From: Julien Thierry <jthierry@redhat.com> To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: jpoimboe@redhat.com, peterz@infradead.org, raphael.gault@arm.com, catalin.marinas@arm.com, will@kernel.org, Julien Thierry <jthierry@redhat.com>, Masahiro Yamada <masahiroy@kernel.org>, Michal Marek <michal.lkml@markovi.net>, Kees Cook <keescook@chromium.org>, Emese Revfy <re.emese@gmail.com>, linux-kbuild@vger.kernel.org, kernel-hardening@lists.openwall.com Subject: [RFC v5 43/57] gcc-plugins: objtool: Add plugin to detect switch table on arm64 Date: Thu, 9 Jan 2020 16:02:46 +0000 [thread overview] Message-ID: <20200109160300.26150-44-jthierry@redhat.com> (raw) In-Reply-To: <20200109160300.26150-1-jthierry@redhat.com> From: Raphael Gault <raphael.gault@arm.com> This plugins comes into play before the final 2 RTL passes of GCC and detects switch-tables that are to be outputed in the ELF and writes information in an ".discard.switch_table_info" section which will be used by objtool. Signed-off-by: Raphael Gault <raphael.gault@arm.com> [J.T.: Change section name to store switch table information, Make plugin Kconfig be selected rather than opt-in by user, Add a relocation in the switch_table_info that points to the jump operation itself] Signed-off-by: Julien Thierry <jthierry@redhat.com> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Michal Marek <michal.lkml@markovi.net> Cc: Kees Cook <keescook@chromium.org> Cc: Emese Revfy <re.emese@gmail.com> Cc: linux-kbuild@vger.kernel.org Cc: kernel-hardening@lists.openwall.com --- arch/arm64/Kconfig | 1 + scripts/Makefile.gcc-plugins | 2 + scripts/gcc-plugins/Kconfig | 4 + .../arm64_switch_table_detection_plugin.c | 94 +++++++++++++++++++ 4 files changed, 101 insertions(+) create mode 100644 scripts/gcc-plugins/arm64_switch_table_detection_plugin.c diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index b1b4476ddb83..a7b2116d5d13 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -90,6 +90,7 @@ config ARM64 select DMA_DIRECT_REMAP select EDAC_SUPPORT select FRAME_POINTER + select GCC_PLUGIN_SWITCH_TABLES if STACK_VALIDATION select GENERIC_ALLOCATOR select GENERIC_ARCH_TOPOLOGY select GENERIC_CLOCKEVENTS diff --git a/scripts/Makefile.gcc-plugins b/scripts/Makefile.gcc-plugins index 5f7df50cfe7a..a56736df9dc2 100644 --- a/scripts/Makefile.gcc-plugins +++ b/scripts/Makefile.gcc-plugins @@ -44,6 +44,8 @@ ifdef CONFIG_GCC_PLUGIN_ARM_SSP_PER_TASK endif export DISABLE_ARM_SSP_PER_TASK_PLUGIN +gcc-plugin-$(CONFIG_GCC_PLUGIN_SWITCH_TABLES) += arm64_switch_table_detection_plugin.so + # All the plugin CFLAGS are collected here in case a build target needs to # filter them out of the KBUILD_CFLAGS. GCC_PLUGINS_CFLAGS := $(strip $(addprefix -fplugin=$(objtree)/scripts/gcc-plugins/, $(gcc-plugin-y)) $(gcc-plugin-cflags-y)) diff --git a/scripts/gcc-plugins/Kconfig b/scripts/gcc-plugins/Kconfig index e3569543bdac..f50047939660 100644 --- a/scripts/gcc-plugins/Kconfig +++ b/scripts/gcc-plugins/Kconfig @@ -112,4 +112,8 @@ config GCC_PLUGIN_ARM_SSP_PER_TASK bool depends on GCC_PLUGINS && ARM +config GCC_PLUGIN_SWITCH_TABLES + bool + depends on GCC_PLUGINS && ARM64 + endif diff --git a/scripts/gcc-plugins/arm64_switch_table_detection_plugin.c b/scripts/gcc-plugins/arm64_switch_table_detection_plugin.c new file mode 100644 index 000000000000..9b8b2ec6a3c8 --- /dev/null +++ b/scripts/gcc-plugins/arm64_switch_table_detection_plugin.c @@ -0,0 +1,94 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <stdio.h> +#include "gcc-common.h" + +__visible int plugin_is_GPL_compatible; + +#define GEN_QUAD(rtx) assemble_integer_with_op(".quad ", rtx) + +/* + * Create an array of metadata for each jump table found in the rtl. + * The metadata contains: + * - A pointer to the table of offsets used for the actual branch + * - A pointer to first instruction of the group getting expanded into an + * acutal jump + * - The number of entries in the table of offsets + * - Whether the offsets in the table are signed or not + */ +static unsigned int arm64_switchtbl_rtl_execute(void) +{ + rtx_insn *insn; + rtx_insn *labelp = NULL; + rtx_jump_table_data *tablep = NULL; + section *swt_sec; + section *curr_sec = current_function_section(); + + swt_sec = get_section(".discard.switch_table_info", + SECTION_EXCLUDE | SECTION_COMMON, NULL); + + for (insn = get_insns(); insn; insn = NEXT_INSN(insn)) { + /* + * Find a tablejump_p INSN (using a dispatch table) + */ + if (!tablejump_p(insn, &labelp, &tablep)) + continue; + + if (labelp && tablep) { + rtx_code_label *label_to_jump; + + /* + * GCC is a bit touchy about adding the label right + * before the jump rtx_insn as it modifies the + * basic_block created for the jump table. + * Make sure we create the label before the whole + * basic_block of the jump table. + */ + label_to_jump = gen_label_rtx(); + SET_LABEL_KIND(label_to_jump, LABEL_NORMAL); + emit_label_before(label_to_jump, insn); + /* Force label to be kept, apparently LABEL_PRESERVE_P is an rvalue :) */ + LABEL_PRESERVE_P(label_to_jump) = 1; + + switch_to_section(swt_sec); + GEN_QUAD(gen_rtx_LABEL_REF(Pmode, labelp)); + GEN_QUAD(gen_rtx_LABEL_REF(Pmode, label_to_jump)); + GEN_QUAD(GEN_INT(GET_NUM_ELEM(tablep->get_labels()))); + GEN_QUAD(GEN_INT(ADDR_DIFF_VEC_FLAGS(tablep).offset_unsigned)); + switch_to_section(curr_sec); + + /* + * Scheduler isn't very happy about leaving labels in + * the middle of jump table basic blocks. + */ + delete_insn(label_to_jump); + } + } + return 0; +} + +#define PASS_NAME arm64_switchtbl_rtl + +#define NO_GATE +#include "gcc-generate-rtl-pass.h" + +__visible int plugin_init(struct plugin_name_args *plugin_info, + struct plugin_gcc_version *version) +{ + const char * const plugin_name = plugin_info->base_name; + int tso = 0; + int i; + + if (!plugin_default_version_check(version, &gcc_version)) { + error(G_("incompatible gcc/plugin versions")); + return 1; + } + + PASS_INFO(arm64_switchtbl_rtl, "expand", 1, + PASS_POS_INSERT_AFTER); + + register_callback(plugin_info->base_name, PLUGIN_PASS_MANAGER_SETUP, + NULL, &arm64_switchtbl_rtl_pass_info); + + return 0; +} -- 2.21.0
WARNING: multiple messages have this Message-ID (diff)
From: Julien Thierry <jthierry@redhat.com> To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Michal Marek <michal.lkml@markovi.net>, Julien Thierry <jthierry@redhat.com>, linux-kbuild@vger.kernel.org, peterz@infradead.org, catalin.marinas@arm.com, Masahiro Yamada <masahiroy@kernel.org>, kernel-hardening@lists.openwall.com, raphael.gault@arm.com, Emese Revfy <re.emese@gmail.com>, jpoimboe@redhat.com, will@kernel.org, Kees Cook <keescook@chromium.org> Subject: [RFC v5 43/57] gcc-plugins: objtool: Add plugin to detect switch table on arm64 Date: Thu, 9 Jan 2020 16:02:46 +0000 [thread overview] Message-ID: <20200109160300.26150-44-jthierry@redhat.com> (raw) In-Reply-To: <20200109160300.26150-1-jthierry@redhat.com> From: Raphael Gault <raphael.gault@arm.com> This plugins comes into play before the final 2 RTL passes of GCC and detects switch-tables that are to be outputed in the ELF and writes information in an ".discard.switch_table_info" section which will be used by objtool. Signed-off-by: Raphael Gault <raphael.gault@arm.com> [J.T.: Change section name to store switch table information, Make plugin Kconfig be selected rather than opt-in by user, Add a relocation in the switch_table_info that points to the jump operation itself] Signed-off-by: Julien Thierry <jthierry@redhat.com> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Michal Marek <michal.lkml@markovi.net> Cc: Kees Cook <keescook@chromium.org> Cc: Emese Revfy <re.emese@gmail.com> Cc: linux-kbuild@vger.kernel.org Cc: kernel-hardening@lists.openwall.com --- arch/arm64/Kconfig | 1 + scripts/Makefile.gcc-plugins | 2 + scripts/gcc-plugins/Kconfig | 4 + .../arm64_switch_table_detection_plugin.c | 94 +++++++++++++++++++ 4 files changed, 101 insertions(+) create mode 100644 scripts/gcc-plugins/arm64_switch_table_detection_plugin.c diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index b1b4476ddb83..a7b2116d5d13 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -90,6 +90,7 @@ config ARM64 select DMA_DIRECT_REMAP select EDAC_SUPPORT select FRAME_POINTER + select GCC_PLUGIN_SWITCH_TABLES if STACK_VALIDATION select GENERIC_ALLOCATOR select GENERIC_ARCH_TOPOLOGY select GENERIC_CLOCKEVENTS diff --git a/scripts/Makefile.gcc-plugins b/scripts/Makefile.gcc-plugins index 5f7df50cfe7a..a56736df9dc2 100644 --- a/scripts/Makefile.gcc-plugins +++ b/scripts/Makefile.gcc-plugins @@ -44,6 +44,8 @@ ifdef CONFIG_GCC_PLUGIN_ARM_SSP_PER_TASK endif export DISABLE_ARM_SSP_PER_TASK_PLUGIN +gcc-plugin-$(CONFIG_GCC_PLUGIN_SWITCH_TABLES) += arm64_switch_table_detection_plugin.so + # All the plugin CFLAGS are collected here in case a build target needs to # filter them out of the KBUILD_CFLAGS. GCC_PLUGINS_CFLAGS := $(strip $(addprefix -fplugin=$(objtree)/scripts/gcc-plugins/, $(gcc-plugin-y)) $(gcc-plugin-cflags-y)) diff --git a/scripts/gcc-plugins/Kconfig b/scripts/gcc-plugins/Kconfig index e3569543bdac..f50047939660 100644 --- a/scripts/gcc-plugins/Kconfig +++ b/scripts/gcc-plugins/Kconfig @@ -112,4 +112,8 @@ config GCC_PLUGIN_ARM_SSP_PER_TASK bool depends on GCC_PLUGINS && ARM +config GCC_PLUGIN_SWITCH_TABLES + bool + depends on GCC_PLUGINS && ARM64 + endif diff --git a/scripts/gcc-plugins/arm64_switch_table_detection_plugin.c b/scripts/gcc-plugins/arm64_switch_table_detection_plugin.c new file mode 100644 index 000000000000..9b8b2ec6a3c8 --- /dev/null +++ b/scripts/gcc-plugins/arm64_switch_table_detection_plugin.c @@ -0,0 +1,94 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <stdio.h> +#include "gcc-common.h" + +__visible int plugin_is_GPL_compatible; + +#define GEN_QUAD(rtx) assemble_integer_with_op(".quad ", rtx) + +/* + * Create an array of metadata for each jump table found in the rtl. + * The metadata contains: + * - A pointer to the table of offsets used for the actual branch + * - A pointer to first instruction of the group getting expanded into an + * acutal jump + * - The number of entries in the table of offsets + * - Whether the offsets in the table are signed or not + */ +static unsigned int arm64_switchtbl_rtl_execute(void) +{ + rtx_insn *insn; + rtx_insn *labelp = NULL; + rtx_jump_table_data *tablep = NULL; + section *swt_sec; + section *curr_sec = current_function_section(); + + swt_sec = get_section(".discard.switch_table_info", + SECTION_EXCLUDE | SECTION_COMMON, NULL); + + for (insn = get_insns(); insn; insn = NEXT_INSN(insn)) { + /* + * Find a tablejump_p INSN (using a dispatch table) + */ + if (!tablejump_p(insn, &labelp, &tablep)) + continue; + + if (labelp && tablep) { + rtx_code_label *label_to_jump; + + /* + * GCC is a bit touchy about adding the label right + * before the jump rtx_insn as it modifies the + * basic_block created for the jump table. + * Make sure we create the label before the whole + * basic_block of the jump table. + */ + label_to_jump = gen_label_rtx(); + SET_LABEL_KIND(label_to_jump, LABEL_NORMAL); + emit_label_before(label_to_jump, insn); + /* Force label to be kept, apparently LABEL_PRESERVE_P is an rvalue :) */ + LABEL_PRESERVE_P(label_to_jump) = 1; + + switch_to_section(swt_sec); + GEN_QUAD(gen_rtx_LABEL_REF(Pmode, labelp)); + GEN_QUAD(gen_rtx_LABEL_REF(Pmode, label_to_jump)); + GEN_QUAD(GEN_INT(GET_NUM_ELEM(tablep->get_labels()))); + GEN_QUAD(GEN_INT(ADDR_DIFF_VEC_FLAGS(tablep).offset_unsigned)); + switch_to_section(curr_sec); + + /* + * Scheduler isn't very happy about leaving labels in + * the middle of jump table basic blocks. + */ + delete_insn(label_to_jump); + } + } + return 0; +} + +#define PASS_NAME arm64_switchtbl_rtl + +#define NO_GATE +#include "gcc-generate-rtl-pass.h" + +__visible int plugin_init(struct plugin_name_args *plugin_info, + struct plugin_gcc_version *version) +{ + const char * const plugin_name = plugin_info->base_name; + int tso = 0; + int i; + + if (!plugin_default_version_check(version, &gcc_version)) { + error(G_("incompatible gcc/plugin versions")); + return 1; + } + + PASS_INFO(arm64_switchtbl_rtl, "expand", 1, + PASS_POS_INSERT_AFTER); + + register_callback(plugin_info->base_name, PLUGIN_PASS_MANAGER_SETUP, + NULL, &arm64_switchtbl_rtl_pass_info); + + return 0; +} -- 2.21.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-01-09 16:08 UTC|newest] Thread overview: 189+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-01-09 16:02 [RFC v5 00/57] objtool: Add support for arm64 Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 01/57] objtool: check: Remove redundant checks on operand type Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 02/57] objtool: check: Clean instruction state before each function validation Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 03/57] objtool: check: Use arch specific values in restore_reg() Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 04/57] objtool: check: Ignore empty alternative groups Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-21 16:30 ` Josh Poimboeuf 2020-01-21 16:30 ` Josh Poimboeuf 2020-01-23 11:45 ` Julien Thierry 2020-01-23 11:45 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 05/57] objtool: Add abstraction for computation of symbols offsets Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 06/57] objtool: Give ORC functions consistent name Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 07/57] objtool: orc: Refactor ORC API for other architectures to implement Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 08/57] objtool: Make ORC support optional Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-21 16:37 ` Josh Poimboeuf 2020-01-21 16:37 ` Josh Poimboeuf 2020-01-23 11:45 ` Julien Thierry 2020-01-23 11:45 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 09/57] objtool: Move registers and control flow to arch-dependent code Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 10/57] objtool: Split generic and arch specific CFI definitions Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 11/57] objtool: Abstract alternative special case handling Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-20 14:54 ` Peter Zijlstra 2020-01-20 14:54 ` Peter Zijlstra 2020-01-23 11:45 ` Julien Thierry 2020-01-23 11:45 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 12/57] objtool: check: Allow jumps from an alternative group to itself Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-20 14:56 ` Peter Zijlstra 2020-01-20 14:56 ` Peter Zijlstra 2020-01-21 10:30 ` Will Deacon 2020-01-21 10:30 ` Will Deacon 2020-01-21 17:33 ` Josh Poimboeuf 2020-01-21 17:33 ` Josh Poimboeuf 2020-01-23 13:42 ` Julien Thierry 2020-01-23 13:42 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 13/57] objtool: Refactor switch-tables code to support other architectures Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 14/57] objtool: Do not look for STT_NOTYPE symbols Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-11 18:49 ` kbuild test robot 2020-01-13 10:20 ` Julien Thierry 2020-01-13 10:20 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 15/57] objtool: Support addition to set frame pointer Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 16/57] objtool: Support restoring BP from the stack without POP Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 17/57] objtool: Make stack validation more generic Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 18/57] objtool: Support multiple stack_op per instruction Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 19/57] objtool: arm64: Add required implementation for supporting the aarch64 architecture in objtool Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 20/57] objtool: arm64: Decode unknown instructions Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 21/57] objtool: arm64: Decode simple data processing instructions Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 22/57] objtool: arm64: Decode add/sub immediate instructions Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 23/57] objtool: arm64: Decode logical data processing instructions Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 24/57] objtool: arm64: Decode system instructions not affecting the flow Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 25/57] objtool: arm64: Decode calls to higher EL Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 26/57] objtool: arm64: Decode brk instruction Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 27/57] objtool: arm64: Decode instruction triggering context switch Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 28/57] objtool: arm64: Decode branch instructions with PC relative immediates Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 29/57] objtool: arm64: Decode branch to register instruction Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 30/57] objtool: arm64: Decode basic load/stores Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 31/57] objtool: arm64: Decode load/store with register offset Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 32/57] objtool: arm64: Decode load/store register pair instructions Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 33/57] objtool: arm64: Decode FP/SIMD load/store instructions Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 34/57] objtool: arm64: Decode load/store exclusive Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 35/57] objtool: arm64: Decode atomic load/store Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 36/57] objtool: arm64: Decode pointer auth load instructions Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 37/57] objtool: arm64: Decode load acquire/store release Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 38/57] objtool: arm64: Decode load/store with memory tag Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 39/57] objtool: arm64: Decode load literal Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 40/57] objtool: arm64: Decode register data processing instructions Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 41/57] objtool: arm64: Decode FP/SIMD " Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 42/57] objtool: arm64: Decode SVE instructions Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` Julien Thierry [this message] 2020-01-09 16:02 ` [RFC v5 43/57] gcc-plugins: objtool: Add plugin to detect switch table on arm64 Julien Thierry 2020-01-09 16:02 ` [RFC v5 44/57] objtool: arm64: Implement functions to add switch tables alternatives Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-15 16:37 ` Raphael Gault 2020-01-15 16:37 ` Raphael Gault 2020-01-17 8:28 ` Julien Thierry 2020-01-17 8:28 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 45/57] objtool: arm64: Enable stack validation for arm64 Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-11 14:42 ` kbuild test robot 2020-01-11 20:30 ` kbuild test robot 2020-01-09 16:02 ` [RFC v5 46/57] arm64: alternative: Mark .altinstr_replacement as containing executable instructions Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-12 11:08 ` kbuild test robot 2020-01-13 3:38 ` kbuild test robot 2020-01-09 16:02 ` [RFC v5 47/57] arm64: assembler: Add macro to annotate asm function having non standard stack-frame Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-21 10:30 ` Will Deacon 2020-01-21 10:30 ` Will Deacon 2020-01-23 13:45 ` Julien Thierry 2020-01-23 13:45 ` Julien Thierry 2020-01-23 14:40 ` Will Deacon 2020-01-23 14:40 ` Will Deacon 2020-01-09 16:02 ` [RFC v5 48/57] arm64: sleep: Prevent stack frame warnings from objtool Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 49/57] arm64: kvm: Annotate non-standard stack frame functions Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 50/57] arm64: kernel: Add exception on kuser32 to prevent stack analysis Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 51/57] arm64: crypto: Add exceptions for crypto object " Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 52/57] arm64: kernel: Annotate non-standard stack frame functions Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 53/57] arm64: Generate no-ops to pad executable section Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 54/57] arm64: Move constant to rodata Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 55/57] arm64: Mark sigreturn32.o as containing non standard code Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:02 ` [RFC v5 56/57] arm64: entry: Avoid empty alternatives entries Julien Thierry 2020-01-09 16:02 ` Julien Thierry 2020-01-09 16:51 ` Mark Rutland 2020-01-09 16:51 ` Mark Rutland 2020-01-21 10:30 ` Will Deacon 2020-01-21 10:30 ` Will Deacon 2020-01-09 16:03 ` [RFC v5 57/57] arm64: crypto: Remove redundant branch Julien Thierry 2020-01-09 16:03 ` Julien Thierry 2020-01-12 8:42 ` [RFC v5 00/57] objtool: Add support for arm64 Nathan Chancellor 2020-01-12 8:42 ` Nathan Chancellor 2020-01-13 7:57 ` Julien Thierry 2020-01-13 7:57 ` Julien Thierry 2020-01-21 10:31 ` Will Deacon 2020-01-21 10:31 ` Will Deacon 2020-01-21 17:08 ` Nick Desaulniers 2020-01-21 17:08 ` Nick Desaulniers 2020-01-21 18:06 ` Will Deacon 2020-01-21 18:06 ` Will Deacon 2020-01-21 18:30 ` Josh Poimboeuf 2020-01-21 18:30 ` Josh Poimboeuf 2020-01-22 14:47 ` Will Deacon 2020-01-22 14:47 ` Will Deacon 2020-01-13 17:18 ` Nick Desaulniers 2020-01-13 17:18 ` Nick Desaulniers 2020-01-20 15:07 ` Peter Zijlstra 2020-01-20 15:07 ` Peter Zijlstra 2020-01-21 17:50 ` Josh Poimboeuf 2020-01-21 17:50 ` Josh Poimboeuf 2020-01-23 13:56 ` Julien Thierry 2020-01-23 13:56 ` Julien Thierry 2020-01-21 10:30 ` Will Deacon 2020-01-21 10:30 ` Will Deacon 2020-01-23 13:52 ` Julien Thierry 2020-01-23 13:52 ` Julien Thierry 2020-01-23 14:35 ` Will Deacon 2020-01-23 14:35 ` Will Deacon 2020-01-23 15:11 ` Julien Thierry 2020-01-23 15:11 ` Julien Thierry
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