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commit 31925464a80970e37c06192a0c49f8948a2f5da0
Author: Matthew Wahab <matthew.wahab@arm.com>
Date:   Mon Aug 15 13:09:04 2016 +0100

    [GDB] Fix builds broken by proc-service changes.
    
    GLIBC BZ#20311 introduced a change to install proc_service.h so that gdb
    didn't have to use the version it embeds in gdb_proc_service.h. The
    embedded version is guarded by HAVE_PROC_SERVICE_H and
    gdb_proc_service.h has a number other of includes and definitions, all
    of which are uncondional except for an include for gregset.h. This is
    only included if HAVE_PROC_SERIVCE_H is not defined.
    
    This causes a build failure when cross compiling gdb with the latest
    glibc because type definitions in gregset are used independently of
    HAVE_PROC_SERIVCE_H. In particular, they are used in gdb_proc_service.h
    when PRFPREGSET_T_BROKEN is set.
    
    The error messages on the failure are
    ----
    binutils-gdb/gdb/gdb_proc_service.h:173:9: error: ‘gdb_fpregset_t’ does
    not name a type; did you mean ‘elf_fpregset_t’?
     typedef gdb_fpregset_t gdb_prfpregset_t;
             ^~~~~~~~~~~~~~
             elf_fpregset_t
    
    binutils-gdb/gdb/gdb_proc_service.h:173:9: error: ‘gdb_fpregset_t’ does
    not name a type; did you mean ‘elf_fpregset_t’?
     typedef gdb_fpregset_t gdb_prfpregset_t;
             ^~~~~~~~~~~~~~
             elf_fpregset_t
    
    binutils-gdb/gdb/proc-service.c:218:15: error: ‘gdb_prfpregset_t’ does
    not name a type; did you mean ‘gdb_fpregset_t’?
             const gdb_prfpregset_t *fpregset)
                   ^~~~~~~~~~~~~~~~
                   gdb_fpregset_t
    ----
    
    This patch moves the include for gregset.h to before the code guarded by
    HAVE_PROC_SERIVCE_H, so that it is always included. This is enough to
    fix the build.
    
    2016-08-15  Matthew Wahab  <matthew.wahab@arm.com>
    
            PR gdb/20457
            * gdb_proc_service.h: Add an include of gregset.h
            [!HAVE_PROC_SERVICE_H]: Remove the include of gregset.h.

---
 gdb/gdb_proc_service.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/gdb/gdb_proc_service.h
+++ b/gdb/gdb_proc_service.h
@@ -21,6 +21,8 @@
 
 #include <sys/types.h>
 
+#include "gregset.h"
+
 #ifdef HAVE_PROC_SERVICE_H
 
 /* glibc's proc_service.h doesn't wrap itself with extern "C".  Need
@@ -60,8 +62,6 @@
 #include <sys/procfs.h>
 #endif
 
-#include "gregset.h"
-
 EXTERN_C_PUSH
 
 /* Functions in this interface return one of these status codes.  */