R_ARM_ABS32 relocation records cause symbol references to be zero before relocation, and become correct only after relocation. On the other hand, R_ARM_RELATIVE records make references correct before as well as after relocation.
This patch series aims at removing all R_ARM_ABS32 relocations from ARM targets. the main contributor of R_ARM_ABS32 relocations is the support code for linker-lists, aka Linker-Generated Arrays. This is due to the fact that LGA start and end symbols, used for ranging these arrays, are linker- generated symbols, which always relocate as R_ARM_ABS32 even though they are supposed *not* to be absolute. V1 of this patch series fixed LGAs so that start or end symbols are actually compiler-generated, and thus their references are relocated using R_ARM_RELATIVE; V2 also fixes crt0 so that BSS start and end references do not produce R_ARM_ABS32 relocations either. With V2, none of the targets built with MAKEALL -a arm produces any R_ARM_ABS32 relocation. This series has been build-tested with ARM (295 targets clean) and powerpc (634 targets clean) Changes in v2: - fixed missing .sram memory mapping in OMAP lds - removed useless linker script sections in SPL lds files - made BSS start and end compiler-generated - moved SPL linker script changes to their own commit - added KEEP() to all linker files - removed spurious change to common/command.c - changed empty type from struct {} to char[0] - dropped patch to removed board/micronas/vct/u-boot.lds - removed all references to u-boot.lst Albert ARIBAUD (4): arm: omap: map u_boot_lists section to .sram Remove linker lists (LGAs) from SPL linker scripts arm: make __bss_start and __bss_end__ compiler-generated Refactor linker-generated arrays .gitignore | 1 - Makefile | 13 +- arch/arm/cpu/arm920t/ep93xx/u-boot.lds | 2 +- arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds | 6 - arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds | 6 - arch/arm/cpu/armv7/am33xx/u-boot-spl.lds | 67 ++++++ arch/arm/cpu/armv7/omap-common/u-boot-spl.lds | 4 - arch/arm/cpu/ixp/u-boot.lds | 14 +- arch/arm/cpu/u-boot-spl.lds | 93 ++++++++ arch/arm/cpu/u-boot.lds | 14 +- arch/arm/lib/Makefile | 1 + arch/arm/lib/bss.c | 39 ++++ arch/avr32/cpu/u-boot.lds | 2 +- arch/blackfin/cpu/u-boot.lds | 2 +- arch/microblaze/cpu/u-boot.lds | 2 +- arch/mips/cpu/u-boot.lds | 2 +- arch/nds32/cpu/n1213/u-boot.lds | 2 +- arch/nios2/cpu/u-boot.lds | 2 +- arch/powerpc/cpu/74xx_7xx/u-boot.lds | 2 +- arch/powerpc/cpu/mpc512x/u-boot.lds | 2 +- arch/powerpc/cpu/mpc5xx/u-boot.lds | 2 +- arch/powerpc/cpu/mpc5xxx/u-boot-customlayout.lds | 2 +- arch/powerpc/cpu/mpc5xxx/u-boot.lds | 2 +- arch/powerpc/cpu/mpc8220/u-boot.lds | 2 +- arch/powerpc/cpu/mpc824x/u-boot.lds | 2 +- arch/powerpc/cpu/mpc8260/u-boot.lds | 2 +- arch/powerpc/cpu/mpc83xx/u-boot.lds | 2 +- arch/powerpc/cpu/mpc85xx/u-boot-nand.lds | 2 +- arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds | 2 +- arch/powerpc/cpu/mpc85xx/u-boot.lds | 2 +- arch/powerpc/cpu/mpc86xx/u-boot.lds | 2 +- arch/powerpc/cpu/ppc4xx/u-boot.lds | 2 +- arch/sandbox/cpu/u-boot.lds | 2 +- arch/sh/cpu/sh2/u-boot.lds | 2 +- arch/sh/cpu/sh3/u-boot.lds | 2 +- arch/sh/cpu/sh4/u-boot.lds | 2 +- arch/x86/cpu/u-boot.lds | 2 +- board/BuS/eb_cpu5282/u-boot.lds | 2 +- board/LEOX/elpt860/u-boot.lds | 2 +- board/RPXClassic/u-boot.lds | 2 +- board/RPXClassic/u-boot.lds.debug | 2 +- board/RPXlite/u-boot.lds | 2 +- board/RPXlite/u-boot.lds.debug | 2 +- board/RPXlite_dw/u-boot.lds | 2 +- board/RPXlite_dw/u-boot.lds.debug | 2 +- board/RRvision/u-boot.lds | 2 +- board/actux1/u-boot.lds | 24 ++- board/actux2/u-boot.lds | 24 ++- board/actux3/u-boot.lds | 18 +- board/adder/u-boot.lds | 2 +- board/ait/cam_enc_4xx/u-boot-spl.lds | 4 - board/altera/nios2-generic/u-boot.lds | 2 +- board/amcc/acadia/u-boot-nand.lds | 2 +- board/amcc/bamboo/u-boot-nand.lds | 2 +- board/amcc/canyonlands/u-boot-nand.lds | 2 +- board/amcc/kilauea/u-boot-nand.lds | 2 +- board/amcc/sequoia/u-boot-nand.lds | 2 +- board/amcc/sequoia/u-boot-ram.lds | 2 +- board/astro/mcf5373l/u-boot.lds | 2 +- board/cobra5272/u-boot.lds | 2 +- board/cogent/u-boot.lds | 2 +- board/cogent/u-boot.lds.debug | 2 +- board/cray/L1/u-boot.lds.debug | 2 +- board/dave/PPChameleonEVB/u-boot.lds | 2 +- board/davinci/da8xxevm/u-boot-spl-da850evm.lds | 5 - board/davinci/da8xxevm/u-boot-spl-hawk.lds | 5 - board/dvlhost/u-boot.lds | 18 +- board/eltec/mhpc/u-boot.lds | 2 +- board/eltec/mhpc/u-boot.lds.debug | 2 +- board/emk/top860/u-boot.lds | 2 +- board/ep88x/u-boot.lds | 2 +- board/esd/dasa_sim/u-boot.lds | 2 +- board/esd/pmc440/u-boot-nand.lds | 2 +- board/esd/tasreg/u-boot.lds | 2 +- board/esteem192e/u-boot.lds | 2 +- board/evb64260/u-boot.lds | 2 +- board/fads/u-boot.lds | 2 +- board/flagadm/u-boot.lds | 2 +- board/flagadm/u-boot.lds.debug | 2 +- board/freescale/m5208evbe/u-boot.lds | 2 +- board/freescale/m52277evb/u-boot.lds | 2 +- board/freescale/m5235evb/u-boot.lds | 2 +- board/freescale/m5249evb/u-boot.lds | 2 +- board/freescale/m5253demo/u-boot.lds | 2 +- board/freescale/m5253evbe/u-boot.lds | 2 +- board/freescale/m5271evb/u-boot.lds | 2 +- board/freescale/m5272c3/u-boot.lds | 2 +- board/freescale/m5275evb/u-boot.lds | 2 +- board/freescale/m5282evb/u-boot.lds | 2 +- board/freescale/m53017evb/u-boot.lds | 2 +- board/freescale/m5329evb/u-boot.lds | 2 +- board/freescale/m5373evb/u-boot.lds | 2 +- board/freescale/m54418twr/u-boot.lds | 2 +- board/freescale/m54451evb/u-boot.lds | 2 +- board/freescale/m54455evb/u-boot.lds | 2 +- board/freescale/m547xevb/u-boot.lds | 2 +- board/freescale/m548xevb/u-boot.lds | 2 +- board/freescale/mx31ads/u-boot.lds | 16 +- board/gaisler/gr_cpci_ax2000/u-boot.lds | 2 +- board/gaisler/gr_ep2s60/u-boot.lds | 2 +- board/gaisler/gr_xc3s_1500/u-boot.lds | 2 +- board/gaisler/grsim/u-boot.lds | 2 +- board/gaisler/grsim_leon2/u-boot.lds | 2 +- board/gen860t/u-boot-flashenv.lds | 2 +- board/gen860t/u-boot.lds | 2 +- board/genietv/u-boot.lds | 2 +- board/genietv/u-boot.lds.debug | 2 +- board/hermes/u-boot.lds | 2 +- board/hermes/u-boot.lds.debug | 2 +- board/hymod/u-boot.lds | 2 +- board/hymod/u-boot.lds.debug | 2 +- board/icu862/u-boot.lds | 2 +- board/icu862/u-boot.lds.debug | 2 +- board/idmr/u-boot.lds | 2 +- board/ip860/u-boot.lds | 2 +- board/ip860/u-boot.lds.debug | 2 +- board/ivm/u-boot.lds | 2 +- board/ivm/u-boot.lds.debug | 2 +- board/korat/u-boot-F7FC.lds | 2 +- board/kup/kup4k/u-boot.lds | 2 +- board/kup/kup4k/u-boot.lds.debug | 2 +- board/kup/kup4x/u-boot.lds | 2 +- board/kup/kup4x/u-boot.lds.debug | 2 +- board/lwmon/u-boot.lds | 2 +- board/lwmon/u-boot.lds.debug | 2 +- board/manroland/uc100/u-boot.lds | 2 +- board/matrix_vision/mvsmr/u-boot.lds | 2 +- board/mbx8xx/u-boot.lds | 2 +- board/mbx8xx/u-boot.lds.debug | 2 +- board/mousse/u-boot.lds | 2 +- board/mpl/pip405/u-boot.lds.debug | 2 +- board/mvblue/u-boot.lds | 2 +- board/netphone/u-boot.lds | 2 +- board/netphone/u-boot.lds.debug | 2 +- board/netta/u-boot.lds | 2 +- board/netta/u-boot.lds.debug | 2 +- board/netta2/u-boot.lds | 2 +- board/netta2/u-boot.lds.debug | 2 +- board/netvia/u-boot.lds | 2 +- board/netvia/u-boot.lds.debug | 2 +- board/nx823/u-boot.lds | 2 +- board/nx823/u-boot.lds.debug | 2 +- board/openrisc/openrisc-generic/u-boot.lds | 2 +- board/quantum/u-boot.lds | 2 +- board/r360mpi/u-boot.lds | 2 +- board/rbc823/u-boot.lds | 2 +- board/renesas/sh7752evb/u-boot.lds | 2 +- board/renesas/sh7757lcr/u-boot.lds | 2 +- board/rsdproto/u-boot.lds | 2 +- board/samsung/smdk5250/smdk5250-uboot-spl.lds | 2 +- board/samsung/smdk6400/u-boot-nand.lds | 2 +- board/sandburst/karef/u-boot.lds.debug | 2 +- board/sandburst/metrobox/u-boot.lds.debug | 2 +- board/sandpoint/u-boot.lds | 2 +- board/sixnet/u-boot.lds | 2 +- board/snmc/qs850/u-boot.lds | 2 +- board/snmc/qs860t/u-boot.lds | 2 +- board/spc1920/u-boot.lds | 2 +- board/spd8xx/u-boot.lds | 2 +- board/spd8xx/u-boot.lds.debug | 2 +- board/stx/stxxtc/u-boot.lds | 2 +- board/stx/stxxtc/u-boot.lds.debug | 2 +- board/svm_sc8xx/u-boot.lds | 2 +- board/tqc/tqm8xx/u-boot.lds | 2 +- board/v37/u-boot.lds | 2 +- board/vpac270/u-boot-spl.lds | 4 - board/w7o/u-boot.lds.debug | 2 +- board/xes/xpedite1000/u-boot.lds.debug | 2 +- common/cmd_help.c | 2 +- config.mk | 2 - doc/README.commands | 18 +- helper.mk | 64 ------ include/command.h | 2 +- include/configs/am335x_evm.h | 2 +- include/configs/pcm051.h | 2 +- include/env_callback.h | 2 +- include/linker_lists.h | 252 +++++++++++++++++----- nand_spl/board/freescale/mpc8536ds/Makefile | 7 +- nand_spl/board/freescale/mpc8569mds/Makefile | 7 +- nand_spl/board/freescale/mpc8572ds/Makefile | 7 +- nand_spl/board/freescale/mx31pdk/Makefile | 7 +- nand_spl/board/freescale/mx31pdk/u-boot.lds | 2 +- nand_spl/board/freescale/p1010rdb/Makefile | 7 +- nand_spl/board/freescale/p1023rds/Makefile | 7 +- nand_spl/board/freescale/p1_p2_rdb/Makefile | 7 +- nand_spl/board/karo/tx25/Makefile | 7 +- nand_spl/board/karo/tx25/u-boot.lds | 2 +- nand_spl/board/samsung/smdk6400/u-boot.lds | 2 +- spl/.gitignore | 1 - spl/Makefile | 8 +- 190 files changed, 665 insertions(+), 424 deletions(-) create mode 100644 arch/arm/cpu/armv7/am33xx/u-boot-spl.lds create mode 100644 arch/arm/cpu/u-boot-spl.lds create mode 100644 arch/arm/lib/bss.c delete mode 100644 helper.mk -- 1.7.10.4 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot