Re: [uClinux-dev] issue with flat binaries on sh2 big endian target

2017-02-09 Thread Waldemar Brodkorb 
Hi,

ping?

Any help is appreciated,
 Waldemar 

> Am 19.12.2016 um 20:42 schrieb Waldemar Brodkorb :
> 
> Hi,
> 
> I try to run a simple hello world program on a Numato Mimasv2
> FPGA board with J2 bitstream. It is a slightly modified sh2
> architecture.
> 
> See here for more information: http://j-core.org
> 
> The board is working fine with a musl FDPIC system.
> 
> I am trying to use a uClibc-ng (git master) toolchain with elf2flt
> (git a87f68ae9e879360a9624f2a02999e67cfbe5a2f is used) with
> a small patch attached, to recognize big endian.
> 
> Furthermore I am attaching the verbose elf2flt output while
> compiling the helloworld source code.
> 
> On bootup I get following after patching the 4.9 Linux kernel
> with the flat-debug patch (from an old discussion about ARM noMMU
> problems) and flthdr -k call on the binary:
> 
> [4.170119] binfmt_flat: Loading file: /sbin/init
> [4.196837] binfmt_flat: Mapping is 12168000, Entry point is 44,
> data_start is 1240
> [4.238923] binfmt_flat: Load /sbin/init: TEXT=12168040-12169240
> DATA=12169260-121693c4 BSS=121693c4-1216b410
> [4.298258] binfmt_flat: reloc[24] outside program 0xef50 (0
> - 0x33b0/0x1200), killing init!
> [4.351864] Failed to execute /sbin/init (error -8)
> 
> Any ideas what is wrong?
> 
> DOPIC is disabled in uClibc-ng config and I removed a -fpic in 
> gcc 6.2.0 so that libgcc isn't compiled as position independent
> code.
> 
> best regards
> Waldemar
> <0001-fix-sh2-toolchain-building.patch>
> 
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[uClinux-dev] issue with flat binaries on sh2 big endian target

2016-12-19 Thread Waldemar Brodkorb 
Hi,

I try to run a simple hello world program on a Numato Mimasv2
FPGA board with J2 bitstream. It is a slightly modified sh2
architecture.

See here for more information: http://j-core.org

The board is working fine with a musl FDPIC system.

I am trying to use a uClibc-ng (git master) toolchain with elf2flt
(git a87f68ae9e879360a9624f2a02999e67cfbe5a2f is used) with
a small patch attached, to recognize big endian.

Furthermore I am attaching the verbose elf2flt output while
compiling the helloworld source code.

On bootup I get following after patching the 4.9 Linux kernel
with the flat-debug patch (from an old discussion about ARM noMMU
problems) and flthdr -k call on the binary:

[4.170119] binfmt_flat: Loading file: /sbin/init
[4.196837] binfmt_flat: Mapping is 12168000, Entry point is 44,
data_start is 1240
[4.238923] binfmt_flat: Load /sbin/init: TEXT=12168040-12169240
DATA=12169260-121693c4 BSS=121693c4-1216b410
[4.298258] binfmt_flat: reloc[24] outside program 0xef50 (0
- 0x33b0/0x1200), killing init!
[4.351864] Failed to execute /sbin/init (error -8)

Any ideas what is wrong?

DOPIC is disabled in uClibc-ng config and I removed a -fpic in 
gcc 6.2.0 so that libgcc isn't compiled as position independent
code.

best regards
 Waldemar
>From 123fe2e98cce5c82d81d2a350529a1ea712a4058 Mon Sep 17 00:00:00 2001
From: Waldemar Brodkorb 
Date: Sat, 26 Mar 2016 10:26:56 +0100
Subject: [PATCH] fix sh2 toolchain building


Signed-off-by: Waldemar Brodkorb 
---
 elf2flt.c |   10 ++
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/elf2flt.c b/elf2flt.c
index 7d0e639..3546341 100644
--- a/elf2flt.c
+++ b/elf2flt.c
@@ -101,8 +101,10 @@ const char *elf2flt_progname;
 #define	ARCH	"sparc"
 #elif defined(TARGET_v850)
 #define	ARCH	"v850"
-#elif defined(TARGET_sh)
-#define	ARCH	"sh"
+#elif defined(TARGET_sh2)
+#define	ARCH	"sh2"
+#elif defined(TARGET_sh2eb)
+#define	ARCH	"sh2"
 #elif defined(TARGET_h8300)
 #define	ARCH	"h8300"
 #elif defined(TARGET_microblaze)
@@ -1260,7 +1262,7 @@ NIOS2_RELOC_ERR:
 #endif /* TARGET_sparc */
 
 
-#ifdef TARGET_sh
+#if defined(TARGET_sh2) || defined(TARGET_sh2eb)
 case R_SH_DIR32:
 	relocation_needed = 1;
 	sym_vma = bfd_section_vma(abs_bfd, sym_section);
@@ -1271,7 +1273,7 @@ NIOS2_RELOC_ERR:
 	sym_addr += sym_vma + q->addend;
 	sym_addr -= q->address;
 	break;
-#endif /* TARGET_sh */
+#endif /* TARGET_sh2 / TARGET_sh2eb */
 
 #ifdef TARGET_e1
 #define  htoe1l(x)  htonl(x)
-- 
1.7.10.4

TEXT -> vma=0x0 len=0x1200
DATA -> vma=0x1200 len=0x164
BSS  -> vma=0x1364 len=0x204c
SECTION: .text [0x116b1f0]: flags=0x11f vma=0x0
 RELOCS: .text [0x116b1f0]: flags=0x11f vma=0x0
  RELOC[0]: offset=0x24 symbol=main+0x0 section=.text size=18263848 fixup=0x150 
(reloc=0x24)
reloc[0] = 0x24
  RELOC[1]: offset=0x28 symbol=_init+0x0 section=.text size=18263848 
fixup=0x11ac (reloc=0x28)
reloc[1] = 0x28
  RELOC[2]: offset=0x2c symbol=_fini+0x0 section=.text size=18263848 
fixup=0x11dc (reloc=0x2c)
reloc[2] = 0x2c
  RELOC[3]: offset=0x30 symbol=__uClibc_main+0x0 section=.text size=18263848 
fixup=0x634 (reloc=0x30)
reloc[3] = 0x30
  RELOC[4]: offset=0x34 symbol=abort+0x0 section=.text size=18263848 
fixup=0x524 (reloc=0x34)
reloc[4] = 0x34
  RELOC[5]: offset=0x54 symbol=.tm_clone_table+0x0 section=.tm_clone_table 
size=18263848 fixup=0x1308 (reloc=0x54)
reloc[5] = 0x54
  RELOC[6]: offset=0x58 symbol=__TMC_END__+0x3 section=.tm_clone_table 
size=18263848 fixup=0x130b (reloc=0x58)
reloc[6] = 0x58
  RELOC[7]: offset=0x5c symbol=_ITM_deregisterTMCloneTable+0x0 section=*UND* 
size=18263848 fixup=0x0 (reloc=0x5c)
reloc[7] = 0x5c
  RELOC[8]: offset=0x88 symbol=.tm_clone_table+0x0 section=.tm_clone_table 
size=18263848 fixup=0x1308 (reloc=0x88)
reloc[8] = 0x88
  RELOC[9]: offset=0x8c symbol=__TMC_END__+0x0 section=.tm_clone_table 
size=18263848 fixup=0x1308 (reloc=0x8c)
reloc[9] = 0x8c
  RELOC[10]: offset=0x90 symbol=_ITM_registerTMCloneTable+0x0 section=*UND* 
size=18263848 fixup=0x0 (reloc=0x90)
reloc[10] = 0x90
  RELOC[11]: offset=0xf4 symbol=.bss+0x0 section=.bss size=18263848 
fixup=0x1364 (reloc=0xf4)
reloc[11] = 0xf4
  RELOC[12]: offset=0xf8 symbol=.data+0x100 section=.data size=18263848 
fixup=0x1300 (reloc=0xf8)
reloc[12] = 0xf8
  RELOC[13]: offset=0xfc symbol=__DTOR_END__+0x0 section=.data size=18263848 
fixup=0x1304 (reloc=0xfc)
reloc[13] = 0xfc
  RELOC[14]: offset=0x100 symbol=.bss+0x4 section=.bss size=18263848 
fixup=0x1368 (reloc=0x100)
reloc[14] = 0x100
  RELOC[15]: offset=0x104 symbol=.text+0x38 section=.text size=18263848 
fixup=0x38 (reloc=0x104)
reloc[15] = 0x104
  RELOC[16]: offset=0x108 symbol=__deregister_frame_info+0x0 section=*UND* 
size=18263848 fixup=0x0 (reloc=0x108)
reloc[16] = 0x108
  RELOC[17]: offset=0x10c symbol=.eh_frame+0x0 section=.eh_frame size=18263848 
fixup=0x1324 (reloc=0x10c)
reloc[17] = 0x10c
  RELOC[18]: offset=0x138 symbol=__register_frame_info+0x0