page_inject/Makefile at main · sgkdev/page_inject · GitHub

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# page_inject -- CVE-2026-31431 page-cache injector
#
#   make              Build page_inject (generates asm_bytecode.c if missing)
#   make shellcode    Assemble .asm -> .bin flat binaries
#   make clean        Remove all build artifacts including asm_bytecode.c

CC      := gcc
CFLAGS  := -O2 -Wall -Wextra -Wno-unused-result
LDFLAGS := -static
NASM    := nasm

SRCS    := page_inject.c asm_bytecode.c
OBJS    := $(SRCS:.c=.o)

# -- Main target ------------------------------------------------------

page_inject: $(OBJS)
	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJS)

%.o: %.c
	$(CC) $(CFLAGS) -c -o $@ $<

# Generate asm_bytecode.c from .asm sources (requires nasm)
asm_bytecode.c: zone_c.asm write_cache.asm zone_c_ld.asm trampoline.asm gen_arrays.sh
	./gen_arrays.sh

# -- Shellcode flat binaries (optional, for inspection) ---------------

zone_c.bin: zone_c.asm
	$(NASM) -f bin -o $@ $<

write_cache.bin: write_cache.asm
	$(NASM) -f bin -o $@ $<

zone_c_ld.bin: zone_c_ld.asm
	$(NASM) -f bin -o $@ $<

trampoline.bin: trampoline.asm
	$(NASM) -f bin -o $@ $<

shellcode: zone_c.bin write_cache.bin zone_c_ld.bin trampoline.bin

# -- Clean ------------------------------------------------------------

clean:
	rm -f page_inject $(OBJS) asm_bytecode.c \
	      zone_c.bin write_cache.bin zone_c_ld.bin trampoline.bin

.PHONY: shellcode clean
.DEFAULT_GOAL := page_inject