Message ID | cover.1665663395.git.fweimer@redhat.com |
---|---|
Headers |
From: fweimer@redhat.com (Florian Weimer) Date: Thu, 13 Oct 2022 14:20:27 +0200 List-Id: Libc-alpha mailing list <libc-alpha.sourceware.org> Subject: [PATCH 0/3] PTR_MANGLE/PTR_DEMANGLE refactoring Message-ID: <cover.1665663395.git.fweimer@redhat.com> |
Series | PTR_MANGLE/PTR_DEMANGLE refactoring | |
Message
Florian Weimer
Oct. 13, 2022, 12:20 p.m. UTC
These patches define PTR_MANGLE and PTR_DEMANGLE unconditionally for C sources. I looked into providing generic pointer guard support (particularly for ld.so), but that needs a bit more work because we need to special-case the setjmp/longjmp mangling first: the C and assembler side need to be consistent, and if we add generic pointer mangling on the C side, things break. Tested on aarch64-linux-gnu, i686-linux-gnu, powerpc64-linux-gnu, powerpc64le-linux-gnu, s390x-linux-gnu, x86_64-linux-gnu. Built with build-many-glibcs.py. Thanks, Florian Florian Weimer (3): x86-64: Move LP_SIZE definition to its own header Introduce <pointer_guard.h>, extracted from <sysdep.h> Use PTR_MANGLE and PTR_DEMANGLE unconditionally in C sources hurd/sigunwind.c | 4 +- iconv/gconv.c | 4 +- iconv/gconv_cache.c | 6 +- iconv/gconv_db.c | 17 +--- iconv/gconv_dl.c | 4 +- iconv/gconv_trans.c | 3 +- iconv/skeleton.c | 4 +- inet/idna.c | 7 +- libio/iofopncook.c | 13 +-- libio/iofwide.c | 8 +- libio/libioP.h | 3 +- libio/vtables.c | 3 +- misc/unwind-link.c | 11 ++- nss/nss_module.c | 14 +--- stdlib/cxa_atexit.c | 4 +- stdlib/cxa_finalize.c | 5 +- stdlib/cxa_thread_atexit_impl.c | 5 +- stdlib/exit.c | 11 +-- stdlib/on_exit.c | 4 +- sysdeps/aarch64/__longjmp.S | 1 + sysdeps/aarch64/jmpbuf-offsets.h | 3 +- sysdeps/aarch64/setjmp.S | 1 + sysdeps/alpha/__longjmp.S | 1 + sysdeps/alpha/jmpbuf-unwind.h | 3 +- sysdeps/alpha/setjmp.S | 1 + sysdeps/arc/jmpbuf-unwind.h | 3 +- sysdeps/arm/__longjmp.S | 1 + sysdeps/arm/jmpbuf-unwind.h | 3 +- sysdeps/arm/pointer_guard.h | 67 +++++++++++++++ sysdeps/arm/setjmp.S | 1 + sysdeps/arm/sysdep.h | 44 ---------- sysdeps/csky/abiv2/__longjmp.S | 1 + sysdeps/csky/abiv2/setjmp.S | 1 + sysdeps/csky/jmpbuf-unwind.h | 3 +- sysdeps/generic/pointer_guard.h | 29 +++++++ sysdeps/generic/unwind-link.h | 8 +- sysdeps/i386/__longjmp.S | 1 + sysdeps/i386/bsd-_setjmp.S | 1 + sysdeps/i386/bsd-setjmp.S | 1 + sysdeps/i386/jmpbuf-unwind.h | 3 +- sysdeps/i386/setjmp.S | 1 + sysdeps/i386/unwind-arch.h | 6 +- sysdeps/loongarch/__longjmp.S | 1 + sysdeps/loongarch/jmpbuf-unwind.h | 3 +- sysdeps/loongarch/setjmp.S | 1 + sysdeps/m68k/jmpbuf-unwind.h | 3 +- sysdeps/mach/hurd/i386/____longjmp_chk.S | 1 + sysdeps/mach/hurd/i386/__longjmp.S | 1 + sysdeps/mach/hurd/jmp-unwind.c | 4 +- sysdeps/microblaze/jmpbuf-unwind.h | 3 +- sysdeps/mips/jmpbuf-unwind.h | 3 +- sysdeps/nios2/__longjmp.S | 1 + sysdeps/nios2/jmpbuf-offsets.h | 3 +- sysdeps/nios2/setjmp.S | 1 + sysdeps/powerpc/jmpbuf-unwind.h | 3 +- sysdeps/powerpc/powerpc32/__longjmp-common.S | 1 + .../powerpc/powerpc32/fpu/__longjmp-common.S | 1 + sysdeps/powerpc/powerpc32/fpu/setjmp-common.S | 1 + sysdeps/powerpc/powerpc32/setjmp-common.S | 1 + sysdeps/powerpc/powerpc64/__longjmp-common.S | 1 + sysdeps/powerpc/powerpc64/setjmp-common.S | 1 + sysdeps/riscv/jmpbuf-unwind.h | 3 +- sysdeps/s390/jmpbuf-unwind.h | 3 +- sysdeps/s390/s390-32/__longjmp.c | 6 ++ sysdeps/s390/s390-32/setjmp.S | 1 + sysdeps/s390/s390-64/__longjmp.c | 6 ++ sysdeps/s390/s390-64/setjmp.S | 1 + sysdeps/sh/jmpbuf-unwind.h | 3 +- sysdeps/sh/sh3/__longjmp.S | 1 + sysdeps/sh/sh3/setjmp.S | 1 + sysdeps/sh/sh4/__longjmp.S | 1 + sysdeps/sh/sh4/setjmp.S | 1 + sysdeps/sparc/sparc32/__longjmp.S | 1 + sysdeps/sparc/sparc32/jmpbuf-unwind.h | 3 +- sysdeps/sparc/sparc32/setjmp.S | 1 + .../unix/sysv/linux/aarch64/pointer_guard.h | 68 +++++++++++++++ sysdeps/unix/sysv/linux/aarch64/sysdep.h | 45 ---------- .../unix/sysv/linux/alpha/____longjmp_chk.S | 1 + sysdeps/unix/sysv/linux/alpha/pointer_guard.h | 62 ++++++++++++++ sysdeps/unix/sysv/linux/alpha/sysdep.h | 40 --------- sysdeps/unix/sysv/linux/arc/sysdep.h | 4 - sysdeps/unix/sysv/linux/csky/pointer_guard.h | 68 +++++++++++++++ sysdeps/unix/sysv/linux/csky/sysdep.h | 46 ----------- sysdeps/unix/sysv/linux/hppa/sysdep.h | 4 - .../unix/sysv/linux/i386/____longjmp_chk.S | 1 + sysdeps/unix/sysv/linux/i386/pointer_guard.h | 49 +++++++++++ sysdeps/unix/sysv/linux/i386/sysdep.h | 28 ------- sysdeps/unix/sysv/linux/ia64/__ia64_longjmp.S | 1 + sysdeps/unix/sysv/linux/ia64/__longjmp.S | 1 + sysdeps/unix/sysv/linux/ia64/pointer_guard.h | 44 ++++++++++ sysdeps/unix/sysv/linux/ia64/setjmp.S | 1 + sysdeps/unix/sysv/linux/ia64/sysdep.h | 20 ----- .../unix/sysv/linux/loongarch/pointer_guard.h | 82 +++++++++++++++++++ sysdeps/unix/sysv/linux/loongarch/sysdep.h | 60 -------------- sysdeps/unix/sysv/linux/m68k/sysdep.h | 4 - sysdeps/unix/sysv/linux/microblaze/sysdep.h | 4 - sysdeps/unix/sysv/linux/mips/mips32/sysdep.h | 4 - sysdeps/unix/sysv/linux/mips/mips64/sysdep.h | 4 - sysdeps/unix/sysv/linux/nios2/pointer_guard.h | 40 +++++++++ sysdeps/unix/sysv/linux/nios2/sysdep.h | 17 ---- sysdeps/unix/sysv/linux/or1k/sysdep.h | 4 - .../unix/sysv/linux/powerpc/pointer_guard.h | 55 +++++++++++++ sysdeps/unix/sysv/linux/powerpc/sysdep.h | 32 -------- sysdeps/unix/sysv/linux/riscv/sysdep.h | 4 - .../sysv/linux/s390/s390-32/pointer_guard.h | 45 ++++++++++ sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h | 21 ----- .../sysv/linux/s390/s390-64/pointer_guard.h | 47 +++++++++++ sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h | 23 ------ sysdeps/unix/sysv/linux/sh/____longjmp_chk.S | 1 + sysdeps/unix/sysv/linux/sh/pointer_guard.h | 43 ++++++++++ sysdeps/unix/sysv/linux/sh/sysdep.h | 19 ----- .../linux/sparc/sparc32/____longjmp_chk.S | 1 + .../sysv/linux/sparc/sparc32/pointer_guard.h | 44 ++++++++++ .../unix/sysv/linux/sparc/sparc32/sysdep.h | 20 ----- .../sysv/linux/sparc/sparc64/pointer_guard.h | 44 ++++++++++ .../unix/sysv/linux/sparc/sparc64/sysdep.h | 20 ----- .../unix/sysv/linux/x86_64/____longjmp_chk.S | 1 + .../unix/sysv/linux/x86_64/pointer_guard.h | 61 ++++++++++++++ sysdeps/unix/sysv/linux/x86_64/sysdep.h | 40 --------- sysdeps/x86_64/__longjmp.S | 1 + sysdeps/x86_64/jmpbuf-unwind.h | 3 +- sysdeps/x86_64/setjmp.S | 1 + sysdeps/x86_64/sysdep.h | 7 +- sysdeps/x86_64/x32/sysdep.h | 6 +- sysdeps/x86_64/x32/x86-lp_size.h | 23 ++++++ sysdeps/x86_64/x86-lp_size.h | 23 ++++++ wcsmbs/btowc.c | 6 +- wcsmbs/mbrtoc16.c | 4 +- wcsmbs/mbrtoc8.c | 2 - wcsmbs/mbrtowc.c | 4 +- wcsmbs/mbsnrtowcs.c | 4 +- wcsmbs/mbsrtowcs_l.c | 4 +- wcsmbs/wcrtomb.c | 4 +- wcsmbs/wcsnrtombs.c | 4 +- wcsmbs/wcsrtombs.c | 4 +- wcsmbs/wctob.c | 4 +- 136 files changed, 1007 insertions(+), 700 deletions(-) create mode 100644 sysdeps/arm/pointer_guard.h create mode 100644 sysdeps/generic/pointer_guard.h create mode 100644 sysdeps/unix/sysv/linux/aarch64/pointer_guard.h create mode 100644 sysdeps/unix/sysv/linux/alpha/pointer_guard.h create mode 100644 sysdeps/unix/sysv/linux/csky/pointer_guard.h create mode 100644 sysdeps/unix/sysv/linux/i386/pointer_guard.h create mode 100644 sysdeps/unix/sysv/linux/ia64/pointer_guard.h create mode 100644 sysdeps/unix/sysv/linux/loongarch/pointer_guard.h create mode 100644 sysdeps/unix/sysv/linux/nios2/pointer_guard.h create mode 100644 sysdeps/unix/sysv/linux/powerpc/pointer_guard.h create mode 100644 sysdeps/unix/sysv/linux/s390/s390-32/pointer_guard.h create mode 100644 sysdeps/unix/sysv/linux/s390/s390-64/pointer_guard.h create mode 100644 sysdeps/unix/sysv/linux/sh/pointer_guard.h create mode 100644 sysdeps/unix/sysv/linux/sparc/sparc32/pointer_guard.h create mode 100644 sysdeps/unix/sysv/linux/sparc/sparc64/pointer_guard.h create mode 100644 sysdeps/unix/sysv/linux/x86_64/pointer_guard.h create mode 100644 sysdeps/x86_64/x32/x86-lp_size.h create mode 100644 sysdeps/x86_64/x86-lp_size.h base-commit: 15a94e6668a6d7c5697e805d8d67f1d102d0d52e