feat: consolidated PVS-Studio static analysis fixes & documentation update - #89
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bivex wants to merge 13 commits into
Open
feat: consolidated PVS-Studio static analysis fixes & documentation update#89bivex wants to merge 13 commits into
bivex wants to merge 13 commits into
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- Fix potential buffer overflow and bounds check in main.c (preprocess) - Fix termios c_lflag bitmask truncation on 64-bit platforms in mesg.c - Fix potential null pointer dereferences in pangen2.c, pangen3.c, and run.c - Fix undefined behavior in 64-bit bit shift operations (1UL<<j) in pangen6.c - Fix EVAL AST node child type check logic in pangen6.c - Fix code formatting ambiguity in pangen7.c - Fix potential division by zero modulo in run.c
- Add array bounds guards for string operations in guided.c, msc_tcl.c, and structs.c - Fix sizeof(IArg_cont[IArgno]) target buffer in spinlex.c - Fix block scope formatting in spinlex.c - Declare alldone(int) with noreturn attribute and fix comparison logic in main.c - Guard NULL pointers in eligible() in pangen5.c - Clean up redundant pointer checks in flow.c and mesg.c - Remove redundant loop condition in pangen1.c - Add fallthrough annotations, simplify boolean logic, and remove dead assignment in pangen2.c - Remove unreachable code after fatal() in sym.c - Parenthesize assignment and ternary operator expression in tl_mem.c
…rmatting notes - Explicitly cast int/char arguments to match fprintf format specifiers in pangen2.c and pangen3.c - Add NULL pointer checks in claim_has_accept() in pangen7.c - Guard pointer dereferences in getlocal() and setlocal() in sched.c - Guard NULL pointers when building struct nodes in structs.c - Guard NULL pointers in dupnode() and isequal() in tl_cache.c - Cast memory size arguments to long for printf formatting in tl_cache.c and tl_main.c
…n.c, and condition in run.c - Make NextOpt static 2D array indexed by Level in dstep.c to avoid storing dangling stack pointer - Replace debug assertions with explicit runtime bounds checks for command-line arguments in main.c to prevent buffer overflows from tainted argv data - Remove redundant e->n check in run.c
…and enable -O3 in build flags
…, emstrdup helper, memset zero loop - emalloc() now routes all allocations ≤256 bytes through a 256KB bump-pointer arena, eliminating per-object malloc() overhead and improving cache locality of small objects - emstrdup() replaces scattered emalloc(strlen)+strcpy patterns with a single memcpy call - Symbol and Ordered nodes now allocated from dedicated 512-slot chunk pools in sym.c, reducing malloc calls during symbol table construction by 512x - disambiguate() precomputes combined strlen before emalloc to avoid double traversal - tl_mem.c: replaced manual per-word zeroing loop with a single SIMD-eligible memset call
…arks, and verifier tuning
…tream buffering for C code generator
…col Promela model with atomicity invariants
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Summary
This branch (
dev) combines all recent fixes and updates for the Spin codebase:README.md.main.cmesg.cpangen2.c,pangen3.c, andrun.c1UL << j) inpangen6.crun.cguided.c,msc_tcl.c, andstructs.cspinlex.c(sizeof(IArg_cont[IArgno]))pangen5.c,flow.c,mesg.c,pangen1.c, andsym.cpangen2.cpangen2.c,pangen3.c,tl_cache.c, andtl_main.cpangen7.c,sched.c,structs.c, andtl_cache.cVerification
make clean && make) completed with 0 errors and 0 compiler warnings.