^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * include/asm-xtensa/ptrace.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * This file is subject to the terms and conditions of the GNU General Public
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * License. See the file "COPYING" in the main directory of this archive
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Copyright (C) 2001 - 2005 Tensilica Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #ifndef _XTENSA_PTRACE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define _XTENSA_PTRACE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <asm/kmem_layout.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <uapi/asm/ptrace.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * Kernel stack
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * +-----------------------+ -------- STACK_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * | register file | |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * +-----------------------+ |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * | struct pt_regs | |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * +-----------------------+ | ------ PT_REGS_OFFSET
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * double : 16 bytes spill area : | ^
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * excetion :- - - - - - - - - - - -: | |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * frame : struct pt_regs : | |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * :- - - - - - - - - - - -: | |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * | | | |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * | memory stack | | |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * | | | |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * ~ ~ ~ ~
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * ~ ~ ~ ~
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * | | | |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * | | | |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * +-----------------------+ | | --- STACK_BIAS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * | struct task_struct | | | ^
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * current --> +-----------------------+ | | |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) * | struct thread_info | | | |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * +-----------------------+ --------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define NO_SYSCALL (-1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #ifndef __ASSEMBLY__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #include <asm/coprocessor.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) * This struct defines the way the registers are stored on the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) * kernel stack during a system call or other kernel entry.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) struct pt_regs {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) unsigned long pc; /* 4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) unsigned long ps; /* 8 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) unsigned long depc; /* 12 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) unsigned long exccause; /* 16 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) unsigned long excvaddr; /* 20 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) unsigned long debugcause; /* 24 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) unsigned long wmask; /* 28 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) unsigned long lbeg; /* 32 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) unsigned long lend; /* 36 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) unsigned long lcount; /* 40 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) unsigned long sar; /* 44 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) unsigned long windowbase; /* 48 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) unsigned long windowstart; /* 52 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) unsigned long syscall; /* 56 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) unsigned long icountlevel; /* 60 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) unsigned long scompare1; /* 64 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) unsigned long threadptr; /* 68 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) /* Additional configurable registers that are used by the compiler. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) xtregs_opt_t xtregs_opt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) /* Make sure the areg field is 16 bytes aligned. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) int align[0] __attribute__ ((aligned(16)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) /* current register frame.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) * Note: The ESF for kernel exceptions ends after 16 registers!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) unsigned long areg[16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #include <asm/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) # define arch_has_single_step() (1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) # define task_pt_regs(tsk) ((struct pt_regs*) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) (task_stack_page(tsk) + KERNEL_STACK_SIZE - (XCHAL_NUM_AREGS-16)*4) - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) # define user_mode(regs) (((regs)->ps & 0x00000020)!=0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) # define instruction_pointer(regs) ((regs)->pc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) # define return_pointer(regs) (MAKE_PC_FROM_RA((regs)->areg[0], \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) (regs)->areg[1]))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) # ifndef CONFIG_SMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) # define profile_pc(regs) instruction_pointer(regs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) # else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) # define profile_pc(regs) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) ({ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) in_lock_functions(instruction_pointer(regs)) ? \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) return_pointer(regs) : instruction_pointer(regs); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) })
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) # endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) #define user_stack_pointer(regs) ((regs)->areg[1])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) static inline unsigned long regs_return_value(struct pt_regs *regs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) return regs->areg[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #else /* __ASSEMBLY__ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) # include <asm/asm-offsets.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) #define PT_REGS_OFFSET (KERNEL_STACK_SIZE - PT_USER_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) #endif /* !__ASSEMBLY__ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) #endif /* _XTENSA_PTRACE_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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