mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
bba8165690
If an exception occurs in a UEFI loaded image we need the start address of the image to determine the relocation offset. This patch adds the necessary lines after the registers in the crash dump for armv8. A possible output would be: UEFI image [0x00000000bffe6000:0x00000000bffe631f] pc=0x138 '/\snp.efi' With the offset 0x138 we can now find the relevant instruction in the disassembled 'snp.efi' binary. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
147 lines
3.2 KiB
C
147 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2013
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* David Feng <fenghua@phytium.com.cn>
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*/
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#include <common.h>
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#include <linux/compiler.h>
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#include <efi_loader.h>
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DECLARE_GLOBAL_DATA_PTR;
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int interrupt_init(void)
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{
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return 0;
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}
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void enable_interrupts(void)
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{
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return;
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}
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int disable_interrupts(void)
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{
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return 0;
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}
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static void show_efi_loaded_images(struct pt_regs *regs)
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{
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efi_print_image_infos((void *)regs->elr);
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}
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void show_regs(struct pt_regs *regs)
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{
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int i;
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if (gd->flags & GD_FLG_RELOC)
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printf("elr: %016lx lr : %016lx (reloc)\n",
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regs->elr - gd->reloc_off,
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regs->regs[30] - gd->reloc_off);
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printf("elr: %016lx lr : %016lx\n", regs->elr, regs->regs[30]);
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for (i = 0; i < 29; i += 2)
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printf("x%-2d: %016lx x%-2d: %016lx\n",
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i, regs->regs[i], i+1, regs->regs[i+1]);
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printf("\n");
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}
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/*
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* do_bad_sync handles the impossible case in the Synchronous Abort vector.
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*/
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void do_bad_sync(struct pt_regs *pt_regs, unsigned int esr)
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{
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efi_restore_gd();
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printf("Bad mode in \"Synchronous Abort\" handler, esr 0x%08x\n", esr);
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show_regs(pt_regs);
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show_efi_loaded_images(pt_regs);
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panic("Resetting CPU ...\n");
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}
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/*
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* do_bad_irq handles the impossible case in the Irq vector.
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*/
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void do_bad_irq(struct pt_regs *pt_regs, unsigned int esr)
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{
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efi_restore_gd();
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printf("Bad mode in \"Irq\" handler, esr 0x%08x\n", esr);
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show_regs(pt_regs);
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show_efi_loaded_images(pt_regs);
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panic("Resetting CPU ...\n");
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}
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/*
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* do_bad_fiq handles the impossible case in the Fiq vector.
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*/
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void do_bad_fiq(struct pt_regs *pt_regs, unsigned int esr)
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{
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efi_restore_gd();
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printf("Bad mode in \"Fiq\" handler, esr 0x%08x\n", esr);
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show_regs(pt_regs);
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show_efi_loaded_images(pt_regs);
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panic("Resetting CPU ...\n");
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}
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/*
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* do_bad_error handles the impossible case in the Error vector.
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*/
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void do_bad_error(struct pt_regs *pt_regs, unsigned int esr)
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{
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efi_restore_gd();
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printf("Bad mode in \"Error\" handler, esr 0x%08x\n", esr);
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show_regs(pt_regs);
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show_efi_loaded_images(pt_regs);
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panic("Resetting CPU ...\n");
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}
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/*
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* do_sync handles the Synchronous Abort exception.
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*/
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void do_sync(struct pt_regs *pt_regs, unsigned int esr)
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{
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efi_restore_gd();
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printf("\"Synchronous Abort\" handler, esr 0x%08x\n", esr);
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show_regs(pt_regs);
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show_efi_loaded_images(pt_regs);
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panic("Resetting CPU ...\n");
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}
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/*
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* do_irq handles the Irq exception.
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*/
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void do_irq(struct pt_regs *pt_regs, unsigned int esr)
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{
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efi_restore_gd();
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printf("\"Irq\" handler, esr 0x%08x\n", esr);
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show_regs(pt_regs);
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show_efi_loaded_images(pt_regs);
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panic("Resetting CPU ...\n");
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}
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/*
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* do_fiq handles the Fiq exception.
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*/
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void do_fiq(struct pt_regs *pt_regs, unsigned int esr)
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{
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efi_restore_gd();
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printf("\"Fiq\" handler, esr 0x%08x\n", esr);
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show_regs(pt_regs);
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show_efi_loaded_images(pt_regs);
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panic("Resetting CPU ...\n");
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}
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/*
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* do_error handles the Error exception.
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* Errors are more likely to be processor specific,
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* it is defined with weak attribute and can be redefined
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* in processor specific code.
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*/
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void __weak do_error(struct pt_regs *pt_regs, unsigned int esr)
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{
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efi_restore_gd();
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printf("\"Error\" handler, esr 0x%08x\n", esr);
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show_regs(pt_regs);
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show_efi_loaded_images(pt_regs);
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panic("Resetting CPU ...\n");
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}
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