mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
c7a8cd21e9
This change improves copy_file_range(), sendfile(), splice(), openpty(), closefrom(), close_range(), fadvise() and posix_fadvise() in addition to writing tests that confirm things like errno and seeking behavior across platforms. We now less aggressively polyfill behavior with some of these functions when the platform support isn't available. Please see: https://justine.lol/cosmopolitan/functions.html
208 lines
6.3 KiB
Makefile
208 lines
6.3 KiB
Makefile
#-*-mode:makefile-gmake;indent-tabs-mode:t;tab-width:8;coding:utf-8-*-┐
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#───vi: set et ft=make ts=8 tw=8 fenc=utf-8 :vi───────────────────────┘
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#
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# SYNOPSIS
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#
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# System Call Compatibility Layer
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#
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# DESCRIPTION
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#
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# This package exports a familiar system call interface that works
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# across platforms.
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PKGS += LIBC_CALLS
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LIBC_CALLS_ARTIFACTS += LIBC_CALLS_A
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LIBC_CALLS = $(LIBC_CALLS_A_DEPS) $(LIBC_CALLS_A)
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LIBC_CALLS_A = o/$(MODE)/libc/calls/syscalls.a
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LIBC_CALLS_A_FILES := \
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$(wildcard libc/calls/typedef/*) \
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$(wildcard libc/calls/struct/*) \
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$(wildcard libc/calls/*)
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LIBC_CALLS_A_HDRS = $(filter %.h,$(LIBC_CALLS_A_FILES))
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LIBC_CALLS_A_INCS = $(filter %.inc,$(LIBC_CALLS_A_FILES))
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LIBC_CALLS_A_SRCS_S = $(filter %.S,$(LIBC_CALLS_A_FILES))
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LIBC_CALLS_A_SRCS_C = $(filter %.c,$(LIBC_CALLS_A_FILES))
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LIBC_CALLS_A_SRCS = \
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$(LIBC_CALLS_A_SRCS_S) \
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$(LIBC_CALLS_A_SRCS_C)
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LIBC_CALLS_A_OBJS = \
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$(LIBC_CALLS_A_SRCS_S:%.S=o/$(MODE)/%.o) \
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$(LIBC_CALLS_A_SRCS_C:%.c=o/$(MODE)/%.o)
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LIBC_CALLS_A_CHECKS = \
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$(LIBC_CALLS_A).pkg \
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$(LIBC_CALLS_A_HDRS:%=o/$(MODE)/%.ok)
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LIBC_CALLS_A_DIRECTDEPS = \
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LIBC_FMT \
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LIBC_INTRIN \
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LIBC_NEXGEN32E \
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LIBC_NT_ADVAPI32 \
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LIBC_NT_IPHLPAPI \
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LIBC_NT_KERNEL32 \
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LIBC_NT_NTDLL \
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LIBC_NT_PDH \
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LIBC_NT_PSAPI \
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LIBC_NT_POWRPROF \
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LIBC_NT_WS2_32 \
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LIBC_STR \
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LIBC_STUBS \
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LIBC_SYSV_CALLS \
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LIBC_SYSV
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LIBC_CALLS_A_DEPS := \
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$(call uniq,$(foreach x,$(LIBC_CALLS_A_DIRECTDEPS),$($(x))))
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$(LIBC_CALLS_A): \
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libc/calls/ \
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$(LIBC_CALLS_A).pkg \
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$(LIBC_CALLS_A_OBJS)
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$(LIBC_CALLS_A).pkg: \
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$(LIBC_CALLS_A_OBJS) \
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$(foreach x,$(LIBC_CALLS_A_DIRECTDEPS),$($(x)_A).pkg)
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# we can't use asan because:
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# ucontext_t memory is owned by xnu kernel
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o/$(MODE)/libc/calls/sigenter-xnu.o: private \
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OVERRIDE_COPTS += \
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-ffreestanding \
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-fno-sanitize=address
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# we can't use asan because:
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# vdso memory is owned by linux kernel
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o/$(MODE)/libc/calls/vdsofunc.greg.o: private \
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OVERRIDE_COPTS += \
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-ffreestanding \
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-fno-sanitize=address
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# we can't use asan because:
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# ntspawn allocates 128kb of heap memory via win32
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o/$(MODE)/libc/calls/ntspawn.o \
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o/$(MODE)/libc/calls/mkntcmdline.o \
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o/$(MODE)/libc/calls/mkntenvblock.o: private \
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OVERRIDE_COPTS += \
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-ffreestanding \
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-fno-sanitize=address
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# we can't use sanitizers because:
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# windows owns the data structure
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o/$(MODE)/libc/calls/wincrash.o \
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o/$(MODE)/libc/calls/ntcontext2linux.o: private \
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OVERRIDE_COPTS += \
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-fno-sanitize=all
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# we always want -O3 because:
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# it makes the code size smaller too
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o/$(MODE)/libc/calls/termios2host.o \
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o/$(MODE)/libc/calls/sigenter-freebsd.o \
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o/$(MODE)/libc/calls/sigenter-netbsd.o \
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o/$(MODE)/libc/calls/sigenter-openbsd.o \
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o/$(MODE)/libc/calls/sigenter-xnu.o \
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o/$(MODE)/libc/calls/ntcontext2linux.o: private \
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OVERRIDE_COPTS += \
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-O3
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# we must disable static stack safety because:
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# these functions use alloca(n)
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o/$(MODE)/libc/calls/execl.o \
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o/$(MODE)/libc/calls/execle.o \
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o/$(MODE)/libc/calls/execlp.o \
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o/$(MODE)/libc/calls/statfs.o \
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o/$(MODE)/libc/calls/fstatfs.o \
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o/$(MODE)/libc/calls/execve-sysv.o \
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o/$(MODE)/libc/calls/execve-nt.greg.o \
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o/$(MODE)/libc/calls/mkntenvblock.o: private \
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OVERRIDE_CPPFLAGS += \
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-DSTACK_FRAME_UNLIMITED
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# we must disable static stack safety because:
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# PATH_MAX*sizeof(char16_t)*2 exceeds 4096 byte frame limit
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o/$(MODE)/libc/calls/copyfile.o \
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o/$(MODE)/libc/calls/symlinkat-nt.o \
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o/$(MODE)/libc/calls/readlinkat-nt.o \
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o/$(MODE)/libc/calls/linkat-nt.o \
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o/$(MODE)/libc/calls/renameat-nt.o: private \
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OVERRIDE_CPPFLAGS += \
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-DSTACK_FRAME_UNLIMITED
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# we must segregate codegen because:
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# file contains multiple independently linkable apis
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o/$(MODE)/libc/calls/ioctl-siocgifconf.o \
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o/$(MODE)/libc/calls/ioctl-siocgifconf-nt.o: private \
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OVERRIDE_COPTS += \
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-ffunction-sections \
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-fdata-sections
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# we always want -Os because:
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# va_arg codegen is very bloated in default mode
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o//libc/calls/open.o \
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o//libc/calls/openat.o \
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o//libc/calls/prctl.o \
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o//libc/calls/ioctl.o \
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o//libc/calls/ioctl_default.o \
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o//libc/calls/ioctl_fioclex-nt.o \
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o//libc/calls/ioctl_fioclex.o \
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o//libc/calls/ioctl_siocgifconf-nt.o \
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o//libc/calls/ioctl_siocgifconf.o \
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o//libc/calls/ioctl_tcgets-nt.o \
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o//libc/calls/ioctl_tcgets.o \
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o//libc/calls/ioctl_tcsets-nt.o \
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o//libc/calls/ioctl_tcsets.o \
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o//libc/calls/ioctl_tiocgwinsz-nt.o \
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o//libc/calls/ioctl_tiocgwinsz.o \
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o//libc/calls/ioctl_tiocswinsz-nt.o \
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o//libc/calls/ioctl_tiocswinsz.o \
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o//libc/calls/fcntl.o: private \
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OVERRIDE_CFLAGS += \
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-Os
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# we always want -Os because:
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# it's early runtime mandatory and quite huge without it
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o//libc/calls/getcwd.greg.o \
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o//libc/calls/getcwd-nt.greg.o \
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o//libc/calls/getcwd-xnu.greg.o \
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o//libc/calls/statfs2cosmo.o: private \
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OVERRIDE_CFLAGS += \
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-Os
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# we always want -O2 because:
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# division is expensive if not optimized
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o/$(MODE)/libc/calls/clock.o \
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o/$(MODE)/libc/calls/_timespec_tomillis.o \
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o/$(MODE)/libc/calls/_timespec_tomicros.o \
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o/$(MODE)/libc/calls/_timespec_totimeval.o \
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o/$(MODE)/libc/calls/_timespec_fromnanos.o \
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o/$(MODE)/libc/calls/_timespec_frommillis.o \
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o/$(MODE)/libc/calls/_timespec_frommicros.o: private \
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OVERRIDE_CFLAGS += \
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-O2
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o/$(MODE)/libc/calls/pledge-linux.o \
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o/$(MODE)/libc/calls/unveil.o: private \
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OVERRIDE_CFLAGS += \
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-DSTACK_FRAME_UNLIMITED
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# we want -Os because:
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# it makes a big difference
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# we need pic because:
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# so it can be an LD_PRELOAD payload
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o/$(MODE)/libc/calls/pledge-linux.o: private \
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OVERRIDE_CFLAGS += \
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-Os \
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-fPIC
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LIBC_CALLS_LIBS = $(foreach x,$(LIBC_CALLS_ARTIFACTS),$($(x)))
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LIBC_CALLS_SRCS = $(foreach x,$(LIBC_CALLS_ARTIFACTS),$($(x)_SRCS))
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LIBC_CALLS_HDRS = $(foreach x,$(LIBC_CALLS_ARTIFACTS),$($(x)_HDRS))
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LIBC_CALLS_INCS = $(foreach x,$(LIBC_CALLS_ARTIFACTS),$($(x)_INCS))
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LIBC_CALLS_BINS = $(foreach x,$(LIBC_CALLS_ARTIFACTS),$($(x)_BINS))
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LIBC_CALLS_CHECKS = $(foreach x,$(LIBC_CALLS_ARTIFACTS),$($(x)_CHECKS))
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LIBC_CALLS_OBJS = $(foreach x,$(LIBC_CALLS_ARTIFACTS),$($(x)_OBJS))
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LIBC_CALLS_TESTS = $(foreach x,$(LIBC_CALLS_ARTIFACTS),$($(x)_TESTS))
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.PHONY: o/$(MODE)/libc/calls
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o/$(MODE)/libc/calls: $(LIBC_CALLS_CHECKS)
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