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-rw-r--r--ArmVirtPkg/PrePi/Arm/ModuleEntryPoint.S47
1 files changed, 12 insertions, 35 deletions
diff --git a/ArmVirtPkg/PrePi/Arm/ModuleEntryPoint.S b/ArmVirtPkg/PrePi/Arm/ModuleEntryPoint.S
index 72d756fdb5..f0536c65eb 100644
--- a/ArmVirtPkg/PrePi/Arm/ModuleEntryPoint.S
+++ b/ArmVirtPkg/PrePi/Arm/ModuleEntryPoint.S
@@ -9,38 +9,6 @@
#include <AsmMacroIoLib.h>
ASM_FUNC(_ModuleEntryPoint)
- //
- // We are built as a ET_DYN PIE executable, so we need to process all
- // relative relocations if we are executing from a different offset than we
- // were linked at. This is only possible if we are running from RAM.
- //
- ADRL (r4, __reloc_base)
- ADRL (r5, __reloc_start)
- ADRL (r6, __reloc_end)
-
-.Lreloc_loop:
- cmp r5, r6
- bhs .Lreloc_done
-
- //
- // AArch32 uses the ELF32 REL format, which means each entry in the
- // relocation table consists of
- //
- // UINT32 offset : the relative offset of the value that needs to
- // be relocated
- // UINT32 info : relocation type and symbol index (the latter is
- // not used for R_ARM_RELATIVE relocations)
- //
- ldrd r8, r9, [r5], #8 // read offset into r8 and info into r9
- cmp r9, #23 // check info == R_ARM_RELATIVE?
- bne .Lreloc_loop // not a relative relocation? then skip
-
- ldr r9, [r8, r4] // read addend into r9
- add r9, r9, r1 // add image base to addend to get relocated value
- str r9, [r8, r4] // write relocated value at offset
- b .Lreloc_loop
-.Lreloc_done:
-
// Do early platform specific actions
bl ASM_PFX(ArmPlatformPeiBootAction)
@@ -173,14 +141,23 @@ ASM_PFX(ArmPlatformPeiBootAction):
str r5, [r7]
//
+ // The runtime address may be different from the link time address so fix
+ // up the PE/COFF relocations. Since we are calling a C function, use the
+ // window at the beginning of the FD image as a temp stack.
+ //
+ mov r0, r5
+ ADRL (r1, PeCoffLoaderImageReadFromMemory)
+ mov sp, r5
+ bl RelocatePeCoffImage
+
+ //
// Discover the memory size and offset from the DTB, and record in the
// respective PCDs. This will also return false if a corrupt DTB is
- // encountered. Since we are calling a C function, use the window at the
- // beginning of the FD image as a temp stack.
+ // encountered.
//
+ mov r0, r10
ADRL (r1, PcdGet64 (PcdSystemMemoryBase))
ADRL (r2, PcdGet64 (PcdSystemMemorySize))
- mov sp, r5
bl FindMemnode
teq r0, #0
beq .Lout