[PATCH 1/2] libelf: Sync elf.h from glibc.

[PATCH 1/2] libelf: Sync elf.h from glibc.

[Youling Tang]

Adds R_LARCH_*.

Signed-off-by: Youling Tang <tangyouling@loongson.cn>
---
 libelf/ChangeLog |  4 ++++
 libelf/elf.h     | 42 +++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 45 insertions(+), 1 deletion(-)

diff --git a/libelf/ChangeLog b/libelf/ChangeLog
index 8cc3c53c..1d5178ca 100644
--- a/libelf/ChangeLog
+++ b/libelf/ChangeLog
@@ -1,3 +1,7 @@
+2023-04-01  Youling Tang  <tangyouling@loongson.cn>
+
+	* elf.h: Update from glibc.
+
 2023-03-03  Mark Wielaard  <mark@klomp.org>
 
 	* libelf.h: Define ELFCOMPRESS_ZSTD if undefined.
diff --git a/libelf/elf.h b/libelf/elf.h
index da41bad3..4bc0e429 100644
--- a/libelf/elf.h
+++ b/libelf/elf.h
@@ -1,5 +1,5 @@
 /* This file defines standard ELF types, structures, and macros.
-   Copyright (C) 1995-2022 Free Software Foundation, Inc.
+   Copyright (C) 1995-2023 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -4159,6 +4159,46 @@ enum
 #define R_LARCH_GNU_VTINHERIT  57
 #define R_LARCH_GNU_VTENTRY  58
 
+/* reserved 59-63 */
+
+#define R_LARCH_B16 64
+#define R_LARCH_B21 65
+#define R_LARCH_B26 66
+#define R_LARCH_ABS_HI20 67
+#define R_LARCH_ABS_LO12 68
+#define R_LARCH_ABS64_LO20 69
+#define R_LARCH_ABS64_HI12 70
+#define R_LARCH_PCALA_HI20 71
+#define R_LARCH_PCALA_LO12 72
+#define R_LARCH_PCALA64_LO20 73
+#define R_LARCH_PCALA64_HI12 74
+#define R_LARCH_GOT_PC_HI20 75
+#define R_LARCH_GOT_PC_LO12 76
+#define R_LARCH_GOT64_PC_LO20 77
+#define R_LARCH_GOT64_PC_HI12 78
+#define R_LARCH_GOT_HI20 79
+#define R_LARCH_GOT_LO12 80
+#define R_LARCH_GOT64_LO20 81
+#define R_LARCH_GOT64_HI12 82
+#define R_LARCH_TLS_LE_HI20 83
+#define R_LARCH_TLS_LE_LO12 84
+#define R_LARCH_TLS_LE64_LO20 85
+#define R_LARCH_TLS_LE64_HI12 86
+#define R_LARCH_TLS_IE_PC_HI20 87
+#define R_LARCH_TLS_IE_PC_LO12 88
+#define R_LARCH_TLS_IE64_PC_LO20 89
+#define R_LARCH_TLS_IE64_PC_HI12 90
+#define R_LARCH_TLS_IE_HI20 91
+#define R_LARCH_TLS_IE_LO12 92
+#define R_LARCH_TLS_IE64_LO20 93
+#define R_LARCH_TLS_IE64_HI12 94
+#define R_LARCH_TLS_LD_PC_HI20 95
+#define R_LARCH_TLS_LD_HI20 96
+#define R_LARCH_TLS_GD_PC_HI20 97
+#define R_LARCH_TLS_GD_HI20 98
+#define R_LARCH_32_PCREL 99
+#define R_LARCH_RELAX 100
+
 /* ARC specific declarations.  */
 
 /* Processor specific flags for the Ehdr e_flags field.  */
-- 
2.37.1

[PATCH 2/2] backends: Add new relocation type handling for LoongArch

[Youling Tang]

Add new relocation type handling.

Signed-off-by: Youling Tang <tangyouling@loongson.cn>
---
 backends/ChangeLog           |  4 ++++
 backends/loongarch_reloc.def | 40 ++++++++++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+)

diff --git a/backends/ChangeLog b/backends/ChangeLog
index 41071953..cff82b01 100644
--- a/backends/ChangeLog
+++ b/backends/ChangeLog
@@ -1,3 +1,7 @@
+2023-04-01  Youling Tang  <tangyouling@loongson.cn>
+
+	* loongarch_reloc.def: Add RELOC_TYPE B16 to RELAX.
+
 2023-04-01  Youling Tang <tangyouling@loongson.cn>
 	* loongarch_init.c (loongarch_init): Hook check_special_symbol.
 	* loongarch_symbol.c (loongarch_check_special_symbol): New function.
diff --git a/backends/loongarch_reloc.def b/backends/loongarch_reloc.def
index dd4a6b6d..fd204924 100644
--- a/backends/loongarch_reloc.def
+++ b/backends/loongarch_reloc.def
@@ -79,3 +79,43 @@ RELOC_TYPE (SUB32,			REL)
 RELOC_TYPE (SUB64,			REL)
 RELOC_TYPE (GNU_VTINHERIT,		REL)
 RELOC_TYPE (GNU_VTENTRY,		REL)
+
+/* reserved 59-63 */
+
+RELOC_TYPE (B16,			REL)
+RELOC_TYPE (B21,			REL)
+RELOC_TYPE (B26,			REL)
+RELOC_TYPE (ABS_HI20,			REL)
+RELOC_TYPE (ABS_LO12,			REL)
+RELOC_TYPE (ABS64_LO20,			REL)
+RELOC_TYPE (ABS64_HI12,			REL)
+RELOC_TYPE (PCALA_HI20,			REL)
+RELOC_TYPE (PCALA_LO12,			REL)
+RELOC_TYPE (PCALA64_LO20,		REL)
+RELOC_TYPE (PCALA64_HI12,		REL)
+RELOC_TYPE (GOT_PC_HI20,		REL)
+RELOC_TYPE (GOT_PC_LO12,		REL)
+RELOC_TYPE (GOT64_PC_LO20,		REL)
+RELOC_TYPE (GOT64_PC_HI12,		REL)
+RELOC_TYPE (GOT_HI20,			REL)
+RELOC_TYPE (GOT_LO12,			REL)
+RELOC_TYPE (GOT64_LO20,			REL)
+RELOC_TYPE (GOT64_HI12,			REL)
+RELOC_TYPE (TLS_LE_HI20,		REL)
+RELOC_TYPE (TLS_LE_LO12,		REL)
+RELOC_TYPE (TLS_LE64_LO20,		REL)
+RELOC_TYPE (TLS_LE64_HI12,		REL)
+RELOC_TYPE (TLS_IE_PC_HI20,		REL)
+RELOC_TYPE (TLS_IE_PC_LO12,		REL)
+RELOC_TYPE (TLS_IE64_PC_LO20,		REL)
+RELOC_TYPE (TLS_IE64_PC_HI12,		REL)
+RELOC_TYPE (TLS_IE_HI20,		REL)
+RELOC_TYPE (TLS_IE_LO12,		REL)
+RELOC_TYPE (TLS_IE64_LO20,		REL)
+RELOC_TYPE (TLS_IE64_HI12,		REL)
+RELOC_TYPE (TLS_LD_PC_HI20,		REL)
+RELOC_TYPE (TLS_LD_HI20,		REL)
+RELOC_TYPE (TLS_GD_PC_HI20,		REL)
+RELOC_TYPE (TLS_GD_HI20,		REL)
+RELOC_TYPE (32_PCREL,			REL)
+RELOC_TYPE (RELAX,			REL)
-- 
2.37.1

Re: [PATCH 1/2] libelf: Sync elf.h from glibc.

[Mark Wielaard]

On Sat, Apr 01, 2023 at 02:43:43PM +0800, Youling Tang wrote:
> Adds R_LARCH_*.

Thanks, pushed.

Re: [PATCH 2/2] backends: Add new relocation type handling for LoongArch

[Mark Wielaard]

On Sat, Apr 01, 2023 at 02:43:44PM +0800, Youling Tang wrote:
> Add new relocation type handling.

Thanks, looks good. Pushed.

Cheers,

Mark