function/data-sections

index 47a1f9a..4a197e8 100644
@@ -3,6 +3,29 @@
  * Archs are free to supply their own linker scripts.  ld will
  * combine them automatically.
  */
+
+/* .data.foo are generated by gcc itself with -fdata-sections,
+ * whereas double-dot sections (like .data..percpu) are generated
+ * by kernel's magic macros.
+ *
+ * Since this script does not specify what to do with double-dot sections,
+ * ld -r will coalesce all .data..foo input sections into one .data..foo
+ * output section, all .data..bar input sections into one .data..bar
+ * output section and so on. This is exactly what we want.
+ *
+ * Same goes for .text, .bss and .rodata. In case of .rodata, various
+ * .rodata.foo sections are generated by gcc even without -fdata-sections
+ */
+
 SECTIONS {
+
+	/* Coalesce sections produced by gcc -ffunction-sections */
+	.text   0 : AT(0) { *(.text .text.[A-Za-z0-9_$^]*) }
+
+	/* Coalesce sections produced by gcc -fdata-sections */
+	.rodata 0 : AT(0) { *(.rodata .rodata.[A-Za-z0-9_$^]*) }
+	.data   0 : AT(0) { *(.data .data.[A-Za-z0-9_$^]*) }
+	.bss    0 : AT(0) { *(.bss .bss.[A-Za-z0-9_$^]*) }
+
 	/DISCARD/ : { *(.discard) }
 }

index 8b973f3..9949f1a 100644
@@ -114,7 +114,6 @@ SECTIONS
 
   .sbss		: { *(.sbss .sbss.*) }
   .bss		: { *(.bss .bss.*) }
-  .bss..stack	: { *(.bss) }
 
   __bss_stop = .;
   _end = . ;

index 85a0d54..1e23df4 100644
@@ -1,9 +1,9 @@
 SECTIONS {
 	. = SIZEOF_HEADERS;
-	.rodata : { *(.rodata) } :ro
+	.rodata : { *(.rodata) *(.rodata.*) } :ro
 	.note : { *(.note*) }
 	. = 0xa0000;
-	.data : { *(.data) } :dat
+	.data : { *(.data) *(.data.*) } :dat
 	/DISCARD/ : { *(*) }
 }
 PHDRS {

index a91b271..c095a5b 100644
@@ -169,6 +169,7 @@ SECTIONS {
 		. = ALIGN(4);
 		_sbss = . ;
 		*(.bss)
+		*(.bss.*)
 		*(COMMON)
 		. = ALIGN(4) ;
 		_ebss = . ;

index 0864c96..408e5ad 100644
@@ -12,6 +12,7 @@ SECTIONS
   .data ALIGN(0x10) :
   {
     *(.data)
+    *(.data.*)
   }
   _image_start = ADDR(.data);
   _image_size = SIZEOF(.data);

index d64a6bb..56d472c 100644
@@ -112,6 +112,7 @@ SECTIONS
 	}
 	.bss : {
 		*(.bss)
+		*(.bss.*)
 		*(COMMON)
 	}
 	__bss_stop = .;

index 6d59ee7..19ee0cb 100644
@@ -35,7 +35,7 @@ SECTIONS
 	 */
 	. = 0x400;
 
-	.text		: { *(.text) } 			:text	=0x90909090
+	.text		: { *(.text) *(.text.*) }	:text	=0x90909090
 	.note		: { *(.note.*) }		:text	:note
 	.eh_frame_hdr	: { *(.eh_frame_hdr ) }		:text	:eh_frame_hdr
 	.eh_frame	: {

index 060fff8..38f18e8 100644
@@ -42,6 +42,7 @@ SECTIONS
 	.bss :	{
 		__bss_start = .;
 		*(.bss)
+		*(.bss.*)
 		__bss_end = .;
 	}
 

index d0bb522..eb5b2a6 100644
@@ -307,6 +307,7 @@ SECTIONS
 		__bss_start = .;
 		*(.bss..page_aligned)
 		*(.bss)
+		*(.bss.*)
 		. = ALIGN(4);
 		__bss_stop = .;
 	}

index 31c081c..ff5374d 100644
@@ -4,17 +4,17 @@ printk = srm_printk;
 SECTIONS
 {
   . = 0x20000000;
-  .text : { *(.text) }
+  .text : { *(.text) *(.text.*) }
   _etext = .;
   PROVIDE (etext = .);
   .rodata : { *(.rodata) *(.rodata.*) }
-  .data : { *(.data) CONSTRUCTORS }
+  .data : { *(.data) *(.data.*) CONSTRUCTORS }
   .got : { *(.got) }
   .sdata : { *(.sdata) }
   _edata = .;
   PROVIDE (edata = .);
   .sbss : { *(.sbss) *(.scommon) }
-  .bss : { *(.bss) *(COMMON) }
+  .bss : { *(.bss) *(.bss.*) *(COMMON) }
   _end = . ;
   PROVIDE (end = .);
 

index fc54394..14be7ff 100644
@@ -16,6 +16,7 @@ SECTIONS
    _stext = .;
    *(.start)
    *(.text)
+   *(.text.*)
    initrd_size = initrd_end - initrd_start;
    _etext = .;
   }

index e80f459..d6022d9 100644
@@ -13,6 +13,7 @@ SECTIONS
 	{
 		_stext = . ;
 		*(.text)
+		*(.text.*)
 		*(.rodata)
 		*(.rodata.*)
 		_etext = . ;

@@ -20,11 +21,13 @@ SECTIONS
 	.data :
 	{
 		*(.data)
+		*(.data.*)
 		_edata = . ;
 	} > dram
 	.bss :
 	{
 		*(.bss)
+		*(.bss.*)
 		_end = ALIGN( 0x10 ) ;
 	} > dram
 }

index 3c837fe..b5cfeb4 100644
@@ -13,6 +13,7 @@ SECTIONS
 	{
 		_stext = . ;
 		*(.text)
+		*(.text.*)
 		*(.rodata)
 		*(.rodata.*)
 		_etext = . ;

@@ -20,11 +21,13 @@ SECTIONS
 	.data :
 	{
 		*(.data)
+		*(.data.*)
 		_edata = . ;
 	} > dram
 	.bss :
 	{
 		*(.bss)
+		*(.bss.*)
 		_end = ALIGN( 0x10 ) ;
 	} > dram
 }

index 0b52a94..42b03a3 100644
@@ -10,11 +10,13 @@ SECTIONS
 	{
 		stext = . ;
 		*(.text)
+		*(.text.*)
 		etext = . ;
 	} > flash
 	.data :
 	{
 		*(.data)
+		*(.data.*)
 		edata = . ;
 	} > flash
 }

index 8ac646b..440ea40 100644
@@ -17,6 +17,7 @@ SECTIONS
 	{
 		_stext = . ;
 		*(.text)
+		*(.text.*)
 		*(.init.text)
 		*(.rodata)
 		*(.rodata.*)

@@ -25,12 +26,14 @@ SECTIONS
 	.data :
 	{
 		*(.data)
+		*(.data.*)
 		_edata = . ;
 	} > bootblk
 	.bss :
 	{
 		_bss = . ;
 		*(.bss)
+		*(.bss.*)
 		_end = ALIGN( 0x10 ) ;
 	} > intmem
 

index a0a3a0e..6896c9a 100644
@@ -6,12 +6,14 @@ SECTIONS
 	__text = .;
 	       *(.text..startup)
 	       *(.text)
+	       *(.text.*)
         __etext = . ;
         }
 
 	.rodata :
 	{
 		*(.rodata)
+		*(.rodata.*)
 	}
         .data :
 

index a0f6962..f4cfb3f 100644
@@ -4,6 +4,7 @@ SECTIONS
 	_input_len = .;
 	LONG(_input_data_end - _input_data) _input_data = .;
 	*(.data)
+	*(.data.*)
 	_input_data_end = .;
 	}
 }

index 3977f25..56bf12c 100644
@@ -7,13 +7,13 @@ SECTIONS
   . = 0x100000;
 
   _text = .;
-  .text : { *(__ivt_section) *(.text) }
+  .text : { *(__ivt_section) *(.text) *(.text.*) }
   _etext = .;
 
   /* Global data */
   _data = .;
   .rodata : { *(.rodata) *(.rodata.*) }
-  .data    : { *(.data) *(.gnu.linkonce.d*) CONSTRUCTORS }
+  .data    : { *(.data) *(.data.*) *(.gnu.linkonce.d*) CONSTRUCTORS }
   __gp = ALIGN (8) + 0x200000;
   .got           : { *(.got.plt) *(.got) }
   /* We want the small data sections together, so single-instruction offsets

@@ -24,7 +24,7 @@ SECTIONS
 
   __bss_start = .;
   .sbss      : { *(.sbss) *(.scommon) }
-  .bss       : { *(.bss) *(COMMON) }
+  .bss       : { *(.bss) *(.bss.*) *(COMMON) }
   . = ALIGN(64 / 8);
   __bss_stop = .;
   _end = . ;

index dd11963..d51580e 100644
@@ -6,12 +6,12 @@ SECTIONS
   . = CONFIG_MEMORY_START + 0x00400000;
 
   _text = .;
-  .text : { *(.text) } = 0
+  .text : { *(.text) *(.text.*) } = 0
   .rodata : { *(.rodata) *(.rodata.*) }
   _etext = .;
 
   . = ALIGN(32 / 8);
-  .data : { *(.data) }
+  .data : { *(.data) *(.data.*) }
   . = ALIGN(32 / 8);
   _got = .;
   .got  : { *(.got) _egot = .; *(.got.*) }

@@ -19,7 +19,7 @@ SECTIONS
 
   . = ALIGN(32 / 8);
   __bss_start = .;
-  .bss : { *(.bss) *(.sbss) }
+  .bss : { *(.bss) *(.bss.*) *(.sbss) }
   . = ALIGN(32 / 8);
   _ebss = .;
   . = ALIGN(4096);

index 924c799..253eff1 100644
@@ -3,6 +3,7 @@ SECTIONS
   .data : {
 	zimage_data = .;
 	*(.data)
+	*(.data.*)
 	zimage_data_end = .;
 	}
   zimage_len = zimage_data_end - zimage_data;

index a084903..3e3e043 100644
@@ -4,6 +4,7 @@ SECTIONS
 	input_len = .;
 	LONG(input_data_end - input_data) input_data = .;
 	*(.data)
+	*(.data.*)
 	input_data_end = .;
 	}
 }

index 856dc78..504183a 100644
@@ -7,6 +7,7 @@ SECTIONS
   .text      :
   {
     *(.text)
+    *(.text.*)
     *(.fixup)
   }
   _etext = .;

@@ -41,6 +42,7 @@ SECTIONS
   {
    *(.sbss)
    *(.bss)
+   *(.bss.*)
   }
   _end = . ;
 

index 0962d62..2815506 100644
@@ -7,6 +7,7 @@ SECTIONS
   .text      :
   {
     *(.text)
+    *(.text.*)
     *(.fixup)
   }
   _etext = .;

@@ -45,6 +46,7 @@ SECTIONS
   {
    *(.sbss)
    *(.bss)
+   *(.bss.*)
   }
   . = ALIGN(4096);
   _end = . ;

index aaa469c..a29ce62 100644
@@ -21,6 +21,7 @@ SECTIONS
   .text      :
   {
     *(.text)
+    *(.text.*)
     *(.fixup)
   }
   _etext = .;

@@ -44,6 +45,7 @@ SECTIONS
   {
    *(.sbss)
    *(.bss)
+   *(.bss.*)
   }
   . = ALIGN(4096);
   _end = . ;

index 862d748..e7d733f 100644
@@ -4,6 +4,7 @@ SECTIONS
 	input_len = .;
 	LONG(input_data_end - input_data) input_data = .;
 	*(.data)
+	*(.data.*)
 	output_len = . - 4;
 	input_data_end = .;
 	}

index 03c0683..a4af992 100644
@@ -20,7 +20,7 @@ SECTIONS
 	.initdata	: { *(.initdata) }
 	__end_init = .;
 
-	.text		: { *(.text) }
+	.text		: { *(.text) *(.text.*) }
 	.text32		: { *(.text32) }
 
 	. = ALIGN(16);

@@ -46,6 +46,7 @@ SECTIONS
 	{
 		__bss_start = .;
 		*(.bss)
+		*(.bss.*)
 		__bss_end = .;
 	}
 	. = ALIGN(16);

index 4e53b74..368d766 100644
@@ -10,19 +10,21 @@ SECTIONS
 	{
 		__reloc_start = . ;
 		_text_start = . ;
-		*(.literal .text.literal .text)
+		*(.literal .text.literal .text .text.*)
 		_text_end = . ;
 	}
 
 	.rodata ALIGN(0x04):
 	{
 		*(.rodata)
+		*(.rodata.*)
 		*(.rodata1)
 	}
 
 	.data ALIGN(0x04):
 	{
 		*(.data)
+		*(.data.*)
 		*(.data1)
 		*(.sdata)
 		*(.sdata2)

@@ -58,6 +60,7 @@ SECTIONS
 		*(.scommon)
 		*(.dynbss)
 		*(.bss)
+		*(.bss.*)
 		__bss_end = .;
 	}
 	_end = .;

index 774db20..8747b68 100644
@@ -8,19 +8,21 @@ SECTIONS
 	{
 		__reloc_start = . ;
 		_text_start = . ;
-		*(.literal .text.literal .text)
+		*(.literal .text.literal .text .text.*)
 		_text_end = . ;
 	}
 
 	.rodata ALIGN(0x04):
 	{
 		*(.rodata)
+		*(.rodata.*)
 		*(.rodata1)
 	}
 
 	.data ALIGN(0x04):
 	{
 		*(.data)
+		*(.data.*)
 		*(.data1)
 		*(.sdata)
 		*(.sdata2)

@@ -56,6 +58,7 @@ SECTIONS
 		*(.scommon)
 		*(.dynbss)
 		*(.bss)
+		*(.bss.*)
 		__bss_end = .;
 	}
 	_end = .;