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X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR11MB7007 X-OriginatorOrg: intel.com Content-Transfer-Encoding: quoted-printable X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces~public-inbox=simark.ca@sourceware.org > -----Original Message----- > From: Schimpe, Christina > Sent: Friday, December 20, 2024 9:05 PM > To: gdb-patches@sourceware.org > Subject: [PATCH 00/12] Add CET shadow stack support > = > Hi all, > = > this is a series to add amd64 shadow stack support to GDB on linux. > Shadow stack is part of the Control-flow Enforcement Technology (CET) by = Intel. > = > Intel's CET provides the two capabilities to defend against ROP/COP/JOP = style > control-flow subversion attacks: shadow stack and indirect branch trackin= g (IBT). > = > While there is linux kernel support for CET shadow stack in userspace, th= ere is no > linux kernel support available for userspace IBT, yet. > This series therefore focuses on CET shadow stack only. > = > I am looking forward to your feedback! > = > Regards, > Christina > = > = > Felix Willgerodt (1): > gdb, bfd: amd64 linux coredump support with shadow stack. > = > Schimpe, Christina (11): > gdb, testsuite: Rename set_sanitizer_default to append_environment. > gdbserver: Add optional runtime register set type. > gdbserver: Add assert in x86_linux_read_description. > gdb: Sync up x86-gcc-cpuid.h with cpuid.h from gcc 14 branch. > gdb, gdbserver: Use xstate_bv for target description creation on x86. > gdb, gdbserver: Add support of Intel shadow stack pointer register. > gdb: Handle shadow stack pointer register unwinding for amd64 linux. > gdb, gdbarch: Enable inferior calls for shadow stack support. > gdb: Implement amd64 linux shadow stack support for inferior calls. > gdb, gdbarch: Introduce gdbarch method to get the shadow stack > pointer. > gdb: Enable displaced stepping with shadow stack on amd64 linux. > = > bfd/elf.c | 24 +++ > gdb/amd64-linux-nat.c | 17 ++ > gdb/amd64-linux-tdep.c | 197 +++++++++++++++++- > gdb/amd64-tdep.c | 32 ++- > gdb/amd64-tdep.h | 9 +- > gdb/arch-utils.c | 8 + > gdb/arch-utils.h | 5 + > gdb/arch/amd64-linux-tdesc.c | 33 +-- > gdb/arch/amd64-linux-tdesc.h | 7 +- > gdb/arch/amd64.c | 25 ++- > gdb/arch/amd64.h | 10 +- > gdb/arch/i386-linux-tdesc.c | 29 +-- > gdb/arch/i386-linux-tdesc.h | 5 +- > gdb/arch/i386.c | 19 +- > gdb/arch/i386.h | 8 +- > gdb/arch/x86-linux-tdesc-features.c | 56 ++--- > gdb/arch/x86-linux-tdesc-features.h | 25 ++- > gdb/doc/gdb.texinfo | 42 ++++ > gdb/features/Makefile | 2 + > gdb/features/i386/32bit-ssp.c | 14 ++ > gdb/features/i386/32bit-ssp.xml | 11 + > gdb/features/i386/64bit-ssp.c | 14 ++ > gdb/features/i386/64bit-ssp.xml | 11 + > gdb/gdbarch-gen.c | 54 +++++ > gdb/gdbarch-gen.h | 20 ++ > gdb/gdbarch_components.py | 26 +++ > gdb/i386-tdep.c | 44 +++- > gdb/i386-tdep.h | 11 +- > gdb/infcall.c | 6 + > gdb/linux-tdep.c | 47 +++++ > gdb/linux-tdep.h | 7 + > gdb/nat/x86-gcc-cpuid.h | 153 +++++++++++--- > gdb/nat/x86-linux-tdesc.c | 20 +- > gdb/nat/x86-linux-tdesc.h | 7 +- > gdb/nat/x86-linux.c | 55 +++++ > gdb/nat/x86-linux.h | 4 + > .../gdb.arch/amd64-shadow-stack-cmds.exp | 141 +++++++++++++ > .../gdb.arch/amd64-shadow-stack-corefile.exp | 50 +++++ > .../gdb.arch/amd64-shadow-stack-disp-step.exp | 84 ++++++++ > gdb/testsuite/gdb.arch/amd64-shadow-stack.c | 35 ++++ > gdb/testsuite/gdb.arch/amd64-ssp.exp | 50 +++++ > .../gdb.base/inline-frame-cycle-unwind.py | 4 + > gdb/testsuite/gdb.base/libsegfault.exp | 2 +- > .../gdb.threads/attach-slow-waitpid.exp | 2 +- > gdb/testsuite/lib/gdb.exp | 77 ++++++- > gdb/x86-linux-nat.c | 51 ++++- > gdb/x86-linux-nat.h | 11 + > gdb/x86-tdep.c | 22 ++ > gdb/x86-tdep.h | 9 + > gdbserver/i387-fp.cc | 40 ++-- > gdbserver/linux-amd64-ipa.cc | 10 +- > gdbserver/linux-i386-ipa.cc | 6 +- > gdbserver/linux-low.cc | 40 ++-- > gdbserver/linux-low.h | 7 +- > gdbserver/linux-x86-low.cc | 44 +++- > gdbsupport/x86-xstate.h | 7 +- > 56 files changed, 1537 insertions(+), 212 deletions(-) create mode 1006= 44 > gdb/features/i386/32bit-ssp.c create mode 100644 gdb/features/i386/32bit- > ssp.xml create mode 100644 gdb/features/i386/64bit-ssp.c create mode 10= 0644 > gdb/features/i386/64bit-ssp.xml create mode 100644 > gdb/testsuite/gdb.arch/amd64-shadow-stack-cmds.exp > create mode 100644 gdb/testsuite/gdb.arch/amd64-shadow-stack-corefile.exp > create mode 100644 gdb/testsuite/gdb.arch/amd64-shadow-stack-disp- > step.exp > create mode 100644 gdb/testsuite/gdb.arch/amd64-shadow-stack.c > create mode 100644 gdb/testsuite/gdb.arch/amd64-ssp.exp > = > -- > 2.34.1 > = > Intel Deutschland GmbH > Registered Address: Am Campeon 10, 85579 Neubiberg, Germany > Tel: +49 89 99 8853-0, www.intel.de > Managing Directors: Sean Fennelly, Jeffrey Schneiderman, Tiffany Doon Sil= va > Chairperson of the Supervisory Board: Nicole Lau Registered Office: Munich > Commercial Register: Amtsgericht Muenchen HRB 186928 Kindly pinging for feedback. Best Regards, Christina Intel Deutschland GmbH Registered Address: Am Campeon 10, 85579 Neubiberg, Germany Tel: +49 89 99 8853-0, www.intel.de Managing Directors: Sean Fennelly, Jeffrey Schneiderman, Tiffany Doon Silva Chairperson of the Supervisory Board: Nicole Lau Registered Office: Munich Commercial Register: Amtsgericht Muenchen HRB 186928