Messages in this thread | | | Date | Sun, 22 Nov 2015 21:36:45 -0500 (EST) | From | Nicolas Pitre <> | Subject | Re: [RFC/PATCH 0/3] ARM: Use udiv/sdiv for __aeabi_{u}idiv library functions |
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On Sun, 22 Nov 2015, Arnd Bergmann wrote:
> I've also found some /proc/cpuinfo output to cross-reference SoCs > to their core names. > > variant part revision name features > dove: 0 0x581 5 PJ4 idivt
I just managed to boot my dusty Dove DB and ran a quick test programon it. Its cpuinfo corresponds to the above.
$ cat m.c #include <stdio.h> int mydiv(int, int); int main() { printf("div test\n"); printf("%d\n", mydiv(12345678, 37)); return 0; } $ cat d.c int mydiv(int x, int y) { return x/y; } $ gcc -o test m.c d.c $ ./test div test 333666 $ gcc -o test m.c d.c -march=armv7ve -mthumb $ ./test div test 333666 $ gcc -o test m.c d.c -march=armv7ve -marm $ ./test div test Illegal instruction (core dumped) $
Nicolas
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