2020-09-17 00:44:31 +01:00
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/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <mesosphere/kern_build_config.hpp>
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2021-04-15 02:01:08 +01:00
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#include <mesosphere/kern_select_assembly_offsets.h>
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2020-09-17 00:44:31 +01:00
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#if defined(MESOSPHERE_ENABLE_PANIC_REGISTER_DUMP)
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#define MESOSPHERE_GENERATE_PANIC_EXCEPTION_CONTEXT \
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/* Save x0/x1 to stack. */ \
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stp x0, x1, [sp, #-16]!; \
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\
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/* Get the exception context for the core. */ \
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adr x0, _ZN3ams4kern26g_panic_exception_contextsE; \
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mrs x1, mpidr_el1; \
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and x1, x1, #0xFF; \
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lsl x1, x1, #0x8; \
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add x0, x0, x1; \
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lsr x1, x1, #0x3; \
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add x0, x0, x1; \
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\
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/* Save x0/x1/sp to the context. */ \
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ldr x1, [sp, #(8 * 0)]; \
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str x1, [x0, #(EXCEPTION_CONTEXT_X0)]; \
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ldr x1, [sp, #(8 * 1)]; \
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str x1, [x0, #(EXCEPTION_CONTEXT_X1)]; \
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\
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/* Save all other registers to the context. */ \
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stp x2, x3, [x0, #(EXCEPTION_CONTEXT_X2_X3)]; \
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stp x4, x5, [x0, #(EXCEPTION_CONTEXT_X4_X5)]; \
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stp x6, x7, [x0, #(EXCEPTION_CONTEXT_X6_X7)]; \
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stp x8, x9, [x0, #(EXCEPTION_CONTEXT_X8_X9)]; \
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stp x10, x11, [x0, #(EXCEPTION_CONTEXT_X10_X11)]; \
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stp x12, x13, [x0, #(EXCEPTION_CONTEXT_X12_X13)]; \
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stp x14, x15, [x0, #(EXCEPTION_CONTEXT_X14_X15)]; \
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stp x16, x17, [x0, #(EXCEPTION_CONTEXT_X16_X17)]; \
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stp x18, x19, [x0, #(EXCEPTION_CONTEXT_X18_X19)]; \
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stp x20, x21, [x0, #(EXCEPTION_CONTEXT_X20_X21)]; \
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stp x22, x23, [x0, #(EXCEPTION_CONTEXT_X22_X23)]; \
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stp x24, x25, [x0, #(EXCEPTION_CONTEXT_X24_X25)]; \
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stp x26, x27, [x0, #(EXCEPTION_CONTEXT_X26_X27)]; \
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stp x28, x29, [x0, #(EXCEPTION_CONTEXT_X28_X29)]; \
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\
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add x1, sp, #16; \
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stp x30, x1, [x0, #(EXCEPTION_CONTEXT_X30_SP)]; \
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\
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/* Restore x0/x1. */ \
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ldp x0, x1, [sp], #16;
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#else
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#define MESOSPHERE_GENERATE_PANIC_EXCEPTION_CONTEXT
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#endif
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/* ams::kern::Panic(const char *file, int line, const char *format, ...) */
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.section .text._ZN3ams4kern5PanicEPKciS2_z, "ax", %progbits
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.global _ZN3ams4kern5PanicEPKciS2_z
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.type _ZN3ams4kern5PanicEPKciS2_z, %function
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_ZN3ams4kern5PanicEPKciS2_z:
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/* Generate the exception context. */
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MESOSPHERE_GENERATE_PANIC_EXCEPTION_CONTEXT
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/* Jump to the architecturally-common implementation function. */
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b _ZN3ams4kern9PanicImplEPKciS2_z
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/* ams::kern::Panic() */
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.section .text._ZN3ams4kern5PanicEv, "ax", %progbits
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.global _ZN3ams4kern5PanicEv
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.type _ZN3ams4kern5PanicEv, %function
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_ZN3ams4kern5PanicEv:
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/* Generate the exception context. */
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MESOSPHERE_GENERATE_PANIC_EXCEPTION_CONTEXT
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/* Jump to the architecturally-common implementation function. */
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b _ZN3ams4kern9PanicImplEv
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