glibc/sysdeps/unix/sysv/linux/arm/localplt.data

libc.so: calloc
libc.so: free
libc.so: malloc
libc.so: memalign
libc.so: raise
libc.so: realloc
libm.so: matherr
libpthread.so: __errno_location
libpthread.so: raise
# The dynamic loader needs __tls_get_addr for TLS, and uses __libc_memalign
# internally to allocate aligned TLS storage. The other malloc family of
# functions are expected to allow user symbol interposition.
ld.so: __tls_get_addr
ld.so: __libc_memalign
ld.so: malloc
ld.so: calloc
ld.so: realloc
ld.so: free
* data/c++-types-arm-linux-gnueabi.data: New. * data/localplt-arm-linux-gnueabi.data: New. * sysdeps/arm/bsd-_setjmp.S: Use HIDDEN_JUMPTARGET to call __sigsetjmp. * sysdeps/arm/bsd-setjmp.S: Likewise. * sysdeps/arm/eabi/aeabi_localeconv.c: Use __localeconv. * sysdeps/arm/eabi/find_exidx.c (__gnu_Unwind_Find_exidx): Use __dl_iterate_phdr. * sysdeps/arm/eabi/setjmp.S: Add hidden_def (__sigsetjmp). * sysdeps/arm/memmove.S: Use HIDDEN_JUMPTARGET to call memcpy from within libc. * sysdeps/arm/setjmp.S: Add hidden_def (__sigsetjmp). * sysdeps/unix/sysv/linux/arm/clone.S: Use HIDDEN_JUMPTARGET to call _exit. * sysdeps/unix/sysv/linux/arm/ioperm.c (init_iosys): Use __sysctl, __readlink and fgets_unlocked. (_ioperm): Use __open and __close. 2008-08-19 15:59:07 +00:00			`libc.so: calloc`
			`libc.so: free`
			`libc.so: malloc`
			`libc.so: memalign`
			`libc.so: raise`
			`libc.so: realloc`
			`libm.so: matherr`
			`libpthread.so: __errno_location`
			`libpthread.so: raise`
Run check-localpltk/textrel/execstack over ld.so. For maximum paranoia we run ld.so through the normal set of tests for all of the shared libraries. This includes running ld.so through check-localplt, check-textrel, and check-execstack. While none of these should trigger any failures given the way ld.so is built, it might possibly fail if a developer does something wrong. This paranoia was triggered by a discussion over the use of __strcpy vs. strcpy [1] and if the symbol could leak and use the libc.so version. The check-localplt test fails right away because localplt.data needs updating for all arches. By default we add 6 new symbols: __tls_get_addr, __libc_memalign, malloc, calloc, realloc and free. Other machines like i386, power, and s390 require some different symbol sets e.g. ___tls_get_addr vs. __tls_get_addr for i386. Verified for i386 Verified for x86_64 Verified for ppc32 Verified for ppc64 Verified for ppc64le Verified for arm Verified for aarch64 Verified for s390 Verified for s390x Guessed for alpha Guessed for ia64 Guessed for m68k Guessed for microblaze Guessed for sparc32 Guessed for sparc64 Defaults for sh Defaults for mips Defaults for hppa Defaults for tile Machine manintainers notified to double check the data used in localplt.data. [1] https://sourceware.org/ml/libc-alpha/2014-10/msg00548.html 2014-11-06 20:48:44 +00:00			`# The dynamic loader needs __tls_get_addr for TLS, and uses __libc_memalign`
			`# internally to allocate aligned TLS storage. The other malloc family of`
			`# functions are expected to allow user symbol interposition.`
			`ld.so: __tls_get_addr`
			`ld.so: __libc_memalign`
			`ld.so: malloc`
			`ld.so: calloc`
			`ld.so: realloc`
			`ld.so: free`