Recently, when doing kgdb on my cpu which arch is mips_64, I encounter some problems.
arch : mips_64-octeon kernel-version: linux 2.6.32 when setting watchpoints on the kernel , it logs that (gdb) watch jiffies Sending packet: $mffffffff80da0800,8#f6...Ack Packet received: 00000001000026ae Sending packet: $mffffffff80da0800,8#f6...Ack Packet received: 00000001000026ae Hardware watchpoint 1: jiffies (gdb) c Continuing. Sending packet: $mffffffff802cd42c,4#27...Ack Packet received: 0000000d Sending packet: $mffffffff80da0800,8#f6...Ack Packet received: 00000001000026ae Sending packet: $Z2,ffffffff80da0800,8#41...Ack Packet received: ==============================================>empty package Packet Z2 (write-watchpoint) is NOT supported Warning: Could not insert hardware watchpoint 1. Could not insert hardware breakpoints: You may have requested too many hardware breakpoints/watchpoints. then, I open the switch (gdb) set remote write-watchpoint-packet on (gdb) c Continuing. Sending packet: $mffffffff802cd42c,4#27...Ack Packet received: 0000000d Sending packet: $mffffffff80da0800,8#f6...Ack Packet received: 00000001000026ae Sending packet: $Z2,ffffffff80da0800,8#41...Ack Packet received: Enabled packet Z2 (write-watchpoint) not recognized by stub====================>stub no support watchpoint ? Searching the http://git.kernel.org/cgit/linux/kernel/git/jwessel/kgdb.git/log/?qt=grep&q=mips , I was noticed that mips har support the hardware watchpoint on kgdb. But when reading the kernel source code , only kgdb.c in .../x86/kernel which define such functions like kgdb_set_hw_break / kgdb_remove_hw_break and so on. That's confuse me so much. Many thanks for support! ------------------------------------------------------------------------------ Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds _______________________________________________ Kgdb-bugreport mailing list Kgdb-bugreport@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kgdb-bugreport
