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-rw-r--r--demos/ARM7-LPC214x-G++/ch.ld2
-rw-r--r--demos/ARM7-LPC214x-GCC-minimal/ch.ld2
-rw-r--r--demos/ARM7-LPC214x-GCC/ch.ld2
-rw-r--r--demos/ARMCM3-STM32F103-GCC/ch.ld96
-rw-r--r--docs/reports/LPC2148-48-ARM.txt14
-rw-r--r--docs/reports/STM32F103-48.txt4
-rw-r--r--docs/reports/STM32F103-72.txt12
-rw-r--r--readme.txt8
8 files changed, 70 insertions, 70 deletions
diff --git a/demos/ARM7-LPC214x-G++/ch.ld b/demos/ARM7-LPC214x-G++/ch.ld
index b0425dbca..2bbea7477 100644
--- a/demos/ARM7-LPC214x-G++/ch.ld
+++ b/demos/ARM7-LPC214x-G++/ch.ld
@@ -45,7 +45,7 @@ SECTIONS
{
. = 0;
- .text :
+ .text : ALIGN(16) SUBALIGN(16)
{
_text = .;
KEEP(*(vectors))
diff --git a/demos/ARM7-LPC214x-GCC-minimal/ch.ld b/demos/ARM7-LPC214x-GCC-minimal/ch.ld
index b0425dbca..2bbea7477 100644
--- a/demos/ARM7-LPC214x-GCC-minimal/ch.ld
+++ b/demos/ARM7-LPC214x-GCC-minimal/ch.ld
@@ -45,7 +45,7 @@ SECTIONS
{
. = 0;
- .text :
+ .text : ALIGN(16) SUBALIGN(16)
{
_text = .;
KEEP(*(vectors))
diff --git a/demos/ARM7-LPC214x-GCC/ch.ld b/demos/ARM7-LPC214x-GCC/ch.ld
index b0425dbca..2bbea7477 100644
--- a/demos/ARM7-LPC214x-GCC/ch.ld
+++ b/demos/ARM7-LPC214x-GCC/ch.ld
@@ -45,7 +45,7 @@ SECTIONS
{
. = 0;
- .text :
+ .text : ALIGN(16) SUBALIGN(16)
{
_text = .;
KEEP(*(vectors))
diff --git a/demos/ARMCM3-STM32F103-GCC/ch.ld b/demos/ARMCM3-STM32F103-GCC/ch.ld
index f18ba7e5d..af13b206d 100644
--- a/demos/ARMCM3-STM32F103-GCC/ch.ld
+++ b/demos/ARMCM3-STM32F103-GCC/ch.ld
@@ -26,64 +26,64 @@ __stacks_total_size__ = __main_stack_size__ + __process_stack_size__;
MEMORY
{
- flash : org = 0x08000000, len = 128k
- ram : org = 0x20000000, len = 20k
+ flash : org = 0x08000000, len = 128k
+ ram : org = 0x20000000, len = 20k
}
-__ram_start__ = ORIGIN(ram);
-__ram_size__ = LENGTH(ram);
-__ram_end__ = __ram_start__ + __ram_size__;
+__ram_start__ = ORIGIN(ram);
+__ram_size__ = LENGTH(ram);
+__ram_end__ = __ram_start__ + __ram_size__;
SECTIONS
{
- . = 0;
+ . = 0;
- .text :
- {
- _text = .;
- KEEP(*(vectors));
- *(.text)
- *(.text.*);
- *(.rodata);
- *(.rodata.*);
- *(.glue_7t);
- *(.glue_7);
- *(.gcc*);
- *(.ctors);
- *(.dtors);
- . = ALIGN(4);
- _etext = .;
- } > flash
+ .text : ALIGN(16) SUBALIGN(16)
+ {
+ _text = .;
+ KEEP(*(vectors));
+ *(.text)
+ *(.text.*);
+ *(.rodata);
+ *(.rodata.*);
+ *(.glue_7t);
+ *(.glue_7);
+ *(.gcc*);
+ *(.ctors);
+ *(.dtors);
+ . = ALIGN(4);
+ _etext = .;
+ } > flash
- _textdata = _etext;
+ _textdata = _etext;
- .data :
- {
- _data = .;
- *(.data)
- . = ALIGN(4);
- *(.data.*)
- . = ALIGN(4);
- *(.ramtext)
- . = ALIGN(4);
- _edata = .;
- } > ram AT > flash
+ .data :
+ {
+ _data = .;
+ *(.data)
+ . = ALIGN(4);
+ *(.data.*)
+ . = ALIGN(4);
+ *(.ramtext)
+ . = ALIGN(4);
+ _edata = .;
+ } > ram AT > flash
- .bss :
- {
- _bss_start = .;
- *(.bss)
- . = ALIGN(4);
- *(.bss.*)
- . = ALIGN(4);
- *(COMMON)
- . = ALIGN(4);
- _bss_end = .;
- } > ram
+ .bss :
+ {
+ _bss_start = .;
+ *(.bss)
+ . = ALIGN(4);
+ *(.bss.*)
+ . = ALIGN(4);
+ *(COMMON)
+ . = ALIGN(4);
+ _bss_end = .;
+ } > ram
}
PROVIDE(end = .);
-_end = .;
+_end = .;
-__heap_base__ = _end;
-__heap_end__ = __ram_end__ - __stacks_total_size__;
+__heap_base__ = _end;
+__heap_end__ = __ram_end__ - __stacks_total_size__;
diff --git a/docs/reports/LPC2148-48-ARM.txt b/docs/reports/LPC2148-48-ARM.txt
index 49950b73e..0b385422a 100644
--- a/docs/reports/LPC2148-48-ARM.txt
+++ b/docs/reports/LPC2148-48-ARM.txt
@@ -1,5 +1,5 @@
***************************************************************************
-Kernel: ChibiOS/RT 0.8.0
+Kernel: ChibiOS/RT 0.8.2
Compiler: GCC 4.3.2 (YAGARTO 28.09.2008)
Options: -O2 -fomit-frame-pointer -mabi=apcs-gnu -falign-functions=16
Settings: CCLK=48, MAMCR=2, MAMTIM=3 (3 wait states)
@@ -53,7 +53,7 @@ Settings: CCLK=48, MAMCR=2, MAMTIM=3 (3 wait states)
--- Result: SUCCESS
---------------------------------------------------------------------------
--- Test Case 16 (Benchmark, context switch #1, optimal)
---- Score : 144452 msgs/S, 288904 ctxswc/S
+--- Score : 144451 msgs/S, 288902 ctxswc/S
--- Result: SUCCESS
---------------------------------------------------------------------------
--- Test Case 17 (Benchmark, context switch #2, empty ready list)
@@ -65,23 +65,23 @@ Settings: CCLK=48, MAMCR=2, MAMTIM=3 (3 wait states)
--- Result: SUCCESS
---------------------------------------------------------------------------
--- Test Case 19 (Benchmark, threads creation/termination, worst case)
---- Score : 86776 threads/S
+--- Score : 92663 threads/S
--- Result: SUCCESS
---------------------------------------------------------------------------
--- Test Case 20 (Benchmark, threads creation/termination, optimal)
---- Score : 119534 threads/S
+--- Score : 122600 threads/S
--- Result: SUCCESS
---------------------------------------------------------------------------
--- Test Case 21 (Benchmark, mass reschedulation, 5 threads)
---- Score : 36005 reschedulations/S, 216030 ctxswc/S
+--- Score : 36006 reschedulations/S, 216036 ctxswc/S
--- Result: SUCCESS
---------------------------------------------------------------------------
--- Test Case 22 (Benchmark, I/O Queues throughput)
---- Score : 341232 bytes/S
+--- Score : 341236 bytes/S
--- Result: SUCCESS
---------------------------------------------------------------------------
--- Test Case 23 (Benchmark, virtual timers set/reset)
---- Score : 309498 timers/S
+--- Score : 309496 timers/S
--- Result: SUCCESS
---------------------------------------------------------------------------
diff --git a/docs/reports/STM32F103-48.txt b/docs/reports/STM32F103-48.txt
index bef27a35c..18b35cd02 100644
--- a/docs/reports/STM32F103-48.txt
+++ b/docs/reports/STM32F103-48.txt
@@ -5,10 +5,6 @@ Options: -O2 -fomit-frame-pointer -mabi=apcs-gnu -falign-functions=16
Settings: SYSCLK=48, ACR=0x11 (1 wait state)
***************************************************************************
-*****************************
-*** ChibiOS/RT test suite ***
-*****************************
-
---------------------------------------------------------------------------
--- Test Case 1 (Ready List, priority enqueuing test #1)
--- Result: SUCCESS
diff --git a/docs/reports/STM32F103-72.txt b/docs/reports/STM32F103-72.txt
index 20f82a64b..9f9a5ed7d 100644
--- a/docs/reports/STM32F103-72.txt
+++ b/docs/reports/STM32F103-72.txt
@@ -1,14 +1,10 @@
***************************************************************************
-Kernel: ChibiOS/RT 0.8.0
+Kernel: ChibiOS/RT 0.8.2
Compiler: GCC 4.3.2 (YAGARTO 28.09.2008)
Options: -O2 -fomit-frame-pointer -mabi=apcs-gnu -falign-functions=16
Settings: SYSCLK=72, ACR=0x12 (2 wait states)
***************************************************************************
-*****************************
-*** ChibiOS/RT test suite ***
-*****************************
-
---------------------------------------------------------------------------
--- Test Case 1 (Ready List, priority enqueuing test #1)
--- Result: SUCCESS
@@ -44,7 +40,7 @@ Settings: SYSCLK=72, ACR=0x12 (2 wait states)
--- Result: SUCCESS
---------------------------------------------------------------------------
--- Test Case 12 (Heap, allocation and fragmentation test)
---- Size : 17252 bytes, not fragmented
+--- Size : 17224 bytes, not fragmented
--- Result: SUCCESS
---------------------------------------------------------------------------
--- Test Case 13 (Memory Pools, allocation and enqueuing test)
@@ -69,11 +65,11 @@ Settings: SYSCLK=72, ACR=0x12 (2 wait states)
--- Result: SUCCESS
---------------------------------------------------------------------------
--- Test Case 19 (Benchmark, threads creation/termination, worst case)
---- Score : 141666 threads/S
+--- Score : 149938 threads/S
--- Result: SUCCESS
---------------------------------------------------------------------------
--- Test Case 20 (Benchmark, threads creation/termination, optimal)
---- Score : 188024 threads/S
+--- Score : 187045 threads/S
--- Result: SUCCESS
---------------------------------------------------------------------------
--- Test Case 21 (Benchmark, mass reschedulation, 5 threads)
diff --git a/readme.txt b/readme.txt
index c5a79c7be..8bad7553b 100644
--- a/readme.txt
+++ b/readme.txt
@@ -87,6 +87,14 @@ Win32-MinGW - ChibiOS/RT simulator and demo into a WIN32 process,
WORKING_AREA(), THD_WA_SIZE() and STACK_ALIGN() instead.
- CHANGE: Renamed the default idle thread function from _IdleThread() to
_idle().
+- Added to the LPC2148 and STM32 load scripts the options "ALIGN(16)
+ SUBALIGN(16)" to the flash loading section in order to enforce the alignment
+ for both the code and read only data. This is done in order to obtain more
+ accurate timings from benchmarks, those families have 16 bytes
+ prefetch buffers and are very sensitive to alignment changes.
+ You can remove those options in order to save some flash space if accurate
+ response time is not on top of your priorities, it mainly depends on your
+ requirements.
*** 0.8.1 ***
- FIX: Fixed a regression in version 0.8.0, the configuration switch
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-16 13:52:24 +0000