File riscv-no-relax.patch of Package binutils

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File riscv-no-relax.patch of Package binutils (Revision 6d3743153359933469700041ea23364d)

Currently displaying revision 6d3743153359933469700041ea23364d , Show latest

From af514e5f6d1d0233a251a3ae17f7cb8d9ba8e36b Mon Sep 17 00:00:00 2001
From: Nelson Chu <nelson@rivosinc.com>
Date: Mon, 29 Jan 2024 21:17:41 +0800
Subject: [PATCH] RISC-V: Don't generate branch/jump relocation if symbol is
 local when no-relax.

Refer to commit, dff565fcca8137954d6ad571ef39f6aec5c0429c.  Theoretically,
assembler don't need to generate the pc-relative relocation and the refered
local .L symbol when relaxation is disabled.  The above commit improved the
pcrel_hi/pcrel_lo relocations, and this commit improves branch and jump
relocations.

Passed the gcc/binutils regressions of riscv-gnu-toolchain.

gas/
	* config/tc-riscv.c (md_apply_fix): Raise fixP->fx_done for all
	branch and jump relocations when -mno-relax.
---
 gas/config/tc-riscv.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/gas/config/tc-riscv.c b/gas/config/tc-riscv.c
index a4161420128..cbead954f09 100644
--- a/gas/config/tc-riscv.c
+++ b/gas/config/tc-riscv.c
@@ -4390,6 +4390,8 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
 	  bfd_vma target = S_GET_VALUE (fixP->fx_addsy) + *valP;
 	  bfd_vma delta = target - md_pcrel_from (fixP);
 	  bfd_putl32 (bfd_getl32 (buf) | ENCODE_JTYPE_IMM (delta), buf);
+	  if (!riscv_opts.relax && S_IS_LOCAL (fixP->fx_addsy))
+	    fixP->fx_done = 1;
 	}
       break;
 
@@ -4400,6 +4402,8 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
 	  bfd_vma target = S_GET_VALUE (fixP->fx_addsy) + *valP;
 	  bfd_vma delta = target - md_pcrel_from (fixP);
 	  bfd_putl32 (bfd_getl32 (buf) | ENCODE_BTYPE_IMM (delta), buf);
+	  if (!riscv_opts.relax && S_IS_LOCAL (fixP->fx_addsy))
+	    fixP->fx_done = 1;
 	}
       break;
 
@@ -4410,6 +4414,8 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
 	  bfd_vma target = S_GET_VALUE (fixP->fx_addsy) + *valP;
 	  bfd_vma delta = target - md_pcrel_from (fixP);
 	  bfd_putl16 (bfd_getl16 (buf) | ENCODE_CBTYPE_IMM (delta), buf);
+	  if (!riscv_opts.relax && S_IS_LOCAL (fixP->fx_addsy))
+	    fixP->fx_done = 1;
 	}
       break;
 
@@ -4420,6 +4426,8 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
 	  bfd_vma target = S_GET_VALUE (fixP->fx_addsy) + *valP;
 	  bfd_vma delta = target - md_pcrel_from (fixP);
 	  bfd_putl16 (bfd_getl16 (buf) | ENCODE_CJTYPE_IMM (delta), buf);
+	  if (!riscv_opts.relax && S_IS_LOCAL (fixP->fx_addsy))
+	    fixP->fx_done = 1;
 	}
       break;
 
-- 
2.43.2

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