| /* entry.S: FR-V entry |
| * |
| * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. |
| * Written by David Howells (dhowells@redhat.com) |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| * |
| * |
| * Entry to the kernel is "interesting": |
| * (1) There are no stack pointers, not even for the kernel |
| * (2) General Registers should not be clobbered |
| * (3) There are no kernel-only data registers |
| * (4) Since all addressing modes are wrt to a General Register, no global |
| * variables can be reached |
| * |
| * We deal with this by declaring that we shall kill GR28 on entering the |
| * kernel from userspace |
| * |
| * However, since break interrupts can interrupt the CPU even when PSR.ET==0, |
| * they can't rely on GR28 to be anything useful, and so need to clobber a |
| * separate register (GR31). Break interrupts are managed in break.S |
| * |
| * GR29 _is_ saved, and holds the current task pointer globally |
| * |
| */ |
| |
| #include <linux/sys.h> |
| #include <linux/config.h> |
| #include <linux/linkage.h> |
| #include <asm/thread_info.h> |
| #include <asm/setup.h> |
| #include <asm/segment.h> |
| #include <asm/ptrace.h> |
| #include <asm/errno.h> |
| #include <asm/cache.h> |
| #include <asm/spr-regs.h> |
| |
| #define nr_syscalls ((syscall_table_size)/4) |
| |
| .text |
| .balign 4 |
| |
| .macro LEDS val |
| # sethi.p %hi(0xe1200004),gr30 |
| # setlo %lo(0xe1200004),gr30 |
| # setlos #~\val,gr31 |
| # st gr31,@(gr30,gr0) |
| # sethi.p %hi(0xffc00100),gr30 |
| # setlo %lo(0xffc00100),gr30 |
| # sth gr0,@(gr30,gr0) |
| # membar |
| .endm |
| |
| .macro LEDS32 |
| # not gr31,gr31 |
| # sethi.p %hi(0xe1200004),gr30 |
| # setlo %lo(0xe1200004),gr30 |
| # st.p gr31,@(gr30,gr0) |
| # srli gr31,#16,gr31 |
| # sethi.p %hi(0xffc00100),gr30 |
| # setlo %lo(0xffc00100),gr30 |
| # sth gr31,@(gr30,gr0) |
| # membar |
| .endm |
| |
| ############################################################################### |
| # |
| # entry point for External interrupts received whilst executing userspace code |
| # |
| ############################################################################### |
| .globl __entry_uspace_external_interrupt |
| .type __entry_uspace_external_interrupt,@function |
| __entry_uspace_external_interrupt: |
| LEDS 0x6200 |
| sethi.p %hi(__kernel_frame0_ptr),gr28 |
| setlo %lo(__kernel_frame0_ptr),gr28 |
| ldi @(gr28,#0),gr28 |
| |
| # handle h/w single-step through exceptions |
| sti gr0,@(gr28,#REG__STATUS) |
| |
| .globl __entry_uspace_external_interrupt_reentry |
| __entry_uspace_external_interrupt_reentry: |
| LEDS 0x6201 |
| |
| setlos #REG__END,gr30 |
| dcpl gr28,gr30,#0 |
| |
| # finish building the exception frame |
| sti sp, @(gr28,#REG_SP) |
| stdi gr2, @(gr28,#REG_GR(2)) |
| stdi gr4, @(gr28,#REG_GR(4)) |
| stdi gr6, @(gr28,#REG_GR(6)) |
| stdi gr8, @(gr28,#REG_GR(8)) |
| stdi gr10,@(gr28,#REG_GR(10)) |
| stdi gr12,@(gr28,#REG_GR(12)) |
| stdi gr14,@(gr28,#REG_GR(14)) |
| stdi gr16,@(gr28,#REG_GR(16)) |
| stdi gr18,@(gr28,#REG_GR(18)) |
| stdi gr20,@(gr28,#REG_GR(20)) |
| stdi gr22,@(gr28,#REG_GR(22)) |
| stdi gr24,@(gr28,#REG_GR(24)) |
| stdi gr26,@(gr28,#REG_GR(26)) |
| sti gr0, @(gr28,#REG_GR(28)) |
| sti gr29,@(gr28,#REG_GR(29)) |
| stdi.p gr30,@(gr28,#REG_GR(30)) |
| |
| # set up the kernel stack pointer |
| ori gr28,0,sp |
| |
| movsg tbr ,gr20 |
| movsg psr ,gr22 |
| movsg pcsr,gr21 |
| movsg isr ,gr23 |
| movsg ccr ,gr24 |
| movsg cccr,gr25 |
| movsg lr ,gr26 |
| movsg lcr ,gr27 |
| |
| setlos.p #-1,gr4 |
| andi gr22,#PSR_PS,gr5 /* try to rebuild original PSR value */ |
| andi.p gr22,#~(PSR_PS|PSR_S),gr6 |
| slli gr5,#1,gr5 |
| or gr6,gr5,gr5 |
| andi gr5,#~PSR_ET,gr5 |
| |
| sti gr20,@(gr28,#REG_TBR) |
| sti gr21,@(gr28,#REG_PC) |
| sti gr5 ,@(gr28,#REG_PSR) |
| sti gr23,@(gr28,#REG_ISR) |
| stdi gr24,@(gr28,#REG_CCR) |
| stdi gr26,@(gr28,#REG_LR) |
| sti gr4 ,@(gr28,#REG_SYSCALLNO) |
| |
| movsg iacc0h,gr4 |
| movsg iacc0l,gr5 |
| stdi gr4,@(gr28,#REG_IACC0) |
| |
| movsg gner0,gr4 |
| movsg gner1,gr5 |
| stdi gr4,@(gr28,#REG_GNER0) |
| |
| # set up kernel global registers |
| sethi.p %hi(__kernel_current_task),gr5 |
| setlo %lo(__kernel_current_task),gr5 |
| sethi.p %hi(_gp),gr16 |
| setlo %lo(_gp),gr16 |
| ldi @(gr5,#0),gr29 |
| ldi.p @(gr29,#4),gr15 ; __current_thread_info = current->thread_info |
| |
| # make sure we (the kernel) get div-zero and misalignment exceptions |
| setlos #ISR_EDE|ISR_DTT_DIVBYZERO|ISR_EMAM_EXCEPTION,gr5 |
| movgs gr5,isr |
| |
| # switch to the kernel trap table |
| sethi.p %hi(__entry_kerneltrap_table),gr6 |
| setlo %lo(__entry_kerneltrap_table),gr6 |
| movgs gr6,tbr |
| |
| # set the return address |
| sethi.p %hi(__entry_return_from_user_interrupt),gr4 |
| setlo %lo(__entry_return_from_user_interrupt),gr4 |
| movgs gr4,lr |
| |
| # raise the minimum interrupt priority to 15 (NMI only) and enable exceptions |
| movsg psr,gr4 |
| |
| ori gr4,#PSR_PIL_14,gr4 |
| movgs gr4,psr |
| ori gr4,#PSR_PIL_14|PSR_ET,gr4 |
| movgs gr4,psr |
| |
| LEDS 0x6202 |
| bra do_IRQ |
| |
| .size __entry_uspace_external_interrupt,.-__entry_uspace_external_interrupt |
| |
| ############################################################################### |
| # |
| # entry point for External interrupts received whilst executing kernel code |
| # - on arriving here, the following registers should already be set up: |
| # GR15 - current thread_info struct pointer |
| # GR16 - kernel GP-REL pointer |
| # GR29 - current task struct pointer |
| # TBR - kernel trap vector table |
| # ISR - kernel's preferred integer controls |
| # |
| ############################################################################### |
| .globl __entry_kernel_external_interrupt |
| .type __entry_kernel_external_interrupt,@function |
| __entry_kernel_external_interrupt: |
| LEDS 0x6210 |
| |
| sub sp,gr15,gr31 |
| LEDS32 |
| |
| # set up the stack pointer |
| or.p sp,gr0,gr30 |
| subi sp,#REG__END,sp |
| sti gr30,@(sp,#REG_SP) |
| |
| # handle h/w single-step through exceptions |
| sti gr0,@(sp,#REG__STATUS) |
| |
| .globl __entry_kernel_external_interrupt_reentry |
| __entry_kernel_external_interrupt_reentry: |
| LEDS 0x6211 |
| |
| # set up the exception frame |
| setlos #REG__END,gr30 |
| dcpl sp,gr30,#0 |
| |
| sti.p gr28,@(sp,#REG_GR(28)) |
| ori sp,0,gr28 |
| |
| # finish building the exception frame |
| stdi gr2,@(gr28,#REG_GR(2)) |
| stdi gr4,@(gr28,#REG_GR(4)) |
| stdi gr6,@(gr28,#REG_GR(6)) |
| stdi gr8,@(gr28,#REG_GR(8)) |
| stdi gr10,@(gr28,#REG_GR(10)) |
| stdi gr12,@(gr28,#REG_GR(12)) |
| stdi gr14,@(gr28,#REG_GR(14)) |
| stdi gr16,@(gr28,#REG_GR(16)) |
| stdi gr18,@(gr28,#REG_GR(18)) |
| stdi gr20,@(gr28,#REG_GR(20)) |
| stdi gr22,@(gr28,#REG_GR(22)) |
| stdi gr24,@(gr28,#REG_GR(24)) |
| stdi gr26,@(gr28,#REG_GR(26)) |
| sti gr29,@(gr28,#REG_GR(29)) |
| stdi gr30,@(gr28,#REG_GR(30)) |
| |
| movsg tbr ,gr20 |
| movsg psr ,gr22 |
| movsg pcsr,gr21 |
| movsg isr ,gr23 |
| movsg ccr ,gr24 |
| movsg cccr,gr25 |
| movsg lr ,gr26 |
| movsg lcr ,gr27 |
| |
| setlos.p #-1,gr4 |
| andi gr22,#PSR_PS,gr5 /* try to rebuild original PSR value */ |
| andi.p gr22,#~(PSR_PS|PSR_S),gr6 |
| slli gr5,#1,gr5 |
| or gr6,gr5,gr5 |
| andi.p gr5,#~PSR_ET,gr5 |
| |
| # set CCCR.CC3 to Undefined to abort atomic-modify completion inside the kernel |
| # - for an explanation of how it works, see: Documentation/fujitsu/frv/atomic-ops.txt |
| andi gr25,#~0xc0,gr25 |
| |
| sti gr20,@(gr28,#REG_TBR) |
| sti gr21,@(gr28,#REG_PC) |
| sti gr5 ,@(gr28,#REG_PSR) |
| sti gr23,@(gr28,#REG_ISR) |
| stdi gr24,@(gr28,#REG_CCR) |
| stdi gr26,@(gr28,#REG_LR) |
| sti gr4 ,@(gr28,#REG_SYSCALLNO) |
| |
| movsg iacc0h,gr4 |
| movsg iacc0l,gr5 |
| stdi gr4,@(gr28,#REG_IACC0) |
| |
| movsg gner0,gr4 |
| movsg gner1,gr5 |
| stdi gr4,@(gr28,#REG_GNER0) |
| |
| # set the return address |
| sethi.p %hi(__entry_return_from_kernel_interrupt),gr4 |
| setlo %lo(__entry_return_from_kernel_interrupt),gr4 |
| movgs gr4,lr |
| |
| # clear power-saving mode flags |
| movsg hsr0,gr4 |
| andi gr4,#~HSR0_PDM,gr4 |
| movgs gr4,hsr0 |
| |
| # raise the minimum interrupt priority to 15 (NMI only) and enable exceptions |
| movsg psr,gr4 |
| ori gr4,#PSR_PIL_14,gr4 |
| movgs gr4,psr |
| ori gr4,#PSR_ET,gr4 |
| movgs gr4,psr |
| |
| LEDS 0x6212 |
| bra do_IRQ |
| |
| .size __entry_kernel_external_interrupt,.-__entry_kernel_external_interrupt |
| |
| |
| ############################################################################### |
| # |
| # entry point for Software and Progam interrupts generated whilst executing userspace code |
| # |
| ############################################################################### |
| .globl __entry_uspace_softprog_interrupt |
| .type __entry_uspace_softprog_interrupt,@function |
| .globl __entry_uspace_handle_mmu_fault |
| __entry_uspace_softprog_interrupt: |
| LEDS 0x6000 |
| #ifdef CONFIG_MMU |
| movsg ear0,gr28 |
| __entry_uspace_handle_mmu_fault: |
| movgs gr28,scr2 |
| #endif |
| sethi.p %hi(__kernel_frame0_ptr),gr28 |
| setlo %lo(__kernel_frame0_ptr),gr28 |
| ldi @(gr28,#0),gr28 |
| |
| # handle h/w single-step through exceptions |
| sti gr0,@(gr28,#REG__STATUS) |
| |
| .globl __entry_uspace_softprog_interrupt_reentry |
| __entry_uspace_softprog_interrupt_reentry: |
| LEDS 0x6001 |
| |
| setlos #REG__END,gr30 |
| dcpl gr28,gr30,#0 |
| |
| # set up the kernel stack pointer |
| sti.p sp,@(gr28,#REG_SP) |
| ori gr28,0,sp |
| sti gr0,@(gr28,#REG_GR(28)) |
| |
| stdi gr20,@(gr28,#REG_GR(20)) |
| stdi gr22,@(gr28,#REG_GR(22)) |
| |
| movsg tbr,gr20 |
| movsg pcsr,gr21 |
| movsg psr,gr22 |
| |
| sethi.p %hi(__entry_return_from_user_exception),gr23 |
| setlo %lo(__entry_return_from_user_exception),gr23 |
| bra __entry_common |
| |
| .size __entry_uspace_softprog_interrupt,.-__entry_uspace_softprog_interrupt |
| |
| # single-stepping was disabled on entry to a TLB handler that then faulted |
| #ifdef CONFIG_MMU |
| .globl __entry_uspace_handle_mmu_fault_sstep |
| __entry_uspace_handle_mmu_fault_sstep: |
| movgs gr28,scr2 |
| sethi.p %hi(__kernel_frame0_ptr),gr28 |
| setlo %lo(__kernel_frame0_ptr),gr28 |
| ldi @(gr28,#0),gr28 |
| |
| # flag single-step re-enablement |
| sti gr0,@(gr28,#REG__STATUS) |
| bra __entry_uspace_softprog_interrupt_reentry |
| #endif |
| |
| |
| ############################################################################### |
| # |
| # entry point for Software and Progam interrupts generated whilst executing kernel code |
| # |
| ############################################################################### |
| .globl __entry_kernel_softprog_interrupt |
| .type __entry_kernel_softprog_interrupt,@function |
| __entry_kernel_softprog_interrupt: |
| LEDS 0x6004 |
| |
| #ifdef CONFIG_MMU |
| movsg ear0,gr30 |
| movgs gr30,scr2 |
| #endif |
| |
| .globl __entry_kernel_handle_mmu_fault |
| __entry_kernel_handle_mmu_fault: |
| # set up the stack pointer |
| subi sp,#REG__END,sp |
| sti sp,@(sp,#REG_SP) |
| sti sp,@(sp,#REG_SP-4) |
| andi sp,#~7,sp |
| |
| # handle h/w single-step through exceptions |
| sti gr0,@(sp,#REG__STATUS) |
| |
| .globl __entry_kernel_softprog_interrupt_reentry |
| __entry_kernel_softprog_interrupt_reentry: |
| LEDS 0x6005 |
| |
| setlos #REG__END,gr30 |
| dcpl sp,gr30,#0 |
| |
| # set up the exception frame |
| sti.p gr28,@(sp,#REG_GR(28)) |
| ori sp,0,gr28 |
| |
| stdi gr20,@(gr28,#REG_GR(20)) |
| stdi gr22,@(gr28,#REG_GR(22)) |
| |
| ldi @(sp,#REG_SP),gr22 /* reconstruct the old SP */ |
| addi gr22,#REG__END,gr22 |
| sti gr22,@(sp,#REG_SP) |
| |
| # set CCCR.CC3 to Undefined to abort atomic-modify completion inside the kernel |
| # - for an explanation of how it works, see: Documentation/fujitsu/frv/atomic-ops.txt |
| movsg cccr,gr20 |
| andi gr20,#~0xc0,gr20 |
| movgs gr20,cccr |
| |
| movsg tbr,gr20 |
| movsg pcsr,gr21 |
| movsg psr,gr22 |
| |
| sethi.p %hi(__entry_return_from_kernel_exception),gr23 |
| setlo %lo(__entry_return_from_kernel_exception),gr23 |
| bra __entry_common |
| |
| .size __entry_kernel_softprog_interrupt,.-__entry_kernel_softprog_interrupt |
| |
| # single-stepping was disabled on entry to a TLB handler that then faulted |
| #ifdef CONFIG_MMU |
| .globl __entry_kernel_handle_mmu_fault_sstep |
| __entry_kernel_handle_mmu_fault_sstep: |
| # set up the stack pointer |
| subi sp,#REG__END,sp |
| sti sp,@(sp,#REG_SP) |
| sti sp,@(sp,#REG_SP-4) |
| andi sp,#~7,sp |
| |
| # flag single-step re-enablement |
| sethi #REG__STATUS_STEP,gr30 |
| sti gr30,@(sp,#REG__STATUS) |
| bra __entry_kernel_softprog_interrupt_reentry |
| #endif |
| |
| |
| ############################################################################### |
| # |
| # the rest of the kernel entry point code |
| # - on arriving here, the following registers should be set up: |
| # GR1 - kernel stack pointer |
| # GR7 - syscall number (trap 0 only) |
| # GR8-13 - syscall args (trap 0 only) |
| # GR20 - saved TBR |
| # GR21 - saved PC |
| # GR22 - saved PSR |
| # GR23 - return handler address |
| # GR28 - exception frame on stack |
| # SCR2 - saved EAR0 where applicable (clobbered by ICI & ICEF insns on FR451) |
| # PSR - PSR.S 1, PSR.ET 0 |
| # |
| ############################################################################### |
| .globl __entry_common |
| .type __entry_common,@function |
| __entry_common: |
| LEDS 0x6008 |
| |
| # finish building the exception frame |
| stdi gr2,@(gr28,#REG_GR(2)) |
| stdi gr4,@(gr28,#REG_GR(4)) |
| stdi gr6,@(gr28,#REG_GR(6)) |
| stdi gr8,@(gr28,#REG_GR(8)) |
| stdi gr10,@(gr28,#REG_GR(10)) |
| stdi gr12,@(gr28,#REG_GR(12)) |
| stdi gr14,@(gr28,#REG_GR(14)) |
| stdi gr16,@(gr28,#REG_GR(16)) |
| stdi gr18,@(gr28,#REG_GR(18)) |
| stdi gr24,@(gr28,#REG_GR(24)) |
| stdi gr26,@(gr28,#REG_GR(26)) |
| sti gr29,@(gr28,#REG_GR(29)) |
| stdi gr30,@(gr28,#REG_GR(30)) |
| |
| movsg lcr ,gr27 |
| movsg lr ,gr26 |
| movgs gr23,lr |
| movsg cccr,gr25 |
| movsg ccr ,gr24 |
| movsg isr ,gr23 |
| |
| setlos.p #-1,gr4 |
| andi gr22,#PSR_PS,gr5 /* try to rebuild original PSR value */ |
| andi.p gr22,#~(PSR_PS|PSR_S),gr6 |
| slli gr5,#1,gr5 |
| or gr6,gr5,gr5 |
| andi gr5,#~PSR_ET,gr5 |
| |
| sti gr20,@(gr28,#REG_TBR) |
| sti gr21,@(gr28,#REG_PC) |
| sti gr5 ,@(gr28,#REG_PSR) |
| sti gr23,@(gr28,#REG_ISR) |
| stdi gr24,@(gr28,#REG_CCR) |
| stdi gr26,@(gr28,#REG_LR) |
| sti gr4 ,@(gr28,#REG_SYSCALLNO) |
| |
| movsg iacc0h,gr4 |
| movsg iacc0l,gr5 |
| stdi gr4,@(gr28,#REG_IACC0) |
| |
| movsg gner0,gr4 |
| movsg gner1,gr5 |
| stdi gr4,@(gr28,#REG_GNER0) |
| |
| # set up kernel global registers |
| sethi.p %hi(__kernel_current_task),gr5 |
| setlo %lo(__kernel_current_task),gr5 |
| sethi.p %hi(_gp),gr16 |
| setlo %lo(_gp),gr16 |
| ldi @(gr5,#0),gr29 |
| ldi @(gr29,#4),gr15 ; __current_thread_info = current->thread_info |
| |
| # switch to the kernel trap table |
| sethi.p %hi(__entry_kerneltrap_table),gr6 |
| setlo %lo(__entry_kerneltrap_table),gr6 |
| movgs gr6,tbr |
| |
| # make sure we (the kernel) get div-zero and misalignment exceptions |
| setlos #ISR_EDE|ISR_DTT_DIVBYZERO|ISR_EMAM_EXCEPTION,gr5 |
| movgs gr5,isr |
| |
| # clear power-saving mode flags |
| movsg hsr0,gr4 |
| andi gr4,#~HSR0_PDM,gr4 |
| movgs gr4,hsr0 |
| |
| # multiplex again using old TBR as a guide |
| setlos.p #TBR_TT,gr3 |
| sethi %hi(__entry_vector_table),gr6 |
| and.p gr20,gr3,gr5 |
| setlo %lo(__entry_vector_table),gr6 |
| srli gr5,#2,gr5 |
| ld @(gr5,gr6),gr5 |
| |
| LEDS 0x6009 |
| jmpl @(gr5,gr0) |
| |
| |
| .size __entry_common,.-__entry_common |
| |
| ############################################################################### |
| # |
| # handle instruction MMU fault |
| # |
| ############################################################################### |
| #ifdef CONFIG_MMU |
| .globl __entry_insn_mmu_fault |
| __entry_insn_mmu_fault: |
| LEDS 0x6010 |
| setlos #0,gr8 |
| movsg esr0,gr9 |
| movsg scr2,gr10 |
| |
| # now that we've accessed the exception regs, we can enable exceptions |
| movsg psr,gr4 |
| ori gr4,#PSR_ET,gr4 |
| movgs gr4,psr |
| |
| sethi.p %hi(do_page_fault),gr5 |
| setlo %lo(do_page_fault),gr5 |
| jmpl @(gr5,gr0) ; call do_page_fault(0,esr0,ear0) |
| #endif |
| |
| |
| ############################################################################### |
| # |
| # handle instruction access error |
| # |
| ############################################################################### |
| .globl __entry_insn_access_error |
| __entry_insn_access_error: |
| LEDS 0x6011 |
| sethi.p %hi(insn_access_error),gr5 |
| setlo %lo(insn_access_error),gr5 |
| movsg esfr1,gr8 |
| movsg epcr0,gr9 |
| movsg esr0,gr10 |
| |
| # now that we've accessed the exception regs, we can enable exceptions |
| movsg psr,gr4 |
| ori gr4,#PSR_ET,gr4 |
| movgs gr4,psr |
| jmpl @(gr5,gr0) ; call insn_access_error(esfr1,epcr0,esr0) |
| |
| ############################################################################### |
| # |
| # handle various instructions of dubious legality |
| # |
| ############################################################################### |
| .globl __entry_unsupported_trap |
| .globl __entry_illegal_instruction |
| .globl __entry_privileged_instruction |
| .globl __entry_debug_exception |
| __entry_unsupported_trap: |
| subi gr21,#4,gr21 |
| sti gr21,@(gr28,#REG_PC) |
| __entry_illegal_instruction: |
| __entry_privileged_instruction: |
| __entry_debug_exception: |
| LEDS 0x6012 |
| sethi.p %hi(illegal_instruction),gr5 |
| setlo %lo(illegal_instruction),gr5 |
| movsg esfr1,gr8 |
| movsg epcr0,gr9 |
| movsg esr0,gr10 |
| |
| # now that we've accessed the exception regs, we can enable exceptions |
| movsg psr,gr4 |
| ori gr4,#PSR_ET,gr4 |
| movgs gr4,psr |
| jmpl @(gr5,gr0) ; call ill_insn(esfr1,epcr0,esr0) |
| |
| ############################################################################### |
| # |
| # handle media exception |
| # |
| ############################################################################### |
| .globl __entry_media_exception |
| __entry_media_exception: |
| LEDS 0x6013 |
| sethi.p %hi(media_exception),gr5 |
| setlo %lo(media_exception),gr5 |
| movsg msr0,gr8 |
| movsg msr1,gr9 |
| |
| # now that we've accessed the exception regs, we can enable exceptions |
| movsg psr,gr4 |
| ori gr4,#PSR_ET,gr4 |
| movgs gr4,psr |
| jmpl @(gr5,gr0) ; call media_excep(msr0,msr1) |
| |
| ############################################################################### |
| # |
| # handle data MMU fault |
| # handle data DAT fault (write-protect exception) |
| # |
| ############################################################################### |
| #ifdef CONFIG_MMU |
| .globl __entry_data_mmu_fault |
| __entry_data_mmu_fault: |
| .globl __entry_data_dat_fault |
| __entry_data_dat_fault: |
| LEDS 0x6014 |
| setlos #1,gr8 |
| movsg esr0,gr9 |
| movsg scr2,gr10 ; saved EAR0 |
| |
| # now that we've accessed the exception regs, we can enable exceptions |
| movsg psr,gr4 |
| ori gr4,#PSR_ET,gr4 |
| movgs gr4,psr |
| |
| sethi.p %hi(do_page_fault),gr5 |
| setlo %lo(do_page_fault),gr5 |
| jmpl @(gr5,gr0) ; call do_page_fault(1,esr0,ear0) |
| #endif |
| |
| ############################################################################### |
| # |
| # handle data and instruction access exceptions |
| # |
| ############################################################################### |
| .globl __entry_insn_access_exception |
| .globl __entry_data_access_exception |
| __entry_insn_access_exception: |
| __entry_data_access_exception: |
| LEDS 0x6016 |
| sethi.p %hi(memory_access_exception),gr5 |
| setlo %lo(memory_access_exception),gr5 |
| movsg esr0,gr8 |
| movsg scr2,gr9 ; saved EAR0 |
| movsg epcr0,gr10 |
| |
| # now that we've accessed the exception regs, we can enable exceptions |
| movsg psr,gr4 |
| ori gr4,#PSR_ET,gr4 |
| movgs gr4,psr |
| jmpl @(gr5,gr0) ; call memory_access_error(esr0,ear0,epcr0) |
| |
| ############################################################################### |
| # |
| # handle data access error |
| # |
| ############################################################################### |
| .globl __entry_data_access_error |
| __entry_data_access_error: |
| LEDS 0x6016 |
| sethi.p %hi(data_access_error),gr5 |
| setlo %lo(data_access_error),gr5 |
| movsg esfr1,gr8 |
| movsg esr15,gr9 |
| movsg ear15,gr10 |
| |
| # now that we've accessed the exception regs, we can enable exceptions |
| movsg psr,gr4 |
| ori gr4,#PSR_ET,gr4 |
| movgs gr4,psr |
| jmpl @(gr5,gr0) ; call data_access_error(esfr1,esr15,ear15) |
| |
| ############################################################################### |
| # |
| # handle data store error |
| # |
| ############################################################################### |
| .globl __entry_data_store_error |
| __entry_data_store_error: |
| LEDS 0x6017 |
| sethi.p %hi(data_store_error),gr5 |
| setlo %lo(data_store_error),gr5 |
| movsg esfr1,gr8 |
| movsg esr14,gr9 |
| |
| # now that we've accessed the exception regs, we can enable exceptions |
| movsg psr,gr4 |
| ori gr4,#PSR_ET,gr4 |
| movgs gr4,psr |
| jmpl @(gr5,gr0) ; call data_store_error(esfr1,esr14) |
| |
| ############################################################################### |
| # |
| # handle division exception |
| # |
| ############################################################################### |
| .globl __entry_division_exception |
| __entry_division_exception: |
| LEDS 0x6018 |
| sethi.p %hi(division_exception),gr5 |
| setlo %lo(division_exception),gr5 |
| movsg esfr1,gr8 |
| movsg esr0,gr9 |
| movsg isr,gr10 |
| |
| # now that we've accessed the exception regs, we can enable exceptions |
| movsg psr,gr4 |
| ori gr4,#PSR_ET,gr4 |
| movgs gr4,psr |
| jmpl @(gr5,gr0) ; call div_excep(esfr1,esr0,isr) |
| |
| ############################################################################### |
| # |
| # handle compound exception |
| # |
| ############################################################################### |
| .globl __entry_compound_exception |
| __entry_compound_exception: |
| LEDS 0x6019 |
| sethi.p %hi(compound_exception),gr5 |
| setlo %lo(compound_exception),gr5 |
| movsg esfr1,gr8 |
| movsg esr0,gr9 |
| movsg esr14,gr10 |
| movsg esr15,gr11 |
| movsg msr0,gr12 |
| movsg msr1,gr13 |
| |
| # now that we've accessed the exception regs, we can enable exceptions |
| movsg psr,gr4 |
| ori gr4,#PSR_ET,gr4 |
| movgs gr4,psr |
| jmpl @(gr5,gr0) ; call comp_excep(esfr1,esr0,esr14,esr15,msr0,msr1) |
| |
| ############################################################################### |
| # |
| # handle interrupts and NMIs |
| # |
| ############################################################################### |
| .globl __entry_do_IRQ |
| __entry_do_IRQ: |
| LEDS 0x6020 |
| |
| # we can enable exceptions |
| movsg psr,gr4 |
| ori gr4,#PSR_ET,gr4 |
| movgs gr4,psr |
| bra do_IRQ |
| |
| .globl __entry_do_NMI |
| __entry_do_NMI: |
| LEDS 0x6021 |
| |
| # we can enable exceptions |
| movsg psr,gr4 |
| ori gr4,#PSR_ET,gr4 |
| movgs gr4,psr |
| bra do_NMI |
| |
| ############################################################################### |
| # |
| # the return path for a newly forked child process |
| # - __switch_to() saved the old current pointer in GR8 for us |
| # |
| ############################################################################### |
| .globl ret_from_fork |
| ret_from_fork: |
| LEDS 0x6100 |
| call schedule_tail |
| |
| # fork & co. return 0 to child |
| setlos.p #0,gr8 |
| bra __syscall_exit |
| |
| ################################################################################################### |
| # |
| # Return to user mode is not as complex as all this looks, |
| # but we want the default path for a system call return to |
| # go as quickly as possible which is why some of this is |
| # less clear than it otherwise should be. |
| # |
| ################################################################################################### |
| .balign L1_CACHE_BYTES |
| .globl system_call |
| system_call: |
| LEDS 0x6101 |
| movsg psr,gr4 ; enable exceptions |
| ori gr4,#PSR_ET,gr4 |
| movgs gr4,psr |
| |
| sti gr7,@(gr28,#REG_SYSCALLNO) |
| sti.p gr8,@(gr28,#REG_ORIG_GR8) |
| |
| subicc gr7,#nr_syscalls,gr0,icc0 |
| bnc icc0,#0,__syscall_badsys |
| |
| ldi @(gr15,#TI_FLAGS),gr4 |
| ori gr4,#_TIF_SYSCALL_TRACE,gr4 |
| andicc gr4,#_TIF_SYSCALL_TRACE,gr0,icc0 |
| bne icc0,#0,__syscall_trace_entry |
| |
| __syscall_call: |
| slli.p gr7,#2,gr7 |
| sethi %hi(sys_call_table),gr5 |
| setlo %lo(sys_call_table),gr5 |
| ld @(gr5,gr7),gr4 |
| calll @(gr4,gr0) |
| |
| |
| ############################################################################### |
| # |
| # return to interrupted process |
| # |
| ############################################################################### |
| __syscall_exit: |
| LEDS 0x6300 |
| |
| sti gr8,@(gr28,#REG_GR(8)) ; save return value |
| |
| # rebuild saved psr - execve will change it for init/main.c |
| ldi @(gr28,#REG_PSR),gr22 |
| srli gr22,#1,gr5 |
| andi.p gr22,#~PSR_PS,gr22 |
| andi gr5,#PSR_PS,gr5 |
| or gr5,gr22,gr22 |
| ori gr22,#PSR_S,gr22 |
| |
| # keep current PSR in GR23 |
| movsg psr,gr23 |
| |
| # make sure we don't miss an interrupt setting need_resched or sigpending between |
| # sampling and the RETT |
| ori gr23,#PSR_PIL_14,gr23 |
| movgs gr23,psr |
| |
| ldi @(gr15,#TI_FLAGS),gr4 |
| sethi.p %hi(_TIF_ALLWORK_MASK),gr5 |
| setlo %lo(_TIF_ALLWORK_MASK),gr5 |
| andcc gr4,gr5,gr0,icc0 |
| bne icc0,#0,__syscall_exit_work |
| |
| # restore all registers and return |
| __entry_return_direct: |
| LEDS 0x6301 |
| |
| andi gr22,#~PSR_ET,gr22 |
| movgs gr22,psr |
| |
| ldi @(gr28,#REG_ISR),gr23 |
| lddi @(gr28,#REG_CCR),gr24 |
| lddi @(gr28,#REG_LR) ,gr26 |
| ldi @(gr28,#REG_PC) ,gr21 |
| ldi @(gr28,#REG_TBR),gr20 |
| |
| movgs gr20,tbr |
| movgs gr21,pcsr |
| movgs gr23,isr |
| movgs gr24,ccr |
| movgs gr25,cccr |
| movgs gr26,lr |
| movgs gr27,lcr |
| |
| lddi @(gr28,#REG_GNER0),gr4 |
| movgs gr4,gner0 |
| movgs gr5,gner1 |
| |
| lddi @(gr28,#REG_IACC0),gr4 |
| movgs gr4,iacc0h |
| movgs gr5,iacc0l |
| |
| lddi @(gr28,#REG_GR(4)) ,gr4 |
| lddi @(gr28,#REG_GR(6)) ,gr6 |
| lddi @(gr28,#REG_GR(8)) ,gr8 |
| lddi @(gr28,#REG_GR(10)),gr10 |
| lddi @(gr28,#REG_GR(12)),gr12 |
| lddi @(gr28,#REG_GR(14)),gr14 |
| lddi @(gr28,#REG_GR(16)),gr16 |
| lddi @(gr28,#REG_GR(18)),gr18 |
| lddi @(gr28,#REG_GR(20)),gr20 |
| lddi @(gr28,#REG_GR(22)),gr22 |
| lddi @(gr28,#REG_GR(24)),gr24 |
| lddi @(gr28,#REG_GR(26)),gr26 |
| ldi @(gr28,#REG_GR(29)),gr29 |
| lddi @(gr28,#REG_GR(30)),gr30 |
| |
| # check to see if a debugging return is required |
| LEDS 0x67f0 |
| movsg ccr,gr2 |
| ldi @(gr28,#REG__STATUS),gr3 |
| andicc gr3,#REG__STATUS_STEP,gr0,icc0 |
| bne icc0,#0,__entry_return_singlestep |
| movgs gr2,ccr |
| |
| ldi @(gr28,#REG_SP) ,sp |
| lddi @(gr28,#REG_GR(2)) ,gr2 |
| ldi @(gr28,#REG_GR(28)),gr28 |
| |
| LEDS 0x67fe |
| // movsg pcsr,gr31 |
| // LEDS32 |
| |
| #if 0 |
| # store the current frame in the workram on the FR451 |
| movgs gr28,scr2 |
| sethi.p %hi(0xfe800000),gr28 |
| setlo %lo(0xfe800000),gr28 |
| |
| stdi gr2,@(gr28,#REG_GR(2)) |
| stdi gr4,@(gr28,#REG_GR(4)) |
| stdi gr6,@(gr28,#REG_GR(6)) |
| stdi gr8,@(gr28,#REG_GR(8)) |
| stdi gr10,@(gr28,#REG_GR(10)) |
| stdi gr12,@(gr28,#REG_GR(12)) |
| stdi gr14,@(gr28,#REG_GR(14)) |
| stdi gr16,@(gr28,#REG_GR(16)) |
| stdi gr18,@(gr28,#REG_GR(18)) |
| stdi gr24,@(gr28,#REG_GR(24)) |
| stdi gr26,@(gr28,#REG_GR(26)) |
| sti gr29,@(gr28,#REG_GR(29)) |
| stdi gr30,@(gr28,#REG_GR(30)) |
| |
| movsg tbr ,gr30 |
| sti gr30,@(gr28,#REG_TBR) |
| movsg pcsr,gr30 |
| sti gr30,@(gr28,#REG_PC) |
| movsg psr ,gr30 |
| sti gr30,@(gr28,#REG_PSR) |
| movsg isr ,gr30 |
| sti gr30,@(gr28,#REG_ISR) |
| movsg ccr ,gr30 |
| movsg cccr,gr31 |
| stdi gr30,@(gr28,#REG_CCR) |
| movsg lr ,gr30 |
| movsg lcr ,gr31 |
| stdi gr30,@(gr28,#REG_LR) |
| sti gr0 ,@(gr28,#REG_SYSCALLNO) |
| movsg scr2,gr28 |
| #endif |
| |
| rett #0 |
| |
| # return via break.S |
| __entry_return_singlestep: |
| movgs gr2,ccr |
| lddi @(gr28,#REG_GR(2)) ,gr2 |
| ldi @(gr28,#REG_SP) ,sp |
| ldi @(gr28,#REG_GR(28)),gr28 |
| LEDS 0x67ff |
| break |
| .globl __entry_return_singlestep_breaks_here |
| __entry_return_singlestep_breaks_here: |
| nop |
| |
| |
| ############################################################################### |
| # |
| # return to a process interrupted in kernel space |
| # - we need to consider preemption if that is enabled |
| # |
| ############################################################################### |
| .balign L1_CACHE_BYTES |
| __entry_return_from_kernel_exception: |
| LEDS 0x6302 |
| movsg psr,gr23 |
| ori gr23,#PSR_PIL_14,gr23 |
| movgs gr23,psr |
| bra __entry_return_direct |
| |
| .balign L1_CACHE_BYTES |
| __entry_return_from_kernel_interrupt: |
| LEDS 0x6303 |
| movsg psr,gr23 |
| ori gr23,#PSR_PIL_14,gr23 |
| movgs gr23,psr |
| |
| #ifdef CONFIG_PREEMPT |
| ldi @(gr15,#TI_PRE_COUNT),gr5 |
| subicc gr5,#0,gr0,icc0 |
| beq icc0,#0,__entry_return_direct |
| |
| __entry_preempt_need_resched: |
| ldi @(gr15,#TI_FLAGS),gr4 |
| andicc gr4,#_TIF_NEED_RESCHED,gr0,icc0 |
| beq icc0,#1,__entry_return_direct |
| |
| setlos #PREEMPT_ACTIVE,gr5 |
| sti gr5,@(gr15,#TI_FLAGS) |
| |
| andi gr23,#~PSR_PIL,gr23 |
| movgs gr23,psr |
| |
| call schedule |
| sti gr0,@(gr15,#TI_PRE_COUNT) |
| |
| movsg psr,gr23 |
| ori gr23,#PSR_PIL_14,gr23 |
| movgs gr23,psr |
| bra __entry_preempt_need_resched |
| #else |
| bra __entry_return_direct |
| #endif |
| |
| |
| ############################################################################### |
| # |
| # perform work that needs to be done immediately before resumption |
| # |
| ############################################################################### |
| .globl __entry_return_from_user_exception |
| .balign L1_CACHE_BYTES |
| __entry_return_from_user_exception: |
| LEDS 0x6501 |
| |
| __entry_resume_userspace: |
| # make sure we don't miss an interrupt setting need_resched or sigpending between |
| # sampling and the RETT |
| movsg psr,gr23 |
| ori gr23,#PSR_PIL_14,gr23 |
| movgs gr23,psr |
| |
| __entry_return_from_user_interrupt: |
| LEDS 0x6402 |
| ldi @(gr15,#TI_FLAGS),gr4 |
| sethi.p %hi(_TIF_WORK_MASK),gr5 |
| setlo %lo(_TIF_WORK_MASK),gr5 |
| andcc gr4,gr5,gr0,icc0 |
| beq icc0,#1,__entry_return_direct |
| |
| __entry_work_pending: |
| LEDS 0x6404 |
| andicc gr4,#_TIF_NEED_RESCHED,gr0,icc0 |
| beq icc0,#1,__entry_work_notifysig |
| |
| __entry_work_resched: |
| LEDS 0x6408 |
| movsg psr,gr23 |
| andi gr23,#~PSR_PIL,gr23 |
| movgs gr23,psr |
| call schedule |
| movsg psr,gr23 |
| ori gr23,#PSR_PIL_14,gr23 |
| movgs gr23,psr |
| |
| LEDS 0x6401 |
| ldi @(gr15,#TI_FLAGS),gr4 |
| sethi.p %hi(_TIF_WORK_MASK),gr5 |
| setlo %lo(_TIF_WORK_MASK),gr5 |
| andcc gr4,gr5,gr0,icc0 |
| beq icc0,#1,__entry_return_direct |
| andicc gr4,#_TIF_NEED_RESCHED,gr0,icc0 |
| bne icc0,#1,__entry_work_resched |
| |
| __entry_work_notifysig: |
| LEDS 0x6410 |
| ori.p gr4,#0,gr8 |
| call do_notify_resume |
| bra __entry_return_direct |
| |
| # perform syscall entry tracing |
| __syscall_trace_entry: |
| LEDS 0x6320 |
| setlos.p #0,gr8 |
| call do_syscall_trace |
| |
| ldi @(gr28,#REG_SYSCALLNO),gr7 |
| lddi @(gr28,#REG_GR(8)) ,gr8 |
| lddi @(gr28,#REG_GR(10)),gr10 |
| lddi.p @(gr28,#REG_GR(12)),gr12 |
| |
| subicc gr7,#nr_syscalls,gr0,icc0 |
| bnc icc0,#0,__syscall_badsys |
| bra __syscall_call |
| |
| # perform syscall exit tracing |
| __syscall_exit_work: |
| LEDS 0x6340 |
| andicc gr4,#_TIF_SYSCALL_TRACE,gr0,icc0 |
| beq icc0,#1,__entry_work_pending |
| |
| movsg psr,gr23 |
| andi gr23,#~PSR_PIL,gr23 ; could let do_syscall_trace() call schedule() |
| movgs gr23,psr |
| |
| setlos.p #1,gr8 |
| call do_syscall_trace |
| bra __entry_resume_userspace |
| |
| __syscall_badsys: |
| LEDS 0x6380 |
| setlos #-ENOSYS,gr8 |
| sti gr8,@(gr28,#REG_GR(8)) ; save return value |
| bra __entry_resume_userspace |
| |
| |
| ############################################################################### |
| # |
| # syscall vector table |
| # |
| ############################################################################### |
| #ifdef CONFIG_MMU |
| #define __MMU(X) X |
| #else |
| #define __MMU(X) sys_ni_syscall |
| #endif |
| |
| .section .rodata |
| ALIGN |
| .globl sys_call_table |
| sys_call_table: |
| .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */ |
| .long sys_exit |
| .long sys_fork |
| .long sys_read |
| .long sys_write |
| .long sys_open /* 5 */ |
| .long sys_close |
| .long sys_waitpid |
| .long sys_creat |
| .long sys_link |
| .long sys_unlink /* 10 */ |
| .long sys_execve |
| .long sys_chdir |
| .long sys_time |
| .long sys_mknod |
| .long sys_chmod /* 15 */ |
| .long sys_lchown16 |
| .long sys_ni_syscall /* old break syscall holder */ |
| .long sys_stat |
| .long sys_lseek |
| .long sys_getpid /* 20 */ |
| .long sys_mount |
| .long sys_oldumount |
| .long sys_setuid16 |
| .long sys_getuid16 |
| .long sys_ni_syscall // sys_stime /* 25 */ |
| .long sys_ptrace |
| .long sys_alarm |
| .long sys_fstat |
| .long sys_pause |
| .long sys_utime /* 30 */ |
| .long sys_ni_syscall /* old stty syscall holder */ |
| .long sys_ni_syscall /* old gtty syscall holder */ |
| .long sys_access |
| .long sys_nice |
| .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */ |
| .long sys_sync |
| .long sys_kill |
| .long sys_rename |
| .long sys_mkdir |
| .long sys_rmdir /* 40 */ |
| .long sys_dup |
| .long sys_pipe |
| .long sys_times |
| .long sys_ni_syscall /* old prof syscall holder */ |
| .long sys_brk /* 45 */ |
| .long sys_setgid16 |
| .long sys_getgid16 |
| .long sys_ni_syscall // sys_signal |
| .long sys_geteuid16 |
| .long sys_getegid16 /* 50 */ |
| .long sys_acct |
| .long sys_umount /* recycled never used phys( */ |
| .long sys_ni_syscall /* old lock syscall holder */ |
| .long sys_ioctl |
| .long sys_fcntl /* 55 */ |
| .long sys_ni_syscall /* old mpx syscall holder */ |
| .long sys_setpgid |
| .long sys_ni_syscall /* old ulimit syscall holder */ |
| .long sys_ni_syscall /* old old uname syscall */ |
| .long sys_umask /* 60 */ |
| .long sys_chroot |
| .long sys_ustat |
| .long sys_dup2 |
| .long sys_getppid |
| .long sys_getpgrp /* 65 */ |
| .long sys_setsid |
| .long sys_sigaction |
| .long sys_ni_syscall // sys_sgetmask |
| .long sys_ni_syscall // sys_ssetmask |
| .long sys_setreuid16 /* 70 */ |
| .long sys_setregid16 |
| .long sys_sigsuspend |
| .long sys_ni_syscall // sys_sigpending |
| .long sys_sethostname |
| .long sys_setrlimit /* 75 */ |
| .long sys_ni_syscall // sys_old_getrlimit |
| .long sys_getrusage |
| .long sys_gettimeofday |
| .long sys_settimeofday |
| .long sys_getgroups16 /* 80 */ |
| .long sys_setgroups16 |
| .long sys_ni_syscall /* old_select slot */ |
| .long sys_symlink |
| .long sys_lstat |
| .long sys_readlink /* 85 */ |
| .long sys_uselib |
| .long sys_swapon |
| .long sys_reboot |
| .long sys_ni_syscall // old_readdir |
| .long sys_ni_syscall /* 90 */ /* old_mmap slot */ |
| .long sys_munmap |
| .long sys_truncate |
| .long sys_ftruncate |
| .long sys_fchmod |
| .long sys_fchown16 /* 95 */ |
| .long sys_getpriority |
| .long sys_setpriority |
| .long sys_ni_syscall /* old profil syscall holder */ |
| .long sys_statfs |
| .long sys_fstatfs /* 100 */ |
| .long sys_ni_syscall /* ioperm for i386 */ |
| .long sys_socketcall |
| .long sys_syslog |
| .long sys_setitimer |
| .long sys_getitimer /* 105 */ |
| .long sys_newstat |
| .long sys_newlstat |
| .long sys_newfstat |
| .long sys_ni_syscall /* obsolete olduname( syscall */ |
| .long sys_ni_syscall /* iopl for i386 */ /* 110 */ |
| .long sys_vhangup |
| .long sys_ni_syscall /* obsolete idle( syscall */ |
| .long sys_ni_syscall /* vm86old for i386 */ |
| .long sys_wait4 |
| .long sys_swapoff /* 115 */ |
| .long sys_sysinfo |
| .long sys_ipc |
| .long sys_fsync |
| .long sys_sigreturn |
| .long sys_clone /* 120 */ |
| .long sys_setdomainname |
| .long sys_newuname |
| .long sys_ni_syscall /* old "cacheflush" */ |
| .long sys_adjtimex |
| .long __MMU(sys_mprotect) /* 125 */ |
| .long sys_sigprocmask |
| .long sys_ni_syscall /* old "create_module" */ |
| .long sys_init_module |
| .long sys_delete_module |
| .long sys_ni_syscall /* old "get_kernel_syms" */ |
| .long sys_quotactl |
| .long sys_getpgid |
| .long sys_fchdir |
| .long sys_bdflush |
| .long sys_sysfs /* 135 */ |
| .long sys_personality |
| .long sys_ni_syscall /* for afs_syscall */ |
| .long sys_setfsuid16 |
| .long sys_setfsgid16 |
| .long sys_llseek /* 140 */ |
| .long sys_getdents |
| .long sys_select |
| .long sys_flock |
| .long __MMU(sys_msync) |
| .long sys_readv /* 145 */ |
| .long sys_writev |
| .long sys_getsid |
| .long sys_fdatasync |
| .long sys_sysctl |
| .long __MMU(sys_mlock) /* 150 */ |
| .long __MMU(sys_munlock) |
| .long __MMU(sys_mlockall) |
| .long __MMU(sys_munlockall) |
| .long sys_sched_setparam |
| .long sys_sched_getparam /* 155 */ |
| .long sys_sched_setscheduler |
| .long sys_sched_getscheduler |
| .long sys_sched_yield |
| .long sys_sched_get_priority_max |
| .long sys_sched_get_priority_min /* 160 */ |
| .long sys_sched_rr_get_interval |
| .long sys_nanosleep |
| .long __MMU(sys_mremap) |
| .long sys_setresuid16 |
| .long sys_getresuid16 /* 165 */ |
| .long sys_ni_syscall /* for vm86 */ |
| .long sys_ni_syscall /* Old sys_query_module */ |
| .long sys_poll |
| .long sys_nfsservctl |
| .long sys_setresgid16 /* 170 */ |
| .long sys_getresgid16 |
| .long sys_prctl |
| .long sys_rt_sigreturn |
| .long sys_rt_sigaction |
| .long sys_rt_sigprocmask /* 175 */ |
| .long sys_rt_sigpending |
| .long sys_rt_sigtimedwait |
| .long sys_rt_sigqueueinfo |
| .long sys_rt_sigsuspend |
| .long sys_pread64 /* 180 */ |
| .long sys_pwrite64 |
| .long sys_chown16 |
| .long sys_getcwd |
| .long sys_capget |
| .long sys_capset /* 185 */ |
| .long sys_sigaltstack |
| .long sys_sendfile |
| .long sys_ni_syscall /* streams1 */ |
| .long sys_ni_syscall /* streams2 */ |
| .long sys_vfork /* 190 */ |
| .long sys_getrlimit |
| .long sys_mmap2 |
| .long sys_truncate64 |
| .long sys_ftruncate64 |
| .long sys_stat64 /* 195 */ |
| .long sys_lstat64 |
| .long sys_fstat64 |
| .long sys_lchown |
| .long sys_getuid |
| .long sys_getgid /* 200 */ |
| .long sys_geteuid |
| .long sys_getegid |
| .long sys_setreuid |
| .long sys_setregid |
| .long sys_getgroups /* 205 */ |
| .long sys_setgroups |
| .long sys_fchown |
| .long sys_setresuid |
| .long sys_getresuid |
| .long sys_setresgid /* 210 */ |
| .long sys_getresgid |
| .long sys_chown |
| .long sys_setuid |
| .long sys_setgid |
| .long sys_setfsuid /* 215 */ |
| .long sys_setfsgid |
| .long sys_pivot_root |
| .long __MMU(sys_mincore) |
| .long __MMU(sys_madvise) |
| .long sys_getdents64 /* 220 */ |
| .long sys_fcntl64 |
| .long sys_ni_syscall /* reserved for TUX */ |
| .long sys_ni_syscall /* Reserved for Security */ |
| .long sys_gettid |
| .long sys_readahead /* 225 */ |
| .long sys_setxattr |
| .long sys_lsetxattr |
| .long sys_fsetxattr |
| .long sys_getxattr |
| .long sys_lgetxattr /* 230 */ |
| .long sys_fgetxattr |
| .long sys_listxattr |
| .long sys_llistxattr |
| .long sys_flistxattr |
| .long sys_removexattr /* 235 */ |
| .long sys_lremovexattr |
| .long sys_fremovexattr |
| .long sys_tkill |
| .long sys_sendfile64 |
| .long sys_futex /* 240 */ |
| .long sys_sched_setaffinity |
| .long sys_sched_getaffinity |
| .long sys_ni_syscall //sys_set_thread_area |
| .long sys_ni_syscall //sys_get_thread_area |
| .long sys_io_setup /* 245 */ |
| .long sys_io_destroy |
| .long sys_io_getevents |
| .long sys_io_submit |
| .long sys_io_cancel |
| .long sys_fadvise64 /* 250 */ |
| .long sys_ni_syscall |
| .long sys_exit_group |
| .long sys_lookup_dcookie |
| .long sys_epoll_create |
| .long sys_epoll_ctl /* 255 */ |
| .long sys_epoll_wait |
| .long __MMU(sys_remap_file_pages) |
| .long sys_set_tid_address |
| .long sys_timer_create |
| .long sys_timer_settime /* 260 */ |
| .long sys_timer_gettime |
| .long sys_timer_getoverrun |
| .long sys_timer_delete |
| .long sys_clock_settime |
| .long sys_clock_gettime /* 265 */ |
| .long sys_clock_getres |
| .long sys_clock_nanosleep |
| .long sys_statfs64 |
| .long sys_fstatfs64 |
| .long sys_tgkill /* 270 */ |
| .long sys_utimes |
| .long sys_fadvise64_64 |
| .long sys_ni_syscall /* sys_vserver */ |
| .long sys_mbind |
| .long sys_get_mempolicy |
| .long sys_set_mempolicy |
| .long sys_mq_open |
| .long sys_mq_unlink |
| .long sys_mq_timedsend |
| .long sys_mq_timedreceive /* 280 */ |
| .long sys_mq_notify |
| .long sys_mq_getsetattr |
| .long sys_ni_syscall /* reserved for kexec */ |
| .long sys_waitid |
| .long sys_ni_syscall /* 285 */ /* available */ |
| .long sys_add_key |
| .long sys_request_key |
| .long sys_keyctl |
| .long sys_ni_syscall // sys_vperfctr_open |
| .long sys_ni_syscall // sys_vperfctr_control /* 290 */ |
| .long sys_ni_syscall // sys_vperfctr_unlink |
| .long sys_ni_syscall // sys_vperfctr_iresume |
| .long sys_ni_syscall // sys_vperfctr_read |
| |
| |
| syscall_table_size = (. - sys_call_table) |
