Loading common/system/fcontext.s +4 −0 Original line number Original line Diff line number Diff line Loading @@ -33,6 +33,10 @@ #include "jump_x86_64_sysv_elf_gas.S" #include "jump_x86_64_sysv_elf_gas.S" #include "make_x86_64_sysv_elf_gas.S" #include "make_x86_64_sysv_elf_gas.S" #elif __arm__ #include "jump_arm_aapcs_elf_gas.S" #include "make_arm_aapcs_elf_gas.S" #else #else #error "Missing make_fcontext & jump_fcontext routines for this architecture" #error "Missing make_fcontext & jump_fcontext routines for this architecture" #endif #endif Loading common/system/jump_arm_aapcs_elf_gas.S 0 → 100644 +76 −0 Original line number Original line Diff line number Diff line /* Copyright Oliver Kowalke 2009. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) */ /******************************************************************* * * * ------------------------------------------------------------- * * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | * * ------------------------------------------------------------- * * | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| 0x20| 0x24| * * ------------------------------------------------------------- * * | v1 | v2 | v3 | v4 | v5 | v6 | v7 | v8 | sp | lr | * * ------------------------------------------------------------- * * ------------------------------------------------------------- * * | 10 | | * * ------------------------------------------------------------- * * | 0x28| | * * ------------------------------------------------------------- * * | pc | | * * ------------------------------------------------------------- * * ------------------------------------------------------------- * * | 11 | 12 | | * * ------------------------------------------------------------- * * | 0x2c| 0x30| | * * ------------------------------------------------------------- * * | sp | size| | * * ------------------------------------------------------------- * * ------------------------------------------------------------- * * | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | * * ------------------------------------------------------------- * * | 0x34| 0x38|0x3c| 0x40| 0x44| 0x48| 0x4c| 0x50| 0x54| 0x58 | * * ------------------------------------------------------------- * * | s16 | s17 | s18 | s19 | s20 | s21 | s22 | s23 | s24 | s25 | * * ------------------------------------------------------------- * * ------------------------------------------------------------- * * | 23 | 24 | 25 | 26 | 27 | 28 | | * * ------------------------------------------------------------- * * | 0x5c| 0x60| 0x64| 0x68| 0x6c| 0x70| | * * ------------------------------------------------------------- * * | s26 | s27 | s28 | s29 | s30 | s31 | | * * ------------------------------------------------------------- * * * * *****************************************************************/ .text .globl jump_fcontext .align 2 .type jump_fcontext,%function jump_fcontext: stmia a1, {v1-v8,sp-lr} @ save V1-V8,SP-LR str lr, [a1,#40] @ save LR as PC #if (defined(__VFP_FP__) && !defined(__SOFTFP__)) cmp a4, #0 @ test if fpu env should be preserved beq 1f mov a4, a1 add a4, #52 vstmia a4, {d8-d15} @ save S16-S31 mov a4, a2 add a4, #52 vldmia a4, {d8-d15} @ restore S16-S31 1: #endif mov a1, a3 @ use third arg as return value after jump @ and as first arg in context function ldmia a2, {v1-v8,sp-pc} @ restore v1-V8,SP-PC .size jump_fcontext,.-jump_fcontext /* Mark that we don't need executable stack. */ .section .note.GNU-stack,"",%progbits common/system/make_arm_aapcs_elf_gas.S 0 → 100644 +79 −0 Original line number Original line Diff line number Diff line /* Copyright Oliver Kowalke 2009. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) */ /******************************************************************* * * * ------------------------------------------------------------- * * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | * * ------------------------------------------------------------- * * | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| 0x20| 0x24| * * ------------------------------------------------------------- * * | v1 | v2 | v3 | v4 | v5 | v6 | v7 | v8 | sp | lr | * * ------------------------------------------------------------- * * ------------------------------------------------------------- * * | 10 | | * * ------------------------------------------------------------- * * | 0x28| | * * ------------------------------------------------------------- * * | pc | | * * ------------------------------------------------------------- * * ------------------------------------------------------------- * * | 11 | 12 | | * * ------------------------------------------------------------- * * | 0x2c| 0x30| | * * ------------------------------------------------------------- * * | sp | size| | * * ------------------------------------------------------------- * * ------------------------------------------------------------- * * | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | * * ------------------------------------------------------------- * * | 0x34| 0x38|0x3c| 0x40| 0x44| 0x48| 0x4c| 0x50| 0x54| 0x58 | * * ------------------------------------------------------------- * * | s16 | s17 | s18 | s19 | s20 | s21 | s22 | s23 | s24 | s25 | * * ------------------------------------------------------------- * * ------------------------------------------------------------- * * | 23 | 24 | 25 | 26 | 27 | 28 | | * * ------------------------------------------------------------- * * | 0x5c| 0x60| 0x64| 0x68| 0x6c| 0x70| | * * ------------------------------------------------------------- * * | s26 | s27 | s28 | s29 | s30 | s31 | | * * ------------------------------------------------------------- * * * * *****************************************************************/ .text .globl make_fcontext .align 2 .type make_fcontext,%function make_fcontext: mov a4, a1 @ save address of context stack (base) A4 sub a1, a1, #116 @ reserve space for fcontext_t at top of context stack @ shift address in A1 to lower 16 byte boundary @ == pointer to fcontext_t and address of context stack bic a1, a1, #15 str a4, [a1,#44] @ save address of context stack (base) in fcontext_t str a2, [a1,#48] @ save context stack size in fcontext_t str a3, [a1,#40] @ save address of context function in fcontext_t str a1, [a1,#32] @ save address in A4 as stack pointer for context function adr a2, finish @ compute abs address of label finish str a2, [a1,#36] @ save address of finish as return address for context function @ entered after context function returns bx lr finish: @ SP points to same addras SP on entry of context function mov a1, #0 @ exit code is zero bl _exit@PLT @ exit application .size make_fcontext,.-make_fcontext /* Mark that we don't need executable stack. */ .section .note.GNU-stack,"",%progbits Loading
common/system/fcontext.s +4 −0 Original line number Original line Diff line number Diff line Loading @@ -33,6 +33,10 @@ #include "jump_x86_64_sysv_elf_gas.S" #include "jump_x86_64_sysv_elf_gas.S" #include "make_x86_64_sysv_elf_gas.S" #include "make_x86_64_sysv_elf_gas.S" #elif __arm__ #include "jump_arm_aapcs_elf_gas.S" #include "make_arm_aapcs_elf_gas.S" #else #else #error "Missing make_fcontext & jump_fcontext routines for this architecture" #error "Missing make_fcontext & jump_fcontext routines for this architecture" #endif #endif Loading
common/system/jump_arm_aapcs_elf_gas.S 0 → 100644 +76 −0 Original line number Original line Diff line number Diff line /* Copyright Oliver Kowalke 2009. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) */ /******************************************************************* * * * ------------------------------------------------------------- * * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | * * ------------------------------------------------------------- * * | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| 0x20| 0x24| * * ------------------------------------------------------------- * * | v1 | v2 | v3 | v4 | v5 | v6 | v7 | v8 | sp | lr | * * ------------------------------------------------------------- * * ------------------------------------------------------------- * * | 10 | | * * ------------------------------------------------------------- * * | 0x28| | * * ------------------------------------------------------------- * * | pc | | * * ------------------------------------------------------------- * * ------------------------------------------------------------- * * | 11 | 12 | | * * ------------------------------------------------------------- * * | 0x2c| 0x30| | * * ------------------------------------------------------------- * * | sp | size| | * * ------------------------------------------------------------- * * ------------------------------------------------------------- * * | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | * * ------------------------------------------------------------- * * | 0x34| 0x38|0x3c| 0x40| 0x44| 0x48| 0x4c| 0x50| 0x54| 0x58 | * * ------------------------------------------------------------- * * | s16 | s17 | s18 | s19 | s20 | s21 | s22 | s23 | s24 | s25 | * * ------------------------------------------------------------- * * ------------------------------------------------------------- * * | 23 | 24 | 25 | 26 | 27 | 28 | | * * ------------------------------------------------------------- * * | 0x5c| 0x60| 0x64| 0x68| 0x6c| 0x70| | * * ------------------------------------------------------------- * * | s26 | s27 | s28 | s29 | s30 | s31 | | * * ------------------------------------------------------------- * * * * *****************************************************************/ .text .globl jump_fcontext .align 2 .type jump_fcontext,%function jump_fcontext: stmia a1, {v1-v8,sp-lr} @ save V1-V8,SP-LR str lr, [a1,#40] @ save LR as PC #if (defined(__VFP_FP__) && !defined(__SOFTFP__)) cmp a4, #0 @ test if fpu env should be preserved beq 1f mov a4, a1 add a4, #52 vstmia a4, {d8-d15} @ save S16-S31 mov a4, a2 add a4, #52 vldmia a4, {d8-d15} @ restore S16-S31 1: #endif mov a1, a3 @ use third arg as return value after jump @ and as first arg in context function ldmia a2, {v1-v8,sp-pc} @ restore v1-V8,SP-PC .size jump_fcontext,.-jump_fcontext /* Mark that we don't need executable stack. */ .section .note.GNU-stack,"",%progbits
common/system/make_arm_aapcs_elf_gas.S 0 → 100644 +79 −0 Original line number Original line Diff line number Diff line /* Copyright Oliver Kowalke 2009. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) */ /******************************************************************* * * * ------------------------------------------------------------- * * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | * * ------------------------------------------------------------- * * | 0x0 | 0x4 | 0x8 | 0xc | 0x10| 0x14| 0x18| 0x1c| 0x20| 0x24| * * ------------------------------------------------------------- * * | v1 | v2 | v3 | v4 | v5 | v6 | v7 | v8 | sp | lr | * * ------------------------------------------------------------- * * ------------------------------------------------------------- * * | 10 | | * * ------------------------------------------------------------- * * | 0x28| | * * ------------------------------------------------------------- * * | pc | | * * ------------------------------------------------------------- * * ------------------------------------------------------------- * * | 11 | 12 | | * * ------------------------------------------------------------- * * | 0x2c| 0x30| | * * ------------------------------------------------------------- * * | sp | size| | * * ------------------------------------------------------------- * * ------------------------------------------------------------- * * | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | * * ------------------------------------------------------------- * * | 0x34| 0x38|0x3c| 0x40| 0x44| 0x48| 0x4c| 0x50| 0x54| 0x58 | * * ------------------------------------------------------------- * * | s16 | s17 | s18 | s19 | s20 | s21 | s22 | s23 | s24 | s25 | * * ------------------------------------------------------------- * * ------------------------------------------------------------- * * | 23 | 24 | 25 | 26 | 27 | 28 | | * * ------------------------------------------------------------- * * | 0x5c| 0x60| 0x64| 0x68| 0x6c| 0x70| | * * ------------------------------------------------------------- * * | s26 | s27 | s28 | s29 | s30 | s31 | | * * ------------------------------------------------------------- * * * * *****************************************************************/ .text .globl make_fcontext .align 2 .type make_fcontext,%function make_fcontext: mov a4, a1 @ save address of context stack (base) A4 sub a1, a1, #116 @ reserve space for fcontext_t at top of context stack @ shift address in A1 to lower 16 byte boundary @ == pointer to fcontext_t and address of context stack bic a1, a1, #15 str a4, [a1,#44] @ save address of context stack (base) in fcontext_t str a2, [a1,#48] @ save context stack size in fcontext_t str a3, [a1,#40] @ save address of context function in fcontext_t str a1, [a1,#32] @ save address in A4 as stack pointer for context function adr a2, finish @ compute abs address of label finish str a2, [a1,#36] @ save address of finish as return address for context function @ entered after context function returns bx lr finish: @ SP points to same addras SP on entry of context function mov a1, #0 @ exit code is zero bl _exit@PLT @ exit application .size make_fcontext,.-make_fcontext /* Mark that we don't need executable stack. */ .section .note.GNU-stack,"",%progbits
