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Merged
Zentrik merged 4 commits into from
Jan 12, 2025
Merged

Support riscv64 #56

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3e231af
Support riscv64
giordano Jan 12, 2025
cb3c243
Add more references for syscall codes
giordano Jan 12, 2025
8643adf
Define `SYS_perf_event_open` and `SYS_prctl` in a single place
giordano Jan 12, 2025
0d5523b
Add asm call for prctl syscall on riscv64
giordano Jan 12, 2025
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2 changes: 1 addition & 1 deletion Project.toml
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
name = "LinuxPerf"
uuid = "b4c46c6c-4fb0-484d-a11a-41bc3392d094"
version = "0.4.2"
version = "0.4.3"

[deps]
PrettyTables = "08abe8d2-0d0c-5749-adfa-8a2ac140af0d"
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20 changes: 20 additions & 0 deletions src/LinuxPerf.jl
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Expand Up @@ -157,16 +157,26 @@ function Base.show(io::IO, e::EventType)
end
end

# To support a new architecture, look for the code corresponding to the `perf_event_open`
# syscall in https://gpages.juszkiewicz.com.pl/syscalls-table/syscalls.html
const SYS_perf_event_open = if Sys.ARCH === :x86_64
# See also https://github.com/torvalds/linux/blob/b62cef9a5c673f1b8083159f5dc03c1c5daced2f/arch/x86/entry/syscalls/syscall_64.tbl
Clong(298)
elseif Sys.ARCH === :i686
# See also https://github.com/torvalds/linux/blob/b62cef9a5c673f1b8083159f5dc03c1c5daced2f/arch/x86/entry/syscalls/syscall_32.tbl
Clong(336)
elseif Sys.ARCH === :aarch64
# See also https://arm64.syscall.sh/
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@Zentrik Zentrik Jan 12, 2025

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This and risc use the generic syscall table in the kernel btw

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@giordano giordano Jan 12, 2025

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I did find https://github.com/torvalds/linux/blob/b62cef9a5c673f1b8083159f5dc03c1c5daced2f/arch/arm64/tools/syscall_64.tbl (while I didn't find any symlink at all for riscv64), I was a bit hesitant to link here a generic table, but I guess that's what it is. Ok, I'll update the reference later.

Clong(241)
elseif Sys.ARCH === :arm
# See also https://github.com/torvalds/linux/blob/b62cef9a5c673f1b8083159f5dc03c1c5daced2f/arch/arm/tools/syscall.tbl
Clong(364)
elseif Sys.ARCH === :powerpc64le || Sys.ARCH === :ppc64le
# See also https://github.com/torvalds/linux/blob/b62cef9a5c673f1b8083159f5dc03c1c5daced2f/arch/powerpc/kernel/syscalls/syscall.tbl
Clong(319)
elseif Sys.ARCH === :riscv64 || Sys.ARCH === :rv64
# See also https://jborza.com/post/2021-05-11-riscv-linux-syscalls/
Clong(241)
else
Clong(-1) # sentinel for unknown syscall ID
end
Expand Down Expand Up @@ -340,16 +350,26 @@ function Base.show(io::IO, g::EventGroup)
print(io, "\t", g.event_types[end], ")")
end

# To support a new architecture, look for the code corresponding to the `prctl` syscall in
# https://gpages.juszkiewicz.com.pl/syscalls-table/syscalls.html
const SYS_prctl = if Sys.ARCH === :x86_64
# See also https://github.com/torvalds/linux/blob/b62cef9a5c673f1b8083159f5dc03c1c5daced2f/arch/x86/entry/syscalls/syscall_64.tbl
Clong(157)
elseif Sys.ARCH === :i686
# See also https://github.com/torvalds/linux/blob/b62cef9a5c673f1b8083159f5dc03c1c5daced2f/arch/x86/entry/syscalls/syscall_32.tbl
Clong(172)
elseif Sys.ARCH === :aarch64
# See also https://arm64.syscall.sh/
Clong(167)
elseif Sys.ARCH === :arm
# See also https://github.com/torvalds/linux/blob/b62cef9a5c673f1b8083159f5dc03c1c5daced2f/arch/arm/tools/syscall.tbl
Clong(172)
elseif Sys.ARCH === :powerpc64le || Sys.ARCH === :ppc64le
# See also https://github.com/torvalds/linux/blob/b62cef9a5c673f1b8083159f5dc03c1c5daced2f/arch/powerpc/kernel/syscalls/syscall.tbl
Clong(171)
elseif Sys.ARCH === :riscv64 || Sys.ARCH === :rv64
# See also https://jborza.com/post/2021-05-11-riscv-linux-syscalls/
Clong(167)
else
Clong(-1) # sentinel for unknown syscall ID
end
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