1 /* 2 * i386 dependent signal definitions 3 * 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, see <http://www.gnu.org/licenses/>. 17 */ 18 #ifndef TARGET_ARCH_SIGNAL_H 19 #define TARGET_ARCH_SIGNAL_H 20 21 #include "cpu.h" 22 23 /* Size of the signal trampolin code placed on the stack. */ 24 #define TARGET_SZSIGCODE 0 25 26 /* compare to x86/include/_limits.h */ 27 #define TARGET_MINSIGSTKSZ (512 * 4) /* min sig stack size */ 28 #define TARGET_SIGSTKSZ (MINSIGSTKSZ + 32768) /* recommended size */ 29 30 typedef struct target_mcontext { 31 abi_ulong mc_onstack; /* XXX - sigcontext compat. */ 32 abi_ulong mc_gs; /* machine state (struct trapframe) */ 33 abi_ulong mc_fs; 34 abi_ulong mc_es; 35 abi_ulong mc_ds; 36 abi_ulong mc_edi; 37 abi_ulong mc_esi; 38 abi_ulong mc_ebp; 39 abi_ulong mc_isp; 40 abi_ulong mc_ebx; 41 abi_ulong mc_edx; 42 abi_ulong mc_ecx; 43 abi_ulong mc_eax; 44 abi_ulong mc_trapno; 45 abi_ulong mc_err; 46 abi_ulong mc_eip; 47 abi_ulong mc_cs; 48 abi_ulong mc_eflags; 49 abi_ulong mc_esp; 50 abi_ulong mc_ss; 51 52 int32_t mc_len; /* sizeof(mcontext_t) */ 53 #define _MC_FPFMT_NODEV 0x10000 /* device not present or configured */ 54 #define _MC_FPFMT_387 0x10001 55 #define _MC_FPFMT_XMM 0x10002 56 int32_t mc_fpformat; 57 #define _MC_FPOWNED_NONE 0x20000 /* FP state not used */ 58 #define _MC_FPOWNED_FPU 0x20001 /* FP state came from FPU */ 59 #define _MC_FPOWNED_PCB 0x20002 /* FP state came from PCB */ 60 int32_t mc_ownedfp; 61 abi_ulong mc_flags; 62 /* 63 * See <machine/npx.h> for the internals of mc_fpstate[]. 64 */ 65 int32_t mc_fpstate[128] __aligned(16); 66 67 abi_ulong mc_fsbase; 68 abi_ulong mc_gsbase; 69 70 abi_ulong mc_xfpustate; 71 abi_ulong mc_xfpustate_len; 72 73 int32_t mc_spare2[4]; 74 } target_mcontext_t; 75 76 #define TARGET_MCONTEXT_SIZE 640 77 #define TARGET_UCONTEXT_SIZE 704 78 79 #include "target_os_ucontext.h" 80 81 struct target_sigframe { 82 abi_ulong sf_signum; 83 abi_ulong sf_siginfo; /* code or pointer to sf_si */ 84 abi_ulong sf_ucontext; /* points to sf_uc */ 85 abi_ulong sf_addr; /* undocumented 4th arg */ 86 target_ucontext_t sf_uc; /* = *sf_uncontext */ 87 target_siginfo_t sf_si; /* = *sf_siginfo (SA_SIGINFO case)*/ 88 uint32_t __spare__[2]; 89 }; 90 91 #endif /* TARGET_ARCH_SIGNAL_H */ 92