From f4cdf7ca9a1fdcca413157df19753f388a5a224e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 19 Aug 2026 10:09:22 -0700 Subject: Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ... --- tools/objtool/objtool.c | 122 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 122 insertions(+) create mode 100644 tools/objtool/objtool.c (limited to 'tools/objtool/objtool.c') diff --git a/tools/objtool/objtool.c b/tools/objtool/objtool.c new file mode 100644 index 000000000..a4e139dee --- /dev/null +++ b/tools/objtool/objtool.c @@ -0,0 +1,122 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2015 Josh Poimboeuf + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +static struct objtool_file file; + +struct objtool_file *objtool_open_read(const char *filename) +{ + if (file.elf) { + ERROR("won't handle more than one file at a time"); + return NULL; + } + + file.elf = elf_open_read(filename, O_RDWR); + if (!file.elf) + return NULL; + + hash_init(file.insn_hash); + INIT_LIST_HEAD(&file.retpoline_call_list); + INIT_LIST_HEAD(&file.return_thunk_list); + INIT_LIST_HEAD(&file.static_call_list); + INIT_LIST_HEAD(&file.mcount_loc_list); + INIT_LIST_HEAD(&file.endbr_list); + INIT_LIST_HEAD(&file.call_list); + file.ignore_unreachables = opts.no_unreachable; + file.hints = false; + + return &file; +} + +int objtool_pv_add(struct objtool_file *f, int idx, struct symbol *func) +{ + if (!opts.noinstr) + return 0; + + if (!f->pv_ops) { + ERROR("paravirt confusion"); + return -1; + } + + /* + * These functions will be patched into native code, + * see paravirt_patch(). + */ + if (!strcmp(func->name, "_paravirt_nop") || + !strcmp(func->name, "_paravirt_ident_64")) + return 0; + + /* already added this function */ + if (!list_empty(&func->pv_target)) + return 0; + + list_add(&func->pv_target, &f->pv_ops[idx].targets); + f->pv_ops[idx].clean = false; + return 0; +} + +char *top_level_dir(const char *file) +{ + ssize_t len, self_len, file_len; + char self[PATH_MAX], *str; + int i; + + len = readlink("/proc/self/exe", self, sizeof(self) - 1); + if (len <= 0) + return NULL; + self[len] = '\0'; + + for (i = 0; i < 3; i++) { + char *s = strrchr(self, '/'); + if (!s) + return NULL; + *s = '\0'; + } + + self_len = strlen(self); + file_len = strlen(file); + + str = malloc(self_len + file_len + 2); + if (!str) + return NULL; + + memcpy(str, self, self_len); + str[self_len] = '/'; + strcpy(str + self_len + 1, file); + + return str; +} + +int main(int argc, const char **argv) +{ + static const char *UNUSED = "OBJTOOL_NOT_IMPLEMENTED"; + + if (init_signal_handler()) + return -1; + + /* libsubcmd init */ + exec_cmd_init("objtool", UNUSED, UNUSED, UNUSED); + pager_init(UNUSED); + + if (argc > 1 && !strcmp(argv[1], "klp")) { + argc--; + argv++; + return cmd_klp(argc, argv); + } + + return objtool_run(argc, argv); +} -- cgit v1.3.1