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[PULL 06/37] bsd-user/i386/target_arch_signal.h: Update mcontext_t to ma
From: |
Warner Losh |
Subject: |
[PULL 06/37] bsd-user/i386/target_arch_signal.h: Update mcontext_t to match FreeBSD |
Date: |
Sat, 8 Jan 2022 00:37:06 -0700 |
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>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
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 bf7263c4f8d..701c6f964f8 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 {
--
2.33.1
- [PULL 00/37] Bsd user arm patches, Warner Losh, 2022/01/08
- [PULL 01/37] bsd-user/mips*: Remove mips support, Warner Losh, 2022/01/08
- [PULL 04/37] bsd-user/i386/target_arch_signal.h: Remove target_sigcontext, Warner Losh, 2022/01/08
- [PULL 06/37] bsd-user/i386/target_arch_signal.h: Update mcontext_t to match FreeBSD,
Warner Losh <=
- [PULL 11/37] bsd-user/x86_64: Move functions into signal.c, Warner Losh, 2022/01/08
- [PULL 19/37] bsd-user/arm/target_arch_cpu.h: Implement trivial EXCP exceptions, Warner Losh, 2022/01/08
- [PULL 25/37] bsd-user/arm/target_arch_thread.h: Routines to create and switch to a thread, Warner Losh, 2022/01/08
- [PULL 26/37] bsd-user/arm/target_arch_elf.h: arm defines for ELF, Warner Losh, 2022/01/08
- [PULL 27/37] bsd-user/arm/target_arch_elf.h: arm get hwcap, Warner Losh, 2022/01/08
- [PULL 05/37] bsd-user/i386/target_arch_signal.h: use new target_os_ucontext.h, Warner Losh, 2022/01/08
- [PULL 12/37] bsd-user/target_os_signal.h: Move signal prototypes to target_os_ucontext.h, Warner Losh, 2022/01/08
- [PULL 02/37] bsd-user/freebsd: Create common target_os_ucontext.h file, Warner Losh, 2022/01/08
- [PULL 07/37] bsd-user/i386: Move the inlines into signal.c, Warner Losh, 2022/01/08
- [PULL 13/37] bsd-user/arm/target_arch_sysarch.h: Use consistent include guards, Warner Losh, 2022/01/08