14 Commits (syscall)

Author	SHA1	Message	Date
Frans Kaashoek	4cd4d194b8	Use simple linker script to force data segment to be page aligned	3 years ago
Frans Kaashoek	cef1b57d4a	Compile user binary to map text without W and data without X ... Use the flags in elf header to set vm permissions Modify pgbug() so that usertests text segment is without W Add test to check app cannot write text segment	3 years ago
Frans Kaashoek	899cc02660	Experiment with being more precise setting permissions for user pages. ... Growing adds R|W pages (without X). Exec() marks the stack only R|W. Probably could setup permissions for text and data better if we call ld with --no-omagic instead of -N.	3 years ago
Robert Morris	f4b3edf5ab	comment nits	3 years ago
l0stman	19ff379661	exec() only accepts MAXARG arguments ... The terminating NULL string is already included (see sys_exec()).	4 years ago
Robert Morris	6de0381d61	check for alignment just once	4 years ago
Robert Morris	5860dcd07d	usertest for exec() out of memory recovery ... and fix a few exec() bugs	5 years ago
Robert Morris	f2ec6777bd	fix a bug in the out-of-memory handling code in exec	5 years ago
Robert Morris	5494c91705	rename p->tf to p->trapframe, for consistency with p->context	6 years ago
Robert Morris	56583b1402	updated alarmtest	6 years ago
Robert Morris	9a817bd134	rationalize some vm function names	7 years ago
Frans Kaashoek	b2e9c8eea5	Clear U bit for second stack page so that it functions as a guard page	7 years ago
Frans Kaashoek	67702cf706	Checkpoint switching to per-process locks, in attempt clarify xv6's ... locking plan, which is a difficult to understand because ptable lock protects many invariants. This implementation has a bug: once in a while xv6 unlocks a proc lock that is locked by another core.	7 years ago
Robert Morris	5753553213	separate source into kernel/ user/ mkfs/	7 years ago