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[PATCH v2 34/43] bsd-user: Add target_arch_reg to describe a target's re
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From: |
imp |
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Subject: |
[PATCH v2 34/43] bsd-user: Add target_arch_reg to describe a target's register set |
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Date: |
Thu, 26 Aug 2021 15:11:52 -0600 |
From: Warner Losh <imp@FreeBSD.org>
target_reg_t is the normal register. target_fpreg_t is the floating
point registers. target_copy_regs copies the registers out of CPU
context for things like core dumps.
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
bsd-user/i386/target_arch_reg.h | 82 +++++++++++++++++++++++++++
bsd-user/x86_64/target_arch_reg.h | 92 +++++++++++++++++++++++++++++++
2 files changed, 174 insertions(+)
create mode 100644 bsd-user/i386/target_arch_reg.h
create mode 100644 bsd-user/x86_64/target_arch_reg.h
diff --git a/bsd-user/i386/target_arch_reg.h b/bsd-user/i386/target_arch_reg.h
new file mode 100644
index 0000000000..1fce1daf01
--- /dev/null
+++ b/bsd-user/i386/target_arch_reg.h
@@ -0,0 +1,82 @@
+/*
+ * FreeBSD i386 register structures
+ *
+ * Copyright (c) 2015 Stacey Son
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _TARGET_ARCH_REG_H_
+#define _TARGET_ARCH_REG_H_
+
+/* See sys/i386/include/reg.h */
+typedef struct target_reg {
+ uint32_t r_fs;
+ uint32_t r_es;
+ uint32_t r_ds;
+ uint32_t r_edi;
+ uint32_t r_esi;
+ uint32_t r_ebp;
+ uint32_t r_isp;
+ uint32_t r_ebx;
+ uint32_t r_edx;
+ uint32_t r_ecx;
+ uint32_t r_eax;
+ uint32_t r_trapno;
+ uint32_t r_err;
+ uint32_t r_eip;
+ uint32_t r_cs;
+ uint32_t r_eflags;
+ uint32_t r_esp;
+ uint32_t r_ss;
+ uint32_t r_gs;
+} target_reg_t;
+
+typedef struct target_fpreg {
+ uint32_t fpr_env[7];
+ uint8_t fpr_acc[8][10];
+ uint32_t fpr_ex_sw;
+ uint8_t fpr_pad[64];
+} target_fpreg_t;
+
+static inline void target_copy_regs(target_reg_t *regs, const CPUX86State *env)
+{
+
+ regs->r_fs = env->segs[R_FS].selector & 0xffff;
+ regs->r_es = env->segs[R_ES].selector & 0xffff;
+ regs->r_ds = env->segs[R_DS].selector & 0xffff;
+
+ regs->r_edi = env->regs[R_EDI];
+ regs->r_esi = env->regs[R_ESI];
+ regs->r_ebp = env->regs[R_EBP];
+ /* regs->r_isp = env->regs[R_ISP]; XXX */
+ regs->r_ebx = env->regs[R_EBX];
+ regs->r_edx = env->regs[R_EDX];
+ regs->r_ecx = env->regs[R_ECX];
+ regs->r_eax = env->regs[R_EAX];
+ /* regs->r_trapno = env->regs[R_TRAPNO]; XXX */
+ regs->r_err = env->error_code; /* XXX ? */
+ regs->r_eip = env->eip;
+
+ regs->r_cs = env->segs[R_CS].selector & 0xffff;
+
+ regs->r_eflags = env->eflags;
+ regs->r_esp = env->regs[R_ESP];
+
+ regs->r_ss = env->segs[R_SS].selector & 0xffff;
+ regs->r_gs = env->segs[R_GS].selector & 0xffff;
+}
+
+#endif /* !_TARGET_ARCH_REG_H_ */
diff --git a/bsd-user/x86_64/target_arch_reg.h
b/bsd-user/x86_64/target_arch_reg.h
new file mode 100644
index 0000000000..00e9624517
--- /dev/null
+++ b/bsd-user/x86_64/target_arch_reg.h
@@ -0,0 +1,92 @@
+/*
+ * FreeBSD amd64 register structures
+ *
+ * Copyright (c) 2015 Stacey Son
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _TARGET_ARCH_REG_H_
+#define _TARGET_ARCH_REG_H_
+
+/* See sys/amd64/include/reg.h */
+typedef struct target_reg {
+ uint64_t r_r15;
+ uint64_t r_r14;
+ uint64_t r_r13;
+ uint64_t r_r12;
+ uint64_t r_r11;
+ uint64_t r_r10;
+ uint64_t r_r9;
+ uint64_t r_r8;
+ uint64_t r_rdi;
+ uint64_t r_rsi;
+ uint64_t r_rbp;
+ uint64_t r_rbx;
+ uint64_t r_rdx;
+ uint64_t r_rcx;
+ uint64_t r_rax;
+ uint32_t r_trapno;
+ uint16_t r_fs;
+ uint16_t r_gs;
+ uint32_t r_err;
+ uint16_t r_es;
+ uint16_t r_ds;
+ uint64_t r_rip;
+ uint64_t r_cs;
+ uint64_t r_rflags;
+ uint64_t r_rsp;
+ uint64_t r_ss;
+} target_reg_t;
+
+typedef struct target_fpreg {
+ uint64_t fpr_env[4];
+ uint8_t fpr_acc[8][16];
+ uint8_t fpr_xacc[16][16];
+ uint64_t fpr_spare[12];
+} target_fpreg_t;
+
+static inline void target_copy_regs(target_reg_t *regs, const CPUX86State *env)
+{
+
+ regs->r_r15 = env->regs[15];
+ regs->r_r14 = env->regs[14];
+ regs->r_r13 = env->regs[13];
+ regs->r_r12 = env->regs[12];
+ regs->r_r11 = env->regs[11];
+ regs->r_r10 = env->regs[10];
+ regs->r_r9 = env->regs[9];
+ regs->r_r8 = env->regs[8];
+ regs->r_rdi = env->regs[R_EDI];
+ regs->r_rsi = env->regs[R_ESI];
+ regs->r_rbp = env->regs[R_EBP];
+ regs->r_rbx = env->regs[R_EBX];
+ regs->r_rdx = env->regs[R_EDX];
+ regs->r_rcx = env->regs[R_ECX];
+ regs->r_rax = env->regs[R_EAX];
+ /* regs->r_trapno = env->regs[R_TRAPNO]; XXX */
+ regs->r_fs = env->segs[R_FS].selector & 0xffff;
+ regs->r_gs = env->segs[R_GS].selector & 0xffff;
+ regs->r_err = env->error_code; /* XXX ? */
+ regs->r_es = env->segs[R_ES].selector & 0xffff;
+ regs->r_ds = env->segs[R_DS].selector & 0xffff;
+ regs->r_rip = env->eip;
+ regs->r_cs = env->segs[R_CS].selector & 0xffff;
+ regs->r_rflags = env->eflags;
+ regs->r_rsp = env->regs[R_ESP];
+ regs->r_ss = env->segs[R_SS].selector & 0xffff;
+}
+
+#endif /* !_TARGET_ARCH_REG_H_ */
--
2.32.0
- [PATCH v2 24/43] bsd-user: Create target specific vmparam.h, (continued)
- [PATCH v2 24/43] bsd-user: Create target specific vmparam.h, imp, 2021/08/26
- [PATCH v2 26/43] bsd-user: *BSD specific siginfo defintions, imp, 2021/08/26
- [PATCH v2 21/43] bsd-user: pull in target_arch_thread.h update target_arch_elf.h, imp, 2021/08/26
- [PATCH v2 32/43] bsd-user: Make cpu_model and cpu_type visible to all of main.c, imp, 2021/08/26
- [PATCH v2 33/43] bsd-user: update debugging in mmap.c, imp, 2021/08/26
- [PATCH v2 39/43] bsd-user: move qemu_log to later in the file, imp, 2021/08/26
- [PATCH v2 29/43] bsd-user: elf cleanup, imp, 2021/08/26
- [PATCH v2 31/43] bsd-user: Rewrite target system call definintion glue, imp, 2021/08/26
- [PATCH v2 25/43] bsd-user: Add architecture specific signal tramp code, imp, 2021/08/26
- [PATCH v2 27/43] bsd-user: Move stack initializtion into a per-os file., imp, 2021/08/26
- [PATCH v2 34/43] bsd-user: Add target_arch_reg to describe a target's register set,
imp <=
- [PATCH v2 30/43] bsd-user: Remove dead #ifdefs from elfload.c, imp, 2021/08/26
[PATCH v2 36/43] bsd-user: add stubbed out core dump support, imp, 2021/08/26
[PATCH v2 38/43] bsd-user: Refactor load_elf_sections and is_target_elf_binary, imp, 2021/08/26
[PATCH v2 42/43] bsd-user: Add '-0 argv0' option to bsd-user/main.c, imp, 2021/08/26