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neon/Makefile
Suhas Thalanki ee0c8ca8fd Add -fsigned-char for cross platform signed chars (#10852) 
## Problem

In multi-character keys, the GIN index creates a CRC Hash of the first 3
bytes of the key.
The hash can have the first bit to be set or unset, needing to have a
consistent representation
of `char` across architectures for consistent results. GIN stores these
keys by their hashes
which determines the order in which the keys are obtained from the GIN
index.

By default, chars are signed in x86 and unsigned in arm, leading to
inconsistent behavior across different platform architectures. Adding
the `-fsigned-char` flag to the GCC compiler forces chars to be treated
as signed across platforms, ensuring the ordering in which the keys are
obtained consistent.

## Summary of changes

Added `-fsigned-char` to the `CFLAGS` to force GCC to use signed chars
across platforms.
Added a test to check this across platforms.

Fixes: https://github.com/neondatabase/cloud/issues/23199
2025-02-28 21:07:21 +00:00

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Makefile
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ROOT_PROJECT_DIR := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
# Where to install Postgres, default is ./pg_install, maybe useful for package managers
POSTGRES_INSTALL_DIR ?= $(ROOT_PROJECT_DIR)/pg_install/
ICU_PREFIX_DIR := /usr/local/icu
#
# We differentiate between release / debug build types using the BUILD_TYPE
# environment variable.
#
BUILD_TYPE ?= debug
WITH_SANITIZERS ?= no
PG_CFLAGS = -fsigned-char
ifeq ($(BUILD_TYPE),release)
PG_CONFIGURE_OPTS = --enable-debug --with-openssl
PG_CFLAGS += -O2 -g3 $(CFLAGS)
PG_LDFLAGS = $(LDFLAGS)
# Unfortunately, `--profile=...` is a nightly feature
CARGO_BUILD_FLAGS += --release
else ifeq ($(BUILD_TYPE),debug)
PG_CONFIGURE_OPTS = --enable-debug --with-openssl --enable-cassert --enable-depend
PG_CFLAGS += -O0 -g3 $(CFLAGS)
PG_LDFLAGS = $(LDFLAGS)
else
$(error Bad build type '$(BUILD_TYPE)', see Makefile for options)
endif
ifeq ($(WITH_SANITIZERS),yes)
PG_CFLAGS += -fsanitize=address -fsanitize=undefined -fno-sanitize-recover
COPT += -Wno-error # to avoid failing on warnings induced by sanitizers
PG_LDFLAGS = -fsanitize=address -fsanitize=undefined -static-libasan -static-libubsan $(LDFLAGS)
export CC := gcc
export ASAN_OPTIONS := detect_leaks=0
endif
ifeq ($(shell test -e /home/nonroot/.docker_build && echo -n yes),yes)
# Exclude static build openssl, icu for local build (MacOS, Linux)
# Only keep for build type release and debug
PG_CONFIGURE_OPTS += --with-icu
PG_CONFIGURE_OPTS += ICU_CFLAGS='-I/$(ICU_PREFIX_DIR)/include -DU_STATIC_IMPLEMENTATION'
PG_CONFIGURE_OPTS += ICU_LIBS='-L$(ICU_PREFIX_DIR)/lib -L$(ICU_PREFIX_DIR)/lib64 -licui18n -licuuc -licudata -lstdc++ -Wl,-Bdynamic -lm'
endif
UNAME_S := $(shell uname -s)
ifeq ($(UNAME_S),Linux)
# Seccomp BPF is only available for Linux
ifneq ($(WITH_SANITIZERS),yes)
PG_CONFIGURE_OPTS += --with-libseccomp
endif
else ifeq ($(UNAME_S),Darwin)
PG_CFLAGS += -DUSE_PREFETCH
ifndef DISABLE_HOMEBREW
# macOS with brew-installed openssl requires explicit paths
# It can be configured with OPENSSL_PREFIX variable
OPENSSL_PREFIX := $(shell brew --prefix openssl@3)
PG_CONFIGURE_OPTS += --with-includes=$(OPENSSL_PREFIX)/include --with-libraries=$(OPENSSL_PREFIX)/lib
PG_CONFIGURE_OPTS += PKG_CONFIG_PATH=$(shell brew --prefix icu4c)/lib/pkgconfig
# macOS already has bison and flex in the system, but they are old and result in postgres-v14 target failure
# brew formulae are keg-only and not symlinked into HOMEBREW_PREFIX, force their usage
EXTRA_PATH_OVERRIDES += $(shell brew --prefix bison)/bin/:$(shell brew --prefix flex)/bin/:
endif
endif
# Use -C option so that when PostgreSQL "make install" installs the
# headers, the mtime of the headers are not changed when there have
# been no changes to the files. Changing the mtime triggers an
# unnecessary rebuild of 'postgres_ffi'.
PG_CONFIGURE_OPTS += INSTALL='$(ROOT_PROJECT_DIR)/scripts/ninstall.sh -C'
# Choose whether we should be silent or verbose
CARGO_BUILD_FLAGS += --$(if $(filter s,$(MAKEFLAGS)),quiet,verbose)
# Fix for a corner case when make doesn't pass a jobserver
CARGO_BUILD_FLAGS += $(filter -j1,$(MAKEFLAGS))
# This option has a side effect of passing make jobserver to cargo.
# However, we shouldn't do this if `make -n` (--dry-run) has been asked.
CARGO_CMD_PREFIX += $(if $(filter n,$(MAKEFLAGS)),,+)
# Force cargo not to print progress bar
CARGO_CMD_PREFIX += CARGO_TERM_PROGRESS_WHEN=never CI=1
CACHEDIR_TAG_CONTENTS := "Signature: 8a477f597d28d172789f06886806bc55"
#
# Top level Makefile to build Neon and PostgreSQL
#
.PHONY: all
all: neon postgres neon-pg-ext
### Neon Rust bits
#
# The 'postgres_ffi' depends on the Postgres headers.
.PHONY: neon
neon: postgres-headers walproposer-lib cargo-target-dir
+@echo "Compiling Neon"
$(CARGO_CMD_PREFIX) cargo build $(CARGO_BUILD_FLAGS)
.PHONY: cargo-target-dir
cargo-target-dir:
# https://github.com/rust-lang/cargo/issues/14281
mkdir -p target
test -e target/CACHEDIR.TAG || echo "$(CACHEDIR_TAG_CONTENTS)" > target/CACHEDIR.TAG
### PostgreSQL parts
# Some rules are duplicated for Postgres v14 and 15. We may want to refactor
# to avoid the duplication in the future, but it's tolerable for now.
#
$(POSTGRES_INSTALL_DIR)/build/%/config.status:
mkdir -p $(POSTGRES_INSTALL_DIR)
test -e $(POSTGRES_INSTALL_DIR)/CACHEDIR.TAG || echo "$(CACHEDIR_TAG_CONTENTS)" > $(POSTGRES_INSTALL_DIR)/CACHEDIR.TAG
+@echo "Configuring Postgres $* build"
@test -s $(ROOT_PROJECT_DIR)/vendor/postgres-$*/configure || { \
echo "\nPostgres submodule not found in $(ROOT_PROJECT_DIR)/vendor/postgres-$*/, execute "; \
echo "'git submodule update --init --recursive --depth 2 --progress .' in project root.\n"; \
exit 1; }
mkdir -p $(POSTGRES_INSTALL_DIR)/build/$*
VERSION=$*; \
EXTRA_VERSION=$$(cd $(ROOT_PROJECT_DIR)/vendor/postgres-$$VERSION && git rev-parse HEAD); \
(cd $(POSTGRES_INSTALL_DIR)/build/$$VERSION && \
env PATH="$(EXTRA_PATH_OVERRIDES):$$PATH" $(ROOT_PROJECT_DIR)/vendor/postgres-$$VERSION/configure \
CFLAGS='$(PG_CFLAGS)' LDFLAGS='$(PG_LDFLAGS)' \
$(PG_CONFIGURE_OPTS) --with-extra-version=" ($$EXTRA_VERSION)" \
--prefix=$(abspath $(POSTGRES_INSTALL_DIR))/$$VERSION > configure.log)
# nicer alias to run 'configure'
# Note: I've been unable to use templates for this part of our configuration.
# I'm not sure why it wouldn't work, but this is the only place (apart from
# the "build-all-versions" entry points) where direct mention of PostgreSQL
# versions is used.
.PHONY: postgres-configure-v17
postgres-configure-v17: $(POSTGRES_INSTALL_DIR)/build/v17/config.status
.PHONY: postgres-configure-v16
postgres-configure-v16: $(POSTGRES_INSTALL_DIR)/build/v16/config.status
.PHONY: postgres-configure-v15
postgres-configure-v15: $(POSTGRES_INSTALL_DIR)/build/v15/config.status
.PHONY: postgres-configure-v14
postgres-configure-v14: $(POSTGRES_INSTALL_DIR)/build/v14/config.status
# Install the PostgreSQL header files into $(POSTGRES_INSTALL_DIR)/<version>/include
.PHONY: postgres-headers-%
postgres-headers-%: postgres-configure-%
+@echo "Installing PostgreSQL $* headers"
$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/src/include MAKELEVEL=0 install
# Compile and install PostgreSQL
.PHONY: postgres-%
postgres-%: postgres-configure-% \
postgres-headers-% # to prevent `make install` conflicts with neon's `postgres-headers`
+@echo "Compiling PostgreSQL $*"
$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$* MAKELEVEL=0 install
+@echo "Compiling libpq $*"
$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/src/interfaces/libpq install
+@echo "Compiling pg_prewarm $*"
$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/pg_prewarm install
+@echo "Compiling pg_buffercache $*"
$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/pg_buffercache install
+@echo "Compiling pg_visibility $*"
$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/pg_visibility install
+@echo "Compiling pageinspect $*"
$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/pageinspect install
+@echo "Compiling pg_trgm $*"
$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/pg_trgm install
+@echo "Compiling amcheck $*"
$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/amcheck install
+@echo "Compiling test_decoding $*"
$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/test_decoding install
.PHONY: postgres-clean-%
postgres-clean-%:
$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$* MAKELEVEL=0 clean
$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/pg_buffercache clean
$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/pageinspect clean
$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/src/interfaces/libpq clean
.PHONY: postgres-check-%
postgres-check-%: postgres-%
$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$* MAKELEVEL=0 check
.PHONY: neon-pg-ext-%
neon-pg-ext-%: postgres-%
+@echo "Compiling neon $*"
mkdir -p $(POSTGRES_INSTALL_DIR)/build/neon-$*
$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config COPT='$(COPT)' \
-C $(POSTGRES_INSTALL_DIR)/build/neon-$* \
-f $(ROOT_PROJECT_DIR)/pgxn/neon/Makefile install
+@echo "Compiling neon_walredo $*"
mkdir -p $(POSTGRES_INSTALL_DIR)/build/neon-walredo-$*
$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config COPT='$(COPT)' \
-C $(POSTGRES_INSTALL_DIR)/build/neon-walredo-$* \
-f $(ROOT_PROJECT_DIR)/pgxn/neon_walredo/Makefile install
+@echo "Compiling neon_rmgr $*"
mkdir -p $(POSTGRES_INSTALL_DIR)/build/neon-rmgr-$*
$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config COPT='$(COPT)' \
-C $(POSTGRES_INSTALL_DIR)/build/neon-rmgr-$* \
-f $(ROOT_PROJECT_DIR)/pgxn/neon_rmgr/Makefile install
+@echo "Compiling neon_test_utils $*"
mkdir -p $(POSTGRES_INSTALL_DIR)/build/neon-test-utils-$*
$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config COPT='$(COPT)' \
-C $(POSTGRES_INSTALL_DIR)/build/neon-test-utils-$* \
-f $(ROOT_PROJECT_DIR)/pgxn/neon_test_utils/Makefile install
+@echo "Compiling neon_utils $*"
mkdir -p $(POSTGRES_INSTALL_DIR)/build/neon-utils-$*
$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config COPT='$(COPT)' \
-C $(POSTGRES_INSTALL_DIR)/build/neon-utils-$* \
-f $(ROOT_PROJECT_DIR)/pgxn/neon_utils/Makefile install
.PHONY: neon-pg-clean-ext-%
neon-pg-clean-ext-%:
$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config \
-C $(POSTGRES_INSTALL_DIR)/build/neon-$* \
-f $(ROOT_PROJECT_DIR)/pgxn/neon/Makefile clean
$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config \
-C $(POSTGRES_INSTALL_DIR)/build/neon-walredo-$* \
-f $(ROOT_PROJECT_DIR)/pgxn/neon_walredo/Makefile clean
$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config \
-C $(POSTGRES_INSTALL_DIR)/build/neon-test-utils-$* \
-f $(ROOT_PROJECT_DIR)/pgxn/neon_test_utils/Makefile clean
$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config \
-C $(POSTGRES_INSTALL_DIR)/build/neon-utils-$* \
-f $(ROOT_PROJECT_DIR)/pgxn/neon_utils/Makefile clean
# Build walproposer as a static library. walproposer source code is located
# in the pgxn/neon directory.
#
# We also need to include libpgport.a and libpgcommon.a, because walproposer
# uses some functions from those libraries.
#
# Some object files are removed from libpgport.a and libpgcommon.a because
# they depend on openssl and other libraries that are not included in our
# Rust build.
.PHONY: walproposer-lib
walproposer-lib: neon-pg-ext-v17
+@echo "Compiling walproposer-lib"
mkdir -p $(POSTGRES_INSTALL_DIR)/build/walproposer-lib
$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/v17/bin/pg_config COPT='$(COPT)' \
-C $(POSTGRES_INSTALL_DIR)/build/walproposer-lib \
-f $(ROOT_PROJECT_DIR)/pgxn/neon/Makefile walproposer-lib
cp $(POSTGRES_INSTALL_DIR)/v17/lib/libpgport.a $(POSTGRES_INSTALL_DIR)/build/walproposer-lib
cp $(POSTGRES_INSTALL_DIR)/v17/lib/libpgcommon.a $(POSTGRES_INSTALL_DIR)/build/walproposer-lib
$(AR) d $(POSTGRES_INSTALL_DIR)/build/walproposer-lib/libpgport.a \
pg_strong_random.o
$(AR) d $(POSTGRES_INSTALL_DIR)/build/walproposer-lib/libpgcommon.a \
checksum_helper.o \
cryptohash_openssl.o \
hmac_openssl.o \
md5_common.o \
parse_manifest.o \
scram-common.o
ifeq ($(UNAME_S),Linux)
$(AR) d $(POSTGRES_INSTALL_DIR)/build/walproposer-lib/libpgcommon.a \
pg_crc32c.o
endif
.PHONY: walproposer-lib-clean
walproposer-lib-clean:
$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/v17/bin/pg_config \
-C $(POSTGRES_INSTALL_DIR)/build/walproposer-lib \
-f $(ROOT_PROJECT_DIR)/pgxn/neon/Makefile clean
.PHONY: neon-pg-ext
neon-pg-ext: \
neon-pg-ext-v14 \
neon-pg-ext-v15 \
neon-pg-ext-v16 \
neon-pg-ext-v17
.PHONY: neon-pg-clean-ext
neon-pg-clean-ext: \
neon-pg-clean-ext-v14 \
neon-pg-clean-ext-v15 \
neon-pg-clean-ext-v16 \
neon-pg-clean-ext-v17
# shorthand to build all Postgres versions
.PHONY: postgres
postgres: \
postgres-v14 \
postgres-v15 \
postgres-v16 \
postgres-v17
.PHONY: postgres-headers
postgres-headers: \
postgres-headers-v14 \
postgres-headers-v15 \
postgres-headers-v16 \
postgres-headers-v17
.PHONY: postgres-clean
postgres-clean: \
postgres-clean-v14 \
postgres-clean-v15 \
postgres-clean-v16 \
postgres-clean-v17
.PHONY: postgres-check
postgres-check: \
postgres-check-v14 \
postgres-check-v15 \
postgres-check-v16 \
postgres-check-v17
# This doesn't remove the effects of 'configure'.
.PHONY: clean
clean: postgres-clean neon-pg-clean-ext
$(MAKE) -C compute clean
$(CARGO_CMD_PREFIX) cargo clean
# This removes everything
.PHONY: distclean
distclean:
$(RM) -r $(POSTGRES_INSTALL_DIR)
$(CARGO_CMD_PREFIX) cargo clean
.PHONY: fmt
fmt:
./pre-commit.py --fix-inplace
postgres-%-pg-bsd-indent: postgres-%
+@echo "Compiling pg_bsd_indent"
$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/src/tools/pg_bsd_indent/
# Create typedef list for the core. Note that generally it should be combined with
# buildfarm one to cover platform specific stuff.
# https://wiki.postgresql.org/wiki/Running_pgindent_on_non-core_code_or_development_code
postgres-%-typedefs.list: postgres-%
$(ROOT_PROJECT_DIR)/vendor/postgres-$*/src/tools/find_typedef $(POSTGRES_INSTALL_DIR)/$*/bin > $@
# Indent postgres. See src/tools/pgindent/README for details.
.PHONY: postgres-%-pgindent
postgres-%-pgindent: postgres-%-pg-bsd-indent postgres-%-typedefs.list
+@echo merge with buildfarm typedef to cover all platforms
+@echo note: I first tried to download from pgbuildfarm.org, but for unclear reason e.g. \
REL_16_STABLE list misses PGSemaphoreData
# wget -q -O - "http://www.pgbuildfarm.org/cgi-bin/typedefs.pl?branch=REL_16_STABLE" |\
# cat - postgres-$*-typedefs.list | sort | uniq > postgres-$*-typedefs-full.list
cat $(ROOT_PROJECT_DIR)/vendor/postgres-$*/src/tools/pgindent/typedefs.list |\
cat - postgres-$*-typedefs.list | sort | uniq > postgres-$*-typedefs-full.list
+@echo note: you might want to run it on selected files/dirs instead.
INDENT=$(POSTGRES_INSTALL_DIR)/build/$*/src/tools/pg_bsd_indent/pg_bsd_indent \
$(ROOT_PROJECT_DIR)/vendor/postgres-$*/src/tools/pgindent/pgindent --typedefs postgres-$*-typedefs-full.list \
$(ROOT_PROJECT_DIR)/vendor/postgres-$*/src/ \
--excludes $(ROOT_PROJECT_DIR)/vendor/postgres-$*/src/tools/pgindent/exclude_file_patterns
$(RM) pg*.BAK
# Indent pxgn/neon.
.PHONY: neon-pgindent
neon-pgindent: postgres-v17-pg-bsd-indent neon-pg-ext-v17
$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/v17/bin/pg_config COPT='$(COPT)' \
FIND_TYPEDEF=$(ROOT_PROJECT_DIR)/vendor/postgres-v17/src/tools/find_typedef \
INDENT=$(POSTGRES_INSTALL_DIR)/build/v17/src/tools/pg_bsd_indent/pg_bsd_indent \
PGINDENT_SCRIPT=$(ROOT_PROJECT_DIR)/vendor/postgres-v17/src/tools/pgindent/pgindent \
-C $(POSTGRES_INSTALL_DIR)/build/neon-v17 \
-f $(ROOT_PROJECT_DIR)/pgxn/neon/Makefile pgindent
.PHONY: setup-pre-commit-hook
setup-pre-commit-hook:
ln -s -f $(ROOT_PROJECT_DIR)/pre-commit.py .git/hooks/pre-commit
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