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arm: print information about loaded UEFI images
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. A possible output would be: UEFI image [0xbffe6000:0xbffe631f] 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> Signed-off-by: Alexander Graf <agraf@suse.de>
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1 changed files with 13 additions and 0 deletions
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@ -20,6 +20,7 @@
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*/
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#include <common.h>
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#include <efi_loader.h>
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#include <asm/proc-armv/ptrace.h>
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#include <asm/u-boot-arm.h>
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#include <efi_loader.h>
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@ -51,6 +52,11 @@ void bad_mode (void)
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reset_cpu (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 *)instruction_pointer(regs));
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}
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void show_regs (struct pt_regs *regs)
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{
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unsigned long __maybe_unused flags;
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@ -106,6 +112,7 @@ void do_undefined_instruction (struct pt_regs *pt_regs)
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printf ("undefined instruction\n");
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fixup_pc(pt_regs, -4);
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show_regs (pt_regs);
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show_efi_loaded_images(pt_regs);
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bad_mode ();
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}
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@ -115,6 +122,7 @@ void do_software_interrupt (struct pt_regs *pt_regs)
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printf ("software interrupt\n");
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fixup_pc(pt_regs, -4);
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show_regs (pt_regs);
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show_efi_loaded_images(pt_regs);
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bad_mode ();
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}
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@ -124,6 +132,7 @@ void do_prefetch_abort (struct pt_regs *pt_regs)
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printf ("prefetch abort\n");
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fixup_pc(pt_regs, -8);
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show_regs (pt_regs);
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show_efi_loaded_images(pt_regs);
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bad_mode ();
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}
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@ -133,6 +142,7 @@ void do_data_abort (struct pt_regs *pt_regs)
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printf ("data abort\n");
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fixup_pc(pt_regs, -8);
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show_regs (pt_regs);
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show_efi_loaded_images(pt_regs);
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bad_mode ();
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}
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@ -142,6 +152,7 @@ void do_not_used (struct pt_regs *pt_regs)
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printf ("not used\n");
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fixup_pc(pt_regs, -8);
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show_regs (pt_regs);
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show_efi_loaded_images(pt_regs);
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bad_mode ();
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}
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@ -151,6 +162,7 @@ void do_fiq (struct pt_regs *pt_regs)
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printf ("fast interrupt request\n");
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fixup_pc(pt_regs, -8);
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show_regs (pt_regs);
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show_efi_loaded_images(pt_regs);
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bad_mode ();
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}
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@ -160,5 +172,6 @@ void do_irq (struct pt_regs *pt_regs)
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printf ("interrupt request\n");
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fixup_pc(pt_regs, -8);
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show_regs (pt_regs);
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show_efi_loaded_images(pt_regs);
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bad_mode ();
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}
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