[gcc r15-10254] RTEMS: Add riscv multilibs

[Sebastian Huber via Gcc-cvs]

https://gcc.gnu.org/g:87950059c65ddf22c814fbbd6e7bfbc1caf365cc

commit r15-10254-g87950059c65ddf22c814fbbd6e7bfbc1caf365cc
Author: Sebastian Huber <sebastian.hu...@embedded-brains.de>
Date:   Mon Jun 30 09:40:10 2025 +0200

    RTEMS: Add riscv multilibs
    
    gcc/ChangeLog:
    
            * config/riscv/t-rtems: Add -mstrict-align multilibs for
            targets without support for misaligned access in hardware.
    
    (cherry picked from commit 73a2a9d6c2eab34b2a1f83a1c4286c87a9586b84)

Diff:
---
 gcc/config/riscv/t-rtems | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/gcc/config/riscv/t-rtems b/gcc/config/riscv/t-rtems
index f596e764f9d0..a4d2d03f5602 100644
--- a/gcc/config/riscv/t-rtems
+++ b/gcc/config/riscv/t-rtems
@@ -1,8 +1,8 @@
 MULTILIB_OPTIONS       =
 MULTILIB_DIRNAMES      =
 
-MULTILIB_OPTIONS       += 
march=rv32i/march=rv32iac/march=rv32im/march=rv32imf/march=rv32ima/march=rv32imac/march=rv32imaf/march=rv32imafc/march=rv32imafd/march=rv32imafdc/march=rv64ima/march=rv64imac/march=rv64imafd/march=rv64imafdc
-MULTILIB_DIRNAMES      += rv32i       rv32iac       rv32im       rv32imf      
rv32ima       rv32imac       rv32imaf       rv32imafc       rv32imafd       
rv32imafdc       rv64ima       rv64imac       rv64imafd       rv64imafdc
+MULTILIB_OPTIONS       += 
march=rv32i/march=rv32iac/march=rv32im/march=rv32imf/march=rv32ima/march=rv32imac/march=rv32imaf/march=rv32imafc/march=rv32imafd/march=rv32imafdc/march=rv64ima/march=rv64imac/march=rv64imafd/march=rv64imafdc/march=rv64imc
+MULTILIB_DIRNAMES      += rv32i       rv32iac       rv32im       rv32imf       
rv32ima       rv32imac       rv32imaf       rv32imafc       rv32imafd       
rv32imafdc       rv64ima       rv64imac       rv64imafd       rv64imafdc       
rv64imc
 
 MULTILIB_OPTIONS       += 
mabi=ilp32/mabi=ilp32f/mabi=ilp32d/mabi=lp64/mabi=lp64d
 MULTILIB_DIRNAMES      += ilp32      ilp32f      ilp32d      lp64      lp64d
@@ -10,6 +10,9 @@ MULTILIB_DIRNAMES     += ilp32      ilp32f      ilp32d      
lp64      lp64d
 MULTILIB_OPTIONS       += mcmodel=medany
 MULTILIB_DIRNAMES      += medany
 
+MULTILIB_OPTIONS       += mstrict-align
+MULTILIB_DIRNAMES      += strict-align
+
 MULTILIB_REQUIRED      =
 MULTILIB_REQUIRED      += march=rv32i/mabi=ilp32
 MULTILIB_REQUIRED      += march=rv32iac/mabi=ilp32
@@ -25,3 +28,5 @@ MULTILIB_REQUIRED     += 
march=rv64ima/mabi=lp64/mcmodel=medany
 MULTILIB_REQUIRED      += march=rv64imac/mabi=lp64/mcmodel=medany
 MULTILIB_REQUIRED      += march=rv64imafd/mabi=lp64d/mcmodel=medany
 MULTILIB_REQUIRED      += march=rv64imafdc/mabi=lp64d/mcmodel=medany
+MULTILIB_REQUIRED      += 
march=rv64imafdc/mabi=lp64d/mcmodel=medany/mstrict-align
+MULTILIB_REQUIRED      += march=rv64imc/mabi=lp64/mcmodel=medany/mstrict-align