diff options
Diffstat (limited to 'guix/build/syscalls.scm')
| -rw-r--r-- | guix/build/syscalls.scm | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/guix/build/syscalls.scm b/guix/build/syscalls.scm index fc801a5e9d..2c2fbde0a3 100644 --- a/guix/build/syscalls.scm +++ b/guix/build/syscalls.scm @@ -50,6 +50,8 @@ mkdtemp! pivot-root + CLONE_CHILD_CLEARTID + CLONE_CHILD_SETTID CLONE_NEWNS CLONE_NEWUTS CLONE_NEWIPC @@ -303,12 +305,14 @@ string TMPL and return its file name. TMPL must end with 'XXXXXX'." (pointer->string result))))) ;; Linux clone flags, from linux/sched.h -(define CLONE_NEWNS #x00020000) -(define CLONE_NEWUTS #x04000000) -(define CLONE_NEWIPC #x08000000) -(define CLONE_NEWUSER #x10000000) -(define CLONE_NEWPID #x20000000) -(define CLONE_NEWNET #x40000000) +(define CLONE_CHILD_CLEARTID #x00200000) +(define CLONE_CHILD_SETTID #x01000000) +(define CLONE_NEWNS #x00020000) +(define CLONE_NEWUTS #x04000000) +(define CLONE_NEWIPC #x08000000) +(define CLONE_NEWUSER #x10000000) +(define CLONE_NEWPID #x20000000) +(define CLONE_NEWNET #x40000000) ;; The libc interface to sys_clone is not useful for Scheme programs, so the ;; low-level system call is wrapped instead. @@ -325,7 +329,13 @@ string TMPL and return its file name. TMPL must end with 'XXXXXX'." "Create a new child process by duplicating the current parent process. Unlike the fork system call, clone accepts FLAGS that specify which resources are shared between the parent and child processes." - (proc syscall-id flags %null-pointer)))) + (let ((ret (proc syscall-id flags %null-pointer)) + (err (errno))) + (if (= ret -1) + (throw 'system-error "clone" "~d: ~A" + (list flags (strerror err)) + (list err)) + ret))))) (define setns ;; Some systems may be using an old (pre-2.14) version of glibc where there |