ppc4xx: Cleanup for partial linking and --gc-sections

This commit adapts 4xx boards for partial linking with --gc-sections.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Tirumala Marri <tmarri@apm.com>
Cc: David Updegraff <dave@cray.com>
Cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
Cc: Dirk Eibach <eibach@gdsys.de>
Cc: Larry Johnson <lrj@acm.org>
Cc: Peter De Schrijver <p2@mind.be>
Cc: Niklaus Giger <niklaus.giger@netstal.com>
Cc: Daniel Poirot <dan.poirot@windriver.com>
Acked-by: Stefan Roese <sr@denx.de>

2 files changed, 13 insertions, 58 deletions

diff --git a/board/amirix/ap1000/Makefile b/board/amirix/ap1000/Makefile
index fdf6145..fe7a6a2 100644
--- a/board/amirix/ap1000/Makefile
+++ b/board/amirix/ap1000/Makefile
@@ -32,7 +32,9 @@ SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
 SOBJS	:= $(addprefix $(obj),$(SOBJS))
 
-$(LIB):	$(OBJS) $(SOBJS)
+all:	$(LIB) $(SOBJS)
+
+$(LIB):	$(OBJS)
 	$(call cmd_link_o_target, $^)
 
 clean:
diff --git a/board/amirix/ap1000/u-boot.lds b/board/amirix/ap1000/u-boot.lds
index bebcded..356d019 100644
--- a/board/amirix/ap1000/u-boot.lds
+++ b/board/amirix/ap1000/u-boot.lds
@@ -22,68 +22,26 @@
  */
 
 OUTPUT_ARCH(powerpc)
-/* Do we need any of these for elf?
-   __DYNAMIC = 0;    */
+
 SECTIONS
 {
   /* Read-only sections, merged into text segment: */
   . = + SIZEOF_HEADERS;
-  .interp : { *(.interp) }
-  .hash          : { *(.hash)		}
-  .dynsym        : { *(.dynsym)		}
-  .dynstr        : { *(.dynstr)		}
-  .rel.text      : { *(.rel.text)		}
-  .rela.text     : { *(.rela.text)	}
-  .rel.data      : { *(.rel.data)		}
-  .rela.data     : { *(.rela.data)	}
-  .rel.rodata    : { *(.rel.rodata)	}
-  .rela.rodata   : { *(.rela.rodata)	}
-  .rel.got       : { *(.rel.got)		}
-  .rela.got      : { *(.rela.got)		}
-  .rel.ctors     : { *(.rel.ctors)	}
-  .rela.ctors    : { *(.rela.ctors)	}
-  .rel.dtors     : { *(.rel.dtors)	}
-  .rela.dtors    : { *(.rela.dtors)	}
-  .rel.bss       : { *(.rel.bss)		}
-  .rela.bss      : { *(.rela.bss)		}
-  .rel.plt       : { *(.rel.plt)		}
-  .rela.plt      : { *(.rela.plt)		}
-  .init          : { *(.init)	}
-  .plt : { *(.plt) }
   .text      :
   {
     /* WARNING - the following is hand-optimized to fit within	*/
     /* the sector layout of our flash chips!	XXX FIXME XXX	*/
 
     arch/powerpc/cpu/ppc4xx/start.o	(.text)
-    board/amirix/ap1000/init.o	(.text)
-    arch/powerpc/cpu/ppc4xx/kgdb.o	(.text)
-    arch/powerpc/cpu/ppc4xx/traps.o	(.text)
-    arch/powerpc/cpu/ppc4xx/interrupts.o	(.text)
-    arch/powerpc/cpu/ppc4xx/4xx_uart.o	(.text)
-    arch/powerpc/cpu/ppc4xx/cpu_init.o	(.text)
-    arch/powerpc/cpu/ppc4xx/speed.o	(.text)
-    common/dlmalloc.o	(.text)
-    lib/crc32.o		(.text)
-    arch/powerpc/lib/extable.o	(.text)
-    lib/zlib.o		(.text)
-
-/*    . = env_offset;*/
-/*    common/env_embedded.o(.text)*/
-
-    *(.text)
-    *(.got1)
+    board/amirix/ap1000/init.o		(.text)
+    *(.text*)
   }
   _etext = .;
   PROVIDE (etext = .);
   .rodata    :
   {
-    *(.eh_frame)
     *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
   }
-  .fini      : { *(.fini)    } =0
-  .ctors     : { *(.ctors)   }
-  .dtors     : { *(.dtors)   }
 
   /* Read-write section, merged into data segment: */
   . = (. + 0x00FF) & 0xFFFFFF00;
@@ -91,23 +49,19 @@ SECTIONS
   PROVIDE (erotext = .);
   .reloc   :
   {
-    *(.got)
+    KEEP(*(.got))
     _GOT2_TABLE_ = .;
-    *(.got2)
+    KEEP(*(.got2))
     _FIXUP_TABLE_ = .;
-    *(.fixup)
+    KEEP(*(.fixup))
   }
   __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
   __fixup_entries = (. - _FIXUP_TABLE_)>>2;
 
   .data    :
   {
-    *(.data)
-    *(.data1)
-    *(.sdata)
-    *(.sdata2)
-    *(.dynamic)
-    CONSTRUCTORS
+    *(.data*)
+    *(.sdata*)
   }
   _edata  =  .;
   PROVIDE (edata = .);
@@ -131,9 +85,8 @@ SECTIONS
   __bss_start = .;
   .bss (NOLOAD)       :
   {
-   *(.sbss) *(.scommon)
-   *(.dynbss)
-   *(.bss)
+   *(.bss*)
+   *(.sbss*)
    *(COMMON)
    . = ALIGN(4);
   }