build: always prefix section names with `.`

Some of our specialized sections are not prefixed with the conventional
period. The compiler uses input section names to derive certain other
section names (e.g. `.rela.text`, `.relacpu_ops`), and these can be
difficult to select in linker scripts when there is a lack of a
delimiter.

This change introduces the period prefix to all specialized section
names.

BREAKING-CHANGE: All input and output linker section names have been
 prefixed with the period character, e.g. `cpu_ops` -> `.cpu_ops`.

Change-Id: I51c13c5266d5975fbd944ef4961328e72f82fc1c
Signed-off-by: Chris Kay <chris.kay@arm.com>
diff --git a/lib/pmf/pmf_main.c b/lib/pmf/pmf_main.c
index 131a055..ce2f0d9 100644
--- a/lib/pmf/pmf_main.c
+++ b/lib/pmf/pmf_main.c
@@ -17,7 +17,7 @@
 
 /*******************************************************************************
  * The 'pmf_svc_descs' array holds the PMF service descriptors exported by
- * services by placing them in the 'pmf_svc_descs' linker section.
+ * services by placing them in the '.pmf_svc_descs' linker section.
  * The 'pmf_svc_descs_indices' array holds the index of a descriptor in the
  * 'pmf_svc_descs' array. The TIF[15:10] bits in the time-stamp id are used
  * to get an index into the 'pmf_svc_descs_indices' array. This gives the
diff --git a/lib/psci/psci_common.c b/lib/psci/psci_common.c
index 8d736cc..f233be1 100644
--- a/lib/psci/psci_common.c
+++ b/lib/psci/psci_common.c
@@ -55,7 +55,7 @@
  ******************************************************************************/
 non_cpu_pd_node_t psci_non_cpu_pd_nodes[PSCI_NUM_NON_CPU_PWR_DOMAINS]
 #if USE_COHERENT_MEM
-__section("tzfw_coherent_mem")
+__section(".tzfw_coherent_mem")
 #endif
 ;
 
diff --git a/lib/xlat_tables/aarch32/nonlpae_tables.c b/lib/xlat_tables/aarch32/nonlpae_tables.c
index 7cd509d..1e207a4 100644
--- a/lib/xlat_tables/aarch32/nonlpae_tables.c
+++ b/lib/xlat_tables/aarch32/nonlpae_tables.c
@@ -138,10 +138,10 @@
 static uintptr_t xlat_max_va;
 
 static uint32_t mmu_l1_base[NUM_1MB_IN_4GB]
-	__aligned(MMU32B_L1_TABLE_ALIGN) __attribute__((section("xlat_table")));
+	__aligned(MMU32B_L1_TABLE_ALIGN) __attribute__((section(".xlat_table")));
 
 static uint32_t mmu_l2_base[MAX_XLAT_TABLES][NUM_4K_IN_1MB]
-	__aligned(MMU32B_L2_TABLE_ALIGN) __attribute__((section("xlat_table")));
+	__aligned(MMU32B_L2_TABLE_ALIGN) __attribute__((section(".xlat_table")));
 
 /*
  * Array of all memory regions stored in order of ascending base address.
diff --git a/lib/xlat_tables/xlat_tables_common.c b/lib/xlat_tables/xlat_tables_common.c
index 23fe3f0..71273cb 100644
--- a/lib/xlat_tables/xlat_tables_common.c
+++ b/lib/xlat_tables/xlat_tables_common.c
@@ -39,7 +39,7 @@
 #define MT_UNKNOWN	~0U
 
 static uint64_t xlat_tables[MAX_XLAT_TABLES][XLAT_TABLE_ENTRIES]
-			__aligned(XLAT_TABLE_SIZE) __section("xlat_table");
+			__aligned(XLAT_TABLE_SIZE) __section(".xlat_table");
 
 static unsigned int next_xlat;
 static unsigned long long xlat_max_pa;