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From: Antony Pavlov <antonynpavlov@gmail.com>
To: Andrey Korolyov <andrey@xdel.ru>
Cc: barebox@lists.infradead.org
Subject: Re: [RFC v3 2/2] Add initial RISC-V architecture support
Date: Tue, 13 Dec 2016 23:48:49 +0300	[thread overview]
Message-ID: <20161213234849.0204a5537c12767ea2b1de41@gmail.com> (raw)
In-Reply-To: <CABYiri8yCVdtXtg7SN3OOW3h2X-bdtgJsr3VircCo-4fLTGg6Q@mail.gmail.com>

On Tue, 13 Dec 2016 20:02:41 +0300
Andrey Korolyov <andrey@xdel.ru> wrote:

> > +CONFIG_TEXT_BASE=0x80000000
> > +CONFIG_MEMORY_LAYOUT_FIXED=y
> > +CONFIG_STACK_BASE=0x807f0000
> > +CONFIG_STACK_SIZE=0x10000
> > +CONFIG_MALLOC_BASE=0x80800000
> 
> Due to changed offsets in e300/u500 configurations (as compared to v2-
> qemu config) linkage fails with binutils-2.25.1 and gcc-5.3.0:
> 
> arch/riscv/boot/built-in.o: In function `main_entry':
> /build/barebox/arch/riscv/boot/main_entry.c:34:(.text+0x0): relocation
> truncated to fit: R_RISCV_HI20 against symbol `__bss_start' defined in
> .bss section in barebox
> Makefile:756: recipe for target 'barebox' failed

You can fix the problem by explicitly selecting the 'Medium/Anywhere' gcc code model,
e.g.

--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -2,7 +2,7 @@ CPPFLAGS += -fno-strict-aliasing
 
 cflags-y += -fno-pic -pipe
 cflags-y += -Wall -Wmissing-prototypes -Wstrict-prototypes \
-	-Wno-uninitialized -Wno-format -Wno-main
+	-Wno-uninitialized -Wno-format -Wno-main -mcmodel=medany
 
 LDFLAGS += $(ldflags-y)
 LDFLAGS_barebox += -nostdlib


-- 
Best regards,
  Antony Pavlov

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      reply	other threads:[~2016-12-13 20:43 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-12  1:01 [RFC v3 0/2] add " Antony Pavlov
2016-12-12  1:01 ` [RFC v3 1/2] serial: add driver for SiFive UART Antony Pavlov
2016-12-12  1:01 ` [RFC v3 2/2] Add initial RISC-V architecture support Antony Pavlov
2016-12-13 17:02   ` Andrey Korolyov
2016-12-13 20:48     ` Antony Pavlov [this message]

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