From: Shahab Vahedi via Libc-alpha <libc-alpha@sourceware.org>
To: libc-alpha@sourceware.org
Cc: Shahab Vahedi <Shahab.Vahedi@synopsys.com>,
Vineet Gupta <vineet.gupta@linux.dev>,
Claudiu Zissulescu <Claudiu.Zissulescu@synopsys.com>
Subject: [PATCH] ARC: update definitions in elf/elf.h
Date: Fri, 18 Nov 2022 14:15:42 +0100 [thread overview]
Message-ID: <20221118131542.23188-1-shahab@synopsys.com> (raw)
While porting ARCv2 to elfutils [1], it was brought up that the
necessary changes to the project's libelf/elf.h must come from
glibc, because they sync it from glibc [2]. Therefore, this patch
is to update ARC entries in elf/elf.h.
The majority of the update is about adding new definitions,
specially for the relocations. However, there is one rename, one
deletion, and one change:
- R_ARC_JUMP_SLOT renamed to R_ARC_JMP_SLOT to match binutils.
- R_ARC_B26 removed because it is unused and deprecated.
- R_ARC_TLS_DTPOFF_S9 changed from 0x4a to the correct value 0x49.
[1]
https://sourceware.org/pipermail/elfutils-devel/2022q4/005530.html
[2]
https://sourceware.org/pipermail/elfutils-devel/2022q4/005548.html
Signed-off-by: Shahab Vahedi <shahab@synopsys.com>
---
elf/elf.h | 30 +++++++++++++++++++++++++-----
1 file changed, 25 insertions(+), 5 deletions(-)
diff --git a/elf/elf.h b/elf/elf.h
index 920e6891e6..dfe5f79036 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -4160,13 +4160,23 @@ enum
#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
#define R_ARC_8 0x1
#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
@@ -4206,16 +4216,23 @@ 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
@@ -4224,9 +4241,12 @@ 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
--
2.38.1
next reply other threads:[~2022-11-18 13:16 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-18 13:15 Shahab Vahedi via Libc-alpha [this message]
2022-11-19 0:34 ` [PATCH] ARC: update definitions in elf/elf.h Vineet Gupta via Libc-alpha
2022-11-21 13:07 ` Shahab Vahedi via Libc-alpha
2022-11-21 13:06 ` [PATCH v2] " Shahab Vahedi via Libc-alpha
2022-11-21 14:30 ` Adhemerval Zanella Netto via Libc-alpha
2022-11-23 4:13 ` Vineet Gupta via Libc-alpha
2022-11-27 17:38 ` [PATCH v3 0/2] Update ARC " Shahab Vahedi via Libc-alpha
2022-11-27 17:38 ` [PATCH v3 1/2] scripts: Add "|" operator support to glibcpp's parsing Shahab Vahedi via Libc-alpha
2022-11-27 18:21 ` Florian Weimer via Libc-alpha
2022-11-30 2:11 ` Vineet Gupta via Libc-alpha
2022-11-27 17:38 ` [PATCH v3 2/2] ARC: update definitions in elf/elf.h Shahab Vahedi via Libc-alpha
2022-11-30 2:11 ` Vineet Gupta via Libc-alpha
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