aarch64 binaries (ARM64, ARMv8) #172
Comments
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I haven't tested aarch64 anything yet. Don't even know the syscall ABI offhand. We do have an arm64 arch backend that has no OS support yet, and it looks like the ELF loader doesn't know about aarch64 either. |
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Right, I'm aware there's just unicorn support for aarch64 at the moment, but was wondering if the transition to aarch64 would reuse much of the x86_64 Linux stuff, similar to x86 -> ARM previously. |
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Still need to wire up the kernel. |
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Okay I wired the kernel and the android static binaries aren't static at all. They rely on the android arm64 linker |
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I'll have to find a Linux aarch64 busybox binary then. Here it is: https://packages.debian.org/sid/arm64/busybox-static/download |
$ ./usercorn -trace busybox-armv8
[...]
+ block @0x50e410
0x50e410: ff4307d1 sub sp, sp, #0x1d0
0x50e414: fd7bbda9 stp x29, x30, [sp, #-0x30]!
0x50e418: fd030091 mov x29, sp
0x50e41c: a0e30191 add x0, x29, #0x78
0x50e420: f51300f9 str x21, [sp, #0x20]
0x50e424: f35301a9 stp x19, x20, [sp, #0x10]
0x50e428: 76cffb97 bl #0x402200
+ block @0x402200
0x402200: 081480d2 movz x8, #0xa0
0x402204: 010000d4 svc #0 x8 0x00000000000000a0
panic: unhandled ARM interrupt: 2
goroutine 17 [running, locked to thread]:
github.com/lunixbochs/usercorn/go/arch/arm64.LinuxInterrupt(0xaaa936e8, 0x10661960, 0x2)
/home/odroid/go/src/github.com/lunixbochs/usercorn/go/arch/arm64/linux.go:40 +0x104
github.com/lunixbochs/usercorn/go.(*Usercorn).addHooks.func5(0xaaa93628, 0x106efbf0, 0x2)
/home/odroid/go/src/github.com/lunixbochs/usercorn/go/usercorn.go:528 +0x84
github.com/unicorn-engine/unicorn/bindings/go/unicorn.hookInterrupt(0x4971f0, 0x2, 0x10890ea0)
/home/odroid/go/src/github.com/unicorn-engine/unicorn/bindings/go/unicorn/hook.go:45 +0x80
goroutine 1 [syscall, locked to thread]:
github.com/unicorn-engine/unicorn/bindings/go/unicorn._Cfunc_uc_emu_start(0x4971e0, 0x40f920, 0x0, 0xffffffff, 0xffffffff, 0x0, 0x0, 0x0, 0x0)
??:0 +0x34
github.com/unicorn-engine/unicorn/bindings/go/unicorn.(*uc).StartWithOptions(0x106efbf0, 0x40f920, 0x0, 0xffffffff, 0xffffffff, 0x1064b9ac, 0x0, 0x0)
/home/odroid/go/src/github.com/unicorn-engine/unicorn/bindings/go/unicorn/unicorn.go:91 +0x70
github.com/unicorn-engine/unicorn/bindings/go/unicorn.(*uc).Start(0x106efbf0, 0x40f920, 0x0, 0xffffffff, 0xffffffff, 0x0, 0x0)
/home/odroid/go/src/github.com/unicorn-engine/unicorn/bindings/go/unicorn/unicorn.go:96 +0x78
github.com/lunixbochs/usercorn/go.(*Usercorn).Start(0x10661960, 0x40f920, 0x0, 0xffffffff, 0xffffffff, 0x0, 0x0)
/home/odroid/go/src/github.com/lunixbochs/usercorn/go/usercorn.go:270 +0x70
github.com/lunixbochs/usercorn/go.(*Usercorn).Run(0x10661960, 0x1066e110, 0x1, 0x2, 0x106f6000, 0x54, 0x80, 0x0, 0x0)
/home/odroid/go/src/github.com/lunixbochs/usercorn/go/usercorn.go:227 +0x11b4
main.main()
/home/odroid/usercorn-unstable/go/usercorn/cli.go:172 +0x16a0 |
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syscall is at least invoked in unstable now ghostrace doesn't have arm64 syscalls so this is probably wrong :) I need to find something like |
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Yup, funny armv5-7 never needed that syscall. ( |
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The syscall seems bogus. My guess is the number table is wrong (I reused the 32-bit arm table). We need to harvest a 64-bit arm table. |
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Ok, I've got an arm64 |
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I need unistd64 with all the NR_sys_write defines, just pastebin it and I'll include in ghostrace |
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Have a look here - they don't seem to follow that naming convention. |
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asm/unistd.h should be right then |
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Wasn't the file a little short for the purpose? |
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I've converted my Cortex-A53 Android TV to Linux (remember that cool deal?) - what's the state of usercorn on aarch64? |
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Emulating aarch64 bins, or running on an aarch64 host? I don't have any good hosts to test on, and I don't remember how well guest bins run. It's likely missing the kernel bridge.
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This issue was about bins, so let's just settle down for host :) No problems there? |
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Oh yeah, still need to figure out the syscall number mapping. |
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The new platform can run 32-bit ARM binaries natively so it seems the latter can be achieved by simply running a current odroid@mxqproplus:~/usercorn-kit$ LD_LIBRARY_PATH=~/usercorn-kit/ ./usercorn busybox-x86_64 cat /proc/swaps
Filename Type Size Used Priority
/dev/zram0 partition 911924 0 5
/dev/zram1 partition 911924 0 5
/dev/zram2 partition 911924 0 5
/dev/zram3 partition 911924 0 5 |
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Which parts of the usercorn framework are still missing for native |
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Hey guys, I'm also interested in aarch64 support. |
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Is the primary interest for Linux or Android?
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@lunixbochs in my case it's Linux :) |
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@lunixbochs do you have the source code of examples from ./bins/ directory? I can compile it on Aarch64 and make a PR for easier debugging. |
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That's from my lib43 project which doesn't have aarch64 support yet (though it would be easy to add).
For basic debugging Busybox is a good start.
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So far I've only compiled simple C hello world: #include <stdio.h>
int main(int argc, char *argv[])
{
printf("Hello AArch64!\n");
return 0;
}And this is what usercorn is returning while executing that file: |
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I think the arm64 linux syscall number tables need to be tracked down |
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arm64 busybox is working in latest unstable (make sure to run |
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I've built usercorn on ARMv7 and it doesn't work for me. Are there any special requirements re: unicorn revision or is it just a 32-bit issue?
+++ caught panic +++
unhandled ARM interrupt: 1
[memory map]
[registers]
[callstack]
0x0
panic: unhandled ARM interrupt: 1 [recovered]
panic: unhandled ARM interrupt: 1
goroutine 1 [running]:
github.com/lunixbochs/usercorn/go.(*Usercorn).Run.func1(0x109b8640)
../github.com/lunixbochs/usercorn/go/usercorn.go:399 +0xc4
panic(0x366980, 0x10bba560)
../go1.8/src/runtime/panic.go:489 +0x288
github.com/lunixbochs/usercorn/go/arch/arm64.LinuxInterrupt(0x5c1b20, 0x109b8640, 0x1)
../github.com/lunixbochs/usercorn/go/arch/arm64/linux.go:48 +0xec
github.com/lunixbochs/usercorn/go.(*Usercorn).addHooks.func2(0x5bf0b8, 0x109706a0, 0x1)
../github.com/lunixbochs/usercorn/go/usercorn.go:597 +0x3c
github.com/lunixbochs/usercorn/go/cpu/unicorn.(*UnicornCpu).HookAdd.func3(0x5bf8f0, 0x109f0e80, 0x1)
../github.com/lunixbochs/usercorn/go/cpu/unicorn/unicorn.go:53 +0x38
github.com/unicorn-engine/unicorn/bindings/go/unicorn.hookInterrupt(0x5ed780, 0x1, 0x1)
../github.com/unicorn-engine/unicorn/bindings/go/unicorn/hook.go:80 +0x5c
github.com/unicorn-engine/unicorn/bindings/go/unicorn._cgoexpwrap_5df61e954c57_hookInterrupt(0x5ed780, 0x1, 0x1)
github.com/unicorn-engine/unicorn/bindings/go/unicorn/_obj/_cgo_gotypes.go:636 +0x2c
github.com/unicorn-engine/unicorn/bindings/go/unicorn._Cfunc_uc_emu_start(0x5ed780, 0x40f920, 0x0, 0xffffffff, 0xffffffff, 0x0, 0x0, 0x0, 0x0)
github.com/unicorn-engine/unicorn/bindings/go/unicorn/_obj/_cgo_gotypes.go:235 +0x38
github.com/unicorn-engine/unicorn/bindings/go/unicorn.(*uc).StartWithOptions.func1(0x5ed780, 0x40f920, 0x0, 0xffffffff, 0xffffffff, 0x0, 0x0, 0x0, 0x134d8c)
../github.com/unicorn-engine/unicorn/bindings/go/unicorn/unicorn.go:110 +0x7c
github.com/unicorn-engine/unicorn/bindings/go/unicorn.(*uc).StartWithOptions(0x109f0e80, 0x40f920, 0x0, 0xffffffff, 0xffffffff, 0x1094bca0, 0x5ed780, 0x104)
../github.com/unicorn-engine/unicorn/bindings/go/unicorn/unicorn.go:110 +0x5c
github.com/unicorn-engine/unicorn/bindings/go/unicorn.(*uc).Start(0x109f0e80, 0x40f920, 0x0, 0xffffffff, 0xffffffff, 0x0, 0x2ff718)
../github.com/unicorn-engine/unicorn/bindings/go/unicorn/unicorn.go:115 +0x60
github.com/lunixbochs/usercorn/go/cpu/unicorn.(*UnicornCpu).Start(0x109706a0, 0x40f920, 0x0, 0xffffffff, 0xffffffff, 0x40f920, 0x0)
<autogenerated>:18 +0x6c
github.com/lunixbochs/usercorn/go.(*Usercorn).Start(0x109b8640, 0x40f920, 0x0, 0xffffffff, 0xffffffff, 0x0, 0x4c)
../github.com/lunixbochs/usercorn/go/usercorn.go:511 +0x54
github.com/lunixbochs/usercorn/go.(*Usercorn).Run(0x109b8640, 0x0, 0x0)
../github.com/lunixbochs/usercorn/go/usercorn.go:455 +0x278
github.com/lunixbochs/usercorn/go/cmd.(*UsercornCmd).Run(0x1096e9f0, 0x10982040, 0x2, 0x2, 0x1095ec80, 0x4c, 0x4c, 0x0)
../github.com/lunixbochs/usercorn/go/cmd/cmd.go:426 +0x1824
main.main()
../usercorn-unstable/go/cmd/usercorn/main.go:10 +0x68All other architectures work fine. |
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are you on the latest unstable branch? any output with the -trace flag?
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Yes, latest unstable, see the attached trace log. |
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That looks like a NEON exception. I probably need to initialize the FPU
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Can you provide a link to your test binary?
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Here you are: |
So I found this aarch64 busybox binary that's identified as:
busybox_static: ELF 64-bit LSB shared object, ARM aarch64, version 1 (SYSV), dynamically linked (uses shared libs), strippedUsercorn says:
panic: Unsupported machine: EM_ALPHA_STD+142Is it an android binary or sth? Should aarch64 linux binaries work?
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