CV-Bowen commented on code in PR #7029: URL: https://github.com/apache/incubator-nuttx/pull/7029#discussion_r965944579
########## libs/libc/machine/arm/gnu/tc32_setjmp.S: ########## @@ -0,0 +1,148 @@ +/**************************************************************************** + * libs/libc/machine/arm/gnu/tc32_setjmp.S + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Public Symbols + ****************************************************************************/ + + .globl setjmp + .globl longjmp + + .file "tc32_setjmp.S" + +/**************************************************************************** + * Macros + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: setjmp + * + * Description: + * Given the pointer to a register save area (in R0), save the state of the + * all callee-saved registers + * + * C Function Prototype: + * int setjmp(jmp_buf env); + * + * Input Parameters: + * env - A pointer to the register save area in which to save the floating point + * registers and core registers. Since setjmp() can not be inlined, we + * only need to save the ABI-specified callee-saved registers. + * Review Comment: Thanks for the advice, i will update the comment, also document why need a special version of setjmp/longjmp. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
