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1036b89580
linux/arch/arm/mm
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Linus Walleij 1036b89580 ARM: 9385/2: mm: Type-annotate all cache assembly routines 
Tag all references to assembly functions with SYM_TYPED_FUNC_START()
and SYM_FUNC_END() so they also become CFI-safe.

When we add SYM_TYPED_FUNC_START() to assembly calls, a function
prototype signature will be emitted into the object file at
(pc-4) at the call site, so that the KCFI runtime check can compare
this to the expected call. Example:

8011ae38:       a540670c        .word   0xa540670c

8011ae3c <v7_flush_icache_all>:
8011ae3c:       e3a00000        mov     r0, #0
8011ae40:       ee070f11        mcr     15, 0, r0, cr7, cr1, {0}
8011ae44:       e12fff1e        bx      lr

This means no "fallthrough" code can enter a SYM_TYPED_FUNC_START()
call from above it: there will be a function prototype signature
there, so those are consistently converted to a branch or ret lr
depending on context.

Tested-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
2024-04-29 14:14:16 +01:00
..
abort-ev4.S
abort-ev4t.S
abort-ev5t.S
abort-ev5tj.S
abort-ev6.S ARM: 9263/1: use .arch directives instead of assembler command line flags 2022-11-08 18:36:17 +00:00
abort-ev7.S ARM: 9263/1: use .arch directives instead of assembler command line flags 2022-11-08 18:36:17 +00:00
abort-lv4t.S
abort-macro.S
abort-nommu.S
alignment.c ARM: 9214/1: alignment: advance IT state after emulating Thumb instruction 2022-07-06 22:44:49 +01:00
cache-b15-rac.c ARM: mm: fix typos in comments 2022-04-04 10:18:54 -07:00
cache-fa.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
cache-feroceon-l2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 1) 2022-06-10 14:51:35 +02:00
cache-l2x0-pmu.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
cache-l2x0.c ARM: 9007/1: l2c: fix prefetch bits init in L2X0_AUX_CTRL using DT values 2020-09-15 14:35:53 +01:00
cache-nop.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
cache-tauros2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 1) 2022-06-10 14:51:35 +02:00
cache-tauros3.h
cache-uniphier.c ARM: uniphier: fix cache kernel-doc warnings 2023-09-27 11:02:14 +02:00
cache-v4.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
cache-v4wb.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
cache-v4wt.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
cache-v6.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
cache-v7.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
cache-v7m.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
cache-xsc3l2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
context.c ARM: mm: make vmalloc_seq handling SMP safe 2022-01-25 09:53:52 +01:00
copypage-fa.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
copypage-feroceon.c ARM: 9263/1: use .arch directives instead of assembler command line flags 2022-11-08 18:36:17 +00:00
copypage-v4mc.c arm: implement the new page table range API 2023-08-24 16:20:20 -07:00
copypage-v4wb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
copypage-v4wt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
copypage-v6.c arm: implement the new page table range API 2023-08-24 16:20:20 -07:00
copypage-xsc3.c ARM: PXA: fix multi-cpu build of xsc3 2022-05-07 22:56:16 +02:00
copypage-xscale.c arm: implement the new page table range API 2023-08-24 16:20:20 -07:00
dma-mapping-nommu.c iommu: Remove struct iommu_ops *iommu from arch_setup_dma_ops() 2023-12-12 10:18:45 +01:00
dma-mapping.c IOMMU Updates for Linux v6.8 2024-01-18 15:16:57 -08:00
dma.h
dump.c mm/treewide: replace pmd_large() with pmd_leaf() 2024-03-06 13:04:19 -08:00
extable.c
fault-armv.c arm: implement the new page table range API 2023-08-24 16:20:20 -07:00
fault.c ARM updates for v6.9-rc1 2024-03-23 09:17:03 -07:00
fault.h ARM: 9304/1: add prototype for function called only from asm 2023-06-19 09:35:52 +01:00
flush.c ARM: 9359/1: flush: check if the folio is reserved for no-mapping addresses 2024-03-11 16:04:19 +00:00
fsr-2level.c
fsr-3level.c
hugetlbpage.c mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
idmap.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
init.c ARM updates for v6.9-rc1 2024-03-23 09:17:03 -07:00
iomap.c ARM: 8923/1: mm: include <asm/vga.h> for vga_base 2019-10-31 16:58:54 +00:00
ioremap.c mm: Introduce vmap_page_range() to map pages in PCI address space 2024-03-11 16:58:10 +01:00
kasan_init.c ARM: 9329/1: kasan: Use memblock_alloc_try_nid_raw for shadow page 2023-12-05 11:42:15 +00:00
Kconfig ARM: Delete ARM11MPCore (ARM11 ARMv6K SMP) support 2023-12-22 11:43:16 +00:00
l2c-common.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
l2c-l2x0-resume.S
Makefile ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00
mm.h arm: implement the new page table range API 2023-08-24 16:20:20 -07:00
mmap.c arm: Use the generic devmem_is_allowed() 2020-12-11 12:28:24 -08:00
mmu.c arm/mm: use pte_next_pfn() in set_ptes() 2024-02-22 10:24:51 -08:00
nommu.c arm: implement the new page table range API 2023-08-24 16:20:20 -07:00
pabort-legacy.S
pabort-v6.S
pabort-v7.S
pageattr.c minmax: add in_range() macro 2023-08-24 16:20:18 -07:00
pgd.c ARM: 9016/2: Initialize the mapping of KASan shadow memory 2020-10-27 12:11:10 +00:00
physaddr.c ARM: mm: Make virt_to_pfn() a static inline 2023-05-29 11:27:08 +02:00
pmsa-v7.c ARM: 9069/1: NOMMU: Fix conversion for_each_membock() to for_each_mem_range() 2021-03-25 10:25:20 +00:00
pmsa-v8.c ARM: mm: Make virt_to_pfn() a static inline 2023-05-29 11:27:08 +02:00
proc-arm7tdmi.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm9tdmi.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm720.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm740.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-arm920.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
proc-arm922.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
proc-arm925.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
proc-arm926.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
proc-arm940.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
proc-arm946.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
proc-arm1020.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
proc-arm1020e.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
proc-arm1022.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
proc-arm1026.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
proc-fa526.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-feroceon.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
proc-macros.S ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00
proc-mohawk.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
proc-sa110.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-sa1100.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
proc-syms.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
proc-v6.S ARM: 9263/1: use .arch directives instead of assembler command line flags 2022-11-08 18:36:17 +00:00
proc-v7-2level.S ARM: 9263/1: use .arch directives instead of assembler command line flags 2022-11-08 18:36:17 +00:00
proc-v7-3level.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
proc-v7-bugs.c ARM: 9213/1: Print message about disabled Spectre workarounds only once 2022-07-06 22:44:49 +01:00
proc-v7.S ARM: mm: Make virt_to_pfn() a static inline 2023-05-29 11:27:08 +02:00
proc-v7m.S ARM: mm: Make virt_to_pfn() a static inline 2023-05-29 11:27:08 +02:00
proc-xsc3.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
proc-xscale.S ARM: 9385/2: mm: Type-annotate all cache assembly routines 2024-04-29 14:14:16 +01:00
ptdump_debugfs.c ARM: 9074/1: ptdump: convert to DEFINE_SHOW_ATTRIBUTE 2021-04-18 19:15:13 +01:00
pv-fixup-asm.S ARM: mm: Make virt_to_pfn() a static inline 2023-05-29 11:27:08 +02:00
tlb-fa.S ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00
tlb-v4.S ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00
tlb-v4wb.S ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00
tlb-v4wbi.S ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00
tlb-v6.S ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00
tlb-v7.S ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00
tlb.c ARM: 9384/2: mm: Make tlbflush routines CFI safe 2024-04-29 14:14:15 +01:00