kernel/fiasco/src/kern/thread-log.cpp

   1 IMPLEMENTATION [log]:
   2
   3 #include <alloca.h>
   4 #include <cstring>
   5 #include "config.h"
   6 #include "jdb_trace.h"
   7 #include "jdb_tbuf.h"
   8 #include "types.h"
   9 #include "cpu_lock.h"
  10
  11 PUBLIC static inline NEEDS["jdb_trace.h"]
  12 int
  13 Thread::log_page_fault()
  14 {
  15   return Jdb_pf_trace::log();
  16 }
  17
  18
  19 /** Page-fault logging.
  20  */
  21 void
  22 Thread::page_fault_log(Address pfa, unsigned error_code, unsigned long eip)
  23 {
  24   if (Jdb_pf_trace::check_restriction(current_thread()->dbg_info()->dbg_id(), pfa))
  25     {
  26       Lock_guard <Cpu_lock> guard (&cpu_lock);
  27
  28       Tb_entry_pf *tb = static_cast<Tb_entry_pf*>
  29         (EXPECT_TRUE(Jdb_pf_trace::log_buf()) ? Jdb_tbuf::new_entry()
  30                                     : alloca(sizeof(Tb_entry_pf)));
  31       tb->set(this, eip, pfa, error_code, current()->space());
  32
  33       if (EXPECT_TRUE(Jdb_pf_trace::log_buf()))
  34         Jdb_tbuf::commit_entry();
  35       else
  36         Jdb_tbuf::direct_log_entry(tb, "PF");
  37     }
  38 }
  39