On 08/26/2018 02:18 PM, Stafford Horne wrote: > + .section .init > + .align 4 > + .global _init > + .type _init,@function > +_init: > + l.sw -4(r1), r9 > + l.addi r1,r1,-4 > + > + .section .fini > + .align 4 > + .global _fini > + .type _fini,@function > +_fini: > + l.sw -4(r1), r9 > + l.addi r1,r1,-4
I think we should take a page from the RISC-V port and completely drop support for DT_INIT and rely exclusively on DT_INITARRAY. Which means that we should drop the ctri.S and crtn.S files. > +__mulsi3: > + l.movhi r11, 0 /* initial r */ > + > + /* Given R = X * Y ... */ > +1: l.sfeqi r4, 0 /* while (y != 0) */ > + l.bf 2f > + l.andi r5, r4, 1 /* if (y & 1) ... */ > + l.add r12, r11, r3 > + l.sfnei r5, 0 > + l.cmov r11, r12, r11 /* ... r += x. */ Officially l.cmov is optional. Given that __mulsi3 is only used for a stripped down configuration that doesn't have a multiplier, we should probably write this for the lowest common denominator. > + /* Shift Y back to the right again, subtracting from X. */ > +2: l.add r7, r11, r6 /* tmp1 = quot + mask */ > +3: l.srli r6, r6, 1 /* mask >>= 1 */ > + l.sub r8, r12, r4 /* tmp2 = x - y */ > + l.sfleu r4, r12 /* y <= x */ > + l.srli r4, r4, 1 /* y >>= 1 */ > + l.cmov r11, r7, r11 /* if (y <= x) quot = tmp1 */ > + l.cmov r12, r8, r12 /* if (y <= x) x = tmp2 */ Likewise for __udivsi3_internal. r~
