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BaseTools: Add AArch64 ADR_PREL_LO21 and R_AARCH64_CONDBR19

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relocations

- ADR_PREL_LO21: support for loading a PC relative label offset.
- R_AARCH64_CONDBR19: support for conditional branch instruction (ELF64 code: 280).

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Harry Liebel <Harry.Liebel@arm.com>
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
Reviewed-by: Yingke Liu <yingke.d.liu@intel.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15745 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Harry Liebel 2014-08-04 08:44:11 +00:00 committed by oliviermartin
parent 4a00645100
commit 87280982b8
1 changed files with 19 additions and 1 deletions
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20
BaseTools/Source/C/GenFw/Elf64Convert.c
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@ -1,7 +1,7 @@
/** @file /** @file
Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR> Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
Portions copyright (c) 2013, ARM Ltd. All rights reserved.<BR> Portions copyright (c) 2013-2014, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available This program and the accompanying materials are licensed and made available
under the terms and conditions of the BSD License which accompanies this under the terms and conditions of the BSD License which accompanies this
@ -690,6 +690,18 @@ WriteSections64 (
switch (ELF_R_TYPE(Rel->r_info)) { switch (ELF_R_TYPE(Rel->r_info)) {
case R_AARCH64_ADR_PREL_LO21:
if (Rel->r_addend != 0 ) { /* TODO */
Error (NULL, 0, 3000, "Invalid", "AArch64: R_AARCH64_ADR_PREL_LO21 Need to fixup with addend!.");
}
break;
case R_AARCH64_CONDBR19:
if (Rel->r_addend != 0 ) { /* TODO */
Error (NULL, 0, 3000, "Invalid", "AArch64: R_AARCH64_CONDBR19 Need to fixup with addend!.");
}
break;
case R_AARCH64_LD_PREL_LO19: case R_AARCH64_LD_PREL_LO19:
if (Rel->r_addend != 0 ) { /* TODO */ if (Rel->r_addend != 0 ) { /* TODO */
Error (NULL, 0, 3000, "Invalid", "AArch64: R_AARCH64_LD_PREL_LO19 Need to fixup with addend!."); Error (NULL, 0, 3000, "Invalid", "AArch64: R_AARCH64_LD_PREL_LO19 Need to fixup with addend!.");
@ -784,6 +796,12 @@ WriteRelocations64 (
} else if (mEhdr->e_machine == EM_AARCH64) { } else if (mEhdr->e_machine == EM_AARCH64) {
// AArch64 GCC uses RELA relocation, so all relocations has to be fixed up. ARM32 uses REL. // AArch64 GCC uses RELA relocation, so all relocations has to be fixed up. ARM32 uses REL.
switch (ELF_R_TYPE(Rel->r_info)) { switch (ELF_R_TYPE(Rel->r_info)) {
case R_AARCH64_ADR_PREL_LO21:
break;
case R_AARCH64_CONDBR19:
break;
case R_AARCH64_LD_PREL_LO19: case R_AARCH64_LD_PREL_LO19:
break; break;