Loader could not find fstat
#923
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When running in fully emulated mode, it crashes with SIGSEGV And the similar issue with symbol loading when running in prefer-emulated mode: Note that I don't use bundled |
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I figured out how to add wrapping symbols to libc. @ptitSeb, do I understand correctly that right now the linker does not respect symvers for wrapped libraries, that's why there are checks for glibc version? I see the version checks in the loader itself (for emulated libraries), but not in the wrappers. |
There is some limited support for |
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So, right now I've just uncommented these box86/src/wrapped/wrappedlibc_private.h Lines 2268 to 2273 in 027605e Not sure how to fix this properly as this apparently would break Steam userspace you're targeting. These symbols were wrapped via |
A |
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getting this error trying to run bash with > export LD_LIBRARY_PATH="$(for lib in ncurses glibc; do nix-build '<nixpkgs>' -A pkgsCross.armv7l-hf-multiplatform.${lib} --no-out-link; done | xargs -I {} echo -n {}/lib: | sed 's/:$//')"
> box86 /nix/store/3c54hwp1zji0h8yl66860cp8zp2vsrzv-bash-5.2p26/bin/bash 16:21:41
Box86 with Dynarec v0.3.6 nogit built on Jan 1 1980 00:00:00
Error: PltResolver: Symbol __isoc23_strtoimax(ver 10: __isoc23_strtoimax@GLIBC_2.38) not found, cannot apply R_386_JMP_SLOT 0x813ec88 (0x805d2e6) in /nix/store/3c54hwp1zji0h8yl66860cp8zp2vsrzv-bash-5.2p26/bin/bash
> BOX86_DLSYM_ERROR=1 BOX86_LOG=1 BOX86_PREFER_EMULATED=1 BOX86_EMULATED_LIBS=libc.so.6 BOX86_DYNAREC=0 BOX86_SHOWSEGV=1 BOX86_SHOWBT=1 box86 /nix/store/3c54hwp1zji0h8yl66860cp8zp2vsrzv-bash-5.2p26/bin/bash
Debug level is 1
Dynarec is off
Shows details of dlopen / dlsym /dlclose : Yes
Show Segfault signal even if a signal handler is present
Show Backtrace for signals
Running on Neoverse-N1 with 4 Cores
Box86 with Dynarec v0.3.6 nogit built on Jan 1 1980 00:00:00
Using default BOX86_LD_LIBRARY_PATH: ./:lib/:lib32/:x86/:i686/
BOX86 will force the used of emulated libs for libc.so.6
Using default BOX86_PATH: ./:bin/
BOX86: Prefer Emulated libs
Counted 107 Env var
Looking for /nix/store/3c54hwp1zji0h8yl66860cp8zp2vsrzv-bash-5.2p26/bin/bash
bash detected, disabling banner
Rename process to "bash"
Using native(wrapped) libdl.so.2
Using emulated /nix/store/756q2acnjgi6ym709gw1f3jp0ciqwib1-glibc-2.39-52/lib/libc.so.6
Redirecting overridden malloc function for /nix/store/756q2acnjgi6ym709gw1f3jp0ciqwib1-glibc-2.39-52/lib/libc.so.6
Using emulated /nix/store/756q2acnjgi6ym709gw1f3jp0ciqwib1-glibc-2.39-52/lib/ld-linux.so.2
Warning, don't know of to handle rel #2 type: 0x2a (unknown) (0x60432b00) for
Warning, don't know of to handle rel #91 type: 0x2a (unknown) (0x60227c74) for
Warning, don't know of to handle rel #19 type: 0x2a (unknown) (0x60227e74) for
Warning, don't know of to handle rel #20 type: 0x2a (unknown) (0x60227e6c) for
Warning, don't know of to handle rel #21 type: 0x2a (unknown) (0x60227e64) for
Warning, don't know of to handle rel #22 type: 0x2a (unknown) (0x60227e58) for
Warning, don't know of to handle rel #23 type: 0x2a (unknown) (0x60227e34) for
Warning, don't know of to handle rel #24 type: 0x2a (unknown) (0x60227e30) for
Warning, don't know of to handle rel #25 type: 0x2a (unknown) (0x60227e24) for
1531240|SIGSEGV @0x62aace58 (???(/nix/store/3c54hwp1zji0h8yl66860cp8zp2vsrzv-bash-5.2p26/bin/bash/0x62aace58)) (x86pc=0x24ab0/???:"???", esp=0x41a601fc, stack=0x41269000:0x41a69000 own=(nil) fp=(nil)), for accessing 0x24ab0 (code=1/prot=0), db=(nil)((nil):(nil)/(nil):(nil)/???:clean, hash:0/0)
ESP-0x10:0x00000000 ESP-0x0c:0x00000000 ESP-0x08:0x00000000 ESP-0x04:0x00000000
ESP+0x00:0x40a70010 ESP+0x04:0x00000001 ESP+0x08:0x41a60210 ESP+0x0c:0x41a60218
Native bactrace:
/nix/store/3c54hwp1zji0h8yl66860cp8zp2vsrzv-bash-5.2p26/bin/bash() [0x628fb2a4]
/nix/store/176g0h9j5vmkil0k8zb5h4a8iac06qcb-glibc-armv7l-unknown-linux-gnueabihf-2.39-52/lib/libc.so.6(__default_rt_sa_restorer+0) [0x40866cb0]
/nix/store/3c54hwp1zji0h8yl66860cp8zp2vsrzv-bash-5.2p26/bin/bash() [0x62aace58]
/nix/store/3c54hwp1zji0h8yl66860cp8zp2vsrzv-bash-5.2p26/bin/bash() [0x629057f8]
/nix/store/3c54hwp1zji0h8yl66860cp8zp2vsrzv-bash-5.2p26/bin/bash() [0x629059c8]
/nix/store/3c54hwp1zji0h8yl66860cp8zp2vsrzv-bash-5.2p26/bin/bash() [0x6282eed0]
/nix/store/3c54hwp1zji0h8yl66860cp8zp2vsrzv-bash-5.2p26/bin/bash() [0x628d1ce8]
/nix/store/3c54hwp1zji0h8yl66860cp8zp2vsrzv-bash-5.2p26/bin/bash() [0x628d1eb0]
/nix/store/3c54hwp1zji0h8yl66860cp8zp2vsrzv-bash-5.2p26/bin/bash() [0x6281c5dc]
/nix/store/176g0h9j5vmkil0k8zb5h4a8iac06qcb-glibc-armv7l-unknown-linux-gnueabihf-2.39-52/lib/libc.so.6(+0x238cc) [0x4084f8cc]
/nix/store/176g0h9j5vmkil0k8zb5h4a8iac06qcb-glibc-armv7l-unknown-linux-gnueabihf-2.39-52/lib/libc.so.6(__libc_start_main+0x98) [0x4084f9c0]
1531240|Double SIGSEGV (code=1, pc=0x62aace58, addr=0x24ab0)!Using a glibc version older than |
This is a completly different issue: it's the relocation type "0x2a" that is not handled by box86. This need to be in a new ticket, not here. |
Ok, thanks, I'll make a new ticket then, but you said it is not handled by box86, I'm trying to test the package for nixOS, is it possible that it's a problem on the packaging then? |
Nope. It's a box86 iisue. Well, I guess the bash you have is built on NixOS itself and is fairly recent, compared to the one in the box86 repo.... |
yeah, using the one in the repo would require a bunch of patching to work in a system like nixOS where libraries are never where programs usually expect them to be :v, I'll open another issue and maybe try to play around with the bash versioning a bit, if I figure anything out I'll put it there, thanks a lot 🙏 EDIT: made a new issue, also tried running with bash version > export LD_LIBRARY_PATH="$(for lib in ncurses glibc; do nix-build '<nixpkgs>' -A pkgsCross.armv7l-hf-multiplatform.${lib} --no-out-link; done | xargs -I {} echo -n {}/lib: | sed 's/:$//')"
> echo $LD_LIBRARY_PATH 18:26:24
/nix/store/74gp2wabmv0cqwhpsjmglpzlwvyvd2r5-ncurses-armv7l-unknown-linux-gnueabihf-6.4/lib:/nix/store/176g0h9j5vmkil0k8zb5h4a8iac06qcb-glibc-armv7l-unknown-linux-gnueabihf-2.39-52/lib
> box86 /nix/store/9cf3kcqal0v4sj78kmfkdkplpifs1piv-bash-5.1-p16/bin/bash 18:33:59
Box86 with Dynarec v0.3.6 nogit built on Jan 1 1980 00:00:00
# (exits with bash error code 255)
> BOX86_DLSYM_ERROR=1 BOX86_LOG=1 BOX86_PREFER_EMULATED=1 BOX86_EMULATED_LIBS=libc.so.6 BOX86_DYNAREC=0 BOX86_SHOWSEGV=1 BOX86_SHOWBT=1 box86 /nix/store/9cf3kcqal0v4sj78kmfkdkplpifs1piv-bash-5.1-p16/bin/bash
Debug level is 1
Dynarec is off
Shows details of dlopen / dlsym /dlclose : Yes
Show Segfault signal even if a signal handler is present
Show Backtrace for signals
Running on Neoverse-N1 with 4 Cores
Box86 with Dynarec v0.3.6 nogit built on Jan 1 1980 00:00:00
Using default BOX86_LD_LIBRARY_PATH: ./:lib/:lib32/:x86/:i686/
BOX86 will force the used of emulated libs for libc.so.6
Using default BOX86_PATH: ./:bin/
BOX86: Prefer Emulated libs
Counted 107 Env var
Looking for /nix/store/9cf3kcqal0v4sj78kmfkdkplpifs1piv-bash-5.1-p16/bin/bash
bash detected, disabling banner
Rename process to "bash"
Redirecting overridden malloc function for /nix/store/9cf3kcqal0v4sj78kmfkdkplpifs1piv-bash-5.1-p16/bin/bash
Using native(wrapped) libdl.so.2
Using emulated /nix/store/0wr8hawrkjxp9bygcdisdg4kj2irqqyb-glibc-2.35-163/lib/libc.so.6
Redirecting overridden malloc function for /nix/store/0wr8hawrkjxp9bygcdisdg4kj2irqqyb-glibc-2.35-163/lib/libc.so.6
Using emulated /nix/store/0wr8hawrkjxp9bygcdisdg4kj2irqqyb-glibc-2.35-163/lib/ld-linux.so.2
Warning, don't know of to handle rel #145 type: 0x2a (unknown) (0x60436b18) for
Warning, don't know of to handle rel #1356 type: 0x2a (unknown) (0x60221cb4) for
Warning, don't know of to handle rel #17 type: 0x2a (unknown) (0x60221e8c) for
Warning, don't know of to handle rel #18 type: 0x2a (unknown) (0x60221e64) for
Warning, don't know of to handle rel #19 type: 0x2a (unknown) (0x60221e5c) for
Warning, don't know of to handle rel #20 type: 0x2a (unknown) (0x60221e4c) for
1708800|SIGSEGV @0x62aae070 (???(/nix/store/9cf3kcqal0v4sj78kmfkdkplpifs1piv-bash-5.1-p16/bin/bash/0x62aae070)) (x86pc=0x600213dc//nix/store/0wr8hawrkjxp9bygcdisdg4kj2irqqyb-glibc-2.35-163/lib/libc.so.6:"???", esp=0x41a601c0, stack=0x41269000:0x41a69000 own=(nil) fp=(nil)), for accessing 0x50 (code=1/prot=0), db=(nil)((nil):(nil)/(nil):(nil)/???:clean, hash:0/0)
ESP-0x10:0x40a70010 ESP-0x0c:0x00000000 ESP-0x08:0x00000000 ESP-0x04:0x00000000
ESP+0x00:0x00000000 ESP+0x04:0x00000000 ESP+0x08:0x00000000 ESP+0x0c:0x00000000
Native bactrace:
/nix/store/9cf3kcqal0v4sj78kmfkdkplpifs1piv-bash-5.1-p16/bin/bash() [0x628fb2a4]
/nix/store/176g0h9j5vmkil0k8zb5h4a8iac06qcb-glibc-armv7l-unknown-linux-gnueabihf-2.39-52/lib/libc.so.6(__default_rt_sa_restorer+0) [0x40866cb0]
/nix/store/9cf3kcqal0v4sj78kmfkdkplpifs1piv-bash-5.1-p16/bin/bash() [0x62aae070]
/nix/store/9cf3kcqal0v4sj78kmfkdkplpifs1piv-bash-5.1-p16/bin/bash() [0x629057f8]
/nix/store/9cf3kcqal0v4sj78kmfkdkplpifs1piv-bash-5.1-p16/bin/bash() [0x6281c68c]
/nix/store/176g0h9j5vmkil0k8zb5h4a8iac06qcb-glibc-armv7l-unknown-linux-gnueabihf-2.39-52/lib/libc.so.6(+0x238cc) [0x4084f8cc]
/nix/store/176g0h9j5vmkil0k8zb5h4a8iac06qcb-glibc-armv7l-unknown-linux-gnueabihf-2.39-52/lib/libc.so.6(__libc_start_main+0x98) [0x4084f9c0]
1708800|Double SIGSEGV (code=1, pc=0x62aae070, addr=0x50)! |
Trying to study the code to understand why
fstatsymbol could not be found in the wrapped libc. It seems to be wrapped, and wrapper generator complains if I explicitly add the definition as under#ifdef ANDROIDinsrc/wrapped/wrappedlibc_private.h, but it still complains.Do I understand correctly that the wrappers were written to a specific base userspace libraries (Steam's Ubuntu I guess?) and won't work if the library such as libc gets updated?
I'm running Debian 12 armhf with i386 libraries (also Debian 12, glibc 2.36-9+deb12u3).
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