https://sourceware.org/bugzilla/show_bug.cgi?id=30359
Bug ID: 30359
Summary: Create Resource-Only DLL
Product: binutils
Version: 2.39
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: pali at kernel dot org
Target Milestone: ---
Resource-Only DLL is windows PE binary of DLL type which does not contain any
code, just resources in .rsrc section. See MS documentation for more details:
https://learn.microsoft.com/en-us/cpp/build/creating-a-resource-only-dll
To create Resource-Only TEST-RSRC.DLL library from text resource file
TEST-RSRC.RC (compiled to intermediate binary TEST-RSRC.RES) it is possible to
use MS tools (as documented in above link):
RC.EXE TEST-RSRC.RC
LINK.EXE /DLL /NOENTRY TEST-RSRC.RES
Entrypoint of such library is set to zero.
I'm trying to achieve same thing via binutils, but even with stripped debug
symbols and zero entry point, LD somehow always puts .idata and .text sections
with empty import table and something in code .text sections.
Test case:
$ cat test-rsrc.rc
1 VERSIONINFO
BEGIN
END
$ i686-w64-mingw32-windres --input-format=rc --output-format=coff
--input=test-rsrc.rc --output=test-rsrc.o
$ i686-w64-mingw32-ld -dll --subsystem windows -e 0 -s test-rsrc.o -o
test-rsrc.dll
$ i686-w64-mingw32-objdump -h test-rsrc.dll
test-rsrc.dll: file format pei-i386
Sections:
Idx Name Size VMA LMA File off Algn
0 .text 00000010 10001000 10001000 00000400 2**2
CONTENTS, ALLOC, LOAD, READONLY, CODE
1 .idata 00000014 10002000 10002000 00000600 2**2
CONTENTS, ALLOC, LOAD, DATA
2 .rsrc 000000b8 10003000 10003000 00000800 2**2
CONTENTS, ALLOC, LOAD, DATA
Is there some other flag for LD to achieve generation of resource-only DLL
library? Or how to avoid putting (empty) .text and .idata sections into such
DLL library?
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