Searching for Hardware Watchpoint Support information? Find all needed info by using official links provided below.
https://sourceware.org/gdb/onlinedocs/gdb/Set-Watchpoints.html
GDB sets a hardware watchpoint if possible. Hardware watchpoints execute very quickly, and the debugger reports a change in value at the exact instruction where the change occurs. If GDB cannot set a hardware watchpoint, it sets a software watchpoint, which executes more slowly and reports the change in value at the next statement, not the instruction, after the change occurs.
https://stackoverflow.com/questions/10614352/are-hardware-watchpoints-available-only-for-certain-memory-addresses
Why wasn't hardware watchpoint accepted after the first command? You didn't tell us what processor you are using. I am guessing that your processor does not support hardware watchpoints for addresses that are not aligned on 4-byte boundary. GDB can't set a hardware watchpoint on an address if your hardware doesn't support such watchpoints.
https://www.cs.cmu.edu/~yixinluo/index_files/unlimited-watchpoints_asplos12.pdf
hardware support for watchpoints. As Wahbe discussed, existing support can be broken down into specialized hardware watchpoint mechanisms and virtual memory [43]. The rst commonly takes the form of watchpoint registers that hold individual addresses and raise exceptions when these addresses are touched. Unfortunately,
http://processors.wiki.ti.com/index.php/Data_Breakpoint/Watchpoint
Data Breakpoint/Watchpoint on CCSv4. Data Breakpoint/Watchpoint is supported on Code_Composer_Studio_v4. Check the recording of watchpoint for usage - link. What if I need to use this on Hardware? See: Advanced Event Triggering and Unified Breakpoint Manager. Difference between Software and Hardware Breakpoints
https://events.static.linuxfound.org/images/stories/pdf/lfcs2012_weigand.pdf
Hardware breakpoint/watchpoint support added to Linux kernel 2.6.37 Support exploited by GDB 7.3 Hardware pre-requisites Cortex-A8: limited HW support, not currently exploited by Linux kernel Cortex-A9: improved HW support, Linux kernel supports one single HW watchpoint
https://e2e.ti.com/support/microcontrollers/msp430/f/166/t/844461?Compiler-MSP430FR5969-watchpoint-support
I can't tell what you are using as the gdb server. I tried out mspdebug and it appears to support watchpoints. At least in command line mode. Watchpoint support will depend on the gdb server as it just uses the EEM hardware to monitor memory access in a slightly different way from the typical breakpoint.
https://e2e.ti.com/support/tools/ccs/f/81/t/697283?CCS-hardware-watchpoint-Debugger-Response-Condition
Tool/software: Code Composer Studio Hello, I have a situation where GP4[0] is being set high, but not understood why. So I need to setup a complex hardware watchpoint, with condition of that bit being written, but with other discrimination logic (since it is not any write, but under certain conditions where it is set high unexpectedly).
https://www.kernel.org/doc/ols/2009/ols2009-pages-149-158.pdf
Hardware Breakpoint (or watchpoint) usage in Linux Kernel Prasad Krishnan IBM Linux Technology Centre [email protected] Abstract The Hardware Breakpoint (also known as watchpoint or debug) registers, hitherto was a frugally used resource in the Linux Kernel (ptrace and in-kernel debuggers being the users), with little co-operation ...
https://undo.io/resources/gdb-watchpoint/watchpoints-more-than-watch-and-continue/
You'll have noticed the "Hardware watchpoint" in the output from GDB. Watchpoints preceed hardware support and GDB has a notion of software watchpoints as well. If we start the program again with start. If I then do: (gdb) watch foo Hardware watchpoint 6: foo
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