Your message dated Tue, 7 Jan 2025 11:32:45 +0800
with message-id <[email protected]>
and subject line nix already build successed on loong64
has caused the Debian Bug report #1087607,
regarding nix: error "Missing support for fchmodat2"
to be marked as done.
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Bug report if necessary, and/or fix the problem forthwith.
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--
1087607: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1087607
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--- Begin Message ---
Source: nix
Version: 2.24.9+dfsg-2
Severity: normal
Tags: sid
User: [email protected]
Usertags: loong64
Dear maintainers,
Compiling the hardinfo failed for loong64 in the Debian Package
Auto-Building environment.
The build error log is as follows,
```
conftest.c:35:13: error: #error "Missing support for fchmodat2"
35 | # error "Missing support for fchmodat2"
| ^~~~~
......
| #include <seccomp.h>
| #ifndef __SNR_fchmodat2
| # error "Missing support for fchmodat2"
| #endif
```
nix 2.18.1+dfsg-1 was built successfully on loong64 Buildds.
But after version 2.18.1+dfsg-1, there are 10 times failure.
The full log can be found at
https://buildd.debian.org/status/fetch.php?pkg=nix&arch=loong64&ver=2.24.9%2Bdfsg-2&stamp=1731490304&raw=0.
After investigation, I found that fchmodat2 syscall is supported in
libseccomp 2.5.5-2 version.
Due to my local ENV's libseccomp version is 2.5.5-2, So I provide some
logs:
```
loongson@localhost:~/nix-2.24.9+dfsg$ grep "fchmodat2" -ri /usr/include/
/usr/include/seccomp-syscalls.h:#define __SNR_fchmodat2 __NR_fchmodat2
/usr/include/asm-generic/unistd.h:#define __NR_fchmodat2 452
/usr/include/asm-generic/unistd.h:__SYSCALL(__NR_fchmodat2, sys_fchmodat2)
/usr/include/loongarch64-linux-gnu/bits/syscall.h:#ifdef __NR_fchmodat2
/usr/include/loongarch64-linux-gnu/bits/syscall.h:# define SYS_fchmodat2
__NR_fchmodat2
loongson@localhost:~/nix-2.24.9+dfsg$ dpkg -S
/usr/include/seccomp-syscalls.h
libseccomp-dev:loong64: /usr/include/seccomp-syscalls.h
loongson@localhost:~/nix-2.24.9+dfsg$ dpkg -l |grep libseccomp-dev
ii libseccomp-dev:loong64 2.5.5-2
......
```
Now loong64's libseccomp version is 2.5.4-1 unreleased
version(http://ftp.ports.debian.org/debian-ports/pool-loong64/main/libs/libseccomp/).
Please pay attention to the above phenomenon.
Best regards,
Dandan Zhang
--- End Message ---
--- Begin Message ---
Version: 2.24.9+dfsg-2
Hi,
nix already build successed on loong64, so close this bug.
https://buildd.debian.org/status/fetch.php?pkg=nix&arch=loong64&ver=2.24.9%2Bdfsg-2&stamp=1735323285&raw=0
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