diff options
Diffstat (limited to 'gdb/armobsd-tdep.c')
| -rw-r--r-- | gdb/armobsd-tdep.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gdb/armobsd-tdep.c b/gdb/armobsd-tdep.c index 87df203..53e3d16 100644 --- a/gdb/armobsd-tdep.c +++ b/gdb/armobsd-tdep.c @@ -72,6 +72,10 @@ static const struct tramp_frame armobsd_sigframe = }; +/* Override default thumb breakpoints. */ +static const char arm_obsd_thumb_le_breakpoint[] = {0xfe, 0xdf}; +static const char arm_obsd_thumb_be_breakpoint[] = {0xdf, 0xfe}; + static void armobsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) @@ -96,6 +100,23 @@ armobsd_init_abi (struct gdbarch_info info, /* OpenBSD/arm uses -fpcc-struct-return by default. */ tdep->struct_return = pcc_struct_return; + + /* Single stepping. */ + set_gdbarch_software_single_step (gdbarch, arm_software_single_step); + + /* Breakpoints. */ + switch (info.byte_order) + { + case BFD_ENDIAN_BIG: + tdep->thumb_breakpoint = arm_obsd_thumb_be_breakpoint; + tdep->thumb_breakpoint_size = sizeof (arm_obsd_thumb_be_breakpoint); + break; + + case BFD_ENDIAN_LITTLE: + tdep->thumb_breakpoint = arm_obsd_thumb_le_breakpoint; + tdep->thumb_breakpoint_size = sizeof (arm_obsd_thumb_le_breakpoint); + break; + } } |