[binutils-gdb] Fix gdb.arch/aarch64-dbreg-contents.exp build failures

[binutils-gdb] Fix gdb.arch/aarch64-dbreg-contents.exp build failures

[Luis Machado]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=718e081605e86b7421afc1b3ab2e4918292dd254

commit 718e081605e86b7421afc1b3ab2e4918292dd254
Author: Luis Machado <luis.machado@linaro.org>
Date:   Tue Feb 25 10:09:19 2020 -0300

    Fix gdb.arch/aarch64-dbreg-contents.exp build failures
    
    I ran into the following failures when running tests under QEMU:
    
    --
    
    gdb compile failed, binutils-gdb/gdb/testsuite/gdb.arch/aarch64-dbreg-contents.c: In function 'set_watchpoint':
    binutils-gdb/gdb/testsuite/gdb.arch/aarch64-dbreg-contents.c:41:29: error: storage size of 'dreg_state' isn't known
       struct user_hwdebug_state dreg_state;
                                 ^~~~~~~~~~
    In file included from /usr/include/aarch64-linux-gnu/bits/types/struct_iovec.h:23:0,
                     from /usr/include/aarch64-linux-gnu/sys/uio.h:23,
                     from binutils-gdb/gdb/testsuite/gdb.arch/aarch64-dbreg-contents.c:17:
    binutils-gdb/gdb/testsuite/gdb.arch/aarch64-dbreg-contents.c:69:18: error: invalid use of undefined type 'struct user_hwdebug_state'
       iov.iov_len = (offsetof (struct user_hwdebug_state, dbg_regs)
                      ^
    binutils-gdb/gdb/testsuite/gdb.arch/aarch64-dbreg-contents.c:74:5: warning: implicit declaration of function 'error'; did you mean 'errno'? [-Wimplicit-function-declaration]
         error (1, errno, "PTRACE_SETREGSET: NT_ARM_HW_WATCH");
         ^~~~~
         errno
    binutils-gdb/gdb/testsuite/gdb.arch/aarch64-dbreg-contents.c: In function 'main':
    binutils-gdb/gdb/testsuite/gdb.arch/aarch64-dbreg-contents.c:87:3: warning: implicit declaration of function 'atexit'; did you mean '_Exit'? [-Wimplicit-function-declaration]
       atexit (cleanup);
       ^~~~~~
       _Exit
    binutils-gdb/gdb/testsuite/gdb.arch/aarch64-dbreg-contents.c:89:11: warning: implicit declaration of function 'fork' [-Wimplicit-function-declaration]
       child = fork ();
    
               ^~~~
    
    --
    
    The following patch fixes those by adding the necessary include files.
    
    With that said, the test doesn't pass at present. I'll have to investigate it
    a bit more.
    
    gdb/testsuite/ChangeLog:
    
    2020-02-28  Luis Machado  <luis.machado@linaro.org>
    
    	* gdb.arch/aarch64-dbreg-contents.c: Include stdlib.h, unistd,
    	asm/ptrace.h and error.h.

Diff:
---
 gdb/testsuite/ChangeLog                         | 5 +++++
 gdb/testsuite/gdb.arch/aarch64-dbreg-contents.c | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 70bee9c..c3f49e0 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2020-02-28  Luis Machado  <luis.machado@linaro.org>
+
+	* gdb.arch/aarch64-dbreg-contents.c: Include stdlib.h, unistd.h,
+	asm/ptrace.h and error.h.
+
 2020-02-28  Tom de Vries  <tdevries@suse.de>
 
 	* gdb.base/c-linkage-name.c (main): Call do_something_other_cu.
diff --git a/gdb/testsuite/gdb.arch/aarch64-dbreg-contents.c b/gdb/testsuite/gdb.arch/aarch64-dbreg-contents.c
index 66ca76f..ca690f6 100644
--- a/gdb/testsuite/gdb.arch/aarch64-dbreg-contents.c
+++ b/gdb/testsuite/gdb.arch/aarch64-dbreg-contents.c
@@ -9,13 +9,17 @@
   freely.  */
 
 #define _GNU_SOURCE 1
+#include <stdlib.h>
+#include <unistd.h>
 #include <sys/ptrace.h>
+#include <asm/ptrace.h>
 #include <assert.h>
 #include <sys/wait.h>
 #include <stddef.h>
 #include <errno.h>
 #include <sys/uio.h>
 #include <elf.h>
+#include <error.h>
 
 static pid_t child;