| 1 | /* |
| 2 | * Offsets into target signal frames for sh4 vdso. |
| 3 | * |
| 4 | * From linux-user/sh4/signal.c: |
| 5 | * |
| 6 | * struct target_sigcontext { |
| 7 | * target_ulong oldmask; // 0 |
| 8 | * target_ulong sc_gregs[16]; // 4 |
| 9 | * target_ulong sc_pc; // 68 |
| 10 | * target_ulong sc_pr; // 72 |
| 11 | * target_ulong sc_sr; // 76 |
| 12 | * target_ulong sc_gbr; // 80 |
| 13 | * target_ulong sc_mach; // 84 |
| 14 | * target_ulong sc_macl; // 88 |
| 15 | * target_ulong sc_fpregs[16]; // 92 |
| 16 | * target_ulong sc_xfpregs[16]; // 156 |
| 17 | * unsigned int sc_fpscr; // 220 |
| 18 | * unsigned int sc_fpul; // 224 |
| 19 | * unsigned int sc_ownedfp; // 228 |
| 20 | * }; // sizeof = 232 |
| 21 | * |
| 22 | * struct sigframe { sigcontext sc; ... } |
| 23 | * struct rt_sigframe { siginfo info[128]; ucontext uc; } |
| 24 | * ucontext = { flags[4], link[4], stack[12], sigcontext mcontext; ... } |
| 25 | * => mcontext at rt_sigframe + 128 + 20 = rt_sigframe + 148 |
| 26 | */ |
| 27 | |
| 28 | /* Offset of sigcontext within sigframe (CFA base for sigreturn). */ |
| 29 | #define SIGFRAME_SC_OFFSET 0 |
| 30 | |
| 31 | /* Offset of tuc_mcontext within rt_sigframe (CFA base for rt_sigreturn). */ |
| 32 | #define RT_SIGFRAME_SC_OFFSET 148 |
| 33 | |
| 34 | /* Offsets within struct sigcontext. */ |
| 35 | #define SC_GREGS 4 |
| 36 | #define SC_PC 68 |
| 37 | #define SC_PR 72 |
| 38 | #define SC_SR 76 |
| 39 | #define SC_GBR 80 |
| 40 | #define SC_MACH 84 |
| 41 | #define SC_MACL 88 |
| 42 | #define SC_FPREGS 92 |
| 43 | #define SC_XFPREGS 156 |
| 44 | #define SC_FPSCR 220 |
| 45 | #define SC_FPUL 224 |