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Reach over and pull in devpath.c from libefi

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This allows us to remove three nearly identical functions because the
differences don't matter, and the size difference is trivial.
This commit is contained in:
Warner Losh 2019-05-06 18:38:46 +00:00
parent 6b6e2954dd
commit 4cf36aa101
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=347193
2 changed files with 4 additions and 63 deletions
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3
stand/efi/boot1/Makefile
View File

@ -25,7 +25,7 @@ CWARNFLAGS.zfs_module.c += -Wno-unused-parameter
CWARNFLAGS.zfs_module.c += -Wno-unused-function
# architecture-specific loader code
SRCS+= boot1.c self_reloc.c start.S ufs_module.c
SRCS+= boot1.c self_reloc.c start.S ufs_module.c devpath.c
.if ${MK_LOADER_ZFS} != "no"
SRCS+= zfs_module.c
CFLAGS.zfs_module.c+= -I${ZFSSRC}
@ -50,6 +50,7 @@ CFLAGS+= -DEFI_DEBUG
.PATH: ${EFISRC}/loader/arch/${MACHINE}
.PATH: ${EFISRC}/loader
.PATH: ${LDRSRC}
.PATH: ${EFISRC}/libefi
CFLAGS+= -I${LDRSRC}
FILES= ${BOOT1}.efi ${BOOT1}.efifat

64
stand/efi/boot1/boot1.c
View File

@ -78,66 +78,6 @@ Free(void *buf, const char *file __unused, int line __unused)
(void)BS->FreePool(buf);
}
/*
* nodes_match returns TRUE if the imgpath isn't NULL and the nodes match,
* FALSE otherwise.
*/
static BOOLEAN
nodes_match(EFI_DEVICE_PATH *imgpath, EFI_DEVICE_PATH *devpath)
{
size_t len;
if (imgpath == NULL || imgpath->Type != devpath->Type ||
imgpath->SubType != devpath->SubType)
return (FALSE);
len = DevicePathNodeLength(imgpath);
if (len != DevicePathNodeLength(devpath))
return (FALSE);
return (memcmp(imgpath, devpath, (size_t)len) == 0);
}
/*
* device_paths_match returns TRUE if the imgpath isn't NULL and all nodes
* in imgpath and devpath match up to their respective occurrences of a
* media node, FALSE otherwise.
*/
static BOOLEAN
device_paths_match(EFI_DEVICE_PATH *imgpath, EFI_DEVICE_PATH *devpath)
{
if (imgpath == NULL)
return (FALSE);
while (!IsDevicePathEnd(imgpath) && !IsDevicePathEnd(devpath)) {
if (IsDevicePathType(imgpath, MEDIA_DEVICE_PATH) &&
IsDevicePathType(devpath, MEDIA_DEVICE_PATH))
return (TRUE);
if (!nodes_match(imgpath, devpath))
return (FALSE);
imgpath = NextDevicePathNode(imgpath);
devpath = NextDevicePathNode(devpath);
}
return (FALSE);
}
/*
* devpath_last returns the last non-path end node in devpath.
*/
static EFI_DEVICE_PATH *
devpath_last(EFI_DEVICE_PATH *devpath)
{
while (!IsDevicePathEnd(NextDevicePathNode(devpath)))
devpath = NextDevicePathNode(devpath);
return (devpath);
}
/*
* load_loader attempts to load the loader image data.
*
@ -225,7 +165,7 @@ try_boot(void)
buf = NULL;
}
if ((status = BS->LoadImage(TRUE, IH, devpath_last(dev->devpath),
if ((status = BS->LoadImage(TRUE, IH, efi_devpath_last_node(dev->devpath),
loaderbuf, loadersize, &loaderhandle)) != EFI_SUCCESS) {
printf("Failed to load image provided by %s, size: %zu, (%lu)\n",
mod->name, loadersize, EFI_ERROR_CODE(status));
@ -321,7 +261,7 @@ probe_handle(EFI_HANDLE h, EFI_DEVICE_PATH *imgpath, BOOLEAN *preferred)
if (!blkio->Media->LogicalPartition)
return (EFI_UNSUPPORTED);
*preferred = device_paths_match(imgpath, devpath);
*preferred = efi_devpath_match(imgpath, devpath);
/* Run through each module, see if it can load this partition */
for (i = 0; i < NUM_BOOT_MODULES; i++) {