ref: c8b187f9db503465460d8bafa2d7a758bbcf59ca
dir: /tests/sizes.c/
#include "lib9.h" extern char etext[]; extern char end[]; #define BY2PG (0x1000ull) /* bytes per page */ #define ROUND(s, sz) (((s)+((sz)-1))&~((sz)-1)) #define PGROUND(s) ROUND(s, 0x200000) #define KDZERO (PGROUND((uintptr)etext)) #define CONFADDR (KDZERO+ 0x1200ull) #define CPU0 (KDZERO+ 0x1300ull) #define PTSZ (4*KiB) /* page table page size */ #define PTSHIFT 9 /* */ #define PGSHIFT 12 /* log(BY2PG) */ #define PGLSZ(l) (1ull<<(((l)*PTSHIFT)+PGSHIFT)) #define KiB 1024u /* Kibi 0x0000000000000400 */ #define MiB 1048576u /* Mebi 0x0000000000100000 */ #define GiB 1073741824u /* Gibi 0x0000000040000000 */ #define TiB 1099511627776ull /* Tebi 0x0000010000000000 */ #define PiB 1125899906842624ull /* Pebi 0x0004000000000000 */ #define EiB 1152921504606846976ull /* Exbi 0x1000000000000000 */ #define PTLX(v, l) (((v)>>(((l)*PTSHIFT)+PGSHIFT)) & ((1<<PTSHIFT)-1)) double canontod(u32 v[2]) { union { double d; u32 ul[2]; } a; print("|"); a.d = 1.; print("."); if(a.ul[0]) { a.ul[0] = v[0]; a.ul[1] = v[1]; } else { a.ul[1] = v[0]; a.ul[0] = v[1]; } print(","); return a.d; } void main(int argc, char *argv[]) { double d; u32 v[2] = {0,0}; d = canontod(v); print("sizes --\n"); print("sizeof(int) %d\n", sizeof(int)); print("sizeof(double) %d\n", sizeof(double)); print("sizeof(float) %d\n", sizeof(float)); print("sizeof(long) %d\n", sizeof(long)); print("sizeof(intptr) %d\n", sizeof(intptr)); print("etext %p KZERO %zx CONFADDR %zx calc %zx\n", etext, (intptr)KDZERO, (intptr)CONFADDR, (intptr)(CPU0-CONFADDR)); print("end %p PGROUND(end) %zx\n", end, PGROUND((uintptr)end)); print("PGLSZ(0) 0x%zux PGLSZ(1) 0x%zx $(PGLSZ(1)-1) 0x%zux $~(PGLSZ(1)-1) 0x%zux 0x%zux\n", PGLSZ(0), PGLSZ(1), (PGLSZ(1)-1), ~(PGLSZ(1)-1), ((0x31bd8c + (PGLSZ(1)-1)) & ~(PGLSZ(1)-1))-0x200000); print("PTLX(0x1000, 3) 0x%zux\n", (uintptr)PTLX(0x1000, 3)); print("PTLX(0x1000, 2) 0x%zux\n", (uintptr)PTLX(0x1000, 2)); print("PTLX(0x1000, 1) 0x%zux\n", (uintptr)PTLX(0x1000, 1)); print("PTLX(0x1000, 0) 0x%zux\n", (uintptr)PTLX(0x1000, 0)); print("PTLX(0x200000, 3) 0x%zux\n", (uintptr)PTLX(0x200000, 3)); print("PTLX(0x200000, 2) 0x%zux\n", (uintptr)PTLX(0x200000, 2)); print("PTLX(0x200000, 1) 0x%zux\n", (uintptr)PTLX(0x200000, 1)); print("PTLX(0x200000, 0) 0x%zux\n", (uintptr)PTLX(0x200000, 0)); print("PTLX(512*GiB, 3) 0x%zux\n", (uintptr)PTLX((uintptr)512*GiB, 3)); print("PTLX(512*GiB, 2) 0x%zux\n", (uintptr)PTLX((uintptr)512*GiB, 2)); print("PTLX(512*GiB, 1) 0x%zux\n", (uintptr)PTLX((uintptr)512*GiB, 1)); print("PTLX(512*GiB, 0) 0x%zux\n", (uintptr)PTLX((uintptr)512*GiB, 0)); print("PTLX(1*GiB, 3) 0x%zux\n", (uintptr)PTLX(1*GiB, 3)); print("PTLX(1*GiB, 2) 0x%zux\n", (uintptr)PTLX(1*GiB, 2)); print("PTLX(1*GiB, 1) 0x%zux\n", (uintptr)PTLX(1*GiB, 1)); print("PTLX(1*GiB, 0) 0x%zux\n", (uintptr)PTLX(1*GiB, 0)); exits(nil); }