Mirrors/u-boot
1
0
Fork 0
mirror of https://source.denx.de/u-boot/u-boot.git synced 2026-06-13 15:03:58 +03:00
Code Issues Packages Projects Releases Wiki Activity

PPC: Use r2 instead of r29 as global data pointer

Browse Source 
R29 was an unlucky choice as with recent toolchains (gcc-4.2.x) gcc
will refuse to use load/store multiple insns; instead, it issues a
list of simple load/store instructions upon function entry and exit,
resulting in bigger code size, which in turn makes the build for a
few boards fail.

Use r2 instead.

Signed-off-by: Wolfgang Denk <wd@denx.de>
This commit is contained in:
Wolfgang Denk
2008-02-14 22:43:22 +01:00
parent 3c234efa69
commit e7670f6c1e
19 changed files with 24 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
cpu/74xx_7xx/config.mk
View File

@@ -23,4 +23,4 @@
PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -fno-strict-aliasing
PLATFORM_CPPFLAGS += -DCONFIG_74xx_7xx -ffixed-r2 -ffixed-r29 -mstring
PLATFORM_CPPFLAGS += -DCONFIG_74xx_7xx -ffixed-r2 -mstring

2
cpu/mpc512x/config.mk
View File

@@ -22,4 +22,4 @@
PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi
PLATFORM_CPPFLAGS += -DCONFIG_MPC512X -DCONFIG_E300 \
-ffixed-r2 -ffixed-r29 -msoft-float -mcpu=603e
-ffixed-r2 -msoft-float -mcpu=603e

2
cpu/mpc5xx/config.mk
View File

@@ -30,7 +30,7 @@
PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi
PLATFORM_CPPFLAGS += -DCONFIG_5xx -ffixed-r2 -ffixed-r29 -mpowerpc -msoft-float
PLATFORM_CPPFLAGS += -DCONFIG_5xx -ffixed-r2 -mpowerpc -msoft-float
# Use default linker script. Board port can override in board/*/config.mk
LDSCRIPT := $(SRCTREE)/cpu/mpc5xx/u-boot.lds

2
cpu/mpc5xxx/config.mk
View File

@@ -23,7 +23,7 @@
PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi
PLATFORM_CPPFLAGS += -DCONFIG_MPC5xxx -ffixed-r2 -ffixed-r29 \
PLATFORM_CPPFLAGS += -DCONFIG_MPC5xxx -ffixed-r2 \
-mstring -mcpu=603e -mmultiple
# Use default linker script. Board port can override in board/*/config.mk

2
cpu/mpc8220/config.mk
View File

@@ -23,7 +23,7 @@
PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi
PLATFORM_CPPFLAGS += -DCONFIG_MPC8220 -ffixed-r2 -ffixed-r29 \
PLATFORM_CPPFLAGS += -DCONFIG_MPC8220 -ffixed-r2 \
-mstring -mcpu=603e -mmultiple
# Use default linker script. Board port can override in board/*/config.mk

2
cpu/mpc824x/config.mk
View File

@@ -23,7 +23,7 @@
PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -fno-strict-aliasing
PLATFORM_CPPFLAGS += -DCONFIG_MPC824X -ffixed-r2 -ffixed-r29 -mstring -mcpu=603e -msoft-float
PLATFORM_CPPFLAGS += -DCONFIG_MPC824X -ffixed-r2 -mstring -mcpu=603e -msoft-float
# Use default linker script. Board port can override in board/*/config.mk
LDSCRIPT := $(SRCTREE)/cpu/mpc824x/u-boot.lds

2
cpu/mpc8260/config.mk
View File

@@ -23,7 +23,7 @@
PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi
PLATFORM_CPPFLAGS += -DCONFIG_8260 -DCONFIG_CPM2 -ffixed-r2 -ffixed-r29 \
PLATFORM_CPPFLAGS += -DCONFIG_8260 -DCONFIG_CPM2 -ffixed-r2 \
-mstring -mcpu=603e -mmultiple
# Use default linker script. Board port can override in board/*/config.mk

2
cpu/mpc83xx/config.mk
View File

@@ -23,7 +23,7 @@
PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi
PLATFORM_CPPFLAGS += -DCONFIG_MPC83XX -DCONFIG_E300 \
-ffixed-r2 -ffixed-r29 -msoft-float
-ffixed-r2 -msoft-float
# Use default linker script. Board port can override in board/*/config.mk
LDSCRIPT := $(SRCTREE)/cpu/mpc83xx/u-boot.lds

3
cpu/mpc85xx/config.mk
View File

@@ -23,4 +23,5 @@
PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi
PLATFORM_CPPFLAGS += -DCONFIG_MPC85xx -DCONFIG_E500 -ffixed-r2 -ffixed-r29 -Wa,-me500 -msoft-float -mno-string
PLATFORM_CPPFLAGS += -DCONFIG_MPC85xx -DCONFIG_E500 -ffixed-r2 \
-Wa,-me500 -msoft-float -mno-string

2
cpu/mpc86xx/config.mk
View File

@@ -23,4 +23,4 @@
PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi
PLATFORM_CPPFLAGS += -DCONFIG_MPC86xx -ffixed-r2 -ffixed-r29 -mstring
PLATFORM_CPPFLAGS += -DCONFIG_MPC86xx -ffixed-r2 -mstring

2
cpu/mpc86xx/start.S
View File

@@ -723,7 +723,7 @@ relocate_code:
mr r1, r3 /* Set new stack pointer */
mr r9, r4 /* Save copy of Global Data pointer */
mr r29, r9 /* Save for DECLARE_GLOBAL_DATA_PTR */
mr r2, r9 /* Save for DECLARE_GLOBAL_DATA_PTR */
mr r10, r5 /* Save copy of Destination Address */
mr r3, r5 /* Destination Address */

2
cpu/mpc8xx/config.mk
View File

@@ -23,4 +23,4 @@
PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -fno-strict-aliasing
PLATFORM_CPPFLAGS += -DCONFIG_8xx -ffixed-r2 -ffixed-r29 -mstring -mcpu=860 -msoft-float
PLATFORM_CPPFLAGS += -DCONFIG_8xx -ffixed-r2 -mstring -mcpu=860 -msoft-float

2
cpu/ppc4xx/config.mk
View File

@@ -22,7 +22,7 @@
#
PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -fno-strict-aliasing
PLATFORM_CPPFLAGS += -DCONFIG_4xx -ffixed-r2 -ffixed-r29 -mstring -msoft-float
PLATFORM_CPPFLAGS += -DCONFIG_4xx -ffixed-r2 -mstring -msoft-float
cfg=$(shell grep configs $(OBJTREE)/include/config.h | sed 's/.*<\(configs.*\)>/\1/')
is440=$(shell grep CONFIG_440 $(TOPDIR)/include/$(cfg))