def gdb_select_thread(_, target):
hexfile = test_harness.build_program(['multithreaded.S'], image_type='raw')
with EmulatorProcess(hexfile, num_cores=2), DebugConnection() as conn:
# Read thread ID
conn.expect('qC', 'QC01')
# Each line is one thread
tests = [
(7, 0xc7733c56),
(5, 0xf54adec3),
(1, 0x5afaf01e),
(2, 0x1964682e),
(3, 0x16cc6be1),
(8, 0xcbff923),
(4, 0x4596de2),
(6, 0xcd920ca6),
]
# Step all threads through initialization code (5 instructions)
for thid in range(len(tests)):
# Switch to thread
conn.expect('Hg' + str(thid + 1), 'OK')
# Read thread ID
conn.expect('qC', 'QC0' + str(thid + 1))
for index in range(5):
conn.expect('S', 'S05')
# Read PC register
conn.expect(
'g40',
'{:08x}'.format(test_harness.endian_swap((index + 1) * 4)))
# Now all threads are at the same instruction:
# 00000014 move s0, 1
# Step each thread independently some number of steps and
# write a value to register 1
for index, (num_steps, regval) in enumerate(tests):
conn.expect('Hg' + str(index + 1), 'OK') # Switch to thread
for _ in range(num_steps):
conn.expect('S', 'S05')
conn.expect('G01,{:08x}'.format(regval), 'OK')
# Read back PC and register values
for index, (num_steps, regval) in enumerate(tests):
conn.expect('Hg' + str(index + 1), 'OK') # Switch to thread
conn.expect(
'g40', '{:08x}'.format(
test_harness.endian_swap(0x14 + num_steps * 4)))
conn.expect('g01', '{:08x}'.format(regval))
# Try to switch to an invalid thread ID
conn.expect('Hgfe', '')
# Ensure still on thread 8
conn.expect('qC', 'QC08')
def gdb_select_thread(_, target):
hexfile = test_harness.build_program(['multithreaded.S'], image_type='raw')
with EmulatorProcess(hexfile, num_cores=2), DebugConnection() as conn:
# Read thread ID
conn.expect('qC', 'QC01')
# Each line is one thread
tests = [
(7, 0xc7733c56),
(5, 0xf54adec3),
(1, 0x5afaf01e),
(2, 0x1964682e),
(3, 0x16cc6be1),
(8, 0xcbff923),
(4, 0x4596de2),
(6, 0xcd920ca6),
]
# Step all threads through initialization code (5 instructions)
for thid in range(len(tests)):
# Switch to thread
conn.expect('Hg' + str(thid + 1), 'OK')
# Read thread ID
conn.expect('qC', 'QC0' + str(thid + 1))
for index in range(5):
conn.expect('S', 'S05')
# Read PC register
conn.expect('g40', '{:08x}'.format(
test_harness.endian_swap((index + 1) * 4)))
# Now all threads are at the same instruction:
# 00000014 move s0, 1
# Step each thread independently some number of steps and
# write a value to register 1
for index, (num_steps, regval) in enumerate(tests):
conn.expect('Hg' + str(index + 1), 'OK') # Switch to thread
for _ in range(num_steps):
conn.expect('S', 'S05')
conn.expect('G01,{:08x}'.format(regval), 'OK')
# Read back PC and register values
for index, (num_steps, regval) in enumerate(tests):
conn.expect('Hg' + str(index + 1), 'OK') # Switch to thread
conn.expect('g40', '{:08x}'.format(
test_harness.endian_swap(0x14 + num_steps * 4)))
conn.expect('g01', '{:08x}'.format(regval))
# Try to switch to an invalid thread ID
conn.expect('Hgfe', '')
# Ensure still on thread 8
conn.expect('qC', 'QC08')