/usr/src/linux-headers-5.15.0-181/arch/csky/include/asm/
/usr/src/linux-headers-5.15.0-181/arch/csky/include/asm
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Kbuild1990644editdlrm
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ptrace.h24760644editdlrm
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smp.h6260644editdlrm
spinlock.h18920644editdlrm
spinlock_types.h5040644editdlrm
stackprotector.h7050644editdlrm
string.h2330644editdlrm
switch_to.h9230644editdlrm
syscall.h15630644editdlrm
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tcm.h6650644editdlrm
thread_info.h28660644editdlrm
tlb.h5080644editdlrm
tlbflush.h8240644editdlrm
traps.h7960644editdlrm
uaccess.h52710644editdlrm
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uprobes.h6690644editdlrm
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Edit: /usr/src/linux-headers-5.15.0-181/arch/csky/include/asm/uaccess.h (5271B)
/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_CSKY_UACCESS_H #define __ASM_CSKY_UACCESS_H #define user_addr_max() (current_thread_info()->addr_limit.seg) static inline int __access_ok(unsigned long addr, unsigned long size) { unsigned long limit = user_addr_max(); return (size <= limit) && (addr <= (limit - size)); } #define __access_ok __access_ok /* * __put_user_fn */ extern int __put_user_bad(void); #define __put_user_asm_b(x, ptr, err) \ do { \ int errcode; \ __asm__ __volatile__( \ "1: stb %1, (%2,0) \n" \ " br 3f \n" \ "2: mov %0, %3 \n" \ " br 3f \n" \ ".section __ex_table, \"a\" \n" \ ".align 2 \n" \ ".long 1b,2b \n" \ ".previous \n" \ "3: \n" \ : "=r"(err), "=r"(x), "=r"(ptr), "=r"(errcode) \ : "0"(err), "1"(x), "2"(ptr), "3"(-EFAULT) \ : "memory"); \ } while (0) #define __put_user_asm_h(x, ptr, err) \ do { \ int errcode; \ __asm__ __volatile__( \ "1: sth %1, (%2,0) \n" \ " br 3f \n" \ "2: mov %0, %3 \n" \ " br 3f \n" \ ".section __ex_table, \"a\" \n" \ ".align 2 \n" \ ".long 1b,2b \n" \ ".previous \n" \ "3: \n" \ : "=r"(err), "=r"(x), "=r"(ptr), "=r"(errcode) \ : "0"(err), "1"(x), "2"(ptr), "3"(-EFAULT) \ : "memory"); \ } while (0) #define __put_user_asm_w(x, ptr, err) \ do { \ int errcode; \ __asm__ __volatile__( \ "1: stw %1, (%2,0) \n" \ " br 3f \n" \ "2: mov %0, %3 \n" \ " br 3f \n" \ ".section __ex_table,\"a\" \n" \ ".align 2 \n" \ ".long 1b, 2b \n" \ ".previous \n" \ "3: \n" \ : "=r"(err), "=r"(x), "=r"(ptr), "=r"(errcode) \ : "0"(err), "1"(x), "2"(ptr), "3"(-EFAULT) \ : "memory"); \ } while (0) #define __put_user_asm_64(x, ptr, err) \ do { \ int tmp; \ int errcode; \ \ __asm__ __volatile__( \ " ldw %3, (%1, 0) \n" \ "1: stw %3, (%2, 0) \n" \ " ldw %3, (%1, 4) \n" \ "2: stw %3, (%2, 4) \n" \ " br 4f \n" \ "3: mov %0, %4 \n" \ " br 4f \n" \ ".section __ex_table, \"a\" \n" \ ".align 2 \n" \ ".long 1b, 3b \n" \ ".long 2b, 3b \n" \ ".previous \n" \ "4: \n" \ : "=r"(err), "=r"(x), "=r"(ptr), \ "=r"(tmp), "=r"(errcode) \ : "0"(err), "1"(x), "2"(ptr), "3"(0), \ "4"(-EFAULT) \ : "memory"); \ } while (0) static inline int __put_user_fn(size_t size, void __user *ptr, void *x) { int retval = 0; u32 tmp; switch (size) { case 1: tmp = *(u8 *)x; __put_user_asm_b(tmp, ptr, retval); break; case 2: tmp = *(u16 *)x; __put_user_asm_h(tmp, ptr, retval); break; case 4: tmp = *(u32 *)x; __put_user_asm_w(tmp, ptr, retval); break; case 8: __put_user_asm_64(x, (u64 *)ptr, retval); break; } return retval; } #define __put_user_fn __put_user_fn /* * __get_user_fn */ extern int __get_user_bad(void); #define __get_user_asm_common(x, ptr, ins, err) \ do { \ int errcode; \ __asm__ __volatile__( \ "1: " ins " %1, (%4, 0) \n" \ " br 3f \n" \ "2: mov %0, %2 \n" \ " movi %1, 0 \n" \ " br 3f \n" \ ".section __ex_table,\"a\" \n" \ ".align 2 \n" \ ".long 1b, 2b \n" \ ".previous \n" \ "3: \n" \ : "=r"(err), "=r"(x), "=r"(errcode) \ : "0"(0), "r"(ptr), "2"(-EFAULT) \ : "memory"); \ } while (0) #define __get_user_asm_64(x, ptr, err) \ do { \ int tmp; \ int errcode; \ \ __asm__ __volatile__( \ "1: ldw %3, (%2, 0) \n" \ " stw %3, (%1, 0) \n" \ "2: ldw %3, (%2, 4) \n" \ " stw %3, (%1, 4) \n" \ " br 4f \n" \ "3: mov %0, %4 \n" \ " br 4f \n" \ ".section __ex_table, \"a\" \n" \ ".align 2 \n" \ ".long 1b, 3b \n" \ ".long 2b, 3b \n" \ ".previous \n" \ "4: \n" \ : "=r"(err), "=r"(x), "=r"(ptr), \ "=r"(tmp), "=r"(errcode) \ : "0"(err), "1"(x), "2"(ptr), "3"(0), \ "4"(-EFAULT) \ : "memory"); \ } while (0) static inline int __get_user_fn(size_t size, const void __user *ptr, void *x) { int retval; u32 tmp; switch (size) { case 1: __get_user_asm_common(tmp, ptr, "ldb", retval); *(u8 *)x = (u8)tmp; break; case 2: __get_user_asm_common(tmp, ptr, "ldh", retval); *(u16 *)x = (u16)tmp; break; case 4: __get_user_asm_common(tmp, ptr, "ldw", retval); *(u32 *)x = (u32)tmp; break; case 8: __get_user_asm_64(x, ptr, retval); break; } return retval; } #define __get_user_fn __get_user_fn unsigned long raw_copy_from_user(void *to, const void *from, unsigned long n); unsigned long raw_copy_to_user(void *to, const void *from, unsigned long n); unsigned long __clear_user(void __user *to, unsigned long n); #define __clear_user __clear_user #include #include #endif /* __ASM_CSKY_UACCESS_H */