如何在 GNU LD 中实现自定义输出部分？
How to implement custom output section in GNU LD?
我正在尝试了解如何在我的应用程序的 LD 文件中定义自定义输出部分。到目前为止，这就是我想出的...
MEMORY
{
...
m_my_custom_section (RW) : ORIGIN = 0x00002400, LENGTH = 0x00000400
...
}
SECTIONS
{
...
.my_custom_section :
{
. = ALIGN(4);
KEEP(*(.my_custom_section))
. = ALIGN(4);
} > m_my_custom_section
...
}
不幸的是，这就是我被困的地方。当应用程序链接时，我不确定如何指定要将我的代码的哪些部分分配给该部分。任何帮助都会很棒。 :)
我相信我找到了答案:
In Standard C or C++ there are no syntactic means to define sections. Section definition normally is entirely the compiler's business. A compiler may have non-standard extensions that let you assign an object to a named section. For GCC see the documentation of __attribute__ ((section ("<section-name>"))) in Common Variable Attributes and Common Function Attributes Such extensions are for specialized purposes.
我正在尝试了解如何在我的应用程序的 LD 文件中定义自定义输出部分。到目前为止，这就是我想出的...
MEMORY
{
...
m_my_custom_section (RW) : ORIGIN = 0x00002400, LENGTH = 0x00000400
...
}
SECTIONS
{
...
.my_custom_section :
{
. = ALIGN(4);
KEEP(*(.my_custom_section))
. = ALIGN(4);
} > m_my_custom_section
...
}
不幸的是，这就是我被困的地方。当应用程序链接时，我不确定如何指定要将我的代码的哪些部分分配给该部分。任何帮助都会很棒。 :)
我相信我找到了答案
In Standard C or C++ there are no syntactic means to define sections. Section definition normally is entirely the compiler's business. A compiler may have non-standard extensions that let you assign an object to a named section. For GCC see the documentation of
__attribute__ ((section ("<section-name>")))in Common Variable Attributes and Common Function Attributes Such extensions are for specialized purposes.