Example: stack1.c

up: index
prev: stack0a.c
next: prov0.c

    #include <stdio.h>
    #include <cheriintrin.h>
    
    int main()
    {
        int i;
    
        if(cheri_offset_get(&i) != 0)
        {
            fprintf(stderr,"non-zero offset\n");
            return(10);
        }
        if(cheri_length_get(&i) != sizeof(int))
        {
            fprintf(stderr,"allocation too small\n");
            return(20);
        }
        fprintf(stderr,"allocation was exact\n");
    }

Experimental data (what does this mean?)

gcc-morello-O0
gcc-morello-O3
clang-morello-O0-bounds-conservative
clang-morello-O3-bounds-conservative
clang-morello-O0-bounds-references-only
clang-morello-O0-bounds-subobject-safe
clang-morello-O3-bounds-subobject-safe
clang-morello-O0-bounds-aggressive
clang-morello-O0-bounds-very-aggressive
clang-morello-O0-bounds-everywhere-unsafe
clang-riscv-O0-bounds-conservative
clang-riscv-O3-bounds-conservative
clang-riscv-O0-bounds-references-only
clang-riscv-O0-bounds-subobject-safe
clang-riscv-O3-bounds-subobject-safe
clang-riscv-O0-bounds-aggressive
clang-riscv-O0-bounds-very-aggressive
clang-riscv-O0-bounds-everywhere-unsafe
cerberus-cheri
cerberus-cheri-no-pnvi
cerberus-cheri-revocation
cerberus-cheri-revocation-no-pnvi
cerberus-cheri-cornucopia
cerberus-cheri-cornucopia-no-pnvi
 
allocation was exact