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longpanda c16e76130b Fix VTOY_LINUX_REMOUNT option for latest CentOS 9 Stream. (#2827) 2024-05-19 15:35:05 +08:00
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Makefile 1.0.64 release 2022-01-08 23:07:04 +08:00
Makefile_IBT Fix the VTOY_LINUX_REMOUNT option for new linux kernel in intel 11th(and later) gen CPU. 2023-03-26 10:45:19 +08:00
dmpatch.c Fix VTOY_LINUX_REMOUNT option for latest CentOS 9 Stream. (#2827) 2024-05-19 15:35:05 +08:00
readme.txt Fix the issue that VTOY_LINUX_REMOUNT=1 does not work on some distros (e.g. Pop OS/openSUSE/Ubuntu 23.04) (#2475 #2551) 2023-10-06 21:12:34 +08:00
ubuntu_build.sh Fix the issue that VTOY_LINUX_REMOUNT=1 does not work on some distros (e.g. Pop OS/openSUSE/Ubuntu 23.04) (#2475 #2551) 2023-10-06 21:12:34 +08:00

readme.txt

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1. install ubuntu 22.04  5.15.0-25
2. apt-get install build-essential flex libncurses-dev linux-headers-generic linux-source libssl-dev bison yacc vim libelf-dev  ...... and so on
3. cp /lib/modules/5.15.0-25-generic/build/Module.symvers ./
4. /boot/config-5.15.0-25-generic as .config   make oldconfig
5. make menuconfig 
    1. close CONFIG_STACKPROTECTOR
    2. close CONFIG_RETPOLINE
    3. close CONFIG_UBSAN_BOUNDS
    4. close CONFIG_UBSAN_ENUM

6. modify ./scripts/mod/modpost.c
    1. skip add_srcversion (just return)
    2. force add_retpoline (#ifdef --> #ifndef)
    3. force add_intree_flag

7. make modules_prepare LOCALVERSION=-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

8. Append padding at the end of struct module <include/linux/module.h>
struct module {
    enum module_state state;

	/* Member of list of modules */
	struct list_head list;

	/* Unique handle for this module */
	char name[MODULE_NAME_LEN];
    
    ....
    
    char padding[1024];
};

This is because struct module size is different in different kernel versions or with different CONFIG item.


9. make modules M=/home/dmpatch
10. strip --strip-debug /home/dmpatch/dm_patch.ko