Compiling this source causes an ICE on the call to (*f)(3). Preprocessed
source in an attachment, non-preprocessed source below. The ICE doesn't happen
if "f" is assigned to a user function poiner. The segmentation fault happens
on either Linux (4.0.3 20051201 Debian prerelease) or Mac OS X (4.0.0 Apple
build), and I couldn't find a bugzilla bug for it.
Source:
#include <stdlib.h>
void *(* const f)(size_t) = malloc;
void *gg(void) {
return (*f)(3);
}
Output of "gcc -v -save-temps -c x.c":
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v
--enable-languages=c,c++,java,f95,objc,ada,treelang --prefix=/usr
--enable-shared --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix --enable-nls
--program-suffix=-4.0 --enable-__cxa_atexit --enable-clocale=gnu
--enable-libstdcxx-debug --enable-java-awt=gtk-default --enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.0-1.4.2.0/jre --enable-mpfr
--disable-werror --enable-checking=release i486-linux-gnu
Thread model: posix
gcc version 4.0.3 20051201 (prerelease) (Debian 4.0.2-5)
/usr/lib/gcc/i486-linux-gnu/4.0.3/cc1 -E -quiet -v x.c -mtune=i486
-fpch-preprocess -o x.i
ignoring nonexistent directory "/usr/local/include/i486-linux-gnu"
ignoring nonexistent directory "/usr/include/i486-linux-gnu"
#include "..." search starts here:
#include <...> search starts here:
/usr/local/include
/usr/lib/gcc/i486-linux-gnu/4.0.3/include
/usr/include
End of search list.
/usr/lib/gcc/i486-linux-gnu/4.0.3/cc1 -fpreprocessed x.i -quiet -dumpbase x.c
-mtune=i486 -auxbase x -version -o x.s
GNU C version 4.0.3 20051201 (prerelease) (Debian 4.0.2-5) (i486-linux-gnu)
compiled by GNU C version 4.0.3 20051201 (prerelease) (Debian 4.0.2-5).
GGC heuristics: --param ggc-min-expand=90 --param ggc-min-heapsize=113175
x.c: In function 'gg':
x.c:6: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
For Debian GNU/Linux specific bug reporting instructions,
see <URL:file:///usr/share/doc/gcc-4.0/README.Bugs>.
--
Summary: ICE on const function pointer assigned to malloc
Product: gcc
Version: 4.0.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kohler at cs dot ucla dot edu
GCC build triplet: i486-linux-gnu
GCC host triplet: i486-linux-gnu
GCC target triplet: i486-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26092
