change log for rtems (2011-07-28)
rtems-vc at rtems.org
rtems-vc at rtems.org
Thu Jul 28 20:10:27 UTC 2011
*strauman*:
2011-27-28 Till Straumann <strauman at slac.stanford.edu>
* start/start.S: fixed indentation. Tag TOS with a NULL
pointer (help terminate when walking the stack).
M 1.157 c/src/lib/libbsp/powerpc/gen5200/ChangeLog
M 1.17 c/src/lib/libbsp/powerpc/gen5200/start/start.S
diff -u rtems/c/src/lib/libbsp/powerpc/gen5200/ChangeLog:1.156 rtems/c/src/lib/libbsp/powerpc/gen5200/ChangeLog:1.157
--- rtems/c/src/lib/libbsp/powerpc/gen5200/ChangeLog:1.156 Fri Jun 17 06:58:41 2011
+++ rtems/c/src/lib/libbsp/powerpc/gen5200/ChangeLog Thu Jul 28 14:20:09 2011
@@ -1,3 +1,8 @@
+2011-27-28 Till Straumann <strauman at slac.stanford.edu>
+
+ * start/start.S: fixed indentation. Tag TOS with a NULL
+ pointer (help terminate when walking the stack).
+
2011-06-17 Sebastian Huber <sebastian.huber at embedded-brains.de>
* Makefile.am: Added custom memcpy(). Update for network sources.
diff -u rtems/c/src/lib/libbsp/powerpc/gen5200/start/start.S:1.16 rtems/c/src/lib/libbsp/powerpc/gen5200/start/start.S:1.17
--- rtems/c/src/lib/libbsp/powerpc/gen5200/start/start.S:1.16 Fri Jun 17 06:58:41 2011
+++ rtems/c/src/lib/libbsp/powerpc/gen5200/start/start.S Thu Jul 28 14:20:09 2011
@@ -222,7 +222,7 @@
PUBLIC_VAR (start)
start:
/* 1st: initialization work (common for RAM/ROM startup) */
- mfmsr r30
+ mfmsr r30
SETBITS r30, r29, MSR_ME|MSR_RI
CLRBITS r30, r29, MSR_EE
mtmsr r30 /* Set RI/ME, Clr EE in MSR */
@@ -442,19 +442,19 @@
/* clear entire on chip SRAM (unique for ROM startup) */
lis r30, (MBAR+ONCHIP_SRAM_OFFSET)@h /* get start address of onchip SRAM */
ori r30, r30,(MBAR+ONCHIP_SRAM_OFFSET)@l
- LWI r29, ONCHIP_SRAM_SIZE /* get size of onchip SRAM */
+ LWI r29, ONCHIP_SRAM_SIZE /* get size of onchip SRAM */
- bl clr_mem /* Clear onchip SRAM */
+ bl clr_mem /* Clear onchip SRAM */
#else /* defined(NEED_LOW_LEVEL_INIT) */
bl XLB_init
#endif /* defined(NEED_LOW_LEVEL_INIT) */
/* clear .bss section (unique for ROM startup) */
LWI r30, bsp_section_bss_start /* get start address of bss section */
- LWI r29, bsp_section_bss_size /* get size of bss section */
+ LWI r29, bsp_section_bss_size /* get size of bss section */
- bl clr_mem /* Clear the bss section */
+ bl clr_mem /* Clear the bss section */
#ifdef HAS_UBOOT
mr r3, r14
@@ -463,7 +463,10 @@
/* set stack pointer (common for RAM/ROM startup) */
LA r1, bsp_section_text_start
- addi r1, r1, -0x10 /* Set up stack pointer = beginning of text section - 0x10 */
+ addi r1, r1, -0x10 /* Set up stack pointer = beginning of text section - 0x10 */
+ /* tag TOS with a NULL pointer (termination mark for stack dump) */
+ li r0, 0
+ stw r0, 0(r1)
bl __eabi /* Set up EABI and SYSV environment */
@@ -475,10 +478,10 @@
/* clear arguments and do further init. in C (common for RAM/ROM startup) */
- /* Clear cmdline */
- xor r3, r3, r3
+ /* Clear cmdline */
+ xor r3, r3, r3
- bl SYM (boot_card) /* Call the first C routine */
+ bl SYM (boot_card) /* Call the first C routine */
twiddle:
b twiddle /* We don't expect to return from boot_card but if we do */
@@ -507,7 +510,7 @@
or r29,r29,r30 /* set bit 0 in r29/GPIOWDD */
stw r29,GPIOWDD(r31)
- /* activate MEM_CS1 output */
+ /* activate MEM_CS1 output */
lwz r29, GPIOPCR(r31)
or r29,r29,r30 /* set bit 0 in r29/GPIOPCR */
stw r29,GPIOPCR(r31)
@@ -625,20 +628,20 @@
FID_DCache:
mflr r26
- bl PPC_HID0_rd
- TSTBITS r30, r29, HID0_DCE
- bne FID_DCache_exit /* If data cache is switched of, skip further actions */
+ bl PPC_HID0_rd
+ TSTBITS r30, r29, HID0_DCE
+ bne FID_DCache_exit /* If data cache is switched of, skip further actions */
li r29, PPC_D_CACHE /* 16 Kb data cache on 603e */
LWI r28, bsp_section_text_start /* Load base address (begin of RAM) */
FID_DCache_loop_1:
- lwz r27, 0(r28) /* Load data at address */
+ lwz r27, 0(r28) /* Load data at address */
- addi r28, r28, PPC_CACHE_ALIGNMENT /* increment cache line address */
- subi r29, r29, PPC_CACHE_ALIGNMENT /* increment loop counter */
- cmpwi r29, 0x0
- bne FID_DCache_loop_1 /* Loop until cache size is reached */
+ addi r28, r28, PPC_CACHE_ALIGNMENT /* increment cache line address */
+ subi r29, r29, PPC_CACHE_ALIGNMENT /* increment loop counter */
+ cmpwi r29, 0x0
+ bne FID_DCache_loop_1 /* Loop until cache size is reached */
li r29, PPC_D_CACHE /* 16 Kb data cache on 603e */
LWI r28, bsp_section_text_start /* Reload base address (begin of RAM) */
@@ -647,14 +650,14 @@
dcbf r27, r28 /* Flush and invalidate cache */
- addi r28, r28, PPC_CACHE_ALIGNMENT /* increment cache line address */
+ addi r28, r28, PPC_CACHE_ALIGNMENT /* increment cache line address */
subi r29, r29, PPC_CACHE_ALIGNMENT /* increment loop counter */
cmpwi r29, 0x0
- bne FID_DCache_loop_2 /* Loop around until cache size is reached */
+ bne FID_DCache_loop_2 /* Loop around until cache size is reached */
- bl PPC_HID0_rd /* Read HID0 */
- CLRBITS r30, r29, HID0_DCE
- bl PPC_HID0_wr /* Clear DCE */
+ bl PPC_HID0_rd /* Read HID0 */
+ CLRBITS r30, r29, HID0_DCE
+ bl PPC_HID0_wr /* Clear DCE */
FID_DCache_exit:
mtlr r26
@@ -663,21 +666,21 @@
IDUL_ICache:
mflr r26
- bl PPC_HID0_rd
- TSTBITS r30, r29, HID0_ICE
- bne IDUL_ICache_exit /* If instruction cache is switched of, skip further actions */
+ bl PPC_HID0_rd
+ TSTBITS r30, r29, HID0_ICE
+ bne IDUL_ICache_exit /* If instruction cache is switched of, skip further actions */
CLRBITS r30, r29, HID0_ICE
- bl PPC_HID0_wr /* Disable ICE bit */
+ bl PPC_HID0_wr /* Disable ICE bit */
SETBITS r30, r29, HID0_ICFI
- bl PPC_HID0_wr /* Invalidate instruction cache */
+ bl PPC_HID0_wr /* Invalidate instruction cache */
- CLRBITS r30, r29, HID0_ICFI
- bl PPC_HID0_wr /* Disable cache invalidate */
+ CLRBITS r30, r29, HID0_ICFI
+ bl PPC_HID0_wr /* Disable cache invalidate */
- CLRBITS r30, r29, HID0_ILOCK
- bl PPC_HID0_wr /* Disable instruction cache lock */
+ CLRBITS r30, r29, HID0_ILOCK
+ bl PPC_HID0_wr /* Disable instruction cache lock */
IDUL_ICache_exit:
mtlr r26
@@ -854,47 +857,47 @@
PPC_HID0_rd: /* get HID0 content to r30 */
- mfspr r30, HID0
+ mfspr r30, HID0
- blr
+ blr
PPC_HID0_wr: /* put r30 content to HID0 */
- mtspr HID0, r30
+ mtspr HID0, r30
- blr
+ blr
clr_mem:
mr r28, r29
srwi r29, r29, 2
- mtctr r29 /* set ctr reg */
+ mtctr r29 /* set ctr reg */
- slwi r29, r29, 2
- sub r28, r28, r29 /* maybe some residual bytes */
- xor r29, r29, r29
+ slwi r29, r29, 2
+ sub r28, r28, r29 /* maybe some residual bytes */
+ xor r29, r29, r29
clr_mem_word:
- stswi r29, r30, 0x04 /* store r29 (word) to r30 memory location */
- addi r30, r30, 0x04 /* increment r30 */
+ stswi r29, r30, 0x04 /* store r29 (word) to r30 memory location */
+ addi r30, r30, 0x04 /* increment r30 */
- bdnz clr_mem_word /* dec counter and loop */
+ bdnz clr_mem_word /* dec counter and loop */
cmpwi r28, 0x00 /* clear mem. finished ? */
beq clr_mem_end;
- mtctr r28 /* reload counter for residual bytes */
+ mtctr r28 /* reload counter for residual bytes */
clr_mem_byte:
stswi r29, r30, 0x01 /* store r29 (byte) to r30 memory location */
addi r30, r30, 0x01 /* update r30 */
- bdnz clr_mem_byte /* dec counter and loop */
+ bdnz clr_mem_byte /* dec counter and loop */
clr_mem_end:
- blr /* return */
+ blr /* return */
XLB_init:
/* init arbiter and stuff... */
*strauman*:
2011-27-28 Till Straumann <strauman at slac.stanford.edu>
* start/start.S: Tag TOS with a NULL pointer
(help terminate when walking the stack).
M 1.58 c/src/lib/libbsp/powerpc/mvme3100/ChangeLog
M 1.8 c/src/lib/libbsp/powerpc/mvme3100/start/start.S
M 1.133 c/src/lib/libbsp/powerpc/mvme5500/ChangeLog
M 1.11 c/src/lib/libbsp/powerpc/mvme5500/start/start.S
diff -u rtems/c/src/lib/libbsp/powerpc/mvme3100/ChangeLog:1.57 rtems/c/src/lib/libbsp/powerpc/mvme3100/ChangeLog:1.58
--- rtems/c/src/lib/libbsp/powerpc/mvme3100/ChangeLog:1.57 Sat Jun 11 12:27:05 2011
+++ rtems/c/src/lib/libbsp/powerpc/mvme3100/ChangeLog Thu Jul 28 14:27:58 2011
@@ -1,3 +1,8 @@
+2011-27-28 Till Straumann <strauman at slac.stanford.edu>
+
+ * start/start.S: Tag TOS with a NULL pointer
+ (help terminate when walking the stack).
+
2011-06-11 Joel Sherrill <joel.sherrill at oarcorp.com>
* Makefile.am: Remove reference to wrapup directory.
diff -u rtems/c/src/lib/libbsp/powerpc/mvme3100/start/start.S:1.7 rtems/c/src/lib/libbsp/powerpc/mvme3100/start/start.S:1.8
--- rtems/c/src/lib/libbsp/powerpc/mvme3100/start/start.S:1.7 Fri Jan 28 14:29:51 2011
+++ rtems/c/src/lib/libbsp/powerpc/mvme3100/start/start.S Thu Jul 28 14:27:58 2011
@@ -78,6 +78,11 @@
/* align down to 16-bytes */
li r5, (CPU_STACK_ALIGNMENT - 1)
andc r1, r9, r5
+
+ /* NULL ptr to back chain */
+ li r0, 0
+ stw r0, 0(r1)
+
/*
* We are now in a environment that is totally independent from
* bootloader setup.
diff -u rtems/c/src/lib/libbsp/powerpc/mvme5500/ChangeLog:1.132 rtems/c/src/lib/libbsp/powerpc/mvme5500/ChangeLog:1.133
--- rtems/c/src/lib/libbsp/powerpc/mvme5500/ChangeLog:1.132 Wed Jul 13 13:35:22 2011
+++ rtems/c/src/lib/libbsp/powerpc/mvme5500/ChangeLog Thu Jul 28 14:25:52 2011
@@ -1,3 +1,8 @@
+2011-27-28 Till Straumann <strauman at slac.stanford.edu>
+
+ * start/start.S: Tag TOS with a NULL pointer
+ (help terminate when walking the stack).
+
2011-07-13 Joel Sherrill <joel.sherrilL at OARcorp.com>
PR 1824/cpukit
diff -u rtems/c/src/lib/libbsp/powerpc/mvme5500/start/start.S:1.10 rtems/c/src/lib/libbsp/powerpc/mvme5500/start/start.S:1.11
--- rtems/c/src/lib/libbsp/powerpc/mvme5500/start/start.S:1.10 Fri Jun 17 08:24:47 2011
+++ rtems/c/src/lib/libbsp/powerpc/mvme5500/start/start.S Thu Jul 28 14:25:52 2011
@@ -10,11 +10,7 @@
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
-<<<<<<< start.S
* $Id$
-=======
- * $Id$
->>>>>>> 1.25
*
*/
@@ -152,6 +148,12 @@
li r0, (CPU_STACK_ALIGNMENT-1)
andc r1, r9, r0
/*
+ * NULL ptr to back chain
+ */
+ li r0, 0
+ stw r0, 0(r1)
+
+ /*
* We are now in a environment that is totally independent from
* bootloader setup.
*/
*strauman*:
2011-27-28 Till Straumann <strauman at slac.stanford.edu>
* start/start.S: Align stack and tag TOS with a NULL
pointer (help terminate when walking the stack).
M 1.21 c/src/lib/libbsp/powerpc/qemuppc/ChangeLog
M 1.4 c/src/lib/libbsp/powerpc/qemuppc/start/start.S
diff -u rtems/c/src/lib/libbsp/powerpc/qemuppc/ChangeLog:1.20 rtems/c/src/lib/libbsp/powerpc/qemuppc/ChangeLog:1.21
--- rtems/c/src/lib/libbsp/powerpc/qemuppc/ChangeLog:1.20 Sat Jun 18 02:25:25 2011
+++ rtems/c/src/lib/libbsp/powerpc/qemuppc/ChangeLog Thu Jul 28 14:50:28 2011
@@ -1,3 +1,8 @@
+2011-27-28 Till Straumann <strauman at slac.stanford.edu>
+
+ * start/start.S: Align stack and tag TOS with a NULL
+ pointer (help terminate when walking the stack).
+
2011-06-18 Ralf Corsépius <ralf.corsepius at rtems.org>
* Makefile.am: Remove references to non-existing files.
diff -u rtems/c/src/lib/libbsp/powerpc/qemuppc/start/start.S:1.3 rtems/c/src/lib/libbsp/powerpc/qemuppc/start/start.S:1.4
--- rtems/c/src/lib/libbsp/powerpc/qemuppc/start/start.S:1.3 Sun Nov 29 22:34:19 2009
+++ rtems/c/src/lib/libbsp/powerpc/qemuppc/start/start.S Thu Jul 28 14:50:28 2011
@@ -1,12 +1,24 @@
+#include <rtems/score/cpu.h>
+#include <rtems/powerpc/powerpc.h>
+
+#include <bspopts.h>
+
#.section ".text"
.section .entry_point_section,"awx", at progbits
.global _start
_start:
- lis %r1,_stack at h
- ori %r1,%r1,_stack at l
- li %r3,8192
- mtmsr %r3
+ lis %r1,_stack at h
+ ori %r1,%r1,_stack at l
+ /* Make sure stack is properly aligned */
+ li %r3, CPU_STACK_ALIGNMENT - 1
+ andc %r1, %r1, %r3
+ /* NULL ptr to back chain */
+ li %r3, 0
+ stw %r3, 0(%r1)
+
+ li %r3,8192
+ mtmsr %r3
/* Read-only small data */
lis %r2, _SDA2_BASE_ at h
--
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