kamil 241cf91ddc Add support for hardware assisted watchpoints/breakpoints API in ptrace(2) ... Add new ptrace(2) calls: - PT_COUNT_WATCHPOINTS - count the number of available hardware watchpoints - PT_READ_WATCHPOINT - read struct ptrace_watchpoint from the kernel state - PT_WRITE_WATCHPOINT - write new struct ptrace_watchpoint state, this includes enabling and disabling watchpoints The ptrace_watchpoint structure contains MI and MD parts: typedef struct ptrace_watchpoint { int pw_index; /* HW Watchpoint ID (count from 0) */ lwpid_t pw_lwpid; /* LWP described */ struct mdpw pw_md; /* MD fields */ } ptrace_watchpoint_t; For example amd64 defines MD as follows: struct mdpw { void *md_address; int md_condition; int md_length; }; These calls are protected with the __HAVE_PTRACE_WATCHPOINTS guard. Tested on amd64, initial support added for i386 and XEN. Sponsored by <The NetBSD Foundation>		2016-12-15 12:04:17 +00:00
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files.compat	Torn down KSTACK_CHECK_DR0, i386-only feature to detect stack overflow	2016-12-13 10:54:27 +00:00
files.xen	Add support for hardware assisted watchpoints/breakpoints API in ptrace(2)	2016-12-15 12:04:17 +00:00
Makefile.arch.inc
Makefile.xen
std.xen