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[exosphere] Rewrite crt0/init and ld script

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This commit is contained in:
TuxSH
2018-05-11 14:07:37 +02:00
parent 02e01360fd
commit 05b8b42164
11 changed files with 160 additions and 177 deletions
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123
exosphere/linker.ld
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@@ -3,7 +3,9 @@ ENTRY(__start_cold)
MEMORY
{
fake : ORIGIN = 0, LENGTH = 4096M
NULL : ORIGIN = 0, LENGTH = 4K
ccrt0 : ORIGIN = 0x040006000, LENGTH = 4K
glob : ORIGIN = 0x040020000, LENGTH = 128K
tzram : ORIGIN = 0x07C010000, LENGTH = 64K
/*
The warmboot crt0 is preceeded by the exception vector page and the L2 and L3 translation tables.
@@ -12,7 +14,7 @@ MEMORY
*/
warmboot_crt0 : ORIGIN = ORIGIN(tzram) + 12K, LENGTH = 2K
/* 8K are the MMU L2 and L3 tables & 2K from the evt page */
/* 8K are the MMU L2 and L3 tables & 2K from the evt page */
main : ORIGIN = 0x1F01E0000 + LENGTH(warmboot_crt0), LENGTH = LENGTH(tzram) - LENGTH(pk2ldr) - LENGTH(evt) - LENGTH(warmboot_crt0) - 10K
pk2ldr : ORIGIN = ORIGIN(main) - LENGTH(warmboot_crt0) + LENGTH(tzram), LENGTH = 8K
/* The first half of the page are exception entry stacks, the other half are the vectors themselves */
@@ -21,12 +23,14 @@ MEMORY
SECTIONS
{
PROVIDE(__start__ = 0x0);
PROVIDE(__start__ = 0x040006000);
. = __start__;
.cold_crt0 :
{
. = ALIGN(64);
__cold_crt0_start__ = ABSOLUTE(.);
__glob_origin__ = ORIGIN(glob);
KEEP (*(.cold_crt0.text.start)) /* MUST be first */
KEEP (*(.cold_crt0.text*))
KEEP (build/coldboot_init.o(.text*))
@@ -36,9 +40,10 @@ SECTIONS
build/coldboot_init.o(.data*)
. = ALIGN(8);
*(.cold_crt0.bss*)
build/coldboot_init.o(.bss*)
build/coldboot_init.o(.bss* COMMON)
. = ALIGN(64);
} >fake AT>fake
__cold_crt0_end__ = ABSOLUTE(.);
} >ccrt0 AT>glob
.pk2ldr :
{
@@ -49,16 +54,16 @@ SECTIONS
build/package2.o(.rodata*)
build/package2.o(.data*)
. = ALIGN(8);
} >pk2ldr AT>fake
} >pk2ldr AT>glob
.pk2ldr.bss :
{
. = ALIGN(8);
__pk2ldr_bss_start__ = ABSOLUTE(.);
build/package2.o(.bss*)
build/package2.o(.bss* COMMON)
. = ALIGN(8);
__pk2ldr_end__ = ABSOLUTE(.);
} >pk2ldr AT>fake
} >pk2ldr AT>glob
.vectors :
{
@@ -68,7 +73,7 @@ SECTIONS
KEEP (*(.vectors*))
. = ALIGN(8);
__vectors_end__ = ABSOLUTE(.);
} >evt AT>fake
} >evt AT>glob
.warm_crt0 :
{
@@ -87,7 +92,7 @@ SECTIONS
build/warmboot_init.o(.bss*)
. = ALIGN(64);
__warmboot_crt0_end__ = ABSOLUTE(.);
} >warmboot_crt0 AT>fake
} >warmboot_crt0 AT>glob
.text :
{
@@ -100,37 +105,37 @@ SECTIONS
*(.text.hot .text.hot.*)
*(.text .stub .text.* .gnu.linkonce.t.*)
. = ALIGN(8);
} >main AT>fake
} >main AT>glob
.init :
{
KEEP( *(.init) )
. = ALIGN(8);
} >main AT>fake
} >main AT>glob
.plt :
{
*(.plt)
*(.iplt)
. = ALIGN(8);
} >main AT>fake
} >main AT>glob
.fini :
{
KEEP( *(.fini) )
. = ALIGN(8);
} >main AT>fake
} >main AT>glob
.rodata :
{
*(.rodata .rodata.* .gnu.linkonce.r.*)
SORT(CONSTRUCTORS)
. = ALIGN(8);
} >main AT>fake
} >main AT>glob
.got : { __got_start__ = ABSOLUTE(.); *(.got) *(.igot) } >main AT>fake
.got.plt : { *(.got.plt) *(.igot.plt) __got_end__ = ABSOLUTE(.);} >main AT>fake
.got : { __got_start__ = ABSOLUTE(.); *(.got) *(.igot) } >main AT>glob
.got.plt : { *(.got.plt) *(.igot.plt) __got_end__ = ABSOLUTE(.);} >main AT>glob
.preinit_array :
{
@@ -139,7 +144,7 @@ SECTIONS
KEEP (*(.preinit_array))
PROVIDE (__preinit_array_end = .);
. = ALIGN(8);
} >main AT>fake
} >main AT>glob
.init_array :
{
@@ -147,7 +152,7 @@ SECTIONS
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array))
PROVIDE (__init_array_end = .);
} >main AT>fake
} >main AT>glob
.fini_array :
{
@@ -157,7 +162,7 @@ SECTIONS
KEEP (*(SORT(.fini_array.*)))
PROVIDE (__fini_array_end = .);
. = ALIGN(8);
} >main AT>fake
} >main AT>glob
.ctors :
{
@@ -167,7 +172,7 @@ SECTIONS
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
. = ALIGN(8);
} >main AT>fake
} >main AT>glob
.dtors ALIGN(8) :
{
@@ -177,33 +182,33 @@ SECTIONS
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
. = ALIGN(8);
} >main AT>fake
} >main AT>glob
.data ALIGN(8) :
{
*(.data .data.* .gnu.linkonce.d.*)
CONSTRUCTORS
. = ALIGN(8);
} >main AT>fake
} >main AT>glob
.eh_frame_hdr : { *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) } >main AT>fake
.eh_frame : { KEEP (*(.eh_frame)) *(.eh_frame.*) } >main AT>fake
.gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) } >main AT>fake
.gnu_extab : { *(.gnu_extab*) } >main AT>fake
.exception_ranges : { *(.exception_ranges .exception_ranges*) } >main AT>fake
.eh_frame_hdr : { *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) } >main AT>glob
.eh_frame : { KEEP (*(.eh_frame)) *(.eh_frame.*) } >main AT>glob
.gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) } >main AT>glob
.gnu_extab : { *(.gnu_extab*) } >main AT>glob
.exception_ranges : { *(.exception_ranges .exception_ranges*) } >main AT>glob
.dynamic : { *(.dynamic) } >main AT>fake
.interp : { *(.interp) } >main AT>fake
.note.gnu.build-id : { *(.note.gnu.build-id) } >main AT>fake
.hash : { *(.hash) } >main AT>fake
.gnu.hash : { *(.gnu.hash) } >main AT>fake
.gnu.version : { *(.gnu.version) } >main AT>fake
.gnu.version_d : { *(.gnu.version_d) } >main AT>fake
.gnu.version_r : { *(.gnu.version_r) } >main AT>fake
.dynsym : { *(.dynsym) } >main AT>fake
.dynstr : { *(.dynstr) } >main AT>fake
.rela.dyn : { *(.rela.*); __main_end__ = ABSOLUTE(.);} >main AT>fake
.dynamic : { *(.dynamic) } >main AT>glob
.interp : { *(.interp) } >main AT>glob
.note.gnu.build-id : { *(.note.gnu.build-id) } >main AT>glob
.hash : { *(.hash) } >main AT>glob
.gnu.hash : { *(.gnu.hash) } >main AT>glob
.gnu.version : { *(.gnu.version) } >main AT>glob
.gnu.version_d : { *(.gnu.version_d) } >main AT>glob
.gnu.version_r : { *(.gnu.version_r) } >main AT>glob
.dynsym : { *(.dynsym) } >main AT>glob
.dynstr : { *(.dynstr) } >main AT>glob
.rela.dyn : { *(.rela.*); __main_end__ = ABSOLUTE(.);} >main AT>glob
.bss :
{
@@ -215,7 +220,7 @@ SECTIONS
*(COMMON)
. = ALIGN(8);
__main_end__ = ABSOLUTE(.);
} >main AT>fake
} >main AT>glob
__end__ = ABSOLUTE(.) ;
@@ -230,35 +235,35 @@ SECTIONS
/DISCARD/ : { *(.group .comment .note) }
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.stab 0 : { *(.stab) } AT>glob
.stabstr 0 : { *(.stabstr) } AT>glob
.stab.excl 0 : { *(.stab.excl) } AT>glob
.stab.exclstr 0 : { *(.stab.exclstr) } AT>glob
.stab.index 0 : { *(.stab.index) } AT>glob
.stab.indexstr 0 : { *(.stab.indexstr) } AT>glob
/* DWARF debug sections.
Symbols in the DWARF debugging sections are relative to the beginning
of the section so we begin them at 0. */
/* DWARF 1 */
.debug 0 : { *(.debug) }
.line 0 : { *(.line) }
.debug 0 : { *(.debug) } AT>glob
.line 0 : { *(.line) } AT>glob
/* GNU DWARF 1 extensions */
.debug_srcinfo 0 : { *(.debug_srcinfo) }
.debug_sfnames 0 : { *(.debug_sfnames) }
.debug_srcinfo 0 : { *(.debug_srcinfo) } AT>glob
.debug_sfnames 0 : { *(.debug_sfnames) } AT>glob
/* DWARF 1.1 and DWARF 2 */
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) } AT>glob
.debug_pubnames 0 : { *(.debug_pubnames) } AT>glob
/* DWARF 2 */
.debug_info 0 : { *(.debug_info) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
.debug_info 0 : { *(.debug_info) } AT>glob
.debug_abbrev 0 : { *(.debug_abbrev) } AT>glob
.debug_line 0 : { *(.debug_line) } AT>glob
.debug_frame 0 : { *(.debug_frame) } AT>glob
.debug_str 0 : { *(.debug_str) } AT>glob
.debug_loc 0 : { *(.debug_loc) } AT>glob
.debug_macinfo 0 : { *(.debug_macinfo) } AT>glob
}