mirror of
https://github.com/justinian/jsix.git
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11a53e792f
There are a lot of under the hood changes here: - Move syscalls to be a dispatch table, defined by syscalls.inc - Don't need a full process state (push_all) in syscalls now - In push_all, define REGS instead of using offsets - Save TWO stack pointers as well as current saved stack pointer in TCB: - rsp0 is the base of the kernel stack for interrupts - rsp3 is the saved user stack from cpu_data - Update syscall numbers in nulldrv - Some asm-debugging enhancements to the gdb script - fork() still not working
32 lines
807 B
Python
32 lines
807 B
Python
import gdb
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class PrintStackCommand(gdb.Command):
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def __init__(self):
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super().__init__("popc_stack", 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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PrintStackCommand()
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import time
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time.sleep(3.5)
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gdb.execute("target remote :1234")
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gdb.execute("set waiting = false")
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gdb.execute("display/i $rip")
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