* [PATCH 02/12] kbuild: add pre-bootloader (pbl) target
2012-08-03 10:25 ` [PATCH 01/12] Makefile.clean: include Makefiles again Jean-Christophe PLAGNIOL-VILLARD
@ 2012-08-03 10:25 ` Jean-Christophe PLAGNIOL-VILLARD
2012-08-03 10:25 ` [PATCH 03/12] Add pre-bootloader (pbl) image support Jean-Christophe PLAGNIOL-VILLARD
` (9 subsequent siblings)
10 siblings, 0 replies; 16+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-08-03 10:25 UTC (permalink / raw)
To: barebox
This will allow to link compiled object to the built-in-pbl.o across the source
tree that will be finally link to the pbl.
Now we compile the source %.c in pbl-%.o and provide -D__PBL__
so we can known in the source when it's compile for barebox or the pbl.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
Makefile | 5 ++++-
scripts/Makefile.build | 48 +++++++++++++++++++++++++++++++++++++++++++++---
scripts/Makefile.lib | 14 ++++++++++++++
3 files changed, 63 insertions(+), 4 deletions(-)
diff --git a/Makefile b/Makefile
index 969afbb..ca47cb1 100644
--- a/Makefile
+++ b/Makefile
@@ -481,6 +481,7 @@ barebox-alldirs := $(sort $(barebox-dirs) $(patsubst %/,%,$(filter %/, \
$(core-n) $(core-) $(drivers-n) $(drivers-) \
$(net-n) $(net-) $(libs-n) $(libs-))))
+pbl-common-y := $(patsubst %/, %/built-in-pbl.o, $(common-y))
common-y := $(patsubst %/, %/built-in.o, $(common-y))
# Build barebox
@@ -510,6 +511,8 @@ common-y := $(patsubst %/, %/built-in.o, $(common-y))
# System.map is generated to document addresses of all kernel symbols
barebox-common := $(common-y)
+barebox-pbl-common := $(pbl-common-y)
+export barebox-pbl-common
barebox-all := $(barebox-common)
barebox-lds := $(lds-y)
@@ -714,7 +717,7 @@ barebox.srec: barebox
# The actual objects are generated when descending,
# make sure no implicit rule kicks in
-$(sort $(barebox-head) $(barebox-common) ) $(barebox-lds): $(barebox-dirs) ;
+$(sort $(barebox-head) $(barebox-common) ) $(barebox-lds) $(barebox-pbl-common): $(barebox-dirs) ;
# Handle descending into subdirectories listed in $(barebox-dirs)
# Preset locale variables to speed up the build process. Limit locale
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 1a82c44..e5b7779 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -14,6 +14,7 @@ obj-y :=
obj-m :=
lib-y :=
lib-m :=
+pbl-y :=
always :=
targets :=
subdir-y :=
@@ -97,13 +98,19 @@ ifneq ($(strip $(lib-y) $(lib-m) $(lib-n) $(lib-)),)
lib-target := $(obj)/lib.a
endif
-ifneq ($(strip $(obj-y) $(obj-m) $(obj-n) $(obj-) $(lib-target)),)
+ifneq ($(strip $(obj-y) $(obj-m) $(obj-n) $(obj-) $(lib-target) $(pbl-y)),)
builtin-target := $(obj)/built-in.o
endif
+ifeq ($(CONFIG_PBL_IMAGE), y)
+ifneq ($(strip $(pbl-y) $(builtin-target)),)
+pbl-target := $(obj)/built-in-pbl.o
+endif
+endif
+
# We keep a list of all modules in $(MODVERDIR)
-__build: $(if $(KBUILD_BUILTIN),$(builtin-target) $(lib-target) $(extra-y)) \
+__build: $(if $(KBUILD_BUILTIN),$(builtin-target) $(lib-target) $(pbl-target) $(extra-y)) \
$(if $(KBUILD_MODULES),$(obj-m)) \
$(subdir-ym) $(always)
@:
@@ -177,9 +184,11 @@ cmd_cc_symtypes_c = \
# (See cmd_cc_o_c + relevant part of rule_cc_o_c)
quiet_cmd_cc_o_c = CC $(quiet_modtag) $@
+quiet_cmd_pbl_cc_o_c = PBLCC $@
ifndef CONFIG_MODVERSIONS
cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
+cmd_pbl_cc_o_c = $(CC) -D__PBL__ $(c_flags) -c -o $@ $<
else
# When module versioning is enabled the following steps are executed:
@@ -220,8 +229,22 @@ define rule_cc_o_c
mv -f $(dot-target).tmp $(dot-target).cmd
endef
+define rule_pbl_cc_o_c
+ $(call echo-cmd,checksrc) $(cmd_checksrc) \
+ $(call echo-cmd,pbl_cc_o_c) $(cmd_pbl_cc_o_c); \
+ $(cmd_modversions) \
+ scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,pbl_cc__o_c)' > \
+ $(dot-target).tmp; \
+ rm -f $(depfile); \
+ mv -f $(dot-target).tmp $(dot-target).cmd
+endef
+
# Built-in and composite module parts
+pbl-%.o: %.c
+ $(call cmd,force_checksrc)
+ $(call if_changed_rule,pbl_cc_o_c)
+
%.o: %.c FORCE
$(call cmd,force_checksrc)
$(call if_changed_rule,cc_o_c)
@@ -258,10 +281,16 @@ cmd_as_s_S = $(CPP) $(a_flags) -o $@ $<
quiet_cmd_as_o_S = AS $(quiet_modtag) $@
cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
+quiet_cmd_pbl_as_o_S = PBLAS $@
+cmd_pbl_as_o_S = $(CC) -D__PBL__ $(a_flags) -c -o $@ $<
+
+pbl-%.o: %.S
+ $(call if_changed_dep,pbl_as_o_S)
+
%.o: %.S FORCE
$(call if_changed_dep,as_o_S)
-targets += $(real-objs-y) $(real-objs-m) $(lib-y)
+targets += $(real-objs-y) $(real-objs-m) $(lib-y) $(pbl-y)
targets += $(extra-y) $(MAKECMDGOALS) $(always)
# Linker scripts preprocessor (.lds.S -> .lds)
@@ -294,6 +323,19 @@ $(builtin-target): $(obj-y) FORCE
targets += $(builtin-target)
endif # builtin-target
+ifdef pbl-target
+quiet_cmd_pbl_link_o_target = PBLLD $@
+# If the list of objects to link is empty, just create an empty built-in-pbl.o
+cmd_pbl_link_o_target = $(if $(strip $(pbl-y)),\
+ $(LD) $(ld_flags) -r -o $@ $(filter $(pbl-y), $^),\
+ rm -f $@; $(AR) rcs $@)
+
+$(pbl-target): $(pbl-y) FORCE
+ $(call if_changed,pbl_link_o_target)
+
+targets += $(pbl-target)
+endif # pbl-target
+
#
# Rule to compile a set of .o files into one .a file
#
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index b842c48..1a5b2b5 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -21,6 +21,17 @@ lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m)))
# o if we encounter foo/ in $(obj-m), remove it from $(obj-m)
# and add the directory to the list of dirs to descend into: $(subdir-m)
+# for non dirs add pbl- prefix to the target
+# so we recompile the source with custom flags and custom quiet
+__pbl-y := $(notdir $(pbl-y))
+pbl-y := $(patsubst %.o,pbl-%.o,$(__pbl-y))
+# add subdir from $(obj-y) too so we do not need to have the dir define in
+# both $(obj-y) and $(pbl-y)
+__pbl-y := $(filter-out $(pbl-y), $(filter %/, $(obj-y)))
+pbl-y += $(__pbl-y)
+
+pbl-y := $(sort $(patsubst %/, %/built-in-pbl.o, $(pbl-y)))
+
__subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y)))
subdir-y += $(__subdir-y)
__subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m)))
@@ -46,7 +57,9 @@ multi-objs := $(multi-objs-y) $(multi-objs-m)
# $(subdir-obj-y) is the list of objects in $(obj-y) which do not live
# in the local directory
+__subdir-obj-y := $(foreach o,$(pbl-y),$(if $(filter-out $(o),$(notdir $(o))),$(o)))
subdir-obj-y := $(foreach o,$(obj-y),$(if $(filter-out $(o),$(notdir $(o))),$(o)))
+subdir-obj-y += $(__subdir-obj-y)
# $(obj-dirs) is a list of directories that contain object files
obj-dirs := $(dir $(multi-objs) $(subdir-obj-y))
@@ -63,6 +76,7 @@ targets := $(addprefix $(obj)/,$(targets))
obj-y := $(addprefix $(obj)/,$(obj-y))
obj-m := $(addprefix $(obj)/,$(obj-m))
lib-y := $(addprefix $(obj)/,$(lib-y))
+pbl-y := $(addprefix $(obj)/,$(pbl-y))
subdir-obj-y := $(addprefix $(obj)/,$(subdir-obj-y))
real-objs-y := $(addprefix $(obj)/,$(real-objs-y))
real-objs-m := $(addprefix $(obj)/,$(real-objs-m))
--
1.7.10.4
_______________________________________________
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barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
^ permalink raw reply [flat|nested] 16+ messages in thread* [PATCH 03/12] Add pre-bootloader (pbl) image support
2012-08-03 10:25 ` [PATCH 01/12] Makefile.clean: include Makefiles again Jean-Christophe PLAGNIOL-VILLARD
2012-08-03 10:25 ` [PATCH 02/12] kbuild: add pre-bootloader (pbl) target Jean-Christophe PLAGNIOL-VILLARD
@ 2012-08-03 10:25 ` Jean-Christophe PLAGNIOL-VILLARD
2012-08-03 10:25 ` [PATCH 04/12] pbl: discard unwind symbol if enable in barebox Jean-Christophe PLAGNIOL-VILLARD
` (8 subsequent siblings)
10 siblings, 0 replies; 16+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-08-03 10:25 UTC (permalink / raw)
To: barebox
This allows for creating a pre-bootloader binary for
- nand boot
- mmc boot
- compressed image
The pbl will be incharge of the lowlevel init if needed.
The barebox will skip it.
Import string functions from linux 3.4 (arch/arm/boot/compressed/string.c) and
implement a dummy panic.
For now on introduce dummy zbarebox* targets and c code that will contain later
the decompressor. This only implemeted on ARM.
This patch is based on Sascha Hauer <s.hauer@pengutronix.de>
Add compressed image support patch
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
Makefile | 6 +-
arch/arm/Kconfig | 1 +
arch/arm/Makefile | 7 ++
arch/arm/cpu/Makefile | 3 +-
arch/arm/cpu/{start.c => start-pbl.c} | 58 ++-------
arch/arm/cpu/{start.c => start-reset.c} | 49 +-------
arch/arm/cpu/start.c | 54 +++------
arch/arm/lib/Makefile | 4 +
arch/arm/lib/barebox.lds.S | 3 +-
arch/arm/pbl/Makefile | 25 ++++
arch/arm/{lib/barebox.lds.S => pbl/zbarebox.lds.S} | 56 +++------
common/Kconfig | 30 +++++
include/asm-generic/memory_layout.h | 1 +
pbl/Makefile | 5 +
pbl/misc.c | 14 +++
pbl/string.c | 127 ++++++++++++++++++++
16 files changed, 268 insertions(+), 175 deletions(-)
copy arch/arm/cpu/{start.c => start-pbl.c} (64%)
copy arch/arm/cpu/{start.c => start-reset.c} (58%)
create mode 100644 arch/arm/pbl/Makefile
copy arch/arm/{lib/barebox.lds.S => pbl/zbarebox.lds.S} (60%)
create mode 100644 pbl/Makefile
create mode 100644 pbl/misc.c
create mode 100644 pbl/string.c
diff --git a/Makefile b/Makefile
index ca47cb1..ce1506c 100644
--- a/Makefile
+++ b/Makefile
@@ -474,6 +474,8 @@ CFLAGS += $(call cc-option,-Wno-pointer-sign,)
# this default value
export KBUILD_IMAGE ?= barebox
+common-$(CONFIG_PBL_IMAGE) += pbl/
+
barebox-dirs := $(patsubst %/,%,$(filter %/, $(common-y)))
barebox-alldirs := $(sort $(barebox-dirs) $(patsubst %/,%,$(filter %/, \
@@ -520,7 +522,7 @@ barebox-lds := $(lds-y)
# May be overridden by arch/$(ARCH)/Makefile
quiet_cmd_barebox__ ?= LD $@
cmd_barebox__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_barebox) -o $@ \
- -T $(barebox-lds) $(barebox-head) \
+ -T $(barebox-lds) \
--start-group $(barebox-common) --end-group \
$(filter-out $(barebox-lds) $(barebox-common) FORCE ,$^)
@@ -674,7 +676,9 @@ OBJCOPYFLAGS_barebox.bin = -O binary
barebox.bin: barebox FORCE
$(call if_changed,objcopy)
+ifndef CONFIG_PBL_IMAGE
$(call cmd,check_file_size,$(CONFIG_BAREBOX_MAX_IMAGE_SIZE))
+endif
ifdef CONFIG_X86
barebox.S: barebox
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 08c742b..7932afc 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -4,6 +4,7 @@ config ARM
select HAS_MODULES
select HAVE_CONFIGURABLE_MEMORY_LAYOUT
select HAVE_CONFIGURABLE_TEXT_BASE
+ select HAVE_PBL_IMAGE
default y
config ARM_AMBA
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 1b60261..0ea050e 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -197,6 +197,13 @@ ifeq ($(CONFIG_ARCH_DAVINCI),y)
KBUILD_IMAGE := barebox.ubl
endif
+pbl := arch/arm/pbl
+zbarebox.S zbarebox.bin zbarebox: barebox.bin
+ $(Q)$(MAKE) $(build)=$(pbl) $(pbl)/$@
+
+archclean:
+ $(MAKE) $(clean)=$(pbl)
+
all: $(KBUILD_IMAGE)
archprepare: maketools
diff --git a/arch/arm/cpu/Makefile b/arch/arm/cpu/Makefile
index 93a34a9..78d300d 100644
--- a/arch/arm/cpu/Makefile
+++ b/arch/arm/cpu/Makefile
@@ -1,7 +1,7 @@
obj-y += cpu.o
obj-$(CONFIG_ARM_EXCEPTIONS) += exceptions.o
obj-$(CONFIG_ARM_EXCEPTIONS) += interrupts.o
-obj-y += start.o
+obj-y += start.o start-reset.o
#
# Any variants can be called as start-armxyz.S
@@ -15,3 +15,4 @@ obj-$(CONFIG_CPU_32v6) += cache-armv6.o
obj-$(CONFIG_CPU_32v7) += cache-armv7.o
obj-$(CONFIG_CACHE_L2X0) += cache-l2x0.o
+pbl-y += start-pbl.o start-reset.o
diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start-pbl.c
similarity index 64%
copy from arch/arm/cpu/start.c
copy to arch/arm/cpu/start-pbl.c
index 112403e..28d6f34 100644
--- a/arch/arm/cpu/start.c
+++ b/arch/arm/cpu/start-pbl.c
@@ -1,7 +1,8 @@
/*
- * start-arm.c
+ * start-pbl.c
*
- * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ * Copyright (c) 2010-2012 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ * Copyright (c) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
*
* See file CREDITS for list of people who contributed to this
* project.
@@ -24,53 +25,16 @@
#include <init.h>
#include <asm/barebox-arm.h>
#include <asm/barebox-arm-head.h>
-#include <asm/system.h>
#include <asm-generic/memory_layout.h>
#include <asm/sections.h>
-void __naked __section(.text_entry) start(void)
+void __naked __section(.text_head_entry) pbl_start(void)
{
barebox_arm_head();
}
-/*
- * The actual reset vector. This code is position independent and usually
- * does not run at the address it's linked at.
- */
-void __naked __bare_init reset(void)
+void barebox_pbl(uint32_t offset)
{
- uint32_t r;
-
- /* set the cpu to SVC32 mode */
- __asm__ __volatile__("mrs %0, cpsr":"=r"(r));
- r &= ~0x1f;
- r |= 0xd3;
- __asm__ __volatile__("msr cpsr, %0" : : "r"(r));
-
-#ifdef CONFIG_ARCH_HAS_LOWLEVEL_INIT
- arch_init_lowlevel();
-#endif
-
- /* disable MMU stuff and caches */
- r = get_cr();
- r &= ~(CR_M | CR_C | CR_B | CR_S | CR_R | CR_V);
- r |= CR_I;
-
-#if __LINUX_ARM_ARCH__ >= 6
- r |= CR_U;
-#else
- r |= CR_A;
-#endif
-
-#ifdef __ARMEB__
- r |= CR_B;
-#endif
- set_cr(r);
-
-#ifdef CONFIG_MACH_DO_LOWLEVEL_INIT
- board_init_lowlevel();
-#endif
- board_init_lowlevel_return();
}
/*
@@ -105,8 +69,12 @@ void __naked __section(.text_ll_return) board_init_lowlevel_return(void)
/* flush I-cache before jumping to the copied binary */
__asm__ __volatile__("mcr p15, 0, %0, c7, c5, 0" : : "r" (0));
- /* call start_barebox with its absolute address */
- r = (unsigned int)&start_barebox;
- __asm__ __volatile__("mov pc, %0" : : "r"(r));
+ r = (unsigned int)&barebox_pbl;
+ /* call barebox_uncompress with its absolute address */
+ __asm__ __volatile__(
+ "mov r0, %1\n"
+ "mov pc, %0\n"
+ :
+ : "r"(r), "r"(offset),
+ : "r0");
}
-
diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start-reset.c
similarity index 58%
copy from arch/arm/cpu/start.c
copy to arch/arm/cpu/start-reset.c
index 112403e..e0df676 100644
--- a/arch/arm/cpu/start.c
+++ b/arch/arm/cpu/start-reset.c
@@ -1,5 +1,5 @@
/*
- * start-arm.c
+ * start-reset.c
*
* Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
*
@@ -22,17 +22,10 @@
#include <common.h>
#include <init.h>
-#include <asm/barebox-arm.h>
-#include <asm/barebox-arm-head.h>
#include <asm/system.h>
-#include <asm-generic/memory_layout.h>
+#include <asm/barebox-arm.h>
#include <asm/sections.h>
-void __naked __section(.text_entry) start(void)
-{
- barebox_arm_head();
-}
-
/*
* The actual reset vector. This code is position independent and usually
* does not run at the address it's linked at.
@@ -72,41 +65,3 @@ void __naked __bare_init reset(void)
#endif
board_init_lowlevel_return();
}
-
-/*
- * Board code can jump here by either returning from board_init_lowlevel
- * or by calling this function directly.
- */
-void __naked __section(.text_ll_return) board_init_lowlevel_return(void)
-{
- uint32_t r, addr, offset;
-
- /*
- * Get runtime address of this function. Do not
- * put any code above this.
- */
- __asm__ __volatile__("1: adr %0, 1b":"=r"(addr));
-
- /* Setup the stack */
- r = STACK_BASE + STACK_SIZE - 16;
- __asm__ __volatile__("mov sp, %0" : : "r"(r));
-
- /* Get offset between linked address and runtime address */
- offset = (uint32_t)__ll_return - addr;
-
- /* relocate to link address if necessary */
- if (offset)
- memcpy((void *)_text, (void *)(_text - offset),
- __bss_start - _text);
-
- /* clear bss */
- memset(__bss_start, 0, __bss_stop - __bss_start);
-
- /* flush I-cache before jumping to the copied binary */
- __asm__ __volatile__("mcr p15, 0, %0, c7, c5, 0" : : "r" (0));
-
- /* call start_barebox with its absolute address */
- r = (unsigned int)&start_barebox;
- __asm__ __volatile__("mov pc, %0" : : "r"(r));
-}
-
diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start.c
index 112403e..8365a75 100644
--- a/arch/arm/cpu/start.c
+++ b/arch/arm/cpu/start.c
@@ -24,53 +24,31 @@
#include <init.h>
#include <asm/barebox-arm.h>
#include <asm/barebox-arm-head.h>
-#include <asm/system.h>
#include <asm-generic/memory_layout.h>
#include <asm/sections.h>
-void __naked __section(.text_entry) start(void)
-{
- barebox_arm_head();
-}
-
+#ifdef CONFIG_PBL_IMAGE
/*
- * The actual reset vector. This code is position independent and usually
- * does not run at the address it's linked at.
+ * First function in the pbl image. We get here from
+ * the pbl.
*/
-void __naked __bare_init reset(void)
+void __naked __section(.text_entry) start(void)
{
- uint32_t r;
+ u32 r;
- /* set the cpu to SVC32 mode */
- __asm__ __volatile__("mrs %0, cpsr":"=r"(r));
- r &= ~0x1f;
- r |= 0xd3;
- __asm__ __volatile__("msr cpsr, %0" : : "r"(r));
-
-#ifdef CONFIG_ARCH_HAS_LOWLEVEL_INIT
- arch_init_lowlevel();
-#endif
-
- /* disable MMU stuff and caches */
- r = get_cr();
- r &= ~(CR_M | CR_C | CR_B | CR_S | CR_R | CR_V);
- r |= CR_I;
+ /* Setup the stack */
+ r = STACK_BASE + STACK_SIZE - 16;
+ __asm__ __volatile__("mov sp, %0" : : "r"(r));
+ /* clear bss */
+ memset(__bss_start, 0, __bss_stop - __bss_start);
-#if __LINUX_ARM_ARCH__ >= 6
- r |= CR_U;
+ start_barebox();
+}
#else
- r |= CR_A;
-#endif
-
-#ifdef __ARMEB__
- r |= CR_B;
-#endif
- set_cr(r);
-#ifdef CONFIG_MACH_DO_LOWLEVEL_INIT
- board_init_lowlevel();
-#endif
- board_init_lowlevel_return();
+void __naked __section(.text_entry) start(void)
+{
+ barebox_arm_head();
}
/*
@@ -109,4 +87,4 @@ void __naked __section(.text_ll_return) board_init_lowlevel_return(void)
r = (unsigned int)&start_barebox;
__asm__ __volatile__("mov pc, %0" : : "r"(r));
}
-
+#endif
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index 1eaf474..9d0ff7a 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -21,3 +21,7 @@ obj-$(CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS) += memset.o
obj-$(CONFIG_ARM_UNWIND) += unwind.o
obj-$(CONFIG_MODULES) += module.o
extra-y += barebox.lds
+
+pbl-y += lib1funcs.o
+pbl-y += ashldi3.o
+pbl-y += div0.o
diff --git a/arch/arm/lib/barebox.lds.S b/arch/arm/lib/barebox.lds.S
index e0bae70..a69013f 100644
--- a/arch/arm/lib/barebox.lds.S
+++ b/arch/arm/lib/barebox.lds.S
@@ -31,8 +31,9 @@ SECTIONS
{
. = TEXT_BASE;
+#ifndef CONFIG_PBL_IMAGE
PRE_IMAGE
-
+#endif
. = ALIGN(4);
.text :
{
diff --git a/arch/arm/pbl/Makefile b/arch/arm/pbl/Makefile
new file mode 100644
index 0000000..9b364bb
--- /dev/null
+++ b/arch/arm/pbl/Makefile
@@ -0,0 +1,25 @@
+
+OBJCOPYFLAGS_zbarebox.bin = -O binary
+
+targets := zbarebox.lds zbarebox zbarebox.bin zbarebox.S
+
+$(obj)/zbarebox.bin: $(obj)/zbarebox FORCE
+ $(call if_changed,objcopy)
+ $(call cmd,check_file_size,$(CONFIG_BAREBOX_MAX_IMAGE_SIZE))
+ @echo ' Barebox: $@ is ready'
+
+$(obj)/zbarebox.S: $(obj)/zbarebox FORCE
+ $(call if_changed,disasm)
+
+LDFLAGS_zbarebox := -Map zbarebox.map
+zbarebox-common := $(barebox-pbl-common)
+zbarebox-lds := $(obj)/zbarebox.lds
+
+quiet_cmd_zbarebox__ ?= LD $@
+ cmd_zbarebox__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_zbarebox) -o $@ \
+ -T $(zbarebox-lds) \
+ --start-group $(zbarebox-common) --end-group \
+ $(filter-out $(zbarebox-lds) $(zbarebox-common) FORCE ,$^)
+
+$(obj)/zbarebox: $(zbarebox-lds) $(zbarebox-common) FORCE
+ $(call if_changed,zbarebox__)
diff --git a/arch/arm/lib/barebox.lds.S b/arch/arm/pbl/zbarebox.lds.S
similarity index 60%
copy from arch/arm/lib/barebox.lds.S
copy to arch/arm/pbl/zbarebox.lds.S
index e0bae70..b6e8028 100644
--- a/arch/arm/lib/barebox.lds.S
+++ b/arch/arm/pbl/zbarebox.lds.S
@@ -1,6 +1,5 @@
/*
- * (C) Copyright 2000-2004
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ * (C) Copyright 2012 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
*
* See file CREDITS for list of people who contributed to this
* project.
@@ -23,13 +22,14 @@
*/
#include <asm-generic/barebox.lds.h>
+#include <asm-generic/memory_layout.h>
OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
OUTPUT_ARCH(arm)
-ENTRY(start)
+ENTRY(pbl_start)
SECTIONS
{
- . = TEXT_BASE;
+ . = HEAD_TEXT_BASE;
PRE_IMAGE
@@ -38,15 +38,12 @@ SECTIONS
{
_stext = .;
_text = .;
- *(.text_entry*)
+ *(.text_head_entry*)
__ll_return = .;
*(.text_ll_return*)
__bare_init_start = .;
*(.text_bare_init*)
__bare_init_end = .;
- __exceptions_start = .;
- KEEP(*(.text_exceptions*))
- __exceptions_stop = .;
*(.text*)
}
BAREBOX_BARE_INIT_SIZE
@@ -54,48 +51,23 @@ SECTIONS
. = ALIGN(4);
.rodata : { *(.rodata*) }
-#ifdef CONFIG_ARM_UNWIND
- /*
- * Stack unwinding tables
- */
- . = ALIGN(8);
- .ARM.unwind_idx : {
- __start_unwind_idx = .;
- *(.ARM.exidx*)
- __stop_unwind_idx = .;
- }
- .ARM.unwind_tab : {
- __start_unwind_tab = .;
- *(.ARM.extab*)
- __stop_unwind_tab = .;
- }
-#endif
_etext = .; /* End of text and rodata section */
. = ALIGN(4);
.data : { *(.data*) }
- . = .;
- __barebox_cmd_start = .;
- .barebox_cmd : { BAREBOX_CMDS }
- __barebox_cmd_end = .;
-
- __barebox_magicvar_start = .;
- .barebox_magicvar : { BAREBOX_MAGICVARS }
- __barebox_magicvar_end = .;
-
- __barebox_initcalls_start = .;
- .barebox_initcalls : { INITCALLS }
- __barebox_initcalls_end = .;
-
- __usymtab_start = .;
- __usymtab : { BAREBOX_SYMS }
- __usymtab_end = .;
-
. = ALIGN(4);
__bss_start = .;
.bss : { *(.bss*) }
__bss_stop = .;
_end = .;
- _barebox_image_size = __bss_start - TEXT_BASE;
+
+ . = ALIGN(4);
+ __piggydata_start = .;
+ .piggydata : {
+ *(.piggydata)
+ }
+ __piggydata_end = .;
+
+ _barebox_image_size = __piggydata_end - HEAD_TEXT_BASE;
}
diff --git a/common/Kconfig b/common/Kconfig
index 7eb5b49..7b5a307 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -101,6 +101,36 @@ config ENVIRONMENT_VARIABLES
menu "memory layout "
+config HAVE_PBL_IMAGE
+ bool
+
+config HAVE_IMAGE_COMPRESSION
+ bool
+
+config PBL_IMAGE
+ bool "Pre-Bootloader image"
+ depends on HAVE_PBL_IMAGE
+
+if PBL_IMAGE
+
+config IMAGE_COMPRESSION
+ bool "Compressed image"
+ depends on HAVE_IMAGE_COMPRESSION
+
+if IMAGE_COMPRESSION
+
+choice
+ prompt "Compression"
+
+config IMAGE_COMPRESSION_LZO
+ bool "lzo"
+
+endchoice
+
+endif
+
+endif
+
config MMU
bool "Enable MMU"
help
diff --git a/include/asm-generic/memory_layout.h b/include/asm-generic/memory_layout.h
index 941cd42..eb1607f 100644
--- a/include/asm-generic/memory_layout.h
+++ b/include/asm-generic/memory_layout.h
@@ -13,6 +13,7 @@
#endif
+#define HEAD_TEXT_BASE MALLOC_BASE
#define MALLOC_SIZE CONFIG_MALLOC_SIZE
#define STACK_SIZE CONFIG_STACK_SIZE
diff --git a/pbl/Makefile b/pbl/Makefile
new file mode 100644
index 0000000..7169c6c
--- /dev/null
+++ b/pbl/Makefile
@@ -0,0 +1,5 @@
+#
+# only unsed by the pbl
+#
+pbl-y += misc.o
+pbl-y += string.o
diff --git a/pbl/misc.c b/pbl/misc.c
new file mode 100644
index 0000000..47e9cea
--- /dev/null
+++ b/pbl/misc.c
@@ -0,0 +1,14 @@
+#include <common.h>
+#include <init.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
+
+void __noreturn panic(const char *fmt, ...)
+{
+ while(1);
+}
+
+void start_barebox(void)
+{
+}
diff --git a/pbl/string.c b/pbl/string.c
new file mode 100644
index 0000000..6787e82
--- /dev/null
+++ b/pbl/string.c
@@ -0,0 +1,127 @@
+/*
+ * arch/arm/boot/compressed/string.c
+ *
+ * Small subset of simple string routines
+ */
+
+#include <linux/types.h>
+
+void *memcpy(void *__dest, __const void *__src, size_t __n)
+{
+ int i = 0;
+ unsigned char *d = (unsigned char *)__dest, *s = (unsigned char *)__src;
+
+ for (i = __n >> 3; i > 0; i--) {
+ *d++ = *s++;
+ *d++ = *s++;
+ *d++ = *s++;
+ *d++ = *s++;
+ *d++ = *s++;
+ *d++ = *s++;
+ *d++ = *s++;
+ *d++ = *s++;
+ }
+
+ if (__n & 1 << 2) {
+ *d++ = *s++;
+ *d++ = *s++;
+ *d++ = *s++;
+ *d++ = *s++;
+ }
+
+ if (__n & 1 << 1) {
+ *d++ = *s++;
+ *d++ = *s++;
+ }
+
+ if (__n & 1)
+ *d++ = *s++;
+
+ return __dest;
+}
+
+void *memmove(void *__dest, __const void *__src, size_t count)
+{
+ unsigned char *d = __dest;
+ const unsigned char *s = __src;
+
+ if (__dest == __src)
+ return __dest;
+
+ if (__dest < __src)
+ return memcpy(__dest, __src, count);
+
+ while (count--)
+ d[count] = s[count];
+ return __dest;
+}
+
+size_t strlen(const char *s)
+{
+ const char *sc = s;
+
+ while (*sc != '\0')
+ sc++;
+ return sc - s;
+}
+
+int memcmp(const void *cs, const void *ct, size_t count)
+{
+ const unsigned char *su1 = cs, *su2 = ct, *end = su1 + count;
+ int res = 0;
+
+ while (su1 < end) {
+ res = *su1++ - *su2++;
+ if (res)
+ break;
+ }
+ return res;
+}
+
+int strcmp(const char *cs, const char *ct)
+{
+ unsigned char c1, c2;
+ int res = 0;
+
+ do {
+ c1 = *cs++;
+ c2 = *ct++;
+ res = c1 - c2;
+ if (res)
+ break;
+ } while (c1);
+ return res;
+}
+
+void *memchr(const void *s, int c, size_t count)
+{
+ const unsigned char *p = s;
+
+ while (count--)
+ if ((unsigned char)c == *p++)
+ return (void *)(p - 1);
+ return NULL;
+}
+
+char *strchr(const char *s, int c)
+{
+ while (*s != (char)c)
+ if (*s++ == '\0')
+ return NULL;
+ return (char *)s;
+}
+
+#undef memset
+
+void *memset(void *s, int c, size_t count)
+{
+ char *xs = s;
+ while (count--)
+ *xs++ = c;
+ return s;
+}
+
+void __memzero(void *s, size_t count)
+{
+ memset(s, 0, count);
+}
--
1.7.10.4
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
^ permalink raw reply [flat|nested] 16+ messages in thread* [PATCH 04/12] pbl: discard unwind symbol if enable in barebox
2012-08-03 10:25 ` [PATCH 01/12] Makefile.clean: include Makefiles again Jean-Christophe PLAGNIOL-VILLARD
2012-08-03 10:25 ` [PATCH 02/12] kbuild: add pre-bootloader (pbl) target Jean-Christophe PLAGNIOL-VILLARD
2012-08-03 10:25 ` [PATCH 03/12] Add pre-bootloader (pbl) image support Jean-Christophe PLAGNIOL-VILLARD
@ 2012-08-03 10:25 ` Jean-Christophe PLAGNIOL-VILLARD
2012-08-03 10:25 ` [PATCH 05/12] Add compressed image support Jean-Christophe PLAGNIOL-VILLARD
` (7 subsequent siblings)
10 siblings, 0 replies; 16+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-08-03 10:25 UTC (permalink / raw)
To: barebox
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
arch/arm/Kconfig | 1 +
arch/arm/Makefile | 4 ++++
arch/arm/pbl/Makefile | 16 ++++++++++++++--
arch/arm/pbl/piggy.lzo.S | 6 ++++++
arch/arm/pbl/zbarebox.lds.S | 4 ++++
5 files changed, 29 insertions(+), 2 deletions(-)
create mode 100644 arch/arm/pbl/piggy.lzo.S
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 7932afc..9cba655 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -5,6 +5,7 @@ config ARM
select HAVE_CONFIGURABLE_MEMORY_LAYOUT
select HAVE_CONFIGURABLE_TEXT_BASE
select HAVE_PBL_IMAGE
+ select HAVE_IMAGE_COMPRESSION
default y
config ARM_AMBA
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 0ea050e..be4ef30 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -197,6 +197,10 @@ ifeq ($(CONFIG_ARCH_DAVINCI),y)
KBUILD_IMAGE := barebox.ubl
endif
+ifdef CONFIG_IMAGE_COMPRESSION
+KBUILD_IMAGE := zbarebox.bin
+endif
+
pbl := arch/arm/pbl
zbarebox.S zbarebox.bin zbarebox: barebox.bin
$(Q)$(MAKE) $(build)=$(pbl) $(pbl)/$@
diff --git a/arch/arm/pbl/Makefile b/arch/arm/pbl/Makefile
index 9b364bb..4135911 100644
--- a/arch/arm/pbl/Makefile
+++ b/arch/arm/pbl/Makefile
@@ -1,7 +1,14 @@
+suffix_$(CONFIG_IMAGE_COMPRESSION_LZO) = lzo
+
OBJCOPYFLAGS_zbarebox.bin = -O binary
+piggy_o := piggy.$(suffix_y).o
+
+targets := zbarebox.lds zbarebox zbarebox.bin zbarebox.S \
+ $(piggy_o) piggy.$(suffix_y)
-targets := zbarebox.lds zbarebox zbarebox.bin zbarebox.S
+# Make sure files are removed during clean
+extra-y += piggy.gzip piggy.lzo piggy.lzma piggy.xzkern
$(obj)/zbarebox.bin: $(obj)/zbarebox FORCE
$(call if_changed,objcopy)
@@ -12,7 +19,7 @@ $(obj)/zbarebox.S: $(obj)/zbarebox FORCE
$(call if_changed,disasm)
LDFLAGS_zbarebox := -Map zbarebox.map
-zbarebox-common := $(barebox-pbl-common)
+zbarebox-common := $(barebox-pbl-common) $(obj)/$(piggy_o)
zbarebox-lds := $(obj)/zbarebox.lds
quiet_cmd_zbarebox__ ?= LD $@
@@ -23,3 +30,8 @@ quiet_cmd_zbarebox__ ?= LD $@
$(obj)/zbarebox: $(zbarebox-lds) $(zbarebox-common) FORCE
$(call if_changed,zbarebox__)
+
+$(obj)/piggy.$(suffix_y): $(obj)/../../../barebox.bin FORCE
+ $(call if_changed,$(suffix_y))
+
+$(obj)/$(piggy_o): $(obj)/piggy.$(suffix_y) FORCE
diff --git a/arch/arm/pbl/piggy.lzo.S b/arch/arm/pbl/piggy.lzo.S
new file mode 100644
index 0000000..e0484c7
--- /dev/null
+++ b/arch/arm/pbl/piggy.lzo.S
@@ -0,0 +1,6 @@
+ .section .piggydata,#alloc
+ .globl input_data
+input_data:
+ .incbin "arch/arm/pbl/piggy.lzo"
+ .globl input_data_end
+input_data_end:
diff --git a/arch/arm/pbl/zbarebox.lds.S b/arch/arm/pbl/zbarebox.lds.S
index b6e8028..d587090 100644
--- a/arch/arm/pbl/zbarebox.lds.S
+++ b/arch/arm/pbl/zbarebox.lds.S
@@ -46,6 +46,10 @@ SECTIONS
__bare_init_end = .;
*(.text*)
}
+
+ /* Discard unwind if enable in barebox */
+ /DISCARD/ : { *(.ARM.ex*) }
+
BAREBOX_BARE_INIT_SIZE
. = ALIGN(4);
--
1.7.10.4
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
^ permalink raw reply [flat|nested] 16+ messages in thread* [PATCH 05/12] Add compressed image support
2012-08-03 10:25 ` [PATCH 01/12] Makefile.clean: include Makefiles again Jean-Christophe PLAGNIOL-VILLARD
` (2 preceding siblings ...)
2012-08-03 10:25 ` [PATCH 04/12] pbl: discard unwind symbol if enable in barebox Jean-Christophe PLAGNIOL-VILLARD
@ 2012-08-03 10:25 ` Jean-Christophe PLAGNIOL-VILLARD
2012-08-03 10:25 ` [PATCH 06/12] decompressor: import malloc/free implementation for linux 3.4 Jean-Christophe PLAGNIOL-VILLARD
` (6 subsequent siblings)
10 siblings, 0 replies; 16+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-08-03 10:25 UTC (permalink / raw)
To: barebox
This allows for creating a lzo compressed binary unsing the pbl.
Only copy the piggydata if needed.
Add CONFIG_PBL_FORCE_PIGGYDATA_COPY option
In some case we need to copy the PIGGYDATA as the link address
as example we run from SRAM and shutdown the SDRAM/DDR for
reconfiguration but most of the time we just need to copy the
executable code.
based on Sascha Hauer
Add compressed image support
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
arch/arm/cpu/start-pbl.c | 59 +++++++++++++++++++++++++++++++++++++---
arch/arm/pbl/zbarebox.lds.S | 1 +
common/Kconfig | 12 +++++++-
include/asm-generic/sections.h | 2 ++
4 files changed, 69 insertions(+), 5 deletions(-)
diff --git a/arch/arm/cpu/start-pbl.c b/arch/arm/cpu/start-pbl.c
index 28d6f34..17e0829 100644
--- a/arch/arm/cpu/start-pbl.c
+++ b/arch/arm/cpu/start-pbl.c
@@ -33,8 +33,33 @@ void __naked __section(.text_head_entry) pbl_start(void)
barebox_arm_head();
}
-void barebox_pbl(uint32_t offset)
+extern void *input_data;
+extern void *input_data_end;
+
+#define STATIC static
+
+#ifdef CONFIG_IMAGE_COMPRESSION_LZO
+#include "../../../lib/decompress_unlzo.c"
+#endif
+
+static void barebox_uncompress(void *compressed_start, unsigned int len)
{
+ void (*barebox)(void);
+
+ if (IS_ENABLED(CONFIG_THUMB2_BAREBOX))
+ barebox = (void *)(TEXT_BASE + 1);
+ else
+ barebox = (void *)TEXT_BASE;
+
+ decompress((void *)compressed_start,
+ len,
+ NULL, NULL,
+ (void *)TEXT_BASE, NULL, NULL);
+
+ /* flush I-cache before jumping to the uncompressed binary */
+ __asm__ __volatile__("mcr p15, 0, %0, c7, c5, 0" : : "r" (0));
+
+ barebox();
}
/*
@@ -44,6 +69,7 @@ void barebox_pbl(uint32_t offset)
void __naked __section(.text_ll_return) board_init_lowlevel_return(void)
{
uint32_t r, addr, offset;
+ uint32_t pg_start, pg_end, pg_len;
/*
* Get runtime address of this function. Do not
@@ -58,6 +84,30 @@ void __naked __section(.text_ll_return) board_init_lowlevel_return(void)
/* Get offset between linked address and runtime address */
offset = (uint32_t)__ll_return - addr;
+ pg_start = (uint32_t)&input_data - offset;
+ pg_end = (uint32_t)&input_data_end - offset;
+ pg_len = pg_end - pg_start;
+
+ if (IS_ENABLED(CONFIG_PBL_FORCE_PIGGYDATA_COPY))
+ goto copy_piggy_link;
+
+ /*
+ * Check if the piggydata binary will be overwritten
+ * by the uncompressed binary or by the pbl relocation
+ */
+ if (!offset ||
+ !((pg_start >= TEXT_BASE && pg_start < TEXT_BASE + pg_len * 4) ||
+ ((uint32_t)_text >= pg_start && (uint32_t)_text <= pg_end)))
+ goto copy_link;
+
+copy_piggy_link:
+ /*
+ * copy piggydata binary to its link address
+ */
+ memcpy(&input_data, (void *)pg_start, pg_len);
+ pg_start = (uint32_t)&input_data;
+
+copy_link:
/* relocate to link address if necessary */
if (offset)
memcpy((void *)_text, (void *)(_text - offset),
@@ -69,12 +119,13 @@ void __naked __section(.text_ll_return) board_init_lowlevel_return(void)
/* flush I-cache before jumping to the copied binary */
__asm__ __volatile__("mcr p15, 0, %0, c7, c5, 0" : : "r" (0));
- r = (unsigned int)&barebox_pbl;
+ r = (unsigned int)&barebox_uncompress;
/* call barebox_uncompress with its absolute address */
__asm__ __volatile__(
"mov r0, %1\n"
+ "mov r1, %2\n"
"mov pc, %0\n"
:
- : "r"(r), "r"(offset),
- : "r0");
+ : "r"(r), "r"(pg_start), "r"(pg_len)
+ : "r0", "r1");
}
diff --git a/arch/arm/pbl/zbarebox.lds.S b/arch/arm/pbl/zbarebox.lds.S
index d587090..2dca278 100644
--- a/arch/arm/pbl/zbarebox.lds.S
+++ b/arch/arm/pbl/zbarebox.lds.S
@@ -74,4 +74,5 @@ SECTIONS
__piggydata_end = .;
_barebox_image_size = __piggydata_end - HEAD_TEXT_BASE;
+ _barebox_pbl_size = __bss_start - HEAD_TEXT_BASE;
}
diff --git a/common/Kconfig b/common/Kconfig
index 7b5a307..828fc05 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -111,11 +111,20 @@ config PBL_IMAGE
bool "Pre-Bootloader image"
depends on HAVE_PBL_IMAGE
+config PBL_FORCE_PIGGYDATA_COPY
+ bool
+ help
+ In some case we need to copy the PIGGYDATA as the link address
+ as example we run from SRAM and shutdown the SDRAM/DDR for
+ reconfiguration but most of the time we just need to copy the
+ executable code.
+
if PBL_IMAGE
config IMAGE_COMPRESSION
- bool "Compressed image"
+ bool
depends on HAVE_IMAGE_COMPRESSION
+ default y
if IMAGE_COMPRESSION
@@ -511,6 +520,7 @@ config DEFAULT_ENVIRONMENT
config DEFAULT_ENVIRONMENT_COMPRESSED
bool
depends on DEFAULT_ENVIRONMENT
+ depends on !IMAGE_COMPRESSION_LZO
default y if ZLIB
default y if BZLIB
default y if LZO_DECOMPRESS
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index 5484b6f..17d5fd1 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -7,8 +7,10 @@ extern char __bare_init_start[], __bare_init_end[];
extern char _end[];
extern void *_barebox_image_size;
extern void *_barebox_bare_init_size;
+extern void *_barebox_pbl_size;
#define barebox_image_size (unsigned int)&_barebox_image_size
#define barebox_bare_init_size (unsigned int)&_barebox_bare_init_size
+#define barebox_pbl_size (unsigned int)&_barebox_pbl_size
#endif /* _ASM_GENERIC_SECTIONS_H_ */
--
1.7.10.4
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
^ permalink raw reply [flat|nested] 16+ messages in thread* [PATCH 06/12] decompressor: import malloc/free implementation for linux 3.4
2012-08-03 10:25 ` [PATCH 01/12] Makefile.clean: include Makefiles again Jean-Christophe PLAGNIOL-VILLARD
` (3 preceding siblings ...)
2012-08-03 10:25 ` [PATCH 05/12] Add compressed image support Jean-Christophe PLAGNIOL-VILLARD
@ 2012-08-03 10:25 ` Jean-Christophe PLAGNIOL-VILLARD
2012-08-03 10:25 ` [PATCH 07/12] ARM: add early malloc support needed by the decompressor Jean-Christophe PLAGNIOL-VILLARD
` (5 subsequent siblings)
10 siblings, 0 replies; 16+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-08-03 10:25 UTC (permalink / raw)
To: barebox
This is need for gunzip support
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
include/linux/decompress/mm.h | 68 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 68 insertions(+)
create mode 100644 include/linux/decompress/mm.h
diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
new file mode 100644
index 0000000..0c35411
--- /dev/null
+++ b/include/linux/decompress/mm.h
@@ -0,0 +1,68 @@
+/*
+ * linux/compr_mm.h
+ *
+ * Memory management for pre-boot and ramdisk uncompressors
+ *
+ * Authors: Alain Knaff <alain@knaff.lu>
+ *
+ */
+
+#ifndef DECOMPR_MM_H
+#define DECOMPR_MM_H
+
+#ifdef STATIC
+
+/* Code active when included from pre-boot environment: */
+
+/*
+ * Some architectures want to ensure there is no local data in their
+ * pre-boot environment, so that data can arbitrarily relocated (via
+ * GOT references). This is achieved by defining STATIC_RW_DATA to
+ * be null.
+ */
+#ifndef STATIC_RW_DATA
+#define STATIC_RW_DATA static
+#endif
+
+/* A trivial malloc implementation, adapted from
+ * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
+ */
+STATIC_RW_DATA unsigned long malloc_ptr;
+STATIC_RW_DATA int malloc_count;
+
+static void *malloc(int size)
+{
+ void *p;
+
+ if (size < 0)
+ return NULL;
+ if (!malloc_ptr)
+ malloc_ptr = free_mem_ptr;
+
+ malloc_ptr = (malloc_ptr + 3) & ~3; /* Align */
+
+ p = (void *)malloc_ptr;
+ malloc_ptr += size;
+
+ if (free_mem_end_ptr && malloc_ptr >= free_mem_end_ptr)
+ return NULL;
+
+ malloc_count++;
+ return p;
+}
+
+static void free(void *where)
+{
+ malloc_count--;
+ if (!malloc_count)
+ malloc_ptr = free_mem_ptr;
+}
+
+#define large_malloc(a) malloc(a)
+#define large_free(a) free(a)
+
+#define INIT
+
+#endif /* STATIC */
+
+#endif /* DECOMPR_MM_H */
--
1.7.10.4
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^ permalink raw reply [flat|nested] 16+ messages in thread* [PATCH 07/12] ARM: add early malloc support needed by the decompressor
2012-08-03 10:25 ` [PATCH 01/12] Makefile.clean: include Makefiles again Jean-Christophe PLAGNIOL-VILLARD
` (4 preceding siblings ...)
2012-08-03 10:25 ` [PATCH 06/12] decompressor: import malloc/free implementation for linux 3.4 Jean-Christophe PLAGNIOL-VILLARD
@ 2012-08-03 10:25 ` Jean-Christophe PLAGNIOL-VILLARD
2012-08-03 10:25 ` [PATCH 08/12] compressed image: add gzip support Jean-Christophe PLAGNIOL-VILLARD
` (4 subsequent siblings)
10 siblings, 0 replies; 16+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-08-03 10:25 UTC (permalink / raw)
To: barebox
This is not needed by lzo but by gunzip, xz and others.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
arch/arm/cpu/start-pbl.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm/cpu/start-pbl.c b/arch/arm/cpu/start-pbl.c
index 17e0829..dd5c483 100644
--- a/arch/arm/cpu/start-pbl.c
+++ b/arch/arm/cpu/start-pbl.c
@@ -23,11 +23,15 @@
#include <common.h>
#include <init.h>
+#include <sizes.h>
#include <asm/barebox-arm.h>
#include <asm/barebox-arm-head.h>
#include <asm-generic/memory_layout.h>
#include <asm/sections.h>
+unsigned long free_mem_ptr;
+unsigned long free_mem_end_ptr;
+
void __naked __section(.text_head_entry) pbl_start(void)
{
barebox_arm_head();
@@ -46,6 +50,10 @@ static void barebox_uncompress(void *compressed_start, unsigned int len)
{
void (*barebox)(void);
+ /* set 128 KiB at the end of the MALLOC_BASE for early malloc */
+ free_mem_ptr = MALLOC_BASE + MALLOC_SIZE - SZ_128K;
+ free_mem_end_ptr = free_mem_ptr + SZ_128K;
+
if (IS_ENABLED(CONFIG_THUMB2_BAREBOX))
barebox = (void *)(TEXT_BASE + 1);
else
--
1.7.10.4
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^ permalink raw reply [flat|nested] 16+ messages in thread* [PATCH 08/12] compressed image: add gzip support
2012-08-03 10:25 ` [PATCH 01/12] Makefile.clean: include Makefiles again Jean-Christophe PLAGNIOL-VILLARD
` (5 preceding siblings ...)
2012-08-03 10:25 ` [PATCH 07/12] ARM: add early malloc support needed by the decompressor Jean-Christophe PLAGNIOL-VILLARD
@ 2012-08-03 10:25 ` Jean-Christophe PLAGNIOL-VILLARD
2012-08-03 10:25 ` [PATCH 09/12] ARM pbl: Add .gitignore for generated files Jean-Christophe PLAGNIOL-VILLARD
` (3 subsequent siblings)
10 siblings, 0 replies; 16+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-08-03 10:25 UTC (permalink / raw)
To: barebox
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
arch/arm/cpu/start-pbl.c | 4 ++++
arch/arm/pbl/Makefile | 1 +
arch/arm/pbl/piggy.gzip.S | 6 ++++++
common/Kconfig | 4 ++++
lib/decompress_inflate.c | 1 +
5 files changed, 16 insertions(+)
create mode 100644 arch/arm/pbl/piggy.gzip.S
diff --git a/arch/arm/cpu/start-pbl.c b/arch/arm/cpu/start-pbl.c
index dd5c483..004ba6a 100644
--- a/arch/arm/cpu/start-pbl.c
+++ b/arch/arm/cpu/start-pbl.c
@@ -46,6 +46,10 @@ extern void *input_data_end;
#include "../../../lib/decompress_unlzo.c"
#endif
+#ifdef CONFIG_IMAGE_COMPRESSION_GZIP
+#include "../../../../lib/decompress_inflate.c"
+#endif
+
static void barebox_uncompress(void *compressed_start, unsigned int len)
{
void (*barebox)(void);
diff --git a/arch/arm/pbl/Makefile b/arch/arm/pbl/Makefile
index 4135911..04fdffb 100644
--- a/arch/arm/pbl/Makefile
+++ b/arch/arm/pbl/Makefile
@@ -1,4 +1,5 @@
+suffix_$(CONFIG_IMAGE_COMPRESSION_GZIP) = gzip
suffix_$(CONFIG_IMAGE_COMPRESSION_LZO) = lzo
OBJCOPYFLAGS_zbarebox.bin = -O binary
diff --git a/arch/arm/pbl/piggy.gzip.S b/arch/arm/pbl/piggy.gzip.S
new file mode 100644
index 0000000..4a623c0
--- /dev/null
+++ b/arch/arm/pbl/piggy.gzip.S
@@ -0,0 +1,6 @@
+ .section .piggydata,#alloc
+ .globl input_data
+input_data:
+ .incbin "arch/arm/pbl/piggy.gzip"
+ .globl input_data_end
+input_data_end:
diff --git a/common/Kconfig b/common/Kconfig
index 828fc05..b97392c 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -134,6 +134,9 @@ choice
config IMAGE_COMPRESSION_LZO
bool "lzo"
+config IMAGE_COMPRESSION_GZIP
+ bool "gzip"
+
endchoice
endif
@@ -521,6 +524,7 @@ config DEFAULT_ENVIRONMENT_COMPRESSED
bool
depends on DEFAULT_ENVIRONMENT
depends on !IMAGE_COMPRESSION_LZO
+ depends on !IMAGE_COMPRESSION_GZIP
default y if ZLIB
default y if BZLIB
default y if LZO_DECOMPRESS
diff --git a/lib/decompress_inflate.c b/lib/decompress_inflate.c
index 526d6a1..5c1ebb6 100644
--- a/lib/decompress_inflate.c
+++ b/lib/decompress_inflate.c
@@ -4,6 +4,7 @@
/* prevent inclusion of _LINUX_KERNEL_H in pre-boot environment: lots
* errors about console_printk etc... on ARM */
#define _LINUX_KERNEL_H
+#include <linux/decompress/mm.h>
#include "zlib_inflate/inftrees.c"
#include "zlib_inflate/inffast.c"
--
1.7.10.4
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^ permalink raw reply [flat|nested] 16+ messages in thread* [PATCH 09/12] ARM pbl: Add .gitignore for generated files
2012-08-03 10:25 ` [PATCH 01/12] Makefile.clean: include Makefiles again Jean-Christophe PLAGNIOL-VILLARD
` (6 preceding siblings ...)
2012-08-03 10:25 ` [PATCH 08/12] compressed image: add gzip support Jean-Christophe PLAGNIOL-VILLARD
@ 2012-08-03 10:25 ` Jean-Christophe PLAGNIOL-VILLARD
2012-08-03 10:25 ` [PATCH 10/12] at91: add lowlevel init to the pbl Jean-Christophe PLAGNIOL-VILLARD
` (2 subsequent siblings)
10 siblings, 0 replies; 16+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-08-03 10:25 UTC (permalink / raw)
To: barebox
From: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
arch/arm/pbl/.gitignore | 5 +++++
1 file changed, 5 insertions(+)
create mode 100644 arch/arm/pbl/.gitignore
diff --git a/arch/arm/pbl/.gitignore b/arch/arm/pbl/.gitignore
new file mode 100644
index 0000000..3384d8b
--- /dev/null
+++ b/arch/arm/pbl/.gitignore
@@ -0,0 +1,5 @@
+piggy.gzip
+piggy.lzo
+zbarebox
+zbarebox.bin
+zbarebox.lds
--
1.7.10.4
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^ permalink raw reply [flat|nested] 16+ messages in thread* [PATCH 10/12] at91: add lowlevel init to the pbl
2012-08-03 10:25 ` [PATCH 01/12] Makefile.clean: include Makefiles again Jean-Christophe PLAGNIOL-VILLARD
` (7 preceding siblings ...)
2012-08-03 10:25 ` [PATCH 09/12] ARM pbl: Add .gitignore for generated files Jean-Christophe PLAGNIOL-VILLARD
@ 2012-08-03 10:25 ` Jean-Christophe PLAGNIOL-VILLARD
2012-08-03 10:25 ` [PATCH 11/12] kbuild: allow to have custom cppflags for pbl Jean-Christophe PLAGNIOL-VILLARD
2012-08-03 10:25 ` [PATCH 12/12] arm: always enable the garbage collector " Jean-Christophe PLAGNIOL-VILLARD
10 siblings, 0 replies; 16+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-08-03 10:25 UTC (permalink / raw)
To: barebox
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
arch/arm/mach-at91/Makefile | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index 491c454..3ade725 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -4,6 +4,8 @@ lowlevel_init-y = at91sam926x_lowlevel_init.o
lowlevel_init-$(CONFIG_ARCH_AT91RM9200) = at91rm9200_lowlevel_init.o
obj-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += $(lowlevel_init-y)
+pbl-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += $(lowlevel_init-y)
+
obj-$(CONFIG_AT91SAM9_RESET) += at91sam9_reset.o
obj-$(CONFIG_AT91SAM9G45_RESET) += at91sam9g45_reset.o
--
1.7.10.4
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^ permalink raw reply [flat|nested] 16+ messages in thread* [PATCH 11/12] kbuild: allow to have custom cppflags for pbl
2012-08-03 10:25 ` [PATCH 01/12] Makefile.clean: include Makefiles again Jean-Christophe PLAGNIOL-VILLARD
` (8 preceding siblings ...)
2012-08-03 10:25 ` [PATCH 10/12] at91: add lowlevel init to the pbl Jean-Christophe PLAGNIOL-VILLARD
@ 2012-08-03 10:25 ` Jean-Christophe PLAGNIOL-VILLARD
2012-08-03 10:25 ` [PATCH 12/12] arm: always enable the garbage collector " Jean-Christophe PLAGNIOL-VILLARD
10 siblings, 0 replies; 16+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-08-03 10:25 UTC (permalink / raw)
To: barebox
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
scripts/Makefile.build | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index e5b7779..383d73f 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -188,7 +188,7 @@ quiet_cmd_pbl_cc_o_c = PBLCC $@
ifndef CONFIG_MODVERSIONS
cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
-cmd_pbl_cc_o_c = $(CC) -D__PBL__ $(c_flags) -c -o $@ $<
+cmd_pbl_cc_o_c = $(CC) -D__PBL__ $(c_flags) $(PBL_CPPFLAGS) -c -o $@ $<
else
# When module versioning is enabled the following steps are executed:
@@ -282,7 +282,7 @@ quiet_cmd_as_o_S = AS $(quiet_modtag) $@
cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
quiet_cmd_pbl_as_o_S = PBLAS $@
-cmd_pbl_as_o_S = $(CC) -D__PBL__ $(a_flags) -c -o $@ $<
+cmd_pbl_as_o_S = $(CC) -D__PBL__ $(a_flags) $(PBL_CPPFLAGS) -c -o $@ $<
pbl-%.o: %.S
$(call if_changed_dep,pbl_as_o_S)
--
1.7.10.4
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^ permalink raw reply [flat|nested] 16+ messages in thread* [PATCH 12/12] arm: always enable the garbage collector for pbl
2012-08-03 10:25 ` [PATCH 01/12] Makefile.clean: include Makefiles again Jean-Christophe PLAGNIOL-VILLARD
` (9 preceding siblings ...)
2012-08-03 10:25 ` [PATCH 11/12] kbuild: allow to have custom cppflags for pbl Jean-Christophe PLAGNIOL-VILLARD
@ 2012-08-03 10:25 ` Jean-Christophe PLAGNIOL-VILLARD
10 siblings, 0 replies; 16+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-08-03 10:25 UTC (permalink / raw)
To: barebox
This allow to save arround 1KiB on at91
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
arch/arm/pbl/Makefile | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/pbl/Makefile b/arch/arm/pbl/Makefile
index 04fdffb..143da8b 100644
--- a/arch/arm/pbl/Makefile
+++ b/arch/arm/pbl/Makefile
@@ -19,7 +19,9 @@ $(obj)/zbarebox.bin: $(obj)/zbarebox FORCE
$(obj)/zbarebox.S: $(obj)/zbarebox FORCE
$(call if_changed,disasm)
+PBL_CPPFLAGS += -fdata-sections -ffunction-sections
LDFLAGS_zbarebox := -Map zbarebox.map
+LDFLAGS_zbarebox += -static --gc-sections
zbarebox-common := $(barebox-pbl-common) $(obj)/$(piggy_o)
zbarebox-lds := $(obj)/zbarebox.lds
--
1.7.10.4
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^ permalink raw reply [flat|nested] 16+ messages in thread