mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-22 20:31:14 +00:00
thermosphere: rework linkscrips, use discardable sections, better sp pivot on crash
This commit is contained in:
parent
0b1ab362c6
commit
c33d2ee369
9 changed files with 92 additions and 56 deletions
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@ -24,12 +24,19 @@ export PLATFORM := qemu
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PLATFORM_SOURCES := src/platform/qemu
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PLATFORM_SOURCES := src/platform/qemu
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PLATFORM_DEFINES := -DPLATFORM_QEMU
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PLATFORM_DEFINES := -DPLATFORM_QEMU
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else ifeq ($(PLATFORM), tegra-t210-arm-tf)
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export PLATFORM := tegra-t210-arm-tf
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PLATFORM_SOURCES := src/platform/tegra
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PLATFORM_DEFINES := -DPLATFORM_TEGRA -DPLATFORM_TEGRA_T210_ARM_TF
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else
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else
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export PLATFORM := tegra
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export PLATFORM := tegra
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PLATFORM_SOURCES := src/platform/tegra
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PLATFORM_SOURCES := src/platform/tegra
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PLATFORM_DEFINES := -DPLATFORM_TEGRA
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PLATFORM_DEFINES := -DPLATFORM_TEGRA -D DPLATFORM_TEGRA_T210_NINTENDO
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endif
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endif
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@ -1,6 +1,11 @@
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OUTPUT_ARCH(aarch64)
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OUTPUT_ARCH(aarch64)
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ENTRY(_start)
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ENTRY(_start)
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PHDRS
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{
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main PT_LOAD;
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}
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SECTIONS
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SECTIONS
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{
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{
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PROVIDE(__start__ = ORIGIN(main));
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PROVIDE(__start__ = ORIGIN(main));
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@ -19,37 +24,37 @@ SECTIONS
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__vectors_start__ = ABSOLUTE(.);
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__vectors_start__ = ABSOLUTE(.);
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KEEP(*(.vectors*));
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KEEP(*(.vectors*));
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. = ALIGN(8);
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. = ALIGN(8);
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} >main
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} >main :main
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.init :
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.init :
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{
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{
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KEEP( *(.init) )
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KEEP( *(.init) )
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. = ALIGN(8);
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. = ALIGN(8);
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} >main
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} >main :main
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.plt :
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.plt :
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{
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{
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*(.plt)
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*(.plt)
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*(.iplt)
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*(.iplt)
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. = ALIGN(8);
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. = ALIGN(8);
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} >main
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} >main :main
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.fini :
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.fini :
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{
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{
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KEEP( *(.fini) )
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KEEP( *(.fini) )
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. = ALIGN(8);
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. = ALIGN(8);
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} >main
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} >main :main
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.rodata :
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.rodata :
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{
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{
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*(.rodata .rodata.* .gnu.linkonce.r.*)
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*(.rodata .rodata.* .gnu.linkonce.r.*)
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SORT(CONSTRUCTORS)
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SORT(CONSTRUCTORS)
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. = ALIGN(8);
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. = ALIGN(8);
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} >main
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} >main :main
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.got : { __got_start__ = ABSOLUTE(.); *(.got) *(.igot) } >main
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.got : { __got_start__ = ABSOLUTE(.); *(.got) *(.igot) } >main :main
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.got.plt : { *(.got.plt) *(.igot.plt) __got_end__ = ABSOLUTE(.);} >main
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.got.plt : { *(.got.plt) *(.igot.plt) __got_end__ = ABSOLUTE(.);} >main :main
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.preinit_array :
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.preinit_array :
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{
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{
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@ -58,7 +63,7 @@ SECTIONS
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KEEP (*(.preinit_array))
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KEEP (*(.preinit_array))
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PROVIDE (__preinit_array_end = ABSOLUTE(.));
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PROVIDE (__preinit_array_end = ABSOLUTE(.));
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. = ALIGN(8);
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. = ALIGN(8);
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} >main
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} >main :main
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.init_array :
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.init_array :
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{
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{
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@ -66,7 +71,7 @@ SECTIONS
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array))
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KEEP (*(.init_array))
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PROVIDE (__init_array_end = ABSOLUTE(.));
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PROVIDE (__init_array_end = ABSOLUTE(.));
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} >main
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} >main :main
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.fini_array :
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.fini_array :
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{
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{
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@ -76,7 +81,7 @@ SECTIONS
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KEEP (*(SORT(.fini_array.*)))
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KEEP (*(SORT(.fini_array.*)))
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PROVIDE (__fini_array_end = ABSOLUTE(.));
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PROVIDE (__fini_array_end = ABSOLUTE(.));
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. = ALIGN(8);
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. = ALIGN(8);
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} >main
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} >main :main
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.ctors :
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.ctors :
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{
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{
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@ -86,7 +91,7 @@ SECTIONS
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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KEEP (*(.ctors))
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. = ALIGN(8);
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. = ALIGN(8);
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} >main
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} >main :main
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.dtors ALIGN(8) :
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.dtors ALIGN(8) :
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{
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{
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@ -96,35 +101,35 @@ SECTIONS
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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KEEP (*(.dtors))
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. = ALIGN(8);
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. = ALIGN(8);
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} >main
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} >main :main
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.data ALIGN(8) :
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.data ALIGN(8) :
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{
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{
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*(.data .data.* .gnu.linkonce.d.*)
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*(.data .data.* .gnu.linkonce.d.*)
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CONSTRUCTORS
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CONSTRUCTORS
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. = ALIGN(8);
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. = ALIGN(8);
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} >main
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} >main :main
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.eh_frame_hdr : { *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) } >main
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.eh_frame_hdr : { *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) } >main :main
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.eh_frame : { KEEP (*(.eh_frame)) *(.eh_frame.*) } >main
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.eh_frame : { KEEP (*(.eh_frame)) *(.eh_frame.*) } >main :main
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.gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) } >main
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.gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) } >main :main
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.gnu_extab : { *(.gnu_extab*) } >main
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.gnu_extab : { *(.gnu_extab*) } >main :main
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.exception_ranges : { *(.exception_ranges .exception_ranges*) } >main
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.exception_ranges : { *(.exception_ranges .exception_ranges*) } >main :main
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.dynamic : { *(.dynamic) } >main
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.dynamic : { *(.dynamic) } >main :main
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.interp : { *(.interp) } >main
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.interp : { *(.interp) } >main :main
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.note.gnu.build-id : { *(.note.gnu.build-id) } >main
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.note.gnu.build-id : { *(.note.gnu.build-id) } >main :main
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.hash : { *(.hash) } >main
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.hash : { *(.hash) } >main :main
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.gnu.hash : { *(.gnu.hash) } >main
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.gnu.hash : { *(.gnu.hash) } >main :main
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.gnu.version : { *(.gnu.version) } >main
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.gnu.version : { *(.gnu.version) } >main :main
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.gnu.version_d : { *(.gnu.version_d) } >main
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.gnu.version_d : { *(.gnu.version_d) } >main :main
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.gnu.version_r : { *(.gnu.version_r) } >main
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.gnu.version_r : { *(.gnu.version_r) } >main :main
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.dynsym : { *(.dynsym) } >main
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.dynsym : { *(.dynsym) } >main :main
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.dynstr : { *(.dynstr) } >main
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.dynstr : { *(.dynstr) } >main :main
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.rela.dyn : { *(.rela.*); __main_end__ = ABSOLUTE(.);} >main
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.rela.dyn : { *(.rela.*); __main_end__ = ABSOLUTE(.);} >main :main
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.bss :
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.bss (NOLOAD) :
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{
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{
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. = ALIGN(8);
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. = ALIGN(8);
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__bss_start__ = ABSOLUTE(.);
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__bss_start__ = ABSOLUTE(.);
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@ -133,13 +138,22 @@ SECTIONS
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*(COMMON)
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*(COMMON)
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. = ALIGN(8);
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. = ALIGN(8);
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__end__ = ABSOLUTE(.);
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__end__ = ABSOLUTE(.);
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} >main
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} >main :NONE
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. = ALIGN(0x1000);
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. = ALIGN(0x1000);
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__end__ = ABSOLUTE(.) ;
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__end__ = ABSOLUTE(.) ;
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__stacks_top__ = ABSOLUTE(. + 0x1000);
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.temp (NOLOAD) :
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__excep_stacks_top__ = ABSOLUTE(. + 0x2000); /* Note: potentially overwrites warmboot firmware. */
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{
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. = ALIGN(0x1000);
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__stacks_top__ = ABSOLUTE(. + 0x2000);
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__crash_stacks_top__ = ABSOLUTE(. + 0x3000);
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. += 0x3000;
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*(.temp.*)
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. = ALIGN(0x1000);
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} >temp :NONE
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. = ALIGN(8);
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. = ALIGN(8);
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@ -1,5 +1,6 @@
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MEMORY
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MEMORY
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{
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{
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NULL : ORIGIN = 0, LENGTH = 0x1000
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NULL : ORIGIN = 0, LENGTH = 0x1000
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main : ORIGIN = 0x60000000, LENGTH = 128M /* QEMU's memory map changes dynamically? */
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main : ORIGIN = 0x60000000, LENGTH = 64M /* QEMU's memory map changes dynamically? */
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}
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temp : ORIGIN = 0x64000000, LENGTH = 64M
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}
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@ -19,6 +19,8 @@
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// start.s
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// start.s
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extern uintptr_t g_initialKernelEntrypoint;
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extern uintptr_t g_initialKernelEntrypoint;
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extern u8 __stacks_top__[], __crash_stacks_top__[];
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// Prevents it from being put in BSS
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// Prevents it from being put in BSS
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CoreCtx g_coreCtxs[4] = {
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CoreCtx g_coreCtxs[4] = {
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{ .coreId = 0 },
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{ .coreId = 0 },
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@ -29,10 +31,12 @@ CoreCtx g_coreCtxs[4] = {
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void coreCtxInit(u32 coreId, bool isColdbootCore, u64 argument)
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void coreCtxInit(u32 coreId, bool isColdbootCore, u64 argument)
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{
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{
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size_t crashStackSize = (__crash_stacks_top__ - __stacks_top__) / 4;
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currentCoreCtx = &g_coreCtxs[coreId];
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currentCoreCtx = &g_coreCtxs[coreId];
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currentCoreCtx->isColdbootCore = isColdbootCore;
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currentCoreCtx->isColdbootCore = isColdbootCore;
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currentCoreCtx->kernelArgument = argument;
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currentCoreCtx->kernelArgument = argument;
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if (isColdbootCore) {
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currentCoreCtx->crashStack = __crash_stacks_top__ - crashStackSize * coreId;
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if (isColdbootCore && currentCoreCtx->kernelEntrypoint == 0) {
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currentCoreCtx->kernelEntrypoint = g_initialKernelEntrypoint;
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currentCoreCtx->kernelEntrypoint = g_initialKernelEntrypoint;
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}
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}
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}
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}
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@ -18,10 +18,12 @@
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#include "utils.h"
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#include "utils.h"
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typedef struct CoreCtx {
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typedef struct CoreCtx {
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u64 kernelArgument;
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u64 kernelArgument; // @0x00
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uintptr_t kernelEntrypoint;
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uintptr_t kernelEntrypoint; // @0x08
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u32 coreId; // @0x10
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u8 *crashStack; // @0x10
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bool isColdbootCore; // @0x14
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u64 scratch; // @0x18
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u32 coreId; // @0x20
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bool isColdbootCore; // @0x24
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} CoreCtx;
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} CoreCtx;
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extern CoreCtx g_coreCtxs[4];
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extern CoreCtx g_coreCtxs[4];
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@ -63,17 +63,14 @@
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.endm
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.endm
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.macro pivot_stack_for_crash
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.macro pivot_stack_for_crash
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// Note: reset x18 assumed uncorrupted
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// Note: x18 assumed uncorrupted
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// Note: replace sp_el0 with crashing sp
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// Note: replace sp_el0 with crashing sp
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mrs x18, esr_el2
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str x16, [x18, #0x18] // currentCoreCtx->scratch = x16
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mov x18, sp
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mov x16, sp
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msr sp_el0, x18
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msr sp_el0, x16
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bic x18, x18, #0xFF
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ldr x16, [x18, #0x10] // currentCoreCtx->crashStack
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bic x18, x18, #0x300
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mov sp, x16
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add x18, x18, #0x400
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ldr x16, [x18, #0x18]
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mov sp, x18
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ldp x18, xzr, [sp, #-0x10]
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add sp, sp, #0x1000
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.endm
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.endm
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/* Actual Vectors for Thermosphere. */
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/* Actual Vectors for Thermosphere. */
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8
thermosphere/tegra-t210-arm-tf.mem
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8
thermosphere/tegra-t210-arm-tf.mem
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@ -0,0 +1,8 @@
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MEMORY
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{
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NULL : ORIGIN = 0, LENGTH = 0x1000
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main : ORIGIN = 0x80000000, LENGTH = 0xD000
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/* This area is overwritten by the secure monitor when preparing for deep sleep. */
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temp : ORIGIN = 0xFF800000, LENGTH = 0x400000
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}
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8
thermosphere/tegra-t210-nintendo.mem
Normal file
8
thermosphere/tegra-t210-nintendo.mem
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MEMORY
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{
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NULL : ORIGIN = 0, LENGTH = 0x1000
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main : ORIGIN = 0x80000000, LENGTH = 0xD000
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/* This area is overwritten by the secure monitor when preparing for deep sleep. */
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temp : ORIGIN = 0x8000F000, LENGTH = 0x11000
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}
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MEMORY
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{
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NULL : ORIGIN = 0, LENGTH = 0x1000
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main : ORIGIN = 0x80000000, LENGTH = 0xD000 - 0x2000 /* 0x2000 for stacks. */
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}
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