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xianfeng |
/*
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* linux/arch/or32/kernel/entry.S
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*
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* or32 version
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* author(s): Matjaz Breskvar (phoenix@bsemi.com)
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*
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* changes:
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* 18. 11. 2003: Matjaz Breskvar (phoenix@bsemi.com)
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* initial port to or32 architecture
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* 06. 12. 2003: Matjaz Breskvar (phoenix@bsemi.com)
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* major changes in handling exceptions
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* physical addresses used only by code in head.S
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* cleand exception handlers and moved them to entry.S
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* 31. 12. 2005: Gyorgy Jeney (nog@bsemi.com)
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* Added syscall traceing code
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*
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* syscall table entries are based on ppc port, so they will probably
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* need some more cleaning.
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*
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* Stack layout in 'ret_from_system_call':
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* ptrace needs to have all regs on the stack.
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* if the order here is changed, it needs to be
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* updated in fork.c:copy_process, signal.c:do_signal,
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* ptrace.c and ptrace.h
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*
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* syscall table entries are based on ppc port, so it will probably need
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* some more cleaning.
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*/
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#include
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#include
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#include
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#include
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#include
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#include
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#include
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#include
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#include
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#include
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#include
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#include
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#include
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/* some defines to ease or32 assembly programming */
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#include "or32_funcs.S"
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#define GET_CURRENT_THREAD_INFO(reg,ksp) \
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l.srli reg,ksp,PAGE_SHIFT ;\
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l.slli reg,reg,PAGE_SHIFT
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/* =========================================================[ macros ]=== */
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#define PUSH_PT_REGS_NO_TRANS \
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l.addi r1,r1,-(INT_FRAME_SIZE) ;\
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l.sw GPR3(r1),r3 ;\
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l.sw ORIG_GPR3(r1),r3 ;\
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l.mfspr r3,r0,SPR_EPCR_BASE ;\
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l.sw PC(r1),r3 ;\
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l.mfspr r3,r0,SPR_ESR_BASE ;\
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l.sw SR(r1),r3 ;\
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l.addi r3,r1,+(INT_FRAME_SIZE) ;\
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l.sw SP(r1),r3 ;\
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l.sw GPR2(r1),r2 ;\
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l.lwz r3,GPR3(r1) ;\
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l.sw GPR4(r1),r4 ;\
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l.sw GPR5(r1),r5 ;\
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l.sw GPR6(r1),r6 ;\
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l.sw GPR7(r1),r7 ;\
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l.sw GPR8(r1),r8 ;\
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l.sw GPR9(r1),r9 ;\
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l.sw GPR10(r1),r10 ;\
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l.sw GPR11(r1),r11 ;\
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l.sw GPR12(r1),r12 ;\
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l.sw GPR13(r1),r13 ;\
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l.sw GPR14(r1),r14 ;\
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l.sw GPR15(r1),r15 ;\
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l.sw GPR16(r1),r16 ;\
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l.sw GPR17(r1),r17 ;\
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l.sw GPR18(r1),r18 ;\
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l.sw GPR19(r1),r19 ;\
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l.sw GPR20(r1),r20 ;\
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l.sw GPR21(r1),r21 ;\
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l.sw GPR22(r1),r22 ;\
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l.sw GPR23(r1),r23 ;\
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l.sw GPR24(r1),r24 ;\
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l.sw GPR25(r1),r25 ;\
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l.sw GPR26(r1),r26 ;\
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l.sw GPR27(r1),r27 ;\
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l.sw GPR28(r1),r28 ;\
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l.sw GPR29(r1),r29 ;\
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l.sw GPR30(r1),r30 ;\
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l.sw GPR31(r1),r31 ;\
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l.sw RESULT(r1),r0
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/*
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* We need to disable interrupts at beginning of RESTORE_ALL
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* since interrupt might come in after we've loaded EPC return address
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* and overwrite EPC with address somewhere in RESTORE_ALL
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* which is of course wrong!
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*/
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#define RESTORE_ALL \
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DISABLE_INTERRUPTS(r3,r4) ;\
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l.lwz r3,PC(r1) ;\
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l.mtspr r0,r3,SPR_EPCR_BASE ;\
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l.lwz r3,SR(r1) ;\
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l.mtspr r0,r3,SPR_ESR_BASE ;\
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l.lwz r2,GPR2(r1) ;\
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l.lwz r3,GPR3(r1) ;\
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l.lwz r4,GPR4(r1) ;\
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l.lwz r5,GPR5(r1) ;\
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l.lwz r6,GPR6(r1) ;\
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l.lwz r7,GPR7(r1) ;\
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l.lwz r8,GPR8(r1) ;\
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l.lwz r9,GPR9(r1) ;\
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l.lwz r10,GPR10(r1) ;\
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l.lwz r11,GPR11(r1) ;\
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l.lwz r12,GPR12(r1) ;\
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l.lwz r13,GPR13(r1) ;\
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l.lwz r14,GPR14(r1) ;\
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l.lwz r15,GPR15(r1) ;\
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l.lwz r16,GPR16(r1) ;\
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l.lwz r17,GPR17(r1) ;\
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l.lwz r18,GPR18(r1) ;\
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l.lwz r19,GPR19(r1) ;\
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l.lwz r20,GPR20(r1) ;\
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l.lwz r21,GPR21(r1) ;\
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l.lwz r22,GPR22(r1) ;\
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l.lwz r23,GPR23(r1) ;\
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l.lwz r24,GPR24(r1) ;\
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l.lwz r25,GPR25(r1) ;\
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l.lwz r26,GPR26(r1) ;\
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l.lwz r27,GPR27(r1) ;\
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l.lwz r28,GPR28(r1) ;\
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l.lwz r29,GPR29(r1) ;\
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l.lwz r30,GPR30(r1) ;\
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l.lwz r31,GPR31(r1) ;\
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l.lwz r1,SP(r1) ;\
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l.rfe
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#define RESTORE_ALL_NO_R11 \
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DISABLE_INTERRUPTS(r3,r4) ;\
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l.lwz r3,PC(r1) ;\
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l.mtspr r0,r3,SPR_EPCR_BASE ;\
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l.lwz r3,SR(r1) ;\
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l.mtspr r0,r3,SPR_ESR_BASE ;\
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l.lwz r2,GPR2(r1) ;\
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l.lwz r3,GPR3(r1) ;\
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l.lwz r4,GPR4(r1) ;\
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l.lwz r5,GPR5(r1) ;\
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l.lwz r6,GPR6(r1) ;\
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l.lwz r7,GPR7(r1) ;\
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l.lwz r8,GPR8(r1) ;\
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l.lwz r9,GPR9(r1) ;\
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l.lwz r10,GPR10(r1) ;\
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l.lwz r12,GPR12(r1) ;\
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l.lwz r13,GPR13(r1) ;\
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l.lwz r14,GPR14(r1) ;\
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l.lwz r15,GPR15(r1) ;\
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l.lwz r16,GPR16(r1) ;\
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l.lwz r17,GPR17(r1) ;\
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l.lwz r18,GPR18(r1) ;\
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l.lwz r19,GPR19(r1) ;\
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l.lwz r20,GPR20(r1) ;\
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l.lwz r21,GPR21(r1) ;\
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l.lwz r22,GPR22(r1) ;\
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l.lwz r23,GPR23(r1) ;\
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l.lwz r24,GPR24(r1) ;\
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l.lwz r25,GPR25(r1) ;\
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l.lwz r26,GPR26(r1) ;\
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l.lwz r27,GPR27(r1) ;\
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l.lwz r28,GPR28(r1) ;\
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l.lwz r29,GPR29(r1) ;\
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l.lwz r30,GPR30(r1) ;\
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l.lwz r31,GPR31(r1) ;\
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l.lwz r1,SP(r1) ;\
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l.rfe
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#define EXCEPTION_ENTRY(handler) \
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.global handler ;\
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handler: ;\
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/* r1, EPCR, ESR a already saved */ ;\
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l.sw GPR2(r1),r2 ;\
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l.sw GPR3(r1),r3 ;\
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l.sw ORIG_GPR3(r1),r3 ;\
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/* r4 already save */ ;\
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l.sw GPR5(r1),r5 ;\
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l.sw GPR6(r1),r6 ;\
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l.sw GPR7(r1),r7 ;\
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l.sw GPR8(r1),r8 ;\
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l.sw GPR9(r1),r9 ;\
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/* r10 already saved */ ;\
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l.sw GPR11(r1),r11 ;\
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/* r12,r13 already saved */ ;\
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l.sw GPR14(r1),r14 ;\
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l.sw GPR15(r1),r15 ;\
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l.sw GPR16(r1),r16 ;\
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l.sw GPR17(r1),r17 ;\
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l.sw GPR18(r1),r18 ;\
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l.sw GPR19(r1),r19 ;\
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l.sw GPR20(r1),r20 ;\
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l.sw GPR21(r1),r21 ;\
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l.sw GPR22(r1),r22 ;\
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l.sw GPR23(r1),r23 ;\
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l.sw GPR24(r1),r24 ;\
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l.sw GPR25(r1),r25 ;\
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l.sw GPR26(r1),r26 ;\
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l.sw GPR27(r1),r27 ;\
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l.sw GPR28(r1),r28 ;\
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l.sw GPR29(r1),r29 ;\
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l.sw GPR30(r1),r30 ;\
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/* r31 already save */ ;\
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l.sw RESULT(r1),r0
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#define UNHANDLED_EXCEPTION(handler,vector) \
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.global handler ;\
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handler: ;\
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/* r1, EPCR, ESR already saved */ ;\
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l.sw GPR2(r1),r2 ;\
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l.sw GPR3(r1),r3 ;\
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l.sw ORIG_GPR3(r1),r3 ;\
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l.sw GPR5(r1),r5 ;\
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l.sw GPR6(r1),r6 ;\
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l.sw GPR7(r1),r7 ;\
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l.sw GPR8(r1),r8 ;\
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l.sw GPR9(r1),r9 ;\
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/* r10 already saved */ ;\
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l.sw GPR11(r1),r11 ;\
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/* r12,r13 already saved */ ;\
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l.sw GPR14(r1),r14 ;\
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l.sw GPR15(r1),r15 ;\
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l.sw GPR16(r1),r16 ;\
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l.sw GPR17(r1),r17 ;\
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l.sw GPR18(r1),r18 ;\
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l.sw GPR19(r1),r19 ;\
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l.sw GPR20(r1),r20 ;\
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l.sw GPR21(r1),r21 ;\
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l.sw GPR22(r1),r22 ;\
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l.sw GPR23(r1),r23 ;\
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l.sw GPR24(r1),r24 ;\
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l.sw GPR25(r1),r25 ;\
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l.sw GPR26(r1),r26 ;\
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l.sw GPR27(r1),r27 ;\
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l.sw GPR28(r1),r28 ;\
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l.sw GPR29(r1),r29 ;\
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l.sw GPR30(r1),r30 ;\
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/* r31 already saved */ ;\
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l.sw RESULT(r1),r0 ;\
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l.addi r3,r1,0 ;\
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/* r4 is exception EA */ ;\
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l.addi r5,r0,vector ;\
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l.jal _unhandled_exception ;\
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l.nop ;\
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l.j _ret_from_exception ;\
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l.nop 1
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/*
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* NOTE: one should never assume that SPR_EPC, SPR_ESR, SPR_EEAR
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| 262 |
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* contain the same values as when exception we're handling
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| 263 |
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* occured. in fact they never do. if you need them use
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| 264 |
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* values saved on stack (for SPR_EPC, SPR_ESR) or content
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| 265 |
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* of r4 (for SPR_EEAR). for details look at EXCEPTION_HANDLE()
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| 266 |
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* in 'arch/or32/kernel/head.S'
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| 267 |
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*/
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| 268 |
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| 269 |
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/* =====================================================[ exceptions] === */
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| 270 |
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| 271 |
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/* ---[ 0x100: RESET exception ]----------------------------------------- */
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| 272 |
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| 273 |
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EXCEPTION_ENTRY(_tng_kernel_start)
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| 274 |
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l.jal _start
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| 275 |
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l.nop
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| 276 |
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| 277 |
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/* ---[ 0x200: BUS exception ]------------------------------------------- */
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| 278 |
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| 279 |
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UNHANDLED_EXCEPTION(_vector_0x200,0x200)
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| 280 |
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| 281 |
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/* ---[ 0x300: Data Page Fault exception ]------------------------------- */
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| 282 |
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| 283 |
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EXCEPTION_ENTRY(_data_page_fault_handler)
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| 284 |
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/* set up parameters for do_page_fault */
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| 285 |
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l.addi r3,r1,0 // pt_regs
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| 286 |
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/* r4 set be EXCEPTION_HANDLE */ // effective address of fault
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| 287 |
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l.ori r5,r0,0x300 // exception vector
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| 288 |
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| 289 |
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/*
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| 290 |
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* __PHX__: TODO
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| 291 |
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*
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| 292 |
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* all this can be written much simpler. look at
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| 293 |
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* DTLB miss handler in the CONFIG_GUARD_PROTECTED_CORE part
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| 294 |
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*/
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| 295 |
|
|
#ifdef CONFIG_OR32_NO_SPR_SR_DSX
|
| 296 |
|
|
l.lwz r6,PC(r3) // address of an offending insn
|
| 297 |
|
|
l.lwz r6,0(r6) // instruction that caused pf
|
| 298 |
|
|
|
| 299 |
|
|
l.srli r6,r6,26 // check opcode for jump insn
|
| 300 |
|
|
l.sfeqi r6,0 // l.j
|
| 301 |
|
|
l.bf 8f
|
| 302 |
|
|
l.sfeqi r6,1 // l.jal
|
| 303 |
|
|
l.bf 8f
|
| 304 |
|
|
l.sfeqi r6,3 // l.bnf
|
| 305 |
|
|
l.bf 8f
|
| 306 |
|
|
l.sfeqi r6,4 // l.bf
|
| 307 |
|
|
l.bf 8f
|
| 308 |
|
|
l.sfeqi r6,0x11 // l.jr
|
| 309 |
|
|
l.bf 8f
|
| 310 |
|
|
l.sfeqi r6,0x12 // l.jalr
|
| 311 |
|
|
l.bf 8f
|
| 312 |
|
|
|
| 313 |
|
|
l.nop
|
| 314 |
|
|
|
| 315 |
|
|
l.j 9f
|
| 316 |
|
|
l.nop
|
| 317 |
|
|
8:
|
| 318 |
|
|
|
| 319 |
|
|
l.lwz r6,PC(r3) // address of an offending insn
|
| 320 |
|
|
l.addi r6,r6,4
|
| 321 |
|
|
l.lwz r6,0(r6) // instruction that caused pf
|
| 322 |
|
|
l.srli r6,r6,26 // get opcode
|
| 323 |
|
|
9:
|
| 324 |
|
|
|
| 325 |
|
|
#else
|
| 326 |
|
|
|
| 327 |
|
|
l.mfspr r6,r0,SPR_SR // SR
|
| 328 |
|
|
// l.lwz r6,SR(r3) // ESR
|
| 329 |
|
|
l.andi r6,r6,SPR_SR_DSX // check for delay slot exception
|
| 330 |
|
|
l.sfeqi r6,0x1 // exception happened in delay slot
|
| 331 |
|
|
l.bnf 7f
|
| 332 |
|
|
l.lwz r6,PC(r3) // address of an offending insn
|
| 333 |
|
|
|
| 334 |
|
|
l.addi r6,r6,4 // offending insn is in delay slot
|
| 335 |
|
|
7:
|
| 336 |
|
|
l.lwz r6,0(r6) // instruction that caused pf
|
| 337 |
|
|
l.srli r6,r6,26 // check opcode for write access
|
| 338 |
|
|
#endif
|
| 339 |
|
|
|
| 340 |
|
|
l.sfgeui r6,0x34 // check opcode for write access
|
| 341 |
|
|
l.bnf 1f
|
| 342 |
|
|
l.sfleui r6,0x37
|
| 343 |
|
|
l.bnf 1f
|
| 344 |
|
|
l.ori r6,r0,0x1 // write access
|
| 345 |
|
|
l.j 2f
|
| 346 |
|
|
l.nop
|
| 347 |
|
|
1: l.ori r6,r0,0x0 // !write access
|
| 348 |
|
|
2:
|
| 349 |
|
|
|
| 350 |
|
|
/* call fault.c handler in or32/mm/fault.c */
|
| 351 |
|
|
l.jal _do_page_fault
|
| 352 |
|
|
l.nop
|
| 353 |
|
|
l.j _ret_from_exception
|
| 354 |
|
|
l.nop
|
| 355 |
|
|
|
| 356 |
|
|
/* ---[ 0x400: Insn Page Fault exception ]------------------------------- */
|
| 357 |
|
|
|
| 358 |
|
|
EXCEPTION_ENTRY(_insn_page_fault_handler)
|
| 359 |
|
|
/* set up parameters for do_page_fault */
|
| 360 |
|
|
l.addi r3,r1,0 // pt_regs
|
| 361 |
|
|
/* r4 set be EXCEPTION_HANDLE */ // effective address of fault
|
| 362 |
|
|
l.ori r5,r0,0x400 // exception vector
|
| 363 |
|
|
l.ori r6,r0,0x0 // !write access
|
| 364 |
|
|
|
| 365 |
|
|
/* call fault.c handler in or32/mm/fault.c */
|
| 366 |
|
|
l.jal _do_page_fault
|
| 367 |
|
|
l.nop
|
| 368 |
|
|
l.j _ret_from_exception
|
| 369 |
|
|
l.nop
|
| 370 |
|
|
|
| 371 |
|
|
|
| 372 |
|
|
/* ---[ 0x500: Timer exception ]----------------------------------------- */
|
| 373 |
|
|
|
| 374 |
|
|
EXCEPTION_ENTRY(_timer_handler)
|
| 375 |
|
|
#ifdef CONFIG_OR32_ESR_EXCEPTION_BUG_CHECK
|
| 376 |
|
|
|
| 377 |
|
|
l.lwz r4,SR(r1) // were interrupts enabled ?
|
| 378 |
|
|
l.andi r4,r4,SPR_SR_TEE
|
| 379 |
|
|
l.sfeqi r4,0
|
| 380 |
|
|
l.bnf 1f // tick irq enabled, all ok.
|
| 381 |
|
|
l.nop
|
| 382 |
|
|
|
| 383 |
|
|
l.addi r1,r1,-0x8
|
| 384 |
|
|
LOAD_SYMBOL_2_GPR(r3,42f)
|
| 385 |
|
|
l.sw 0x0(r1),r3
|
| 386 |
|
|
l.jal _printk
|
| 387 |
|
|
l.sw 0x4(r1),r4
|
| 388 |
|
|
l.addi r1,r1,0x8
|
| 389 |
|
|
|
| 390 |
|
|
.section .rodata, "a"
|
| 391 |
|
|
42:
|
| 392 |
|
|
.string "\n\rESR interrupt bug: in _timer_handler (ESR %x)\n\r"
|
| 393 |
|
|
.align 4
|
| 394 |
|
|
.previous
|
| 395 |
|
|
|
| 396 |
|
|
l.ori r4,r4,SPR_SR_TEE // fix the bug
|
| 397 |
|
|
// l.sw SR(r1),r4
|
| 398 |
|
|
1:
|
| 399 |
|
|
#endif
|
| 400 |
|
|
l.addi r3,r1,0
|
| 401 |
|
|
LOAD_SYMBOL_2_GPR(r8,_timer_interrupt)
|
| 402 |
|
|
l.jalr r8
|
| 403 |
|
|
l.nop
|
| 404 |
|
|
l.j _ret_from_intr
|
| 405 |
|
|
l.nop
|
| 406 |
|
|
|
| 407 |
|
|
/* ---[ 0x600: Aligment exception ]-------------------------------------- */
|
| 408 |
|
|
|
| 409 |
|
|
#if 1
|
| 410 |
|
|
UNHANDLED_EXCEPTION(_vector_0x600,0x600)
|
| 411 |
|
|
#endif
|
| 412 |
|
|
|
| 413 |
|
|
#if 0
|
| 414 |
|
|
EXCEPTION_ENTRY(_aligment_handler)
|
| 415 |
|
|
// l.mfspr r2,r0,SPR_EEAR_BASE /* Load the efective addres */
|
| 416 |
|
|
l.addi r2,r4,0
|
| 417 |
|
|
// l.mfspr r5,r0,SPR_EPCR_BASE /* Load the insn address */
|
| 418 |
|
|
l.lwz r5,PC(r1)
|
| 419 |
|
|
|
| 420 |
|
|
l.lwz r3,0(r5) /* Load insn */
|
| 421 |
|
|
l.srli r4,r3,26 /* Shift left to get the insn opcode */
|
| 422 |
|
|
|
| 423 |
|
|
l.sfeqi r4,0x00 /* Check if the load/store insn is in delay slot */
|
| 424 |
|
|
l.bf jmp
|
| 425 |
|
|
l.sfeqi r4,0x01
|
| 426 |
|
|
l.bf jmp
|
| 427 |
|
|
l.sfeqi r4,0x03
|
| 428 |
|
|
l.bf jmp
|
| 429 |
|
|
l.sfeqi r4,0x04
|
| 430 |
|
|
l.bf jmp
|
| 431 |
|
|
l.sfeqi r4,0x11
|
| 432 |
|
|
l.bf jr
|
| 433 |
|
|
l.sfeqi r4,0x12
|
| 434 |
|
|
l.bf jr
|
| 435 |
|
|
l.nop
|
| 436 |
|
|
l.j 1f
|
| 437 |
|
|
l.addi r5,r5,4 /* Increment PC to get return insn address */
|
| 438 |
|
|
|
| 439 |
|
|
jmp:
|
| 440 |
|
|
l.slli r4,r3,6 /* Get the signed extended jump length */
|
| 441 |
|
|
l.srai r4,r4,4
|
| 442 |
|
|
|
| 443 |
|
|
l.lwz r3,4(r5) /* Load the real load/store insn */
|
| 444 |
|
|
|
| 445 |
|
|
l.add r5,r5,r4 /* Calculate jump target address */
|
| 446 |
|
|
|
| 447 |
|
|
l.j 1f
|
| 448 |
|
|
l.srli r4,r3,26 /* Shift left to get the insn opcode */
|
| 449 |
|
|
|
| 450 |
|
|
jr:
|
| 451 |
|
|
l.slli r4,r3,9 /* Shift to get the reg nb */
|
| 452 |
|
|
l.andi r4,r4,0x7c
|
| 453 |
|
|
|
| 454 |
|
|
l.lwz r3,4(r5) /* Load the real load/store insn */
|
| 455 |
|
|
|
| 456 |
|
|
l.add r4,r4,r1 /* Load the jump register value from the stack */
|
| 457 |
|
|
l.lwz r5,0(r4)
|
| 458 |
|
|
|
| 459 |
|
|
l.srli r4,r3,26 /* Shift left to get the insn opcode */
|
| 460 |
|
|
|
| 461 |
|
|
|
| 462 |
|
|
1:
|
| 463 |
|
|
// l.mtspr r0,r5,SPR_EPCR_BASE
|
| 464 |
|
|
l.sw PC(r1),r5
|
| 465 |
|
|
|
| 466 |
|
|
l.sfeqi r4,0x26
|
| 467 |
|
|
l.bf lhs
|
| 468 |
|
|
l.sfeqi r4,0x25
|
| 469 |
|
|
l.bf lhz
|
| 470 |
|
|
l.sfeqi r4,0x22
|
| 471 |
|
|
l.bf lws
|
| 472 |
|
|
l.sfeqi r4,0x21
|
| 473 |
|
|
l.bf lwz
|
| 474 |
|
|
l.sfeqi r4,0x37
|
| 475 |
|
|
l.bf sh
|
| 476 |
|
|
l.sfeqi r4,0x35
|
| 477 |
|
|
l.bf sw
|
| 478 |
|
|
l.nop
|
| 479 |
|
|
|
| 480 |
|
|
1: l.j 1b /* I don't know what to do */
|
| 481 |
|
|
l.nop
|
| 482 |
|
|
|
| 483 |
|
|
lhs: l.lbs r5,0(r2)
|
| 484 |
|
|
l.slli r5,r5,8
|
| 485 |
|
|
l.lbz r6,1(r2)
|
| 486 |
|
|
l.or r5,r5,r6
|
| 487 |
|
|
l.srli r4,r3,19
|
| 488 |
|
|
l.andi r4,r4,0x7c
|
| 489 |
|
|
l.add r4,r4,r1
|
| 490 |
|
|
l.j align_end
|
| 491 |
|
|
l.sw 0(r4),r5
|
| 492 |
|
|
|
| 493 |
|
|
lhz: l.lbz r5,0(r2)
|
| 494 |
|
|
l.slli r5,r5,8
|
| 495 |
|
|
l.lbz r6,1(r2)
|
| 496 |
|
|
l.or r5,r5,r6
|
| 497 |
|
|
l.srli r4,r3,19
|
| 498 |
|
|
l.andi r4,r4,0x7c
|
| 499 |
|
|
l.add r4,r4,r1
|
| 500 |
|
|
l.j align_end
|
| 501 |
|
|
l.sw 0(r4),r5
|
| 502 |
|
|
|
| 503 |
|
|
lws: l.lbs r5,0(r2)
|
| 504 |
|
|
l.slli r5,r5,24
|
| 505 |
|
|
l.lbz r6,1(r2)
|
| 506 |
|
|
l.slli r6,r6,16
|
| 507 |
|
|
l.or r5,r5,r6
|
| 508 |
|
|
l.lbz r6,2(r2)
|
| 509 |
|
|
l.slli r6,r6,8
|
| 510 |
|
|
l.or r5,r5,r6
|
| 511 |
|
|
l.lbz r6,3(r2)
|
| 512 |
|
|
l.or r5,r5,r6
|
| 513 |
|
|
l.srli r4,r3,19
|
| 514 |
|
|
l.andi r4,r4,0x7c
|
| 515 |
|
|
l.add r4,r4,r1
|
| 516 |
|
|
l.j align_end
|
| 517 |
|
|
l.sw 0(r4),r5
|
| 518 |
|
|
|
| 519 |
|
|
lwz: l.lbz r5,0(r2)
|
| 520 |
|
|
l.slli r5,r5,24
|
| 521 |
|
|
l.lbz r6,1(r2)
|
| 522 |
|
|
l.slli r6,r6,16
|
| 523 |
|
|
l.or r5,r5,r6
|
| 524 |
|
|
l.lbz r6,2(r2)
|
| 525 |
|
|
l.slli r6,r6,8
|
| 526 |
|
|
l.or r5,r5,r6
|
| 527 |
|
|
l.lbz r6,3(r2)
|
| 528 |
|
|
l.or r5,r5,r6
|
| 529 |
|
|
l.srli r4,r3,19
|
| 530 |
|
|
l.andi r4,r4,0x7c
|
| 531 |
|
|
l.add r4,r4,r1
|
| 532 |
|
|
l.j align_end
|
| 533 |
|
|
l.sw 0(r4),r5
|
| 534 |
|
|
|
| 535 |
|
|
sh:
|
| 536 |
|
|
l.srli r4,r3,9
|
| 537 |
|
|
l.andi r4,r4,0x7c
|
| 538 |
|
|
l.add r4,r4,r1
|
| 539 |
|
|
l.lwz r5,0(r4)
|
| 540 |
|
|
l.sb 1(r2),r5
|
| 541 |
|
|
l.srli r5,r5,8
|
| 542 |
|
|
l.j align_end
|
| 543 |
|
|
l.sb 0(r2),r5
|
| 544 |
|
|
|
| 545 |
|
|
sw:
|
| 546 |
|
|
l.srli r4,r3,9
|
| 547 |
|
|
l.andi r4,r4,0x7c
|
| 548 |
|
|
l.add r4,r4,r1
|
| 549 |
|
|
l.lwz r5,0(r4)
|
| 550 |
|
|
l.sb 3(r2),r5
|
| 551 |
|
|
l.srli r5,r5,8
|
| 552 |
|
|
l.sb 2(r2),r5
|
| 553 |
|
|
l.srli r5,r5,8
|
| 554 |
|
|
l.sb 1(r2),r5
|
| 555 |
|
|
l.srli r5,r5,8
|
| 556 |
|
|
l.j align_end
|
| 557 |
|
|
l.sb 0(r2),r5
|
| 558 |
|
|
|
| 559 |
|
|
align_end:
|
| 560 |
|
|
l.j _ret_from_intr
|
| 561 |
|
|
l.nop
|
| 562 |
|
|
#endif
|
| 563 |
|
|
|
| 564 |
|
|
/* ---[ 0x700: Illegal insn exception ]---------------------------------- */
|
| 565 |
|
|
|
| 566 |
|
|
UNHANDLED_EXCEPTION(_vector_0x700,0x700)
|
| 567 |
|
|
|
| 568 |
|
|
/* ---[ 0x800: External interrupt exception ]---------------------------- */
|
| 569 |
|
|
|
| 570 |
|
|
EXCEPTION_ENTRY(_external_irq_handler)
|
| 571 |
|
|
#ifdef CONFIG_OR32_ESR_EXCEPTION_BUG_CHECK
|
| 572 |
|
|
l.lwz r4,SR(r1) // were interrupts enabled ?
|
| 573 |
|
|
l.andi r4,r4,SPR_SR_IEE
|
| 574 |
|
|
l.sfeqi r4,0
|
| 575 |
|
|
l.bnf 1f // ext irq enabled, all ok.
|
| 576 |
|
|
l.nop
|
| 577 |
|
|
|
| 578 |
|
|
l.addi r1,r1,-0x8
|
| 579 |
|
|
LOAD_SYMBOL_2_GPR(r3,42f)
|
| 580 |
|
|
l.sw 0x0(r1),r3
|
| 581 |
|
|
l.jal _printk
|
| 582 |
|
|
l.sw 0x4(r1),r4
|
| 583 |
|
|
l.addi r1,r1,0x8
|
| 584 |
|
|
|
| 585 |
|
|
.section .rodata, "a"
|
| 586 |
|
|
42:
|
| 587 |
|
|
.string "\n\rESR interrupt bug: in _external_irq_handler (ESR %x)\n\r"
|
| 588 |
|
|
.align 4
|
| 589 |
|
|
.previous
|
| 590 |
|
|
|
| 591 |
|
|
l.ori r4,r4,SPR_SR_IEE // fix the bug
|
| 592 |
|
|
// l.sw SR(r1),r4
|
| 593 |
|
|
1:
|
| 594 |
|
|
#endif
|
| 595 |
|
|
l.addi r3,r1,0
|
| 596 |
|
|
LOAD_SYMBOL_2_GPR(r8,_do_IRQ)
|
| 597 |
|
|
l.jalr r8
|
| 598 |
|
|
l.nop
|
| 599 |
|
|
l.j _ret_from_intr
|
| 600 |
|
|
l.nop
|
| 601 |
|
|
|
| 602 |
|
|
/* ---[ 0x900: DTLB miss exception ]------------------------------------- */
|
| 603 |
|
|
|
| 604 |
|
|
|
| 605 |
|
|
/* ---[ 0xa00: ITLB miss exception ]------------------------------------- */
|
| 606 |
|
|
|
| 607 |
|
|
|
| 608 |
|
|
/* ---[ 0xb00: Range exception ]----------------------------------------- */
|
| 609 |
|
|
|
| 610 |
|
|
UNHANDLED_EXCEPTION(_vector_0xb00,0xb00)
|
| 611 |
|
|
|
| 612 |
|
|
/* ---[ 0xc00: Syscall exception ]--------------------------------------- */
|
| 613 |
|
|
|
| 614 |
|
|
EXCEPTION_ENTRY(_sys_call_handler)
|
| 615 |
|
|
/* r3 is not tainted by EXCEPTION_HANDLE() */
|
| 616 |
|
|
|
| 617 |
|
|
/* r4 holds the EEAR address of the fault, load the original r4 */
|
| 618 |
|
|
l.lwz r4,GPR4(r1)
|
| 619 |
|
|
|
| 620 |
|
|
l.lwz r30,TI_FLAGS(r10)
|
| 621 |
|
|
l.andi r30,r30,_TIF_SYSCALL_TRACE
|
| 622 |
|
|
l.sfne r30,r0
|
| 623 |
|
|
l.bf _syscall_trace_entry
|
| 624 |
|
|
l.nop
|
| 625 |
|
|
|
| 626 |
|
|
/* check that userspace didn't try to fool us with
|
| 627 |
|
|
* syscall number greater then __NR_syscall.
|
| 628 |
|
|
*/
|
| 629 |
|
|
l.sfgeui r11,NR_syscalls
|
| 630 |
|
|
l.bf _syscall_badsys
|
| 631 |
|
|
l.nop
|
| 632 |
|
|
|
| 633 |
|
|
/* WTF: no other arch has this?? */
|
| 634 |
|
|
ENABLE_INTERRUPTS(r9) // enable interrupts, r9 is temp
|
| 635 |
|
|
|
| 636 |
|
|
_syscall_call:
|
| 637 |
|
|
l.movhi r30,hi(_sys_call_table)
|
| 638 |
|
|
l.ori r30,r30,lo(_sys_call_table)
|
| 639 |
|
|
l.slli r11,r11,2
|
| 640 |
|
|
l.add r30,r30,r11
|
| 641 |
|
|
l.lwz r30,0(r30)
|
| 642 |
|
|
|
| 643 |
|
|
l.jalr r30
|
| 644 |
|
|
l.addi r8,r1,0 // regs pointer
|
| 645 |
|
|
|
| 646 |
|
|
l.sw GPR11(r1),r11 // save return value
|
| 647 |
|
|
l.sw RESULT(r1),r11 // save result
|
| 648 |
|
|
|
| 649 |
|
|
_syscall_exit:
|
| 650 |
|
|
DISABLE_INTERRUPTS(r3,r4)
|
| 651 |
|
|
l.lwz r30,TI_FLAGS(r10)
|
| 652 |
|
|
l.andi r3,r30,_TIF_ALLWORK_MASK
|
| 653 |
|
|
l.sfne r3,r0
|
| 654 |
|
|
l.bf _syscall_exit_work
|
| 655 |
|
|
l.nop
|
| 656 |
|
|
|
| 657 |
|
|
l.j _restore_all
|
| 658 |
|
|
l.nop
|
| 659 |
|
|
|
| 660 |
|
|
_syscall_trace_entry:
|
| 661 |
|
|
l.sw SYSCALLNO(r1),r11
|
| 662 |
|
|
l.addi r3,r1,0
|
| 663 |
|
|
l.addi r4,r0,0
|
| 664 |
|
|
l.jal _do_syscall_trace
|
| 665 |
|
|
l.nop
|
| 666 |
|
|
|
| 667 |
|
|
/* Restore arguments */
|
| 668 |
|
|
l.lwz r11,SYSCALLNO(r1)
|
| 669 |
|
|
l.lwz r3,GPR3(r1)
|
| 670 |
|
|
l.lwz r4,GPR4(r1)
|
| 671 |
|
|
l.lwz r5,GPR5(r1)
|
| 672 |
|
|
l.lwz r6,GPR6(r1)
|
| 673 |
|
|
l.lwz r7,GPR7(r1)
|
| 674 |
|
|
l.sfgeui r11,NR_syscalls
|
| 675 |
|
|
l.bnf _syscall_call
|
| 676 |
|
|
l.nop
|
| 677 |
|
|
|
| 678 |
|
|
l.addi r30,r0,-ENOSYS
|
| 679 |
|
|
l.sw GPR11(r1),r30
|
| 680 |
|
|
l.sw RESULT(r1),r30
|
| 681 |
|
|
|
| 682 |
|
|
l.j _syscall_exit
|
| 683 |
|
|
l.nop
|
| 684 |
|
|
|
| 685 |
|
|
_syscall_badsys:
|
| 686 |
|
|
/* Just return -ENOSYS */
|
| 687 |
|
|
l.addi r30,r0,-ENOSYS
|
| 688 |
|
|
l.sw RESULT(r1),r30
|
| 689 |
|
|
l.sw GPR11(r1),r30
|
| 690 |
|
|
l.j _resume_userspace
|
| 691 |
|
|
l.nop
|
| 692 |
|
|
|
| 693 |
|
|
_syscall_exit_work:
|
| 694 |
|
|
/* r30 holds TI_flags */
|
| 695 |
|
|
l.andi r3,r30,_TIF_SYSCALL_TRACE|_TIF_SINGLESTEP
|
| 696 |
|
|
l.sfne r3,r0
|
| 697 |
|
|
l.bnf _work_pending
|
| 698 |
|
|
l.nop
|
| 699 |
|
|
|
| 700 |
|
|
ENABLE_INTERRUPTS(r3)
|
| 701 |
|
|
|
| 702 |
|
|
l.addi r3,r1,0
|
| 703 |
|
|
l.addi r4,r0,1
|
| 704 |
|
|
l.jal _do_syscall_trace
|
| 705 |
|
|
l.nop
|
| 706 |
|
|
|
| 707 |
|
|
l.j _resume_userspace
|
| 708 |
|
|
l.nop
|
| 709 |
|
|
|
| 710 |
|
|
|
| 711 |
|
|
/* ---[ 0xd00: Trap exception ]------------------------------------------ */
|
| 712 |
|
|
|
| 713 |
|
|
UNHANDLED_EXCEPTION(_vector_0xd00,0xd00)
|
| 714 |
|
|
|
| 715 |
|
|
/* ---[ 0xe00: Trap exception ]------------------------------------------ */
|
| 716 |
|
|
|
| 717 |
|
|
UNHANDLED_EXCEPTION(_vector_0xe00,0xe00)
|
| 718 |
|
|
|
| 719 |
|
|
/* ---[ 0xf00: Reserved exception ]-------------------------------------- */
|
| 720 |
|
|
|
| 721 |
|
|
UNHANDLED_EXCEPTION(_vector_0xf00,0xf00)
|
| 722 |
|
|
|
| 723 |
|
|
/* ---[ 0x1000: Reserved exception ]------------------------------------- */
|
| 724 |
|
|
|
| 725 |
|
|
UNHANDLED_EXCEPTION(_vector_0x1000,0x1000)
|
| 726 |
|
|
|
| 727 |
|
|
/* ---[ 0x1100: Reserved exception ]------------------------------------- */
|
| 728 |
|
|
|
| 729 |
|
|
UNHANDLED_EXCEPTION(_vector_0x1100,0x1100)
|
| 730 |
|
|
|
| 731 |
|
|
/* ---[ 0x1200: Reserved exception ]------------------------------------- */
|
| 732 |
|
|
|
| 733 |
|
|
UNHANDLED_EXCEPTION(_vector_0x1200,0x1200)
|
| 734 |
|
|
|
| 735 |
|
|
/* ---[ 0x1300: Reserved exception ]------------------------------------- */
|
| 736 |
|
|
|
| 737 |
|
|
UNHANDLED_EXCEPTION(_vector_0x1300,0x1300)
|
| 738 |
|
|
|
| 739 |
|
|
/* ---[ 0x1400: Reserved exception ]------------------------------------- */
|
| 740 |
|
|
|
| 741 |
|
|
UNHANDLED_EXCEPTION(_vector_0x1400,0x1400)
|
| 742 |
|
|
|
| 743 |
|
|
/* ---[ 0x1500: Reserved exception ]------------------------------------- */
|
| 744 |
|
|
|
| 745 |
|
|
UNHANDLED_EXCEPTION(_vector_0x1500,0x1500)
|
| 746 |
|
|
|
| 747 |
|
|
/* ---[ 0x1600: Reserved exception ]------------------------------------- */
|
| 748 |
|
|
|
| 749 |
|
|
UNHANDLED_EXCEPTION(_vector_0x1600,0x1600)
|
| 750 |
|
|
|
| 751 |
|
|
/* ---[ 0x1700: Reserved exception ]------------------------------------- */
|
| 752 |
|
|
|
| 753 |
|
|
UNHANDLED_EXCEPTION(_vector_0x1700,0x1700)
|
| 754 |
|
|
|
| 755 |
|
|
/* ---[ 0x1800: Reserved exception ]------------------------------------- */
|
| 756 |
|
|
|
| 757 |
|
|
UNHANDLED_EXCEPTION(_vector_0x1800,0x1800)
|
| 758 |
|
|
|
| 759 |
|
|
/* ---[ 0x1900: Reserved exception ]------------------------------------- */
|
| 760 |
|
|
|
| 761 |
|
|
UNHANDLED_EXCEPTION(_vector_0x1900,0x1900)
|
| 762 |
|
|
|
| 763 |
|
|
/* ---[ 0x1a00: Reserved exception ]------------------------------------- */
|
| 764 |
|
|
|
| 765 |
|
|
UNHANDLED_EXCEPTION(_vector_0x1a00,0x1a00)
|
| 766 |
|
|
|
| 767 |
|
|
/* ---[ 0x1b00: Reserved exception ]------------------------------------- */
|
| 768 |
|
|
|
| 769 |
|
|
UNHANDLED_EXCEPTION(_vector_0x1b00,0x1b00)
|
| 770 |
|
|
|
| 771 |
|
|
/* ---[ 0x1c00: Reserved exception ]------------------------------------- */
|
| 772 |
|
|
|
| 773 |
|
|
UNHANDLED_EXCEPTION(_vector_0x1c00,0x1c00)
|
| 774 |
|
|
|
| 775 |
|
|
/* ---[ 0x1d00: Reserved exception ]------------------------------------- */
|
| 776 |
|
|
|
| 777 |
|
|
UNHANDLED_EXCEPTION(_vector_0x1d00,0x1d00)
|
| 778 |
|
|
|
| 779 |
|
|
/* ---[ 0x1e00: Reserved exception ]------------------------------------- */
|
| 780 |
|
|
|
| 781 |
|
|
UNHANDLED_EXCEPTION(_vector_0x1e00,0x1e00)
|
| 782 |
|
|
|
| 783 |
|
|
/* ---[ 0x1f00: Reserved exception ]------------------------------------- */
|
| 784 |
|
|
|
| 785 |
|
|
UNHANDLED_EXCEPTION(_vector_0x1f00,0x1f00)
|
| 786 |
|
|
|
| 787 |
|
|
/* ========================================================[ return ] === */
|
| 788 |
|
|
|
| 789 |
|
|
_work_pending:
|
| 790 |
|
|
/*
|
| 791 |
|
|
* if (current_thread_info->flags & _TIF_NEED_RESCHED)
|
| 792 |
|
|
* schedule();
|
| 793 |
|
|
*/
|
| 794 |
|
|
l.lwz r3,TI_FLAGS(r10)
|
| 795 |
|
|
l.andi r3,r3,_TIF_NEED_RESCHED
|
| 796 |
|
|
l.sfeqi r3,0
|
| 797 |
|
|
l.bf work_notifysig
|
| 798 |
|
|
l.nop
|
| 799 |
|
|
|
| 800 |
|
|
work_resched:
|
| 801 |
|
|
l.jal _schedule
|
| 802 |
|
|
l.nop
|
| 803 |
|
|
DISABLE_INTERRUPTS(r3,r4)
|
| 804 |
|
|
|
| 805 |
|
|
l.lwz r3,TI_FLAGS(r10)
|
| 806 |
|
|
l.andi r30,r3,_TIF_WORK_MASK
|
| 807 |
|
|
l.sfnei r30,0
|
| 808 |
|
|
l.bnf _restore_all
|
| 809 |
|
|
l.nop
|
| 810 |
|
|
l.andi r30,r3,_TIF_NEED_RESCHED
|
| 811 |
|
|
l.sfnei r30,0
|
| 812 |
|
|
l.bf work_resched
|
| 813 |
|
|
l.nop
|
| 814 |
|
|
/*
|
| 815 |
|
|
* if (current_thread_info->flags & _TIF_SIGPENDING)
|
| 816 |
|
|
* do_signal(r3,r4);
|
| 817 |
|
|
*/
|
| 818 |
|
|
work_notifysig:
|
| 819 |
|
|
l.lwz r5,TI_FLAGS(r10)
|
| 820 |
|
|
l.andi r5,r5,_TIF_SIGPENDING
|
| 821 |
|
|
l.sfeqi r5,0
|
| 822 |
|
|
l.bf _resume_userspace
|
| 823 |
|
|
l.addi r3,r0,1
|
| 824 |
|
|
l.addi r4,r0,0
|
| 825 |
|
|
l.addi r5,r1,0
|
| 826 |
|
|
l.jal _do_signal
|
| 827 |
|
|
l.nop
|
| 828 |
|
|
l.j _resume_userspace
|
| 829 |
|
|
l.nop
|
| 830 |
|
|
|
| 831 |
|
|
|
| 832 |
|
|
ENTRY(_ret_from_fork)
|
| 833 |
|
|
l.jal _schedule_tail
|
| 834 |
|
|
l.nop
|
| 835 |
|
|
|
| 836 |
|
|
l.j _syscall_exit
|
| 837 |
|
|
l.nop
|
| 838 |
|
|
|
| 839 |
|
|
|
| 840 |
|
|
ENTRY(_restore_all)
|
| 841 |
|
|
// we need to save KSP here too
|
| 842 |
|
|
// or else fork's 'eat' stack space
|
| 843 |
|
|
l.addi r4,r1,INT_FRAME_SIZE
|
| 844 |
|
|
l.sw (TI_KSP)(r10),r4
|
| 845 |
|
|
RESTORE_ALL
|
| 846 |
|
|
|
| 847 |
|
|
ENTRY(_ret_from_intr)
|
| 848 |
|
|
// i386 version:
|
| 849 |
|
|
// GET_CURRENT(%ebx)
|
| 850 |
|
|
|
| 851 |
|
|
ENTRY(_ret_from_exception)
|
| 852 |
|
|
l.lwz r4,SR(r1)
|
| 853 |
|
|
l.andi r3,r4,SPR_SR_SM
|
| 854 |
|
|
l.sfeqi r3,0
|
| 855 |
|
|
l.bnf _restore_all
|
| 856 |
|
|
l.nop
|
| 857 |
|
|
/*
|
| 858 |
|
|
* return to usermode
|
| 859 |
|
|
*/
|
| 860 |
|
|
_resume_userspace:
|
| 861 |
|
|
DISABLE_INTERRUPTS(r3,r4)
|
| 862 |
|
|
l.lwz r3,TI_FLAGS(r10)
|
| 863 |
|
|
l.andi r3,r3,_TIF_WORK_MASK
|
| 864 |
|
|
l.sfeqi r3,0
|
| 865 |
|
|
l.bnf _work_pending
|
| 866 |
|
|
l.nop
|
| 867 |
|
|
l.j _restore_all
|
| 868 |
|
|
l.nop
|
| 869 |
|
|
|
| 870 |
|
|
/* ========================================================[ switch ] === */
|
| 871 |
|
|
|
| 872 |
|
|
/*
|
| 873 |
|
|
* This routine switches between two different tasks. The process
|
| 874 |
|
|
* state of one is saved on its kernel stack. Then the state
|
| 875 |
|
|
* of the other is restored from its kernel stack. The memory
|
| 876 |
|
|
* management hardware is updated to the second process's state.
|
| 877 |
|
|
* Finally, we can return to the second process, via the 'return'.
|
| 878 |
|
|
*
|
| 879 |
|
|
* Note: there are two ways to get to the "going out" portion
|
| 880 |
|
|
* of this code; either by coming in via the entry (_switch)
|
| 881 |
|
|
* or via "fork" which must set up an environment equivalent
|
| 882 |
|
|
* to the "_switch" path. If you change this (or in particular, the
|
| 883 |
|
|
* SAVE_REGS macro), you'll have to change the fork code also.
|
| 884 |
|
|
*/
|
| 885 |
|
|
|
| 886 |
|
|
|
| 887 |
|
|
/* __switch MUST never lay on page boundry, cause it runs from
|
| 888 |
|
|
* effective addresses and beeing interrupted by iTLB miss would kill it.
|
| 889 |
|
|
* dTLB miss seams to never accour in the bad place since data accesses
|
| 890 |
|
|
* are from task structures which are always page aligned.
|
| 891 |
|
|
*
|
| 892 |
|
|
* The problem happens in RESTORE_ALL_NO_R11 where we first set the EPCR
|
| 893 |
|
|
* register, then load the previous register values and only at the end call
|
| 894 |
|
|
* the l.rfe instruction. If get TLB miss in beetwen the EPCR register gets
|
| 895 |
|
|
* garbled and we end up calling l.rfe with the wrong EPCR. (same probably
|
| 896 |
|
|
* holds for ESR)
|
| 897 |
|
|
*
|
| 898 |
|
|
* To avoid this problems it is sufficient to align __switch to
|
| 899 |
|
|
* some nice round number smaller than it's size...
|
| 900 |
|
|
*/
|
| 901 |
|
|
|
| 902 |
|
|
.align 0x400
|
| 903 |
|
|
ENTRY(__switch)
|
| 904 |
|
|
l.sw (GPR3-INT_FRAME_SIZE)(r1),r3
|
| 905 |
|
|
l.mtspr r0,r9,SPR_EPCR_BASE /* Link register to EPCR */
|
| 906 |
|
|
l.mfspr r3,r0,SPR_SR /* From SR to ESR */
|
| 907 |
|
|
l.mtspr r0,r3,SPR_ESR_BASE
|
| 908 |
|
|
l.addi r11,r10,0 /* Save old 'current' to 'last' return value*/
|
| 909 |
|
|
l.lwz r3,(GPR3-INT_FRAME_SIZE)(r1)
|
| 910 |
|
|
PUSH_PT_REGS_NO_TRANS
|
| 911 |
|
|
/* DEBUGING HELP */
|
| 912 |
|
|
l.or r21,r1,r0
|
| 913 |
|
|
l.or r22,r2,r0
|
| 914 |
|
|
l.or r23,r3,r0
|
| 915 |
|
|
l.or r24,r4,r0
|
| 916 |
|
|
/* END DEBUGGING HELP */
|
| 917 |
|
|
l.sw TI_KSP(r3),r1 /* Save old stack pointer */
|
| 918 |
|
|
l.lwz r1,TI_KSP(r4) /* Load new stack pointer */
|
| 919 |
|
|
l.addi r10,r5,0 /* set current (r10) to new */
|
| 920 |
|
|
RESTORE_ALL_NO_R11
|
| 921 |
|
|
|
| 922 |
|
|
/* =================================================[ syscall table ] === */
|
| 923 |
|
|
|
| 924 |
|
|
.data
|
| 925 |
|
|
.align 4
|
| 926 |
|
|
ENTRY(_sys_call_table)
|
| 927 |
|
|
.long _sys_ni_syscall /* 0 - old "setup()" system call */
|
| 928 |
|
|
.long _sys_exit
|
| 929 |
|
|
.long _sys_fork
|
| 930 |
|
|
.long _sys_read
|
| 931 |
|
|
.long _sys_write
|
| 932 |
|
|
.long _sys_open /* 5 */
|
| 933 |
|
|
.long _sys_close
|
| 934 |
|
|
.long _sys_waitpid
|
| 935 |
|
|
.long _sys_creat
|
| 936 |
|
|
.long _sys_link
|
| 937 |
|
|
.long _sys_unlink /* 10 */
|
| 938 |
|
|
.long _sys_execve
|
| 939 |
|
|
.long _sys_chdir
|
| 940 |
|
|
.long _sys_time
|
| 941 |
|
|
.long _sys_mknod
|
| 942 |
|
|
.long _sys_chmod /* 15 */
|
| 943 |
|
|
.long _sys_lchown
|
| 944 |
|
|
.long _sys_ni_syscall /* old break syscall holder */
|
| 945 |
|
|
.long _sys_stat
|
| 946 |
|
|
.long _sys_lseek
|
| 947 |
|
|
.long _sys_getpid /* 20 */
|
| 948 |
|
|
.long _sys_mount
|
| 949 |
|
|
.long _sys_oldumount
|
| 950 |
|
|
.long _sys_setuid
|
| 951 |
|
|
.long _sys_getuid
|
| 952 |
|
|
.long _sys_stime /* 25 */
|
| 953 |
|
|
.long _sys_ptrace
|
| 954 |
|
|
.long _sys_alarm
|
| 955 |
|
|
.long _sys_fstat
|
| 956 |
|
|
.long _sys_pause
|
| 957 |
|
|
.long _sys_utime /* 30 */
|
| 958 |
|
|
.long _sys_ni_syscall /* old stty syscall holder */
|
| 959 |
|
|
.long _sys_ni_syscall /* old gtty syscall holder */
|
| 960 |
|
|
.long _sys_access
|
| 961 |
|
|
.long _sys_nice
|
| 962 |
|
|
.long _sys_ni_syscall /* 35: old ftime syscall holder */
|
| 963 |
|
|
.long _sys_sync
|
| 964 |
|
|
.long _sys_kill
|
| 965 |
|
|
.long _sys_rename
|
| 966 |
|
|
.long _sys_mkdir
|
| 967 |
|
|
.long _sys_rmdir /* 40 */
|
| 968 |
|
|
.long _sys_dup
|
| 969 |
|
|
.long _sys_pipe
|
| 970 |
|
|
.long _sys_times
|
| 971 |
|
|
.long _sys_ni_syscall /* old prof syscall holder */
|
| 972 |
|
|
.long _sys_brk /* 45 */
|
| 973 |
|
|
.long _sys_setgid
|
| 974 |
|
|
.long _sys_getgid
|
| 975 |
|
|
.long _sys_signal
|
| 976 |
|
|
.long _sys_geteuid
|
| 977 |
|
|
.long _sys_getegid /* 50 */
|
| 978 |
|
|
.long _sys_acct
|
| 979 |
|
|
.long _sys_umount /* recycled never used phys() */
|
| 980 |
|
|
.long _sys_ni_syscall /* old lock syscall holder */
|
| 981 |
|
|
.long _sys_ioctl
|
| 982 |
|
|
.long _sys_fcntl /* 55 */
|
| 983 |
|
|
.long _sys_ni_syscall /* old mpx syscall holder */
|
| 984 |
|
|
.long _sys_setpgid
|
| 985 |
|
|
.long _sys_ni_syscall /* old ulimit syscall holder */
|
| 986 |
|
|
.long _sys_ni_syscall /* old _sys_olduname holder */
|
| 987 |
|
|
.long _sys_umask /* 60 */
|
| 988 |
|
|
.long _sys_chroot
|
| 989 |
|
|
.long _sys_ustat
|
| 990 |
|
|
.long _sys_dup2
|
| 991 |
|
|
.long _sys_getppid
|
| 992 |
|
|
.long _sys_getpgrp /* 65 */
|
| 993 |
|
|
.long _sys_setsid
|
| 994 |
|
|
.long _sys_sigaction
|
| 995 |
|
|
.long _sys_sgetmask
|
| 996 |
|
|
.long _sys_ssetmask
|
| 997 |
|
|
.long _sys_setreuid /* 70 */
|
| 998 |
|
|
.long _sys_setregid
|
| 999 |
|
|
.long _sys_sigsuspend
|
| 1000 |
|
|
.long _sys_sigpending
|
| 1001 |
|
|
.long _sys_sethostname
|
| 1002 |
|
|
.long _sys_setrlimit /* 75 */
|
| 1003 |
|
|
.long _sys_old_getrlimit
|
| 1004 |
|
|
.long _sys_getrusage
|
| 1005 |
|
|
.long _sys_gettimeofday
|
| 1006 |
|
|
.long _sys_settimeofday
|
| 1007 |
|
|
.long _sys_getgroups /* 80 */
|
| 1008 |
|
|
.long _sys_setgroups
|
| 1009 |
|
|
.long _sys_select /* was old_select */
|
| 1010 |
|
|
.long _sys_symlink
|
| 1011 |
|
|
.long _sys_lstat
|
| 1012 |
|
|
.long _sys_readlink /* 85 */
|
| 1013 |
|
|
.long _sys_uselib
|
| 1014 |
|
|
.long _sys_swapon
|
| 1015 |
|
|
.long _sys_reboot
|
| 1016 |
|
|
.long _old_readdir
|
| 1017 |
|
|
.long _old_mmap /* 90 */
|
| 1018 |
|
|
.long _sys_munmap
|
| 1019 |
|
|
.long _sys_truncate
|
| 1020 |
|
|
.long _sys_ftruncate
|
| 1021 |
|
|
.long _sys_fchmod
|
| 1022 |
|
|
.long _sys_fchown /* 95 */
|
| 1023 |
|
|
.long _sys_getpriority
|
| 1024 |
|
|
.long _sys_setpriority
|
| 1025 |
|
|
.long _sys_ni_syscall /* old profil syscall holder */
|
| 1026 |
|
|
.long _sys_statfs
|
| 1027 |
|
|
.long _sys_fstatfs /* 100 */
|
| 1028 |
|
|
.long _sys_ni_syscall /* _sys_ioperm in i386 */
|
| 1029 |
|
|
.long _sys_socketcall
|
| 1030 |
|
|
.long _sys_syslog
|
| 1031 |
|
|
.long _sys_setitimer
|
| 1032 |
|
|
.long _sys_getitimer /* 105 */
|
| 1033 |
|
|
.long _sys_newstat
|
| 1034 |
|
|
.long _sys_newlstat
|
| 1035 |
|
|
.long _sys_newfstat
|
| 1036 |
|
|
.long _sys_ni_syscall /* old _sys_uname holder */
|
| 1037 |
|
|
.long _sys_ni_syscall /* 110 */ /* _sys_iopl in i386 */
|
| 1038 |
|
|
.long _sys_vhangup
|
| 1039 |
|
|
.long _sys_ni_syscall /* old 'idle' syscall */
|
| 1040 |
|
|
.long _sys_ni_syscall /* vm86 in i386 */
|
| 1041 |
|
|
.long _sys_wait4
|
| 1042 |
|
|
.long _sys_swapoff /* 115 */
|
| 1043 |
|
|
.long _sys_sysinfo
|
| 1044 |
|
|
.long _sys_ipc
|
| 1045 |
|
|
.long _sys_fsync
|
| 1046 |
|
|
.long _sys_sigreturn
|
| 1047 |
|
|
.long _sys_clone /* 120 */
|
| 1048 |
|
|
.long _sys_setdomainname
|
| 1049 |
|
|
.long _sys_newuname
|
| 1050 |
|
|
.long _sys_ni_syscall
|
| 1051 |
|
|
.long _sys_adjtimex
|
| 1052 |
|
|
.long _sys_mprotect /* 125 */
|
| 1053 |
|
|
.long _sys_sigprocmask
|
| 1054 |
|
|
.long _sys_ni_syscall /* old "create_module" */
|
| 1055 |
|
|
.long _sys_init_module
|
| 1056 |
|
|
.long _sys_delete_module
|
| 1057 |
|
|
.long _sys_ni_syscall /* 130: old "get_kernel_syms" */
|
| 1058 |
|
|
.long _sys_quotactl
|
| 1059 |
|
|
.long _sys_getpgid
|
| 1060 |
|
|
.long _sys_fchdir
|
| 1061 |
|
|
.long _sys_bdflush
|
| 1062 |
|
|
.long _sys_sysfs /* 135 */
|
| 1063 |
|
|
.long _sys_personality
|
| 1064 |
|
|
.long _sys_ni_syscall /* reserved for afs_syscall */
|
| 1065 |
|
|
.long _sys_setfsuid
|
| 1066 |
|
|
.long _sys_setfsgid
|
| 1067 |
|
|
.long _sys_llseek /* 140 */
|
| 1068 |
|
|
.long _sys_getdents
|
| 1069 |
|
|
.long _sys_select
|
| 1070 |
|
|
.long _sys_flock
|
| 1071 |
|
|
.long _sys_msync
|
| 1072 |
|
|
.long _sys_readv /* 145 */
|
| 1073 |
|
|
.long _sys_writev
|
| 1074 |
|
|
.long _sys_getsid
|
| 1075 |
|
|
.long _sys_fdatasync
|
| 1076 |
|
|
.long _sys_sysctl
|
| 1077 |
|
|
.long _sys_mlock /* 150 */
|
| 1078 |
|
|
.long _sys_munlock
|
| 1079 |
|
|
.long _sys_mlockall
|
| 1080 |
|
|
.long _sys_munlockall
|
| 1081 |
|
|
.long _sys_sched_setparam
|
| 1082 |
|
|
.long _sys_sched_getparam /* 155 */
|
| 1083 |
|
|
.long _sys_sched_setscheduler
|
| 1084 |
|
|
.long _sys_sched_getscheduler
|
| 1085 |
|
|
.long _sys_sched_yield
|
| 1086 |
|
|
.long _sys_sched_get_priority_max
|
| 1087 |
|
|
.long _sys_sched_get_priority_min /* 160 */
|
| 1088 |
|
|
.long _sys_sched_rr_get_interval
|
| 1089 |
|
|
.long _sys_nanosleep
|
| 1090 |
|
|
.long _sys_mremap
|
| 1091 |
|
|
.long _sys_setresuid
|
| 1092 |
|
|
.long _sys_getresuid /* 165 */
|
| 1093 |
|
|
.long _sys_ni_syscall /* old sys_query_module */
|
| 1094 |
|
|
.long _sys_poll
|
| 1095 |
|
|
.long _sys_nfsservctl
|
| 1096 |
|
|
.long _sys_setresgid
|
| 1097 |
|
|
.long _sys_getresgid /* 170 */
|
| 1098 |
|
|
.long _sys_prctl
|
| 1099 |
|
|
.long _sys_rt_sigreturn
|
| 1100 |
|
|
.long _sys_rt_sigaction
|
| 1101 |
|
|
.long _sys_rt_sigprocmask
|
| 1102 |
|
|
.long _sys_rt_sigpending /* 175 */
|
| 1103 |
|
|
.long _sys_rt_sigtimedwait
|
| 1104 |
|
|
.long _sys_rt_sigqueueinfo
|
| 1105 |
|
|
.long _sys_rt_sigsuspend
|
| 1106 |
|
|
.long _sys_pread64
|
| 1107 |
|
|
.long _sys_pwrite64 /* 180 */
|
| 1108 |
|
|
.long _sys_chown
|
| 1109 |
|
|
.long _sys_getcwd
|
| 1110 |
|
|
.long _sys_capget
|
| 1111 |
|
|
.long _sys_capset
|
| 1112 |
|
|
.long _sys_sigaltstack /* 185 */
|
| 1113 |
|
|
.long _sys_sendfile
|
| 1114 |
|
|
.long _sys_ni_syscall /* streams1 */
|
| 1115 |
|
|
.long _sys_ni_syscall /* streams2 */
|
| 1116 |
|
|
.long _sys_vfork
|
| 1117 |
|
|
.long _sys_getrlimit /* 190 */
|
| 1118 |
|
|
.long _sys_readahead
|
| 1119 |
|
|
.long _sys_mmap2
|
| 1120 |
|
|
.long _sys_truncate64
|
| 1121 |
|
|
.long _sys_ftruncate64
|
| 1122 |
|
|
.long _sys_stat64 /* 195 */
|
| 1123 |
|
|
.long _sys_lstat64
|
| 1124 |
|
|
.long _sys_fstat64
|
| 1125 |
|
|
.long _sys_ni_syscall /* _sys_pciconfig_read */
|
| 1126 |
|
|
.long _sys_ni_syscall /* _sys_pciconfig_write */
|
| 1127 |
|
|
.long _sys_ni_syscall /* 200 _sys_pciconfig_iobase */
|
| 1128 |
|
|
.long _sys_ni_syscall /* 201 - reserved - MacOnLinux */
|
| 1129 |
|
|
.long _sys_getdents64
|
| 1130 |
|
|
.long _sys_pivot_root
|
| 1131 |
|
|
.long _sys_fcntl64
|
| 1132 |
|
|
.long _sys_madvise /* 205 */
|
| 1133 |
|
|
.long _sys_mincore
|
| 1134 |
|
|
.long _sys_gettid
|
| 1135 |
|
|
.long _sys_tkill
|
| 1136 |
|
|
.long _sys_setxattr
|
| 1137 |
|
|
.long _sys_lsetxattr /* 210 */
|
| 1138 |
|
|
.long _sys_fsetxattr
|
| 1139 |
|
|
.long _sys_getxattr
|
| 1140 |
|
|
.long _sys_lgetxattr
|
| 1141 |
|
|
.long _sys_fgetxattr
|
| 1142 |
|
|
.long _sys_listxattr /* 215 */
|
| 1143 |
|
|
.long _sys_llistxattr
|
| 1144 |
|
|
.long _sys_flistxattr
|
| 1145 |
|
|
.long _sys_removexattr
|
| 1146 |
|
|
.long _sys_lremovexattr
|
| 1147 |
|
|
.long _sys_fremovexattr /* 220 */
|
| 1148 |
|
|
.long _sys_ni_syscall /* reserved for sys_futex */
|
| 1149 |
|
|
.long _sys_ni_syscall /* reserved for sys_sched_setaffinity */
|
| 1150 |
|
|
.long _sys_ni_syscall /* reserved for sys_sched_getaffinity */
|
| 1151 |
|
|
.long _sys_ni_syscall /* reserved for sys_security */
|
| 1152 |
|
|
.long _sys_ni_syscall /* 225 reserved for Tux */
|
| 1153 |
|
|
.long _sys_ni_syscall /* reserved for sys_sendfile64 */
|
| 1154 |
|
|
.long _sys_ni_syscall /* reserved for sys_io_setup */
|
| 1155 |
|
|
.long _sys_ni_syscall /* reserved for sys_io_destroy */
|
| 1156 |
|
|
.long _sys_ni_syscall /* reserved for sys_io_getevents */
|
| 1157 |
|
|
.long _sys_ni_syscall /* 230 reserved for sys_io_submit */
|
| 1158 |
|
|
.long _sys_ni_syscall /* reserved for sys_io_cancel */
|
| 1159 |
|
|
|
| 1160 |
|
|
/*
|
| 1161 |
|
|
* NOTE!! This doesn't have to be exact - we just have
|
| 1162 |
|
|
* to make sure we have _enough_ of the "sys_ni_syscall"
|
| 1163 |
|
|
* entries. Don't panic if you notice that this hasn't
|
| 1164 |
|
|
* been shrunk every time we add a new system call.
|
| 1165 |
|
|
*/
|
| 1166 |
|
|
|
| 1167 |
|
|
.rept NR_syscalls-(.-_sys_call_table)/4
|
| 1168 |
|
|
.long _sys_ni_syscall
|
| 1169 |
|
|
.endr
|
| 1170 |
|
|
|
| 1171 |
|
|
/* ============================================================[ EOF ]=== */
|
