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/linux-6.6.21/Documentation/powerpc/
Dptrace.rst9 2 hardware watchpoints (read, write and read-write) (DAC)
10 2 value conditions for the hardware watchpoints (DVC)
22 be returned here is the minimum alignment for the hardware watchpoints.
24 an 8-byte alignment restriction for hardware watchpoints. We'd like to avoid
29 watchpoints and whether it supports a range of addresses and a condition.
86 With this GDB can ask for all kinds of hardware breakpoints and watchpoints
Ddawr-power9.rst51 For GDB watchpoints (ie 'watch' command) on POWER9 bare metal , GDB
/linux-6.6.21/Documentation/dev-tools/
Dkcsan.rst171 watchpoints more frequently will result in the likelihood of races to be
239 (a) by injecting various delays, and (b) by using address watchpoints (or
244 same address just raced. Using hardware watchpoints, this is the approach taken
247 Unlike DataCollider, KCSAN does not use hardware watchpoints, but instead
248 relies on compiler instrumentation and "soft watchpoints".
250 In KCSAN, watchpoints are implemented using an efficient encoding that stores
252 watchpoints" are portability and greater flexibility. KCSAN then relies on the
266 sets up a watchpoint on marked accesses. By never setting up watchpoints for
312 "prefetch" accesses. Also recall that watchpoints are only set up for plain
341 setting up watchpoints, racy writes from devices can also be detected.
/linux-6.6.21/kernel/kcsan/
Dcore.c103 static atomic_long_t watchpoints[CONFIG_KCSAN_NUM_WATCHPOINTS + NUM_SLOTS-1]; variable
130 watchpoint = &watchpoints[SLOT_IDX_FAST(slot, i)]; in find_watchpoint()
158 …UG_ON(SLOT_IDX(CONFIG_KCSAN_NUM_WATCHPOINTS-1, KCSAN_CHECK_ADJACENT) != ARRAY_SIZE(watchpoints)-1); in insert_watchpoint()
159 …DX(CONFIG_KCSAN_NUM_WATCHPOINTS-1, KCSAN_CHECK_ADJACENT+1) != ARRAY_SIZE(watchpoints) - NUM_SLOTS); in insert_watchpoint()
165 watchpoint = &watchpoints[SLOT_IDX(slot, i)]; in insert_watchpoint()
507 kcsan_report_set_info(ptr, size, type, ip, watchpoint - watchpoints); in kcsan_found_watchpoint()
679 value_change, watchpoint - watchpoints, in kcsan_setup_watchpoint()
/linux-6.6.21/lib/
DKconfig.kcsan91 int "Number of available watchpoints"
94 Total number of available watchpoints. An address range maps into a
96 Although larger number of watchpoints may not be usable due to
/linux-6.6.21/Documentation/core-api/
Dentry.rst205 whether these exceptions happened in user-space (breakpoints or watchpoints) or
/linux-6.6.21/tools/memory-model/Documentation/
Daccess-marking.txt312 it is not necessarily a full replacement for hardware watchpoints.
313 On the other hand, neither are hardware watchpoints a full replacement