[PATCH 1/14] [LoongArch] Add relocations and ELF flags to elf.h
Paul Hua
paul.hua.gm@gmail.com
Thu Aug 19 03:48:34 GMT 2021
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>From 07569b3406100ecc60b175cb7cfadf13547fe38d Mon Sep 17 00:00:00 2001
From: caiyinyu <caiyinyu@loongson.cn>
Date: Tue, 27 Jul 2021 15:14:34 +0800
Subject: [PATCH 01/14] LoongArch: Add relocations and ELF flags to elf.h
* elf/elf.h (EM_LOONGARCH): New define.
(EF_LARCH_ABI): Likewise.
(EF_LARCH_ABI_LP64): Likewise.
(EF_LARCH_ABI_LP32): Likewise.
(R_LARCH_NONE): Likewise.
(R_LARCH_32): Likewise.
(R_LARCH_64): Likewise.
(R_LARCH_RELATIVE): Likewise.
(R_LARCH_COPY): Likewise.
(R_LARCH_JUMP_SLOT): Likewise.
(R_LARCH_TLS_DTPMOD32): Likewise.
(R_LARCH_TLS_DTPMOD64): Likewise.
(R_LARCH_TLS_DTPREL32): Likewise.
(R_LARCH_TLS_DTPREL64): Likewise.
(R_LARCH_TLS_TPREL32): Likewise.
(R_LARCH_TLS_TPREL64): Likewise.
(R_LARCH_IRELATIVE): Likewise.
(R_LARCH_MARK_LA): Likewise.
(R_LARCH_MARK_PCREL): Likewise.
(R_LARCH_SOP_PUSH_PCREL): Likewise.
(R_LARCH_SOP_PUSH_ABSOLUTE): Likewise.
(R_LARCH_SOP_PUSH_DUP): Likewise.
(R_LARCH_SOP_PUSH_GPREL): Likewise.
(R_LARCH_SOP_PUSH_TLS_TPREL): Likewise.
(R_LARCH_SOP_PUSH_TLS_GOT): Likewise.
(R_LARCH_SOP_PUSH_TLS_GD): Likewise.
(R_LARCH_SOP_PUSH_PLT_PCREL): Likewise.
(R_LARCH_SOP_ASSERT): Likewise.
(R_LARCH_SOP_NOT): Likewise.
(R_LARCH_SOP_SUB): Likewise.
(R_LARCH_SOP_SL): Likewise.
(R_LARCH_SOP_SR): Likewise.
(R_LARCH_SOP_ADD): Likewise.
(R_LARCH_SOP_AND): Likewise.
(R_LARCH_SOP_IF_ELSE): Likewise.
(R_LARCH_SOP_POP_32_S_10_5): Likewise.
(R_LARCH_SOP_POP_32_U_10_12): Likewise.
(R_LARCH_SOP_POP_32_S_10_12): Likewise.
(R_LARCH_SOP_POP_32_S_10_16): Likewise.
(R_LARCH_SOP_POP_32_S_10_16_S2): Likewise.
(R_LARCH_SOP_POP_32_S_5_20): Likewise.
(R_LARCH_SOP_POP_32_S_0_5_10_16_S2): Likewise.
(R_LARCH_SOP_POP_32_S_0_10_10_16_S2): Likewise.
(R_LARCH_SOP_POP_32_U): Likewise.
(R_LARCH_ADD8): Likewise.
(R_LARCH_ADD16): Likewise.
(R_LARCH_ADD24): Likewise.
(R_LARCH_ADD32): Likewise.
(R_LARCH_ADD64): Likewise.
(R_LARCH_SUB8): Likewise.
(R_LARCH_SUB16): Likewise.
(R_LARCH_SUB24): Likewise.
(R_LARCH_SUB32): Likewise.
(R_LARCH_SUB64): Likewise.
(R_LARCH_GNU_VTINHERIT): Likewise.
(R_LARCH_GNU_VTENTRY): Likewise.
---
elf/elf.h | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 71 insertions(+), 1 deletion(-)
diff --git a/elf/elf.h b/elf/elf.h
index 4738dfa28f..03ece6832d 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -358,8 +358,9 @@ typedef struct
#define EM_BPF 247 /* Linux BPF -- in-kernel virtual machine */
#define EM_CSKY 252 /* C-SKY */
+#define EM_LOONGARCH 258 /* LoongArch */
-#define EM_NUM 253
+#define EM_NUM 259
/* Old spellings/synonyms. */
@@ -4034,6 +4035,75 @@ enum
#define R_NDS32_TLS_TPOFF 102
#define R_NDS32_TLS_DESC 119
+/* LoongArch ELF Flags */
+#define EF_LARCH_ABI 0x0003
+#define EF_LARCH_ABI_LP64 0x0003
+#define EF_LARCH_ABI_LP32 0x0001
+
+/* LoongArch specific dynamic relocations */
+#define R_LARCH_NONE 0
+#define R_LARCH_32 1
+#define R_LARCH_64 2
+#define R_LARCH_RELATIVE 3
+#define R_LARCH_COPY 4
+#define R_LARCH_JUMP_SLOT 5
+#define R_LARCH_TLS_DTPMOD32 6
+#define R_LARCH_TLS_DTPMOD64 7
+#define R_LARCH_TLS_DTPREL32 8
+#define R_LARCH_TLS_DTPREL64 9
+#define R_LARCH_TLS_TPREL32 10
+#define R_LARCH_TLS_TPREL64 11
+#define R_LARCH_IRELATIVE 12
+
+/* Reserved for future relocs that the dynamic linker must understand. */
+
+/* used by the static linker for relocating .text. */
+#define R_LARCH_MARK_LA 20
+#define R_LARCH_MARK_PCREL 21
+#define R_LARCH_SOP_PUSH_PCREL 22
+#define R_LARCH_SOP_PUSH_ABSOLUTE 23
+#define R_LARCH_SOP_PUSH_DUP 24
+#define R_LARCH_SOP_PUSH_GPREL 25
+#define R_LARCH_SOP_PUSH_TLS_TPREL 26
+#define R_LARCH_SOP_PUSH_TLS_GOT 27
+#define R_LARCH_SOP_PUSH_TLS_GD 28
+#define R_LARCH_SOP_PUSH_PLT_PCREL 29
+
+#define R_LARCH_SOP_ASSERT 30
+#define R_LARCH_SOP_NOT 31
+#define R_LARCH_SOP_SUB 32
+#define R_LARCH_SOP_SL 33
+#define R_LARCH_SOP_SR 34
+#define R_LARCH_SOP_ADD 35
+#define R_LARCH_SOP_AND 36
+#define R_LARCH_SOP_IF_ELSE 37
+#define R_LARCH_SOP_POP_32_S_10_5 38
+#define R_LARCH_SOP_POP_32_U_10_12 39
+#define R_LARCH_SOP_POP_32_S_10_12 40
+#define R_LARCH_SOP_POP_32_S_10_16 41
+#define R_LARCH_SOP_POP_32_S_10_16_S2 42
+#define R_LARCH_SOP_POP_32_S_5_20 43
+#define R_LARCH_SOP_POP_32_S_0_5_10_16_S2 44
+#define R_LARCH_SOP_POP_32_S_0_10_10_16_S2 45
+#define R_LARCH_SOP_POP_32_U 46
+
+/* used by the static linker for relocating non .text. */
+#define R_LARCH_ADD8 47
+#define R_LARCH_ADD16 48
+#define R_LARCH_ADD24 49
+#define R_LARCH_ADD32 50
+#define R_LARCH_ADD64 51
+#define R_LARCH_SUB8 52
+#define R_LARCH_SUB16 53
+#define R_LARCH_SUB24 54
+#define R_LARCH_SUB32 55
+#define R_LARCH_SUB64 56
+
+ /* I don't know what it is. Existing in almost all other arch. */
+#define R_LARCH_GNU_VTINHERIT 57
+#define R_LARCH_GNU_VTENTRY 58
+
+
/* ARCompact/ARCv2 specific relocs. */
#define R_ARC_NONE 0x0
#define R_ARC_8 0x1
--
2.27.0
On Thu, Aug 19, 2021 at 11:30 AM Paul Hua <paul.hua.gm@gmail.com> wrote:
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