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| author | Geng Qi <gengqi@linux.alibaba.com> | 2021-04-28 16:29:33 +0800 |
|---|---|---|
| committer | Jim Wilson <jimw@sifive.com> | 2021-04-29 19:23:54 -0700 |
| commit | 17f2908fcf058e145cff275966e34f8c7f57c2c5 (patch) | |
| tree | 663df7420413ccfb2a429fedb8aa9e68e4d5e2ea | |
| parent | 6efd040c301b06fae51657c8370ad940c5c3d513 (diff) | |
| download | gcc-17f2908fcf058e145cff275966e34f8c7f57c2c5.zip gcc-17f2908fcf058e145cff275966e34f8c7f57c2c5.tar.gz gcc-17f2908fcf058e145cff275966e34f8c7f57c2c5.tar.bz2 | |
RISC-V: For '-march' and '-mabi' options, add 'Negative' property mentions itself.
When use multi-lib riscv-tool-chain. A bug is triggered when there are two
'-march' at command line.
riscv64-unknown-elf-gcc -march=rv32gcp -mabi=ilp32f -march=rv32gcpzp64 HelloWorld.c
/lhome/gengq/riscv64-linux-ptest/lib/gcc/riscv64-unknown-elf/10.2.0/../../../../riscv64-unknown-elf/bin/ld: /lhome/gengq/riscv64-linux-ptest/lib/gcc/riscv64-unknown-elf/10.2.0/../../../../riscv64-unknown-elf/lib/crt0.o: ABI is incompatible with that of the selected emulation:
target emulation `elf64-littleriscv' does not match `elf32-littleriscv'
/lhome/gengq/riscv64-linux-ptest/lib/gcc/riscv64-unknown-elf/10.2.0/../../../../riscv64-unknown-elf/bin/ld: failed to merge target specific data of file /lhome/gengq/riscv64-linux-ptest/lib/gcc/riscv64-unknown-elf/10.2.0/../../../../riscv64-unknown-elf/lib/crt0.o
/lhome/gengq/riscv64-linux-ptest/lib/gcc/riscv64-unknown-elf/10.2.0/../../../../riscv64-unknown-elf/bin/ld: /lhome/gengq/riscv64-linux-ptest/lib/gcc/riscv64-unknown-elf/10.2.0/crtbegin.o: ABI is incompatible with that of the selected emulation:
target emulation `elf64-littleriscv' does not match `elf32-littleriscv'
/lhome/gengq/riscv64-linux-ptest/lib/gcc/riscv64-unknown-elf/10.2.0/../../../../riscv64-unknown-elf/bin/ld: failed to merge target specific data of file /lhome/gengq/riscv64-linux-ptest/lib/gcc/riscv64-unknown-elf/10.2.0/crtbegin.o
......
This patch fix it. And the DRIVER would prune the extra '-march' and '-mabi'
options and keep only the last one valid.
gcc/ChangeLog:
* config/riscv/riscv.opt (march=,mabi=): Negative itself.
| -rw-r--r-- | gcc/config/riscv/riscv.opt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/config/riscv/riscv.opt b/gcc/config/riscv/riscv.opt index e294e22..5ff85c2 100644 --- a/gcc/config/riscv/riscv.opt +++ b/gcc/config/riscv/riscv.opt @@ -38,7 +38,7 @@ Target Var(TARGET_PLT) Init(1) When generating -fpic code, allow the use of PLTs. Ignored for fno-pic. mabi= -Target RejectNegative Joined Enum(abi_type) Var(riscv_abi) Init(ABI_ILP32) +Target RejectNegative Joined Enum(abi_type) Var(riscv_abi) Init(ABI_ILP32) Negative(mabi=) Specify integer and floating-point calling convention. mpreferred-stack-boundary= @@ -79,7 +79,7 @@ Target Mask(DIV) Use hardware instructions for integer division. march= -Target RejectNegative Joined +Target RejectNegative Joined Negative(march=) -march= Generate code for given RISC-V ISA (e.g. RV64IM). ISA strings must be lower-case. |