gmp-utils: New API to simply use of GMP's integer/rational/float objects

[deliverable/binutils-gdb.git] / gdb / nat / aarch64-sve-linux-ptrace.h

diff --git a/gdb/nat/aarch64-sve-linux-ptrace.h b/gdb/nat/aarch64-sve-linux-ptrace.h
index a32ddf16768fa1985400ee05c37025b0be14b604..2a511bb026e4cd9bc95f1675ef9850eb53f8302b 100644 (file)
--- a/gdb/nat/aarch64-sve-linux-ptrace.h
+++ b/gdb/nat/aarch64-sve-linux-ptrace.h
@@ -1,6 +1,6 @@
 /* Common target dependent for AArch64 systems.
 
-   Copyright (C) 2018 Free Software Foundation, Inc.
+   Copyright (C) 2018-2020 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -17,57 +17,50 @@
    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 AARCH64_SVE_LINUX_PTRACE_H
-#define AARCH64_SVE_LINUX_PTRACE_H
+#ifndef NAT_AARCH64_SVE_LINUX_PTRACE_H
+#define NAT_AARCH64_SVE_LINUX_PTRACE_H
 
-/* Where indicated, this file contains defines and macros lifted directly from
-   the Linux kernel headers, with no modification.
-   Refer to Linux kernel documentation for details.  */
-
-#include <asm/sigcontext.h>
+#include <signal.h>
 #include <sys/utsname.h>
 #include <sys/ptrace.h>
 #include <asm/ptrace.h>
 
-/* Read VQ for the given tid using ptrace.  If SVE is not supported then zero
-   is returned (on a system that supports SVE, then VQ cannot be zero).  */
-
-extern unsigned long aarch64_sve_get_vq (int tid);
-
-/* Structures and defines taken from sigcontext.h.  */
-
 #ifndef SVE_SIG_ZREGS_SIZE
+#include "aarch64-sve-linux-sigcontext.h"
+#endif
+
+/* Indicates whether a SVE ptrace header is followed by SVE registers or a
+   fpsimd structure.  */
 
-#define SVE_VQ_BYTES           16      /* number of bytes per quadword */
+#define HAS_SVE_STATE(header) ((header).flags & SVE_PT_REGS_SVE)
 
-#define SVE_VQ_MIN             1
-#define SVE_VQ_MAX             512
+/* Read VQ for the given tid using ptrace.  If SVE is not supported then zero
+   is returned (on a system that supports SVE, then VQ cannot be zero).  */
 
-#define SVE_VL_MIN             (SVE_VQ_MIN * SVE_VQ_BYTES)
-#define SVE_VL_MAX             (SVE_VQ_MAX * SVE_VQ_BYTES)
+uint64_t aarch64_sve_get_vq (int tid);
 
-#define SVE_NUM_ZREGS          32
-#define SVE_NUM_PREGS          16
+/* Set VQ in the kernel for the given tid, using either the value VQ or
+   reading from the register VG in the register buffer.  */
 
-#define sve_vl_valid(vl) \
-       ((vl) % SVE_VQ_BYTES == 0 && (vl) >= SVE_VL_MIN && (vl) <= SVE_VL_MAX)
+bool aarch64_sve_set_vq (int tid, uint64_t vq);
+bool aarch64_sve_set_vq (int tid, struct reg_buffer_common *reg_buf);
 
-#endif /* SVE_SIG_ZREGS_SIZE.  */
+/* Read the current SVE register set using ptrace, allocating space as
+   required.  */
 
+extern std::unique_ptr<gdb_byte[]> aarch64_sve_get_sveregs (int tid);
 
-/* Structures and defines taken from ptrace.h.  */
+/* Put the registers from linux structure buf into register buffer.  Assumes the
+   vector lengths in the register buffer match the size in the kernel.  */
 
-#ifndef SVE_PT_SVE_ZREG_SIZE
+extern void aarch64_sve_regs_copy_to_reg_buf (struct reg_buffer_common *reg_buf,
+                                             const void *buf);
 
-struct user_sve_header {
-       __u32 size; /* total meaningful regset content in bytes */
-       __u32 max_size; /* maxmium possible size for this thread */
-       __u16 vl; /* current vector length */
-       __u16 max_vl; /* maximum possible vector length */
-       __u16 flags;
-       __u16 __reserved;
-};
+/* Put the registers from register buffer into linux structure buf.  Assumes the
+   vector lengths in the register buffer match the size in the kernel.  */
 
-#endif /* SVE_PT_SVE_ZREG_SIZE.  */
+extern void
+aarch64_sve_regs_copy_from_reg_buf (const struct reg_buffer_common *reg_buf,
+                                   void *buf);
 
-#endif /* aarch64-sve-linux-ptrace.h */
+#endif /* NAT_AARCH64_SVE_LINUX_PTRACE_H */