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Validate privileged code relationships

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- Work towards improving non-optimized build support
- Introduce MODE=zero which is -O0 without ASAN/UBSAN
- Use system GCC when ~/.cosmo.mk has USE_SYSTEM_TOOLCHAIN=1
- Have package.com check .privileged code doesn't call non-privileged
This commit is contained in:
Justine Tunney 2023-06-08 04:37:05 -07:00
parent 01fd655097
commit daf4454a06
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
82 changed files with 808 additions and 850 deletions
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62
build/definitions.mk
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@ -33,14 +33,25 @@
#
# VARIABLES
#
# CCFLAGS gcc frontend flags (.i, .c, .cc, .f, .S, .lds, etc.)
# Our configuration variables, ordered by increasing preference:
#
# CCFLAGS frontend flags (.i, .c, .cc, .f, .S, .lds, etc.)
# OFLAGS objectify flags (precludes -S and -E)
# CPPFLAGS preprocessor flags (.h, .c, .cc, .S, .inc, .lds, etc.)
# TARGET_ARCH microarchitecture flags (e.g. -march=native)
# COPTS c/c++ flags (.c, .cc)
# CFLAGS c flags (.c only)
# CXXFLAGS c++ flags (.cc only)
# COPTS c/c++ flags (.c, .cc)
# LDFLAGS linker flags (don't use -Wl, frontend prefix)
# ASFLAGS assembler flags (don't use -Wa, frontend prefix)
# TARGET_ARCH microarchitecture flags (e.g. -march=native)
#
# For each FOO above, there exists (by increasing preference)
#
# DEFAULT_FOO see build/definitions.mk
# CONFIG_FOO see build/config.mk
# FOO set ~/.cosmo.mk and target-specific
# OVERRIDE_FOO set ~/.cosmo.mk and target-specific (use rarely)
#
LC_ALL = C
SOURCE_DATE_EPOCH = 0
@ -88,19 +99,19 @@ ARCH = x86_64
HOSTS ?= freebsd openbsd netbsd rhel7 rhel5 xnu win10
endif
PORTCOSMO_CCFLAGS = -fportcosmo -include build/portcosmo.h
ifeq ($(PREFIX),)
ifeq ($(USE_SYSTEM_TOOLCHAIN),)
ifneq ("$(wildcard o/third_party/gcc/bin/x86_64-pc-linux-gnu-*)","")
PREFIX = o/third_party/gcc/bin/x86_64-pc-linux-gnu-
DEFAULT_CPPFLAGS += $(PORTCOSMO_CCFLAGS)
else
IGNORE := $(shell build/bootstrap/unbundle.com)
PREFIX = o/third_party/gcc/bin/x86_64-linux-musl-
DEFAULT_CPPFLAGS += $(PORTCOSMO_CCFLAGS)
endif
ifeq ($(ARCH), aarch64)
PREFIX = o/third_party/gcc/bin/aarch64-linux-musl-
endif
endif
endif
AS = $(PREFIX)as
CC = $(PREFIX)gcc
@ -112,7 +123,7 @@ GCC = $(PREFIX)gcc
STRIP = $(PREFIX)strip
OBJCOPY = $(PREFIX)objcopy
OBJDUMP = $(PREFIX)objdump
ADDR2LINE = $(PWD)/$(PREFIX)addr2line
ADDR2LINE = $(join $(PWD),$(PREFIX))addr2line
export ADDR2LINE
export LC_ALL
@ -122,15 +133,11 @@ export SOURCE_DATE_EPOCH
export TMPDIR
ifeq ($(LANDLOCKMAKE_VERSION),)
TMPSAFE = $(TMPDIR)/$(subst /,_,$@).tmp
TMPSAFE = $(join $(TMPDIR),$(subst /,_,$@)).tmp
else
TMPSAFE = $(TMPDIR)/
endif
ifneq ($(ARCH), aarch64)
MNO_FENTRY = -mno-fentry
endif
ifeq ($(ARCH), aarch64)
IMAGE_BASE_VIRTUAL ?= 0x010000000000
else
@ -150,7 +157,6 @@ SANITIZER = \
-fsanitize=address
NO_MAGIC = \
$(MNO_FENTRY) \
-fno-stack-protector \
-fwrapv \
-fno-sanitize=all
@ -170,19 +176,22 @@ DEFAULT_CCFLAGS += \
-fdebug-prefix-map='$(PWD)'= \
-frecord-gcc-switches
DEFAULT_OFLAGS = \
DEFAULT_OFLAGS ?= \
-g \
-gdwarf-4 \
-gdescribe-dies
DEFAULT_COPTS = \
DEFAULT_COPTS ?= \
-fno-math-errno \
-fno-ident \
-fno-common \
-fno-gnu-unique \
-fstrict-aliasing \
-fstrict-overflow \
-fno-semantic-interposition
-fno-semantic-interposition \
-fno-dwarf2-cfi-asm \
-fno-unwind-tables \
-fno-asynchronous-unwind-tables
ifeq ($(ARCH), x86_64)
DEFAULT_COPTS += \
@ -334,19 +343,19 @@ LD.libs = \
$(CONFIG_LIBS) \
$(LIBS)
COMPILE.c.flags = $(cc.flags) $(cpp.flags) $(copt.flags) $(c.flags)
COMPILE.cxx.flags = $(cc.flags) $(cpp.flags) $(copt.flags) $(cxx.flags)
COMPILE.c.flags = $(cc.flags) $(copt.flags) $(cpp.flags) $(c.flags)
COMPILE.cxx.flags = $(cc.flags) $(copt.flags) $(cpp.flags) $(cxx.flags)
COMPILE.f.flags = $(cc.flags) $(copt.flags) $(f.flags)
COMPILE.F.flags = $(cc.flags) $(cpp.flags) $(copt.flags) $(f.flags)
COMPILE.F.flags = $(cc.flags) $(copt.flags) $(cpp.flags) $(f.flags)
COMPILE.i.flags = $(cc.flags) $(copt.flags) $(c.flags)
COMPILE.ii.flags = $(cc.flags) $(copt.flags) $(cxx.flags)
LINK.flags = $(DEFAULT_LDFLAGS) $(CONFIG_LDFLAGS) $(LDFLAGS)
OBJECTIFY.c.flags = $(OBJECTIFY.S.flags) $(copt.flags) $(c.flags)
OBJECTIFY.cxx.flags = $(OBJECTIFY.S.flags) $(copt.flags) $(cxx.flags)
OBJECTIFY.c.flags = $(cc.flags) $(o.flags) $(S.flags) $(cpp.flags) $(copt.flags) $(c.flags)
OBJECTIFY.cxx.flags = $(cc.flags) $(o.flags) $(S.flags) $(cpp.flags) $(copt.flags) $(cxx.flags)
OBJECTIFY.s.flags = $(ASONLYFLAGS) $(s.flags)
OBJECTIFY.S.flags = $(copt.flags) $(cc.flags) $(o.flags) $(cpp.flags) $(S.flags)
OBJECTIFY.f.flags = $(copt.flags) $(cc.flags) $(o.flags) $(copt.flags) $(S.flags) $(f.flags)
OBJECTIFY.F.flags = $(OBJECTIFY.f.flags) $(cpp.flags)
OBJECTIFY.S.flags = $(cc.flags) $(o.flags) $(S.flags) $(cpp.flags)
OBJECTIFY.f.flags = $(cc.flags) $(o.flags) $(S.flags) $(f.flags)
OBJECTIFY.F.flags = $(cc.flags) $(o.flags) $(S.flags) $(cpp.flags) $(copt.flags) $(f.flags)
PREPROCESS.flags = -E $(copt.flags) $(cc.flags) $(cpp.flags)
PREPROCESS.lds.flags = -D__LINKER__ $(filter-out -g%,$(PREPROCESS.flags)) -P -xc
@ -382,7 +391,6 @@ OBJECTIFY.greg.c = \
-fno-optimize-sibling-calls \
-fno-sanitize=all \
-ffreestanding \
$(MNO_FENTRY) \
-fwrapv \
-c
@ -422,7 +430,6 @@ OBJECTIFY.ncabi.c = \
$(OBJECTIFY.c.flags) \
-mno-sse \
-mfpmath=387 \
$(MNO_FENTRY) \
-fno-stack-protector \
-fno-instrument-functions \
-fno-optimize-sibling-calls \
@ -441,7 +448,6 @@ OBJECTIFY.ncabi.c = \
OBJECTIFY.initabi.c = \
$(GCC) \
$(OBJECTIFY.c.flags) \
$(MNO_FENTRY) \
-fno-stack-protector \
-fno-instrument-functions \
-fno-optimize-sibling-calls \