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| author | Tiezhu Yang <yangtiezhu@loongson.cn> | 2021-03-25 15:50:01 +0300 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2021-03-29 12:17:09 +0300 |
| commit | 66633abd0642f1e89d26e15f36fb13d3a1c535ff (patch) | |
| tree | c444f05dd91665a6d098af42458e536eb7031132 /arch | |
| parent | 509d36a941a3466b78d4377913623d210b162458 (diff) | |
| download | linux-66633abd0642f1e89d26e15f36fb13d3a1c535ff.tar.xz | |
MIPS/bpf: Enable bpf_probe_read{, str}() on MIPS again
After commit 0ebeea8ca8a4 ("bpf: Restrict bpf_probe_read{, str}() only to
archs where they work"), bpf_probe_read{, str}() functions were no longer
available on MIPS, so there exist some errors when running bpf program:
root@linux:/home/loongson/bcc# python examples/tracing/task_switch.py
bpf: Failed to load program: Invalid argument
[...]
11: (85) call bpf_probe_read#4
unknown func bpf_probe_read#4
[...]
Exception: Failed to load BPF program count_sched: Invalid argument
ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE should be restricted to archs
with non-overlapping address ranges, but they can overlap in EVA mode
on MIPS, so select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA in
arch/mips/Kconfig, otherwise the bpf old helper bpf_probe_read() will
not be available.
This is similar with the commit d195b1d1d119 ("powerpc/bpf: Enable
bpf_probe_read{, str}() on powerpc again").
Fixes: 0ebeea8ca8a4 ("bpf: Restrict bpf_probe_read{, str}() only to archs where they work")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 160b3a890840..32158c2f204f 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -6,6 +6,7 @@ config MIPS select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT select ARCH_HAS_FORTIFY_SOURCE select ARCH_HAS_KCOV + select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI) select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_HAS_UBSAN_SANITIZE_ALL |