For debugging efi_loader we need the capability to print EFI
device paths. With this patch we can write:
debug("device path: %pD", dp);
A possible output would be
device path: /MemoryMapped(0x0,0x3ff93a82,0x3ff93a82)
Cc: Wolfgang Denk <w...@denx.de>
Suggested-by: Rob Clark <robdcl...@gmail.com>
Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
---
I propose Alex picks up this patch for the EFI tree.
v2
Panic if out of memory.
Wolfgang suggested not to silently ignore an out of memory
situation.
---
lib/vsprintf.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+), 0 deletion(-)
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index dd572d2868..1135817fd8 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -18,6 +18,7 @@
#include <common.h>
#include <charset.h>
+#include <efi_loader.h>
#include <uuid.h>
#include <div64.h>
@@ -292,6 +293,22 @@ static char *string16(char *buf, char *end, u16 *s, int
field_width,
return buf;
}
+#ifdef CONFIG_EFI_LOADER
+static char *device_path_string(char *buf, char *end, void *dp, int
field_width,
+ int precision, int flags)
+{
+ u16 *str = efi_dp_str((struct efi_device_path *)dp);
+
+ /* Do not silently ignore out of memory situation */
+ if (!str && dp)
+ panic("efi_dp_str: out of memory");
+
+ buf = string16(buf, end, str, field_width, precision, flags);
+ efi_free_pool(str);
+ return buf;
+}
+#endif
+
#ifdef CONFIG_CMD_NET
static const char hex_asc[] = "0123456789abcdef";
#define hex_asc_lo(x) hex_asc[((x) & 0x0f)]
@@ -435,6 +452,11 @@ static char *pointer(const char *fmt, char *buf, char
*end, void *ptr,
#endif
switch (*fmt) {
+#ifdef CONFIG_EFI_LOADER
+ case 'D':
+ return device_path_string(buf, end, ptr, field_width,
+ precision, flags);
+#endif
#ifdef CONFIG_CMD_NET
case 'a':
flags |= SPECIAL | ZEROPAD;
--
2.14.2
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