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From: bkausbk@web.de To: gcc-gnats@gcc.gnu.org Subject: c/8661: GCC 3.2 don't produces builtin code for __builtin_alloca Date: Thu, 28 Nov 2002 16:28:00 -0000 [thread overview] Message-ID: <20021120192627.32334.qmail@sources.redhat.com> (raw) >Number: 8661 >Category: c >Synopsis: GCC 3.2 don't produces builtin code for __builtin_alloca >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: wrong-code >Submitter-Id: net >Arrival-Date: Wed Nov 20 11:36:00 PST 2002 >Closed-Date: >Last-Modified: >Originator: Benjamin Kalytta >Release: GCC 3.x >Organization: >Environment: x86 cygwin (windows 2000 prof) >Description: GCC don't produces alloca builtin function if the file is just compiled with switch "gcc -c". #define alloca(x) __builtin_alloca(x) GCC will produce an external "_alloca" symbol. I think this should be fixed. whereas gcc test.c will work and don't produces external symbol. (symbol into cygwin.dll or other libc libraries) >How-To-Repeat: gcc -c test.c >Fix: >Release-Note: >Audit-Trail: >Unformatted: ----gnatsweb-attachment---- Content-Type: text/plain; name="test.c" Content-Disposition: inline; filename="test.c" #define alloca(x) __builtin_alloca(x) unsigned int m() { void * n=alloca(16); }
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