Fix build backwards-incompatibilities with LIB_XXX defines, and add fix pico_time in host mode (#1232)

* restore original setters of LIB_PICO_ as some external code depends on it

* add __get_current_exception to host

src/common/pico_base/CMakeLists.txt

@@ -11,4 +11,3 @@ if (NOT TARGET pico_base_headers)
     list(APPEND PICO_SDK_POST_LIST_FILES ${CMAKE_CURRENT_LIST_DIR}/generate_config_header.cmake)
     pico_promote_common_scope_vars()
 endif()
-

src/host/pico_platform/include/pico/platform.h

@@ -143,6 +143,9 @@ static inline void __compiler_memory_barrier(void) {
 
 uint get_core_num();
 
+static inline uint __get_current_exception(void) {
+    return 0;
+}
 #ifdef __cplusplus
 }
 #endif

src/host/pico_stdio/CMakeLists.txt

@@ -1,5 +1,5 @@
 if (NOT TARGET pico_stdio)
-    pico_add_library(pico_stdio NOFLAG)
+    pico_add_library(pico_stdio)
 
     target_include_directories(pico_stdio_headers INTERFACE ${CMAKE_CURRENT_LIST_DIR}/include)
 

src/rp2_common/pico_cyw43_arch/CMakeLists.txt

@@ -1,6 +1,6 @@
 if (PICO_CYW43_SUPPORTED) # set by BOARD=pico-w
     if (TARGET cyw43_driver_picow)
-        pico_add_library(pico_cyw43_arch NOFLAG)
+        pico_add_library(pico_cyw43_arch)
         target_sources(pico_cyw43_arch INTERFACE
                 ${CMAKE_CURRENT_LIST_DIR}/cyw43_arch.c
                 ${CMAKE_CURRENT_LIST_DIR}/cyw43_arch_poll.c

src/rp2_common/pico_divider/CMakeLists.txt

@@ -3,7 +3,7 @@ if (NOT TARGET pico_divider)
     pico_add_impl_library(pico_divider)
 
     # no custom implementation; falls thru to compiler
-    add_library(pico_divider_compiler INTERFACE)
+    pico_add_library(pico_divider_compiler)
 
     # add alias "default" which is just hardware.
     add_library(pico_divider_default INTERFACE)
@@ -25,7 +25,7 @@ if (NOT TARGET pico_divider)
             hardware_regs
             )
 
-    add_library(pico_divider_hardware INTERFACE)
+    pico_add_library(pico_divider_hardware)
 
     target_link_libraries(pico_divider_hardware INTERFACE pico_divider_hardware_explicit)
 

src/rp2_common/pico_fix/rp2040_usb_device_enumeration/CMakeLists.txt

@@ -1,4 +1,4 @@
-pico_add_library(pico_fix_rp2040_usb_device_enumeration NOFLAG)
+pico_add_library(pico_fix_rp2040_usb_device_enumeration)
 
 target_sources(pico_fix_rp2040_usb_device_enumeration INTERFACE
         ${CMAKE_CURRENT_LIST_DIR}/rp2040_usb_device_enumeration.c

src/rp2_common/pico_float/CMakeLists.txt

@@ -1,6 +1,6 @@
 if (NOT TARGET pico_float)
     # library to be depended on - we make this depend on particular implementations using per target generator expressions
-    pico_add_library(pico_float NOFLAG)
+    pico_add_library(pico_float)
 
     # no custom implementation; falls thru to compiler
     pico_add_library(pico_float_compiler)

src/rp2_common/pico_int64_ops/CMakeLists.txt

@@ -1,7 +1,7 @@
 if (NOT TARGET pico_int64_ops)
 
     #shims for ROM functions for -lgcc functions  (listed below)
-    pico_add_library(pico_int64_ops NOFLAG)
+    pico_add_library(pico_int64_ops)
 
     # no custom implementation; falls thru to compiler
     pico_add_library(pico_int64_ops_compiler)

src/rp2_common/pico_malloc/CMakeLists.txt

@@ -1,6 +1,6 @@
 if (NOT TARGET pico_malloc)
     #shims for ROM functions for -lgcc functions  (listed below)
-    pico_add_library(pico_malloc NOFLAG)
+    pico_add_library(pico_malloc)
 
     target_sources(pico_malloc INTERFACE
             ${CMAKE_CURRENT_LIST_DIR}/pico_malloc.c

src/rp2_common/pico_mem_ops/CMakeLists.txt

@@ -3,7 +3,7 @@ if (NOT TARGET pico_mem_ops)
     pico_add_library(pico_mem_ops)
 
     # no custom implementation; falls thru to compiler
-    add_library(pico_mem_ops_compiler INTERFACE)
+    pico_add_library(pico_mem_ops_compiler)
 
     # add alias "default" which is just pico.
     add_library(pico_mem_ops_default INTERFACE)

src/rp2_common/pico_printf/CMakeLists.txt

@@ -1,6 +1,6 @@
 if (NOT TARGET pico_printf)
     # library to be depended on - we make this depend on particular implementations using per target generator expressions
-    pico_add_library(pico_printf NOFLAG)
+    pico_add_library(pico_printf)
 
     # no custom implementation; falls thru to compiler
     pico_add_library(pico_printf_compiler)

src/rp2_common/pico_runtime/CMakeLists.txt

@@ -1,4 +1,4 @@
-pico_add_library(pico_runtime NOFLAG)
+pico_add_library(pico_runtime)
 
 target_sources(pico_runtime INTERFACE
         ${CMAKE_CURRENT_LIST_DIR}/runtime.c

src/rp2_common/pico_standard_link/CMakeLists.txt

@@ -1,5 +1,5 @@
 if (NOT TARGET pico_standard_link)
-    pico_add_library(pico_standard_link NOFLAG)
+    pico_add_library(pico_standard_link)
 
     target_sources(pico_standard_link INTERFACE
         ${CMAKE_CURRENT_LIST_DIR}/crt0.S

src/rp2_common/pico_stdio/CMakeLists.txt

@@ -1,5 +1,5 @@
 if (NOT TARGET pico_stdio)
-    pico_add_library(pico_stdio NOFLAG)
+    pico_add_library(pico_stdio)
 
     target_include_directories(pico_stdio_headers INTERFACE ${CMAKE_CURRENT_LIST_DIR}/include)
 

src/rp2_common/pico_stdlib/CMakeLists.txt

@@ -6,7 +6,7 @@ option(PICO_STDIO_USB "Globablly enable stdio USB" 0)
 option(PICO_STDIO_SEMIHOSTING "Globablly enable stdio semihosting" 0)
 
 if (NOT TARGET pico_stdlib)
-    pico_add_impl_library(pico_stdlib NOFLAG)
+    pico_add_impl_library(pico_stdlib)
     target_sources(pico_stdlib INTERFACE
             ${CMAKE_CURRENT_LIST_DIR}/stdlib.c
     )

src/rp2_common/pico_unique_id/CMakeLists.txt

@@ -1,4 +1,4 @@
-pico_add_library(pico_unique_id NOFLAG)
+pico_add_library(pico_unique_id)
 
 target_sources(pico_unique_id INTERFACE
         ${CMAKE_CURRENT_LIST_DIR}/unique_id.c