[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH v3 22/29] bsd-user/arm/target_arch_signal.h: arm get_mcontext
From: |
Warner Losh |
Subject: |
[PATCH v3 22/29] bsd-user/arm/target_arch_signal.h: arm get_mcontext |
Date: |
Thu, 4 Nov 2021 08:05:29 -0600 |
Get the machine context from the CPU state.
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
bsd-user/arm/target_arch_signal.h | 50 +++++++++++++++++++++++++++++++
1 file changed, 50 insertions(+)
diff --git a/bsd-user/arm/target_arch_signal.h
b/bsd-user/arm/target_arch_signal.h
index e673132c68..ebb44d10dc 100644
--- a/bsd-user/arm/target_arch_signal.h
+++ b/bsd-user/arm/target_arch_signal.h
@@ -121,4 +121,54 @@ set_sigtramp_args(CPUARMState *env, int sig, struct
target_sigframe *frame,
return 0;
}
+/*
+ * Compare to arm/arm/machdep.c get_mcontext()
+ * Assumes that the memory is locked if mcp points to user memory.
+ */
+static inline abi_long get_mcontext(CPUARMState *env, target_mcontext_t *mcp,
+ int flags)
+{
+ int err = 0;
+ uint32_t *gr = mcp->__gregs;
+
+ if (mcp->mc_vfp_size != 0 && mcp->mc_vfp_size !=
sizeof(target_mcontext_vfp_t)) {
+ return -TARGET_EINVAL;
+ }
+
+ gr[TARGET_REG_CPSR] = tswap32(cpsr_read(env));
+ if (flags & TARGET_MC_GET_CLEAR_RET) {
+ gr[TARGET_REG_R0] = 0;
+ gr[TARGET_REG_CPSR] &= ~CPSR_C;
+ } else {
+ gr[TARGET_REG_R0] = tswap32(env->regs[0]);
+ }
+
+ gr[TARGET_REG_R1] = tswap32(env->regs[1]);
+ gr[TARGET_REG_R2] = tswap32(env->regs[2]);
+ gr[TARGET_REG_R3] = tswap32(env->regs[3]);
+ gr[TARGET_REG_R4] = tswap32(env->regs[4]);
+ gr[TARGET_REG_R5] = tswap32(env->regs[5]);
+ gr[TARGET_REG_R6] = tswap32(env->regs[6]);
+ gr[TARGET_REG_R7] = tswap32(env->regs[7]);
+ gr[TARGET_REG_R8] = tswap32(env->regs[8]);
+ gr[TARGET_REG_R9] = tswap32(env->regs[9]);
+ gr[TARGET_REG_R10] = tswap32(env->regs[10]);
+ gr[TARGET_REG_R11] = tswap32(env->regs[11]);
+ gr[TARGET_REG_R12] = tswap32(env->regs[12]);
+
+ gr[TARGET_REG_SP] = tswap32(env->regs[13]);
+ gr[TARGET_REG_LR] = tswap32(env->regs[14]);
+ gr[TARGET_REG_PC] = tswap32(env->regs[15]);
+
+ if (mcp->mc_vfp_size != 0 && mcp->mc_vfp_ptr != NULL) {
+ /* see get_vfpcontext in sys/arm/arm/exec_machdep.c */
+ target_mcontext_vfp_t *vfp = (target_mcontext_vfp_t *)mcp->mc_vfp_ptr;
+ for (int i = 0; i < 32; i++) {
+ vfp->mcv_reg[i] = tswap64(*aa32_vfp_dreg(env, i));
+ }
+ vfp->mcv_fpscr = tswap32(vfp_get_fpscr(env));
+ }
+ return err;
+}
+
#endif /* !_TARGET_ARCH_SIGNAL_H_ */
--
2.33.0
- [PATCH v3 17/29] bsd-user/freebsd: Create common target_os_ucontext.h file, (continued)
- [PATCH v3 17/29] bsd-user/freebsd: Create common target_os_ucontext.h file, Warner Losh, 2021/11/04
- [PATCH v3 18/29] bsd-user/arm/target_arch_signal.h: arm specific signal registers and stack, Warner Losh, 2021/11/04
- [PATCH v3 21/29] bsd-user/arm/target_arch_signal.h: arm set_sigtramp_args, Warner Losh, 2021/11/04
- [PATCH v3 16/29] bsd-user/arm/target_arch_elf.h: arm get_hwcap2 impl, Warner Losh, 2021/11/04
- [PATCH v3 19/29] bsd-user/arm/target_arch_signal.h: arm machine context for signals, Warner Losh, 2021/11/04
- [PATCH v3 20/29] bsd-user/arm/target_arch_signal.h: arm user context and trapframe for signals, Warner Losh, 2021/11/04
- [PATCH v3 22/29] bsd-user/arm/target_arch_signal.h: arm get_mcontext,
Warner Losh <=
- [PATCH v3 23/29] bsd-user/arm/target_arch_signal.h: arm set_mcontext, Warner Losh, 2021/11/04
- [PATCH v3 25/29] bsd-user: add arm target build, Warner Losh, 2021/11/04
- [PATCH v3 24/29] bsd-user/arm/target_arch_signal.h: arm get_ucontext_sigreturn, Warner Losh, 2021/11/04
- [PATCH v3 26/29] bsd-user/i386/target_arch_signal.h: Remove target_sigcontext, Warner Losh, 2021/11/04
- [PATCH v3 27/29] bsd-user/x86_64/target_arch_signal.h: Remove target_sigcontext, Warner Losh, 2021/11/04
- [PATCH v3 29/29] bsd-user/x86_64/target_arch_signal.h: use new target_os_ucontext.h, Warner Losh, 2021/11/04
- [PATCH v3 28/29] bsd-user/i386/target_arch_signal.h: use new target_os_ucontext.h, Warner Losh, 2021/11/04