mprotect

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byte level write access protection?

protecting a page fo开发者_StackOverflowr Read and/or Write access is possible as there are bits in the page table entry that can be turned on and off at kernel level. Is there a way in which certain[详细]

2023-04-06 13:30 分类：问答
how to get protection flags of a memory area, flags are PROT_READ /PROT_EXEC in mprotect

I use 开发者_运维知识库mprotect() to set protection flags to a memory area. Later on, I want to restore this memory area\'s protection flags.[详细]

2023-03-26 09:44 分类：问答
How can I force GDB to execute code for which there are no symbols

I have a C program that (for good reason) allocates memory, copies some code to it, uses mprotect() to give it execute privileges, and then calls that code.[详细]

2023-03-11 02:44 分类：问答
C SIGSEGV Handler & Mprotect

I\'m constructing a program which uses mprotect() to restrict a block of memory from accessing.When the memory is requested, a SIGSEGV is thrown which I listen for using a signal() call.[详细]

2022-12-27 21:02 分类：问答
How to write a signal handler to catch SIGSEGV?

I want to write a signal handler to catch SIGSEGV. I protect a block of memory for read or write using[详细]

2022-12-27 02:25 分类：问答
Loading MachineCode From File Into Memory and Executing in C -- mprotect Failing

Hi I\'m trying to load raw machine code into memory and run it from within a C program, right now when the program executes it breaks when trying to run mprotect on the memory to make it executable. I[详细]

2022-12-22 16:21 分类：问答
Why is my mprotect function called with 5 arguments?

According to the Linux 开发者_如何学编程man page for mprotect the function has 3 arguments: int mprotect(const void *addr, size_t len, int prot);[详细]

2022-12-09 09:17 分类：问答