[binutils-gdb] Simplify setting of reading_partial_symbols

[Tom Tromey <tromey@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=7693576838f4fe66b2a2380425b5ad950c671b34

commit 7693576838f4fe66b2a2380425b5ad950c671b34
Author: Tom Tromey <tom@tromey.com>
Date:   Mon Feb 24 15:50:57 2020 -0700

    Simplify setting of reading_partial_symbols
    
    This simplifies the setting and clearing of reading_partial_symbols,
    by using scoped_restore in the function that reads partial symbols.
    
    gdb/ChangeLog
    2020-02-24  Tom Tromey  <tom@tromey.com>
    
    	* dwarf2read.c (dwarf2_build_psymtabs_hard): Use
    	make_scoped_restore.
    	(dwarf2_psymtab::read_symtab): Don't clear
    	reading_partial_symbols.

Diff:
---
 gdb/ChangeLog     | 7 +++++++
 gdb/dwarf2/read.c | 6 +++---
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 43ae8e8..044a192 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,10 @@
+2020-02-24  Tom Tromey  <tom@tromey.com>
+
+	* dwarf2read.c (dwarf2_build_psymtabs_hard): Use
+	make_scoped_restore.
+	(dwarf2_psymtab::read_symtab): Don't clear
+	reading_partial_symbols.
+
 2020-02-24  Tom de Vries  <tdevries@suse.de>
 
 	PR gdb/25592
diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
index 46d510e..701d19e 100644
--- a/gdb/dwarf2/read.c
+++ b/gdb/dwarf2/read.c
@@ -7718,7 +7718,9 @@ dwarf2_build_psymtabs_hard (struct dwarf2_per_objfile *dwarf2_per_objfile)
 			  objfile_name (objfile));
     }
 
-  dwarf2_per_objfile->reading_partial_symbols = 1;
+  scoped_restore restore_reading_psyms
+    = make_scoped_restore (&dwarf2_per_objfile->reading_partial_symbols,
+			   true);
 
   dwarf2_per_objfile->info.read (objfile);
 
@@ -8692,8 +8694,6 @@ dwarf2_psymtab::read_symtab (struct objfile *objfile)
 	= dpo_backlink->has_section_at_zero;
     }
 
-  dwarf2_per_objfile->reading_partial_symbols = 0;
-
   expand_psymtab (objfile);
 
   process_cu_includes (dwarf2_per_objfile);