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| author | Anup Patel <anup.patel@wdc.com> | 2020-10-20 10:29:43 +0530 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2020-11-02 09:21:50 +0530 |
| commit | 914f81fbee28da409eac680ab3e76f1d5982c6e7 (patch) | |
| tree | a9302c40e5d61927ed6195719ad963dab3c87e2b /docs/platform | |
| parent | a809f406b97cdd699f49a977f031ae9c864fe5c3 (diff) | |
Makefile: Add option to use toolchain default ABI and ISA string
When PLATFORM_RISCV_ABI and PLATFORM_RISCV_ISA are not specified,
we force "-mabi=lp64 -march=rv64gc" for RV64 and force "-mabi=ilp32
-march=rv32gc" for RV32. This can prevent users from using the
toolchain default "-mabi" and "-march" options.
To allow using toolchain defaults, we add compile-time option
PLATFORM_RISCV_TOOLCHAIN_DEFAULT which when enabled forces the
top-level makefile to use toolchain default ABI and ISA string.
To enable the option, pass "PLATFORM_RISCV_TOOLCHAIN_DEFAULT=1"
to top-level make.
Reported-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'docs/platform')
0 files changed, 0 insertions, 0 deletions