b6dace455e
Change how vendor hooks are instantiated to promote more complete structure definition in the ABI XML description without complicating hook definition for partners. We don't want to force partners to include all headers as part of the hook definition in include/trace/hooks/ since that causes extra headers to be included in source files that runs the risk of changing visibility resulting in CRC changes to KMI symbols. Instead continue the practice of using forward declarations in the hook header files. Instead of instantiating all hook tracepoints globally in drivers/android/vendor_hooks.c, use subsystem-specific vendor_hooks.c if inclusion of subsystem-specific header files is required. This avoids namespace collisions between internal header files and limits the exposure to the internal headers to the instantiation, not the call sites. In this patch, all of the scheduler related hooks are instantiated in kernel/sched/vendor_hooks.c which can cleanly include scheduler-related header files to provide full type visibility. Bug: 233047575 Signed-off-by: Todd Kjos <tkjos@google.com> Change-Id: Ife5a66c2968de73e3f6d05840411310611e2e175
59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM cgroup
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH trace/hooks
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#if !defined(_TRACE_HOOK_CGROUP_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_HOOK_CGROUP_H
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#include <trace/hooks/vendor_hooks.h>
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#ifndef __GENKSYMS__
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struct cgroup_taskset;
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#else
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/* struct cgroup_taskset */
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#include <../kernel/cgroup/cgroup-internal.h>
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#endif
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/* struct cgroup_subsys */
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#include <linux/cgroup-defs.h>
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/* struct task_struct */
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#include <linux/sched.h>
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DECLARE_HOOK(android_vh_cgroup_set_task,
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TP_PROTO(int ret, struct task_struct *task),
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TP_ARGS(ret, task));
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DECLARE_HOOK(android_vh_cgroup_attach,
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TP_PROTO(struct cgroup_subsys *ss, struct cgroup_taskset *tset),
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TP_ARGS(ss, tset))
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DECLARE_RESTRICTED_HOOK(android_rvh_cgroup_force_kthread_migration,
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TP_PROTO(struct task_struct *tsk, struct cgroup *dst_cgrp, bool *force_migration),
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TP_ARGS(tsk, dst_cgrp, force_migration), 1);
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struct mem_cgroup;
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DECLARE_HOOK(android_rvh_memcgv2_init,
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TP_PROTO(struct mem_cgroup *memcg),
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TP_ARGS(memcg));
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DECLARE_HOOK(android_rvh_memcgv2_calc_decayed_watermark,
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TP_PROTO(struct mem_cgroup *memcg),
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TP_ARGS(memcg));
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struct page_counter;
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DECLARE_HOOK(android_rvh_update_watermark,
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TP_PROTO(u64 new, struct page_counter *counter),
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TP_ARGS(new, counter));
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DECLARE_RESTRICTED_HOOK(android_rvh_cpu_cgroup_attach,
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TP_PROTO(struct cgroup_taskset *tset),
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TP_ARGS(tset), 1);
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DECLARE_RESTRICTED_HOOK(android_rvh_cpu_cgroup_can_attach,
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TP_PROTO(struct cgroup_taskset *tset, int *retval),
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TP_ARGS(tset, retval), 1);
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DECLARE_RESTRICTED_HOOK(android_rvh_cpu_cgroup_online,
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TP_PROTO(struct cgroup_subsys_state *css),
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TP_ARGS(css), 1);
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#endif
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#include <trace/define_trace.h>
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