我正在调试gdb中的程序，并且当访问内存区域0x08049000至0x0804a000时，我希望该程序停止。当我尝试手动设置内存断点时，gdb似乎一次不支持两个以上的位置。

(gdb) awatch *0x08049000
Hardware access (read/write) watchpoint 1: *0x08049000
(gdb) awatch *0x08049001
Hardware access (read/write) watchpoint 2: *0x08049001
(gdb) awatch *0x08049002
Hardware access (read/write) watchpoint 3: *0x08049002
(gdb) run
Starting program: /home/iblue/git/some-code/some-executable
Warning:
Could not insert hardware watchpoint 3.
Could not insert hardware breakpoints:
You may have requested too many hardware breakpoints/watchpoints.

已经有一个问题在哪里被问到了，答案是，用valgrind可以做到这一点。不幸的是，答案没有包含任何示例或对valgrind手册的引用

因此：如何查看整个内存区域？