cpu,opcodes,gas: fix explicit arguments to eBPF ldabs instructions

[deliverable/binutils-gdb.git] / gdb / arm-linux-nat.c

diff --git a/gdb/arm-linux-nat.c b/gdb/arm-linux-nat.c
index c86c97d895ac1ec6555398b8318bddec80102661..fe8a113a27064487ff81076db07c42829ceba486 100644 (file)
--- a/gdb/arm-linux-nat.c
+++ b/gdb/arm-linux-nat.c
@@ -276,8 +276,6 @@ store_regs (const struct regcache *regcache)
 /* Fetch all WMMX registers of the process and store into
    regcache.  */
 
-#define IWMMXT_REGS_SIZE (16 * 8 + 6 * 4)
-
 static void
 fetch_wmmx_regs (struct regcache *regcache)
 {
@@ -339,7 +337,7 @@ store_wmmx_regs (const struct regcache *regcache)
 static void
 fetch_vfp_regs (struct regcache *regcache)
 {
-  gdb_byte regbuf[VFP_REGS_SIZE];
+  gdb_byte regbuf[ARM_VFP3_REGS_SIZE];
   int ret, tid;
   struct gdbarch *gdbarch = regcache->arch ();
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
@@ -352,7 +350,7 @@ fetch_vfp_regs (struct regcache *regcache)
       struct iovec iov;
 
       iov.iov_base = regbuf;
-      iov.iov_len = VFP_REGS_SIZE;
+      iov.iov_len = ARM_VFP3_REGS_SIZE;
       ret = ptrace (PTRACE_GETREGSET, tid, NT_ARM_VFP, &iov);
     }
   else
@@ -368,7 +366,7 @@ fetch_vfp_regs (struct regcache *regcache)
 static void
 store_vfp_regs (const struct regcache *regcache)
 {
-  gdb_byte regbuf[VFP_REGS_SIZE];
+  gdb_byte regbuf[ARM_VFP3_REGS_SIZE];
   int ret, tid;
   struct gdbarch *gdbarch = regcache->arch ();
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
@@ -381,7 +379,7 @@ store_vfp_regs (const struct regcache *regcache)
       struct iovec iov;
 
       iov.iov_base = regbuf;
-      iov.iov_len = VFP_REGS_SIZE;
+      iov.iov_len = ARM_VFP3_REGS_SIZE;
       ret = ptrace (PTRACE_GETREGSET, tid, NT_ARM_VFP, &iov);
     }
   else
@@ -398,7 +396,7 @@ store_vfp_regs (const struct regcache *regcache)
       struct iovec iov;
 
       iov.iov_base = regbuf;
-      iov.iov_len = VFP_REGS_SIZE;
+      iov.iov_len = ARM_VFP3_REGS_SIZE;
       ret = ptrace (PTRACE_SETREGSET, tid, NT_ARM_VFP, &iov);
     }
   else
@@ -557,29 +555,22 @@ arm_linux_nat_target::read_description ()
 
   if (arm_hwcap & HWCAP_VFP)
     {
-      int pid;
-      char *buf;
-      const struct target_desc * result = NULL;
+      /* Make sure that the kernel supports reading VFP registers.  Support was
+        added in 2.6.30.  */
+      int pid = inferior_ptid.lwp ();
+      errno = 0;
+      char *buf = (char *) alloca (ARM_VFP3_REGS_SIZE);
+      if (ptrace (PTRACE_GETVFPREGS, pid, 0, buf) < 0 && errno == EIO)
+       return nullptr;
 
       /* NEON implies VFPv3-D32 or no-VFP unit.  Say that we only support
         Neon with VFPv3-D32.  */
       if (arm_hwcap & HWCAP_NEON)
-       result = tdesc_arm_with_neon;
+       return tdesc_arm_with_neon;
       else if ((arm_hwcap & (HWCAP_VFPv3 | HWCAP_VFPv3D16)) == HWCAP_VFPv3)
-       result = tdesc_arm_with_vfpv3;
+       return tdesc_arm_with_vfpv3;
       else
-       result = tdesc_arm_with_vfpv2;
-
-      /* Now make sure that the kernel supports reading these
-        registers.  Support was added in 2.6.30.  */
-      pid = inferior_ptid.lwp ();
-      errno = 0;
-      buf = (char *) alloca (VFP_REGS_SIZE);
-      if (ptrace (PTRACE_GETVFPREGS, pid, 0, buf) < 0
-         && errno == EIO)
-       result = NULL;
-
-      return result;
+       return tdesc_arm_with_vfpv2;
     }
 
   return this->beneath ()->read_description ();