[gcc(refs/users/marxin/heads/casm-state-v3)] dwarf2out: port partially

[gcc(refs/users/marxin/heads/casm-state-v3)] dwarf2out: port partially

[Martin Liska]

https://gcc.gnu.org/g:0f737e7414da8cf9cc544ab463192f1baa68bc9b

commit 0f737e7414da8cf9cc544ab463192f1baa68bc9b
Author: Martin Liska <mliska@suse.cz>
Date:   Tue Sep 14 13:28:55 2021 +0200

    dwarf2out: port partially

Diff:
---
 gcc/dwarf2out.c | 53 ++++++++++++++++++++++++++++++++---------------------
 1 file changed, 32 insertions(+), 21 deletions(-)

diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index 1d0b09bdaa5..d9c4bdde46a 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -4205,27 +4205,6 @@ new_addr_loc_descr (rtx addr, enum dtprel_bool dtprel)
 #define SKELETON_COMP_DIE_ABBREV 1
 #define SKELETON_TYPE_DIE_ABBREV 2
 
-/* Definitions of defaults for formats and names of various special
-   (artificial) labels which may be generated within this file (when the -g
-   options is used and DWARF2_DEBUGGING_INFO is in effect.
-   If necessary, these may be overridden from within the tm.h file, but
-   typically, overriding these defaults is unnecessary.  */
-
-static char text_end_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char text_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char cold_text_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char cold_end_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char abbrev_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char debug_info_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char debug_skeleton_info_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char debug_skeleton_abbrev_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char debug_line_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char debug_addr_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char debug_skeleton_line_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char macinfo_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char loc_section_label[MAX_ARTIFICIAL_LABEL_BYTES];
-static char ranges_section_label[2 * MAX_ARTIFICIAL_LABEL_BYTES];
-static char ranges_base_label[2 * MAX_ARTIFICIAL_LABEL_BYTES];
 
 #ifndef TEXT_END_LABEL
 #define TEXT_END_LABEL		"Letext"
@@ -4246,6 +4225,36 @@ static char ranges_base_label[2 * MAX_ARTIFICIAL_LABEL_BYTES];
 #define LINE_CODE_LABEL		"LM"
 #endif
 
+struct dwarf_out_state
+{
+  /* Definitions of defaults for formats and names of various special
+     (artificial) labels which may be generated within this file (when the -g
+     options is used and DWARF2_DEBUGGING_INFO is in effect.
+     If necessary, these may be overridden from within the tm.h file, but
+     typically, overriding these defaults is unnecessary.  */
+
+  struct
+  {
+    char text_end[MAX_ARTIFICIAL_LABEL_BYTES];
+    char text_section[MAX_ARTIFICIAL_LABEL_BYTES];
+    char cold_text_section[MAX_ARTIFICIAL_LABEL_BYTES];
+    char cold_end[MAX_ARTIFICIAL_LABEL_BYTES];
+    char abbrev_section[MAX_ARTIFICIAL_LABEL_BYTES];
+    char debug_info_section[MAX_ARTIFICIAL_LABEL_BYTES];
+    char debug_skeleton_info_section[MAX_ARTIFICIAL_LABEL_BYTES];
+    char debug_skeleton_abbrev_section[MAX_ARTIFICIAL_LABEL_BYTES];
+    char debug_line_section[MAX_ARTIFICIAL_LABEL_BYTES];
+    char debug_addr_section[MAX_ARTIFICIAL_LABEL_BYTES];
+    char debug_skeleton_line_section[MAX_ARTIFICIAL_LABEL_BYTES];
+    char macinfo_section[MAX_ARTIFICIAL_LABEL_BYTES];
+    char loc_section[MAX_ARTIFICIAL_LABEL_BYTES];
+    char ranges_section[2 * MAX_ARTIFICIAL_LABEL_BYTES];
+    char ranges_base[2 * MAX_ARTIFICIAL_LABEL_BYTES];
+  } labels;
+};
+
+static dwarf_out_state *dwarf_state = NULL;
+
 \f
 /* Return the root of the DIE's built for the current compilation unit.  */
 static dw_die_ref
@@ -29318,6 +29327,8 @@ init_sections_and_labels (bool early_lto_debug)
 static void
 dwarf2out_init (const char *filename ATTRIBUTE_UNUSED)
 {
+  dwarf_state = new dwarf_out_state ();
+
   /* Allocate the file_table.  */
   file_table = hash_table<dwarf_file_hasher>::create_ggc (50);