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In stm32fx's stm32_rom.ld, add symbol - '_stext' to support lua a. Update lua's README.TXT
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2410 bbd45198-f89e-11dd-88c7-29a3b14d5316
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@ -17,6 +17,7 @@ SECTIONS
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.text :
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.text :
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{
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{
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. = ALIGN(4);
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. = ALIGN(4);
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_stext = .;
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KEEP(*(.isr_vector)) /* Startup code */
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KEEP(*(.isr_vector)) /* Startup code */
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. = ALIGN(4);
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. = ALIGN(4);
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*(.text) /* remaining code */
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*(.text) /* remaining code */
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@ -17,6 +17,7 @@ SECTIONS
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.text :
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.text :
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{
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{
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. = ALIGN(4);
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. = ALIGN(4);
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_stext = .;
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KEEP(*(.isr_vector)) /* Startup code */
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KEEP(*(.isr_vector)) /* Startup code */
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. = ALIGN(4);
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. = ALIGN(4);
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*(.text) /* remaining code */
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*(.text) /* remaining code */
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@ -17,6 +17,7 @@ SECTIONS
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.text :
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.text :
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{
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{
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. = ALIGN(4);
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. = ALIGN(4);
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_stext = .;
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KEEP(*(.isr_vector)) /* Startup code */
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KEEP(*(.isr_vector)) /* Startup code */
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. = ALIGN(4);
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. = ALIGN(4);
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*(.text) /* remaining code */
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*(.text) /* remaining code */
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@ -17,6 +17,7 @@ SECTIONS
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.text :
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.text :
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{
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{
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. = ALIGN(4);
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. = ALIGN(4);
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_stext = .;
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KEEP(*(.isr_vector)) /* Startup code */
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KEEP(*(.isr_vector)) /* Startup code */
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. = ALIGN(4);
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. = ALIGN(4);
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*(.text) /* remaining code */
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*(.text) /* remaining code */
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9
components/external/lua/README.TXT
vendored
9
components/external/lua/README.TXT
vendored
@ -2,7 +2,7 @@
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## 简介
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## 简介
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RT-Thread中的Lua修改自[eLua](http://www.eluaproject.net/)的Lua-5.1.4版本。
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RT-Thread中的Lua修改自[eLua](http://www.eluaproject.net/)的Lua-5.1.4版本。
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Lua依赖于Neblib库。
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采用gcc工具链时,Lua依赖于newlib库,其它工具链暂时还不支持。
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启动lua的RAM占用情况
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启动lua的RAM占用情况
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- 标准的lua 17.1904296875 KB
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- 标准的lua 17.1904296875 KB
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- 优化的lua 5.01953125 KB
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- 优化的lua 5.01953125 KB
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@ -24,13 +24,14 @@ Lua依赖于Neblib库。
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3.更多的配置项可以在luaconf.h中找到
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3.更多的配置项可以在luaconf.h中找到
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## 开发相关
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## 开发相关
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- 采用gcc工具链时,依赖于newlib,需在rtconfig.h中定义RT_USING_NEWLIB
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- 开启编译器对C99的支持,如MDK中,在C/C++选项的Misc Controls输入框中添加--c99
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- 开启编译器对C99的支持,如MDK中,在C/C++选项的Misc Controls输入框中添加--c99
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- 开启内存优化时:需要在链接脚本中定义_stext和_etext,.ordata*放在两者之间。
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- 需要在链接脚本中定义_stext和_etext,.ordata*放在两者之间。
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用于判断数据是read-only和writable。MDK中如何实现??
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用于判断数据是read-only和writable。MDK中如何实现??
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- 添加新的模块,参见larduinolib.c
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- 添加新的模块,参见lexample.c
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## 目录说明
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## 目录说明
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- lua:从eLua获得Lua-5.1.4版本代码
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- lua:从eLua获得Lua-5.1.4版本代码
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- exlibs:external libraries,外部库代码,如Arduino库
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- exlibs:external libraries,外部库代码,如example库
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- applications:Lua应用代码,如finsh中lua()
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- applications:Lua应用代码,如finsh中lua()
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- test:测试代码
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- test:测试代码
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@ -197,7 +197,6 @@ _wait_r(struct _reent *ptr, int *status)
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_ssize_t
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_ssize_t
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_write_r(struct _reent *ptr, int fd, const void *buf, size_t nbytes)
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_write_r(struct _reent *ptr, int fd, const void *buf, size_t nbytes)
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{
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{
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#ifndef RT_USING_DFS
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if (fd < 3)
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if (fd < 3)
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{
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{
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rt_device_t console_device;
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rt_device_t console_device;
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@ -207,13 +206,13 @@ _write_r(struct _reent *ptr, int fd, const void *buf, size_t nbytes)
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if (console_device != 0) rt_device_write(console_device, 0, buf, nbytes);
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if (console_device != 0) rt_device_write(console_device, 0, buf, nbytes);
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return nbytes;
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return nbytes;
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}
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}
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return 0;
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else
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#else
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{
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_ssize_t rc;
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_ssize_t rc;
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rc = write(fd, buf, nbytes);
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rc = write(fd, buf, nbytes);
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return rc;
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return rc;
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#endif
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}
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}
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}
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#endif
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#endif
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