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Use -mthumb when building for arm

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This commit is contained in:
Fredrik Fornwall 2017-01-19 03:58:44 +01:00
parent 31f93d1355
commit c9e68e0d9c
1 changed files with 4 additions and 4 deletions
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build-package.sh
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@ -462,10 +462,10 @@ termux_step_setup_toolchain() {
# and no longer remove DT_RUNPATH in termux-elf-cleaner.
if [ "$TERMUX_ARCH" = "arm" ]; then
CFLAGS+=" -march=armv7-a -mfpu=neon -mfloat-abi=softfp"
# "first flag instructs the linker to pick libgcc.a, libgcov.a, and
# crt*.o, which are tailored for armv7-a"
# - https://developer.android.com/ndk/guides/standalone_toolchain.html
# https://developer.android.com/ndk/guides/standalone_toolchain.html#abi_compatibility:
# "We recommend using the -mthumb compiler flag to force the generation of 16-bit Thumb-2 instructions".
# With r13 of the ndk ruby 2.4.0 segfaults when built on arm with clang without -mthumb.
CFLAGS+=" -march=armv7-a -mfpu=neon -mfloat-abi=softfp -mthumb"
LDFLAGS+=" -march=armv7-a -Wl,--fix-cortex-a8"
elif [ "$TERMUX_ARCH" = "i686" ]; then
# From $NDK/docs/CPU-ARCH-ABIS.html: