From 9e7379fc1c2258e0b1b8b7f381e9c8b193358550 Mon Sep 17 00:00:00 2001
From: Edward Pierzchalski <ed.pierzchalski@data61.csiro.au>
Date: Thu, 14 Mar 2019 12:07:18 +1100
Subject: [PATCH] RISCV: avoid unsized arrays.
The C parser will fail to process an array variable if it isn't
eventually given a size. `trap_entry` is the symbol for an ASM
function that we don't explicitly call from C anyway, so we only need
the symbol to contain the relevant pointer value.
---
src/arch/riscv/kernel/boot.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/arch/riscv/kernel/boot.c b/src/arch/riscv/kernel/boot.c
index 5be50e007..f31c7c007 100644
--- a/src/arch/riscv/kernel/boot.c
+++ b/src/arch/riscv/kernel/boot.c
@@ -178,8 +178,10 @@ BOOT_CODE static void init_irqs(cap_t root_cnode_cap)
write_slot(SLOT_PTR(pptr_of_cap(root_cnode_cap), seL4_CapIRQControl), cap_irq_control_cap_new());
}
+/* ASM symbol for the CPU initialisation trap. */
+extern char trap_entry[1];
+
/* This and only this function initialises the CPU. It does NOT initialise any kernel state. */
-extern char trap_entry[];
BOOT_CODE static void init_cpu(void)
{
--
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