access mode addr-exp, [byte-size-exp]
The memory specified by addr-exp has been accessed.
addr-exp is any expression that can be evaluated to produce an address. If a symbolic expression is used, the size of the region to be watched is automatically deduced, or you can override that with the `,` syntax. You can also use nonsymbolic, typeless address expressions; in which case, the size is mandatory. For example:
stop modify 0x5678, sizeof(Complex)
mode specifies that the memory was accessed. It can be composed of one or all of the letters:
| r |
The memory has been read. |
|
w |
The memory has been written to. |
|
x |
The memory has been executed. |
|
a |
Stops the process after the access (default). |
|
b |
Stops the process before the access. |
In both cases the program counter will point at the offending instruction. The before and after refer to the side effect.
access is a replacement for modify. While both syntaxes work on Solaris 2.4, 2.5, 2.5.1, 2.6, and Solaris 7, on all of these operating environments except Solaris 2.6, access suffers the same limitations as modify and accepts only a mode of wa.
Limitations of access
No two matched regions may overlap.
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