vasilito
dc68054305
- Restore 29 recipe symlinks (libdrm, qtbase, dbus, sddm, pipewire, etc.) - Restore 33 patches (KDE, libdrm, mesa, pipewire, sddm, wireplumber) - Restore 20+ local/scripts (audit, lint, test, build helpers) - Restore src/cook/scheduler.rs, status.rs, gnu-config/ - Restore scripts/patch-inclusion-gate.sh, run_mini1.sh, validate-collision-log.sh - Recover TLC source from HEAD (was overwritten by 0.2.3 checkout) - Recover 11 local/docs plans from HEAD (were overwritten) - Recover qt6-wayland-smoke symlink from HEAD - Fix MOTD: remove garbled ASCII art, use clean text - Update version: 0.2.0 -> 0.2.4 in os-release, motd, config - Reduce filesystem_size: 1536 -> 512 MiB - Add ABSOLUTE RULE to AGENTS.md: never delete/ignore packages - Reduce pcid scheme log verbosity: info -> debug
77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* External livepatch interfaces for patch creation tooling
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*/
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#ifndef _LINUX_LIVEPATCH_EXTERNAL_H_
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#define _LINUX_LIVEPATCH_EXTERNAL_H_
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#include <linux/types.h>
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#define KLP_RELOC_SEC_PREFIX ".klp.rela."
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#define KLP_SYM_PREFIX ".klp.sym."
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#define __KLP_PRE_PATCH_PREFIX __klp_pre_patch_callback_
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#define __KLP_POST_PATCH_PREFIX __klp_post_patch_callback_
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#define __KLP_PRE_UNPATCH_PREFIX __klp_pre_unpatch_callback_
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#define __KLP_POST_UNPATCH_PREFIX __klp_post_unpatch_callback_
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#define KLP_PRE_PATCH_PREFIX __stringify(__KLP_PRE_PATCH_PREFIX)
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#define KLP_POST_PATCH_PREFIX __stringify(__KLP_POST_PATCH_PREFIX)
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#define KLP_PRE_UNPATCH_PREFIX __stringify(__KLP_PRE_UNPATCH_PREFIX)
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#define KLP_POST_UNPATCH_PREFIX __stringify(__KLP_POST_UNPATCH_PREFIX)
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struct klp_object;
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typedef int (*klp_pre_patch_t)(struct klp_object *obj);
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typedef void (*klp_post_patch_t)(struct klp_object *obj);
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typedef void (*klp_pre_unpatch_t)(struct klp_object *obj);
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typedef void (*klp_post_unpatch_t)(struct klp_object *obj);
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/**
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* struct klp_callbacks - pre/post live-(un)patch callback structure
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* @pre_patch: executed before code patching
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* @post_patch: executed after code patching
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* @pre_unpatch: executed before code unpatching
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* @post_unpatch: executed after code unpatching
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* @post_unpatch_enabled: flag indicating if post-unpatch callback
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* should run
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*
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* All callbacks are optional. Only the pre-patch callback, if provided,
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* will be unconditionally executed. If the parent klp_object fails to
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* patch for any reason, including a non-zero error status returned from
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* the pre-patch callback, no further callbacks will be executed.
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*/
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struct klp_callbacks {
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klp_pre_patch_t pre_patch;
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klp_post_patch_t post_patch;
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klp_pre_unpatch_t pre_unpatch;
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klp_post_unpatch_t post_unpatch;
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bool post_unpatch_enabled;
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};
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/*
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* 'struct klp_{func,object}_ext' are compact "external" representations of
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* 'struct klp_{func,object}'. They are used by objtool for livepatch
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* generation. The structs are then read by the livepatch module and converted
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* to the real structs before calling klp_enable_patch().
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*
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* TODO make these the official API for klp_enable_patch(). That should
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* simplify livepatch's interface as well as its data structure lifetime
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* management.
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*/
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struct klp_func_ext {
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const char *old_name;
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void *new_func;
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unsigned long sympos;
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};
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struct klp_object_ext {
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const char *name;
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struct klp_func_ext *funcs;
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struct klp_callbacks callbacks;
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unsigned int nr_funcs;
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};
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#endif /* _LINUX_LIVEPATCH_EXTERNAL_H_ */
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