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gdb.py: Support dumping a dummy frame [ci skip]

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This commit is contained in:
Takashi Kokubun 2023-08-03 09:55:36 -07:00
parent c65856d44f
commit b35a222348
1 changed files with 13 additions and 10 deletions
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23
misc/gdb.py
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@ -56,16 +56,17 @@ class CFP(gdb.Command):
except SystemExit: except SystemExit:
return return
cfp = f'(ruby_current_ec->cfp + ({args.uplevel}))' cfp = f'(ruby_current_ec->cfp + ({args.uplevel}))'
end_cfp = self.get_int('ruby_current_ec->vm_stack + ruby_current_ec->vm_stack_size')
cfp_index = int((end_cfp - self.get_int(cfp) - 1) / self.get_int('sizeof(rb_control_frame_t)'))
if args.all: if args.all:
end_cfp = self.get_int('ruby_current_ec->vm_stack + ruby_current_ec->vm_stack_size')
cfp_count = int((end_cfp - self.get_int('ruby_current_ec->cfp')) / self.get_int('sizeof(rb_control_frame_t)')) - 1 # exclude dummy CFP cfp_count = int((end_cfp - self.get_int('ruby_current_ec->cfp')) / self.get_int('sizeof(rb_control_frame_t)')) - 1 # exclude dummy CFP
for i in range(cfp_count): for i in range(cfp_count):
print('-' * 80) print('-' * 80)
self.invoke(str(cfp_count - i - 1), from_tty) self.invoke(str(cfp_count - i - 1), from_tty)
return return
print('CFP (addr=0x{:x}, uplevel={}):'.format(self.get_int(cfp), args.uplevel)) print('CFP (addr=0x{:x}, index={}):'.format(self.get_int(cfp), cfp_index))
gdb.execute(f'p *({cfp})') gdb.execute(f'p *({cfp})')
print() print()
@ -91,14 +92,16 @@ class CFP(gdb.Command):
self.print_env(cfp, -1, self.frame_types(cfp, -1)) self.print_env(cfp, -1, self.frame_types(cfp, -1))
print() print()
if args.stack_size is not None: # We can't calculate BP for the first frame
stack_size = args.stack_size if cfp_index > 0:
else: if args.stack_size is not None:
stack_size = int((self.get_int(f'{cfp}->sp') - self.get_int(f'vm_base_ptr({cfp})')) / 8) stack_size = args.stack_size
print(f'Stack (size={stack_size}):') else:
for i in range(0, stack_size): stack_size = int((self.get_int(f'{cfp}->sp') - self.get_int(f'vm_base_ptr({cfp})')) / 8)
self.print_stack(cfp, i, self.rp(cfp, i)) print(f'Stack (size={stack_size}):')
print(self.regs(cfp, stack_size)) for i in range(0, stack_size):
self.print_stack(cfp, i, self.rp(cfp, i))
print(self.regs(cfp, stack_size))
def print_env(self, cfp, bp_index, content): def print_env(self, cfp, bp_index, content):
ep_index = bp_index + 1 ep_index = bp_index + 1