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[PATCH v4 06/36] bsd-user/i386/target_arch_signal.h: Update mcontext_t t
From: |
Warner Losh |
Subject: |
[PATCH v4 06/36] bsd-user/i386/target_arch_signal.h: Update mcontext_t to match FreeBSD |
Date: |
Thu, 4 Nov 2021 21:18:47 -0600 |
Fill in target_mcontext_t to match the FreeBSD mcontex_t. Also tag the
current size of mcontext and ucontext to enable size checking for i386.
Signed-off-by: Warner Losh <imp@bsdimp.com>
---
bsd-user/i386/target_arch_signal.h | 46 ++++++++++++++++++++++++++++++
1 file changed, 46 insertions(+)
diff --git a/bsd-user/i386/target_arch_signal.h
b/bsd-user/i386/target_arch_signal.h
index bf7263c4f8..701c6f964f 100644
--- a/bsd-user/i386/target_arch_signal.h
+++ b/bsd-user/i386/target_arch_signal.h
@@ -28,8 +28,54 @@
#define TARGET_SIGSTKSZ (MINSIGSTKSZ + 32768) /* recommended size */
typedef struct target_mcontext {
+ abi_ulong mc_onstack; /* XXX - sigcontext compat. */
+ abi_ulong mc_gs; /* machine state (struct trapframe) */
+ abi_ulong mc_fs;
+ abi_ulong mc_es;
+ abi_ulong mc_ds;
+ abi_ulong mc_edi;
+ abi_ulong mc_esi;
+ abi_ulong mc_ebp;
+ abi_ulong mc_isp;
+ abi_ulong mc_ebx;
+ abi_ulong mc_edx;
+ abi_ulong mc_ecx;
+ abi_ulong mc_eax;
+ abi_ulong mc_trapno;
+ abi_ulong mc_err;
+ abi_ulong mc_eip;
+ abi_ulong mc_cs;
+ abi_ulong mc_eflags;
+ abi_ulong mc_esp;
+ abi_ulong mc_ss;
+
+ int32_t mc_len; /* sizeof(mcontext_t) */
+#define _MC_FPFMT_NODEV 0x10000 /* device not present or configured */
+#define _MC_FPFMT_387 0x10001
+#define _MC_FPFMT_XMM 0x10002
+ int32_t mc_fpformat;
+#define _MC_FPOWNED_NONE 0x20000 /* FP state not used */
+#define _MC_FPOWNED_FPU 0x20001 /* FP state came from FPU */
+#define _MC_FPOWNED_PCB 0x20002 /* FP state came from PCB */
+ int32_t mc_ownedfp;
+ abi_ulong mc_flags;
+ /*
+ * See <machine/npx.h> for the internals of mc_fpstate[].
+ */
+ int32_t mc_fpstate[128] __aligned(16);
+
+ abi_ulong mc_fsbase;
+ abi_ulong mc_gsbase;
+
+ abi_ulong mc_xfpustate;
+ abi_ulong mc_xfpustate_len;
+
+ int32_t mc_spare2[4];
} target_mcontext_t;
+#define TARGET_MCONTEXT_SIZE 640
+#define TARGET_UCONTEXT_SIZE 704
+
#include "target_os_ucontext.h"
struct target_sigframe {
--
2.33.0
- Re: [PATCH v4 07/36] bsd-user/i386: Move the inlines into signal.c, (continued)
[PATCH v4 08/36] bsd-user/x86_64/target_arch_signal.h: Remove target_sigcontext, Warner Losh, 2021/11/04
[PATCH v4 12/36] bsd-user/arm/target_arch_sysarch.h: Use consistent include guards, Warner Losh, 2021/11/04
[PATCH v4 10/36] bsd-user/x86_64/target_arch_signal.h: Fill in mcontext_t, Warner Losh, 2021/11/04
[PATCH v4 17/36] bsd-user/arm/target_arch_cpu.h: Dummy target_cpu_loop implementation, Warner Losh, 2021/11/04
[PATCH v4 05/36] bsd-user/i386/target_arch_signal.h: use new target_os_ucontext.h, Warner Losh, 2021/11/04
[PATCH v4 15/36] bsd-user/arm/target_arch_cpu.h: CPU Loop definitions, Warner Losh, 2021/11/04
[PATCH v4 06/36] bsd-user/i386/target_arch_signal.h: Update mcontext_t to match FreeBSD,
Warner Losh <=
[PATCH v4 09/36] bsd-user/x86_64/target_arch_signal.h: use new target_os_ucontext.h, Warner Losh, 2021/11/04
[PATCH v4 11/36] bsd-user/x86_64: Move functions into signal.c, Warner Losh, 2021/11/04
[PATCH v4 18/36] bsd-user/arm/target_arch_cpu.h: Implement trivial EXCP exceptions, Warner Losh, 2021/11/04
[PATCH v4 13/36] bsd-user/arm/target_syscall.h: Add copyright and update name, Warner Losh, 2021/11/04
[PATCH v4 14/36] bsd-user/arm/target_arch_cpu.c: Target specific TLS routines, Warner Losh, 2021/11/04
[PATCH v4 16/36] bsd-user/arm/target_arch_cpu.h: Implement target_cpu_clone_regs, Warner Losh, 2021/11/04
[PATCH v4 19/36] bsd-user/arm/target_arch_cpu.h: Implement data abort exceptions, Warner Losh, 2021/11/04