tools.nes/tests/asan_reserve_constant.s, branch mainTools for NES/Famicom development.
https://git.mssola.com/nes/tools.nes/atom?h=main2026-04-08T14:04:12ZImplement the asan:stack statement2026-04-08T14:04:12ZMiquel Sabaté Solàmssola@mssola.com2026-04-08T14:04:12Zurn:sha1:a2cb050ca18fd7c5533d69e9aa093e4f0a40d0fa
This statement allows programmers to reserve a memory range for the
stack. This is useful to reserve a memory region which is not attached
to any variable, and:
1. It is a way to safely reserve space on the $0100 page.
2. The --stats/--write-info flags will be able to add up the memory
space reserved for the stack.
3. Future tooling might be able to use this value as a way to detect
stack overflows.
Signed-off-by: Miquel Sabaté Solà <mssola@mssola.com>
Allow constants in asan:reserve statements2025-12-15T21:15:09ZMiquel Sabaté Solàmssola@mssola.com2025-12-15T21:15:09Zurn:sha1:ec935330d4518829d01bbdf5670c4569fa07a567
This way, if you define a constant like:
MY_BUFFER_LEN_IN_BYTES = $10
You can then declare your buffer like so:
zp_buffer = $00 ; asan:reserve MY_BUFFER_LEN_IN_BYTES
And then further in the code you can rely on just using the constant for
bound checking, and then the address sanitizer will check on bound
checks via static analysis as well.
Signed-off-by: Miquel Sabaté Solà <mssola@mssola.com>