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thermosphere: rework linkscrips, use discardable sections, better sp pivot on crash

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This commit is contained in:
TuxSH 2019-08-02 00:47:48 +02:00
parent e6c5eb3928
commit e0339049b3
9 changed files with 92 additions and 56 deletions
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80
thermosphere/linker.ld
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@ -1,6 +1,11 @@
OUTPUT_ARCH(aarch64)
ENTRY(_start)
PHDRS
{
main PT_LOAD;
}
SECTIONS
{
PROVIDE(__start__ = ORIGIN(main));
@ -19,37 +24,37 @@ SECTIONS
__vectors_start__ = ABSOLUTE(.);
KEEP(*(.vectors*));
. = ALIGN(8);
} >main
} >main :main
.init :
{
KEEP( *(.init) )
. = ALIGN(8);
} >main
} >main :main
.plt :
{
*(.plt)
*(.iplt)
. = ALIGN(8);
} >main
} >main :main
.fini :
{
KEEP( *(.fini) )
. = ALIGN(8);
} >main
} >main :main
.rodata :
{
*(.rodata .rodata.* .gnu.linkonce.r.*)
SORT(CONSTRUCTORS)
. = ALIGN(8);
} >main
} >main :main
.got : { __got_start__ = ABSOLUTE(.); *(.got) *(.igot) } >main
.got.plt : { *(.got.plt) *(.igot.plt) __got_end__ = ABSOLUTE(.);} >main
.got : { __got_start__ = ABSOLUTE(.); *(.got) *(.igot) } >main :main
.got.plt : { *(.got.plt) *(.igot.plt) __got_end__ = ABSOLUTE(.);} >main :main
.preinit_array :
{
@ -58,7 +63,7 @@ SECTIONS
KEEP (*(.preinit_array))
PROVIDE (__preinit_array_end = ABSOLUTE(.));
. = ALIGN(8);
} >main
} >main :main
.init_array :
{
@ -66,7 +71,7 @@ SECTIONS
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array))
PROVIDE (__init_array_end = ABSOLUTE(.));
} >main
} >main :main
.fini_array :
{
@ -76,7 +81,7 @@ SECTIONS
KEEP (*(SORT(.fini_array.*)))
PROVIDE (__fini_array_end = ABSOLUTE(.));
. = ALIGN(8);
} >main
} >main :main
.ctors :
{
@ -86,7 +91,7 @@ SECTIONS
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
. = ALIGN(8);
} >main
} >main :main
.dtors ALIGN(8) :
{
@ -96,35 +101,35 @@ SECTIONS
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
. = ALIGN(8);
} >main
} >main :main
.data ALIGN(8) :
{
*(.data .data.* .gnu.linkonce.d.*)
CONSTRUCTORS
. = ALIGN(8);
} >main
} >main :main
.eh_frame_hdr : { *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) } >main
.eh_frame : { KEEP (*(.eh_frame)) *(.eh_frame.*) } >main
.gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) } >main
.gnu_extab : { *(.gnu_extab*) } >main
.exception_ranges : { *(.exception_ranges .exception_ranges*) } >main
.eh_frame_hdr : { *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) } >main :main
.eh_frame : { KEEP (*(.eh_frame)) *(.eh_frame.*) } >main :main
.gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) } >main :main
.gnu_extab : { *(.gnu_extab*) } >main :main
.exception_ranges : { *(.exception_ranges .exception_ranges*) } >main :main
.dynamic : { *(.dynamic) } >main
.interp : { *(.interp) } >main
.note.gnu.build-id : { *(.note.gnu.build-id) } >main
.hash : { *(.hash) } >main
.gnu.hash : { *(.gnu.hash) } >main
.gnu.version : { *(.gnu.version) } >main
.gnu.version_d : { *(.gnu.version_d) } >main
.gnu.version_r : { *(.gnu.version_r) } >main
.dynsym : { *(.dynsym) } >main
.dynstr : { *(.dynstr) } >main
.rela.dyn : { *(.rela.*); __main_end__ = ABSOLUTE(.);} >main
.dynamic : { *(.dynamic) } >main :main
.interp : { *(.interp) } >main :main
.note.gnu.build-id : { *(.note.gnu.build-id) } >main :main
.hash : { *(.hash) } >main :main
.gnu.hash : { *(.gnu.hash) } >main :main
.gnu.version : { *(.gnu.version) } >main :main
.gnu.version_d : { *(.gnu.version_d) } >main :main
.gnu.version_r : { *(.gnu.version_r) } >main :main
.dynsym : { *(.dynsym) } >main :main
.dynstr : { *(.dynstr) } >main :main
.rela.dyn : { *(.rela.*); __main_end__ = ABSOLUTE(.);} >main :main
.bss :
.bss (NOLOAD) :
{
. = ALIGN(8);
__bss_start__ = ABSOLUTE(.);
@ -133,13 +138,22 @@ SECTIONS
*(COMMON)
. = ALIGN(8);
__end__ = ABSOLUTE(.);
} >main
} >main :NONE
. = ALIGN(0x1000);
__end__ = ABSOLUTE(.) ;
__stacks_top__ = ABSOLUTE(. + 0x1000);
__excep_stacks_top__ = ABSOLUTE(. + 0x2000); /* Note: potentially overwrites warmboot firmware. */
.temp (NOLOAD) :
{
. = ALIGN(0x1000);
__stacks_top__ = ABSOLUTE(. + 0x2000);
__crash_stacks_top__ = ABSOLUTE(. + 0x3000);
. += 0x3000;
*(.temp.*)
. = ALIGN(0x1000);
} >temp :NONE
. = ALIGN(8);