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180 lines
6.7 KiB
Diff
180 lines
6.7 KiB
Diff
From c1ee46543002070ee83ed7836a4d7522630e313e Mon Sep 17 00:00:00 2001
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From: Andrew Eikum <aeikum@codeweavers.com>
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Date: Thu, 17 Oct 2019 11:19:45 -0500
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Subject: For PE files, copy dos_message contents from source binary
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MIME-Version: 1.0
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Content-Type: multipart/mixed; boundary="------------2.23.0"
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This is a multi-part message in MIME format.
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--------------2.23.0
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Content-Type: text/plain; charset=UTF-8; format=fixed
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Content-Transfer-Encoding: 8bit
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Wine uses a special message in this area to mark its own binaries.
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strip(1) would discard the message from the original binary and replace
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it with a hard-coded string. This would break Wine when its libraries
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are built as PE files and installed with strip(1).
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For example, see the special message in the original DLL from a Wine
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build tree, starting at offset 0x40:
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$ xxd ~/src/wine.win64/dlls/ieframe/ieframe.dll | head
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00000000: 4d5a 9000 0300 0000 0400 0000 ffff 0000 MZ..............
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00000010: b800 0000 0000 0000 4000 0000 0000 0000 ........@.......
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00000020: 0000 0000 0000 0000 0000 0000 0000 0000 ................
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00000030: 0000 0000 0000 0000 0000 0000 8000 0000 ................
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00000040: 5769 6e65 2062 7569 6c74 696e 2044 4c4c Wine builtin DLL
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00000050: 0000 0000 0000 0000 0000 0000 0000 0000 ................
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00000060: 7420 6265 2072 756e 2069 6e20 444f 5320 t be run in DOS
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00000070: 6d6f 6465 2e0d 0d0a 2400 0000 0000 0000 mode....$.......
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00000080: 5045 0000 6486 1200 58f1 9c5d 0030 3900 PE..d...X..].09.
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00000090: 6817 0000 f000 2620 0b02 0220 0030 0300 h.....& ... .0..
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And see how it is removed after stripping:
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$ strip -o /tmp/ieframe.dll ~/src/wine.win64/dlls/ieframe/ieframe.dll
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$ xxd /tmp/ieframe.dll | head
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00000000: 4d5a 9000 0300 0000 0400 0000 ffff 0000 MZ..............
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00000010: b800 0000 0000 0000 4000 0000 0000 0000 ........@.......
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00000020: 0000 0000 0000 0000 0000 0000 0000 0000 ................
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00000030: 0000 0000 0000 0000 0000 0000 8000 0000 ................
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00000040: 0e1f ba0e 00b4 09cd 21b8 014c cd21 5468 ........!..L.!Th
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00000050: 6973 2070 726f 6772 616d 2063 616e 6e6f is program canno
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00000060: 7420 6265 2072 756e 2069 6e20 444f 5320 t be run in DOS
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00000070: 6d6f 6465 2e0d 0d0a 2400 0000 0000 0000 mode....$.......
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00000080: 5045 0000 6486 0b00 0000 0000 0000 0000 PE..d...........
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00000090: 0000 0000 f000 2e22 0b02 0220 0030 0300 ......."... .0..
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This patch copies the message from the original binary into the new
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binary.
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---
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bfd/libcoff-in.h | 1 +
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bfd/libcoff.h | 1 +
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bfd/peXXigen.c | 23 +++++------------------
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bfd/peicode.h | 22 ++++++++++++++++++++++
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4 files changed, 29 insertions(+), 18 deletions(-)
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--------------2.23.0
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Content-Type: text/x-patch; name="0002-For-PE-files-copy-dos_message-contents-from-source-b.patch"
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Content-Transfer-Encoding: 8bit
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Content-Disposition: inline; filename="0002-For-PE-files-copy-dos_message-contents-from-source-b.patch"
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diff --git a/bfd/libcoff-in.h b/bfd/libcoff-in.h
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index c75c9ac595..eae5ba25c1 100644
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--- a/bfd/libcoff-in.h
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+++ b/bfd/libcoff-in.h
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@@ -128,6 +128,7 @@ typedef struct pe_tdata
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int has_reloc_section;
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int dont_strip_reloc;
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bfd_boolean insert_timestamp;
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+ int dos_message[16];
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bfd_boolean (*in_reloc_p) (bfd *, reloc_howto_type *);
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flagword real_flags;
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diff --git a/bfd/libcoff.h b/bfd/libcoff.h
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index d0e3d0dd90..5ee6632776 100644
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--- a/bfd/libcoff.h
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+++ b/bfd/libcoff.h
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@@ -132,6 +132,7 @@ typedef struct pe_tdata
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int has_reloc_section;
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int dont_strip_reloc;
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bfd_boolean insert_timestamp;
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+ int dos_message[16];
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bfd_boolean (*in_reloc_p) (bfd *, reloc_howto_type *);
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flagword real_flags;
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diff --git a/bfd/peXXigen.c b/bfd/peXXigen.c
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index e6d1425472..b437cb55f8 100644
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--- a/bfd/peXXigen.c
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+++ b/bfd/peXXigen.c
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@@ -854,24 +854,9 @@ _bfd_XXi_only_swap_filehdr_out (bfd * abfd, void * in, void * out)
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filehdr_in->pe.e_lfanew = 0x80;
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- /* This next collection of data are mostly just characters. It
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- appears to be constant within the headers put on NT exes. */
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- filehdr_in->pe.dos_message[0] = 0x0eba1f0e;
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- filehdr_in->pe.dos_message[1] = 0xcd09b400;
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- filehdr_in->pe.dos_message[2] = 0x4c01b821;
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- filehdr_in->pe.dos_message[3] = 0x685421cd;
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- filehdr_in->pe.dos_message[4] = 0x70207369;
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- filehdr_in->pe.dos_message[5] = 0x72676f72;
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- filehdr_in->pe.dos_message[6] = 0x63206d61;
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- filehdr_in->pe.dos_message[7] = 0x6f6e6e61;
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- filehdr_in->pe.dos_message[8] = 0x65622074;
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- filehdr_in->pe.dos_message[9] = 0x6e757220;
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- filehdr_in->pe.dos_message[10] = 0x206e6920;
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- filehdr_in->pe.dos_message[11] = 0x20534f44;
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- filehdr_in->pe.dos_message[12] = 0x65646f6d;
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- filehdr_in->pe.dos_message[13] = 0x0a0d0d2e;
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- filehdr_in->pe.dos_message[14] = 0x24;
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- filehdr_in->pe.dos_message[15] = 0x0;
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+ memcpy (filehdr_in->pe.dos_message, pe_data (abfd)->dos_message,
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+ sizeof (filehdr_in->pe.dos_message));
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+
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filehdr_in->pe.nt_signature = IMAGE_NT_SIGNATURE;
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H_PUT_16 (abfd, filehdr_in->f_magic, filehdr_out->f_magic);
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@@ -2970,6 +2955,8 @@ _bfd_XX_bfd_copy_private_bfd_data_common (bfd * ibfd, bfd * obfd)
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&& ! (pe_data (ibfd)->real_flags & IMAGE_FILE_RELOCS_STRIPPED))
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pe_data (obfd)->dont_strip_reloc = 1;
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+ memcpy (ope->dos_message, ipe->dos_message, sizeof (ope->dos_message));
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+
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/* The file offsets contained in the debug directory need rewriting. */
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if (ope->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size != 0)
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{
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diff --git a/bfd/peicode.h b/bfd/peicode.h
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index 2a564fec98..38eb2f1eaf 100644
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--- a/bfd/peicode.h
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+++ b/bfd/peicode.h
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@@ -271,6 +271,24 @@ pe_mkobject (bfd * abfd)
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/* in_reloc_p is architecture dependent. */
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pe->in_reloc_p = in_reloc_p;
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+ /* default dos message string */
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+ pe->dos_message[0] = 0x0eba1f0e;
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+ pe->dos_message[1] = 0xcd09b400;
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+ pe->dos_message[2] = 0x4c01b821;
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+ pe->dos_message[3] = 0x685421cd;
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+ pe->dos_message[4] = 0x70207369;
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+ pe->dos_message[5] = 0x72676f72;
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+ pe->dos_message[6] = 0x63206d61;
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+ pe->dos_message[7] = 0x6f6e6e61;
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+ pe->dos_message[8] = 0x65622074;
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+ pe->dos_message[9] = 0x6e757220;
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+ pe->dos_message[10] = 0x206e6920;
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+ pe->dos_message[11] = 0x20534f44;
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+ pe->dos_message[12] = 0x65646f6d;
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+ pe->dos_message[13] = 0x0a0d0d2e;
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+ pe->dos_message[14] = 0x24;
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+ pe->dos_message[15] = 0x0;
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+
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memset (& pe->pe_opthdr, 0, sizeof pe->pe_opthdr);
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return TRUE;
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}
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@@ -325,6 +343,8 @@ pe_mkobject_hook (bfd * abfd,
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coff_data (abfd) ->flags = 0;
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#endif
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+ memcpy (pe->dos_message, internal_f->pe.dos_message, sizeof (pe->dos_message));
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+
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return (void *) pe;
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}
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@@ -1456,6 +1476,8 @@ pe_bfd_object_p (bfd * abfd)
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return NULL;
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}
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+ memcpy (internal_f.pe.dos_message, dos_hdr.dos_message, sizeof (internal_f.pe.dos_message));
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+
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/* Read the optional header, which has variable size. */
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opt_hdr_size = internal_f.f_opthdr;
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--------------2.23.0--
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