cosmopolitan/libc/elf/elf.mk
Justine Tunney 9f68d6eee9 Fix link order in cosmopolitan.a
It turned out that the linker was doing the wrong with the amalgamation
library concerning weak stubs. A regression test has been added and new
binaries have been uploaded to https://justine.lol/cosmopolitan/

Ideally this should be fixed by building a tool that turns multiple .a
files into a single .a file with deduplication. As a workaround for now
the cosmopolitan.a build is restructured to not include LIBC_STUBS which
meant technical debt needed to be paid off where non-stub interfaces
were moved to LIBC_INTRIN and LIBC_NEXGEN32E.

Thank @PerfectProductions in #31 for the report!
2021-01-16 12:05:41 -08:00

55 lines
1.7 KiB
Makefile

#-*-mode:makefile-gmake;indent-tabs-mode:t;tab-width:8;coding:utf-8-*-┐
#───vi: set et ft=make ts=8 tw=8 fenc=utf-8 :vi───────────────────────┘
PKGS += LIBC_ELF
LIBC_ELF_ARTIFACTS += LIBC_ELF_A
LIBC_ELF = $(LIBC_ELF_A_DEPS) $(LIBC_ELF_A)
LIBC_ELF_A = o/$(MODE)/libc/elf/elf.a
LIBC_ELF_A_FILES := $(wildcard libc/elf/*) $(wildcard libc/elf/struct/*)
LIBC_ELF_A_HDRS = $(filter %.h,$(LIBC_ELF_A_FILES))
LIBC_ELF_A_SRCS_S = $(filter %.S,$(LIBC_ELF_A_FILES))
LIBC_ELF_A_SRCS_C = $(filter %.c,$(LIBC_ELF_A_FILES))
LIBC_ELF_A_SRCS = \
$(LIBC_ELF_A_SRCS_S) \
$(LIBC_ELF_A_SRCS_C)
LIBC_ELF_A_OBJS = \
$(LIBC_ELF_A_SRCS_S:%.S=o/$(MODE)/%.o) \
$(LIBC_ELF_A_SRCS_C:%.c=o/$(MODE)/%.o)
LIBC_ELF_A_CHECKS = \
$(LIBC_ELF_A).pkg \
$(LIBC_ELF_A_HDRS:%=o/$(MODE)/%.ok)
LIBC_ELF_A_DIRECTDEPS = \
LIBC_INTRIN \
LIBC_NEXGEN32E \
LIBC_STR \
LIBC_STUBS
LIBC_ELF_A_DEPS := \
$(call uniq,$(foreach x,$(LIBC_ELF_A_DIRECTDEPS),$($(x))))
$(LIBC_ELF_A): libc/elf/ \
$(LIBC_ELF_A).pkg \
$(LIBC_ELF_A_OBJS)
$(LIBC_ELF_A).pkg: \
$(LIBC_ELF_A_OBJS) \
$(foreach x,$(LIBC_ELF_A_DIRECTDEPS),$($(x)_A).pkg)
o/libc/elf/elf.lds: \
libc/elf/elf.lds \
ape/relocations.h
LIBC_ELF_LIBS = $(foreach x,$(LIBC_ELF_ARTIFACTS),$($(x)))
LIBC_ELF_SRCS = $(foreach x,$(LIBC_ELF_ARTIFACTS),$($(x)_SRCS))
LIBC_ELF_HDRS = $(foreach x,$(LIBC_ELF_ARTIFACTS),$($(x)_HDRS))
LIBC_ELF_CHECKS = $(foreach x,$(LIBC_ELF_ARTIFACTS),$($(x)_CHECKS))
LIBC_ELF_OBJS = $(foreach x,$(LIBC_ELF_ARTIFACTS),$($(x)_OBJS))
$(LIBC_ELF_OBJS): $(BUILD_FILES) libc/elf/elf.mk
.PHONY: o/$(MODE)/libc/elf
o/$(MODE)/libc/elf: $(LIBC_ELF_CHECKS)