barebox compilation with gcc 4.5.2 and ptxdist
Hello.
We are currently trying to compile a barebox with the git version of ptxdist and the git version of the OSELAS generic Toolchain for powerpc.
Also the current 2011.07.0 release of barebox.
We are having some problems during the build, which I think are a result of some changes in gcc's optimizations (since 4.4.something). GCC uses some functions on the ppc platform to optimze the size of the resulting binary, which are only present in the libgcc.a.
The compile stage works fine up tp the last linker step:
CC arch/ppc/lib/time.o AS arch/ppc/lib/misc.o CC arch/ppc/lib/ppclinux.o CC arch/ppc/lib/board_data.o LD arch/ppc/lib/built-in.o LD barebox
common/built-in.o: In function `mapset':
hush.c:(.text.mapset+0x44): undefined reference to _restgpr_30_x' common/built-in.o: In function syntax_err':
hush.c:(.text.syntax_err+0x34): undefined reference to _restgpr_30_x' common/built-in.o: In function done_command':
hush.c:(.text.done_command+0x94): undefined reference to _restgpr_29_x' common/built-in.o: In function done_pipe':
hush.c:(.text.done_pipe+0x5c): undefined reference to _restgpr_29_x' common/built-in.o: In function is_assignment':
hush.c:(.text.is_assignment+0x8c): undefined reference to _restgpr_27_x' common/built-in.o: In function b_addchr':
hush.c:(.text.b_addchr+0x8c): undefined reference to _restgpr_28_x' common/built-in.o: In function b_addqchr':
hush.c:(.text.b_addqchr+0x78): undefined reference to `_restgpr_29_x'
...
This goes on for a few pages.
As far as I can see, the possibilities I have here, is to either integrate the missing functions out of the gcc sources into barebox, or make barebox link with libgcc, which seems surprisingly difficult, due to the unfamiliar (to me) build process. A simple LDFLAGS_barebox+=-l.. -L.. did not help here.
Am I right with this assumption, or am I missing something else here?
Any help would really be appreciated.
Regards
Andre Naujoks
_______________________________________________
barebox mailing list
[email protected]
http://lists.infradead.org/mailman/listinfo/barebox
Quoted 39 lines · Andre Naujoks
Hello.
We are currently trying to compile a barebox with the git version of ptxdist and the git version of the OSELAS generic Toolchain for powerpc.
Also the current 2011.07.0 release of barebox.
We are having some problems during the build, which I think are a result of some changes in gcc's optimizations (since 4.4.something). GCC uses some functions on the ppc platform to optimze the size of the resulting binary, which are only present in the libgcc.a.
The compile stage works fine up tp the last linker step:
CC arch/ppc/lib/time.o AS arch/ppc/lib/misc.o CC arch/ppc/lib/ppclinux.o CC arch/ppc/lib/board_data.o LD arch/ppc/lib/built-in.o LD barebox
common/built-in.o: In function `mapset':
hush.c:(.text.mapset+0x44): undefined reference to_restgpr_30_x' common/built-in.o: In functionsyntax_err':
hush.c:(.text.syntax_err+0x34): undefined reference to_restgpr_30_x' common/built-in.o: In functiondone_command':
hush.c:(.text.done_command+0x94): undefined reference to_restgpr_29_x' common/built-in.o: In functiondone_pipe':
hush.c:(.text.done_pipe+0x5c): undefined reference to_restgpr_29_x' common/built-in.o: In functionis_assignment':
hush.c:(.text.is_assignment+0x8c): undefined reference to_restgpr_27_x' common/built-in.o: In functionb_addchr':
hush.c:(.text.b_addchr+0x8c): undefined reference to_restgpr_28_x' common/built-in.o: In functionb_addqchr':
hush.c:(.text.b_addqchr+0x78): undefined reference to `_restgpr_29_x'
...This goes on for a few pages.
Quoted 7 lines
As far as I can see, the possibilities I have here, is to either integrate the missing functions out of the gcc sources into barebox, or make barebox link with libgcc, which seems surprisingly difficult, due to the unfamiliar (to me) build process. A simple LDFLAGS_barebox+=-l.. -L.. did not help here.
Am I right with this assumption, or am I missing something else here?
We don't want to link barebox against libgcc, that's bad style. I suggest to port arch/powerpc/lib/crtsavres.S from the linux kernel to barebox.
cheers, Marc
Signature · 4 lines
Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
_______________________________________________
barebox mailing list
[email protected]
http://lists.infradead.org/mailman/listinfo/barebox
Quoted 46 lines · Marc Kleine-Budde
Quoted 45 lines · Andre Naujoks
Hello.
We are currently trying to compile a barebox with the git version of ptxdist and the git version of the OSELAS generic Toolchain for powerpc.
Also the current 2011.07.0 release of barebox.
We are having some problems during the build, which I think are a result of some changes in gcc's optimizations (since 4.4.something). GCC uses some functions on the ppc platform to optimze the size of the resulting binary, which are only present in the libgcc.a.
The compile stage works fine up tp the last linker step:
CC arch/ppc/lib/time.o AS arch/ppc/lib/misc.o CC arch/ppc/lib/ppclinux.o CC arch/ppc/lib/board_data.o LD arch/ppc/lib/built-in.o LD barebox
common/built-in.o: In function `mapset':
hush.c:(.text.mapset+0x44): undefined reference to_restgpr_30_x' common/built-in.o: In functionsyntax_err':
hush.c:(.text.syntax_err+0x34): undefined reference to_restgpr_30_x' common/built-in.o: In functiondone_command':
hush.c:(.text.done_command+0x94): undefined reference to_restgpr_29_x' common/built-in.o: In functiondone_pipe':
hush.c:(.text.done_pipe+0x5c): undefined reference to_restgpr_29_x' common/built-in.o: In functionis_assignment':
hush.c:(.text.is_assignment+0x8c): undefined reference to_restgpr_27_x' common/built-in.o: In functionb_addchr':
hush.c:(.text.b_addchr+0x8c): undefined reference to_restgpr_28_x' common/built-in.o: In functionb_addqchr':
hush.c:(.text.b_addqchr+0x78): undefined reference to `_restgpr_29_x'
...This goes on for a few pages.
As far as I can see, the possibilities I have here, is to either integrate the missing functions out of the gcc sources into barebox, or make barebox link with libgcc, which seems surprisingly difficult, due to the unfamiliar (to me) build process. A simple LDFLAGS_barebox+=-l.. -L.. did not help here.
Quoted 6 lines
Quoted 1 line
Am I right with this assumption, or am I missing something else here?
We don't want to link barebox against libgcc, that's bad style. I suggest to port
arch/powerpc/lib/crtsavres.Sfrom the linux kernel to barebox.
agreed at 100%
Best Regards,
J.
_______________________________________________
barebox mailing list
[email protected]
http://lists.infradead.org/mailman/listinfo/barebox
Am 26.07.2011 16:20, schrieb Marc Kleine-Budde:
Quoted 46 lines · Andre Naujoks
Quoted 45 lines
Hello.
We are currently trying to compile a barebox with the git version of ptxdist and the git version of the OSELAS generic Toolchain for powerpc.
Also the current 2011.07.0 release of barebox.
We are having some problems during the build, which I think are a result of some changes in gcc's optimizations (since 4.4.something). GCC uses some functions on the ppc platform to optimze the size of the resulting binary, which are only present in the libgcc.a.
The compile stage works fine up tp the last linker step:
CC arch/ppc/lib/time.o AS arch/ppc/lib/misc.o CC arch/ppc/lib/ppclinux.o CC arch/ppc/lib/board_data.o LD arch/ppc/lib/built-in.o LD barebox
common/built-in.o: In function `mapset':
hush.c:(.text.mapset+0x44): undefined reference to_restgpr_30_x' common/built-in.o: In functionsyntax_err':
hush.c:(.text.syntax_err+0x34): undefined reference to_restgpr_30_x' common/built-in.o: In functiondone_command':
hush.c:(.text.done_command+0x94): undefined reference to_restgpr_29_x' common/built-in.o: In functiondone_pipe':
hush.c:(.text.done_pipe+0x5c): undefined reference to_restgpr_29_x' common/built-in.o: In functionis_assignment':
hush.c:(.text.is_assignment+0x8c): undefined reference to_restgpr_27_x' common/built-in.o: In functionb_addchr':
hush.c:(.text.b_addchr+0x8c): undefined reference to_restgpr_28_x' common/built-in.o: In functionb_addqchr':
hush.c:(.text.b_addqchr+0x78): undefined reference to `_restgpr_29_x'
...This goes on for a few pages.
As far as I can see, the possibilities I have here, is to either integrate the missing functions out of the gcc sources into barebox, or make barebox link with libgcc, which seems surprisingly difficult, due to the unfamiliar (to me) build process. A simple LDFLAGS_barebox+=-l.. -L.. did not help here.
Quoted 5 lines
Quoted 1 line
Am I right with this assumption, or am I missing something else here?
We don't want to link barebox against libgcc, that's bad style. I suggest to port
arch/powerpc/lib/crtsavres.Sfrom the linux kernel to barebox.
Thanks. I will give this a shot and see how far I get. If it works I will come back with a patch.
Quoted 3 lines
cheers, Marc
Regards
Andre
_______________________________________________
barebox mailing list
[email protected]
http://lists.infradead.org/mailman/listinfo/barebox
Am 27.07.2011 08:40, schrieb Andre Naujoks:
Quoted 47 lines
Am 26.07.2011 16:20, schrieb Marc Kleine-Budde:
Quoted 46 lines · Andre Naujoks
Quoted 45 lines
Hello.
We are currently trying to compile a barebox with the git version of ptxdist and the git version of the OSELAS generic Toolchain for powerpc.
Also the current 2011.07.0 release of barebox.
We are having some problems during the build, which I think are a result of some changes in gcc's optimizations (since 4.4.something). GCC uses some functions on the ppc platform to optimze the size of the resulting binary, which are only present in the libgcc.a.
The compile stage works fine up tp the last linker step:
CC arch/ppc/lib/time.o AS arch/ppc/lib/misc.o CC arch/ppc/lib/ppclinux.o CC arch/ppc/lib/board_data.o LD arch/ppc/lib/built-in.o LD barebox
common/built-in.o: In function `mapset':
hush.c:(.text.mapset+0x44): undefined reference to_restgpr_30_x' common/built-in.o: In functionsyntax_err':
hush.c:(.text.syntax_err+0x34): undefined reference to_restgpr_30_x' common/built-in.o: In functiondone_command':
hush.c:(.text.done_command+0x94): undefined reference to_restgpr_29_x' common/built-in.o: In functiondone_pipe':
hush.c:(.text.done_pipe+0x5c): undefined reference to_restgpr_29_x' common/built-in.o: In functionis_assignment':
hush.c:(.text.is_assignment+0x8c): undefined reference to_restgpr_27_x' common/built-in.o: In functionb_addchr':
hush.c:(.text.b_addchr+0x8c): undefined reference to_restgpr_28_x' common/built-in.o: In functionb_addqchr':
hush.c:(.text.b_addqchr+0x78): undefined reference to `_restgpr_29_x'
...This goes on for a few pages.
As far as I can see, the possibilities I have here, is to either integrate the missing functions out of the gcc sources into barebox, or make barebox link with libgcc, which seems surprisingly difficult, due to the unfamiliar (to me) build process. A simple LDFLAGS_barebox+=-l.. -L.. did not help here.
Quoted 8 lines
Quoted 5 lines
Quoted 1 line
Am I right with this assumption, or am I missing something else here?
We don't want to link barebox against libgcc, that's bad style. I suggest to port
arch/powerpc/lib/crtsavres.Sfrom the linux kernel to barebox.Thanks. I will give this a shot and see how far I get. If it works I will come back with a patch.
Hi.
With a little help from a collegue, we came up with the patches in the followong mails. Basically the kernel files without the 64 bit parts.
The second patch was another part of libgcc, which seemed to fit best in the misc.S file, which was already present.
Regards
Andre
Quoted 7 lines
Quoted 4 lines
cheers, Marc
Regards
Andre
_______________________________________________
barebox mailing list
[email protected]
http://lists.infradead.org/mailman/listinfo/barebox
From c479527616c5fc79c608e21573373a5a324f6e9b Mon Sep 17 00:00:00 2001
From: Andre Naujoks <[email protected]>
Date: Wed, 27 Jul 2011 11:28:35 +0200
Subject: [PATCH 1/2] Ported crtsavres from linux kernel to barebox
--- arch/ppc/lib/Makefile | 1 + arch/ppc/lib/crtsavres.S | 239 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 240 insertions(+), 0 deletions(-) create mode 100644 arch/ppc/lib/crtsavres.S
arch/ppc/lib/Makefile +1 -0
@@ -10,4 +10,5 @@ obj-y += misc.o obj-$(CONFIG_CMD_BOOTM) += ppclinux.o obj-y += board_data.o obj-$(CONFIG_MODULES) += module.o +obj-y += crtsavres.o
arch/ppc/lib/crtsavres.S new file +4 -0
@@ -0,0 +1,239 @@ +/* + * Special support for eabi and SVR4 + * + * Copyright (C) 1995, 1996, 1998, 2000, 2001 Free Software
Foundation, Inc.
+ * Copyright 2008 Freescale Semiconductor, Inc.
+ * Written By Michael Meissner
+ *
+ * Based on gcc/config/rs6000/crtsavres.asm from gcc
+ * 64 bit additions from reading the PPC elf64abi document.
+ *
+ * This file is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * In addition to the permissions in the GNU General Public License, the
+ * Free Software Foundation gives you unlimited permission to link the
+ * compiled version of this file with other programs, and to distribute
+ * those programs without any restriction coming from the use of this
+ * file. (The General Public License restrictions do apply in other
+ * respects; for example, they cover modification of the file, and
+ * distribution when not linked into another program.)
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * As a special exception, if you link this library with files + * compiled with GCC to produce an executable, this does not cause + * the resulting executable to be covered by the GNU General Public
License.
+ * This exception does not however invalidate any other reasons why
+ * the executable file might be covered by the GNU General Public
License.
+ */
+
+#include <asm/ppc_asm.tmpl>
+
+#define N_FUN 36
+
+#define __stringify_1(x...) #x
+#define __stringify(x...) __stringify_1(x)
+
+#define _GLOBAL(n) \
+ .text; \
+ .stabs __stringify(n:F-1),N_FUN,0,0,n;\
+ .globl n; \
+n:
+
+ .file "crtsavres.S"
+ .section ".text"
+
+/* Routines for saving integer registers, called by the compiler. */ +/* Called with r11 pointing to the stack header word of the caller of the */
+/* function, just beyond the end of the integer save area. */ +
+_GLOBAL(_savegpr_14)
+_GLOBAL(_save32gpr_14)
+ stw 14,-72(11) /* save gp registers */
+_GLOBAL(_savegpr_15)
+_GLOBAL(_save32gpr_15)
+ stw 15,-68(11)
+_GLOBAL(_savegpr_16)
+_GLOBAL(_save32gpr_16)
+ stw 16,-64(11)
+_GLOBAL(_savegpr_17)
+_GLOBAL(_save32gpr_17)
+ stw 17,-60(11)
+_GLOBAL(_savegpr_18)
+_GLOBAL(_save32gpr_18)
+ stw 18,-56(11)
+_GLOBAL(_savegpr_19)
+_GLOBAL(_save32gpr_19)
+ stw 19,-52(11)
+_GLOBAL(_savegpr_20)
+_GLOBAL(_save32gpr_20)
+ stw 20,-48(11)
+_GLOBAL(_savegpr_21)
+_GLOBAL(_save32gpr_21)
+ stw 21,-44(11)
+_GLOBAL(_savegpr_22)
+_GLOBAL(_save32gpr_22)
+ stw 22,-40(11)
+_GLOBAL(_savegpr_23)
+_GLOBAL(_save32gpr_23)
+ stw 23,-36(11)
+_GLOBAL(_savegpr_24)
+_GLOBAL(_save32gpr_24)
+ stw 24,-32(11)
+_GLOBAL(_savegpr_25)
+_GLOBAL(_save32gpr_25)
+ stw 25,-28(11)
+_GLOBAL(_savegpr_26)
+_GLOBAL(_save32gpr_26)
+ stw 26,-24(11)
+_GLOBAL(_savegpr_27)
+_GLOBAL(_save32gpr_27)
+ stw 27,-20(11)
+_GLOBAL(_savegpr_28)
+_GLOBAL(_save32gpr_28)
+ stw 28,-16(11)
+_GLOBAL(_savegpr_29)
+_GLOBAL(_save32gpr_29)
+ stw 29,-12(11)
+_GLOBAL(_savegpr_30)
+_GLOBAL(_save32gpr_30)
+ stw 30,-8(11)
+_GLOBAL(_savegpr_31)
+_GLOBAL(_save32gpr_31)
+ stw 31,-4(11)
+ blr
+
+/* Routines for restoring integer registers, called by the compiler. */ +/* Called with r11 pointing to the stack header word of the caller of the */
+/* function, just beyond the end of the integer restore area. */ +
+_GLOBAL(_restgpr_14)
+_GLOBAL(_rest32gpr_14)
+ lwz 14,-72(11) /* restore gp registers */
+_GLOBAL(_restgpr_15)
+_GLOBAL(_rest32gpr_15)
+ lwz 15,-68(11)
+_GLOBAL(_restgpr_16)
+_GLOBAL(_rest32gpr_16)
+ lwz 16,-64(11)
+_GLOBAL(_restgpr_17)
+_GLOBAL(_rest32gpr_17)
+ lwz 17,-60(11)
+_GLOBAL(_restgpr_18)
+_GLOBAL(_rest32gpr_18)
+ lwz 18,-56(11)
+_GLOBAL(_restgpr_19)
+_GLOBAL(_rest32gpr_19)
+ lwz 19,-52(11)
+_GLOBAL(_restgpr_20)
+_GLOBAL(_rest32gpr_20)
+ lwz 20,-48(11)
+_GLOBAL(_restgpr_21)
+_GLOBAL(_rest32gpr_21)
+ lwz 21,-44(11)
+_GLOBAL(_restgpr_22)
+_GLOBAL(_rest32gpr_22)
+ lwz 22,-40(11)
+_GLOBAL(_restgpr_23)
+_GLOBAL(_rest32gpr_23)
+ lwz 23,-36(11)
+_GLOBAL(_restgpr_24)
+_GLOBAL(_rest32gpr_24)
+ lwz 24,-32(11)
+_GLOBAL(_restgpr_25)
+_GLOBAL(_rest32gpr_25)
+ lwz 25,-28(11)
+_GLOBAL(_restgpr_26)
+_GLOBAL(_rest32gpr_26)
+ lwz 26,-24(11)
+_GLOBAL(_restgpr_27)
+_GLOBAL(_rest32gpr_27)
+ lwz 27,-20(11)
+_GLOBAL(_restgpr_28)
+_GLOBAL(_rest32gpr_28)
+ lwz 28,-16(11)
+_GLOBAL(_restgpr_29)
+_GLOBAL(_rest32gpr_29)
+ lwz 29,-12(11)
+_GLOBAL(_restgpr_30)
+_GLOBAL(_rest32gpr_30)
+ lwz 30,-8(11)
+_GLOBAL(_restgpr_31)
+_GLOBAL(_rest32gpr_31)
+ lwz 31,-4(11)
+ blr
+
+/* Routines for restoring integer registers, called by the compiler. */ +/* Called with r11 pointing to the stack header word of the caller of the */
+/* function, just beyond the end of the integer restore area. */ +
+_GLOBAL(_restgpr_14_x)
+_GLOBAL(_rest32gpr_14_x)
+ lwz 14,-72(11) /* restore gp registers */
+_GLOBAL(_restgpr_15_x)
+_GLOBAL(_rest32gpr_15_x)
+ lwz 15,-68(11)
+_GLOBAL(_restgpr_16_x)
+_GLOBAL(_rest32gpr_16_x)
+ lwz 16,-64(11)
+_GLOBAL(_restgpr_17_x)
+_GLOBAL(_rest32gpr_17_x)
+ lwz 17,-60(11)
+_GLOBAL(_restgpr_18_x)
+_GLOBAL(_rest32gpr_18_x)
+ lwz 18,-56(11)
+_GLOBAL(_restgpr_19_x)
+_GLOBAL(_rest32gpr_19_x)
+ lwz 19,-52(11)
+_GLOBAL(_restgpr_20_x)
+_GLOBAL(_rest32gpr_20_x)
+ lwz 20,-48(11)
+_GLOBAL(_restgpr_21_x)
+_GLOBAL(_rest32gpr_21_x)
+ lwz 21,-44(11)
+_GLOBAL(_restgpr_22_x)
+_GLOBAL(_rest32gpr_22_x)
+ lwz 22,-40(11)
+_GLOBAL(_restgpr_23_x)
+_GLOBAL(_rest32gpr_23_x)
+ lwz 23,-36(11)
+_GLOBAL(_restgpr_24_x)
+_GLOBAL(_rest32gpr_24_x)
+ lwz 24,-32(11)
+_GLOBAL(_restgpr_25_x)
+_GLOBAL(_rest32gpr_25_x)
+ lwz 25,-28(11)
+_GLOBAL(_restgpr_26_x)
+_GLOBAL(_rest32gpr_26_x)
+ lwz 26,-24(11)
+_GLOBAL(_restgpr_27_x)
+_GLOBAL(_rest32gpr_27_x)
+ lwz 27,-20(11)
+_GLOBAL(_restgpr_28_x)
+_GLOBAL(_rest32gpr_28_x)
+ lwz 28,-16(11)
+_GLOBAL(_restgpr_29_x)
+_GLOBAL(_rest32gpr_29_x)
+ lwz 29,-12(11)
+_GLOBAL(_restgpr_30_x)
+_GLOBAL(_rest32gpr_30_x)
+ lwz 30,-8(11)
+_GLOBAL(_restgpr_31_x)
+_GLOBAL(_rest32gpr_31_x)
+ lwz 0,4(11)
+ lwz 31,-4(11)
+ mtlr 0
+ mr 1,11
+ blr
+
Signature · 8 lines
1.7.5.3 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
Sorry. line wrap was on in the first one.
From c479527616c5fc79c608e21573373a5a324f6e9b Mon Sep 17 00:00:00 2001
From: Andre Naujoks <[email protected]>
Date: Wed, 27 Jul 2011 11:28:35 +0200
Subject: [PATCH 1/2] Ported crtsavres from linux kernel to barebox
--- arch/ppc/lib/Makefile | 1 + arch/ppc/lib/crtsavres.S | 239 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 240 insertions(+), 0 deletions(-) create mode 100644 arch/ppc/lib/crtsavres.S
arch/ppc/lib/Makefile +1 -0
@@ -10,4 +10,5 @@ obj-y += misc.o obj-$(CONFIG_CMD_BOOTM) += ppclinux.o obj-y += board_data.o obj-$(CONFIG_MODULES) += module.o +obj-y += crtsavres.o
arch/ppc/lib/crtsavres.S new file +239 -0
239 lines not on this page · raw message
Signature · 8 lines
1.7.5.3 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
From 9b3985045da1161a934cba48749fe1759e62dae6 Mon Sep 17 00:00:00 2001
From: Andre Naujoks <[email protected]>
Date: Wed, 27 Jul 2011 11:29:43 +0200
Subject: [PATCH 2/2] Ported ppc ashrdi3 from linux kernel
--- arch/ppc/lib/misc.S | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-)
arch/ppc/lib/misc.S +14 -0
@@ -2,6 +2,20 @@ #include <asm/ppc_asm.tmpl> #include <asm-generic/errno.h> + .globl __ashrdi3 +__ashrdi3: + subfic r6,r5,32 + srw r4,r4,r5 # LSW = count > 31 ? 0 : LSW >> count + addi r7,r5,32 # could be xori, or addi with -32 + slw r6,r3,r6 # t1 = count > 31 ? 0 : MSW << (32-count) + rlwinm r8,r7,0,32 # t3 = (count < 32) ? 32 : 0 + sraw r7,r3,r7 # t2 = MSW >> (count-32) + or r4,r4,r6 # LSW |= t1 + slw r7,r7,r8 # t2 = (count < 32) ? 0 : t2 + sraw r3,r3,r5 # MSW = MSW >> count + or r4,r4,r7 # LSW |= t2 + blr + .globl __ashldi3 __ashldi3: subfic r6,r5,32
Signature · 8 lines
1.7.5.3 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
Sascha Hauer
AppliedQuoted 57 lines · Andre Naujoks
Am 27.07.2011 08:40, schrieb Andre Naujoks:
Quoted 47 lines
Am 26.07.2011 16:20, schrieb Marc Kleine-Budde:
Quoted 46 lines · Andre Naujoks
Quoted 45 lines
Hello.
We are currently trying to compile a barebox with the git version of ptxdist and the git version of the OSELAS generic Toolchain for powerpc.
Also the current 2011.07.0 release of barebox.
We are having some problems during the build, which I think are a result of some changes in gcc's optimizations (since 4.4.something). GCC uses some functions on the ppc platform to optimze the size of the resulting binary, which are only present in the libgcc.a.
The compile stage works fine up tp the last linker step:
CC arch/ppc/lib/time.o AS arch/ppc/lib/misc.o CC arch/ppc/lib/ppclinux.o CC arch/ppc/lib/board_data.o LD arch/ppc/lib/built-in.o LD barebox
common/built-in.o: In function `mapset':
hush.c:(.text.mapset+0x44): undefined reference to_restgpr_30_x' common/built-in.o: In functionsyntax_err':
hush.c:(.text.syntax_err+0x34): undefined reference to_restgpr_30_x' common/built-in.o: In functiondone_command':
hush.c:(.text.done_command+0x94): undefined reference to_restgpr_29_x' common/built-in.o: In functiondone_pipe':
hush.c:(.text.done_pipe+0x5c): undefined reference to_restgpr_29_x' common/built-in.o: In functionis_assignment':
hush.c:(.text.is_assignment+0x8c): undefined reference to_restgpr_27_x' common/built-in.o: In functionb_addchr':
hush.c:(.text.b_addchr+0x8c): undefined reference to_restgpr_28_x' common/built-in.o: In functionb_addqchr':
hush.c:(.text.b_addqchr+0x78): undefined reference to `_restgpr_29_x'
...This goes on for a few pages.
As far as I can see, the possibilities I have here, is to either integrate the missing functions out of the gcc sources into barebox, or make barebox link with libgcc, which seems surprisingly difficult, due to the unfamiliar (to me) build process. A simple LDFLAGS_barebox+=-l.. -L.. did not help here.
Quoted 8 lines
Quoted 5 lines
Quoted 1 line
Am I right with this assumption, or am I missing something else here?
We don't want to link barebox against libgcc, that's bad style. I suggest to port
arch/powerpc/lib/crtsavres.Sfrom the linux kernel to barebox.Thanks. I will give this a shot and see how far I get. If it works I will come back with a patch.
Quoted 7 lines
Hi.
With a little help from a collegue, we came up with the patches in the followong mails. Basically the kernel files without the 64 bit parts.
The second patch was another part of libgcc, which seemed to fit best in the
misc.Sfile, which was already present.
Applied to -master.
Thanks
Sascha
Signature · 9 lines
Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
Am 28.07.2011 13:52, schrieb Sascha Hauer:
Quoted 60 lines · Andre Naujoks
Quoted 59 lines
Am 27.07.2011 08:40, schrieb Andre Naujoks:
Quoted 47 lines
Am 26.07.2011 16:20, schrieb Marc Kleine-Budde:
Quoted 46 lines · Andre Naujoks
Quoted 45 lines
Hello.
We are currently trying to compile a barebox with the git version of ptxdist and the git version of the OSELAS generic Toolchain for powerpc.
Also the current 2011.07.0 release of barebox.
We are having some problems during the build, which I think are a result of some changes in gcc's optimizations (since 4.4.something). GCC uses some functions on the ppc platform to optimze the size of the resulting binary, which are only present in the libgcc.a.
The compile stage works fine up tp the last linker step:
CC arch/ppc/lib/time.o AS arch/ppc/lib/misc.o CC arch/ppc/lib/ppclinux.o CC arch/ppc/lib/board_data.o LD arch/ppc/lib/built-in.o LD barebox
common/built-in.o: In function `mapset':
hush.c:(.text.mapset+0x44): undefined reference to_restgpr_30_x' common/built-in.o: In functionsyntax_err':
hush.c:(.text.syntax_err+0x34): undefined reference to_restgpr_30_x' common/built-in.o: In functiondone_command':
hush.c:(.text.done_command+0x94): undefined reference to_restgpr_29_x' common/built-in.o: In functiondone_pipe':
hush.c:(.text.done_pipe+0x5c): undefined reference to_restgpr_29_x' common/built-in.o: In functionis_assignment':
hush.c:(.text.is_assignment+0x8c): undefined reference to_restgpr_27_x' common/built-in.o: In functionb_addchr':
hush.c:(.text.b_addchr+0x8c): undefined reference to_restgpr_28_x' common/built-in.o: In functionb_addqchr':
hush.c:(.text.b_addqchr+0x78): undefined reference to `_restgpr_29_x'
...This goes on for a few pages.
As far as I can see, the possibilities I have here, is to either integrate the missing functions out of the gcc sources into barebox, or make barebox link with libgcc, which seems surprisingly difficult, due to the unfamiliar (to me) build process. A simple LDFLAGS_barebox+=-l.. -L.. did not help here.
Quoted 8 lines
Quoted 5 lines
Quoted 1 line
Am I right with this assumption, or am I missing something else here?
We don't want to link barebox against libgcc, that's bad style. I suggest to port
arch/powerpc/lib/crtsavres.Sfrom the linux kernel to barebox.Thanks. I will give this a shot and see how far I get. If it works I will come back with a patch.
Hi.
Quoted 7 lines
Quoted 5 lines
With a little help from a collegue, we came up with the patches in the followong mails. Basically the kernel files without the 64 bit parts.
The second patch was another part of libgcc, which seemed to fit best in the
misc.Sfile, which was already present.Applied to -master.
Thats great. Thanks!
Andre
Quoted 4 lines
Thanks
Sascha
_______________________________________________
barebox mailing list
[email protected]
http://lists.infradead.org/mailman/listinfo/barebox