| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef __SPARC_SIGCONTEXT_H |
| 3 | #define __SPARC_SIGCONTEXT_H |
| 4 | |
| 5 | #include <asm/ptrace.h> |
| 6 | #include <uapi/asm/sigcontext.h> |
| 7 | |
| 8 | #ifndef __ASSEMBLY__ |
| 9 | |
| 10 | #define __SUNOS_MAXWIN 31 |
| 11 | |
| 12 | /* This is what SunOS does, so shall I unless we use new 32bit signals or rt signals. */ |
| 13 | struct sigcontext32 { |
| 14 | int sigc_onstack; /* state to restore */ |
| 15 | int sigc_mask; /* sigmask to restore */ |
| 16 | int sigc_sp; /* stack pointer */ |
| 17 | int sigc_pc; /* program counter */ |
| 18 | int sigc_npc; /* next program counter */ |
| 19 | int sigc_psr; /* for condition codes etc */ |
| 20 | int sigc_g1; /* User uses these two registers */ |
| 21 | int sigc_o0; /* within the trampoline code. */ |
| 22 | |
| 23 | /* Now comes information regarding the users window set |
| 24 | * at the time of the signal. |
| 25 | */ |
| 26 | int sigc_oswins; /* outstanding windows */ |
| 27 | |
| 28 | /* stack ptrs for each regwin buf */ |
| 29 | unsigned int sigc_spbuf[__SUNOS_MAXWIN]; |
| 30 | |
| 31 | /* Windows to restore after signal */ |
| 32 | struct reg_window32 sigc_wbuf[__SUNOS_MAXWIN]; |
| 33 | }; |
| 34 | |
| 35 | |
| 36 | /* This is what we use for 32bit new non-rt signals. */ |
| 37 | |
| 38 | typedef struct { |
| 39 | struct { |
| 40 | unsigned int psr; |
| 41 | unsigned int pc; |
| 42 | unsigned int npc; |
| 43 | unsigned int y; |
| 44 | unsigned int u_regs[16]; /* globals and ins */ |
| 45 | } si_regs; |
| 46 | int si_mask; |
| 47 | } __siginfo32_t; |
| 48 | |
| 49 | #define __SIGC_MAXWIN 7 |
| 50 | |
| 51 | typedef struct { |
| 52 | unsigned long locals[8]; |
| 53 | unsigned long ins[8]; |
| 54 | } __siginfo_reg_window; |
| 55 | |
| 56 | typedef struct { |
| 57 | int wsaved; |
| 58 | __siginfo_reg_window reg_window[__SIGC_MAXWIN]; |
| 59 | unsigned long rwbuf_stkptrs[__SIGC_MAXWIN]; |
| 60 | } __siginfo_rwin_t; |
| 61 | |
| 62 | #ifdef CONFIG_SPARC64 |
| 63 | typedef struct { |
| 64 | unsigned int si_float_regs [64]; |
| 65 | unsigned long si_fsr; |
| 66 | unsigned long si_gsr; |
| 67 | unsigned long si_fprs; |
| 68 | } __siginfo_fpu_t; |
| 69 | |
| 70 | /* This is what SunOS doesn't, so we have to write this alone |
| 71 | and do it properly. */ |
| 72 | struct sigcontext { |
| 73 | /* The size of this array has to match SI_MAX_SIZE from siginfo.h */ |
| 74 | char sigc_info[128]; |
| 75 | struct { |
| 76 | unsigned long u_regs[16]; /* globals and ins */ |
| 77 | unsigned long tstate; |
| 78 | unsigned long tpc; |
| 79 | unsigned long tnpc; |
| 80 | unsigned int y; |
| 81 | unsigned int fprs; |
| 82 | } sigc_regs; |
| 83 | __siginfo_fpu_t * sigc_fpu_save; |
| 84 | struct { |
| 85 | void * ss_sp; |
| 86 | int ss_flags; |
| 87 | unsigned long ss_size; |
| 88 | } sigc_stack; |
| 89 | unsigned long sigc_mask; |
| 90 | __siginfo_rwin_t * sigc_rwin_save; |
| 91 | }; |
| 92 | |
| 93 | #else |
| 94 | |
| 95 | typedef struct { |
| 96 | unsigned long si_float_regs [32]; |
| 97 | unsigned long si_fsr; |
| 98 | unsigned long si_fpqdepth; |
| 99 | struct { |
| 100 | unsigned long *insn_addr; |
| 101 | unsigned long insn; |
| 102 | } si_fpqueue [16]; |
| 103 | } __siginfo_fpu_t; |
| 104 | #endif /* (CONFIG_SPARC64) */ |
| 105 | |
| 106 | |
| 107 | #endif /* !(__ASSEMBLY__) */ |
| 108 | |
| 109 | #endif /* !(__SPARC_SIGCONTEXT_H) */ |