From: mengqinggang <mengqinggang@loongson.cn>
To: binutils@sourceware.org
Cc: xuchenghua@loongson.cn, liuzhensong@loongson.cn,
chenglulu@loongson.cn, xry111@xry111.site, i.swmail@xen0n.name,
maskray@google.com, schwab@suse.de,
mengqinggang <mengqinggang@loongson.cn>
Subject: [PATCH v2 1/6] LoongArch: include: Add support for linker relaxation.
Date: Tue, 13 Dec 2022 14:58:46 +0800 [thread overview]
Message-ID: <20221213065851.2777297-2-mengqinggang@loongson.cn> (raw)
In-Reply-To: <20221213065851.2777297-1-mengqinggang@loongson.cn>
Add relocs and gas LARCH_opts.relax option.
include/ChangeLog:
* elf/loongarch.h: Add relocs.
* opcode/loongarch.h: Add LARCH_opts.relax and macro LARCH_NOP.
---
include/elf/loongarch.h | 20 ++++++++++++++++++++
include/opcode/loongarch.h | 3 +++
2 files changed, 23 insertions(+)
diff --git a/include/elf/loongarch.h b/include/elf/loongarch.h
index a6341b46791..4e7470064e7 100644
--- a/include/elf/loongarch.h
+++ b/include/elf/loongarch.h
@@ -229,6 +229,26 @@ RELOC_NUMBER (R_LARCH_32_PCREL, 99)
/* RELAX. */
RELOC_NUMBER (R_LARCH_RELAX, 100)
+/* relax delete. */
+RELOC_NUMBER (R_LARCH_DELETE, 101)
+
+/* relax align. */
+RELOC_NUMBER (R_LARCH_ALIGN, 102)
+
+/* pcaddi. */
+RELOC_NUMBER (R_LARCH_PCREL20_S2, 103)
+
+/* cfa. */
+RELOC_NUMBER (R_LARCH_CFA, 104)
+
+/* DW_CFA_advance_loc. */
+RELOC_NUMBER (R_LARCH_ADD6, 105)
+RELOC_NUMBER (R_LARCH_SUB6, 106)
+
+/* unsigned leb128. */
+RELOC_NUMBER (R_LARCH_ADD_ULEB128, 107)
+RELOC_NUMBER (R_LARCH_SUB_ULEB128, 108)
+
END_RELOC_NUMBERS (R_LARCH_count)
/* Processor specific flags for the ELF header e_flags field. */
diff --git a/include/opcode/loongarch.h b/include/opcode/loongarch.h
index c3922348a56..71570e9acc2 100644
--- a/include/opcode/loongarch.h
+++ b/include/opcode/loongarch.h
@@ -28,6 +28,8 @@ extern "C"
{
#endif
+ #define LARCH_NOP 0x03400000
+
typedef uint32_t insn_t;
struct loongarch_opcode
@@ -228,6 +230,7 @@ dec2 : [1-9][0-9]?
#define ase_gpcr isa.use_la_global_with_pcrel
#define ase_gabs isa.use_la_global_with_abs
+ int relax;
} LARCH_opts;
extern size_t loongarch_insn_length (insn_t insn);
--
2.36.0
next prev parent reply other threads:[~2022-12-13 6:59 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-13 6:58 [PATCH v2 0/6] LoongArch linker relaxation support mengqinggang
2022-12-13 6:58 ` mengqinggang [this message]
2022-12-13 6:58 ` [PATCH v2 2/6] LoongArch: bfd: Add support for linker relaxation mengqinggang
2022-12-13 6:58 ` [PATCH v2 3/6] LoongArch: opcodes: " mengqinggang
2022-12-14 19:21 ` Hans-Peter Nilsson
2022-12-13 6:58 ` [PATCH v2 4/6] LoongArch: binutils: " mengqinggang
2022-12-13 6:58 ` [PATCH v2 5/6] LoongArch: gas: " mengqinggang
2022-12-13 6:58 ` [PATCH v2 6/6] LoongArch: ld: " mengqinggang
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