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[PATCH v6 3/3] mkimage: Clarify file alignment in efi case


From: Alexander Graf
Subject: [PATCH v6 3/3] mkimage: Clarify file alignment in efi case
Date: Mon, 28 Jan 2019 14:35:29 +0100

There are a few spots in the PE generation code for EFI binaries that uses
the section alignment rather than file alignment, even though the alignment
is really only file bound.

Replace those cases with the file alignment constant instead.

Reported-by: Daniel Kiper <address@hidden>
Signed-off-by: Alexander Graf <address@hidden>

---

v5 -> v6:

  - Change EFIxxHEADER_SIZE macros too
---
 util/mkimage.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/util/mkimage.c b/util/mkimage.c
index 16af12e0c..cf1a47c94 100644
--- a/util/mkimage.c
+++ b/util/mkimage.c
@@ -66,14 +66,14 @@
                                    + sizeof (struct grub_pe32_coff_header) \
                                    + sizeof (struct grub_pe32_optional_header) 
\
                                    + 4 * sizeof (struct 
grub_pe32_section_table), \
-                                   GRUB_PE32_SECTION_ALIGNMENT)
+                                   GRUB_PE32_FILE_ALIGNMENT)
 
 #define EFI64_HEADER_SIZE ALIGN_UP (GRUB_PE32_MSDOS_STUB_SIZE          \
                                    + GRUB_PE32_SIGNATURE_SIZE          \
                                    + sizeof (struct grub_pe32_coff_header) \
                                    + sizeof (struct grub_pe64_optional_header) 
\
                                    + 4 * sizeof (struct 
grub_pe32_section_table), \
-                                   GRUB_PE32_SECTION_ALIGNMENT)
+                                   GRUB_PE32_FILE_ALIGNMENT)
 
 static const struct grub_install_image_target_desc image_targets[] =
   {
@@ -1227,10 +1227,10 @@ grub_install_generate_image (const char *dir, const 
char *prefix,
          header_size = EFI64_HEADER_SIZE;
 
        reloc_addr = ALIGN_UP (header_size + core_size,
-                              image_target->section_align);
+                              GRUB_PE32_FILE_ALIGNMENT);
 
        pe_size = ALIGN_UP (reloc_addr + layout.reloc_size,
-                           image_target->section_align);
+                           GRUB_PE32_FILE_ALIGNMENT);
        pe_img = xmalloc (reloc_addr + layout.reloc_size);
        memset (pe_img, 0, header_size);
        memcpy ((char *) pe_img + header_size, core_img, core_size);
@@ -1280,7 +1280,7 @@ grub_install_generate_image (const char *dir, const char 
*prefix,
 
            o->image_base = 0;
            o->section_alignment = grub_host_to_target32 
(image_target->section_align);
-           o->file_alignment = grub_host_to_target32 
(image_target->section_align);
+           o->file_alignment = grub_host_to_target32 
(GRUB_PE32_FILE_ALIGNMENT);
            o->image_size = grub_host_to_target32 (pe_size);
            o->header_size = grub_host_to_target32 (header_size);
            o->subsystem = grub_host_to_target16 
(GRUB_PE32_SUBSYSTEM_EFI_APPLICATION);
@@ -1315,7 +1315,7 @@ grub_install_generate_image (const char *dir, const char 
*prefix,
            o->code_base = grub_cpu_to_le32 (header_size);
            o->image_base = 0;
            o->section_alignment = grub_host_to_target32 
(image_target->section_align);
-           o->file_alignment = grub_host_to_target32 
(image_target->section_align);
+           o->file_alignment = grub_host_to_target32 
(GRUB_PE32_FILE_ALIGNMENT);
            o->image_size = grub_host_to_target32 (pe_size);
            o->header_size = grub_host_to_target32 (header_size);
            o->subsystem = grub_host_to_target16 
(GRUB_PE32_SUBSYSTEM_EFI_APPLICATION);
-- 
2.12.3




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