ld: Support input section description keyword: REVERSE

  PR 27565
  * ldlex.l: Add REVERSE.
  * ldgram.y: Allow REVERSE to be used wherever a sorting command can be used.
  * ld.h (struct wildcard_spec): Add 'reversed' field.
  * ldlang.h (lang_wild_statement_struct): Add 'filenames_reversed' field.
  * ldlang.c (compare_sections): Add reversed parameter. (wild_sort): Reverse the comparison if requested. (print_wild_statement): Handle the reversed field.
  * ld.texi: Document the new feature.
  * NEWS: Mention the new feature.
  * testsuite/ld-scripts/sort-file-reversed-1.d: New test driver.
  * testsuite/ld-scripts/sort-file-reversed-1.t: New test source.
  * testsuite/ld-scripts/sort-file-reversed-2.t: New test source.
  * testsuite/ld-scripts/sort-file-reversed-2.d: New test driver.
  * testsuite/ld-scripts/sort-sections-reversed-1.d: New test driver.
  * testsuite/ld-scripts/sort-sections-reversed-1.t: New test source.
  * testsuite/ld-scripts/sort-sections-reversed-2.t: New test source.
  * testsuite/ld-scripts/sort-sections-reversed-2.d: New test driver.
  * testsuite/ld-scripts/sort-sections-reversed-3.d: New test driver.
  * testsuite/ld-scripts/sort-sections-reversed-3.t: New test source.

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 49c73eb9f362ad7f3726885236e8cd58e1b7ecde..95f4712453a5ad905070ce2febb7e4f386f3d9aa 100644 (file)
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,27 @@
+2023-11-01  Nick Clifton  <nickc@redhat.com>
+
+       PR 27565
+       * ldlex.l: Add REVERSE.
+       * ldgram.y: Allow REVERSE to be used wherever a sorting command
+       can be used.
+       * ld.h (struct wildcard_spec): Add 'reversed' field.
+       * ldlang.h (lang_wild_statement_struct): Add 'filenames_reversed' field.
+       * ldlang.c (compare_sections): Add reversed parameter.
+       (wild_sort): Reverse the comparison if requested.
+       (print_wild_statement): Handle the reversed field.
+       * ld.texi: Document the new feature.
+       * NEWS: Mention the new feature.
+       * testsuite/ld-scripts/sort-file-reversed-1.d: New test driver.
+       * testsuite/ld-scripts/sort-file-reversed-1.t: New test source.
+       * testsuite/ld-scripts/sort-file-reversed-2.t: New test source.
+       * testsuite/ld-scripts/sort-file-reversed-2.d: New test driver.
+       * testsuite/ld-scripts/sort-sections-reversed-1.d: New test driver.
+       * testsuite/ld-scripts/sort-sections-reversed-1.t: New test source.
+       * testsuite/ld-scripts/sort-sections-reversed-2.t: New test source.
+       * testsuite/ld-scripts/sort-sections-reversed-2.d: New test driver.
+       * testsuite/ld-scripts/sort-sections-reversed-3.d: New test driver.
+       * testsuite/ld-scripts/sort-sections-reversed-3.t: New test source.
+
 2023-10-30  Nick Clifton  <nickc@redhat.com>
 
        * po/ka.po: New Georgian translation.

diff --git a/ld/NEWS b/ld/NEWS
index 4b990c755f4d2b785de5cf5ad5344c0973aad067..e696bba550116d4e2f96af7a696a8389b8d75ffd 100644 (file)
--- a/ld/NEWS
+++ b/ld/NEWS
@@ -12,6 +12,10 @@ Changes in 2.41:
 * The linker command line option --print-map-locals can be used to include
   local symbols in a linker map.  (ELF targets only).
 
+* A new linker script sorting directive has been added: REVERSE.  This reverses
+  the order of the sorting.  It be combined with either SORT_BY_INIT_PRIORITY
+  or SORT_BY_NAME.
+
 * For most ELF based targets, if the --enable-linker-version option is used
   then the version of the linker will be inserted as a string into the .comment
   section.

diff --git a/ld/ld.h b/ld/ld.h
index a0f8a15c7a997c4232c5db0bac6abb7c419474a8..f51add335aa8fac06395d1a7bec82e855d80a712 100644 (file)
--- a/ld/ld.h
+++ b/ld/ld.h
@@ -96,11 +96,14 @@ extern sort_type sort_section;
 
 struct wildcard_spec
 {
-  const char *name;
-  struct name_list *exclude_name_list;
-  struct flag_info *section_flag_list;
-  size_t namelen, prefixlen, suffixlen;
-  sort_type sorted;
+  const char *        name;
+  struct name_list *  exclude_name_list;
+  struct flag_info *  section_flag_list;
+  size_t              namelen;
+  size_t              prefixlen;
+  size_t              suffixlen;
+  sort_type           sorted;
+  bool                reversed;
 };
 
 struct wildcard_list

diff --git a/ld/ld.texi b/ld/ld.texi
index 1f56ded1041be969614b33f7575f34fbbaa0dcbe..7ae01b121d7aa25fb18fbaf9ea44df477cdc250e 100644 (file)
--- a/ld/ld.texi
+++ b/ld/ld.texi
@@ -5263,6 +5263,35 @@ the init_priority.  In @code{.ctors.NNNNN} and @code{.dtors.NNNNN},
 @cindex SORT
 @code{SORT} is an alias for @code{SORT_BY_NAME}.
 
+@cindex REVERSE
+@code{REVERSE} indicates that the sorting should be reversed.  If used
+on its own then @code{REVERSE} implies @code{SORT_BY_NAME}, otherwise
+it reverses the enclosed @code{SORT..} command.  Note - reverse
+sorting of alignment is not currently supported.
+
+Note - the sorting commands only accept a single wildcard pattern.  So
+for example the following will not work:
+@smallexample
+  *(REVERSE(.text* .init*))
+@end smallexample
+To resolve this problem list the patterns individually, like this:
+@smallexample
+  *(REVERSE(.text*))
+  *(REVERSE(.init*))
+@end smallexample
+
+Note - you can put the @code{EXCLUDE_FILE} command inside a sorting
+command, but not the other way around.  So for example:
+@smallexample
+  *(SORT_BY_NAME(EXCLUDE_FILE(foo) .text*))
+@end smallexample
+will work, but:
+@smallexample
+  *(EXCLUDE_FILE(foo) SORT_BY_NAME(.text*))
+@end smallexample
+will not.
+
+
 When there are nested section sorting commands in linker script, there
 can be at most 1 level of nesting for section sorting commands.
 
@@ -5282,6 +5311,15 @@ treated the same as @code{SORT_BY_NAME} (wildcard section pattern).
 @code{SORT_BY_ALIGNMENT} (@code{SORT_BY_ALIGNMENT} (wildcard section pattern))
 is treated the same as @code{SORT_BY_ALIGNMENT} (wildcard section pattern).
 @item
+@code{SORT_BY_NAME} (@code{REVERSE} (wildcard section pattern))
+reverse sorts by name.
+@item
+@code{REVERSE} (@code{SORT_BY_NAME} (wildcard section pattern))
+reverse sorts by name.
+@item
+@code{SORT_BY_INIT_PRIORITY} (@code{REVERSE} (wildcard section pattern))
+reverse sorts by init priority.
+@item
 All other nested section sorting commands are invalid.
 @end enumerate
 

diff --git a/ld/ldgram.y b/ld/ldgram.y
index 2b4b50709829b919153f73d2c6e0df2a175a0e07..7b7ae8a07965561213ab1ed7cfd3db5ae87f8d5b 100644 (file)
--- a/ld/ldgram.y
+++ b/ld/ldgram.y
@@ -102,7 +102,7 @@ static void yyerror (const char *);
 %type <flag_info> sect_flags
 %type <name> memspec_opt memspec_at_opt paren_script_name casesymlist
 %type <cname> wildcard_name
-%type <wildcard> section_name_spec filename_spec wildcard_maybe_exclude
+%type <wildcard> section_name_spec filename_spec wildcard_maybe_exclude wildcard_maybe_reverse
 %token <bigint> INT
 %token <name> NAME LNAME
 %type <integer> length
@@ -132,7 +132,7 @@ static void yyerror (const char *);
 %token SECTIONS PHDRS INSERT_K AFTER BEFORE LINKER_VERSION
 %token DATA_SEGMENT_ALIGN DATA_SEGMENT_RELRO_END DATA_SEGMENT_END
 %token SORT_BY_NAME SORT_BY_ALIGNMENT SORT_NONE
-%token SORT_BY_INIT_PRIORITY
+%token SORT_BY_INIT_PRIORITY REVERSE
 %token '{' '}'
 %token SIZEOF_HEADERS OUTPUT_FORMAT FORCE_COMMON_ALLOCATION OUTPUT_ARCH
 %token INHIBIT_COMMON_ALLOCATION FORCE_GROUP_ALLOCATION
@@ -440,6 +440,7 @@ wildcard_maybe_exclude:
                          $$.sorted = none;
                          $$.exclude_name_list = NULL;
                          $$.section_flag_list = NULL;
+                         $$.reversed = false;
                        }
        |       EXCLUDE_FILE '(' exclude_name_list ')' wildcard_name
                        {
@@ -447,65 +448,95 @@ wildcard_maybe_exclude:
                          $$.sorted = none;
                          $$.exclude_name_list = $3;
                          $$.section_flag_list = NULL;
+                         $$.reversed = false;
                        }
        ;
 
-filename_spec:
+wildcard_maybe_reverse:
                wildcard_maybe_exclude
-       |       SORT_BY_NAME '(' wildcard_maybe_exclude ')'
+       |       REVERSE '(' wildcard_maybe_exclude ')'
                        {
                          $$ = $3;
+                         $$.reversed = true;
                          $$.sorted = by_name;
                        }
-       |       SORT_NONE '(' wildcard_maybe_exclude ')'
+       ;
+
+filename_spec:
+               wildcard_maybe_reverse
+       |       SORT_BY_NAME '(' wildcard_maybe_reverse ')'
+                       {
+                         $$ = $3;
+                         $$.sorted = by_name;
+                       }
+       |       SORT_NONE '(' wildcard_maybe_reverse ')'
                        {
                          $$ = $3;
                          $$.sorted = by_none;
+                         $$.reversed = false;
+                       }
+       |       REVERSE '(' SORT_BY_NAME '(' wildcard_maybe_exclude ')' ')'
+                       {
+                         $$ = $5;
+                         $$.sorted = by_name;
+                         $$.reversed = true;
                        }
        ;
 
 section_name_spec:
-               wildcard_maybe_exclude
-       |       SORT_BY_NAME '(' wildcard_maybe_exclude ')'
+               wildcard_maybe_reverse
+       |       SORT_BY_NAME '(' wildcard_maybe_reverse ')'
                        {
                          $$ = $3;
                          $$.sorted = by_name;
                        }
-       |       SORT_BY_ALIGNMENT '(' wildcard_maybe_exclude ')'
+       |       SORT_BY_ALIGNMENT '(' wildcard_maybe_reverse ')'
                        {
                          $$ = $3;
                          $$.sorted = by_alignment;
                        }
-       |       SORT_NONE '(' wildcard_maybe_exclude ')'
+       |       SORT_NONE '(' wildcard_maybe_reverse ')'
                        {
                          $$ = $3;
                          $$.sorted = by_none;
                        }
-       |       SORT_BY_NAME '(' SORT_BY_ALIGNMENT '(' wildcard_maybe_exclude ')' ')'
+       |       SORT_BY_NAME '(' SORT_BY_ALIGNMENT '(' wildcard_maybe_reverse ')' ')'
                        {
                          $$ = $5;
                          $$.sorted = by_name_alignment;
                        }
-       |       SORT_BY_NAME '(' SORT_BY_NAME '(' wildcard_maybe_exclude ')' ')'
+       |       SORT_BY_NAME '(' SORT_BY_NAME '(' wildcard_maybe_reverse ')' ')'
                        {
                          $$ = $5;
                          $$.sorted = by_name;
                        }
-       |       SORT_BY_ALIGNMENT '(' SORT_BY_NAME '(' wildcard_maybe_exclude ')' ')'
+       |       SORT_BY_ALIGNMENT '(' SORT_BY_NAME '(' wildcard_maybe_reverse ')' ')'
                        {
                          $$ = $5;
                          $$.sorted = by_alignment_name;
                        }
-       |       SORT_BY_ALIGNMENT '(' SORT_BY_ALIGNMENT '(' wildcard_maybe_exclude ')' ')'
+       |       SORT_BY_ALIGNMENT '(' SORT_BY_ALIGNMENT '(' wildcard_maybe_reverse ')' ')'
                        {
                          $$ = $5;
                          $$.sorted = by_alignment;
                        }
-       |       SORT_BY_INIT_PRIORITY '(' wildcard_maybe_exclude ')'
+       |       SORT_BY_INIT_PRIORITY '(' wildcard_maybe_reverse ')'
                        {
                          $$ = $3;
                          $$.sorted = by_init_priority;
                        }
+       |       REVERSE '(' SORT_BY_NAME '(' wildcard_maybe_exclude ')' ')'
+                       {
+                         $$ = $5;
+                         $$.sorted = by_name;
+                         $$.reversed = true;
+                       }
+       |       REVERSE '(' SORT_BY_INIT_PRIORITY '(' wildcard_maybe_exclude ')' ')'
+                       {
+                         $$ = $5;
+                         $$.sorted = by_init_priority;
+                         $$.reversed = true;
+                       }
        ;
 
 sect_flag_list:        NAME

diff --git a/ld/ldlang.c b/ld/ldlang.c
index c20247a27d0d3b109c8197f817df92a695c89caf..566c2b8326ffe56e30048e5e9eb764ffe6ff1b08 100644 (file)
--- a/ld/ldlang.c
+++ b/ld/ldlang.c
@@ -539,7 +539,7 @@ get_init_priority (const asection *sec)
 /* Compare sections ASEC and BSEC according to SORT.  */
 
 static int
-compare_section (sort_type sort, asection *asec, asection *bsec)
+compare_section (sort_type sort, asection *asec, asection *bsec, bool reversed)
 {
   int ret;
   int a_priority, b_priority;
@@ -554,7 +554,10 @@ compare_section (sort_type sort, asection *asec, asection *bsec)
       b_priority = get_init_priority (bsec);
       if (a_priority < 0 || b_priority < 0)
        goto sort_by_name;
-      ret = a_priority - b_priority;
+      if (reversed)
+       ret = b_priority - a_priority;
+      else
+       ret = a_priority - b_priority;
       if (ret)
        break;
       else
@@ -568,11 +571,17 @@ compare_section (sort_type sort, asection *asec, asection *bsec)
 
     case by_name:
     sort_by_name:
-      ret = strcmp (bfd_section_name (asec), bfd_section_name (bsec));
+      if (reversed)
+       ret = strcmp (bfd_section_name (bsec), bfd_section_name (asec));
+      else
+       ret = strcmp (bfd_section_name (asec), bfd_section_name (bsec));
       break;
 
     case by_name_alignment:
-      ret = strcmp (bfd_section_name (asec), bfd_section_name (bsec));
+      if (reversed)
+       ret = strcmp (bfd_section_name (bsec), bfd_section_name (asec));
+      else
+       ret = strcmp (bfd_section_name (asec), bfd_section_name (bsec));
       if (ret)
        break;
       /* Fall through.  */
@@ -647,7 +656,11 @@ wild_sort (lang_wild_statement_type *wild,
          else
            ln = sort_filename (lsec->owner);
 
-         i = filename_cmp (fn, ln);
+         if (wild->filenames_reversed)
+           i = filename_cmp (ln, fn);
+         else
+           i = filename_cmp (fn, ln);
+
          if (i > 0)
            { tree = &((*tree)->right); continue; }
          else if (i < 0)
@@ -660,7 +673,11 @@ wild_sort (lang_wild_statement_type *wild,
              if (la)
                ln = sort_filename (lsec->owner);
 
-             i = filename_cmp (fn, ln);
+             if (wild->filenames_reversed)
+               i = filename_cmp (ln, fn);
+             else
+               i = filename_cmp (fn, ln);
+             
              if (i > 0)
                { tree = &((*tree)->right); continue; }
              else if (i < 0)
@@ -673,7 +690,7 @@ wild_sort (lang_wild_statement_type *wild,
 
       /* Find the correct node to append this section.  */
       if (sec && sec->spec.sorted != none && sec->spec.sorted != by_none
-         && compare_section (sec->spec.sorted, section, (*tree)->section) < 0)
+         && compare_section (sec->spec.sorted, section, (*tree)->section, sec->spec.reversed) < 0)
        tree = &((*tree)->left);
       else
        tree = &((*tree)->right);
@@ -5151,10 +5168,14 @@ print_wild_statement (lang_wild_statement_type *w,
 
   if (w->filenames_sorted)
     minfo ("SORT_BY_NAME(");
+  if (w->filenames_reversed)
+    minfo ("REVERSE(");
   if (w->filename != NULL)
     minfo ("%s", w->filename);
   else
     minfo ("*");
+  if (w->filenames_reversed)
+    minfo (")");
   if (w->filenames_sorted)
     minfo (")");
 
@@ -5199,6 +5220,12 @@ print_wild_statement (lang_wild_statement_type *w,
          break;
        }
 
+      if (sec->spec.reversed)
+       {
+         minfo ("REVERSE(");
+         closing_paren++;
+       }
+
       if (sec->spec.exclude_name_list != NULL)
        {
          name_list *tmp;
@@ -8500,9 +8527,10 @@ lang_add_wild (struct wildcard_spec *filespec,
   if (filespec != NULL)
     {
       new_stmt->filename = filespec->name;
-      new_stmt->filenames_sorted = filespec->sorted == by_name;
+      new_stmt->filenames_sorted = (filespec->sorted == by_name || filespec->reversed);
       new_stmt->section_flag_list = filespec->section_flag_list;
       new_stmt->exclude_name_list = filespec->exclude_name_list;
+      new_stmt->filenames_reversed = filespec->reversed;
     }
   new_stmt->section_list = section_list;
   new_stmt->keep_sections = keep_sections;

diff --git a/ld/ldlang.h b/ld/ldlang.h
index 463cce394e935c564f14e2b4585ae9eb5a8a222b..63749ea5f8c796c1290b7bcc91d86f61a6a44280 100644 (file)
--- a/ld/ldlang.h
+++ b/ld/ldlang.h
@@ -390,18 +390,19 @@ typedef struct lang_section_bst
 
 struct lang_wild_statement_struct
 {
-  lang_statement_header_type header;
-  const char *filename;
-  bool filenames_sorted;
-  bool any_specs_sorted;
-  struct wildcard_list *section_list;
-  bool keep_sections;
-  lang_statement_list_type children;
-  struct name_list *exclude_name_list;
-  lang_statement_list_type matching_sections;
-
-  lang_section_bst_type *tree, **rightmost;
-  struct flag_info *section_flag_list;
+  lang_statement_header_type  header;
+  lang_statement_list_type    children;
+  lang_statement_list_type    matching_sections;
+  lang_section_bst_type *     tree;
+  lang_section_bst_type **    rightmost;
+  struct wildcard_list *      section_list;
+  struct name_list *          exclude_name_list;
+  struct flag_info *          section_flag_list;
+  const char *                filename;
+  bool                        filenames_sorted;
+  bool                        filenames_reversed;
+  bool                        any_specs_sorted;
+  bool                        keep_sections;
 };
 
 typedef struct lang_address_statement_struct

diff --git a/ld/ldlex.l b/ld/ldlex.l
index 94b2ea70acd7a84e9edd1a51a4012cb2a098eb0f..101f5271b94c50347d7a7bd6bf3e95124d842ea3 100644 (file)
--- a/ld/ldlex.l
+++ b/ld/ldlex.l
@@ -322,6 +322,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 <WILD>"SORT"                           { RTOKEN(SORT_BY_NAME); }
 <WILD>"SORT_BY_INIT_PRIORITY"          { RTOKEN(SORT_BY_INIT_PRIORITY); }
 <WILD>"SORT_NONE"                      { RTOKEN(SORT_NONE); }
+<WILD>"REVERSE"                                { RTOKEN(REVERSE); }
 <EXPRESSION>"NOLOAD"                   { RTOKEN(NOLOAD); }
 <EXPRESSION>"READONLY"                 { RTOKEN(READONLY); }
 <EXPRESSION>"DSECT"                    { RTOKEN(DSECT); }

diff --git a/ld/testsuite/ld-scripts/sort-file-reversed-1.d b/ld/testsuite/ld-scripts/sort-file-reversed-1.d
new file mode 100644 (file)
index 0000000..d1d56bd
--- /dev/null
+++ b/ld/testsuite/ld-scripts/sort-file-reversed-1.d
@@ -0,0 +1,18 @@
+#source: sort-file1.s
+#source: sort-file2.s
+#ld: -T sort-file-reversed-1.t --no-warn-rwx-segments
+#nm: -n
+
+# Check that SORT_BY_NAME+REVERSE on filenames works.
+# The text sections should come in reversed sorted order, the data
+# sections in input order.  Note how we specifically pass
+# the object filenames in alphabetical order
+#...
+0[0-9a-f]* t infile2
+#...
+0[0-9a-f]* t infile1
+#...
+0[0-9a-f]* d data1
+#...
+0[0-9a-f]* d data2
+#pass

diff --git a/ld/testsuite/ld-scripts/sort-file-reversed-1.t b/ld/testsuite/ld-scripts/sort-file-reversed-1.t
new file mode 100644 (file)
index 0000000..dd177d3
--- /dev/null
+++ b/ld/testsuite/ld-scripts/sort-file-reversed-1.t
@@ -0,0 +1,6 @@
+SECTIONS
+{
+  .text : { SORT_BY_NAME(REVERSE(*))(.text*) }
+  .data : { *(.data*) }
+  /DISCARD/ : { *(.*) }
+}

diff --git a/ld/testsuite/ld-scripts/sort-file-reversed-2.d b/ld/testsuite/ld-scripts/sort-file-reversed-2.d
new file mode 100644 (file)
index 0000000..3e829f2
--- /dev/null
+++ b/ld/testsuite/ld-scripts/sort-file-reversed-2.d
@@ -0,0 +1,19 @@
+#source: sort-file1.s
+#source: sort-file2.s
+#ld: -T sort-file-reversed-2.t  --no-warn-rwx-segments
+#nm: -n
+
+# Check that REVERSE+SORT_BY_NAME on filenames works.
+# Also check that REVERSE implies SORT_BY_NAME.
+# The text sections should come in reversed sorted order, the data
+# sections in reversed order too.  Note how we specifically pass
+# the object filenames in alphabetical order
+#...
+0[0-9a-f]* t infile2
+#...
+0[0-9a-f]* t infile1
+#...
+0[0-9a-f]* d data2
+#...
+0[0-9a-f]* d data1
+#pass

diff --git a/ld/testsuite/ld-scripts/sort-file-reversed-2.t b/ld/testsuite/ld-scripts/sort-file-reversed-2.t
new file mode 100644 (file)
index 0000000..1379852
--- /dev/null
+++ b/ld/testsuite/ld-scripts/sort-file-reversed-2.t
@@ -0,0 +1,6 @@
+SECTIONS
+{
+  .text : { REVERSE(SORT_BY_NAME(*))(.text*) }
+  .data : { REVERSE(*)(.data*) }
+  /DISCARD/ : { *(.*) }
+}

diff --git a/ld/testsuite/ld-scripts/sort-sections-reversed-1.d b/ld/testsuite/ld-scripts/sort-sections-reversed-1.d
new file mode 100644 (file)
index 0000000..57f88e5
--- /dev/null
+++ b/ld/testsuite/ld-scripts/sort-sections-reversed-1.d
@@ -0,0 +1,13 @@
+#source: sort_b_a.s
+#ld: -T sort-sections-reversed-1.t  --no-warn-rwx-segments
+#nm: -n
+
+#...
+0[0-9a-f]* t text3
+#...
+0[0-9a-f]* t text2
+#...
+0[0-9a-f]* t text1
+#...
+0[0-9a-f]* t text
+#pass

diff --git a/ld/testsuite/ld-scripts/sort-sections-reversed-1.t b/ld/testsuite/ld-scripts/sort-sections-reversed-1.t
new file mode 100644 (file)
index 0000000..cc7f85e
--- /dev/null
+++ b/ld/testsuite/ld-scripts/sort-sections-reversed-1.t
@@ -0,0 +1,5 @@
+SECTIONS
+{
+  .text : { *(SORT_BY_NAME(REVERSE(.text*))) }
+  /DISCARD/ : { *(.*) }
+}

diff --git a/ld/testsuite/ld-scripts/sort-sections-reversed-2.d b/ld/testsuite/ld-scripts/sort-sections-reversed-2.d
new file mode 100644 (file)
index 0000000..1eaa479
--- /dev/null
+++ b/ld/testsuite/ld-scripts/sort-sections-reversed-2.d
@@ -0,0 +1,13 @@
+#source: sort_b_a.s
+#ld: -T sort-sections-reversed-2.t  --no-warn-rwx-segments
+#nm: -n
+
+#...
+0[0-9a-f]* t text3
+#...
+0[0-9a-f]* t text2
+#...
+0[0-9a-f]* t text1
+#...
+0[0-9a-f]* t text
+#pass

diff --git a/ld/testsuite/ld-scripts/sort-sections-reversed-2.t b/ld/testsuite/ld-scripts/sort-sections-reversed-2.t
new file mode 100644 (file)
index 0000000..3fa082e
--- /dev/null
+++ b/ld/testsuite/ld-scripts/sort-sections-reversed-2.t
@@ -0,0 +1,5 @@
+SECTIONS
+{
+  .text : { *(REVERSE(SORT_BY_INIT_PRIORITY(.text*))) }
+  /DISCARD/ : { *(REVERSE(.*)) }
+}

diff --git a/ld/testsuite/ld-scripts/sort-sections-reversed-3.d b/ld/testsuite/ld-scripts/sort-sections-reversed-3.d
new file mode 100644 (file)
index 0000000..e7f244c
--- /dev/null
+++ b/ld/testsuite/ld-scripts/sort-sections-reversed-3.d
@@ -0,0 +1,15 @@
+#source: sort_b_a.s
+#ld: -T sort-sections-reversed-3.t  --no-warn-rwx-segments
+#nm: -n
+
+# Check that REVERSE implies SORT_BY_NAME for sections.
+# Also check that EXCLUDE_FILE() is supported inside REVERSE.
+#...
+0[0-9a-f]* t text3
+#...
+0[0-9a-f]* t text2
+#...
+0[0-9a-f]* t text1
+#...
+0[0-9a-f]* t text
+#pass

diff --git a/ld/testsuite/ld-scripts/sort-sections-reversed-3.t b/ld/testsuite/ld-scripts/sort-sections-reversed-3.t
new file mode 100644 (file)
index 0000000..15414a8
--- /dev/null
+++ b/ld/testsuite/ld-scripts/sort-sections-reversed-3.t
@@ -0,0 +1,5 @@
+SECTIONS
+{
+  .text : { *(REVERSE(EXCLUDE_FILE(foo) .text*)) }
+  /DISCARD/ : { *(.*) }
+}