1# This script generates the PS3 hypervisor call stubs from an HV 2# interface definition file. The PS3 HV calling convention is very 3# similar to the PAPR one, except that the function token is passed in 4# r11 instead of r3. 5# 6# Invoke like so: awk -f ps3-hv-asm.awk < ps3-hvcall.master > ps3-hvcall.S 7# 8 9BEGIN { 10 printf("#include <machine/asm.h>\n\n"); 11 printf("#define hc .long 0x44000022\n\n"); 12} 13 14/HVCALL.*/ { 15 code = $2; 16 ins = split($4, a, ",") 17 outs = split($5, a, ",") 18 19 printf("ASENTRY(%s)\n",$3); 20 printf("\tmflr %%r0\n"); 21 printf("\tstd %%r0,16(%%r1)\n"); 22 printf("\tstdu %%r1,-%d(%%r1)\n", 48+8*outs); 23 24 if ($4 == "UNUSED") 25 ins = 0 26 27 # Save output reg addresses to the stack 28 for (i = 0; i < outs; i++) { 29 if (ins+i >= 8) { 30 printf("\tld %%r11,%d(%%r1)\n", 48+8*outs + 48 + 8*(i+ins)); 31 printf("\tstd %%r11,%d(%%r1)\n", 48+8*i); 32 } else { 33 printf("\tstd %%r%d,%d(%%r1)\n", 3+ins+i, 48+8*i); 34 } 35 } 36 37 printf("\tli %%r11,%d\n", code); 38 printf("\thc\n"); 39 printf("\textsw %%r3,%%r3\n"); 40 41 for (i = 0; i < outs; i++) { 42 printf("\tld %%r11,%d(%%r1)\n", 48+8*i); 43 printf("\tstd %%r%d,0(%%r11)\n", 4+i); 44 } 45 46 printf("\tld %%r1,0(%%r1)\n"); 47 printf("\tld %%r0,16(%%r1)\n"); 48 printf("\tmtlr %%r0\n"); 49 printf("\tblr\n\n"); 50} 51