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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/arm/include/asm/module.h | |
| parent | Initial commit. (diff) | |
| download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip | |
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/include/asm/module.h')
| -rw-r--r-- | arch/arm/include/asm/module.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/arch/arm/include/asm/module.h b/arch/arm/include/asm/module.h new file mode 100644 index 000000000..6b36656ee --- /dev/null +++ b/arch/arm/include/asm/module.h @@ -0,0 +1,74 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_ARM_MODULE_H +#define _ASM_ARM_MODULE_H + +#include <asm-generic/module.h> + +struct unwind_table; + +#ifdef CONFIG_ARM_UNWIND +enum { + ARM_SEC_INIT, + ARM_SEC_DEVINIT, + ARM_SEC_CORE, + ARM_SEC_EXIT, + ARM_SEC_DEVEXIT, + ARM_SEC_HOT, + ARM_SEC_UNLIKELY, + ARM_SEC_MAX, +}; +#endif + +#define PLT_ENT_STRIDE L1_CACHE_BYTES +#define PLT_ENT_COUNT (PLT_ENT_STRIDE / sizeof(u32)) +#define PLT_ENT_SIZE (sizeof(struct plt_entries) / PLT_ENT_COUNT) + +struct plt_entries { + u32 ldr[PLT_ENT_COUNT]; + u32 lit[PLT_ENT_COUNT]; +}; + +struct mod_plt_sec { + struct elf32_shdr *plt; + struct plt_entries *plt_ent; + int plt_count; +}; + +struct mod_arch_specific { +#ifdef CONFIG_ARM_UNWIND + struct unwind_table *unwind[ARM_SEC_MAX]; +#endif +#ifdef CONFIG_ARM_MODULE_PLTS + struct mod_plt_sec core; + struct mod_plt_sec init; +#endif +}; + +struct module; +u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr val); + +/* + * Add the ARM architecture version to the version magic string + */ +#define MODULE_ARCH_VERMAGIC_ARMVSN "ARMv" __stringify(__LINUX_ARM_ARCH__) " " + +/* Add __virt_to_phys patching state as well */ +#ifdef CONFIG_ARM_PATCH_PHYS_VIRT +#define MODULE_ARCH_VERMAGIC_P2V "p2v8 " +#else +#define MODULE_ARCH_VERMAGIC_P2V "" +#endif + +/* Add instruction set architecture tag to distinguish ARM/Thumb kernels */ +#ifdef CONFIG_THUMB2_KERNEL +#define MODULE_ARCH_VERMAGIC_ARMTHUMB "thumb2 " +#else +#define MODULE_ARCH_VERMAGIC_ARMTHUMB "" +#endif + +#define MODULE_ARCH_VERMAGIC \ + MODULE_ARCH_VERMAGIC_ARMVSN \ + MODULE_ARCH_VERMAGIC_ARMTHUMB \ + MODULE_ARCH_VERMAGIC_P2V + +#endif /* _ASM_ARM_MODULE_H */ |