mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-08-15 20:55:59 +00:00
4344e27c26
Update reserved function names starting with one underscore, replacing them as follows: '_k_' with 'z_' '_K_' with 'Z_' '_handler_' with 'z_handl_' '_Cstart' with 'z_cstart' '_Swap' with 'z_swap' This renaming is done on both global and those static function names in kernel/include and include/. Other static function names in kernel/ are renamed by removing the leading underscore. Other function names not starting with any prefix listed above are renamed starting with a 'z_' or 'Z_' prefix. Function names starting with two or three leading underscores are not automatcally renamed since these names will collide with the variants with two or three leading underscores. Various generator scripts have also been updated as well as perf, linker and usb files. These are drivers/serial/uart_handlers.c include/linker/kobject-text.ld kernel/include/syscall_handler.h scripts/gen_kobject_list.py scripts/gen_syscall_header.py Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/*
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* Copyright (c) 2012-2014 Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief Compiler stack protection (kernel part)
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*
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* This module provides functions to support compiler stack protection
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* using canaries. This feature is enabled with configuration
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* CONFIG_STACK_CANARIES=y.
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*
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* When this feature is enabled, the compiler generated code refers to
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* function __stack_chk_fail and global variable __stack_chk_guard.
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*/
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#include <toolchain.h> /* compiler specific configurations */
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#include <kernel_structs.h>
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#include <toolchain.h>
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#include <linker/sections.h>
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#include <kernel.h>
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#include <app_memory/app_memdomain.h>
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/**
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*
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* @brief Stack canary error handler
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*
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* This function is invoked when a stack canary error is detected.
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*
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* @return Does not return
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*/
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void FUNC_NORETURN _StackCheckHandler(void)
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{
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/* Stack canary error is a software fatal condition; treat it as such.
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*/
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z_except_reason(_NANO_ERR_STACK_CHK_FAIL);
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CODE_UNREACHABLE;
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}
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/* Global variable */
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/*
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* Symbol referenced by GCC compiler generated code for canary value.
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* The canary value gets initialized in z_cstart().
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*/
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#ifdef CONFIG_USERSPACE
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K_APP_DMEM(z_libc_partition) uintptr_t __stack_chk_guard;
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#else
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__noinit uintptr_t __stack_chk_guard;
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#endif
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/**
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*
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* @brief Referenced by GCC compiler generated code
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*
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* This routine is invoked when a stack canary error is detected, indicating
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* a buffer overflow or stack corruption problem.
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*/
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FUNC_ALIAS(_StackCheckHandler, __stack_chk_fail, void);
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