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https://github.com/justinian/jsix.git
synced 2025-12-10 08:24:32 -08:00
Justin C. Miller
ca7f78565d
Added the command j6bt (and renamed popc_stack to j6stack) to make tracking kernel callstacks across interrupts easier.
60 lines
1.5 KiB
Python
60 lines
1.5 KiB
Python
import gdb
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class PrintStackCommand(gdb.Command):
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def __init__(self):
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super().__init__("j6stack", gdb.COMMAND_DATA)
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def invoke(self, arg, from_tty):
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args = gdb.string_to_argv(arg)
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base = "$rsp"
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if len(args) > 0:
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base = args[0]
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depth = 22
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if len(args) > 1:
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depth = int(args[1])
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for i in range(depth-1, -1, -1):
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offset = i * 8
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base_addr = gdb.parse_and_eval(base)
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value = gdb.parse_and_eval(f"*(uint64_t*)({base} + {offset})")
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print("{:016x} (+{:04x}): {:016x}".format(int(base_addr) + offset, offset, int(value)))
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class PrintBacktraceCommand(gdb.Command):
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def __init__(self):
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super().__init__("j6bt", gdb.COMMAND_DATA)
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def invoke(self, arg, from_tty):
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args = gdb.string_to_argv(arg)
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frame = "$rbp"
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if len(args) > 0:
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frame = args[0]
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depth = 30
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if len(args) > 1:
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depth = int(args[1])
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for i in range(depth-1, -1, -1):
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ret = gdb.parse_and_eval(f"*(uint64_t*)({frame} + 8)")
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frame = gdb.parse_and_eval(f"*(uint64_t*)({frame})")
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name = ""
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block = gdb.block_for_pc(int(ret))
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if block:
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name = block.function or ""
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print("{:016x} {}".format(int(ret), name))
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if frame == 0 or ret == 0:
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return
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PrintStackCommand()
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PrintBacktraceCommand()
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gdb.execute("target remote :1234")
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gdb.execute("display/i $rip")
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