relocatable ELF objects generated by fpc (the free pascal compiler) dont seem to
play well with `strip --strip-unneeded` ... i'm wondering if this is a bug in
strip or in fpc (it not generating enough ELF information), but i think it's a
bug in strip ;)
for example, in the attached object produced by fpc, there is a global symbol
THREADVARLIST_SYSCALL which is culled after being processed with
--strip-unneeded
similar behavior can be seen with yasm/nasm when generating objects without
DWARF debug code ... for example:
$ cat test.asm
GLOBAL _foo:function
_foo:
ret;
$ yasm -f elf test.asm -o test.o
$ readelf -s test.o | grep foo
3: 00000000 0 FUNC GLOBAL DEFAULT 4 _foo
$ strip --strip-unneeded test.o
$ readelf -s test.o | grep foo
<nothing>
$ yasm -g dwarf2 -f elf test.asm -o test.o
$ readelf -s test.o | grep foo
7: 00000000 0 FUNC GLOBAL DEFAULT 4 _foo
$ strip --strip-unneeded test.o
$ readelf -s test.o | grep foo
2: 00000000 0 FUNC GLOBAL DEFAULT 1 _foo
--
Summary: --strip-unneeded strips too much with relocatable ELF
objects from fpc/nasm
Product: binutils
Version: 2.18 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: binutils
AssignedTo: unassigned at sources dot redhat dot com
ReportedBy: vapier at gentoo dot org
CC: bug-binutils at gnu dot org,toolchain at gentoo dot org
GCC host triplet: i686-linux-gnu
http://sourceware.org/bugzilla/show_bug.cgi?id=4716
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