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1e371e7c98
Fixes suggested by running the Clang memory santizer on the Github CI/CD
pipeline:
- sim_exp_check: Use calloc() to allocate and initialize the PCRE
captured string offset vector. Also check the offsets to ensure they
are captured substrings:
-- If a substring wasn't captured, the offset pair is { -1, -1 }.
(Of course, this would never happen in SIMH. :-)
-- Remove the corresponding "_EXPECT_MATCH_GROUP_{pat}" variable
from the environment when its substring isn't captured. unsetenv()
is locally implemented in scp.c, which sets the environment
variable to an empty string; it isn't actually removed.
Failure occurs in multiple tests.
- _sim_debug_write_flush: Ensure that debug_line_buf_last's underlying
buffer is initialized when realloc-ed. (i650 failure.)
- vid_version: Initialize local variables "compiled" and "running". MSan
claims that these aren't initialized. Reading the SDL source, the
patch level might not be initialized on some platforms. (multiple
sim_video tests.)
NOTE: Do not attempt to run interactive memory-santized simulators on
Linux platforms where ncurses <= 6.2+20201114-2. MSan detects
uninitialized variables within ncurses; newer versions of ncurses fix
them.
Open SIMH machine simulator
This is the codebase of SIMH, a framework and collection of computer system simulators.
SIMH was created by Bob Supnik, originally at Digital Equipment Corporation, and extended by contributions of many other people. It is now an open source project, licensed under an MIT open source license (see LICENSE.txt for the specific wording). The project gatekeepers are the members of the SIMH Steering Group. We welcome and encourage contributions from all. Contributions will be covered by the project license.
The Open SIMH code base was taken from a code base maintained by Mark Pizzolato as of 12 May 2022. From that point onward there is no connection between that source and the Open SIMH code base. A detailed listing of features as of that point may be found in SIMH-V4-status.
PLEASE NOTE
Do not contribute material taken from github.com/simh/simh unless you are the author of the material in question.