X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fgdbserver%2Flinux-arm-low.c;h=9f046c098bf1cc067919fa26aa260d942fbdf870;hb=e8319fde715960466aca2461c74cec8907abd391;hp=7d6c9d9dd9659ed9d43107107e627857e05b04d4;hpb=166a82be89008621a31e6e56b2d52a049b53e341;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/gdbserver/linux-arm-low.c b/gdb/gdbserver/linux-arm-low.c
index 7d6c9d9dd9..9f046c098b 100644
--- a/gdb/gdbserver/linux-arm-low.c
+++ b/gdb/gdbserver/linux-arm-low.c
@@ -1,5 +1,5 @@
 /* GNU/Linux/ARM specific low level interface, for the remote server for GDB.
-   Copyright (C) 1995-2019 Free Software Foundation, Inc.
+   Copyright (C) 1995-2020 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -22,6 +22,8 @@
 #include "arch/arm-linux.h"
 #include "arch/arm-get-next-pcs.h"
 #include "linux-aarch32-low.h"
+#include "linux-aarch32-tdesc.h"
+#include "linux-arm-tdesc.h"
 
 #include <sys/uio.h>
 /* Don't include elf.h if linux/elf.h got included by gdb_proc_service.h.
@@ -33,19 +35,6 @@
 #include <signal.h>
 #include <sys/syscall.h>
 
-/* Defined in auto-generated files.  */
-void init_registers_arm (void);
-extern const struct target_desc *tdesc_arm;
-
-void init_registers_arm_with_iwmmxt (void);
-extern const struct target_desc *tdesc_arm_with_iwmmxt;
-
-void init_registers_arm_with_vfpv2 (void);
-extern const struct target_desc *tdesc_arm_with_vfpv2;
-
-void init_registers_arm_with_vfpv3 (void);
-extern const struct target_desc *tdesc_arm_with_vfpv3;
-
 #ifndef PTRACE_GET_THREAD_AREA
 #define PTRACE_GET_THREAD_AREA 22
 #endif
@@ -175,7 +164,7 @@ arm_cannot_fetch_register (int regno)
 static void
 arm_fill_wmmxregset (struct regcache *regcache, void *buf)
 {
-  if (regcache->tdesc != tdesc_arm_with_iwmmxt)
+  if (arm_linux_get_tdesc_fp_type (regcache->tdesc) != ARM_FP_TYPE_IWMMXT)
     return;
 
   for (int i = 0; i < 16; i++)
@@ -190,7 +179,7 @@ arm_fill_wmmxregset (struct regcache *regcache, void *buf)
 static void
 arm_store_wmmxregset (struct regcache *regcache, const void *buf)
 {
-  if (regcache->tdesc != tdesc_arm_with_iwmmxt)
+  if (arm_linux_get_tdesc_fp_type (regcache->tdesc) != ARM_FP_TYPE_IWMMXT)
     return;
 
   for (int i = 0; i < 16; i++)
@@ -207,13 +196,19 @@ arm_fill_vfpregset (struct regcache *regcache, void *buf)
 {
   int num;
 
-  if (regcache->tdesc == tdesc_arm_with_neon
-      || regcache->tdesc == tdesc_arm_with_vfpv3)
+  if (is_aarch32_linux_description (regcache->tdesc))
     num = 32;
-  else if (regcache->tdesc == tdesc_arm_with_vfpv2)
-    num = 16;
   else
-    return;
+    {
+      arm_fp_type fp_type = arm_linux_get_tdesc_fp_type (regcache->tdesc);
+
+      if (fp_type == ARM_FP_TYPE_VFPV3)
+	num = 32;
+      else if (fp_type == ARM_FP_TYPE_VFPV2)
+	num = 16;
+      else
+	return;
+    }
 
   arm_fill_vfpregset_num (regcache, buf, num);
 }
@@ -230,13 +225,19 @@ arm_store_vfpregset (struct regcache *regcache, const void *buf)
 {
   int num;
 
-  if (regcache->tdesc == tdesc_arm_with_neon
-      || regcache->tdesc == tdesc_arm_with_vfpv3)
+  if (is_aarch32_linux_description (regcache->tdesc))
     num = 32;
-  else if (regcache->tdesc == tdesc_arm_with_vfpv2)
-    num = 16;
   else
-    return;
+    {
+      arm_fp_type fp_type = arm_linux_get_tdesc_fp_type (regcache->tdesc);
+
+      if (fp_type == ARM_FP_TYPE_VFPV3)
+	num = 32;
+      else if (fp_type == ARM_FP_TYPE_VFPV2)
+	num = 16;
+      else
+	return;
+    }
 
   arm_store_vfpregset_num (regcache, buf, num);
 }
@@ -248,7 +249,7 @@ get_next_pcs_is_thumb (struct arm_get_next_pcs *self)
   return arm_is_thumb_mode ();
 }
 
-/* Read memory from the inferiror.
+/* Read memory from the inferior.
    BYTE_ORDER is ignored and there to keep compatiblity with GDB's
    read_memory_unsigned_integer. */
 static ULONGEST
@@ -849,7 +850,7 @@ arm_read_description (void)
   unsigned long arm_hwcap = linux_get_hwcap (4);
 
   if (arm_hwcap & HWCAP_IWMMXT)
-    return tdesc_arm_with_iwmmxt;
+    return arm_linux_read_description (ARM_FP_TYPE_IWMMXT);
 
   if (arm_hwcap & HWCAP_VFP)
     {
@@ -859,21 +860,21 @@ arm_read_description (void)
       errno = 0;
       char *buf = (char *) alloca (ARM_VFP3_REGS_SIZE);
       if (ptrace (PTRACE_GETVFPREGS, pid, 0, buf) < 0 && errno == EIO)
-	return tdesc_arm;
+	return arm_linux_read_description (ARM_FP_TYPE_NONE);
 
       /* NEON implies either no VFP, or VFPv3-D32.  We only support
 	 it with VFP.  */
       if (arm_hwcap & HWCAP_NEON)
-	return tdesc_arm_with_neon;
+	return aarch32_linux_read_description ();
       else if ((arm_hwcap & (HWCAP_VFPv3 | HWCAP_VFPv3D16)) == HWCAP_VFPv3)
-	return tdesc_arm_with_vfpv3;
+	return arm_linux_read_description (ARM_FP_TYPE_VFPV3);
       else
-	return tdesc_arm_with_vfpv2;
+	return arm_linux_read_description (ARM_FP_TYPE_VFPV2);
     }
 
   /* The default configuration uses legacy FPA registers, probably
      simulated.  */
-  return tdesc_arm;
+  return arm_linux_read_description (ARM_FP_TYPE_NONE);
 }
 
 static void
@@ -997,10 +998,11 @@ arm_regs_info (void)
   const struct target_desc *tdesc = current_process ()->tdesc;
 
   if (have_ptrace_getregset == 1
-      && (tdesc == tdesc_arm_with_neon || tdesc == tdesc_arm_with_vfpv3))
+      && (is_aarch32_linux_description (tdesc)
+	  || arm_linux_get_tdesc_fp_type (tdesc) == ARM_FP_TYPE_VFPV3))
     return &regs_info_aarch32;
-  else
-    return &regs_info_arm;
+
+  return &regs_info_arm;
 }
 
 struct linux_target_ops the_low_target = {
@@ -1045,13 +1047,6 @@ struct linux_target_ops the_low_target = {
 void
 initialize_low_arch (void)
 {
-  /* Initialize the Linux target descriptions.  */
-  init_registers_arm ();
-  init_registers_arm_with_iwmmxt ();
-  init_registers_arm_with_vfpv2 ();
-  init_registers_arm_with_vfpv3 ();
-
   initialize_low_arch_aarch32 ();
-
   initialize_regsets_info (&arm_regsets_info);
 }