diff options
author | Artemis Tosini <lix@artem.ist> | 2024-05-12 21:09:26 +0000 |
---|---|---|
committer | jade <lix@jade.fyi> | 2024-06-23 03:33:07 +0000 |
commit | 12f5d27363316df8e04af1e2e376c39588e12057 (patch) | |
tree | 2605bc59d499c851f169678701e9827db180e366 /src/libstore/platform/darwin.cc | |
parent | da4e46dd1fc04067b5ba4bc16dd68134fa7efad2 (diff) |
libstore: Start creating LocalDerivationGoal subclasses
LocalDerivationGoal includes a large number of low-level sandboxing
primitives for Darwin and Linux, intermingled with ifdefs.
Start creating platform-specific classes to make it easier to add new
platforms and review platform-specific code.
This change only creates support infrastructure and moves two function,
more functions will be moved in future changes.
Change-Id: I9fc29fa2a7345107d4fc96c46fa90b4eabf6bb89
Diffstat (limited to 'src/libstore/platform/darwin.cc')
-rw-r--r-- | src/libstore/platform/darwin.cc | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/libstore/platform/darwin.cc b/src/libstore/platform/darwin.cc index bbb81784c..83b4b4183 100644 --- a/src/libstore/platform/darwin.cc +++ b/src/libstore/platform/darwin.cc @@ -6,6 +6,7 @@ #include <sys/proc_info.h> #include <sys/sysctl.h> #include <libproc.h> +#include <spawn.h> #include <regex> @@ -220,4 +221,29 @@ void DarwinLocalStore::findPlatformRoots(UncheckedRoots & unchecked) } } } + +void DarwinLocalDerivationGoal::execBuilder(std::string builder, Strings args, Strings envStrs) +{ + posix_spawnattr_t attrp; + + if (posix_spawnattr_init(&attrp)) + throw SysError("failed to initialize builder"); + + if (posix_spawnattr_setflags(&attrp, POSIX_SPAWN_SETEXEC)) + throw SysError("failed to initialize builder"); + + if (drv->platform == "aarch64-darwin") { + // Unset kern.curproc_arch_affinity so we can escape Rosetta + int affinity = 0; + sysctlbyname("kern.curproc_arch_affinity", NULL, NULL, &affinity, sizeof(affinity)); + + cpu_type_t cpu = CPU_TYPE_ARM64; + posix_spawnattr_setbinpref_np(&attrp, 1, &cpu, NULL); + } else if (drv->platform == "x86_64-darwin") { + cpu_type_t cpu = CPU_TYPE_X86_64; + posix_spawnattr_setbinpref_np(&attrp, 1, &cpu, NULL); + } + + posix_spawn(NULL, builder.c_str(), NULL, &attrp, stringsToCharPtrs(args).data(), stringsToCharPtrs(envStrs).data()); +} } |