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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155# SPDX-License-Identifier: GPL-2.0CFLAGS = -WallCFLAGS += -Wno-nonnullCFLAGS += $(KHDR_INCLUDES)
LDLIBS += -lcap
ALIGNS := 0x1000 0x200000 0x1000000ALIGN_PIES := $(patsubst %,load_address.%,$(ALIGNS))ALIGN_STATIC_PIES := $(patsubst %,load_address.static.%,$(ALIGNS))ALIGNMENT_TESTS := $(ALIGN_PIES) $(ALIGN_STATIC_PIES)
TEST_PROGS := binfmt_script.py check-exec-tests.shTEST_GEN_PROGS := execveat non-regular $(ALIGNMENT_TESTS)TEST_GEN_PROGS_EXTENDED := false inc set-exec script-exec.inc script-noexec.incTEST_GEN_FILES := execveat.symlink execveat.denatured script subdir# Makefile is a run-time dependency, since it's accessed by the execveat testTEST_FILES := Makefile
TEST_GEN_PROGS += recursion-depthTEST_GEN_PROGS += null-argvTEST_GEN_PROGS += check-exec
# binfmt_misc must not be reachable as an exec source or as a stacking layer,# or an 'F' entry can pin the instance that owns it. Unprivileged, no bpf.TEST_GEN_PROGS += binfmt_misc_selfpin
# The interpreters an 'F' or 'B' entry pre-opens are charged against# UCOUNT_BINFMT_MISC_INTERPRETERS. Unprivileged, no bpf.TEST_GEN_PROGS += binfmt_misc_interplimit
# 'D' (register disabled) binfmt_misc test: an entry that exists but does# not dispatch until it is enabled. Static magic entry, no bpf toolchain.TEST_GEN_PROGS += binfmt_misc_disabled
# Static ('T' flag) transparent binfmt_misc test; the asserting interpreter# is shared with the bpf harness's transparent case. No bpf toolchain needed.TEST_GEN_PROGS += binfmt_misc_transparentTEST_GEN_FILES += binfmt_transparent_interp
# 'L' (loader substitution) binfmt_misc test: the payload runs as the main# image with a copy of the system loader substituted for its PT_INTERP and# asserts the native identity from inside; the static build proves the# override is dropped for a binary without PT_INTERP.TEST_GEN_PROGS += binfmt_misc_loaderTEST_GEN_FILES += binfmt_loader_payload binfmt_loader_payload_static
# Only ASCII punctuation delimits the fields of a register string, so a new# flag character cannot change which strings register. No bpf toolchain.TEST_GEN_PROGS += binfmt_misc_delim
# binfmt_misc bpf-backed ('B') handler test: a libbpf harness plus its# struct_ops objects and the test interpreter/app it routes between. Only# built when clang, bpftool, the vmlinux BTF and libbpf are all present# (HAVE_BPF_TOOLCHAIN=y forces it) so the other exec selftests don't grow# a bpf toolchain dependency.CLANG ?= clangBPFTOOL ?= bpftoolVMLINUX_BTF ?= /sys/kernel/btf/vmlinuxHAVE_BPF_TOOLCHAIN ?= $(shell command -v $(CLANG) >/dev/null 2>&1 && \ command -v $(BPFTOOL) >/dev/null 2>&1 && \ test -r $(VMLINUX_BTF) && \ pkg-config --exists libbpf 2>/dev/null && echo y)ifeq ($(HAVE_BPF_TOOLCHAIN),y)TEST_GEN_PROGS += binfmt_misc_bpfTEST_GEN_FILES += bpf_interp.bpf.o nix_origin.bpf.o transparent.bpf.oTEST_GEN_FILES += loader.bpf.o interp_bind.bpf.oTEST_GEN_FILES += binfmt_bpf_interp binfmt_bpf_app binfmt_bind_interpelse$(warning exec selftests: skipping binfmt_misc_bpf, needs clang, bpftool, vmlinux BTF and libbpf)endif
EXTRA_CLEAN := $(OUTPUT)/subdir.moved $(OUTPUT)/execveat.moved $(OUTPUT)/xxxxx* \ $(OUTPUT)/S_I*.test
LOCAL_HDRS += binfmt_misc_common.h
include ../lib.mk
CHECK_EXEC_SAMPLES := $(top_srcdir)/samples/check-exec
$(OUTPUT)/subdir: mkdir -p $@$(OUTPUT)/script: Makefile echo '#!/bin/bash' > $@ echo 'exit $$*' >> $@ chmod +x $@$(OUTPUT)/execveat.symlink: $(OUTPUT)/execveat cd $(OUTPUT) && ln -s -f $(shell basename $<) $(shell basename $@)$(OUTPUT)/execveat.denatured: $(OUTPUT)/execveat cp $< $@ chmod -x $@$(OUTPUT)/load_address.0x%: load_address.c $(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=$(lastword $(subst ., ,$@)) \ -fPIE -pie $< -o $@$(OUTPUT)/load_address.static.0x%: load_address.c $(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=$(lastword $(subst ., ,$@)) \ -fPIE -static-pie $< -o $@$(OUTPUT)/false: false.c $(CC) $(CFLAGS) $(LDFLAGS) -static $< -o $@$(OUTPUT)/inc: $(CHECK_EXEC_SAMPLES)/inc.c $(CC) $(CFLAGS) $(LDFLAGS) $< -o $@$(OUTPUT)/set-exec: $(CHECK_EXEC_SAMPLES)/set-exec.c $(CC) $(CFLAGS) $(LDFLAGS) $< -o $@$(OUTPUT)/script-exec.inc: $(CHECK_EXEC_SAMPLES)/script-exec.inc cp $< $@$(OUTPUT)/script-noexec.inc: $(CHECK_EXEC_SAMPLES)/script-noexec.inc cp $< $@
# Reuses setup_userns()/write_file() from the filesystems selftests. Their# wrappers.h wants the uapi headers, so ask for them here rather than widening# CFLAGS for every program in this directory.$(OUTPUT)/binfmt_misc_selfpin: CFLAGS += $(TOOLS_INCLUDES)$(OUTPUT)/binfmt_misc_selfpin: ../filesystems/utils.c$(OUTPUT)/binfmt_misc_interplimit: CFLAGS += $(TOOLS_INCLUDES)$(OUTPUT)/binfmt_misc_interplimit: ../filesystems/utils.c
# --- binfmt_misc bpf ('B') handler test ---------------------------------# The struct_ops bpf objects are compiled against the running kernel's BTF.# CLANG/BPFTOOL/VMLINUX_BTF are set above next to the toolchain check;# override LIBBPF_CFLAGS/LDLIBS to point at a libbpf install.BPF_CFLAGS ?= -I$(OUTPUT)LIBBPF_CFLAGS ?=LIBBPF_LDLIBS ?= -lbpf -lelf -lz
$(OUTPUT)/vmlinux.h: $(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
# BPF_NO_KFUNC_PROTOTYPES: the programs declare the kfuncs they use themselves.$(OUTPUT)/%.bpf.o: %.bpf.c $(OUTPUT)/vmlinux.h $(CLANG) -g -O2 -target bpf -mcpu=v3 -DBPF_NO_KFUNC_PROTOTYPES \ $(BPF_CFLAGS) $(LIBBPF_CFLAGS) -c $< -o $@
$(OUTPUT)/binfmt_misc_bpf: binfmt_misc_bpf.c binfmt_misc_common.h $(CC) $(CFLAGS) $(LIBBPF_CFLAGS) $(LDFLAGS) $< $(LIBBPF_LDLIBS) -o $@
$(OUTPUT)/binfmt_bpf_interp: binfmt_bpf_interp.c $(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
$(OUTPUT)/binfmt_bind_interp: binfmt_bind_interp.c $(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
$(OUTPUT)/binfmt_loader_payload: binfmt_loader_payload.c binfmt_misc_common.h $(CC) $(CFLAGS) $(LDFLAGS) -fPIE -pie $< -o $@
$(OUTPUT)/binfmt_loader_payload_static: binfmt_loader_payload.c binfmt_misc_common.h $(CC) $(CFLAGS) $(LDFLAGS) -static $< -o $@
# PT_INTERP is set to the literal "$ORIGIN/binfmt_bpf_interp"; the nix_origin# handler resolves it relative to the binary at run time.$(OUTPUT)/binfmt_bpf_app: binfmt_bpf_app.c $(CC) $(CFLAGS) $(LDFLAGS) -Wl,--dynamic-linker,'$$ORIGIN/binfmt_bpf_interp' $< -o $@
EXTRA_CLEAN += $(OUTPUT)/vmlinux.h $(OUTPUT)/*.bpf.o