libc/AOR_v20.02/config.mk

   1 # Example config.mk
   2 #
   3 # Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 # See https://llvm.org/LICENSE.txt for license information.
   5 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6
   7 # Subprojects to build
   8 # For now, LLVM-libc project will focus only "math" functions.
   9 SUBS = math # string networking
  10
  11 # Target architecture: aarch64, arm or x86_64
  12 # For now, LLVM-libc project will focus on x86_64 only.
  13 ARCH = x86_64
  14
  15 # Compiler for the target
  16 CC = $(CROSS_COMPILE)gcc
  17 CFLAGS = -std=c99 -pipe -O3
  18 CFLAGS += -Wall -Wno-missing-braces
  19 CFLAGS += -Werror=implicit-function-declaration
  20
  21 # Used for test case generator that is executed on the host
  22 HOST_CC = gcc
  23 HOST_CFLAGS = -std=c99 -O2
  24 HOST_CFLAGS += -Wall -Wno-unused-function
  25
  26 # Enable debug info.
  27 HOST_CFLAGS += -g
  28 CFLAGS += -g
  29
  30 # Optimize the shared libraries on aarch64 assuming they fit in 1M.
  31 #CFLAGS_SHARED = -fPIC -mcmodel=tiny
  32
  33 # Use for cross compilation with gcc.
  34 #CROSS_COMPILE = aarch64-none-linux-gnu-
  35
  36 # Use with cross testing.
  37 #EMULATOR = qemu-aarch64-static
  38 #EMULATOR = sh -c 'scp $$1 user@host:/dir && ssh user@host /dir/"$$@"' --
  39
  40 # Additional flags for subprojects.
  41 math-cflags =
  42 math-ldlibs =
  43 math-ulpflags =
  44 math-testflags =
  45 string-cflags =
  46 networking-cflags =
  47
  48 # Use if mpfr is available on the target for ulp error checking.
  49 #math-ldlibs += -lmpfr -lgmp
  50 #math-cflags += -DUSE_MPFR
  51
  52 # Use with gcc.
  53 math-cflags += -frounding-math -fexcess-precision=standard -fno-stack-protector
  54 math-cflags += -ffp-contract=fast -fno-math-errno
  55
  56 # Use with clang.
  57 #math-cflags += -ffp-contract=fast
  58
  59 # Disable vector math code
  60 #math-cflags += -DWANT_VMATH=0
  61
  62 # Disable fenv checks
  63 #math-ulpflags = -q -f
  64 #math-testflags = -nostatus
  65
  66 # Enable assertion checks.
  67 #networking-cflags += -DWANT_ASSERT
  68
  69 # Avoid auto-vectorization of scalar code and unroll loops
  70 networking-cflags += -O2 -fno-tree-vectorize -funroll-loops