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From: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
To: linux-sparse@vger.kernel.org
Cc: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Subject: [PATCH 3/3] riscv: add the predefines for the extensions
Date: Wed,  8 Jul 2020 23:48:09 +0200	[thread overview]
Message-ID: <20200708214810.56214-4-luc.vanoostenryck@gmail.com> (raw)
In-Reply-To: <20200708214810.56214-1-luc.vanoostenryck@gmail.com>

The RISC-V architecture has some predefined macros
to specify which extensions are supported.

So, now that these extensions are known via the '-march'
options, add the corresponding predefines.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
---
 target-riscv.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/target-riscv.c b/target-riscv.c
index 9431ebc9cabb..e7f2b03b821b 100644
--- a/target-riscv.c
+++ b/target-riscv.c
@@ -99,6 +99,25 @@ static void predefine_riscv(const struct target *self)
 	predefine("__riscv", 1, "1");
 	predefine("__riscv_xlen", 1, "%d", ptr_ctype.bit_size);
 
+	if (riscv_flags & RISCV_ATOMIC)
+		predefine("__riscv_atomic", 1, "1");
+	if (riscv_flags & RISCV_COMP)
+		predefine("__riscv_compressed", 1, "1");
+	if (riscv_flags & RISCV_DIV)
+		predefine("__riscv_div", 1, "1");
+	if (riscv_flags & RISCV_EMBD)
+		predefine("__riscv_32e", 1, "1");
+	if (riscv_flags & RISCV_FPU)
+		predefine("__riscv_flen", 1, "%d", (riscv_flags & RISCV_DOUBLE) ? 64 : 32);
+	if (riscv_flags & RISCV_FDIV)
+		predefine("__riscv_fdiv", 1, "1");
+	if (riscv_flags & RISCV_FDIV)
+		predefine("__riscv_fsqrt", 1, "1");
+	if (riscv_flags & RISCV_MUL)
+		predefine("__riscv_mul", 1, "1");
+	if ((riscv_flags & RISCV_MUL) && (riscv_flags & RISCV_DIV))
+		predefine("__riscv_muldiv", 1, "1");
+
 	if (cmodel)
 		predefine_strong("__riscv_cmodel_%s", cmodel);
 }
-- 
2.27.0


      parent reply	other threads:[~2020-07-08 21:48 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-08 21:48 [PATCH 0/3] teach sparse about the '-march' for RISC-V Luc Van Oostenryck
2020-07-08 21:48 ` [PATCH 1/3] arch: teach sparse about the '-march' option Luc Van Oostenryck
2020-07-08 21:48 ` [PATCH 2/3] riscv: parse '-march=....' Luc Van Oostenryck
2020-07-08 21:48 ` Luc Van Oostenryck [this message]

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