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daemon: Allow building for armhf-linux on aarch64-linux.

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* nix/libstore/build.cc (canBuildLocally): Allow building armhf-linux
builds on aarch64-linux.
(DerivationGoal::runChild) Throw error if attempting to build for
armhf-linux on an unsupported platform.
* doc/guix.texi (Invoking guix build): Document how to build natively
for armhf-linux on aarch64-linux.  Add note that on some aarch64
machines this is unsupported.
This commit is contained in:
Efraim Flashner
2018-05-16 15:05:49 +03:00
parent 17aca5c4d2
commit 162825f965
2 changed files with 16 additions and 1 deletions
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nix/libstore/build.cc
+8
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@@ -1244,6 +1244,7 @@ static bool canBuildLocally(const string & platform)
return platform == settings.thisSystem
#if __linux__
|| (platform == "i686-linux" && settings.thisSystem == "x86_64-linux")
|| (platform == "armhf-linux" && settings.thisSystem == "aarch64-linux")
#endif
;
}
@@ -2220,6 +2221,13 @@ void DerivationGoal::runChild()
throw SysError("cannot set i686-linux personality");
}
if (drv.platform == "armhf-linux" &&
(settings.thisSystem == "aarch64-linux" ||
(!strcmp(utsbuf.sysname, "Linux") && !strcmp(utsbuf.machine, "aarch64")))) {
if (personality(PER_LINUX32) == -1)
throw SysError("cannot set armhf-linux personality");
}
/* Impersonate a Linux 2.6 machine to get some determinism in
builds that depend on the kernel version. */
if ((drv.platform == "i686-linux" || drv.platform == "x86_64-linux") && settings.impersonateLinux26) {