Issues compiling LiME for a Android Pixel 2 - Invalid Argument

[MichaelHbfh]

I am trying to cross-compile the latest version of LiME to acquire a memory image of my Android Pixel 2 phone.

I did manage to compile the Android kernel and using the same configuration (exports) as for the kernel compilation, therefore the same cross compiler. When I try to compile LiME the following error messages appear:
cross-compile for Android emulator
make ARCH=arm64 CROSS_COMPILE=/home/michael/Projects/Android/phone_info/pixel_2/android-ndk-r16b/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android- -C /home/michael/Projects/Android/phone_info/pixel_2/android-msm-wahoo-4.4-android11 M="/home/michael/Projects/Android/phone_info/pixel_2/LiME/src" modules
make[1]: Entering directory '/home/michael/Projects/Android/phone_info/pixel_2/android-msm-wahoo-4.4-android11'
CC [M] /home/michael/Projects/Android/phone_info/pixel_2/LiME/src/tcp.o
/home/michael/Projects/Android/phone_info/pixel_2/LiME/src/tcp.c:39:1: error: expected '=', ',', ';', 'asm' or 'attribute' before 'ssize_t'
ssize_t write_vaddr_tcp(void *, size_t);
^
/home/michael/Projects/Android/phone_info/pixel_2/LiME/src/tcp.c: In function 'setup_tcp':
/home/michael/Projects/Android/phone_info/pixel_2/LiME/src/tcp.c:77:5: error: 'opt' undeclared (first use in this function)
opt = 1;
^
/home/michael/Projects/Android/phone_info/pixel_2/LiME/src/tcp.c:77:5: note: each undeclared identifier is reported only once for each function it appears in
make[2]: *** [scripts/Makefile.build:277: /home/michael/Projects/Android/phone_info/pixel_2/LiME/src/tcp.o] Error 1
make[1]: *** [Makefile:1473: module/home/michael/Projects/Android/phone_info/pixel_2/LiME/src] Error 2
make[1]: Leaving directory '/home/michael/Projects/Android/phone_info/pixel_2/android-msm-wahoo-4.4-android11'
make: *** [Makefile:37: cross-compile] Error 2
******************************************

cross-compile for Android emulator

make ARCH=arm64 CROSS_COMPILE=/home/michael/Projects/Android/phone_info/pixel_2/android-ndk-r16b/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android- -C /home/michael/Projects/Android/phone_info/pixel_2/android-msm-wahoo-4.4-android11 M="/home/michael/Projects/Android/phone_info/pixel_2/LiME/src" modules
make[1]: Entering directory '/home/michael/Projects/Android/phone_info/pixel_2/android-msm-wahoo-4.4-android11'
CC [M] /home/michael/Projects/Android/phone_info/pixel_2/LiME/src/tcp.o
CC [M] /home/michael/Projects/Android/phone_info/pixel_2/LiME/src/disk.o
/home/michael/Projects/Android/phone_info/pixel_2/LiME/src/disk.c: In function 'write_vaddr_disk':
/home/michael/Projects/Android/phone_info/pixel_2/LiME/src/disk.c:99:5: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement]
mm_segment_t fs;
^
cc1: all warnings being treated as errors
make[2]: *** [scripts/Makefile.build:277: /home/michael/Projects/Android/phone_info/pixel_2/LiME/src/disk.o] Error 1
make[1]: *** [Makefile:1473: module/home/michael/Projects/Android/phone_info/pixel_2/LiME/src] Error 2
make[1]: Leaving directory '/home/michael/Projects/Android/phone_info/pixel_2/android-msm-wahoo-4.4-android11'
make: *** [Makefile:37: cross-compile] Error 2
michael@spica:~/Projects/Android/phone_info/pixel_2/LiME/src$ make cross-compile

cross-compile for Android emulator

make ARCH=arm64 CROSS_COMPILE=/home/michael/Projects/Android/phone_info/pixel_2/android-ndk-r16b/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android- -C /home/michael/Projects/Android/phone_info/pixel_2/android-msm-wahoo-4.4-android11 M="/home/michael/Projects/Android/phone_info/pixel_2/LiME/src" modules
make[1]: Entering directory '/home/michael/Projects/Android/phone_info/pixel_2/android-msm-wahoo-4.4-android11'
CC [M] /home/michael/Projects/Android/phone_info/pixel_2/LiME/src/disk.o
CC [M] /home/michael/Projects/Android/phone_info/pixel_2/LiME/src/main.o
CC [M] /home/michael/Projects/Android/phone_info/pixel_2/LiME/src/hash.o
CC [M] /home/michael/Projects/Android/phone_info/pixel_2/LiME/src/deflate.o
LD [M] /home/michael/Projects/Android/phone_info/pixel_2/LiME/src/lime.o
Building modules, stage 2.
MODPOST 1 modules
CC /home/michael/Projects/Android/phone_info/pixel_2/LiME/src/lime.mod.o
LD [M] /home/michael/Projects/Android/phone_info/pixel_2/LiME/src/lime.ko
make[1]: Leaving directory '/home/michael/Projects/Android/phone_info/pixel_2/android-msm-wahoo-4.4-android11'
/home/michael/Projects/Android/phone_info/pixel_2/android-ndk-r16b/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-strip --strip-unneeded lime.ko
mv lime.ko lime-goldfish.ko

I did manage to change the source code so that LiME does compile. But when I copy the .ko file onto my phone and try to forward a memory image I constantly get the following error message:
walleye:/sdcard # insmod lime-pixel_2.ko "path=tcp:4444 format=lime"
insmod: failed to load lime-pixel_2.ko: Invalid argument
1|walleye:/sdcard #

Any idea I can improve?