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[i386] Simplify linker script and standardise linker-defined symbol names

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Reduce the number of sections within the linker script to match the
number of practical sections within the output file.

Define _section, _msection, _esection, _section_filesz, _section_memsz,
and _section_lma for each section, replacing the mixture of symbols that
previously existed.

In particular, replace _text and _end with _textdata and _etextdata, to
make it explicit within code that uses these symbols that the .text and
.data sections are always treated as a single contiguous block.
This commit is contained in:
Michael Brown
2008-10-09 22:22:01 +01:00
parent 3029eb0e84
commit 13d09e6719
11 changed files with 153 additions and 236 deletions
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8
src/arch/i386/core/relocate.c
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@@ -18,8 +18,8 @@ extern char _max_align[];
#define max_align ( ( unsigned int ) _max_align )
/* Linker symbols */
extern char _text[];
extern char _end[];
extern char _textdata[];
extern char _etextdata[];
/* within 1MB of 4GB is too close.
* MAX_ADDR is the maximum address we can easily do DMA to.
@@ -47,8 +47,8 @@ __cdecl void relocate ( struct i386_all_regs *ix86 ) {
/* Get memory map and current location */
get_memmap ( &memmap );
start = virt_to_phys ( _text );
end = virt_to_phys ( _end );
start = virt_to_phys ( _textdata );
end = virt_to_phys ( _etextdata );
size = ( end - start );
padded_size = ( size + max_align - 1 );