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Diffstat (limited to 'ports/risc-v32/clang/src/tx_thread_stack_build.S')
| -rw-r--r-- | ports/risc-v32/clang/src/tx_thread_stack_build.S | 221 |
1 files changed, 0 insertions, 221 deletions
diff --git a/ports/risc-v32/clang/src/tx_thread_stack_build.S b/ports/risc-v32/clang/src/tx_thread_stack_build.S deleted file mode 100644 index 2b8ebae1..00000000 --- a/ports/risc-v32/clang/src/tx_thread_stack_build.S +++ /dev/null @@ -1,221 +0,0 @@ -/*************************************************************************** - * Copyright (c) 2026 Quintauris - * - * This program and the accompanying materials are made available under the - * terms of the MIT License which is available at - * https://opensource.org/licenses/MIT. - * - * SPDX-License-Identifier: MIT - **************************************************************************/ - - -/**************************************************************************/ -/**************************************************************************/ -/** */ -/** ThreadX Component */ -/** */ -/** Thread */ -/** */ -/**************************************************************************/ -/**************************************************************************/ - - - .section .text -/**************************************************************************/ -/* */ -/* FUNCTION RELEASE */ -/* */ -/* _tx_thread_stack_build RISC-V32/GNU */ -/* 6.4.x */ -/* AUTHOR */ -/* */ -/* Francisco Merino, Quintauris */ -/* */ -/* DESCRIPTION */ -/* */ -/* This function builds a stack frame on the supplied thread's stack. */ -/* The stack frame results in a fake interrupt return to the supplied */ -/* function pointer. */ -/* */ -/* INPUT */ -/* */ -/* thread_ptr Pointer to thread control blk */ -/* function_ptr Pointer to return function */ -/* */ -/* OUTPUT */ -/* */ -/* None */ -/* */ -/* CALLS */ -/* */ -/* None */ -/* */ -/* CALLED BY */ -/* */ -/* _tx_thread_create Create thread service */ -/* */ -/**************************************************************************/ -/* VOID _tx_thread_stack_build(TX_THREAD *thread_ptr, VOID (*function_ptr)(VOID)) -{ */ - .global _tx_thread_stack_build -_tx_thread_stack_build: - - /* Build a fake interrupt frame. The form of the fake interrupt stack - on the RISC-V should look like the following after it is built: - Reg Index - Stack Top: 1 0 Interrupt stack frame type - x27 1 Initial s11 - x26 2 Initial s10 - x25 3 Initial s9 - x24 4 Initial s8 - x23 5 Initial s7 - x22 6 Initial s6 - x21 7 Initial s5 - x20 8 Initial s4 - x19 9 Initial s3 - x18 10 Initial s2 - x9 11 Initial s1 - x8 12 Initial s0 - x31 13 Initial t6 - x30 14 Initial t5 - x29 15 Initial t4 - x28 16 Initial t3 - x7 17 Initial t2 - x6 18 Initial t1 - x5 19 Initial t0 - x17 20 Initial a7 - x16 21 Initial a6 - x15 22 Initial a5 - x14 23 Initial a4 - x13 24 Initial a3 - x12 25 Initial a2 - x11 26 Initial a1 - x10 27 Initial a0 - x1 28 Initial ra - -- 29 reserved - mepc 30 Initial mepc -If floating point support: - f0 31 Initial ft0 - f1 32 Initial ft1 - f2 33 Initial ft2 - f3 34 Initial ft3 - f4 35 Initial ft4 - f5 36 Initial ft5 - f6 37 Initial ft6 - f7 38 Initial ft7 - f8 39 Initial fs0 - f9 40 Initial fs1 - f10 41 Initial fa0 - f11 42 Initial fa1 - f12 43 Initial fa2 - f13 44 Initial fa3 - f14 45 Initial fa4 - f15 46 Initial fa5 - f16 47 Initial fa6 - f17 48 Initial fa7 - f18 49 Initial fs2 - f19 50 Initial fs3 - f20 51 Initial fs4 - f21 52 Initial fs5 - f22 53 Initial fs6 - f23 54 Initial fs7 - f24 55 Initial fs8 - f25 56 Initial fs9 - f26 57 Initial fs10 - f27 58 Initial fs11 - f28 59 Initial ft8 - f29 60 Initial ft9 - f30 61 Initial ft10 - f31 62 Initial ft11 - fscr 63 Initial fscr - - Stack Bottom: (higher memory address) */ - - lw t0, 16(a0) // Pickup end of stack area - li t1, ~15 // Build 16-byte alignment mask - and t0, t0, t1 // Make sure 16-byte alignment - - /* Actually build the stack frame. */ - -#if defined(__riscv_float_abi_single) || defined(__riscv_float_abi_double) - addi t0, t0, -65*4 -#else - addi t0, t0, -32*4 // Allocate space for the stack frame -#endif - li t1, 1 // Build stack type - sw t1, 0*4(t0) // Place stack type on the top - sw zero, 1*4(t0) // Initial s11 - sw zero, 2*4(t0) // Initial s10 - sw zero, 3*4(t0) // Initial s9 - sw zero, 4*4(t0) // Initial s8 - sw zero, 5*4(t0) // Initial s7 - sw zero, 6*4(t0) // Initial s6 - sw zero, 7*4(t0) // Initial s5 - sw zero, 8*4(t0) // Initial s4 - sw zero, 9*4(t0) // Initial s3 - sw zero, 10*4(t0) // Initial s2 - sw zero, 11*4(t0) // Initial s1 - sw zero, 12*4(t0) // Initial s0 - sw zero, 13*4(t0) // Initial t6 - sw zero, 14*4(t0) // Initial t5 - sw zero, 15*4(t0) // Initial t4 - sw zero, 16*4(t0) // Initial t3 - sw zero, 17*4(t0) // Initial t2 - sw zero, 18*4(t0) // Initial t1 - sw zero, 19*4(t0) // Initial t0 - sw zero, 20*4(t0) // Initial a7 - sw zero, 21*4(t0) // Initial a6 - sw zero, 22*4(t0) // Initial a5 - sw zero, 23*4(t0) // Initial a4 - sw zero, 24*4(t0) // Initial a3 - sw zero, 25*4(t0) // Initial a2 - sw zero, 26*4(t0) // Initial a1 - sw zero, 27*4(t0) // Initial a0 - sw zero, 28*4(t0) // Initial ra - sw a1, 30*4(t0) // Initial mepc (thread entry point) -#if defined(__riscv_float_abi_single) || defined(__riscv_float_abi_double) - sw zero, 31*4(t0) // Initial ft0 - sw zero, 32*4(t0) // Initial ft1 - sw zero, 33*4(t0) // Initial ft2 - sw zero, 34*4(t0) // Initial ft3 - sw zero, 35*4(t0) // Initial ft4 - sw zero, 36*4(t0) // Initial ft5 - sw zero, 37*4(t0) // Initial ft6 - sw zero, 38*4(t0) // Initial ft7 - sw zero, 39*4(t0) // Initial fs0 - sw zero, 40*4(t0) // Initial fs1 - sw zero, 41*4(t0) // Initial fa0 - sw zero, 42*4(t0) // Initial fa1 - sw zero, 43*4(t0) // Initial fa2 - sw zero, 44*4(t0) // Initial fa3 - sw zero, 45*4(t0) // Initial fa4 - sw zero, 46*4(t0) // Initial fa5 - sw zero, 47*4(t0) // Initial fa6 - sw zero, 48*4(t0) // Initial fa7 - sw zero, 49*4(t0) // Initial fs2 - sw zero, 50*4(t0) // Initial fs3 - sw zero, 51*4(t0) // Initial fs4 - sw zero, 52*4(t0) // Initial fs5 - sw zero, 53*4(t0) // Initial fs6 - sw zero, 54*4(t0) // Initial fs7 - sw zero, 55*4(t0) // Initial fs8 - sw zero, 56*4(t0) // Initial fs9 - sw zero, 57*4(t0) // Initial fs10 - sw zero, 58*4(t0) // Initial fs11 - sw zero, 59*4(t0) // Initial ft8 - sw zero, 60*4(t0) // Initial ft9 - sw zero, 61*4(t0) // Initial ft10 - sw zero, 62*4(t0) // Initial ft11 - csrr a1, fcsr // Read fcsr for initial value - sw a1, 63*4(t0) // Initial fcsr - sw zero, 64*4(t0) // Reserved word (0) -#else - sw zero, 31*4(t0) // Reserved word (0) -#endif - - /* Setup stack pointer. */ - /* thread_ptr -> tx_thread_stack_ptr = t0; */ - - sw t0, 8(a0) // Save stack pointer in thread's - ret // control block and return -/* } */ |