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authorHeinrich Schuchardt <xypron.glpk@gmx.de>2018-04-05 11:56:22 +0200
committerAlexander Graf <agraf@suse.de>2018-04-05 15:24:01 +0200
commit99b8db7291ce58c83a4d3ad748c4a59ec7063d65 (patch)
tree03c5b9268b675ead811985030c6ba4f9029993d5
parentc9a63f44b526696a60e275087d79fe709f65f48b (diff)
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>
-rw-r--r--arch/arm/lib/interrupts.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/lib/interrupts.c b/arch/arm/lib/interrupts.c
index 80869adb61..cda4d48460 100644
--- a/arch/arm/lib/interrupts.c
+++ b/arch/arm/lib/interrupts.c
@@ -20,6 +20,7 @@
*/
#include <common.h>
+#include <efi_loader.h>
#include <asm/proc-armv/ptrace.h>
#include <asm/u-boot-arm.h>
#include <efi_loader.h>
@@ -51,6 +52,11 @@ void bad_mode (void)
reset_cpu (0);
}
+static void show_efi_loaded_images(struct pt_regs *regs)
+{
+ efi_print_image_infos((void *)instruction_pointer(regs));
+}
+
void show_regs (struct pt_regs *regs)
{
unsigned long __maybe_unused flags;
@@ -106,6 +112,7 @@ void do_undefined_instruction (struct pt_regs *pt_regs)
printf ("undefined instruction\n");
fixup_pc(pt_regs, -4);
show_regs (pt_regs);
+ show_efi_loaded_images(pt_regs);
bad_mode ();
}
@@ -115,6 +122,7 @@ void do_software_interrupt (struct pt_regs *pt_regs)
printf ("software interrupt\n");
fixup_pc(pt_regs, -4);
show_regs (pt_regs);
+ show_efi_loaded_images(pt_regs);
bad_mode ();
}
@@ -124,6 +132,7 @@ void do_prefetch_abort (struct pt_regs *pt_regs)
printf ("prefetch abort\n");
fixup_pc(pt_regs, -8);
show_regs (pt_regs);
+ show_efi_loaded_images(pt_regs);
bad_mode ();
}
@@ -133,6 +142,7 @@ void do_data_abort (struct pt_regs *pt_regs)
printf ("data abort\n");
fixup_pc(pt_regs, -8);
show_regs (pt_regs);
+ show_efi_loaded_images(pt_regs);
bad_mode ();
}
@@ -142,6 +152,7 @@ void do_not_used (struct pt_regs *pt_regs)
printf ("not used\n");
fixup_pc(pt_regs, -8);
show_regs (pt_regs);
+ show_efi_loaded_images(pt_regs);
bad_mode ();
}
@@ -151,6 +162,7 @@ void do_fiq (struct pt_regs *pt_regs)
printf ("fast interrupt request\n");
fixup_pc(pt_regs, -8);
show_regs (pt_regs);
+ show_efi_loaded_images(pt_regs);
bad_mode ();
}
@@ -160,5 +172,6 @@ void do_irq (struct pt_regs *pt_regs)
printf ("interrupt request\n");
fixup_pc(pt_regs, -8);
show_regs (pt_regs);
+ show_efi_loaded_images(pt_regs);
bad_mode ();
}