Small bug with with the regular protection bits not being decoded when there's a PROT_MAX.
Details
Details
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kaktus - Commits
- rS368022: libsysdecode: correctly decode mmap flags
Doesn't seem like anything uses explicit PROT_MAX()s in base. So here's a sample program to truss.
#include <stddef.h> #include <sys/mman.h> #include <sys/param.h> int main() { int prots[] = { PROT_NONE, PROT_READ, PROT_WRITE, PROT_EXEC, PROT_READ|PROT_WRITE, PROT_READ|PROT_WRITE|PROT_EXEC }; for (size_t i = 0; i < nitems(prots); i++) for (size_t j = 0; j < nitems(prots); j++) mmap(NULL, PAGE_SIZE, prots[i] | PROT_MAX(prots[j]), MAP_ANON, -1, 0); return (0); }
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