diff options
| -rw-r--r-- | util/crossgcc/patches/gcc-11.4.0_rv32iafc.patch | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/util/crossgcc/patches/gcc-11.4.0_rv32iafc.patch b/util/crossgcc/patches/gcc-11.4.0_rv32iafc.patch new file mode 100644 index 0000000000..5b0d715c63 --- /dev/null +++ b/util/crossgcc/patches/gcc-11.4.0_rv32iafc.patch @@ -0,0 +1,55 @@ +From 88bc675eab98cea388daf40396686178ca5fcdb3 Mon Sep 17 00:00:00 2001 +From: Peter Marheine <pmarheine@chromium.org> +Date: Mon, 15 Aug 2022 11:01:50 +1000 +Subject: [PATCH] riscv: elf-multilib: add rv32iafc to defaults + +rv32iafc-ilp32 is compatible with rv32iac-ilp32 for library +implementation, so add a reuse rule allowing the default configuration +to support rv32iafc. + +-IAFC is an unusual configuration (much less common than -IMAFC), but +multilib reuse has essentially no cost: this change is useful to users +of platforms that support hardware floating-point but cannot use +hardware multiply/divide for any reason. To avoid generating a new set +of libraries this is limited to the soft-float ABI. + +Tested by verifying that `gcc -march=rv32iafc -mabi=ilp32 +--print-search-dirs` refers to the rv32iac/ilp32 library directory as +expected, rather than just the root library directory as occurs when an +unsupported target is selected (for instance, rv32id). + +Signed-off-by: Peter Marheine <pmarheine@chromium.org> +--- + gcc/config/riscv/t-elf-multilib | 6 ++++-- + 1 file changed, 4 insertions(+), 2 deletions(-) + +diff --git a/gcc/config/riscv/t-elf-multilib b/gcc/config/riscv/t-elf-multilib +index 19f9434616c..6e74b1811be 100644 +--- a/gcc/config/riscv/t-elf-multilib ++++ b/gcc/config/riscv/t-elf-multilib +@@ -1,11 +1,12 @@ + # This file was generated by multilib-generator with the command: +-# ./multilib-generator rv32i-ilp32--c rv32im-ilp32--c rv32iac-ilp32-- rv32imac-ilp32-- rv32imafc-ilp32f-rv32imafdc- rv64imac-lp64-- rv64imafdc-lp64d-- +-MULTILIB_OPTIONS = march=rv32i/march=rv32ic/march=rv32im/march=rv32imc/march=rv32iac/march=rv32imac/march=rv32imafc/march=rv32imafdc/march=rv32gc/march=rv64imac/march=rv64imafdc/march=rv64gc mabi=ilp32/mabi=ilp32f/mabi=lp64/mabi=lp64d ++# ./multilib-generator rv32i-ilp32--c rv32im-ilp32--c rv32iac-ilp32--f rv32imac-ilp32-- rv32imafc-ilp32f-rv32imafdc- rv64imac-lp64-- rv64imafdc-lp64d-- ++MULTILIB_OPTIONS = march=rv32i/march=rv32ic/march=rv32im/march=rv32imc/march=rv32iac/march=rv32iafc/march=rv32imac/march=rv32imafc/march=rv32imafdc/march=rv32gc/march=rv64imac/march=rv64imafdc/march=rv64gc mabi=ilp32/mabi=ilp32f/mabi=lp64/mabi=lp64d + MULTILIB_DIRNAMES = rv32i \ + rv32ic \ + rv32im \ + rv32imc \ + rv32iac \ ++rv32iafc \ + rv32imac \ + rv32imafc \ + rv32imafdc \ +@@ -25,6 +26,7 @@ march=rv64imac/mabi=lp64 \ + march=rv64imafdc/mabi=lp64d + MULTILIB_REUSE = march.rv32i/mabi.ilp32=march.rv32ic/mabi.ilp32 \ + march.rv32im/mabi.ilp32=march.rv32imc/mabi.ilp32 \ ++march.rv32iac/mabi.ilp32=march.rv32iafc/mabi.ilp32 \ + march.rv32imafc/mabi.ilp32f=march.rv32imafdc/mabi.ilp32f \ + march.rv32imafc/mabi.ilp32f=march.rv32gc/mabi.ilp32f \ + march.rv64imafdc/mabi.lp64d=march.rv64gc/mabi.lp64d +-- +2.37.1.595.g718a3a8f04-goog + |