[Bug gas/28233] [gas, --gstabs] Generate stabs more similar to gcc

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=28233

--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Tom de Vries from comment #0)
> I've found no similar workaround for the missing SO entry problem, so I
> wrote a patch for this.

Tentative gas patch:
...
diff --git a/gas/read.c b/gas/read.c
index 7bf52f11218..d75815fb99a 100644
--- a/gas/read.c
+++ b/gas/read.c
@@ -248,6 +248,7 @@ static segT get_known_segmented_expression (expressionS *
expP);
 static void pobegin (void);
 static size_t get_non_macro_line_sb (sb *);
 static void generate_file_debug (void);
+static void generate_file_debug_end (void);
 static char *_find_end_of_line (char *, int, int, int);
 ^L
 void
@@ -1363,6 +1364,8 @@ read_a_source_file (const char *name)
     }

  quit:
+  generate_file_debug_end ();
+
   symbol_set_value_now (&dot_symbol);

 #ifdef HANDLE_BUNDLE
@@ -6066,6 +6069,13 @@ generate_file_debug (void)
     stabs_generate_asm_file ();
 }

+static void
+generate_file_debug_end (void)
+{
+  if (debug_type == DEBUG_STABS)
+    stabs_generate_asm_file_end ();
+}
+
 /* Output line number debugging information for the current source line.  */

 void
diff --git a/gas/read.h b/gas/read.h
index eebdc4e7452..651f0701bf0 100644
--- a/gas/read.h
+++ b/gas/read.h
@@ -144,6 +144,7 @@ extern void read_print_statistics (FILE *);
 extern char *read_symbol_name (void);
 extern unsigned sizeof_leb128 (valueT, int);
 extern void stabs_generate_asm_file (void);
+extern void stabs_generate_asm_file_end (void);
 extern void stabs_generate_asm_lineno (void);
 extern void stabs_generate_asm_func (const char *, const char *);
 extern void stabs_generate_asm_endfunc (const char *, const char *);
diff --git a/gas/stabs.c b/gas/stabs.c
index 73d1361423c..946831d9c18 100644
--- a/gas/stabs.c
+++ b/gas/stabs.c
@@ -502,6 +502,13 @@ stabs_generate_asm_file (void)
   generate_asm_file (N_SO, file);
 }

+void
+stabs_generate_asm_file_end (void)
+{
+  subseg_set (text_section, 0);
+  generate_asm_file (N_SO, "");
+}
+
 /* Generate stabs debugging information to denote the source file.
    TYPE is one of N_SO, N_SOL.  */

...

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