函数逻辑报告 |
Source Code:kernel\sys.c |
Create Date:2022-07-27 10:21:13 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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函数名称:prctl_set_mm
函数原型:static int prctl_set_mm(int opt, unsigned long addr, unsigned long arg4, unsigned long arg5)
返回类型:int
参数:
类型 | 参数 | 名称 |
---|---|---|
int | opt | |
unsigned long | addr | |
unsigned long | arg4 | |
unsigned long | arg5 |
2090 | struct prctl_mm_map prctl_map = {auxiliary vector = NULL, vector size = 0, /proc/$pid/exe link file = - 1, } |
2098 | 如果arg5或arg4且opt不等于PR_SET_MM_AUXV且opt不等于PR_SET_MM_MAP且opt不等于PR_SET_MM_MAP_SIZE则返回:负EINVAL |
2111 | 如果opt恒等于PR_SET_MM_EXE_FILE则返回:prctl_set_mm_exe_file(mm, (unsignedint)addr) |
2114 | 如果opt恒等于PR_SET_MM_AUXV则返回:prctl_set_auxv(mm, addr, arg4) |
2117 | 如果addr大于等于TASK_SIZE或addr小于mmap_min_addr则返回:负EINVAL |
2127 | lock for reading |
2130 | 加自旋锁 |
2131 | code section bounds 等于start_code |
2133 | data section bounds 等于start_data |
2135 | heap for brk() syscall 等于start_brk |
2137 | stack starts at 等于start_stack |
2144 | 当:opt恒等于PR_SET_MM_START_CODE |
2145 | code section bounds 等于addr |
2146 | 退出 |
2147 | 当:opt恒等于PR_SET_MM_END_CODE |
2150 | 当:opt恒等于PR_SET_MM_START_DATA |
2151 | data section bounds 等于addr |
2152 | 退出 |
2153 | 当:opt恒等于PR_SET_MM_END_DATA |
2156 | 当:opt恒等于PR_SET_MM_START_STACK |
2157 | stack starts at 等于addr |
2158 | 退出 |
2159 | 当:opt恒等于PR_SET_MM_START_BRK |
2160 | heap for brk() syscall 等于addr |
2161 | 退出 |
2162 | 当:opt恒等于PR_SET_MM_BRK |
2165 | 当:opt恒等于PR_SET_MM_ARG_START |
2167 | 退出 |
2168 | 当:opt恒等于PR_SET_MM_ARG_END |
2171 | 当:opt恒等于PR_SET_MM_ENV_START |
2172 | vironment variables bounds 等于addr |
2173 | 退出 |
2174 | 当:opt恒等于PR_SET_MM_ENV_END |
2177 | 默认 |
2178 | 转到:out |
2181 | error等于Check arithmetic relations of passed addresses.* WARNING: we don't require any capability here so be very careful* in what is allowed for modification from userspace. |
2193 | 当:opt恒等于PR_SET_MM_START_STACK |
2194 | 当:opt恒等于PR_SET_MM_ARG_START |
2195 | 当:opt恒等于PR_SET_MM_ARG_END |
2196 | 当:opt恒等于PR_SET_MM_ENV_START |
2197 | 当:opt恒等于PR_SET_MM_ENV_END |
2210 | start_stack等于stack starts at |
2216 | error等于0 |
2217 | out : |
2218 | 自旋锁解锁 |
2219 | lease a read lock |
2220 | 返回:error |
名称 | 描述 |
---|---|
SYSCALL_DEFINE5 |
源代码转换工具 开放的插件接口 | X |
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