libk  Timeline

Parents and children of check-in [5560c2725b]

2019-08-22
02:52
removed sneaky segfault in x86-64 syscall fn where %r8 (the register that contains the pointer to the syscall arguments from the C syscall wrapper, which need to be copied into the correct registers before the kernel is invoked) gets overwritten if the syscall valency > 5, because of overlapping ccall and syscall ABI argument registers - r8 is clobbered by argument 5 and any further attempts to use it as a ptr segfault at best. also modified the report function so that it immediate cancels compilation if a sub-process reports failure. changed allocator function signatures so they can return a condition code if the kernel reports an error; updated example code so it compiles and runs without fault. check-in: e50a476efe user: lexi tags: trunk
01:37
add first iteration of knum header check-in: 5560c2725b user: lexi tags: trunk
00:03
insert explicit cast to hopefully silence compiler warnings on some systems check-in: 7c202a8b17 user: lexi tags: trunk