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Merge tag 'probes-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

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Pull probes updates from Masami Hiramatsu:
 "Stack usage reduction for probe events:
   - Allocate string buffers from the heap for uprobe, eprobe, kprobe,
     and fprobe events to avoid stack overflow
   - Allocate traceprobe_parse_context from the heap to prevent
     potential stack overflow
   - Fix a typo in the above commit

  New features for eprobe and tprobe events:
   - Add support for arrays in eprobes
   - Support multiple tprobes on the same tracepoint

  Improve efficiency:
   - Register fprobe-events only when it is enabled to reduce overhead
   - Register tracepoints for tprobe events only when enabled to resolve
     a lock dependency

  Code Cleanup:
   - Add kerneldoc for traceprobe_parse_event_name() and
     __get_insn_slot()
   - Sort #include alphabetically in the probes code
   - Remove the unused 'mod' field from the tprobe-event
   - Clean up the entry-arg storing code in probe-events

  Selftest update
   - Enable fprobe events before checking enable_functions in selftests"

* tag 'probes-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: trace_fprobe: Fix typo of the semicolon
  tracing: Have eprobes handle arrays
  tracing: probes: Add a kerneldoc for traceprobe_parse_event_name()
  tracing: uprobe-event: Allocate string buffers from heap
  tracing: eprobe-event: Allocate string buffers from heap
  tracing: kprobe-event: Allocate string buffers from heap
  tracing: fprobe-event: Allocate string buffers from heap
  tracing: probe: Allocate traceprobe_parse_context from heap
  tracing: probes: Sort #include alphabetically
  kprobes: Add missing kerneldoc for __get_insn_slot
  tracing: tprobe-events: Register tracepoint when enable tprobe event
  selftests: tracing: Enable fprobe events before checking enable_functions
  tracing: fprobe-events: Register fprobe-events only when it is enabled
  tracing: tprobe-events: Support multiple tprobes on the same tracepoint
  tracing: tprobe-events: Remove mod field from tprobe-event
  tracing: probe-events: Cleanup entry-arg storing code
This commit is contained in:
Linus Torvalds
2025-07-30 15:38:01 -07:00
parent a03eec7420 133c302a0c
commit b7dbc2e813
11 changed files with 676 additions and 353 deletions
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4
include/linux/module.h
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@@ -14,6 +14,7 @@
#include <linux/buildid.h>
#include <linux/compiler.h>
#include <linux/cache.h>
#include <linux/cleanup.h>
#include <linux/kmod.h>
#include <linux/init.h>
#include <linux/elf.h>
@@ -1018,4 +1019,7 @@ static inline unsigned long find_kallsyms_symbol_value(struct module *mod,
#endif /* CONFIG_MODULES && CONFIG_KALLSYMS */
/* Define __free(module_put) macro for struct module *. */
DEFINE_FREE(module_put, struct module *, if (_T) module_put(_T))
#endif /* _LINUX_MODULE_H */