* Android uses a customized version of shared memory managemnt known as ashmem. libandroid-shmem wraps SYSV shared
memory calls to standard ashmem operations. Use it with `LDFLAGS+=" -landroid-shmem`.
-* SYSV semaphore libc wrappers (semget(2), semop(2) and others) aren't available. Direct syscalls can be used with
- `CFLAGS+=" -DTERMUX_SEMOPS_STUBS=1"`. Using this requires privelege escalation i.e. only root can do it. Use
- unnamed POSIX semaphores instead (named semaphores are unimplemented).
+* SYSV semaphores (semget(2), semop(2) and others) aren't available.
+ Use unnamed POSIX semaphores instead (named semaphores are unimplemented).
dlopen() and RTLD_* flags
=================================
TERMUX_STANDALONE_TOOLCHAIN="$TERMUX_TOPDIR/_lib/toolchain-${TERMUX_ARCH}-ndk${TERMUX_NDK_VERSION}-api${TERMUX_API_LEVEL}"
# Bump the below version if a change is made in toolchain setup to ensure
# that everyone gets an updated toolchain:
- TERMUX_STANDALONE_TOOLCHAIN+="-v16"
+ TERMUX_STANDALONE_TOOLCHAIN+="-v17"
export TERMUX_TAR="tar"
export TERMUX_TOUCH="touch"
# ifaddrs.h: Added in android-24 unified headers, use a inline implementation for now.
cp "$TERMUX_SCRIPTDIR"/ndk_patches/{elf.h,sysexits.h,ifaddrs.h} $_TERMUX_TOOLCHAIN_TMPDIR/sysroot/usr/include
- # Remove <sys/shm.h> from the NDK in favour of that from the libandroid-shmem:
- rm $_TERMUX_TOOLCHAIN_TMPDIR/sysroot/usr/include/sys/shm.h
+ # Remove <sys/shm.h> from the NDK in favour of that from the libandroid-shmem.
+ # Also remove <sys/sem.h> as it doesn't work for non-root.
+ rm $_TERMUX_TOOLCHAIN_TMPDIR/sysroot/usr/include/sys/{shm.h,sem.h}
local _LIBDIR=usr/lib
if [ $TERMUX_ARCH = x86_64 ]; then _LIBDIR+=64; fi
TERMUX_PKG_EXTRA_MAKE_ARGS=" -s"
termux_step_pre_configure () {
- # to use shmem and sem stubs
- CFLAGS+=" -DTERMUX_SEMOPS_STUBS=1"
LDFLAGS+=" -llog"
}
-
+++ /dev/null
---- /home/vishal/Android/Sdk/ndk-bundle/platforms/android-21/arch-arm/usr/include/sys/sem.h 2016-10-12 15:11:58.000000000 +0530
-+++ ./usr/include/sys/sem.h 2017-01-24 08:23:25.150726158 +0530
-@@ -31,4 +31,14 @@
-
- #include <linux/sem.h>
-
-+#ifdef TERMUX_SEMOPS_STUBS
-+
-+#include <sys/syscall.h>
-+
-+#define semop(semid, sops, nsops) syscall(__NR_semop, semid, sops, nsops)
-+#define semget(key, nsems, semflg) syscall(__NR_semget, key, nsems, semflg)
-+#define semctl(semid, semnum, cmd, ...) syscall(__NR_semctl, semid, semnum, cmd, __VA_ARGS__)
-+
-+#endif /* TERMUX_SEMOPS_STUBS */
-+
- #endif /* _SYS_SEM_H_ */