YourWishes/jerryscript
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Revive target: ESP8266

Browse Source 
This patch updates ESP8266 build system and code base as well.
 - Removed unnecessary files.
 - Decreased code size.
 - Refactored jerry_{port, extapi, run}.c to make it more easy to handle.
 - Readme.md is updated as well which contains detailed step by step description about how to set up environment and use JerryScript.

Finally, it solves the related issue #1375.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
This commit is contained in:
Robert Fancsik
2017-10-02 13:47:36 +02:00
committed by yichoi
parent bdcd2d8179
commit c3a9821171
18 changed files with 336 additions and 927 deletions
Download Patch File Download Diff File Expand all files Collapse all files
targets/esp8266/docs/ESP-PATCHFORJERRYSCRIPT.md
-75
View File
@@ -1,75 +0,0 @@
#### Apply patch to ESP8266 SDK
As `iram` is quite small to fit all the codes but linker tries to put it there.
To force JerryScript codes to be placed at the `irom` section,
need to change the order and tell the linker as below;
```
diff --git a/ld/eagle.app.v6.common.ld b/ld/eagle.app.v6.common.ld
index caf8e32..dadaceb 100644
--- a/ld/eagle.app.v6.common.ld
+++ b/ld/eagle.app.v6.common.ld
@@ -151,6 +151,21 @@ SECTIONS
} >dram0_0_seg :dram0_0_bss_phdr
/* __stack = 0x3ffc8000; */
+ .irom0.text : ALIGN(4)
+ {
+ _irom0_text_start = ABSOLUTE(.);
+ *(.irom0.literal .irom.literal .irom.text.literal .irom0.text .irom.text)
+ *(.literal.* .text.*)
+ _irom0_text_end = ABSOLUTE(.);
+
+ _jerry_text_start = ABSOLUTE(.);
+ *\libjerryentry.a:*(.text*)
+ *\libjerrycore.a:*(.text*)
+ *\libjerrylibm.a:*(.text*)
+ _jerry_text_end = ABSOLUTE(.);
+
+ } >irom0_0_seg :irom0_0_phdr
+
.text : ALIGN(4)
{
_stext = .;
@@ -199,13 +214,6 @@ SECTIONS
_lit4_end = ABSOLUTE(.);
} >iram1_0_seg :iram1_0_phdr
- .irom0.text : ALIGN(4)
- {
- _irom0_text_start = ABSOLUTE(.);
- *(.irom0.literal .irom.literal .irom.text.literal .irom0.text .irom.text)
- *(.literal.* .text.*)
- _irom0_text_end = ABSOLUTE(.);
- } >irom0_0_seg :irom0_0_phdr
}
/* get ROM code address */
diff --git a/ld/eagle.app.v6.ld b/ld/eagle.app.v6.ld
index 3e7ec1b..4a9ab5b 100644
--- a/ld/eagle.app.v6.ld
+++ b/ld/eagle.app.v6.ld
@@ -26,7 +26,7 @@ MEMORY
dport0_0_seg : org = 0x3FF00000, len = 0x10
dram0_0_seg : org = 0x3FFE8000, len = 0x14000
iram1_0_seg : org = 0x40100000, len = 0x8000
- irom0_0_seg : org = 0x40240000, len = 0x3C000
+ irom0_0_seg : org = 0x40240000, len = 0xB0000
}
INCLUDE "../ld/eagle.app.v6.common.ld"
```
Second file is to modify `irom` size so that it can hold all the codes and data.
This can be done by giving another `SPI_SIZE_MAP`.
For now, I'll use this manual modification.
#### Need to get setjmp / longjmp
Extract and copy from the SDK.
```
cd ~/harmony/jerryscript/targets/esp8266/libs
ar -xv $SDK_PATH/lib/libcirom.a lib_a-setjmp.o
```
targets/esp8266/docs/ESP-PREREQUISITES.md
+14 -18
View File
@@ -18,22 +18,24 @@ I've slightly changed the step to use SDK from Espressif official SDK
##### Toolchain:
dependencies for x86
dependencies
```
sudo apt-get install git autoconf build-essential gperf \
bison flex texinfo libtool libncurses5-dev wget \
gawk libc6-dev-i386 python-serial libexpat-dev
bison flex texinfo libtool libtool-bin libncurses5-dev wget \
gawk python-serial libexpat-dev
sudo mkdir /opt/Espressif
sudo chown $USER /opt/Espressif/
```
dependencies for x64
dependency specific to x86:
```
sudo apt-get install git autoconf build-essential gperf \
bison flex texinfo libtool libncurses5-dev wget \
gawk libc6-dev-amd64 python-serial libexpat-dev
sudo mkdir /opt/Espressif
sudo chown $USER /opt/Espressif/
sudo apt-get install libc6-dev-i386
```
dependency specific to x64:
```
sudo apt-get install libc6-dev-amd64
```
crosstool-NG
@@ -56,14 +58,10 @@ PATH=$PWD/builds/xtensa-lx106-elf/bin:$PATH
cd /opt/Esprissif
git clone https://github.com/espressif/ESP8266_RTOS_SDK.git ESP8266_RTOS_SDK.git
ln -s ESP8266_RTOS_SDK.git ESP8266_SDK
cd ESP8266_SDK
git checkout -b jerry a2b413ad2996450fe2f173b6afab243f6e1249aa
git checkout -b jerry 2fab9e23d779cdd6e5900b8ba2b588e30d9b08c4
```
We use SDK 1.2.0 version which has stdlib.h and others. Latest 1.3.0 version,
as of writing this document, doesn't have it.
(If anyone knows how to use latest version, please add an issue or send a PR.)
This verison is tested and works properly.
set two environment variables such as in .profile
```
@@ -126,7 +124,7 @@ make BOOT=new APP=0 SPI_SPEED=80 SPI_MODE=QIO SPI_SIZE_MAP=2
```
sudo /opt/Espressif/esptool-py/esptool.py \
--port /dev/ttyUSB0 write_flash \
0x00000 $SDK_PATH/bin/"boot_v1.4(b1).bin" \
0x00000 $SDK_PATH/bin/"boot_v1.7.bin" \
0x01000 $BIN_PATH/upgrade/user1.2048.new.5.bin \
0x101000 $BIN_PATH/upgrade/user2.2048.new.5.bin \
0x3FE000 $SDK_PATH/bin/blank.bin \
@@ -146,5 +144,3 @@ sudo /opt/Espressif/esptool-py/esptool.py \
* disconnect GPIO0 so that it is floating
* connect GPIO2 with serial of 470 Ohm + LED and to GND
* power On
LED should blink on and off every second