https://sourceware.org/bugzilla/show_bug.cgi?id=28630
Bug ID: 28630
Summary: [mingw] bfd/coffgen.c triggers "cast to pointer from
integer of different size"
[-Werror=int-to-pointer-cast]
Product: binutils
Version: 2.38 (HEAD)
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: pexu at sourceware dot mail.kapsi.fi
Target Milestone: ---
Hi.
The following compile error happens when __INTPTR_TYPE__ is not long int (e.g.
x86_64-linux-gnu and x86_64-w64-mingw32-gcc).
/usr/local/gcc-aarch64-build/src/binutils/bfd/coffgen.c: In function
'coff_print_symbol':
/usr/local/gcc-aarch64-build/src/binutils/bfd/coffgen.c:2221:9: error: cast to
pointer from integer of different size [-Werror=int-to-pointer-cast]
2221 | (char *) auxp->u.auxent.x_file.x_n.x_n.x_offset);
| ^
binutils/bfd/coffgen.c:
2218 if (auxp->u.auxent.x_file.x_ftype)
2219 fprintf (file, "ftype %d fname \"%s\"",
2220 auxp->u.auxent.x_file.x_ftype,
2221 (char *)
auxp->u.auxent.x_file.x_n.x_n.x_offset);
A crude fix would be to do `(char *) (bfd_hostptr_t)' and it solves this issue.
However I wonder if that simply causes more troubles down the road since in
this particual example (mingw32) that involves narrowing and thus the stored
pointer might become invalid if it any of the MSBs are (silently) discarded.
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