[fedora-arm] Busybox on ARM, possible GCC issues

[Gordan Bobic]

 Hi,

 I've been trying to get busybox to build on Fedora ARM and I've vixed a 
 few issues with the RPM, but one still remains:

   /builddir/build/BUILD/busybox-1.15.1/scripts/trylink 
 "busybox_unstripped" "gcc" " -Wall -Wshadow -Wwrite-strings -Wundef 
 -Wstrict-prototypes -Wunused -Wunused-parameter -Wunused-function 
 -Wunused-value -Wmissing-prototypes -Wmissing-declarations 
 -Wdeclaration-after-statement -Wold-style-definition -fno-builtin-strlen 
 -finline-limit=0 -fomit-frame-pointer -ffunction-sections 
 -fdata-sections -fno-guess-branch-probability -funsigned-char 
 -static-libgcc -falign-functions=1 -falign-jumps=1 -falign-labels=1 
 -falign-loops=1 -Os  -fno-asynchronous-unwind-tables 
 -fno-stack-protector -static -nostartfiles 
 -LuClibc-0.9.30.1/installed/lib uClibc-0.9.30.1/installed/lib/crt1.o 
 uClibc-0.9.30.1/installed/lib/crti.o 
 uClibc-0.9.30.1/installed/lib/crtn.o" " " " applets/built-in.o" " 
 archival/lib.a  archival/libunarchive/lib.a  console-tools/lib.a  
 coreutils/lib.a  coreutils/libcoreutils/lib.a  debianutils/lib.a  
 e2fsprogs/lib.a  editors/lib.a  findutils/lib.a  init/lib.a  libbb/lib.a 
 libpwdgrp/lib.a  loginutils/lib.a  mailutils/lib.a  miscutils/lib.a  
 modutils/lib.a  networking/lib.a  networking/libiproute/lib.a  
 networking/udhcp/lib.a  printutils/lib.a  procps/lib.a  runit/lib.a  
 selinux/lib.a  shell/lib.a  sysklogd/lib.a  util-linux/lib.a  
 util-linux/volume_id/lib.a  archival/built-in.o  
 archival/libunarchive/built-in.o  console-tools/built-in.o  
 coreutils/built-in.o  coreutils/libcoreutils/built-in.o  
 debianutils/built-in.o  e2fsprogs/built-in.o  editors/built-in.o  
 findutils/built-in.o  init/built-in.o  libbb/built-in.o  
 libpwdgrp/built-in.o  loginutils/built-in.o  mailutils/built-in.o  
 miscutils/built-in.o  modutils/built-in.o  networking/built-in.o  
 networking/libiproute/built-in.o  networking/udhcp/built-in.o  
 printutils/built-in.o  procps/built-in.o  runit/built-in.o  
 selinux/built-in.o  shell/built-in.o  sysklogd/built-in.o  
 util-linux/built-in.o  util-linux/volume_id/built-in.o" " m crypt"
 Trying libraries: crypt m
 Failed: -Wl,--start-group -lcrypt -lm -Wl,--end-group
 Output of:
 gcc -Wall -Wshadow -Wwrite-strings -Wundef -Wstrict-prototypes -Wunused 
 -Wunused-parameter -Wunused-function -Wunused-value -Wmissing-prototypes 
 -Wmissing-declarations -Wdeclaration-after-statement 
 -Wold-style-definition -fno-builtin-strlen -finline-limit=0 
 -fomit-frame-pointer -ffunction-sections -fdata-sections 
 -fno-guess-branch-probability -funsigned-char -static-libgcc 
 -falign-functions=1 -falign-jumps=1 -falign-labels=1 -falign-loops=1 -Os 
 -static -nostartfiles -LuClibc-0.9.30.1/installed/lib 
 uClibc-0.9.30.1/installed/lib/crt1.o 
 uClibc-0.9.30.1/installed/lib/crti.o 
 uClibc-0.9.30.1/installed/lib/crtn.o -o busybox_unstripped 
 -Wl,--sort-common -Wl,--sort-section,alignment -Wl,--start-group 
 applets/built-in.o archival/lib.a archival/libunarchive/lib.a 
 console-tools/lib.a coreutils/lib.a coreutils/libcoreutils/lib.a 
 debianutils/lib.a e2fsprogs/lib.a editors/lib.a findutils/lib.a 
 init/lib.a libbb/lib.a libpwdgrp/lib.a loginutils/lib.a mailutils/lib.a 
 miscutils/lib.a modutils/lib.a networking/lib.a 
 networking/libiproute/lib.a networking/udhcp/lib.a printutils/lib.a 
 procps/lib.a runit/lib.a selinux/lib.a shell/lib.a sysklogd/lib.a 
 util-linux/lib.a util-linux/volume_id/lib.a archival/built-in.o 
 archival/libunarchive/built-in.o console-tools/built-in.o 
 coreutils/built-in.o coreutils/libcoreutils/built-in.o 
 debianutils/built-in.o e2fsprogs/built-in.o editors/built-in.o 
 findutils/built-in.o init/built-in.o libbb/built-in.o 
 libpwdgrp/built-in.o loginutils/built-in.o mailutils/built-in.o 
 miscutils/built-in.o modutils/built-in.o networking/built-in.o 
 networking/libiproute/built-in.o networking/udhcp/built-in.o 
 printutils/built-in.o procps/built-in.o runit/built-in.o 
 selinux/built-in.o shell/built-in.o sysklogd/built-in.o 
 util-linux/built-in.o util-linux/volume_id/built-in.o -Wl,--end-group 
 -Wl,--start-group -lcrypt -lm -Wl,--end-group
 ==========
 /usr/lib/gcc/armv5tel-redhat-linux-gnueabi/4.4.5/libgcc_eh.a(unwind-arm.o): 
 In function `__gnu_Unwind_Backtrace':
 (.text+0x8b0): undefined reference to `__stack_chk_fail'
 /usr/lib/gcc/armv5tel-redhat-linux-gnueabi/4.4.5/libgcc_eh.a(unwind-arm.o): 
 In function `__gnu_Unwind_Backtrace':
 (.text+0x8b8): undefined reference to `__stack_chk_guard'
 collect2: ld returned 1 exit status

 Poking around with the command that fails, it would appear that it is 
 -lm that causes the problem, and that appears to be in libgcc.

 I tried adding -fno-stack-protector and -fno-asynchronous-unwind-tables 
 to this operation, but the problem doesn't go away. I have a sneaky 
 suspicion that I may (also) need to add this to the uClibc CFLAGS, but 
 that seems to cause build failures early on.

 Any suggestions for a workaround?

 Gordan