| /* Linux-specific definitions: */ |
| |
| /* Define various structure offsets to simplify cross-compilation. */ |
| |
| /* FIXME: Currently these are only used in getcontext.S, which is only used |
| for a local unwinder, so we can use the compile-time ABI. At a later date |
| we will want all three here, to use for signal handlers. Also, because |
| of the three ABIs, gen-offsets.c can not quite generate this file. */ |
| |
| /* Offsets for MIPS Linux "ucontext_t": */ |
| |
| /* First 24 bytes in sigframe are argument save space and padding for |
| what used to be signal trampolines. Ref: arch/mips/kernel/signal.c */ |
| #define LINUX_SF_TRAMP_SIZE 0x18 |
| |
| #if _MIPS_SIM == _ABIO32 |
| |
| # define LINUX_UC_FLAGS_OFF 0x0 |
| # define LINUX_UC_LINK_OFF 0x4 |
| # define LINUX_UC_STACK_OFF 0x8 |
| # define LINUX_UC_MCONTEXT_OFF 0x18 |
| # define LINUX_UC_SIGMASK_OFF 0x268 |
| # define LINUX_UC_MCONTEXT_PC 0x20 |
| # define LINUX_UC_MCONTEXT_GREGS 0x28 |
| |
| #elif _MIPS_SIM == _ABIN32 |
| |
| # define LINUX_UC_FLAGS_OFF 0x0 |
| # define LINUX_UC_LINK_OFF 0x4 |
| # define LINUX_UC_STACK_OFF 0x8 |
| # define LINUX_UC_MCONTEXT_OFF 0x18 |
| # define LINUX_UC_SIGMASK_OFF 0x270 |
| # define LINUX_UC_MCONTEXT_PC 0x258 |
| # define LINUX_UC_MCONTEXT_GREGS 0x18 |
| |
| #elif _MIPS_SIM == _ABI64 |
| |
| # define LINUX_UC_FLAGS_OFF 0x0 |
| # define LINUX_UC_LINK_OFF 0x8 |
| # define LINUX_UC_STACK_OFF 0x10 |
| # define LINUX_UC_MCONTEXT_OFF 0x28 |
| # define LINUX_UC_SIGMASK_OFF 0x280 |
| # define LINUX_UC_MCONTEXT_PC 0x268 |
| # define LINUX_UC_MCONTEXT_GREGS 0x28 |
| #else |
| |
| #error Unsupported ABI |
| |
| #endif |
| |
| #define LINUX_SC_R0_OFF (LINUX_UC_MCONTEXT_GREGS - LINUX_UC_MCONTEXT_OFF) |
| #define LINUX_SC_R1_OFF (LINUX_SC_R0_OFF + 1*8) |
| #define LINUX_SC_R2_OFF (LINUX_SC_R0_OFF + 2*8) |
| #define LINUX_SC_R3_OFF (LINUX_SC_R0_OFF + 3*8) |
| #define LINUX_SC_R4_OFF (LINUX_SC_R0_OFF + 4*8) |
| #define LINUX_SC_R5_OFF (LINUX_SC_R0_OFF + 5*8) |
| #define LINUX_SC_R6_OFF (LINUX_SC_R0_OFF + 6*8) |
| #define LINUX_SC_R7_OFF (LINUX_SC_R0_OFF + 7*8) |
| #define LINUX_SC_R8_OFF (LINUX_SC_R0_OFF + 8*8) |
| #define LINUX_SC_R9_OFF (LINUX_SC_R0_OFF + 9*8) |
| #define LINUX_SC_R10_OFF (LINUX_SC_R0_OFF + 10*8) |
| #define LINUX_SC_R11_OFF (LINUX_SC_R0_OFF + 11*8) |
| #define LINUX_SC_R12_OFF (LINUX_SC_R0_OFF + 12*8) |
| #define LINUX_SC_R13_OFF (LINUX_SC_R0_OFF + 13*8) |
| #define LINUX_SC_R14_OFF (LINUX_SC_R0_OFF + 14*8) |
| #define LINUX_SC_R15_OFF (LINUX_SC_R0_OFF + 15*8) |
| #define LINUX_SC_R16_OFF (LINUX_SC_R0_OFF + 16*8) |
| #define LINUX_SC_R17_OFF (LINUX_SC_R0_OFF + 17*8) |
| #define LINUX_SC_R18_OFF (LINUX_SC_R0_OFF + 18*8) |
| #define LINUX_SC_R19_OFF (LINUX_SC_R0_OFF + 19*8) |
| #define LINUX_SC_R20_OFF (LINUX_SC_R0_OFF + 20*8) |
| #define LINUX_SC_R21_OFF (LINUX_SC_R0_OFF + 21*8) |
| #define LINUX_SC_R22_OFF (LINUX_SC_R0_OFF + 22*8) |
| #define LINUX_SC_R23_OFF (LINUX_SC_R0_OFF + 23*8) |
| #define LINUX_SC_R24_OFF (LINUX_SC_R0_OFF + 24*8) |
| #define LINUX_SC_R25_OFF (LINUX_SC_R0_OFF + 25*8) |
| #define LINUX_SC_R26_OFF (LINUX_SC_R0_OFF + 26*8) |
| #define LINUX_SC_R27_OFF (LINUX_SC_R0_OFF + 27*8) |
| #define LINUX_SC_R28_OFF (LINUX_SC_R0_OFF + 28*8) |
| #define LINUX_SC_R29_OFF (LINUX_SC_R0_OFF + 29*8) |
| #define LINUX_SC_R30_OFF (LINUX_SC_R0_OFF + 30*8) |
| #define LINUX_SC_R31_OFF (LINUX_SC_R0_OFF + 31*8) |
| |
| #define LINUX_SC_SP_OFF LINUX_SC_R29_OFF |
| #define LINUX_SC_PC_OFF (LINUX_UC_MCONTEXT_PC - LINUX_UC_MCONTEXT_OFF) |
