Add SORT_NONE and don't sort sort .init/.fini sections

ld/

	PR ld/14156
	* NEWS: Mention SORT_NONE.

	* ld.h (sort_type): Add by_none.

	* ld.texinfo: Document SORT_NONE.

	* ldgram.y: Handle SORT_NONE.

	* ldlang.c (update_wild_statements): Handle by_none.  Don't
	sort .init/.fini sections.

	* ldlex.l: Add SORT_NONE.

ld/testsuite/

	PR ld/14156
	* ld-elf/fini0.s: New file.
	* ld-elf/fini1.s: Likewise.
	* ld-elf/fini2.s: Likewise.
	* ld-elf/fini3.s: Likewise.
	* ld-elf/finin.s: Likewise.
	* ld-elf/foo0.s: Likewise.
	* ld-elf/foo1.s: Likewise.
	* ld-elf/foo2.s: Likewise.
	* ld-elf/foo3.s: Likewise.
	* ld-elf/foon.s: Likewise.
	* ld-elf/init0.s: Likewise.
	* ld-elf/init1.s: Likewise.
	* ld-elf/init2.s: Likewise.
	* ld-elf/init3.s: Likewise.
	* ld-elf/initn.s: Likewise.
	* ld-elf/pr14156a.d: Likewise.
	* ld-elf/pr14156b.d: Likewise.
	* ld-elf/pr14156c.d: Likewise.
	* ld-elf/pr14156c.t: Likewise.

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 2107b2c..7327db5 100644 (file)
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,19 @@
+2012-07-10  H.J. Lu  <hongjiu.lu@intel.com>
+
+       PR ld/14156
+       * NEWS: Mention SORT_NONE.
+
+       * ld.h (sort_type): Add by_none.
+
+       * ld.texinfo: Document SORT_NONE.
+
+       * ldgram.y: Handle SORT_NONE.
+
+       * ldlang.c (update_wild_statements): Handle by_none.  Don't
+       sort .init/.fini sections.
+
+       * ldlex.l: Add SORT_NONE.
+
 2012-07-02  H.J. Lu  <hongjiu.lu@intel.com>
 
        * ld.texinfo: Replace __end_SECNAME with __stop_SECNAME.

diff --git a/ld/NEWS b/ld/NEWS
index 8701c5c..06f1f77 100644 (file)
--- a/ld/NEWS
+++ b/ld/NEWS
@@ -1,5 +1,7 @@
 -*- text -*-
 
+* Added SORT_NONE to the linker script language to disable section sorting.
+
 * Add a linker-provided symbol when producing ELF output, '__ehdr_start'
   to point to the ELF file header (and nearby program headers) in the
   program's memory image.

diff --git a/ld/ld.h b/ld/ld.h
index f5e031b..b8273a4 100644 (file)
--- a/ld/ld.h
+++ b/ld/ld.h
@@ -87,7 +87,7 @@ typedef enum {sort_none, sort_ascending, sort_descending} sort_order;
 
 typedef enum {
   none, by_name, by_alignment, by_name_alignment, by_alignment_name,
-  by_init_priority
+  by_none, by_init_priority
 } sort_type;
 
 extern sort_type sort_section;

diff --git a/ld/ld.texinfo b/ld/ld.texinfo
index 732fed6..d0a5d90 100644 (file)
--- a/ld/ld.texinfo
+++ b/ld/ld.texinfo
@@ -4038,6 +4038,10 @@ treated as nested sorting command.
 If the section sorting command in linker script is nested, the
 command line option will be ignored.
 
+@cindex SORT_NONE
+@code{SORT_NONE} disables section sorting by ignoring the command line
+section sorting option.
+
 If you ever get confused about where input sections are going, use the
 @samp{-M} linker option to generate a map file.  The map file shows
 precisely how input sections are mapped to output sections.

diff --git a/ld/ldgram.y b/ld/ldgram.y
index 923ac0f..6e00118 100644 (file)
--- a/ld/ldgram.y
+++ b/ld/ldgram.y
@@ -129,7 +129,7 @@ static int error_index;
 %token <token> ALIGN_K BLOCK BIND QUAD SQUAD LONG SHORT BYTE
 %token SECTIONS PHDRS INSERT_K AFTER BEFORE
 %token DATA_SEGMENT_ALIGN DATA_SEGMENT_RELRO_END DATA_SEGMENT_END
-%token SORT_BY_NAME SORT_BY_ALIGNMENT
+%token SORT_BY_NAME SORT_BY_ALIGNMENT SORT_NONE
 %token SORT_BY_INIT_PRIORITY
 %token '{' '}'
 %token SIZEOF_HEADERS OUTPUT_FORMAT FORCE_COMMON_ALLOCATION OUTPUT_ARCH
@@ -467,6 +467,13 @@ wildcard_spec:
                          $$.exclude_name_list = NULL;
                          $$.section_flag_list = NULL;
                        }
+       |       SORT_NONE '(' wildcard_name ')'
+                       {
+                         $$.name = $3;
+                         $$.sorted = by_none;
+                         $$.exclude_name_list = NULL;
+                         $$.section_flag_list = NULL;
+                       }
        |       SORT_BY_NAME '(' SORT_BY_ALIGNMENT '(' wildcard_name ')' ')'
                        {
                          $$.name = $5;

diff --git a/ld/ldlang.c b/ld/ldlang.c
index e94d261..317e445 100644 (file)
--- a/ld/ldlang.c
+++ b/ld/ldlang.c
@@ -3510,6 +3510,8 @@ update_wild_statements (lang_statement_union_type *s)
                      if (sort_section == by_name)
                        sec->spec.sorted = by_alignment_name;
                      break;
+                   case by_none:
+                     sec->spec.sorted = none;
                    default:
                      break;
                    }
@@ -3521,8 +3523,11 @@ update_wild_statements (lang_statement_union_type *s)
              break;
 
            case lang_output_section_statement_enum:
-             update_wild_statements
-               (s->output_section_statement.children.head);
+             /* Don't sort .init/.fini sections.  */
+             if (strcmp (s->output_section_statement.name, ".init") != 0
+                 && strcmp (s->output_section_statement.name, ".fini") != 0)
+               update_wild_statements
+                 (s->output_section_statement.children.head);
              break;
 
            case lang_group_statement_enum:

diff --git a/ld/ldlex.l b/ld/ldlex.l
index 7da611f..c24d1ab 100644 (file)
--- a/ld/ldlex.l
+++ b/ld/ldlex.l
@@ -302,6 +302,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 <BOTH,SCRIPT>"SORT_BY_ALIGNMENT"       { RTOKEN(SORT_BY_ALIGNMENT); }
 <BOTH,SCRIPT>"SORT"                    { RTOKEN(SORT_BY_NAME); }
 <BOTH,SCRIPT>"SORT_BY_INIT_PRIORITY"   { RTOKEN(SORT_BY_INIT_PRIORITY); }
+<BOTH,SCRIPT>"SORT_NONE"               { RTOKEN(SORT_NONE); }
 <EXPRESSION,BOTH,SCRIPT>"NOLOAD"       { RTOKEN(NOLOAD);}
 <EXPRESSION,BOTH,SCRIPT>"DSECT"                { RTOKEN(DSECT);}
 <EXPRESSION,BOTH,SCRIPT>"COPY"         { RTOKEN(COPY);}

diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index f04cf04..74b2913 100644 (file)
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@@ -1,3 +1,26 @@
+2012-07-10  H.J. Lu  <hongjiu.lu@intel.com>
+
+       PR ld/14156
+       * ld-elf/fini0.s: New file.
+       * ld-elf/fini1.s: Likewise.
+       * ld-elf/fini2.s: Likewise.
+       * ld-elf/fini3.s: Likewise.
+       * ld-elf/finin.s: Likewise.
+       * ld-elf/foo0.s: Likewise.
+       * ld-elf/foo1.s: Likewise.
+       * ld-elf/foo2.s: Likewise.
+       * ld-elf/foo3.s: Likewise.
+       * ld-elf/foon.s: Likewise.
+       * ld-elf/init0.s: Likewise.
+       * ld-elf/init1.s: Likewise.
+       * ld-elf/init2.s: Likewise.
+       * ld-elf/init3.s: Likewise.
+       * ld-elf/initn.s: Likewise.
+       * ld-elf/pr14156a.d: Likewise.
+       * ld-elf/pr14156b.d: Likewise.
+       * ld-elf/pr14156c.d: Likewise.
+       * ld-elf/pr14156c.t: Likewise.
+
 2012-07-09  H.J. Lu  <hongjiu.lu@intel.com>
 
        PR ld/14323

diff --git a/ld/testsuite/ld-elf/fini0.s b/ld/testsuite/ld-elf/fini0.s
new file mode 100644 (file)
index 0000000..f2ccfb7
--- /dev/null
+++ b/ld/testsuite/ld-elf/fini0.s
@@ -0,0 +1,16 @@
+       .text
+       .global start   /* Used by SH targets.  */
+start:
+       .global _start
+_start:
+       .global __start
+__start:
+       .global main    /* Used by HPPA targets.  */
+main:
+       .dc.a 0
+
+       .section .fini
+       .p2align 2
+.globl foo
+       .type   foo,%function
+foo:

diff --git a/ld/testsuite/ld-elf/fini1.s b/ld/testsuite/ld-elf/fini1.s
new file mode 100644 (file)
index 0000000..b65d18d
--- /dev/null
+++ b/ld/testsuite/ld-elf/fini1.s
@@ -0,0 +1,6 @@
+       .section .fini
+       .p2align 2
+       .type   foo1,%function
+foo1:
+       .dc.a   0x0
+       .size   foo1,.-foo1

diff --git a/ld/testsuite/ld-elf/fini2.s b/ld/testsuite/ld-elf/fini2.s
new file mode 100644 (file)
index 0000000..b8d7457
--- /dev/null
+++ b/ld/testsuite/ld-elf/fini2.s
@@ -0,0 +1,6 @@
+       .section .fini
+       .p2align 6
+       .type   foo2,%function
+foo2:
+       .dc.a   0x0
+       .size   foo2,.-foo2

diff --git a/ld/testsuite/ld-elf/fini3.s b/ld/testsuite/ld-elf/fini3.s
new file mode 100644 (file)
index 0000000..7f797c5
--- /dev/null
+++ b/ld/testsuite/ld-elf/fini3.s
@@ -0,0 +1,6 @@
+       .section .fini
+       .p2align 4
+       .type   foo3,%function
+foo3:
+       .dc.a   0x0
+       .size   foo3,.-foo3

diff --git a/ld/testsuite/ld-elf/finin.s b/ld/testsuite/ld-elf/finin.s
new file mode 100644 (file)
index 0000000..9085080
--- /dev/null
+++ b/ld/testsuite/ld-elf/finin.s
@@ -0,0 +1,6 @@
+       .section .fini
+       .p2align 8
+       .type   last,%function
+last:
+       .dc.a   0x0
+       .size   last,.-last

diff --git a/ld/testsuite/ld-elf/foo0.s b/ld/testsuite/ld-elf/foo0.s
new file mode 100644 (file)
index 0000000..d6fc9c3
--- /dev/null
+++ b/ld/testsuite/ld-elf/foo0.s
@@ -0,0 +1,16 @@
+       .text
+       .global start   /* Used by SH targets.  */
+start:
+       .global _start
+_start:
+       .global __start
+__start:
+       .global main    /* Used by HPPA targets.  */
+main:
+       .dc.a 0
+
+       .section .foo,"ax",@progbits
+       .p2align 2
+.globl foo
+       .type   foo,%function
+foo:

diff --git a/ld/testsuite/ld-elf/foo1.s b/ld/testsuite/ld-elf/foo1.s
new file mode 100644 (file)
index 0000000..4a6d4f4
--- /dev/null
+++ b/ld/testsuite/ld-elf/foo1.s
@@ -0,0 +1,6 @@
+       .section .foo,"ax",@progbits
+       .p2align 2
+       .type   foo1,%function
+foo1:
+       .dc.a   0x0
+       .size   foo1,.-foo1

diff --git a/ld/testsuite/ld-elf/foo2.s b/ld/testsuite/ld-elf/foo2.s
new file mode 100644 (file)
index 0000000..f95a91b
--- /dev/null
+++ b/ld/testsuite/ld-elf/foo2.s
@@ -0,0 +1,6 @@
+       .section .foo,"ax",@progbits
+       .p2align 6
+       .type   foo2,%function
+foo2:
+       .dc.a   0x0
+       .size   foo2,.-foo2

diff --git a/ld/testsuite/ld-elf/foo3.s b/ld/testsuite/ld-elf/foo3.s
new file mode 100644 (file)
index 0000000..03a32a9
--- /dev/null
+++ b/ld/testsuite/ld-elf/foo3.s
@@ -0,0 +1,6 @@
+       .section .foo,"ax",@progbits
+       .p2align 4
+       .type   foo3,%function
+foo3:
+       .dc.a   0x0
+       .size   foo3,.-foo3

diff --git a/ld/testsuite/ld-elf/foon.s b/ld/testsuite/ld-elf/foon.s
new file mode 100644 (file)
index 0000000..3a41ec2
--- /dev/null
+++ b/ld/testsuite/ld-elf/foon.s
@@ -0,0 +1,6 @@
+       .section .foo,"ax",@progbits
+       .p2align 8
+       .type   last,%function
+last:
+       .dc.a   0x0
+       .size   last,.-last

diff --git a/ld/testsuite/ld-elf/init0.s b/ld/testsuite/ld-elf/init0.s
new file mode 100644 (file)
index 0000000..3c8cf8c
--- /dev/null
+++ b/ld/testsuite/ld-elf/init0.s
@@ -0,0 +1,16 @@
+       .text
+       .global start   /* Used by SH targets.  */
+start:
+       .global _start
+_start:
+       .global __start
+__start:
+       .global main    /* Used by HPPA targets.  */
+main:
+       .dc.a 0
+
+       .section .init
+       .p2align 2
+.globl foo
+       .type   foo,%function
+foo:

diff --git a/ld/testsuite/ld-elf/init1.s b/ld/testsuite/ld-elf/init1.s
new file mode 100644 (file)
index 0000000..5d24ec2
--- /dev/null
+++ b/ld/testsuite/ld-elf/init1.s
@@ -0,0 +1,6 @@
+       .section .init
+       .p2align 2
+       .type   foo1,%function
+foo1:
+       .dc.a   0x0
+       .size   foo1,.-foo1

diff --git a/ld/testsuite/ld-elf/init2.s b/ld/testsuite/ld-elf/init2.s
new file mode 100644 (file)
index 0000000..2c5c353
--- /dev/null
+++ b/ld/testsuite/ld-elf/init2.s
@@ -0,0 +1,6 @@
+       .section .init
+       .p2align 6
+       .type   foo2,%function
+foo2:
+       .dc.a   0x0
+       .size   foo2,.-foo2

diff --git a/ld/testsuite/ld-elf/init3.s b/ld/testsuite/ld-elf/init3.s
new file mode 100644 (file)
index 0000000..d6639ce
--- /dev/null
+++ b/ld/testsuite/ld-elf/init3.s
@@ -0,0 +1,6 @@
+       .section .init
+       .p2align 4
+       .type   foo3,%function
+foo3:
+       .dc.a   0x0
+       .size   foo3,.-foo3

diff --git a/ld/testsuite/ld-elf/initn.s b/ld/testsuite/ld-elf/initn.s
new file mode 100644 (file)
index 0000000..8931e52
--- /dev/null
+++ b/ld/testsuite/ld-elf/initn.s
@@ -0,0 +1,6 @@
+       .section .init
+       .p2align 8
+       .type   last,%function
+last:
+       .dc.a   0x0
+       .size   last,.-last

diff --git a/ld/testsuite/ld-elf/pr14156a.d b/ld/testsuite/ld-elf/pr14156a.d
new file mode 100644 (file)
index 0000000..6476857
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr14156a.d
@@ -0,0 +1,15 @@
+#source: init0.s
+#source: init1.s
+#source: init2.s
+#source: init3.s
+#source: initn.s
+#ld: --sort-section=alignment
+#nm: -n
+
+#...
+[0-9a-f]+ T foo
+[0-9a-f]+ t foo1
+[0-9a-f]+ t foo2
+[0-9a-f]+ t foo3
+[0-9a-f]+ t last
+#pass

diff --git a/ld/testsuite/ld-elf/pr14156b.d b/ld/testsuite/ld-elf/pr14156b.d
new file mode 100644 (file)
index 0000000..ae9fa05
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr14156b.d
@@ -0,0 +1,15 @@
+#source: fini0.s
+#source: fini1.s
+#source: fini2.s
+#source: fini3.s
+#source: finin.s
+#ld: --sort-section=alignment
+#nm: -n
+
+#...
+[0-9a-f]+ T foo
+[0-9a-f]+ t foo1
+[0-9a-f]+ t foo2
+[0-9a-f]+ t foo3
+[0-9a-f]+ t last
+#pass

diff --git a/ld/testsuite/ld-elf/pr14156c.d b/ld/testsuite/ld-elf/pr14156c.d
new file mode 100644 (file)
index 0000000..90ca401
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr14156c.d
@@ -0,0 +1,15 @@
+#source: foo0.s
+#source: foo1.s
+#source: foo2.s
+#source: foo3.s
+#source: foon.s
+#ld: --sort-section=alignment -T pr14156c.t
+#nm: -n
+
+#...
+[0-9a-f]+ T foo
+[0-9a-f]+ t foo1
+[0-9a-f]+ t foo2
+[0-9a-f]+ t foo3
+[0-9a-f]+ t last
+#pass

diff --git a/ld/testsuite/ld-elf/pr14156c.t b/ld/testsuite/ld-elf/pr14156c.t
new file mode 100644 (file)
index 0000000..97ad77d
--- /dev/null
+++ b/ld/testsuite/ld-elf/pr14156c.t
@@ -0,0 +1,4 @@
+SECTIONS {
+  .foo : { *(SORT_NONE(.foo)) }
+  /DISCARD/ : { *(.*) }
+}