From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2093) id E3E80385BF9E; Tue, 23 Mar 2021 09:32:58 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E3E80385BF9E MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Kito Cheng To: gcc-cvs@gcc.gnu.org Subject: [gcc r11-7778] RISC-V: Add riscv{32,64}be with big endian as default X-Act-Checkin: gcc X-Git-Author: Marcus Comstedt X-Git-Refname: refs/heads/master X-Git-Oldrev: a9604fcbb29e457a4824a496905057dcc2e5d78a X-Git-Newrev: cd1e2f632532d04c67a17820cb25826f8b0febac Message-Id: <20210323093258.E3E80385BF9E@sourceware.org> Date: Tue, 23 Mar 2021 09:32:58 +0000 (GMT) X-BeenThere: gcc-cvs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Mar 2021 09:32:59 -0000 https://gcc.gnu.org/g:cd1e2f632532d04c67a17820cb25826f8b0febac commit r11-7778-gcd1e2f632532d04c67a17820cb25826f8b0febac Author: Marcus Comstedt Date: Fri Mar 19 20:49:04 2021 +0100 RISC-V: Add riscv{32,64}be with big endian as default gcc/ * common/config/riscv/riscv-common.c (TARGET_DEFAULT_TARGET_FLAGS): Set default endianness. * config.gcc (riscv32be-*, riscv64be-*): Set TARGET_BIG_ENDIAN_DEFAULT to 1. * config/riscv/elf.h (LINK_SPEC): Change -melf* value depending on default endianness. * config/riscv/freebsd.h (LINK_SPEC): Likewise. * config/riscv/linux.h (LINK_SPEC): Likewise. * config/riscv/riscv.c (TARGET_DEFAULT_TARGET_FLAGS): Set default endianness. * config/riscv/riscv.h (DEFAULT_ENDIAN_SPEC): New macro. Diff: --- gcc/common/config/riscv/riscv-common.c | 5 +++++ gcc/config.gcc | 15 +++++++++++++++ gcc/config/riscv/elf.h | 2 +- gcc/config/riscv/freebsd.h | 2 +- gcc/config/riscv/linux.h | 2 +- gcc/config/riscv/riscv.c | 5 +++++ gcc/config/riscv/riscv.h | 6 ++++++ 7 files changed, 34 insertions(+), 3 deletions(-) diff --git a/gcc/common/config/riscv/riscv-common.c b/gcc/common/config/riscv/riscv-common.c index 6bbe25dba89..34b74e52a2d 100644 --- a/gcc/common/config/riscv/riscv-common.c +++ b/gcc/common/config/riscv/riscv-common.c @@ -32,6 +32,11 @@ along with GCC; see the file COPYING3. If not see #include "config/riscv/riscv-protos.h" #include "config/riscv/riscv-subset.h" +#ifdef TARGET_BIG_ENDIAN_DEFAULT +#undef TARGET_DEFAULT_TARGET_FLAGS +#define TARGET_DEFAULT_TARGET_FLAGS (MASK_BIG_ENDIAN) +#endif + /* Type for implied ISA info. */ struct riscv_implied_info_t { diff --git a/gcc/config.gcc b/gcc/config.gcc index 9cecc140c83..ed6203b2efc 100644 --- a/gcc/config.gcc +++ b/gcc/config.gcc @@ -2468,6 +2468,11 @@ riscv*-*-linux*) tmake_file="${tmake_file} riscv/t-riscv riscv/t-linux" gnu_ld=yes gas=yes + case $target in + riscv32be-*|riscv64be-*) + tm_defines="${tm_defines} TARGET_BIG_ENDIAN_DEFAULT=1" + ;; + esac # Force .init_array support. The configure script cannot always # automatically detect that GAS supports it, yet we require it. gcc_cv_initfini_array=yes @@ -2491,6 +2496,11 @@ riscv*-*-elf* | riscv*-*-rtems*) tmake_file="${tmake_file} riscv/t-riscv" gnu_ld=yes gas=yes + case $target in + riscv32be-*|riscv64be-*) + tm_defines="${tm_defines} TARGET_BIG_ENDIAN_DEFAULT=1" + ;; + esac # Force .init_array support. The configure script cannot always # automatically detect that GAS supports it, yet we require it. gcc_cv_initfini_array=yes @@ -2500,6 +2510,11 @@ riscv*-*-freebsd*) tmake_file="${tmake_file} riscv/t-riscv" gnu_ld=yes gas=yes + case $target in + riscv32be-*|riscv64be-*) + tm_defines="${tm_defines} TARGET_BIG_ENDIAN_DEFAULT=1" + ;; + esac # Force .init_array support. The configure script cannot always # automatically detect that GAS supports it, yet we require it. gcc_cv_initfini_array=yes diff --git a/gcc/config/riscv/elf.h b/gcc/config/riscv/elf.h index 973efdaed7b..7e65e499031 100644 --- a/gcc/config/riscv/elf.h +++ b/gcc/config/riscv/elf.h @@ -18,7 +18,7 @@ along with GCC; see the file COPYING3. If not see . */ #define LINK_SPEC "\ --melf" XLEN_SPEC "lriscv \ +-melf" XLEN_SPEC DEFAULT_ENDIAN_SPEC "riscv \ %{mno-relax:--no-relax} \ %{mbig-endian:-EB} \ %{mlittle-endian:-EL} \ diff --git a/gcc/config/riscv/freebsd.h b/gcc/config/riscv/freebsd.h index f3aca9f7673..6018e7bb764 100644 --- a/gcc/config/riscv/freebsd.h +++ b/gcc/config/riscv/freebsd.h @@ -40,7 +40,7 @@ along with GCC; see the file COPYING3. If not see #undef LINK_SPEC #define LINK_SPEC " \ - -melf" XLEN_SPEC "lriscv \ + -melf" XLEN_SPEC DEFAULT_ENDIAN_SPEC "riscv \ %{p:%nconsider using `-pg' instead of `-p' with gprof (1)} \ %{v:-V} \ %{assert*} %{R*} %{rpath*} %{defsym*} \ diff --git a/gcc/config/riscv/linux.h b/gcc/config/riscv/linux.h index e74f5d3f914..fce5b896e6e 100644 --- a/gcc/config/riscv/linux.h +++ b/gcc/config/riscv/linux.h @@ -58,7 +58,7 @@ along with GCC; see the file COPYING3. If not see "%{mabi=ilp32:_ilp32}" #define LINK_SPEC "\ --melf" XLEN_SPEC "lriscv" LD_EMUL_SUFFIX " \ +-melf" XLEN_SPEC DEFAULT_ENDIAN_SPEC "riscv" LD_EMUL_SUFFIX " \ %{mno-relax:--no-relax} \ %{mbig-endian:-EB} \ %{mlittle-endian:-EL} \ diff --git a/gcc/config/riscv/riscv.c b/gcc/config/riscv/riscv.c index de8308c3af0..99b843867b5 100644 --- a/gcc/config/riscv/riscv.c +++ b/gcc/config/riscv/riscv.c @@ -5526,6 +5526,11 @@ riscv_asan_shadow_offset (void) #undef TARGET_ASAN_SHADOW_OFFSET #define TARGET_ASAN_SHADOW_OFFSET riscv_asan_shadow_offset +#ifdef TARGET_BIG_ENDIAN_DEFAULT +#undef TARGET_DEFAULT_TARGET_FLAGS +#define TARGET_DEFAULT_TARGET_FLAGS (MASK_BIG_ENDIAN) +#endif + struct gcc_target targetm = TARGET_INITIALIZER; #include "gt-riscv.h" diff --git a/gcc/config/riscv/riscv.h b/gcc/config/riscv/riscv.h index 0b667d2e8b9..3cc3e864a3e 100644 --- a/gcc/config/riscv/riscv.h +++ b/gcc/config/riscv/riscv.h @@ -30,6 +30,12 @@ along with GCC; see the file COPYING3. If not see /* Target CPU versions for D. */ #define TARGET_D_CPU_VERSIONS riscv_d_target_versions +#ifdef TARGET_BIG_ENDIAN_DEFAULT +#define DEFAULT_ENDIAN_SPEC "b" +#else +#define DEFAULT_ENDIAN_SPEC "l" +#endif + /* Default target_flags if no switches are specified */ #ifndef TARGET_DEFAULT