diff options
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/sections.h | 89 | ||||
| -rw-r--r-- | include/asm-generic/syscall.h | 16 | ||||
| -rw-r--r-- | include/asm-generic/vmlinux.lds.h | 20 |
3 files changed, 72 insertions, 53 deletions
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h index d16302d3eb59..1dfadb2e878d 100644 --- a/include/asm-generic/sections.h +++ b/include/asm-generic/sections.h @@ -64,36 +64,6 @@ extern __visible const void __nosave_begin, __nosave_end; #define dereference_kernel_function_descriptor(p) ((void *)(p)) #endif -/* random extra sections (if any). Override - * in asm/sections.h */ -#ifndef arch_is_kernel_text -static inline int arch_is_kernel_text(unsigned long addr) -{ - return 0; -} -#endif - -#ifndef arch_is_kernel_data -static inline int arch_is_kernel_data(unsigned long addr) -{ - return 0; -} -#endif - -/* - * Check if an address is part of freed initmem. This is needed on architectures - * with virt == phys kernel mapping, for code that wants to check if an address - * is part of a static object within [_stext, _end]. After initmem is freed, - * memory can be allocated from it, and such allocations would then have - * addresses within the range [_stext, _end]. - */ -#ifndef arch_is_kernel_initmem_freed -static inline int arch_is_kernel_initmem_freed(unsigned long addr) -{ - return 0; -} -#endif - /** * memory_contains - checks if an object is contained within a memory region * @begin: virtual address of the beginning of the memory region @@ -159,6 +129,22 @@ static inline bool init_section_intersects(void *virt, size_t size) } /** + * is_kernel_core_data - checks if the pointer address is located in the + * .data section + * + * @addr: address to check + * + * Returns: true if the address is located in .data, false otherwise. + * Note: On some archs it may return true for core RODATA, and false + * for others. But will always be true for core RW data. + */ +static inline bool is_kernel_core_data(unsigned long addr) +{ + return addr >= (unsigned long)_sdata && + addr < (unsigned long)_edata; +} + +/** * is_kernel_rodata - checks if the pointer address is located in the * .rodata section * @@ -172,4 +158,47 @@ static inline bool is_kernel_rodata(unsigned long addr) addr < (unsigned long)__end_rodata; } +/** + * is_kernel_inittext - checks if the pointer address is located in the + * .init.text section + * + * @addr: address to check + * + * Returns: true if the address is located in .init.text, false otherwise. + */ +static inline bool is_kernel_inittext(unsigned long addr) +{ + return addr >= (unsigned long)_sinittext && + addr < (unsigned long)_einittext; +} + +/** + * __is_kernel_text - checks if the pointer address is located in the + * .text section + * + * @addr: address to check + * + * Returns: true if the address is located in .text, false otherwise. + * Note: an internal helper, only check the range of _stext to _etext. + */ +static inline bool __is_kernel_text(unsigned long addr) +{ + return addr >= (unsigned long)_stext && + addr < (unsigned long)_etext; +} + +/** + * __is_kernel - checks if the pointer address is located in the kernel range + * + * @addr: address to check + * + * Returns: true if the address is located in the kernel range, false otherwise. + * Note: an internal helper, only check the range of _stext to _end. + */ +static inline bool __is_kernel(unsigned long addr) +{ + return addr >= (unsigned long)_stext && + addr < (unsigned long)_end; +} + #endif /* _ASM_GENERIC_SECTIONS_H_ */ diff --git a/include/asm-generic/syscall.h b/include/asm-generic/syscall.h index 524218ae3825..81695eb02a12 100644 --- a/include/asm-generic/syscall.h +++ b/include/asm-generic/syscall.h @@ -118,22 +118,6 @@ void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, unsigned long *args); /** - * syscall_set_arguments - change system call parameter value - * @task: task of interest, must be in system call entry tracing - * @regs: task_pt_regs() of @task - * @args: array of argument values to store - * - * Changes 6 arguments to the system call. - * The first argument gets value @args[0], and so on. - * - * It's only valid to call this when @task is stopped for tracing on - * entry to a system call, due to %SYSCALL_WORK_SYSCALL_TRACE or - * %SYSCALL_WORK_SYSCALL_AUDIT. - */ -void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - const unsigned long *args); - -/** * syscall_get_arch - return the AUDIT_ARCH for the current system call * @task: task of interest, must be blocked * diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 0c0d3608ea11..42f3866bca69 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -476,13 +476,7 @@ __end_pci_fixups_suspend_late = .; \ } \ \ - /* Built-in firmware blobs */ \ - .builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) ALIGN(8) { \ - __start_builtin_fw = .; \ - KEEP(*(.builtin_fw)) \ - __end_builtin_fw = .; \ - } \ - \ + FW_LOADER_BUILT_IN_DATA \ TRACEDATA \ \ PRINTK_INDEX \ @@ -887,6 +881,18 @@ #define ORC_UNWIND_TABLE #endif +/* Built-in firmware blobs */ +#ifdef CONFIG_FW_LOADER +#define FW_LOADER_BUILT_IN_DATA \ + .builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) ALIGN(8) { \ + __start_builtin_fw = .; \ + KEEP(*(.builtin_fw)) \ + __end_builtin_fw = .; \ + } +#else +#define FW_LOADER_BUILT_IN_DATA +#endif + #ifdef CONFIG_PM_TRACE #define TRACEDATA \ . = ALIGN(4); \ |