#include "unwind.h" #include "thread.h" #include "session.h" #include "debug.h" #include "arch/common.h" struct unwind_libunwind_ops __weak *local_unwind_libunwind_ops; struct unwind_libunwind_ops __weak *x86_32_unwind_libunwind_ops; struct unwind_libunwind_ops __weak *arm64_unwind_libunwind_ops; static void unwind__register_ops(struct thread *thread, struct unwind_libunwind_ops *ops) { thread->unwind_libunwind_ops = ops; } int unwind__prepare_access(struct thread *thread, struct map *map, bool *initialized) { const char *arch; enum dso_type dso_type; struct unwind_libunwind_ops *ops = local_unwind_libunwind_ops; int err; if (thread->addr_space) { pr_debug("unwind: thread map already set, dso=%s\n", map->dso->name); if (initialized) *initialized = true; return 0; } /* env->arch is NULL for live-mode (i.e. perf top) */ if (!thread->mg->machine->env || !thread->mg->machine->env->arch) goto out_register; dso_type = dso__type(map->dso, thread->mg->machine); if (dso_type == DSO__TYPE_UNKNOWN) return 0; arch = normalize_arch(thread->mg->machine->env->arch); if (!strcmp(arch, "x86")) { if (dso_type != DSO__TYPE_64BIT) ops = x86_32_unwind_libunwind_ops; } else if (!strcmp(arch, "arm64") || !strcmp(arch, "arm")) { if (dso_type == DSO__TYPE_64BIT) ops = arm64_unwind_libunwind_ops; } if (!ops) { pr_err("unwind: target platform=%s is not supported\n", arch); return -1; } out_register: unwind__register_ops(thread, ops); err = thread->unwind_libunwind_ops->prepare_access(thread); if (initialized) *initialized = err ? false : true; return err; } void unwind__flush_access(struct thread *thread) { if (thread->unwind_libunwind_ops) thread->unwind_libunwind_ops->flush_access(thread); } void unwind__finish_access(struct thread *thread) { if (thread->unwind_libunwind_ops) thread->unwind_libunwind_ops->finish_access(thread); } int unwind__get_entries(unwind_entry_cb_t cb, void *arg, struct thread *thread, struct perf_sample *data, int max_stack) { if (thread->unwind_libunwind_ops) return thread->unwind_libunwind_ops->get_entries(cb, arg, thread, data, max_stack); return 0; } g/net/irda/irlmp_frame.c'>
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-24 16:54:39 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-24 16:54:39 -0800
commit883af14e67e8b8702b5560aa64c888c0cd0bd66c (patch)
tree74e3a6b53f5fad9f7848ab1b9f6921b7012940a4 /net/irda/irlmp_frame.c
parent0263d4ebd94b36280608e296cba39b924b6e832b (diff)
parentaab45453ff5c77200c6da4ac909f7a4392aed17e (diff)
Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton: "26 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (26 commits) MAINTAINERS: add Dan Streetman to zbud maintainers MAINTAINERS: add Dan Streetman to zswap maintainers mm: do not export ioremap_page_range symbol for external module mn10300: fix build error of missing fpu_save() romfs: use different way to generate fsid for BLOCK or MTD frv: add missing atomic64 operations mm, page_alloc: fix premature OOM when racing with cpuset mems update mm, page_alloc: move cpuset seqcount checking to slowpath mm, page_alloc: fix fast-path race with cpuset update or removal mm, page_alloc: fix check for NULL preferred_zone kernel/panic.c: add missing \n fbdev: color map copying bounds checking frv: add atomic64_add_unless() mm/mempolicy.c: do not put mempolicy before using its nodemask radix-tree: fix private list warnings Documentation/filesystems/proc.txt: add VmPin mm, memcg: do not retry precharge charges proc: add a schedule point in proc_pid_readdir() mm: alloc_contig: re-allow CMA to compact FS pages mm/slub.c: trace free objects at KERN_INFO ...
Diffstat (limited to 'net/irda/irlmp_frame.c')