| /* |
| * setjmp and longjmp, but our own because some (stupid) c libraries |
| * assume longjmp is only used to move up the stack, and error out |
| * if you do otherwise. |
| */ |
| |
| typedef struct Label Label; |
| #define LABELDPC 0 |
| |
| #if defined (__i386__) && (defined(__FreeBSD__) || defined(__linux__) || defined(__OpenBSD__)) |
| struct Label |
| { |
| ulong pc; |
| ulong bx; |
| ulong sp; |
| ulong bp; |
| ulong si; |
| ulong di; |
| }; |
| #elif defined(__APPLE__) |
| struct Label |
| { |
| ulong pc; /* lr */ |
| ulong cr; /* mfcr */ |
| ulong ctr; /* mfcr */ |
| ulong xer; /* mfcr */ |
| ulong sp; /* callee saved: r1 */ |
| ulong toc; /* callee saved: r2 */ |
| ulong gpr[19]; /* callee saved: r13-r31 */ |
| // XXX: currently do not save vector registers or floating-point state |
| // ulong pad; |
| // uvlong fpr[18]; /* callee saved: f14-f31 */ |
| // ulong vr[4*12]; /* callee saved: v20-v31, 256-bits each */ |
| }; |
| #elif defined(__sun__) |
| struct Label |
| { |
| ulong input[8]; /* %i registers */ |
| ulong local[8]; /* %l registers */ |
| ulong sp; /* %o6 */ |
| ulong link; /* %o7 */ |
| }; |
| #else |
| #error "Unknown or unsupported architecture" |
| #endif |
| |
| |
