[Bug 259] New: Exceptions cannot pass through uClibc functions
bugzilla at busybox.net
bugzilla at busybox.net
Tue Mar 31 06:16:55 UTC 2009
https://bugs.busybox.net/show_bug.cgi?id=259
Host: i386-pc-linux-uclibc
Target: i386-pc-linux-uclibc
Build: i386-pc-linux-uclibc
Summary: Exceptions cannot pass through uClibc functions
Product: uClibc
Version: 0.9.30.1
Platform: PC
OS/Version: Linux
Status: NEW
Severity: minor
Priority: P5
Component: Other
AssignedTo: unassigned at uclibc.org
ReportedBy: michael at talamasca.ocis.net
CC: uclibc-cvs at uclibc.org
Estimated Hours: 0.0
Created an attachment (id=221)
--> (https://bugs.busybox.net/attachment.cgi?id=221)
Test program
The attached test program works (exits with 0 returncode) on glibc, but aborts
on uClibc.
The problem is that the bsort module of uClibc is not compiled with
"-fexceptions", thus stack unwinding through it fails.
Compiling every relevant module with "-fexceptions" would bloat uClibc
somewhat, especially on a threaded build where the many "cancellation point"
functions would require this treatment.
However, uClibc's headers, like glibc's, make sure not to declare __attribute
((nothrow)) on the relevant functions, which suggests that pass-through is
supposed to work.
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