diff options
Diffstat (limited to 'gdb/i386fbsd-nat.c')
| -rw-r--r-- | gdb/i386fbsd-nat.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gdb/i386fbsd-nat.c b/gdb/i386fbsd-nat.c index ad439e3..6c43f2c 100644 --- a/gdb/i386fbsd-nat.c +++ b/gdb/i386fbsd-nat.c @@ -116,6 +116,37 @@ i386fbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb) } +#ifdef PT_GETXSTATE_INFO +/* Implement the to_read_description method. */ + +static const struct target_desc * +i386fbsd_read_description (struct target_ops *ops) +{ + static int xsave_probed; + static uint64_t xcr0; + + if (!xsave_probed) + { + struct ptrace_xstate_info info; + + if (ptrace (PT_GETXSTATE_INFO, ptid_get_pid (inferior_ptid), + (PTRACE_TYPE_ARG3) &info, sizeof (info)) == 0) + { + i386bsd_xsave_len = info.xsave_len; + xcr0 = info.xsave_mask; + } + xsave_probed = 1; + } + + if (i386bsd_xsave_len != 0) + { + return i386_target_description (xcr0); + } + else + return tdesc_i386; +} +#endif + /* Prevent warning from -Wmissing-prototypes. */ void _initialize_i386fbsd_nat (void); @@ -140,6 +171,9 @@ _initialize_i386fbsd_nat (void) #endif /* HAVE_PT_GETDBREGS */ +#ifdef PT_GETXSTATE_INFO + t->to_read_description = i386fbsd_read_description; +#endif t->to_resume = i386fbsd_resume; t->to_pid_to_exec_file = fbsd_pid_to_exec_file; |