From: Peter Zijlstra <peterz@infradead.org> To: Sami Tolvanen <samitolvanen@google.com> Cc: Steven Rostedt <rostedt@goodmis.org>, Masahiro Yamada <masahiroy@kernel.org>, Will Deacon <will@kernel.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, "Paul E. McKenney" <paulmck@kernel.org>, Kees Cook <keescook@chromium.org>, Nick Desaulniers <ndesaulniers@google.com>, clang-built-linux@googlegroups.com, kernel-hardening@lists.openwall.com, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, x86@kernel.org, Josh Poimboeuf <jpoimboe@redhat.com>, mhelsley@vmware.com Subject: [RFC][PATCH] objtool,x86_64: Replace recordmcount with objtool Date: Thu, 25 Jun 2020 22:02:35 +0200 Message-ID: <20200625200235.GQ4781@hirez.programming.kicks-ass.net> (raw) In-Reply-To: <20200625161503.GB173089@google.com> On Thu, Jun 25, 2020 at 09:15:03AM -0700, Sami Tolvanen wrote: > On Thu, Jun 25, 2020 at 09:45:30AM +0200, Peter Zijlstra wrote: > > At least for x86_64 I can do a really quick take for a recordmcount pass > > in objtool, but I suppose you also need this for ARM64 ? > > Sure, sounds good. arm64 uses -fpatchable-function-entry with clang, so we > don't need recordmcount there. This is on top of my local pile: git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git master which notably includes the static_call series. Not boot tested, but it generates the required sections and they look more or less as expected, ymmv. --- arch/x86/Kconfig | 1 - scripts/Makefile.build | 3 ++ scripts/link-vmlinux.sh | 2 +- tools/objtool/builtin-check.c | 9 ++--- tools/objtool/builtin.h | 2 +- tools/objtool/check.c | 81 +++++++++++++++++++++++++++++++++++++++++++ tools/objtool/check.h | 1 + tools/objtool/objtool.h | 1 + 8 files changed, 91 insertions(+), 9 deletions(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index a291823f3f26..189575c12434 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -174,7 +174,6 @@ config X86 select HAVE_EXIT_THREAD select HAVE_FAST_GUP select HAVE_FENTRY if X86_64 || DYNAMIC_FTRACE - select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_GRAPH_TRACER select HAVE_FUNCTION_TRACER select HAVE_GCC_PLUGINS diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 2e8810b7e5ed..c774befc57da 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -227,6 +227,9 @@ endif ifdef CONFIG_X86_SMAP objtool_args += --uaccess endif +ifdef CONFIG_DYNAMIC_FTRACE + objtool_args += --mcount +endif # 'OBJECT_FILES_NON_STANDARD := y': skip objtool checking for a directory # 'OBJECT_FILES_NON_STANDARD_foo.o := 'y': skip objtool checking for a file diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index 92dd745906f4..00c6e4f28a1a 100755 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -60,7 +60,7 @@ objtool_link() local objtoolopt; if [ -n "${CONFIG_VMLINUX_VALIDATION}" ]; then - objtoolopt="check" + objtoolopt="check --vmlinux" if [ -z "${CONFIG_FRAME_POINTER}" ]; then objtoolopt="${objtoolopt} --no-fp" fi diff --git a/tools/objtool/builtin-check.c b/tools/objtool/builtin-check.c index 4896c5a89702..a6c3a3fba67d 100644 --- a/tools/objtool/builtin-check.c +++ b/tools/objtool/builtin-check.c @@ -18,7 +18,7 @@ #include "builtin.h" #include "objtool.h" -bool no_fp, no_unreachable, retpoline, module, backtrace, uaccess, stats, validate_dup, vmlinux, fpu; +bool no_fp, no_unreachable, retpoline, module, backtrace, uaccess, stats, validate_dup, vmlinux, fpu, mcount; static const char * const check_usage[] = { "objtool check [<options>] file.o", @@ -36,12 +36,13 @@ const struct option check_options[] = { OPT_BOOLEAN('d', "duplicate", &validate_dup, "duplicate validation for vmlinux.o"), OPT_BOOLEAN('l', "vmlinux", &vmlinux, "vmlinux.o validation"), OPT_BOOLEAN('F', "fpu", &fpu, "validate FPU context"), + OPT_BOOLEAN('M', "mcount", &mcount, "generate __mcount_loc"), OPT_END(), }; int cmd_check(int argc, const char **argv) { - const char *objname, *s; + const char *objname; argc = parse_options(argc, argv, check_options, check_usage, 0); @@ -50,9 +51,5 @@ int cmd_check(int argc, const char **argv) objname = argv[0]; - s = strstr(objname, "vmlinux.o"); - if (s && !s[9]) - vmlinux = true; - return check(objname, false); } diff --git a/tools/objtool/builtin.h b/tools/objtool/builtin.h index 7158e09d4cc9..b51d883ec245 100644 --- a/tools/objtool/builtin.h +++ b/tools/objtool/builtin.h @@ -8,7 +8,7 @@ #include <subcmd/parse-options.h> extern const struct option check_options[]; -extern bool no_fp, no_unreachable, retpoline, module, backtrace, uaccess, stats, validate_dup, vmlinux, fpu; +extern bool no_fp, no_unreachable, retpoline, module, backtrace, uaccess, stats, validate_dup, vmlinux, fpu, mcount; extern int cmd_check(int argc, const char **argv); extern int cmd_orc(int argc, const char **argv); diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 6647a8d1545b..ee99566bdae9 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -533,6 +533,65 @@ static int create_static_call_sections(struct objtool_file *file) return 0; } +static int create_mcount_loc_sections(struct objtool_file *file) +{ + struct section *sec, *reloc_sec; + struct reloc *reloc; + unsigned long *loc; + struct instruction *insn; + int idx; + + sec = find_section_by_name(file->elf, "__mcount_loc"); + if (sec) { + INIT_LIST_HEAD(&file->mcount_loc_list); + WARN("file already has __mcount_loc section, skipping"); + return 0; + } + + if (list_empty(&file->mcount_loc_list)) + return 0; + + idx = 0; + list_for_each_entry(insn, &file->mcount_loc_list, mcount_loc_node) + idx++; + + sec = elf_create_section(file->elf, "__mcount_loc", 0, sizeof(unsigned long), idx); + if (!sec) + return -1; + + reloc_sec = elf_create_reloc_section(file->elf, sec, SHT_RELA); + if (!reloc_sec) + return -1; + + idx = 0; + list_for_each_entry(insn, &file->mcount_loc_list, mcount_loc_node) { + + loc = (unsigned long *)sec->data->d_buf + idx; + memset(loc, 0, sizeof(unsigned long)); + + reloc = malloc(sizeof(*reloc)); + if (!reloc) { + perror("malloc"); + return -1; + } + memset(reloc, 0, sizeof(*reloc)); + + reloc->sym = insn->sec->sym; + reloc->addend = insn->offset; + reloc->type = R_X86_64_64; + reloc->offset = idx * sizeof(unsigned long); + reloc->sec = reloc_sec; + elf_add_reloc(file->elf, reloc); + + idx++; + } + + if (elf_rebuild_reloc_section(file->elf, reloc_sec)) + return -1; + + return 0; +} + /* * Warnings shouldn't be reported for ignored functions. */ @@ -892,6 +951,22 @@ static int add_call_destinations(struct objtool_file *file) insn->type = INSN_NOP; } + if (mcount && !strcmp(insn->call_dest->name, "__fentry__")) { + if (reloc) { + reloc->type = R_NONE; + elf_write_reloc(file->elf, reloc); + } + + elf_write_insn(file->elf, insn->sec, + insn->offset, insn->len, + arch_nop_insn(insn->len)); + + insn->type = INSN_NOP; + + list_add_tail(&insn->mcount_loc_node, + &file->mcount_loc_list); + } + /* * Whatever stack impact regular CALLs have, should be undone * by the RETURN of the called function. @@ -3004,6 +3079,7 @@ int check(const char *_objname, bool orc) INIT_LIST_HEAD(&file.insn_list); hash_init(file.insn_hash); INIT_LIST_HEAD(&file.static_call_list); + INIT_LIST_HEAD(&file.mcount_loc_list); file.c_file = !vmlinux && find_section_by_name(file.elf, ".comment"); file.ignore_unreachables = no_unreachable; file.hints = false; @@ -3056,6 +3132,11 @@ int check(const char *_objname, bool orc) goto out; warnings += ret; + ret = create_mcount_loc_sections(&file); + if (ret < 0) + goto out; + warnings += ret; + if (orc) { ret = create_orc(&file); if (ret < 0) diff --git a/tools/objtool/check.h b/tools/objtool/check.h index cd95fca0d237..01f11b5da5dd 100644 --- a/tools/objtool/check.h +++ b/tools/objtool/check.h @@ -24,6 +24,7 @@ struct instruction { struct list_head list; struct hlist_node hash; struct list_head static_call_node; + struct list_head mcount_loc_node; struct section *sec; unsigned long offset; unsigned int len; diff --git a/tools/objtool/objtool.h b/tools/objtool/objtool.h index 9a7cd0b88bd8..f604b22d22cc 100644 --- a/tools/objtool/objtool.h +++ b/tools/objtool/objtool.h @@ -17,6 +17,7 @@ struct objtool_file { struct list_head insn_list; DECLARE_HASHTABLE(insn_hash, 20); struct list_head static_call_list; + struct list_head mcount_loc_list; bool ignore_unreachables, c_file, hints, rodata; };
next prev parent reply index Thread overview: 212+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-06-24 20:31 [PATCH 00/22] add support for Clang LTO Sami Tolvanen 2020-06-24 20:31 ` [PATCH 01/22] objtool: use sh_info to find the base for .rela sections Sami Tolvanen 2020-06-24 20:31 ` [PATCH 02/22] kbuild: add support for Clang LTO Sami Tolvanen 2020-06-24 20:53 ` Nick Desaulniers 2020-06-24 21:29 ` Sami Tolvanen 2020-06-25 2:26 ` Nathan Chancellor 2020-06-25 16:13 ` Sami Tolvanen 2020-06-24 20:31 ` [PATCH 03/22] kbuild: lto: fix module versioning Sami Tolvanen 2020-06-24 20:31 ` [PATCH 04/22] kbuild: lto: fix recordmcount Sami Tolvanen 2020-06-24 21:27 ` Peter Zijlstra 2020-06-24 21:45 ` Sami Tolvanen 2020-06-25 7:45 ` Peter Zijlstra 2020-06-25 16:15 ` Sami Tolvanen 2020-06-25 20:02 ` Peter Zijlstra [this message] 2020-06-25 20:54 ` [RFC][PATCH] objtool,x86_64: Replace recordmcount with objtool Nick Desaulniers 2020-06-25 22:40 ` Sami Tolvanen 2020-06-26 11:29 ` Peter Zijlstra 2020-06-26 11:42 ` Peter Zijlstra 2020-07-17 17:28 ` Sami Tolvanen 2020-07-17 17:36 ` Steven Rostedt 2020-07-17 17:47 ` Sami Tolvanen 2020-07-17 18:05 ` Steven Rostedt 2020-07-20 16:52 ` Sami Tolvanen 2020-07-22 17:58 ` Steven Rostedt 2020-07-22 18:07 ` Sami Tolvanen 2020-07-22 17:55 ` Steven Rostedt 2020-07-22 18:41 ` Peter Zijlstra 2020-07-22 19:09 ` Steven Rostedt 2020-07-22 20:03 ` Sami Tolvanen 2020-07-22 23:56 ` Peter Zijlstra 2020-07-23 0:06 ` Steven Rostedt 2020-08-06 22:09 ` Sami Tolvanen 2020-06-24 20:31 ` [PATCH 05/22] kbuild: lto: postpone objtool Sami Tolvanen 2020-06-24 21:19 ` Peter Zijlstra 2020-06-24 21:49 ` Sami Tolvanen 2020-06-25 7:47 ` Peter Zijlstra 2020-06-25 16:22 ` Sami Tolvanen 2020-06-25 18:33 ` Peter Zijlstra 2020-06-25 19:32 ` Sami Tolvanen 2020-06-24 20:31 ` [PATCH 06/22] kbuild: lto: limit inlining Sami Tolvanen 2020-06-24 21:20 ` Peter Zijlstra 2020-06-24 23:37 ` Sami Tolvanen 2020-06-24 20:31 ` [PATCH 07/22] kbuild: lto: merge module sections Sami Tolvanen 2020-06-24 21:01 ` Nick Desaulniers 2020-06-24 21:31 ` Sami Tolvanen 2020-06-24 20:31 ` [PATCH 08/22] kbuild: lto: remove duplicate dependencies from .mod files Sami Tolvanen 2020-06-24 21:13 ` Nick Desaulniers 2020-06-24 20:31 ` [PATCH 09/22] init: lto: ensure initcall ordering Sami Tolvanen 2020-06-24 20:31 ` [PATCH 10/22] init: lto: fix PREL32 relocations Sami Tolvanen 2020-06-24 20:31 ` [PATCH 11/22] pci: " Sami Tolvanen 2020-07-17 20:26 ` Bjorn Helgaas 2020-07-22 18:15 ` Sami Tolvanen 2020-06-24 20:31 ` [PATCH 12/22] modpost: lto: strip .lto from module names Sami Tolvanen 2020-06-24 22:05 ` Nick Desaulniers 2020-06-24 20:31 ` [PATCH 13/22] scripts/mod: disable LTO for empty.c Sami Tolvanen 2020-06-24 20:57 ` Nick Desaulniers 2020-06-24 20:31 ` [PATCH 14/22] efi/libstub: disable LTO Sami Tolvanen 2020-06-24 20:31 ` [PATCH 15/22] drivers/misc/lkdtm: disable LTO for rodata.o Sami Tolvanen 2020-06-24 20:31 ` [PATCH 16/22] arm64: export CC_USING_PATCHABLE_FUNCTION_ENTRY Sami Tolvanen 2020-06-24 20:31 ` [PATCH 17/22] arm64: vdso: disable LTO Sami Tolvanen 2020-06-24 20:58 ` Nick Desaulniers 2020-06-24 21:09 ` Nick Desaulniers 2020-06-24 23:51 ` Andi Kleen 2020-06-24 21:52 ` Sami Tolvanen 2020-06-24 23:05 ` Nick Desaulniers 2020-06-24 23:39 ` Sami Tolvanen 2020-06-24 20:31 ` [PATCH 18/22] arm64: allow LTO_CLANG and THINLTO to be selected Sami Tolvanen 2020-06-24 20:31 ` [PATCH 19/22] x86, vdso: disable LTO only for vDSO Sami Tolvanen 2020-06-24 20:31 ` [PATCH 20/22] x86, ftrace: disable recordmcount for ftrace_make_nop Sami Tolvanen 2020-06-24 20:31 ` [PATCH 21/22] x86, relocs: Ignore L4_PAGE_OFFSET relocations Sami Tolvanen 2020-06-24 20:32 ` [PATCH 22/22] x86, build: allow LTO_CLANG and THINLTO to be selected Sami Tolvanen 2020-06-24 21:15 ` [PATCH 00/22] add support for Clang LTO Peter Zijlstra 2020-06-24 21:30 ` Sami Tolvanen 2020-06-25 8:27 ` Will Deacon 2020-06-24 21:31 ` Nick Desaulniers 2020-06-25 8:03 ` Peter Zijlstra 2020-06-25 8:24 ` Peter Zijlstra 2020-06-25 8:57 ` Peter Zijlstra 2020-06-30 19:19 ` Marco Elver 2020-06-30 20:12 ` Peter Zijlstra 2020-06-30 20:30 ` Paul E. McKenney 2020-07-01 9:10 ` Peter Zijlstra 2020-07-01 14:20 ` David Laight 2020-07-01 16:06 ` Paul E. McKenney 2020-07-02 9:37 ` David Laight 2020-07-02 18:00 ` Paul E. McKenney 2020-07-01 9:41 ` Marco Elver 2020-07-01 10:03 ` Will Deacon 2020-07-01 11:40 ` Peter Zijlstra 2020-07-01 14:06 ` Paul E. McKenney 2020-07-01 15:05 ` Peter Zijlstra 2020-07-01 16:03 ` Paul E. McKenney 2020-07-02 8:20 ` Peter Zijlstra 2020-07-02 17:59 ` Paul E. McKenney 2020-07-03 13:13 ` Peter Zijlstra 2020-07-03 13:25 ` Peter Zijlstra 2020-07-03 14:51 ` Paul E. McKenney 2020-07-03 14:42 ` Paul E. McKenney 2020-07-06 16:26 ` Paul E. McKenney 2020-07-06 18:29 ` Peter Zijlstra 2020-07-06 18:39 ` Paul E. McKenney 2020-07-06 19:40 ` Peter Zijlstra 2020-07-06 23:41 ` Paul E. McKenney 2020-06-28 16:56 ` Masahiro Yamada 2020-06-29 23:20 ` Sami Tolvanen 2020-07-07 15:51 ` Sami Tolvanen 2020-07-07 16:05 ` Sami Tolvanen 2020-07-07 16:56 ` Jakub Kicinski 2020-07-07 17:17 ` Nick Desaulniers 2020-07-07 17:30 ` Jakub Kicinski 2020-07-11 16:32 ` Paul Menzel 2020-07-12 8:59 ` Sedat Dilek 2020-07-12 18:40 ` Nathan Chancellor 2020-07-14 9:44 ` Sedat Dilek 2020-07-14 17:54 ` Nick Desaulniers 2020-07-12 23:34 ` Sami Tolvanen 2020-07-14 12:16 ` Paul Menzel 2020-07-14 12:35 ` Sedat Dilek 2020-07-14 13:40 ` Paul Menzel 2020-09-03 20:30 ` [PATCH v2 00/28] Add " Sami Tolvanen 2020-09-03 20:30 ` [PATCH v2 01/28] x86/boot/compressed: Disable relocation relaxation Sami Tolvanen 2020-09-03 21:44 ` Kees Cook 2020-09-03 23:42 ` Arvind Sankar 2020-09-04 7:14 ` Nathan Chancellor 2020-09-03 20:30 ` [PATCH v2 02/28] x86/asm: Replace __force_order with memory clobber Sami Tolvanen 2020-09-03 21:45 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 03/28] lib/string.c: implement stpcpy Sami Tolvanen 2020-09-03 21:47 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 04/28] RAS/CEC: Fix cec_init() prototype Sami Tolvanen 2020-09-03 21:50 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 05/28] objtool: Add a pass for generating __mcount_loc Sami Tolvanen 2020-09-03 21:51 ` Kees Cook 2020-09-03 22:03 ` Sami Tolvanen 2020-09-04 9:31 ` peterz 2020-09-10 18:29 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 06/28] objtool: Don't autodetect vmlinux.o Sami Tolvanen 2020-09-03 21:52 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 07/28] kbuild: add support for objtool mcount Sami Tolvanen 2020-09-03 21:56 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 08/28] x86, build: use " Sami Tolvanen 2020-09-03 21:58 ` Kees Cook 2020-09-03 22:11 ` Sami Tolvanen 2020-09-03 20:30 ` [PATCH v2 09/28] kbuild: add support for Clang LTO Sami Tolvanen 2020-09-03 22:08 ` Kees Cook 2020-09-08 17:02 ` Sami Tolvanen 2020-09-05 19:36 ` Masahiro Yamada 2020-09-08 17:10 ` Sami Tolvanen 2020-09-05 20:17 ` Masahiro Yamada 2020-09-08 17:14 ` Sami Tolvanen 2020-09-07 15:30 ` Masahiro Yamada 2020-09-08 17:30 ` Sami Tolvanen 2020-09-03 20:30 ` [PATCH v2 10/28] kbuild: lto: fix module versioning Sami Tolvanen 2020-09-03 22:11 ` Kees Cook 2020-09-08 18:23 ` Sami Tolvanen 2020-09-03 20:30 ` [PATCH v2 11/28] kbuild: lto: postpone objtool Sami Tolvanen 2020-09-03 22:19 ` Kees Cook 2020-09-08 20:56 ` Sami Tolvanen 2020-09-03 20:30 ` [PATCH v2 12/28] kbuild: lto: limit inlining Sami Tolvanen 2020-09-03 22:20 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 13/28] kbuild: lto: merge module sections Sami Tolvanen 2020-09-03 22:23 ` Kees Cook 2020-09-07 15:25 ` Masahiro Yamada 2020-09-08 21:07 ` Sami Tolvanen 2020-09-03 20:30 ` [PATCH v2 14/28] kbuild: lto: remove duplicate dependencies from .mod files Sami Tolvanen 2020-09-03 22:29 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 15/28] init: lto: ensure initcall ordering Sami Tolvanen 2020-09-03 22:40 ` Kees Cook 2020-09-08 21:16 ` Sami Tolvanen 2020-09-10 9:25 ` David Woodhouse 2020-09-10 15:07 ` Sami Tolvanen 2020-09-03 20:30 ` [PATCH v2 16/28] init: lto: fix PREL32 relocations Sami Tolvanen 2020-09-03 22:41 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 17/28] PCI: Fix PREL32 relocations for LTO Sami Tolvanen 2020-09-03 22:42 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 18/28] modpost: lto: strip .lto from module names Sami Tolvanen 2020-09-03 22:42 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 19/28] scripts/mod: disable LTO for empty.c Sami Tolvanen 2020-09-03 22:43 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 20/28] efi/libstub: disable LTO Sami Tolvanen 2020-09-03 22:43 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 21/28] drivers/misc/lkdtm: disable LTO for rodata.o Sami Tolvanen 2020-09-03 20:30 ` [PATCH v2 22/28] arm64: export CC_USING_PATCHABLE_FUNCTION_ENTRY Sami Tolvanen 2020-09-03 22:44 ` Kees Cook 2020-09-08 21:23 ` Sami Tolvanen 2020-09-03 20:30 ` [PATCH v2 23/28] arm64: vdso: disable LTO Sami Tolvanen 2020-09-03 22:45 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 24/28] KVM: arm64: disable LTO for the nVHE directory Sami Tolvanen 2020-09-03 22:45 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 25/28] arm64: allow LTO_CLANG and THINLTO to be selected Sami Tolvanen 2020-09-03 22:45 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 26/28] x86, vdso: disable LTO only for vDSO Sami Tolvanen 2020-09-03 22:46 ` Kees Cook 2020-09-03 20:30 ` [PATCH v2 27/28] x86, relocs: Ignore L4_PAGE_OFFSET relocations Sami Tolvanen 2020-09-03 22:47 ` Kees Cook 2020-09-08 23:28 ` Sami Tolvanen 2020-09-03 20:30 ` [PATCH v2 28/28] x86, build: allow LTO_CLANG and THINLTO to be selected Sami Tolvanen 2020-09-03 22:48 ` Kees Cook 2020-09-03 23:34 ` [PATCH v2 00/28] Add support for Clang LTO Kees Cook 2020-09-04 4:45 ` Nathan Chancellor 2020-09-03 23:38 ` Kees Cook 2020-09-04 7:53 ` Sedat Dilek 2020-09-04 8:55 ` peterz 2020-09-04 9:08 ` Sedat Dilek 2020-09-06 0:24 ` Masahiro Yamada 2020-09-08 23:46 ` Sami Tolvanen 2020-09-10 1:18 ` Masahiro Yamada 2020-09-10 15:17 ` Sami Tolvanen 2020-09-10 18:18 ` Kees Cook 2020-09-10 17:46 ` Nick Desaulniers 2020-09-10 18:07 ` Masahiro Yamada 2020-09-22 16:27 ` [EXTERNAL] " Ian Bearman 2020-09-22 17:52 ` Nick Desaulniers
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