Split libvboot_host.a into external and local libraries.

We've been creating and linking against a library called "libvboot_host.a"
for two different reasons. The main purpose is to build the vboot_reference
tools found in the utility/ directory. But there are some external userspace
programs that would also like to use some functions in this library.

This change establishes libvboot_host.a as the library for use by external
userspace programs only, and creates a new libvboot_util.a library that's
only used inside this source tree to build the vboot utilities.

BUG=chromium:231567
BRANCH=ToT
TEST=manual

Build and run the local tests:

  make runalltests
  make clean

Build Link firmware and all the utilities:

  emerge-link chromeos-base/vboot_reference \
              sys-boot/depthcharge \
              sys-boot/coreboot \
              chromeos-base/chromeos-ec \
              chromeos-base/chromeos-firmware-link \
              chromeos-base/chromeos-cryptohome \
              chromeos-base/update_engine \
              chromeos-base/chromeos-installer \
              chromeos-base/chromeos-login \
              chromeos-base/verity

Build Lumpy utilities, which include the 32-bit cros_installer:

  emerge-lumpy chromeos-base/vboot_reference \
               chromeos-base/chromeos-login \
               chromeos-base/verity \
               chromeos-base/update_engine \
               chromeos-base/chromeos-installer \
               chromeos-base/chromeos-cryptohome

Change-Id: Ie81ff1f74a6356cb8fab7d98471139d7758c4f19
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/207016
Reviewed-by: Randall Spangler <rspangler@chromium.org>

1 files changed, 36 insertions, 0 deletions

diff --git a/cgpt/cgpt_common.c b/cgpt/cgpt_common.c
index c8a069a4..ff3ae696 100644
--- a/cgpt/cgpt_common.c
+++ b/cgpt/cgpt_common.c
@@ -1162,6 +1162,42 @@ uint8_t RepairHeader(GptData *gpt, const uint32_t valid_headers) {
   return 0;
 }
 
+int CgptGetNumNonEmptyPartitions(CgptShowParams *params) {
+  struct drive drive;
+  int gpt_retval;
+  int retval;
+
+  if (params == NULL)
+    return CGPT_FAILED;
+
+  if (CGPT_OK != DriveOpen(params->drive_name, &drive, O_RDONLY))
+    return CGPT_FAILED;
+
+  if (GPT_SUCCESS != (gpt_retval = GptSanityCheck(&drive.gpt))) {
+    Error("GptSanityCheck() returned %d: %s\n",
+          gpt_retval, GptError(gpt_retval));
+    retval = CGPT_FAILED;
+    goto done;
+  }
+
+  params->num_partitions = 0;
+  int numEntries = GetNumberOfEntries(&drive);
+  int i;
+  for(i = 0; i < numEntries; i++) {
+      GptEntry *entry = GetEntry(&drive.gpt, ANY_VALID, i);
+      if (GuidIsZero(&entry->type))
+        continue;
+
+      params->num_partitions++;
+  }
+
+  retval = CGPT_OK;
+
+done:
+  DriveClose(&drive, 0);
+  return retval;
+}
+
 int GuidEqual(const Guid *guid1, const Guid *guid2) {
   return (0 == memcmp(guid1, guid2, sizeof(Guid)));
 }