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authorDavid Thompson <dthompson2@worcester.edu>2015-09-05 13:36:53 -0400
committerDavid Thompson <dthompson2@worcester.edu>2015-09-05 13:42:02 -0400
commitcf897cbacc3ddcf5d5d553ee19002995985fff11 (patch)
tree8deca6bd9b81b35b9f1ea201f7a46284b6a30b74
parentb7d0b096b063eccb51f01efeaa0eeb06561c2e84 (diff)
downloadguix-cf897cbacc3ddcf5d5d553ee19002995985fff11.tar.gz
guix-cf897cbacc3ddcf5d5d553ee19002995985fff11.zip
build: syscalls: Properly handle clone errors.
* guix/build/syscalls.scm (clone): Catch -1 return value and throw error.
-rw-r--r--guix/build/syscalls.scm8
1 files changed, 7 insertions, 1 deletions
diff --git a/guix/build/syscalls.scm b/guix/build/syscalls.scm
index fc801a5e9d..093eb0a1a0 100644
--- a/guix/build/syscalls.scm
+++ b/guix/build/syscalls.scm
@@ -325,7 +325,13 @@ 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