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sw-led: do not hardcode CC in makefile

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Stefan Tauner 2020-01-22 13:27:27 +01:00 • committed by Philipp Wagner
parent 43752a6c19
commit 07f288a961
2 changed files with 3 additions and 2 deletions
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3
examples/fpga/artya7-100/README.md
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@ -21,8 +21,9 @@ First the software must be built. Go into `examples/sw/led` and call:
make CC=/path/to/RISC-V-compiler
```
The setting of `CC` is only required if `riscv32-unknown-elf-gcc` is not available through the `PATH` environment variable.
The path to the RV32 compiler `/path/to/RISC-V-compiler` depends on the environment.
For example, it can be `riscv32-unknown-elf-gcc` if the binary is available through the `PATH` environment or `/opt/riscv/bin/riscv-none-embed-gcc` if a specific path is used.
For example, it can be for example `/opt/riscv/bin/riscv-none-embed-gcc` if the whole path is required or simply the name of the executable if it is available through the `PATH` environment variable.
This should produce a `led.vmem` file which is used in the synthesises to update the SRAM storage.

2
examples/sw/led/Makefile
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@ -10,7 +10,7 @@ ARCH = rv32imc
# ARCH = rv32im # to disable compressed instructions
SRCS = $(PROGRAM).c
CC = /tools/riscv/bin/riscv32-unknown-elf-gcc
CC = riscv32-unknown-elf-gcc
OBJCOPY ?= $(subst gcc,objcopy,$(wordlist 1,1,$(CC)))
OBJDUMP ?= $(subst gcc,objdump,$(wordlist 1,1,$(CC)))