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| author | Kevin O'Connor <kevin@koconnor.net> | 2018-07-27 19:21:02 -0400 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2018-08-07 00:02:44 -0400 |
| commit | 71db5fbe316feb863b5c67bb7f9bb928c0decbe2 (patch) | |
| tree | 32be38f8423228353a21bc4bcd38b684bfcb0514 | |
| parent | 5633e6c249270f6c2361a754e8c330c88c014ecf (diff) | |
| download | kutter-71db5fbe316feb863b5c67bb7f9bb928c0decbe2.tar.gz kutter-71db5fbe316feb863b5c67bb7f9bb928c0decbe2.tar.xz kutter-71db5fbe316feb863b5c67bb7f9bb928c0decbe2.zip | |
lib: Update samd21 code with local changes
A minor change is necessary to work with GCC's -flto and to work with
common bootloaders.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
| -rw-r--r-- | lib/README | 4 | ||||
| -rw-r--r-- | lib/samd21/samd21.patch | 26 | ||||
| -rw-r--r-- | lib/samd21/samd21a/gcc/gcc/samd21g18a_flash.ld | 2 | ||||
| -rw-r--r-- | lib/samd21/samd21a/gcc/gcc/startup_samd21.c | 2 |
4 files changed, 31 insertions, 3 deletions
@@ -21,7 +21,9 @@ compile with gcc's LTO feature. See sam3x.patch for the modifications. The samd21 directory contains code from the Atmel.SAMD21_DFP.1.3.304.atpack zip file found at: http://packs.download.atmel.com/ -version 1.3.304 (extracted on 20180725). +version 1.3.304 (extracted on 20180725). It has been modified to +compile with gcc's LTO feature and to work with chips that have a +bootloader. See samd21.patch for the modifications. The lpc176x directory contains code from the mbed project: https://github.com/ARMmbed/mbed-os diff --git a/lib/samd21/samd21.patch b/lib/samd21/samd21.patch new file mode 100644 index 00000000..ae7d7670 --- /dev/null +++ b/lib/samd21/samd21.patch @@ -0,0 +1,26 @@ +diff --git a/lib/samd21/samd21a/gcc/gcc/samd21g18a_flash.ld b/lib/samd21/samd21a/gcc/gcc/samd21g18a_flash.ld +index c6f289e7..34dfb6ba 100644 +--- a/lib/samd21/samd21a/gcc/gcc/samd21g18a_flash.ld ++++ b/lib/samd21/samd21a/gcc/gcc/samd21g18a_flash.ld +@@ -35,7 +35,7 @@ SEARCH_DIR(.) + /* Memory Spaces Definitions */
+ MEMORY
+ {
+- rom (rx) : ORIGIN = 0x00000000, LENGTH = 0x00040000
++ rom (rx) : ORIGIN = 0x00000000 + FLASH_START , LENGTH = 0x00040000 - FLASH_START
+ ram (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008000
+ }
+
+diff --git a/lib/samd21/samd21a/gcc/gcc/startup_samd21.c b/lib/samd21/samd21a/gcc/gcc/startup_samd21.c +index 3dce0edd..a480077f 100644 +--- a/lib/samd21/samd21a/gcc/gcc/startup_samd21.c ++++ b/lib/samd21/samd21a/gcc/gcc/startup_samd21.c +@@ -105,7 +105,7 @@ void PTC_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler + void I2S_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+
+ /* Exception Table */
+-__attribute__ ((section(".vectors")))
++__attribute__ ((section(".vectors"))) __attribute__((externally_visible))
+ const DeviceVectors exception_table = {
+
+ /* Configure Initial Stack Pointer, using linker-generated symbols */
diff --git a/lib/samd21/samd21a/gcc/gcc/samd21g18a_flash.ld b/lib/samd21/samd21a/gcc/gcc/samd21g18a_flash.ld index c6f289e7..34dfb6ba 100644 --- a/lib/samd21/samd21a/gcc/gcc/samd21g18a_flash.ld +++ b/lib/samd21/samd21a/gcc/gcc/samd21g18a_flash.ld @@ -35,7 +35,7 @@ SEARCH_DIR(.) /* Memory Spaces Definitions */
MEMORY
{
- rom (rx) : ORIGIN = 0x00000000, LENGTH = 0x00040000
+ rom (rx) : ORIGIN = 0x00000000 + FLASH_START , LENGTH = 0x00040000 - FLASH_START
ram (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008000
}
diff --git a/lib/samd21/samd21a/gcc/gcc/startup_samd21.c b/lib/samd21/samd21a/gcc/gcc/startup_samd21.c index 3dce0edd..a480077f 100644 --- a/lib/samd21/samd21a/gcc/gcc/startup_samd21.c +++ b/lib/samd21/samd21a/gcc/gcc/startup_samd21.c @@ -105,7 +105,7 @@ void PTC_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler void I2S_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
/* Exception Table */
-__attribute__ ((section(".vectors")))
+__attribute__ ((section(".vectors"))) __attribute__((externally_visible))
const DeviceVectors exception_table = {
/* Configure Initial Stack Pointer, using linker-generated symbols */
|