Re: [PATCH] Add support for ARCv2

[Mark Wielaard <mark@klomp.org>]

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Hi Shahab,

On Wed, Nov 30, 2022 at 08:15:55AM +0000, Shahab Vahedi via Elfutils-devel wrote:
> The necessary changes are in glibc now [1]. How/When does the sync happen? Should
> I submit a patch, or trigger a request, etc.?

Nice. I just synced elf.h.

Thanks,

Mark

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From 86347d80bec28c762ddc47aee866fcdaf781f25a Mon Sep 17 00:00:00 2001
From: Mark Wielaard <mark@klomp.org>
Date: Thu, 1 Dec 2022 00:25:01 +0100
Subject: [PATCH] libelf: Sync elf.h from glibc

Adds various new ARC related declarations.

Signed-off-by: Mark Wielaard <mark@klomp.org>
---
 libelf/ChangeLog |  4 ++++
 libelf/elf.h     | 36 +++++++++++++++++++++++++++++-------
 2 files changed, 33 insertions(+), 7 deletions(-)

diff --git a/libelf/ChangeLog b/libelf/ChangeLog
index 8107c71e..3ae3afe3 100644
--- a/libelf/ChangeLog
+++ b/libelf/ChangeLog
@@ -1,3 +1,7 @@
+2022-11-30  Mark Wielaard  <mark@klomp.org>
+
+	* elf.h: Update from glibc.
+
 2022-10-28  Mark Wielaard  <mark@klomp.org>
 
 	* elf.h: Update from glibc.
diff --git a/libelf/elf.h b/libelf/elf.h
index f51300bc..da41bad3 100644
--- a/libelf/elf.h
+++ b/libelf/elf.h
@@ -4093,8 +4093,11 @@ enum
 #define R_NDS32_TLS_DESC	119
 
 /* LoongArch ELF Flags */
-#define EF_LARCH_ABI    	0x07
-#define EF_LARCH_ABI_LP64D	0x03
+#define EF_LARCH_ABI_MODIFIER_MASK  0x07
+#define EF_LARCH_ABI_SOFT_FLOAT     0x01
+#define EF_LARCH_ABI_SINGLE_FLOAT   0x02
+#define EF_LARCH_ABI_DOUBLE_FLOAT   0x03
+#define EF_LARCH_OBJABI_V1          0x40
 
 /* LoongArch specific dynamic relocations */
 #define R_LARCH_NONE		0
@@ -4156,6 +4159,15 @@ enum
 #define R_LARCH_GNU_VTINHERIT  57
 #define R_LARCH_GNU_VTENTRY  58
 
+/* ARC specific declarations.  */
+
+/* Processor specific flags for the Ehdr e_flags field.  */
+#define EF_ARC_MACH_MSK	    0x000000ff
+#define EF_ARC_OSABI_MSK    0x00000f00
+#define EF_ARC_ALL_MSK	    (EF_ARC_MACH_MSK | EF_ARC_OSABI_MSK)
+
+/* Processor specific values for the Shdr sh_type field.  */
+#define SHT_ARC_ATTRIBUTES	(SHT_LOPROC + 1) /* ARC attributes section.  */
 
 /* ARCompact/ARCv2 specific relocs.  */
 #define R_ARC_NONE		0x0
@@ -4163,7 +4175,7 @@ enum
 #define R_ARC_16		0x2
 #define R_ARC_24		0x3
 #define R_ARC_32		0x4
-#define R_ARC_B26		0x5
+
 #define R_ARC_B22_PCREL		0x6
 #define R_ARC_H30		0x7
 #define R_ARC_N8		0x8
@@ -4203,16 +4215,23 @@ enum
 #define R_ARC_SECTOFF_ME_2	0x2A
 #define R_ARC_SECTOFF_1		0x2B
 #define R_ARC_SECTOFF_2		0x2C
+#define R_ARC_SDA_12		0x2D
+#define R_ARC_SDA16_ST2		0x30
+#define R_ARC_32_PCREL		0x31
 #define R_ARC_PC32		0x32
 #define R_ARC_GOTPC32		0x33
 #define R_ARC_PLT32		0x34
 #define R_ARC_COPY		0x35
 #define R_ARC_GLOB_DAT		0x36
-#define R_ARC_JUMP_SLOT		0x37
+#define R_ARC_JMP_SLOT		0x37
 #define R_ARC_RELATIVE		0x38
 #define R_ARC_GOTOFF		0x39
 #define R_ARC_GOTPC		0x3A
 #define R_ARC_GOT32		0x3B
+#define R_ARC_S21W_PCREL_PLT	0x3C
+#define R_ARC_S25H_PCREL_PLT	0x3D
+
+#define R_ARC_JLI_SECTOFF	0x3F
 
 #define R_ARC_TLS_DTPMOD	0x42
 #define R_ARC_TLS_DTPOFF	0x43
@@ -4221,9 +4240,12 @@ enum
 #define R_ARC_TLS_GD_LD	        0x46
 #define R_ARC_TLS_GD_CALL	0x47
 #define R_ARC_TLS_IE_GOT	0x48
-#define R_ARC_TLS_DTPOFF_S9	0x4a
-#define R_ARC_TLS_LE_S9		0x4a
-#define R_ARC_TLS_LE_32		0x4b
+#define R_ARC_TLS_DTPOFF_S9	0x49
+#define R_ARC_TLS_LE_S9		0x4A
+#define R_ARC_TLS_LE_32		0x4B
+#define R_ARC_S25W_PCREL_PLT	0x4C
+#define R_ARC_S21H_PCREL_PLT	0x4D
+#define R_ARC_NPS_CMEM16	0x4E
 
 /* OpenRISC 1000 specific relocs.  */
 #define R_OR1K_NONE		0
-- 
2.30.2