Recent episode with pointer authentication showed again that for platforms without __attribute__((naked)), we are better off writing the early header in assembly. With some slight linker magic, we can move the header code into assembly without board code ENTRY_POINT definitions having to change. Ahmad Fatoum (8): ARM64: cpu: select HAVE_PBL_MULTI_IMAGES globally ARM64: asm: define ENTRY_FUNCTION in terms of ENTRY_FUNCTION_WITHSTACK pbl: have linker define __pbl_board_entry alias asm-generic: memory_layout: define __keep_symbolref() ARM64: asm: rewrite ENTRY_FUNCTION(_WITHSTACK) fully in assembly ARM64: asm: drop __barebox_arm_head ARM: asm: cleanup 32-bit entry points Documentation: devel: porting: bring it up-to-date Documentation/devel/porting.rst | 26 +++++++---- Makefile | 3 +- arch/arm/cpu/Kconfig | 1 + arch/arm/cpu/Makefile | 2 + arch/arm/cpu/head_64.S | 36 +++++++++++++++ arch/arm/include/asm/barebox-arm-head.h | 17 +------ arch/arm/include/asm/barebox-arm.h | 45 ++++++++----------- arch/arm/lib/pbl.lds.S | 9 ++++ .../include/mach/barebox-arm-head.h | 17 ------- images/Makefile | 1 + include/asm-generic/memory_layout.h | 7 +++ 11 files changed, 95 insertions(+), 69 deletions(-) create mode 100644 arch/arm/cpu/head_64.S -- 2.30.2
