Fix riscv-linux native gdb build failure.

The linux kernel uses NT_PRFPREG.  Glibc before BZ 14890 defines NT_FPREGSET.
After it defines both.  Avoid glibc version dependency by using the gdb header
file instead of the glibc header file, and the macro name that gdb defines
which is NT_FPREGSET.

	gdb/
	* riscv-linux-nat.c: Include elf/common.h instead of elf.h.
	(riscv_linux_nat_target::fetch_registers): Use NT_FPREGSET instead
	of NT_PRFPREG.
	(riscv_linux_nat_target::store_registers): Likewise.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index a30dace..e89fbec 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,10 @@
+2018-08-29  Jim Wilson  <jimw@sifive.com>
+
+       * riscv-linux-nat.c: Include elf/common.h instead of elf.h.
+       (riscv_linux_nat_target::fetch_registers): Use NT_FPREGSET instead
+       of NT_PRFPREG.
+       (riscv_linux_nat_target::store_registers): Likewise.
+
 2018-08-29  Sergio Durigan Junior  <sergiodj@redhat.com>
 
        PR gdb/23555

diff --git a/gdb/riscv-linux-nat.c b/gdb/riscv-linux-nat.c
index 3faa9f9..7dbfe65 100644 (file)
--- a/gdb/riscv-linux-nat.c
+++ b/gdb/riscv-linux-nat.c
@@ -20,9 +20,10 @@
 #include "regcache.h"
 #include "gregset.h"
 #include "linux-nat.h"
-#include "elf.h"
 #include "riscv-tdep.h"
 
+#include "elf/common.h"
+
 #include <sys/ptrace.h>
 
 /* RISC-V Linux native additions to the default linux support.  */
@@ -191,7 +192,7 @@ riscv_linux_nat_target::fetch_registers (struct regcache *regcache, int regnum)
       iov.iov_base = &regs;
       iov.iov_len = sizeof (regs);
 
-      if (ptrace (PTRACE_GETREGSET, tid, NT_PRFPREG,
+      if (ptrace (PTRACE_GETREGSET, tid, NT_FPREGSET,
                  (PTRACE_TYPE_ARG3) &iov) == -1)
        perror_with_name (_("Couldn't get registers"));
       else
@@ -252,14 +253,14 @@ riscv_linux_nat_target::store_registers (struct regcache *regcache, int regnum)
       iov.iov_base = &regs;
       iov.iov_len = sizeof (regs);
 
-      if (ptrace (PTRACE_GETREGSET, tid, NT_PRFPREG,
+      if (ptrace (PTRACE_GETREGSET, tid, NT_FPREGSET,
                  (PTRACE_TYPE_ARG3) &iov) == -1)
        perror_with_name (_("Couldn't get registers"));
       else
        {
          fill_fpregset (regcache, &regs, regnum);
 
-         if (ptrace (PTRACE_SETREGSET, tid, NT_PRFPREG,
+         if (ptrace (PTRACE_SETREGSET, tid, NT_FPREGSET,
                      (PTRACE_TYPE_ARG3) &iov) == -1)
            perror_with_name (_("Couldn't set registers"));
        }