u-boot.git/arch/mips/cpu, branch v2013.07

Refactor linker-generated arrays

2013-03-12T22:28:40Z

Refactor linker-generated array code so that symbols which were previously linker-generated are now compiler- generated. This causes relocation records of type R_ARM_ABS32 to become R_ARM_RELATIVE, which makes code which uses LGA able to run before relocation as well as after. Note: this affects more than ARM targets, as linker- lists span possibly all target architectures, notably PowerPC. Conflicts: arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds arch/arm/cpu/armv7/omap-common/u-boot-spl.lds board/ait/cam_enc_4xx/u-boot-spl.lds board/davinci/da8xxevm/u-boot-spl-da850evm.lds board/davinci/da8xxevm/u-boot-spl-hawk.lds board/vpac270/u-boot-spl.lds Signed-off-by: Albert ARIBAUD

MIPS: add dynamic relocation support

2013-02-12T21:22:13Z

The code handles relocation entries with the following relocation types only: mips32: R_MIPS_REL32 mips64: R_MIPS_REL+R_MIPS_64 xburst: R_MIPS_REL32 Other relocation entries are skipped without processing. The code must be extended if other relocation types must be supported. Add -pie to LDFLAGS_FINAL to generate the .rel.dyn fixup table, which will be applied to the relocated image before transferring control to it. The CONFIG_NEEDS_MANUAL_RELOC is not needed after the patch, so remove that as well. Signed-off-by: Gabor Juhos Signed-off-by: Daniel Schwierzeck

MIPS: u-boot.lds: add relocation specific sections

2013-02-12T21:22:13Z

This section contain the table needed for dynamic relocation. Also provide symbols for the relocation code to access the table. Discard all sections which are not needed in the final ELF binary and U-Boot image. Section .dynsym cannot be discarded or GNU ld crashes otherwise. This section will be stripped by GNU objcpy in a later patch. Signed-off-by: Gabor Juhos Signed-off-by: Daniel Schwierzeck

MIPS: start.S: use symbol __image_copy_end for U-Boot image relocation

2013-02-12T21:22:13Z

Use the newly introduced symbol __image_copy_end as end address for relocation of U-Boot image. This is needed for dynamic relocation added in later patches. This patch obsoletes the symbols uboot_end and uboot_end_data which are removed. Signed-off-by: Daniel Schwierzeck

MIPS: start.S: optimize BSS initialization

2013-02-12T21:22:13Z

Get the start and end address for clearing BSS from the newly introduced symbols __bss_start and __bss_end. After GOT is relocated, those symbols are already pointing to the correct addresses. Also optimize the loop by moving the address incrementation to the delay slot to avoid the initial sub instruction. Signed-off-by: Daniel Schwierzeck

MIPS: u-boot.lds: introduce symbol __image_copy_end

2013-02-12T21:22:12Z

This symbol is used in later patches as end address for relocation of the U-Boot image into RAM. Signed-off-by: Daniel Schwierzeck

MIPS: u-boot.lds: merge all BSS sections and introduce symbols __bss_[start|end]

2013-02-12T21:22:12Z

These symbols are used in later patches for as addresses for clearing the BSS area in the relocated U-Boot image. Signed-off-by: Daniel Schwierzeck

MIPS: compute num_got_entries from .got section's size

2013-02-12T21:22:12Z

The '__got_start' and '__got_end' symbols are used only in the linker script to compute the value of the 'num_got_entries' symbol. Remove the symbols and use the SIZEOF(.got) command to get the size of the .got section. Signed-off-by: Gabor Juhos Cc: Daniel Schwierzeck

MIPS: start.S: unify and simplify reset vector handling

2013-02-12T21:22:12Z

Adopt reset vector handling from Yamon. Signed-off-by: Daniel Schwierzeck

MIPS: start.S: remove obsolete 64 bit handling in setup_c0_status

2013-02-12T21:22:12Z

Signed-off-by: Daniel Schwierzeck