Daniel Borkmann 3ba67dabaa ebpf: bpf_map_*: fix linker error on avr32 and openrisc arch ... Fengguang reported, that on openrisc and avr32 architectures, we get the following linker errors on *_defconfig builds that have no bpf syscall support: net/built-in.o:(.rodata+0x1cd0): undefined reference to `bpf_map_lookup_elem_proto' net/built-in.o:(.rodata+0x1cd4): undefined reference to `bpf_map_update_elem_proto' net/built-in.o:(.rodata+0x1cd8): undefined reference to `bpf_map_delete_elem_proto' Fix it up by providing built-in weak definitions of the symbols, so they can be overridden when the syscall is enabled. I think the issue might be that gcc is not able to optimize all that away. This patch fixes the linker errors for me, tested with Fengguang's make.cross [1] script. [1] https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross Reported-by: Fengguang Wu <fengguang.wu@intel.com> Fixes: d4052c4aea ("ebpf: remove CONFIG_BPF_SYSCALL ifdefs in socket filter code") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-03-06 21:50:55 -05:00
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arraymap.c	ebpf: constify various function pointer structs	2015-03-01 14:05:18 -05:00
core.c	ebpf: bpf_map_*: fix linker error on avr32 and openrisc arch	2015-03-06 21:50:55 -05:00
hashtab.c	ebpf: constify various function pointer structs	2015-03-01 14:05:18 -05:00
helpers.c	ebpf: constify various function pointer structs	2015-03-01 14:05:18 -05:00
Makefile	ebpf: remove kernel test stubs	2015-03-01 14:05:18 -05:00
syscall.c	cls_bpf: add initial eBPF support for programmable classifiers	2015-03-01 14:05:19 -05:00
verifier.c	ebpf: move read-only fields to bpf_prog and shrink bpf_prog_aux	2015-03-01 14:05:19 -05:00