Gianluca Borello f0318d01b6 bpf: allow adjusted map element values to spill ... commit 484611357c ("bpf: allow access into map value arrays") introduces the ability to do pointer math inside a map element value via the PTR_TO_MAP_VALUE_ADJ register type. The current support doesn't handle the case where a PTR_TO_MAP_VALUE_ADJ is spilled into the stack, limiting several use cases, especially when generating bpf code from a compiler. Handle this case by explicitly enabling the register type PTR_TO_MAP_VALUE_ADJ to be spilled. Also, make sure that min_value and max_value are reset just for BPF_LDX operations that don't result in a restore of a spilled register from stack. Signed-off-by: Gianluca Borello <g.borello@gmail.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-01-09 16:56:27 -05:00
..
arraymap.c	bpf: Add bpf_current_task_under_cgroup helper	2016-08-12 21:49:41 -07:00
bpf_lru_list.c	bpf: Fix compilation warning in __bpf_lru_list_rotate_inactive	2016-11-16 11:30:56 -05:00
bpf_lru_list.h	bpf: Add percpu LRU list	2016-11-15 11:50:20 -05:00
cgroup.c	bpf: Add new cgroup attach type to enable sock modifications	2016-12-02 13:46:08 -05:00
core.c	bpf: fix overflow in prog accounting	2016-12-17 21:27:44 -05:00
hashtab.c	bpf: Add BPF_MAP_TYPE_LRU_PERCPU_HASH	2016-11-15 11:50:20 -05:00
helpers.c	bpf: add helper for retrieving current numa node id	2016-10-22 17:05:52 -04:00
inode.c	bpf: allow for mount options to specify permissions	2016-11-27 20:38:47 -05:00
Makefile	cgroup: add support for eBPF programs	2016-11-25 16:25:52 -05:00
percpu_freelist.c	bpf: introduce percpu_freelist	2016-03-08 15:28:31 -05:00
percpu_freelist.h	bpf: introduce percpu_freelist	2016-03-08 15:28:31 -05:00
stackmap.c	bpf: add BPF_CALL_x macros for declaring helpers	2016-09-09 19:36:04 -07:00
syscall.c	bpf: fix overflow in prog accounting	2016-12-17 21:27:44 -05:00
verifier.c	bpf: allow adjusted map element values to spill	2017-01-09 16:56:27 -05:00