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efi_loader: new functions to print loaded image information

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Introduce functions to print information about loaded images.

If we want to analyze an exception in an EFI image we need the offset
between the PC and the start of the loaded image.

With efi_print_image_info() we can print the necessary information for a
single image, e.g.

UEFI image [0xbffe6000:0xbffe631f] pc=0x138 '/\snp.efi'

efi_print_image_infos() provides output for all loaded images.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt 2018-04-05 11:56:21 +02:00 • committed by Alexander Graf
parent 1348c17ab2
commit c9a63f44b5
2 changed files with 51 additions and 0 deletions
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5
include/efi_loader.h
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@ -308,6 +308,10 @@ efi_status_t efi_setup_loaded_image(
struct efi_device_path *file_path);
efi_status_t efi_load_image_from_path(struct efi_device_path *file_path,
void **buffer);
/* Print information about a loaded image */
efi_status_t efi_print_image_info(struct efi_loaded_image *image, void *pc);
/* Print information about all loaded images */
void efi_print_image_infos(void *pc);
#ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER
extern void *efi_bounce_buffer;
@ -425,6 +429,7 @@ static inline void efi_restore_gd(void) { }
static inline void efi_set_bootdev(const char *dev, const char *devnr,
const char *path) { }
static inline void efi_net_set_dhcp_ack(void *pkt, int len) { }
static inline void efi_print_image_infos(void *pc) { }
#endif /* CONFIG_EFI_LOADER && !CONFIG_SPL_BUILD */