diff mbox series

[18/23] Add ARM AArch64 specific signal definitions for bsd-user

Message ID 20240617185804.25075-19-itachis@FreeBSD.org
State New
Headers show
Series ARM AArch64 Support for BSD | expand

Commit Message

Ajeet Singh June 17, 2024, 6:57 p.m. UTC 
From: Stacey Son <sson@FreeBSD.org>

Defined register indices and sizes,introduced structures to represent
general purpose registers, floating point registers, and machine context

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Ajeet Singh <itachis@FreeBSD.org>
Co-authored-by: Warner Losh <imp@bsdimp.com>
---
 bsd-user/aarch64/target_arch_signal.h | 80 +++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 bsd-user/aarch64/target_arch_signal.h

Comments

Richard Henderson June 18, 2024, 10:35 p.m. UTC | #1 
On 6/17/24 11:57, Ajeet Singh wrote:
> From: Stacey Son <sson@FreeBSD.org>
> 
> Defined register indices and sizes,introduced structures to represent
> general purpose registers, floating point registers, and machine context
> 
> Signed-off-by: Stacey Son <sson@FreeBSD.org>
> Signed-off-by: Warner Losh <imp@bsdimp.com>
> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org>
> Co-authored-by: Warner Losh <imp@bsdimp.com>
> ---
>   bsd-user/aarch64/target_arch_signal.h | 80 +++++++++++++++++++++++++++
>   1 file changed, 80 insertions(+)
>   create mode 100644 bsd-user/aarch64/target_arch_signal.h
> 
> diff --git a/bsd-user/aarch64/target_arch_signal.h b/bsd-user/aarch64/target_arch_signal.h
> new file mode 100644
> index 0000000000..df17173316
> --- /dev/null
> +++ b/bsd-user/aarch64/target_arch_signal.h
> @@ -0,0 +1,80 @@
> +/*
> + * ARM AArch64 specific signal definitions for bsd-user
> + *
> + * Copyright (c) 2015 Stacey D. Son <sson at FreeBSD>
> + *
> + * This library is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU Lesser General Public
> + * License as published by the Free Software Foundation; either
> + * version 2 of the License, or (at your option) any later version.
> + *
> + * This library 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
> + * Lesser General Public License for more details.
> + *
> + * You should have received a copy of the GNU Lesser General Public
> + * License along with this library; if not, see <http://www.gnu.org/licenses/>.
> + */
> +
> +#ifndef TARGET_ARCH_SIGNAL_H
> +#define TARGET_ARCH_SIGNAL_H
> +
> +#include "cpu.h"
> +
> +#define TARGET_REG_X0   0
> +#define TARGET_REG_X30  30
> +#define TARGET_REG_X31  31
> +#define TARGET_REG_LR   TARGET_REG_X30
> +#define TARGET_REG_SP   TARGET_REG_X31
> +
> +#define TARGET_INSN_SIZE    4       /* arm64 instruction size */
> +
> +/* Size of the signal trampolin code. See _sigtramp(). */
> +#define TARGET_SZSIGCODE    ((abi_ulong)(9 * TARGET_INSN_SIZE))
> +
> +/* compare to sys/arm64/include/_limits.h */
> +#define TARGET_MINSIGSTKSZ  (1024 * 4)                  /* min sig stack size */
> +#define TARGET_SIGSTKSZ     (TARGET_MINSIGSTKSZ + 32768)  /* recommended size */
> +
> +/* struct __mcontext in sys/arm64/include/ucontext.h */
> +
> +struct target_gpregs {
> +    uint64_t    gp_x[30];
> +    uint64_t    gp_lr;
> +    uint64_t    gp_sp;
> +    uint64_t    gp_elr;
> +    uint32_t    gp_spsr;
> +    uint32_t    gp_pad;
> +};
> +
> +struct target_fpregs {
> +    __uint128_t fp_q[32];

Per patch 6, re not using __uint128_t directly.


r~
diff mbox series

Patch

diff --git a/bsd-user/aarch64/target_arch_signal.h b/bsd-user/aarch64/target_arch_signal.h
new file mode 100644
index 0000000000..df17173316
--- /dev/null
+++ b/bsd-user/aarch64/target_arch_signal.h
@@ -0,0 +1,80 @@ 
+/*
+ * ARM AArch64 specific signal definitions for bsd-user
+ *
+ * Copyright (c) 2015 Stacey D. Son <sson at FreeBSD>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef TARGET_ARCH_SIGNAL_H
+#define TARGET_ARCH_SIGNAL_H
+
+#include "cpu.h"
+
+#define TARGET_REG_X0   0
+#define TARGET_REG_X30  30
+#define TARGET_REG_X31  31
+#define TARGET_REG_LR   TARGET_REG_X30
+#define TARGET_REG_SP   TARGET_REG_X31
+
+#define TARGET_INSN_SIZE    4       /* arm64 instruction size */
+
+/* Size of the signal trampolin code. See _sigtramp(). */
+#define TARGET_SZSIGCODE    ((abi_ulong)(9 * TARGET_INSN_SIZE))
+
+/* compare to sys/arm64/include/_limits.h */
+#define TARGET_MINSIGSTKSZ  (1024 * 4)                  /* min sig stack size */
+#define TARGET_SIGSTKSZ     (TARGET_MINSIGSTKSZ + 32768)  /* recommended size */
+
+/* struct __mcontext in sys/arm64/include/ucontext.h */
+
+struct target_gpregs {
+    uint64_t    gp_x[30];
+    uint64_t    gp_lr;
+    uint64_t    gp_sp;
+    uint64_t    gp_elr;
+    uint32_t    gp_spsr;
+    uint32_t    gp_pad;
+};
+
+struct target_fpregs {
+    __uint128_t fp_q[32];
+    uint32_t    fp_sr;
+    uint32_t    fp_cr;
+    uint32_t    fp_flags;
+    uint32_t    fp_pad;
+};
+
+struct target__mcontext {
+    struct target_gpregs mc_gpregs;
+    struct target_fpregs mc_fpregs;
+    uint32_t    mc_flags;
+#define TARGET_MC_FP_VALID  0x1
+    uint32_t    mc_pad;
+    uint64_t    mc_spare[8];
+};
+
+typedef struct target__mcontext target_mcontext_t;
+
+#define TARGET_MCONTEXT_SIZE 880
+#define TARGET_UCONTEXT_SIZE 960
+
+#include "target_os_ucontext.h"
+
+struct target_sigframe {
+    target_siginfo_t    sf_si;  /* saved siginfo */
+    target_ucontext_t   sf_uc;  /* saved ucontext */
+};
+
+#endif /* TARGET_ARCH_SIGNAL_H */