When trying to build U-Boot under Buildroot and OpenEmbedded,
I run into a problem:
When linking u-boot the linker seems to use the div0 from
the C compiler libgcc instead of the u-boot div0.
gcc div0 for ARM contains a call to "raise" which is not defined
in libgcc.a (someone said it was part of glibc),
so the linking process fails due to no "raise" symbol
gcc/config/arm/lib1funcs.asm contains:
FUNC_START div0
tmfd sp!, {r1, lr}
mov r0, #SIGFPE
bl SYM(raise) __PLT__
...
The problem can be fixed by patching the C compiler:
+ bl SYM(raise) __PLT__
+ bl SYM(_div0) __PLT__
------
What I'd like to know: Is there a way to fix this in u-boot?
Tried creating a "raise" function in libarm/board.c
void raise(void)
{
hang();
}
which did not work.
I later saw that raise needs a parameter,
but it complained that raise is not found,
and not that the parameters is wrong.
Is board.c not included in the link?
Anyone else got this problem?
BR
Ulf Samuelsson
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