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arm: efi: Generate Microsoft PE format compliant images

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Per Microsoft PE Format documentation [1], PointerToSymbolTable and
NumberOfSymbols should be zero for an image in the COFF file header.
Currently the COFF file header is hardcoded on ARM and these two
members are not zero.

This updates the hardcoded structure to clear these two members, as
well as setting the flag IMAGE_FILE_LOCAL_SYMS_STRIPPED so that we
can generate compliant *.efi images.

[1] https://docs.microsoft.com/zh-cn/windows/desktop/Debug/pe-format

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Bin Meng 2018-10-02 07:39:33 -07:00 committed by Alexander Graf
parent 16c3da3fe9
commit fb8ebf52a4
2 changed files with 14 additions and 14 deletions
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12
arch/arm/lib/crt0_aarch64_efi.S
View file

@ -28,13 +28,13 @@ coff_header:
.short 2 /* nr_sections */
.long 0 /* TimeDateStamp */
.long 0 /* PointerToSymbolTable */
.long 1 /* NumberOfSymbols */
.long 0 /* NumberOfSymbols */
.short section_table - optional_header /* SizeOfOptionalHeader */
/*
* Characteristics: IMAGE_FILE_DEBUG_STRIPPED |
* IMAGE_FILE_EXECUTABLE_IMAGE | IMAGE_FILE_LINE_NUMS_STRIPPED
*/
.short 0x206
/* Characteristics */
.short (IMAGE_FILE_EXECUTABLE_IMAGE | \
IMAGE_FILE_LINE_NUMS_STRIPPED | \
IMAGE_FILE_LOCAL_SYMS_STRIPPED | \
IMAGE_FILE_DEBUG_STRIPPED)
optional_header:
.short 0x20b /* PE32+ format */
.byte 0x02 /* MajorLinkerVersion */

16
arch/arm/lib/crt0_arm_efi.S
View file

@ -27,16 +27,16 @@ coff_header:
.short 2 /* nr_sections */
.long 0 /* TimeDateStamp */
.long 0 /* PointerToSymbolTable */
.long 1 /* NumberOfSymbols */
.long 0 /* NumberOfSymbols */
.short section_table - optional_header /* SizeOfOptionalHeader */
/*
* Characteristics: IMAGE_FILE_32BIT_MACHINE |
* IMAGE_FILE_DEBUG_STRIPPED | IMAGE_FILE_EXECUTABLE_IMAGE |
* IMAGE_FILE_LINE_NUMS_STRIPPED
*/
.short 0x306
/* Characteristics */
.short (IMAGE_FILE_EXECUTABLE_IMAGE | \
IMAGE_FILE_LINE_NUMS_STRIPPED | \
IMAGE_FILE_LOCAL_SYMS_STRIPPED | \
IMAGE_FILE_32BIT_MACHINE | \
IMAGE_FILE_DEBUG_STRIPPED)
optional_header:
.short 0x10b /* PE32+ format */
.short 0x10b /* PE32 format */
.byte 0x02 /* MajorLinkerVersion */
.byte 0x14 /* MinorLinkerVersion */
.long _edata - _start /* SizeOfCode */