Commit 6c0bf27d authored by Jason Jin's avatar Jason Jin Committed by jason
Browse files

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



Introduce the --gc-sections for ColdFire platform and clean up the
corresponding lds file.
Signed-off-by: default avatarTsiChung Liew <tsicliew@gmail.com>
Signed-off-by: default avatarJason Jin <Jason.jin@freescale.com>
parent 45263ec4
......@@ -28,3 +28,5 @@ CONFIG_STANDALONE_LOAD_ADDR ?= 0x20000 -L $(clibdir)
PLATFORM_CPPFLAGS += -DCONFIG_M68K -D__M68K__
PLATFORM_LDFLAGS += -n
PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
LDFLAGS_FINAL += --gc-sections
......@@ -22,61 +22,25 @@
*/
OUTPUT_ARCH(m68k)
/* 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/m68k/cpu/mcf52x2/start.o (.text)
arch/m68k/cpu/mcf52x2/libmcf52x2.o (.text)
arch/m68k/lib/libm68k.o (.text)
common/dlmalloc.o (.text)
arch/m68k/cpu/mcf52x2/start.o (.text*)
. = DEFINED(env_offset) ? env_offset : .;
common/env_embedded.o (.text)
common/env_embedded.o (.text*)
*(.text)
*(.fixup)
*(.got1)
*(.text*)
}
_etext = .;
PROVIDE (etext = .);
.rodata :
{
*(.rodata)
*(.rodata1)
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
}
.fini : { *(.fini) } =0
.ctors : { *(.ctors) }
.dtors : { *(.dtors) }
/* Read-write section, merged into data segment: */
. = (. + 0x00FF) & 0xFFFFFF00;
......@@ -86,24 +50,20 @@ SECTIONS
.reloc :
{
__got_start = .;
*(.got)
KEEP(*(.got))
__got_end = .;
_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 = .);
......@@ -113,7 +73,6 @@ SECTIONS
.u_boot_cmd : { *(.u_boot_cmd) }
__u_boot_cmd_end = .;
. = .;
__start___ex_table = .;
__ex_table : { *(__ex_table) }
......@@ -130,9 +89,8 @@ SECTIONS
.bss (NOLOAD) :
{
_sbss = .;
*(.sbss) *(.scommon)
*(.dynbss)
*(.bss)
*(.sbss*)
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .;
......
......@@ -22,63 +22,27 @@
*/
OUTPUT_ARCH(m68k)
/* 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/m68k/cpu/mcf5227x/start.o (.text)
arch/m68k/cpu/mcf5227x/libmcf5227x.o (.text)
arch/m68k/lib/libm68k.o (.text)
lib/libgeneric.o (.text)
common/cmd_mem.o (.text)
common/main.o (.text)
arch/m68k/cpu/mcf5227x/start.o (.text*)
arch/m68k/cpu/mcf5227x/libmcf5227x.o (.text*)
arch/m68k/lib/libm68k.o (.text*)
. = DEFINED(env_offset) ? env_offset : .;
common/env_embedded.o (.text)
common/env_embedded.o (.text*)
*(.text)
*(.fixup)
*(.got1)
*(.text*)
}
_etext = .;
PROVIDE (etext = .);
.rodata :
{
*(.rodata)
*(.rodata1)
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
}
.fini : { *(.fini) } =0
.ctors : { *(.ctors) }
.dtors : { *(.dtors) }
/* Read-write section, merged into data segment: */
. = (. + 0x00FF) & 0xFFFFFF00;
......@@ -88,24 +52,20 @@ SECTIONS
.reloc :
{
__got_start = .;
*(.got)
KEEP(*(.got))
__got_end = .;
_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 = .);
......@@ -115,7 +75,6 @@ SECTIONS
.u_boot_cmd : { *(.u_boot_cmd) }
__u_boot_cmd_end = .;
. = .;
__start___ex_table = .;
__ex_table : { *(__ex_table) }
......@@ -129,12 +88,11 @@ SECTIONS
__init_end = .;
__bss_start = .;
.bss :
.bss (NOLOAD) :
{
_sbss = .;
*(.sbss) *(.scommon)
*(.dynbss)
*(.bss)
*(.sbss*)
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .;
......
......@@ -22,52 +22,18 @@
*/
OUTPUT_ARCH(m68k)
/* 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/m68k/cpu/mcf52x2/start.o (.text)
arch/m68k/lib/traps.o (.text)
arch/m68k/cpu/mcf52x2/interrupts.o (.text)
common/dlmalloc.o (.text)
lib/zlib.o (.text)
arch/m68k/cpu/mcf52x2/start.o (.text*)
. = DEFINED(env_offset) ? env_offset : .;
common/env_embedded.o (.text)
common/env_embedded.o (.text*)
*(.text)
*(.fixup)
*(.got1)
*(.text*)
}
_etext = .;
PROVIDE (etext = .);
......@@ -75,9 +41,6 @@ SECTIONS
{
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
}
.fini : { *(.fini) } =0
.ctors : { *(.ctors) }
.dtors : { *(.dtors) }
/* Read-write section, merged into data segment: */
. = (. + 0x00FF) & 0xFFFFFF00;
......@@ -87,24 +50,20 @@ SECTIONS
.reloc :
{
__got_start = .;
*(.got)
KEEP(*(.got))
__got_end = .;
_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 = .);
......@@ -114,7 +73,6 @@ SECTIONS
.u_boot_cmd : { *(.u_boot_cmd) }
__u_boot_cmd_end = .;
. = .;
__start___ex_table = .;
__ex_table : { *(__ex_table) }
......@@ -131,9 +89,8 @@ SECTIONS
.bss :
{
_sbss = .;
*(.sbss) *(.scommon)
*(.dynbss)
*(.bss)
*(.sbss*)
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .;
......
......@@ -22,51 +22,20 @@
*/
OUTPUT_ARCH(m68k)
/* 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/m68k/cpu/mcf532x/start.o (.text)
arch/m68k/cpu/mcf532x/libmcf532x.o (.text)
arch/m68k/lib/libm68k.o (.text)
common/dlmalloc.o (.text)
lib/zlib.o (.text)
arch/m68k/cpu/mcf532x/start.o (.text*)
arch/m68k/cpu/mcf532x/libmcf532x.o (.text*)
arch/m68k/lib/libm68k.o (.text*)
. = DEFINED(env_offset) ? env_offset : .;
common/env_embedded.o (.text)
common/env_embedded.o (.text*)
*(.text)
*(.fixup)
*(.got1)
*(.text*)
}
_etext = .;
PROVIDE (etext = .);
......@@ -74,9 +43,6 @@ SECTIONS
{
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
}
.fini : { *(.fini) } =0
.ctors : { *(.ctors) }
.dtors : { *(.dtors) }
/* Read-write section, merged into data segment: */
. = (. + 0x00FF) & 0xFFFFFF00;
......@@ -86,24 +52,20 @@ SECTIONS
.reloc :
{
__got_start = .;
*(.got)
KEEP(*(.got))
__got_end = .;
_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 = .);
......@@ -113,7 +75,6 @@ SECTIONS
.u_boot_cmd : { *(.u_boot_cmd) }
__u_boot_cmd_end = .;
. = .;
__start___ex_table = .;
__ex_table : { *(__ex_table) }
......@@ -130,9 +91,8 @@ SECTIONS
.bss (NOLOAD) :
{
_sbss = .;
*(.sbss) *(.scommon)
*(.dynbss)
*(.bss)
*(.sbss*)
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .;
......
......@@ -22,51 +22,18 @@
*/
OUTPUT_ARCH(m68k)
/* 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/m68k/cpu/mcf532x/start.o (.text)
arch/m68k/lib/traps.o (.text)
arch/m68k/lib/interrupts.o (.text)
common/dlmalloc.o (.text)
lib/zlib.o (.text)
arch/m68k/cpu/mcf532x/start.o (.text*)
. = DEFINED(env_offset) ? env_offset : .;
common/env_embedded.o (.text)
common/env_embedded.o (.text*)
*(.text)
*(.fixup)
*(.got1)
*(.text*)
}
_etext = .;
PROVIDE (etext = .);
......@@ -74,9 +41,6 @@ SECTIONS
{
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
}
.fini : { *(.fini) } =0
.ctors : { *(.ctors) }
.dtors : { *(.dtors) }
/* Read-write section, merged into data segment: */
. = (. + 0x00FF) & 0xFFFFFF00;
......@@ -86,24 +50,20 @@ SECTIONS
.reloc :
{
__got_start = .;
*(.got)
KEEP(*(.got))
__got_end = .;
_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 = .);
......@@ -113,7 +73,6 @@ SECTIONS
.u_boot_cmd : { *(.u_boot_cmd) }
__u_boot_cmd_end = .;
. = .;
__start___ex_table = .;
__ex_table : { *(__ex_table) }
......@@ -130,9 +89,8 @@ SECTIONS
.bss (NOLOAD) :
{
_sbss = .;
*(.sbss) *(.scommon)
*(.dynbss)
*(.bss)
*(.sbss*)
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .;
......
......@@ -22,51 +22,18 @@
*/
OUTPUT_ARCH(m68k)
/* 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/m68k/cpu/mcf532x/start.o (.text)
arch/m68k/lib/traps.o (.text)
arch/m68k/lib/interrupts.o (.text)
common/dlmalloc.o (.text)
lib/zlib.o (.text)
arch/m68k/cpu/mcf532x/start.o (.text*)
. = DEFINED(env_offset) ? env_offset : .;
common/env_embedded.o (.text)
common/env_embedded.o (.text*)
*(.text)
*(.fixup)
*(.got1)
*(.text*)
}
_etext = .;
PROVIDE (etext = .);
......@@ -74,9 +41,6 @@ SECTIONS
{
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
}
.fini : { *(.fini) } =0
.ctors : { *(.ctors) }
.dtors : { *(.dtors) }