[U-Boot] [PATCH] 512x: Cleanup for partial linking and --gc-sections

[Wolfgang Denk]

Signed-off-by: Wolfgang Denk <wd at denx.de>
Cc: Anatolij Gustschin <agust at denx.de>
Cc: Timur Tabi <timur at freescale.com>
---

Hello Anatolij & Timur,

I'm not happy about the CONFIG_FSL_DIU_FB hacking I had to do in
Makefile and arch/powerpc/cpu/mpc512x/Makefile to make the fsl_diu_fb
driver usable for boards where VENDOR is not set or != 'freescale'.

Can we not move the fsl_diu_fb driver to a place with better global
visibility, like drivers/video/ ?


 Makefile                            |    5 +++-
 arch/powerpc/cpu/mpc512x/Makefile   |    1 -
 arch/powerpc/cpu/mpc512x/u-boot.lds |   51 ++++++----------------------------
 board/freescale/common/Makefile     |    4 +-
 4 files changed, 15 insertions(+), 46 deletions(-)

diff --git a/Makefile b/Makefile
index b4aae89..28028dc 100644
--- a/Makefile
+++ b/Makefile
@@ -185,6 +185,9 @@ LIBS += lib/lzma/liblzma.o
 LIBS += lib/lzo/liblzo.o
 LIBS += $(shell if [ -f board/$(VENDOR)/common/Makefile ]; then echo \
 	"board/$(VENDOR)/common/lib$(VENDOR).o"; fi)
+ifdef CONFIG_FSL_DIU_FB
+LIBS += board/freescale/common/libfreescale.o
+endif
 LIBS += $(CPUDIR)/lib$(CPU).o
 ifdef SOC
 LIBS += $(CPUDIR)/$(SOC)/lib$(SOC).o
@@ -260,7 +263,7 @@ ifeq ($(SOC),s5pc2xx)
 LIBS += $(CPUDIR)/s5p-common/libs5p-common.o
 endif
 
-LIBS := $(addprefix $(obj),$(LIBS))
+LIBS := $(addprefix $(obj),$(sort $(LIBS)))
 .PHONY : $(LIBS) $(TIMESTAMP_FILE) $(VERSION_FILE)
 
 LIBBOARD = board/$(BOARDDIR)/lib$(BOARD).o
diff --git a/arch/powerpc/cpu/mpc512x/Makefile b/arch/powerpc/cpu/mpc512x/Makefile
index cb1263a..4a4bc0d 100644
--- a/arch/powerpc/cpu/mpc512x/Makefile
+++ b/arch/powerpc/cpu/mpc512x/Makefile
@@ -37,7 +37,6 @@ COBJS-y += iopin.o
 COBJS-y += serial.o
 COBJS-y += speed.o
 COBJS-$(CONFIG_FSL_DIU_FB) += diu.o
-COBJS-$(CONFIG_FSL_DIU_FB) += ../../../../board/freescale/common/fsl_diu_fb.o
 COBJS-$(CONFIG_CMD_IDE) += ide.o
 COBJS-$(CONFIG_IIM) += iim.o
 COBJS-$(CONFIG_PCI) += pci.o
diff --git a/arch/powerpc/cpu/mpc512x/u-boot.lds b/arch/powerpc/cpu/mpc512x/u-boot.lds
index c716799..6b292a1 100644
--- a/arch/powerpc/cpu/mpc512x/u-boot.lds
+++ b/arch/powerpc/cpu/mpc512x/u-boot.lds
@@ -23,42 +23,13 @@
 OUTPUT_ARCH(powerpc)
 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      :
   {
-    arch/powerpc/cpu/mpc512x/start.o	(.text)
-    *(.text)
-    *(.got1)
+    arch/powerpc/cpu/mpc512x/start.o	(.text*)
+    *(.text*)
     . = ALIGN(16);
-    *(.eh_frame)
     *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
   }
-  .fini      : { *(.fini)    } =0
-  .ctors     : { *(.ctors)   }
-  .dtors     : { *(.dtors)   }
 
   /* Read-write section, merged into data segment: */
   . = (. + 0x0FFF) & 0xFFFFF000;
@@ -66,10 +37,11 @@ SECTIONS
   PROVIDE (erotext = .);
   .reloc   :
   {
-    *(.got)
+    KEEP(*(.got))
     _GOT2_TABLE_ = .;
-    *(.got2)
+    KEEP(*(.got2))
     _FIXUP_TABLE_ = .;
+    KEEP(*(.fixup))
     *(.fixup)
   }
   __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2;
@@ -77,12 +49,8 @@ SECTIONS
 
   .data    :
   {
-    *(.data)
-    *(.data1)
-    *(.sdata)
-    *(.sdata2)
-    *(.dynamic)
-    CONSTRUCTORS
+    *(.data*)
+    *(.sdata*)
   }
   _edata  =  .;
   PROVIDE (edata = .);
@@ -108,9 +76,8 @@ SECTIONS
   __bss_start = .;
   .bss (NOLOAD)       :
   {
-   *(.sbss) *(.scommon)
-   *(.dynbss)
-   *(.bss)
+   *(.bss*)
+   *(.sbss*)
    *(COMMON)
    . = ALIGN(4);
   }
diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile
index 703a347..905dd7a 100644
--- a/board/freescale/common/Makefile
+++ b/board/freescale/common/Makefile
@@ -24,10 +24,10 @@
 include $(TOPDIR)/config.mk
 
 ifneq ($(OBJTREE),$(SRCTREE))
-$(shell mkdir -p $(obj)board/$(VENDOR)/common)
+$(shell mkdir -p $(obj)board/freescale/common)
 endif
 
-LIB	= $(obj)lib$(VENDOR).o
+LIB	= $(obj)libfreescale.o
 
 COBJS-$(CONFIG_FSL_CADMUS)	+= cadmus.o
 COBJS-$(CONFIG_FSL_VIA)		+= cds_via.o
-- 
1.7.3.2