![Adrian Hunter](/assets/img/avatar_default.png)
In the absence of vmlinux, perf tools uses kallsyms for symbols. If the user has access, now also map to /proc/kcore. The dso data_type is now set to either DSO_BINARY_TYPE__KCORE or DSO_BINARY_TYPE__GUEST_KCORE as approprite. This patch breaks the "vmlinux symtab matches kallsyms" test. That is fixed in a following patch. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1375875537-4509-8-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
167 lines
4.5 KiB
C
167 lines
4.5 KiB
C
#ifndef __PERF_DSO
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#define __PERF_DSO
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#include <linux/types.h>
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#include <linux/rbtree.h>
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#include <stdbool.h>
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#include "types.h"
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#include "map.h"
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enum dso_binary_type {
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DSO_BINARY_TYPE__KALLSYMS = 0,
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DSO_BINARY_TYPE__GUEST_KALLSYMS,
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DSO_BINARY_TYPE__VMLINUX,
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DSO_BINARY_TYPE__GUEST_VMLINUX,
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DSO_BINARY_TYPE__JAVA_JIT,
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DSO_BINARY_TYPE__DEBUGLINK,
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DSO_BINARY_TYPE__BUILD_ID_CACHE,
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DSO_BINARY_TYPE__FEDORA_DEBUGINFO,
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DSO_BINARY_TYPE__UBUNTU_DEBUGINFO,
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DSO_BINARY_TYPE__BUILDID_DEBUGINFO,
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DSO_BINARY_TYPE__SYSTEM_PATH_DSO,
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DSO_BINARY_TYPE__GUEST_KMODULE,
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DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE,
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DSO_BINARY_TYPE__KCORE,
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DSO_BINARY_TYPE__GUEST_KCORE,
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DSO_BINARY_TYPE__NOT_FOUND,
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};
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enum dso_kernel_type {
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DSO_TYPE_USER = 0,
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DSO_TYPE_KERNEL,
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DSO_TYPE_GUEST_KERNEL
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};
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enum dso_swap_type {
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DSO_SWAP__UNSET,
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DSO_SWAP__NO,
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DSO_SWAP__YES,
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};
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#define DSO__SWAP(dso, type, val) \
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({ \
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type ____r = val; \
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BUG_ON(dso->needs_swap == DSO_SWAP__UNSET); \
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if (dso->needs_swap == DSO_SWAP__YES) { \
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switch (sizeof(____r)) { \
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case 2: \
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____r = bswap_16(val); \
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break; \
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case 4: \
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____r = bswap_32(val); \
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break; \
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case 8: \
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____r = bswap_64(val); \
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break; \
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default: \
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BUG_ON(1); \
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} \
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} \
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____r; \
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})
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#define DSO__DATA_CACHE_SIZE 4096
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#define DSO__DATA_CACHE_MASK ~(DSO__DATA_CACHE_SIZE - 1)
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struct dso_cache {
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struct rb_node rb_node;
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u64 offset;
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u64 size;
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char data[0];
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};
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struct dso {
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struct list_head node;
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struct rb_root symbols[MAP__NR_TYPES];
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struct rb_root symbol_names[MAP__NR_TYPES];
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struct rb_root cache;
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enum dso_kernel_type kernel;
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enum dso_swap_type needs_swap;
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enum dso_binary_type symtab_type;
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enum dso_binary_type data_type;
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u8 adjust_symbols:1;
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u8 has_build_id:1;
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u8 hit:1;
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u8 annotate_warned:1;
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u8 sname_alloc:1;
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u8 lname_alloc:1;
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u8 sorted_by_name;
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u8 loaded;
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u8 rel;
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u8 build_id[BUILD_ID_SIZE];
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const char *short_name;
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char *long_name;
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u16 long_name_len;
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u16 short_name_len;
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char name[0];
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};
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static inline void dso__set_loaded(struct dso *dso, enum map_type type)
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{
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dso->loaded |= (1 << type);
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}
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struct dso *dso__new(const char *name);
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void dso__delete(struct dso *dso);
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void dso__set_short_name(struct dso *dso, const char *name);
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void dso__set_long_name(struct dso *dso, char *name);
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int dso__name_len(const struct dso *dso);
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bool dso__loaded(const struct dso *dso, enum map_type type);
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bool dso__sorted_by_name(const struct dso *dso, enum map_type type);
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void dso__set_sorted_by_name(struct dso *dso, enum map_type type);
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void dso__sort_by_name(struct dso *dso, enum map_type type);
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void dso__set_build_id(struct dso *dso, void *build_id);
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bool dso__build_id_equal(const struct dso *dso, u8 *build_id);
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void dso__read_running_kernel_build_id(struct dso *dso,
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struct machine *machine);
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int dso__kernel_module_get_build_id(struct dso *dso, const char *root_dir);
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char dso__symtab_origin(const struct dso *dso);
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int dso__binary_type_file(struct dso *dso, enum dso_binary_type type,
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char *root_dir, char *file, size_t size);
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int dso__data_fd(struct dso *dso, struct machine *machine);
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ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
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u64 offset, u8 *data, ssize_t size);
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ssize_t dso__data_read_addr(struct dso *dso, struct map *map,
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struct machine *machine, u64 addr,
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u8 *data, ssize_t size);
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struct map *dso__new_map(const char *name);
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struct dso *dso__kernel_findnew(struct machine *machine, const char *name,
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const char *short_name, int dso_type);
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void dsos__add(struct list_head *head, struct dso *dso);
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struct dso *dsos__find(struct list_head *head, const char *name,
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bool cmp_short);
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struct dso *__dsos__findnew(struct list_head *head, const char *name);
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bool __dsos__read_build_ids(struct list_head *head, bool with_hits);
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size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp,
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bool (skip)(struct dso *dso, int parm), int parm);
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size_t __dsos__fprintf(struct list_head *head, FILE *fp);
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size_t dso__fprintf_buildid(struct dso *dso, FILE *fp);
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size_t dso__fprintf_symbols_by_name(struct dso *dso,
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enum map_type type, FILE *fp);
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size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp);
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static inline bool dso__is_vmlinux(struct dso *dso)
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{
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return dso->data_type == DSO_BINARY_TYPE__VMLINUX ||
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dso->data_type == DSO_BINARY_TYPE__GUEST_VMLINUX;
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}
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static inline bool dso__is_kcore(struct dso *dso)
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{
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return dso->data_type == DSO_BINARY_TYPE__KCORE ||
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dso->data_type == DSO_BINARY_TYPE__GUEST_KCORE;
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}
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#endif /* __PERF_DSO */
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