
-Wpointer-arith -MD
-I/home/derosier/inthinc/projects/mcm820kernel/lib/libhessian/include
-I/home/derosier/inthinc/projects/mcm820kernel/user/iwi/src
-DCONFIG_5235 -DDIRECT_CALL -I./include -I/usr/include/libxml2
-I/home/derosier/inthinc/projects/mcm820kernel/staging/include
-I/home/derosier/inthinc/projects/mcm820kernel/user/iwi/src/common
-I/home/derosier/inthinc/projects/mcm820kernel/user/iwi/modules/sbs_module/include
-I/home/derosier/inthinc/projects/mcm820kernel/lib/libhessian/include
-c -o src/controller/queue.o src/controller/queue.c
When I keep the intermediates, here's the header at the top of the .s file:
| GNU C (Sourcery CodeBench Lite 2011.09-23) version 4.6.1 (m68k-uclinux)
| compiled by GNU C version 4.3.2, GMP version 4.3.2, MPFR version
3.0.1-p4, MPC version 0.9
| GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
| options passed: -fpreprocessed controller.i -mcpu=5235 -msep-data
| -auxbase-strip src/controller/controller.o -g -O1 -Wall -Werror
| -Wno-unused -Wpointer-arith -fno-common -fno-builtin -fverbose-asm
| options enabled: -fPIC -fauto-inc-dec -fbranch-count-reg
| -fcombine-stack-adjustments -fcompare-elim -fcprop-registers -fdefer-pop
| -fdelete-null-pointer-checks -fdwarf2-cfi-asm -fearly-inlining
| -feliminate-unused-debug-types -fforward-propagate -ffunction-cse
| -fgcse-lm -fguess-branch-probability -fident -fif-conversion
| -fif-conversion2 -finline -finline-functions-called-once -fipa-profile
| -fipa-pure-const -fipa-reference -fira-share-save-slots
| -fira-share-spill-slots -fivopts -fkeep-static-consts
| -fleading-underscore -fmath-errno -fmerge-constants -fmerge-debug-strings
| -fmove-loop-invariants -fpeephole -fprefetch-loop-arrays
| -freg-struct-return -fsched-critical-path-heuristic
| -fsched-dep-count-heuristic -fsched-group-heuristic -fsched-interblock
| -fsched-last-insn-heuristic -fsched-rank-heuristic -fsched-spec
| -fsched-spec-insn-heuristic -fsched-stalled-insns-dep -fshow-column
| -fsigned-zeros -fsplit-ivs-in-unroller -fsplit-wide-types
| -fstrict-volatile-bitfields -ftoplevel-reorder -ftrapping-math
| -ftree-bit-ccp -ftree-ccp -ftree-ch -ftree-copy-prop -ftree-copyrename
| -ftree-dce -ftree-dominator-opts -ftree-dse -ftree-forwprop -ftree-fre
| -ftree-loop-if-convert -ftree-loop-im -ftree-loop-ivcanon
| -ftree-loop-optimize -ftree-parallelize-loops= -ftree-phiprop -ftree-pta
| -ftree-reassoc -ftree-scev-cprop -ftree-sink -ftree-slp-vectorize
| -ftree-sra -ftree-ter -ftree-vect-loop-version -funit-at-a-time
| -fvar-tracking -fvar-tracking-assignments -fverbose-asm
| -fzero-initialized-in-bss -mdiv -msep-data
Link:
ucfront-gcc m68k-uclinux-gcc -mcpu=5235 -DCONFIG_COLDFIRE -Wl,-elf2flt
-Wl,-move-rodata -msep-data -Wl,-elf2flt -Wl,-move-rodata -msep-data
-L/home/derosier/inthinc/projects/mcm820kernel/user/iwi/libhessian -o
controller {...lots of .o...} libhessian/libhessian.a -lz -lm -lm
I suspect one of the fundamental problems is the code has some HUGE
functions (2500+ lines) with huge switch blocks, but I'm here mainly
to port not to muck with (ne refactor) the logic.
All help will be appreciated.
Thanks,
- Steve
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