shell bypass 403
UnknownSec Shell
:
/
usr
/
src
/
linux-headers-6.8.0-36
/
arch
/
sh
/
include
/
asm
/ [
drwxr-xr-x
]
upload
mass deface
mass delete
console
info server
name :
processor_32.h
/* SPDX-License-Identifier: GPL-2.0 */ /* * include/asm-sh/processor.h * * Copyright (C) 1999, 2000 Niibe Yutaka * Copyright (C) 2002, 2003 Paul Mundt */ #ifndef __ASM_SH_PROCESSOR_32_H #define __ASM_SH_PROCESSOR_32_H #include <linux/compiler.h> #include <linux/linkage.h> #include <asm/page.h> #include <asm/types.h> #include <asm/hw_breakpoint.h> /* Core Processor Version Register */ #define CCN_PVR 0xff000030 #define CCN_CVR 0xff000040 #define CCN_PRR 0xff000044 /* * User space process size: 2GB. * * Since SH7709 and SH7750 have "area 7", we can't use 0x7c000000--0x7fffffff */ #define TASK_SIZE 0x7c000000UL #define STACK_TOP TASK_SIZE #define STACK_TOP_MAX STACK_TOP /* This decides where the kernel will search for a free chunk of vm * space during mmap's. */ #define TASK_UNMAPPED_BASE PAGE_ALIGN(TASK_SIZE / 3) /* * Bit of SR register * * FD-bit: * When it's set, it means the processor doesn't have right to use FPU, * and it results exception when the floating operation is executed. * * IMASK-bit: * Interrupt level mask */ #define SR_DSP 0x00001000 #define SR_IMASK 0x000000f0 #define SR_FD 0x00008000 #define SR_MD 0x40000000 #define SR_USER_MASK 0x00000303 // M, Q, S, T bits /* * DSP structure and data */ struct sh_dsp_struct { unsigned long dsp_regs[14]; long status; }; /* * FPU structure and data */ struct sh_fpu_hard_struct { unsigned long fp_regs[16]; unsigned long xfp_regs[16]; unsigned long fpscr; unsigned long fpul; long status; /* software status information */ }; /* Dummy fpu emulator */ struct sh_fpu_soft_struct { unsigned long fp_regs[16]; unsigned long xfp_regs[16]; unsigned long fpscr; unsigned long fpul; unsigned char lookahead; unsigned long entry_pc; }; union thread_xstate { struct sh_fpu_hard_struct hardfpu; struct sh_fpu_soft_struct softfpu; }; struct thread_struct { /* Saved registers when thread is descheduled */ unsigned long sp; unsigned long pc; /* Various thread flags, see SH_THREAD_xxx */ unsigned long flags; /* Save middle states of ptrace breakpoints */ struct perf_event *ptrace_bps[HBP_NUM]; #ifdef CONFIG_SH_DSP /* Dsp status information */ struct sh_dsp_struct dsp_status; #endif /* Extended processor state */ union thread_xstate *xstate; /* * fpu_counter contains the number of consecutive context switches * that the FPU is used. If this is over a threshold, the lazy fpu * saving becomes unlazy to save the trap. This is an unsigned char * so that after 256 times the counter wraps and the behavior turns * lazy again; this to deal with bursty apps that only use FPU for * a short time */ unsigned char fpu_counter; }; #define INIT_THREAD { \ .sp = sizeof(init_stack) + (long) &init_stack, \ .flags = 0, \ } /* Forward declaration, a strange C thing */ struct task_struct; extern void start_thread(struct pt_regs *regs, unsigned long new_pc, unsigned long new_sp); /* * FPU lazy state save handling. */ static __inline__ void disable_fpu(void) { unsigned long __dummy; /* Set FD flag in SR */ __asm__ __volatile__("stc sr, %0\n\t" "or %1, %0\n\t" "ldc %0, sr" : "=&r" (__dummy) : "r" (SR_FD)); } static __inline__ void enable_fpu(void) { unsigned long __dummy; /* Clear out FD flag in SR */ __asm__ __volatile__("stc sr, %0\n\t" "and %1, %0\n\t" "ldc %0, sr" : "=&r" (__dummy) : "r" (~SR_FD)); } /* Double presision, NANS as NANS, rounding to nearest, no exceptions */ #define FPSCR_INIT 0x00080000 #define FPSCR_CAUSE_MASK 0x0001f000 /* Cause bits */ #define FPSCR_FLAG_MASK 0x0000007c /* Flag bits */ /* * Return saved PC of a blocked thread. */ #define thread_saved_pc(tsk) (tsk->thread.pc) void show_trace(struct task_struct *tsk, unsigned long *sp, struct pt_regs *regs, const char *loglvl); #ifdef CONFIG_DUMP_CODE void show_code(struct pt_regs *regs); #else static inline void show_code(struct pt_regs *regs) { } #endif extern unsigned long __get_wchan(struct task_struct *p); #define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc) #define KSTK_ESP(tsk) (task_pt_regs(tsk)->regs[15]) #if defined(CONFIG_CPU_SH2A) || defined(CONFIG_CPU_SH4) #define PREFETCH_STRIDE L1_CACHE_BYTES #define ARCH_HAS_PREFETCH #define ARCH_HAS_PREFETCHW static inline void prefetch(const void *x) { __builtin_prefetch(x, 0, 3); } static inline void prefetchw(const void *x) { __builtin_prefetch(x, 1, 3); } #endif #endif /* __ASM_SH_PROCESSOR_32_H */
© 2026 UnknownSec