Andre Przywara 29c579a249 arm: semihosting: replace inline assembly with assembly file ... So far we used inline assembly to inject the actual instruction that triggers the semihosting service. While this sounds elegant, as it's really only about one instruction, it has some serious downsides: - We need some barriers in place to force the compiler to issue writes to a data structure before issuing the trap instruction. - We need to convince the compiler to actually fill the structures that we use pointers to. - We need a memory clobber to avoid the compiler caching the data in those structures, when semihosting writes data back. - We need register arguments to make sure the function ID and the pointer land in the right registers. This is all doable, but fragile and somewhat cumbersome. Since we now have a separate function in an extra file anyway, we can do away with all the magic and just write that in an actual assembly file. This is much more readable and robust. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Sean Anderson <sean.anderson@seco.com>		2023-03-06 17:06:17 -05:00
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ashldi3.S	SPDX: Convert all of our single license tags to Linux Kernel style	2018-05-07 09:34:12 -04:00
ashrdi3.S	SPDX: Convert all of our single license tags to Linux Kernel style	2018-05-07 09:34:12 -04:00
asm-offsets.c	arm: Remove unused mx27 code	2022-12-05 16:07:13 -05:00
asmdefs.h	arm64: arch/arm/lib: Add optimized memset/memcpy/memmove functions	2021-09-24 07:48:06 -04:00
bdinfo.c	global: Move remaining CONFIG_SYS_* to CFG_SYS_*	2022-12-05 16:06:08 -05:00
bootm-fdt.c	common: Drop asm/global_data.h from common header	2021-02-02 15:33:42 -05:00
bootm.c	Correct SPL uses of LMB	2023-02-10 07:41:39 -05:00
cache-cp15.c	arch: cache: cp15: Add mmu_set_region_dcache_behaviour() when SYS_DCACHE_OFF is enable	2021-07-09 11:36:12 -04:00
cache-pl310.c	global: Move remaining CONFIG_SYS_* to CFG_SYS_*	2022-12-05 16:06:08 -05:00
cache.c	arm64: Initialize TLB memory if CMO_BY_VA_ONLY	2023-03-06 17:03:55 -05:00
ccn504.S	WS cleanup: remove SPACE(s) followed by TAB	2021-09-30 09:08:16 -04:00
cmd_boot.c	command: Remove the cmd_tbl_t typedef	2020-05-18 18:36:55 -04:00
crt0.S	arm32: Fix relocation of env_addr if POSITION_INDEPENDENT=y	2022-11-21 09:23:00 -05:00
crt0_64.S	Migrate CUSTOM_SYS_INIT_SP_ADDR to Kconfig using system-constants.h	2022-06-06 12:09:19 -04:00
crt0_aarch64_efi.S	efi_loader: fix building aarch64 EFI binaries	2023-01-04 13:17:42 +01:00
crt0_arm_efi.S	efi_loader: fix SectionAlignment, FileAlignment	2022-01-15 10:57:22 +01:00
debug.S	arm: Drop CONFIG_MMU	2023-02-07 14:33:48 -05:00
div0.c	common: Move hang() to the same header as panic()	2020-01-17 17:53:40 -05:00
div64.S	WS cleanup: remove SPACE(s) followed by TAB	2021-09-30 09:08:16 -04:00
eabi_compat.c	SPDX: Convert all of our single license tags to Linux Kernel style	2018-05-07 09:34:12 -04:00
elf_aarch64_efi.lds	efi_loader: add .rela sections to .text on arm64	2023-01-13 09:09:07 +01:00
elf_arm_efi.lds	efi_loader: fix SectionAlignment, FileAlignment	2022-01-15 10:57:22 +01:00
gic-v3-its.c	Revert "arch: arm: use dt and UCLASS_SYSCON to get gic lpi details"	2021-10-31 08:46:29 -04:00
gic_64.S	arm: gic_v2: Skip gic_init_secure when cpu is not in el3	2022-05-23 09:33:10 -04:00
image.c	common: Drop asm/global_data.h from common header	2021-02-02 15:33:42 -05:00
interrupts.c	reset: Remove addr parameter from reset_cpu()	2021-03-02 14:03:02 -05:00
interrupts_64.c	arm64: Catch non-emulated semihosting calls	2022-04-01 16:56:53 -04:00
interrupts_m.c	reset: Remove addr parameter from reset_cpu()	2021-03-02 14:03:02 -05:00
lib1funcs.S	arm: lib1funcs.S: Update compatibility with Linux comment slightly	2023-01-20 12:27:06 -05:00
lshrdi3.S	SPDX: Convert all of our single license tags to Linux Kernel style	2018-05-07 09:34:12 -04:00
Makefile	Add in the ability to load and boot an uncompressed kernel image during the Falcon Mode boot sequence.	2022-09-14 15:23:03 -04:00
memcpy-arm64.S	arm64: arch/arm/lib: Add optimized memset/memcpy/memmove functions	2021-09-24 07:48:06 -04:00
memcpy.S	arm: ARMv4 assembly compatibility	2022-09-02 13:40:42 -04:00
memset-arm64.S	arm64: memset-arm64: Use simple memset when cache is disabled	2021-09-24 07:48:06 -04:00
memset.S	SPDX: Convert all of our single license tags to Linux Kernel style	2018-05-07 09:34:12 -04:00
muldi3.S	SPDX: Convert all of our single license tags to Linux Kernel style	2018-05-07 09:34:12 -04:00
psci-dt.c	treewide: use CONFIG_IS_ENABLED() for ARMV8_SEC_FIRMWARE_SUPPORT	2020-12-04 16:09:05 -05:00
reloc_aarch64_efi.c	arm: Remove unused _relocate arguments	2018-07-19 16:31:36 -04:00
reloc_arm_efi.c	arm: Remove unused _relocate arguments	2018-07-19 16:31:36 -04:00
relocate.S	arm: Use the WEAK assembly entry point consistently	2022-12-06 15:30:30 -05:00
relocate_64.S	Rename CONFIG_SYS_TEXT_BASE to CONFIG_TEXT_BASE	2022-10-31 11:01:31 -04:00
reset.c	reset: Remove addr parameter from reset_cpu()	2021-03-02 14:03:02 -05:00
save_prev_bl_data.c	Correct SPL uses of SAVE_PREV_BL_INITRAMFS_START_ADDR	2023-02-10 07:41:40 -05:00
sections.c	treewide: Convert macro and uses of __section(foo) to __section("foo")	2021-05-24 14:21:30 -04:00
semihosting.S	arm: semihosting: replace inline assembly with assembly file	2023-03-06 17:06:17 -05:00
setjmp.S	arm: ARMv4 assembly compatibility	2022-09-02 13:40:42 -04:00
setjmp_aarch64.S	SPDX: Convert all of our single license tags to Linux Kernel style	2018-05-07 09:34:12 -04:00
spl.c	spl: Make use of CONFIG_IS_ENABLED(OS_BOOT) in SPL/TPL common code paths	2021-11-05 11:23:29 -04:00
stack.c	lmb: arm: Increase LMB alignment to 16k in arch_lmb_reserve_generic()	2021-09-23 14:15:32 -04:00
uldivmod.S	SPDX: Convert all of our single license tags to Linux Kernel style	2018-05-07 09:34:12 -04:00
vectors.S	global: Move remaining CONFIG_SYS_* to CFG_SYS_*	2022-12-05 16:06:08 -05:00
vectors_m.S	Migrate CUSTOM_SYS_INIT_SP_ADDR to Kconfig using system-constants.h	2022-06-06 12:09:19 -04:00
zimage.c	arm: zimage: Use correct symbol to hide messages in SPL	2021-04-27 08:05:30 -04:00