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Added new linker symbol pointing to end of read-only data

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Nathan Giddings
2023-03-03 04:52:58 -06:00
parent f66810d6ad
commit 035960f4d3
2 changed files with 2 additions and 0 deletions
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1
include/system.h
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@@ -4,4 +4,5 @@ extern int stack_top;
extern int _kernel_pstart; extern int _kernel_pstart;
extern int _kernel_pend; extern int _kernel_pend;
extern int _kernel_start; extern int _kernel_start;
extern int _kernel_tend;
extern int _kernel_end; extern int _kernel_end;

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src/x86/linker.ld Executable file → Normal file
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@@ -37,6 +37,7 @@ SECTIONS
_kernel_pstart = PHYSICAL_BASE; _kernel_pstart = PHYSICAL_BASE;
_kernel_pend = PHYSICAL_BASE + (4096 * IMAGE_SIZE); _kernel_pend = PHYSICAL_BASE + (4096 * IMAGE_SIZE);
_kernel_start = VIRTUAL_BASE; _kernel_start = VIRTUAL_BASE;
_kernel_tend = VIRTUAL_BASE + SIZEOF(.text) + SIZEOF(.rodata);
_kernel_end = VIRTUAL_BASE + (4096 * IMAGE_SIZE); _kernel_end = VIRTUAL_BASE + (4096 * IMAGE_SIZE);
_entry_paddr = _start - _kernel_start + _kernel_pstart; _entry_paddr = _start - _kernel_start + _kernel_pstart;
} }