https://sourceware.org/bugzilla/show_bug.cgi?id=30137
--- Comment #3 from Pali Rohár <pali at kernel dot org> ---
Ou, my bad. I totally forgot that I wrote example for AMD64 and AMD64 does not
use relocation for indirect calls. Only 32-bit x86 needs it.
IX86 example is:
$ cat test-dynamicbase.S
.globl _main
_main:
call *__imp__external
mov $0, %eax
leave
ret
$ i686-w64-mingw32-dlltool -d external.def -l external.dll.a
$ i686-w64-mingw32-as test-dynamicbase.S -o test-dynamicbase.o
$ i686-w64-mingw32-ld --dynamicbase test-dynamicbase.o external.dll.a -o
test-dynamicbase.exe
$ i686-w64-mingw32-objdump -f -p test-dynamicbase.exe | grep -i reloc
HAS_RELOC, EXEC_P, HAS_SYMS, HAS_LOCALS, D_PAGED
Entry 5 00003000 0000000c Base Relocation Directory [.reloc]
PE File Base Relocations (interpreted .reloc section contents)
reloc 0 offset 2 [1002] HIGHLOW
reloc 1 offset 0 [1000] ABSOLUTE
$ i686-w64-mingw32-objdump -d test-dynamicbase.exe
...
401000: ff 15 30 20 40 00 call *0x402030
401006: b8 00 00 00 00 mov $0x0,%eax
40100b: c9 leave
40100c: c3 ret
...
So for IX86 relocation information with LD 2.40 is correctly generated.
When I tried those steps with LD 2.31 I got from objdump output:
relocations stripped
Entry 5 00000000 00000000 Base Relocation Directory [.reloc]
So the issue is already fixed. Sorry for the noise and wrong example (AMD64 vs
IX86).
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