diff --git a/src/rp2040/boot_stage2/CMakeLists.txt b/src/rp2040/boot_stage2/CMakeLists.txt
index 2798b3640..eebfb600b 100644
--- a/src/rp2040/boot_stage2/CMakeLists.txt
+++ b/src/rp2040/boot_stage2/CMakeLists.txt
@@ -49,7 +49,9 @@ function(pico_define_boot_stage2 NAME SOURCES)
     if (PICO_C_COMPILER_IS_CLANG)
         target_link_options(${NAME} PRIVATE "-nostdlib")
     elseif (PICO_C_COMPILER_IS_GNU)
-        target_link_options(${NAME} PRIVATE "--specs=nosys.specs")
+        if (PICO_CLIB STREQUAL "newlib")
+             target_link_options(${NAME} PRIVATE "--specs=nosys.specs")
+        endif()
         target_link_options(${NAME} PRIVATE "-nostartfiles")
     endif ()
 
diff --git a/src/rp2350/boot_stage2/CMakeLists.txt b/src/rp2350/boot_stage2/CMakeLists.txt
index fbf95b53a..446ca12aa 100644
--- a/src/rp2350/boot_stage2/CMakeLists.txt
+++ b/src/rp2350/boot_stage2/CMakeLists.txt
@@ -49,7 +49,9 @@ function(pico_define_boot_stage2 NAME SOURCES)
     if (PICO_C_COMPILER_IS_CLANG)
         target_link_options(${NAME} PRIVATE "-nostdlib")
     elseif (PICO_C_COMPILER_IS_GNU)
-        target_link_options(${NAME} PRIVATE "--specs=nosys.specs")
+        if (PICO_CLIB STREQUAL "newlib")
+             target_link_options(${NAME} PRIVATE "--specs=nosys.specs")
+        endif()
         target_link_options(${NAME} PRIVATE "-nostartfiles")
     endif ()
 
diff --git a/src/rp2_common/pico_clib_interface/picolibc_interface.c b/src/rp2_common/pico_clib_interface/picolibc_interface.c
index 63d79135e..ca74e038e 100644
--- a/src/rp2_common/pico_clib_interface/picolibc_interface.c
+++ b/src/rp2_common/pico_clib_interface/picolibc_interface.c
@@ -58,6 +58,12 @@ static FILE __stdio = FDEV_SETUP_STREAM(picolibc_putc,
                                         picolibc_flush,
                                         _FDEV_SETUP_RW);
 
+#ifdef __GNUCLIKE_PRAGMA_DIAGNOSTIC
+#pragma GCC diagnostic ignored "-Wpragmas"
+#pragma GCC diagnostic ignored "-Wunknown-warning-option"
+#pragma GCC diagnostic ignored "-Wredundant-decls"
+#endif
+
 FILE *const stdin = &__stdio; __strong_reference(stdin, stdout); __strong_reference(stdin, stderr);
 
 void __weak __assert_func(const char *file, int line, const char *func, const char *failedexpr) {
@@ -151,4 +157,4 @@ PICO_RUNTIME_INIT_FUNC_PER_CORE(runtime_init_pre_core_tls_setup, PICO_RUNTIME_IN
 //            "ldr r0, =__tls_base\n"
 //            "bx lr\n"
 //            );
-//}
\ No newline at end of file
+//}
diff --git a/src/rp2_common/pico_crt0/rp2040/memmap_blocked_ram.ld b/src/rp2_common/pico_crt0/rp2040/memmap_blocked_ram.ld
index 6f5000566..82772d39c 100644
--- a/src/rp2_common/pico_crt0/rp2040/memmap_blocked_ram.ld
+++ b/src/rp2_common/pico_crt0/rp2040/memmap_blocked_ram.ld
@@ -4,10 +4,12 @@
     __exidx_end
     __etext
     __data_start__
+    __bothinit_array_start
     __preinit_array_start
     __preinit_array_end
     __init_array_start
     __init_array_end
+    __bothinit_array_end
     __fini_array_start
     __fini_array_end
     __data_end__
@@ -87,6 +89,7 @@ SECTIONS
 
         . = ALIGN(4);
         /* preinit data */
+        PROVIDE_HIDDEN (__bothinit_array_start = .);
         PROVIDE_HIDDEN (__preinit_array_start = .);
         KEEP(*(SORT(.preinit_array.*)))
         KEEP(*(.preinit_array))
@@ -98,6 +101,7 @@ SECTIONS
         KEEP(*(SORT(.init_array.*)))
         KEEP(*(.init_array))
         PROVIDE_HIDDEN (__init_array_end = .);
+        PROVIDE_HIDDEN (__bothinit_array_end = .);
 
         . = ALIGN(4);
         /* finit data */
diff --git a/src/rp2_common/pico_crt0/rp2040/memmap_copy_to_ram.ld b/src/rp2_common/pico_crt0/rp2040/memmap_copy_to_ram.ld
index 842ebfd3c..405d03f41 100644
--- a/src/rp2_common/pico_crt0/rp2040/memmap_copy_to_ram.ld
+++ b/src/rp2_common/pico_crt0/rp2040/memmap_copy_to_ram.ld
@@ -4,10 +4,12 @@
     __exidx_end
     __etext
     __data_start__
+    __bothinit_array_start
     __preinit_array_start
     __preinit_array_end
     __init_array_start
     __init_array_end
+    __bothinit_array_end
     __fini_array_start
     __fini_array_end
     __data_end__
@@ -155,6 +157,7 @@ SECTIONS
 
         . = ALIGN(4);
         /* preinit data */
+        PROVIDE_HIDDEN (__bothinit_array_start = .);
         PROVIDE_HIDDEN (__preinit_array_start = .);
         KEEP(*(SORT(.preinit_array.*)))
         KEEP(*(.preinit_array))
@@ -166,6 +169,7 @@ SECTIONS
         KEEP(*(SORT(.init_array.*)))
         KEEP(*(.init_array))
         PROVIDE_HIDDEN (__init_array_end = .);
+        PROVIDE_HIDDEN (__bothinit_array_end = .);
 
         . = ALIGN(4);
         /* finit data */
diff --git a/src/rp2_common/pico_crt0/rp2040/memmap_default.ld b/src/rp2_common/pico_crt0/rp2040/memmap_default.ld
index 51254012d..546b96088 100644
--- a/src/rp2_common/pico_crt0/rp2040/memmap_default.ld
+++ b/src/rp2_common/pico_crt0/rp2040/memmap_default.ld
@@ -4,10 +4,12 @@
     __exidx_end
     __etext
     __data_start__
+    __bothinit_array_start
     __preinit_array_start
     __preinit_array_end
     __init_array_start
     __init_array_end
+    __bothinit_array_end
     __fini_array_start
     __fini_array_end
     __data_end__
@@ -87,6 +89,7 @@ SECTIONS
 
         . = ALIGN(4);
         /* preinit data */
+        PROVIDE_HIDDEN (__bothinit_array_start = .);
         PROVIDE_HIDDEN (__preinit_array_start = .);
         KEEP(*(SORT(.preinit_array.*)))
         KEEP(*(.preinit_array))
@@ -98,6 +101,7 @@ SECTIONS
         KEEP(*(SORT(.init_array.*)))
         KEEP(*(.init_array))
         PROVIDE_HIDDEN (__init_array_end = .);
+        PROVIDE_HIDDEN (__bothinit_array_end = .);
 
         . = ALIGN(4);
         /* finit data */
diff --git a/src/rp2_common/pico_crt0/rp2040/memmap_no_flash.ld b/src/rp2_common/pico_crt0/rp2040/memmap_no_flash.ld
index dbf006a8c..d7bd823d7 100644
--- a/src/rp2_common/pico_crt0/rp2040/memmap_no_flash.ld
+++ b/src/rp2_common/pico_crt0/rp2040/memmap_no_flash.ld
@@ -4,10 +4,12 @@
     __exidx_end
     __etext
     __data_start__
+    __bothinit_array_start
     __preinit_array_start
     __preinit_array_end
     __init_array_start
     __init_array_end
+    __bothinit_array_end
     __fini_array_start
     __fini_array_end
     __data_end__
@@ -118,6 +120,7 @@ SECTIONS
 
         . = ALIGN(4);
         /* preinit data */
+        PROVIDE_HIDDEN (__bothinit_array_start = .);
         PROVIDE_HIDDEN (__preinit_array_start = .);
         KEEP(*(SORT(.preinit_array.*)))
         KEEP(*(.preinit_array))
@@ -129,6 +132,7 @@ SECTIONS
         KEEP(*(SORT(.init_array.*)))
         KEEP(*(.init_array))
         PROVIDE_HIDDEN (__init_array_end = .);
+        PROVIDE_HIDDEN (__bothinit_array_end = .);
 
         . = ALIGN(4);
         /* finit data */
diff --git a/src/rp2_common/pico_crt0/rp2350/memmap_copy_to_ram.ld b/src/rp2_common/pico_crt0/rp2350/memmap_copy_to_ram.ld
index 44c69f3b9..a87f0edbd 100644
--- a/src/rp2_common/pico_crt0/rp2350/memmap_copy_to_ram.ld
+++ b/src/rp2_common/pico_crt0/rp2350/memmap_copy_to_ram.ld
@@ -4,10 +4,12 @@
     __exidx_end
     __etext
     __data_start__
+    __bothinit_array_start
     __preinit_array_start
     __preinit_array_end
     __init_array_start
     __init_array_end
+    __bothinit_array_end
     __fini_array_start
     __fini_array_end
     __data_end__
@@ -173,6 +175,7 @@ SECTIONS
 
         . = ALIGN(4);
         /* preinit data */
+        PROVIDE_HIDDEN (__bothinit_array_start = .);
         PROVIDE_HIDDEN (__preinit_array_start = .);
         KEEP(*(SORT(.preinit_array.*)))
         KEEP(*(.preinit_array))
@@ -184,6 +187,7 @@ SECTIONS
         KEEP(*(SORT(.init_array.*)))
         KEEP(*(.init_array))
         PROVIDE_HIDDEN (__init_array_end = .);
+        PROVIDE_HIDDEN (__bothinit_array_end = .);
 
         . = ALIGN(4);
         /* finit data */
diff --git a/src/rp2_common/pico_crt0/rp2350/memmap_default.ld b/src/rp2_common/pico_crt0/rp2350/memmap_default.ld
index bce316d14..157035222 100644
--- a/src/rp2_common/pico_crt0/rp2350/memmap_default.ld
+++ b/src/rp2_common/pico_crt0/rp2350/memmap_default.ld
@@ -4,10 +4,12 @@
     __exidx_end
     __etext
     __data_start__
+    __bothinit_array_start
     __preinit_array_start
     __preinit_array_end
     __init_array_start
     __init_array_end
+    __bothinit_array_end
     __fini_array_start
     __fini_array_end
     __data_end__
@@ -77,6 +79,7 @@ SECTIONS
 
         . = ALIGN(4);
         /* preinit data */
+        PROVIDE_HIDDEN (__bothinit_array_start = .);
         PROVIDE_HIDDEN (__preinit_array_start = .);
         KEEP(*(SORT(.preinit_array.*)))
         KEEP(*(.preinit_array))
@@ -88,6 +91,7 @@ SECTIONS
         KEEP(*(SORT(.init_array.*)))
         KEEP(*(.init_array))
         PROVIDE_HIDDEN (__init_array_end = .);
+        PROVIDE_HIDDEN (__bothinit_array_end = .);
 
         . = ALIGN(4);
         /* finit data */
diff --git a/src/rp2_common/pico_crt0/rp2350/memmap_no_flash.ld b/src/rp2_common/pico_crt0/rp2350/memmap_no_flash.ld
index 5bedf6d21..9d3b2f9ce 100644
--- a/src/rp2_common/pico_crt0/rp2350/memmap_no_flash.ld
+++ b/src/rp2_common/pico_crt0/rp2350/memmap_no_flash.ld
@@ -4,10 +4,12 @@
     __exidx_end
     __etext
     __data_start__
+    __bothinit_array_start
     __preinit_array_start
     __preinit_array_end
     __init_array_start
     __init_array_end
+    __bothinit_array_end
     __fini_array_start
     __fini_array_end
     __data_end__
@@ -121,6 +123,7 @@ SECTIONS
 
         . = ALIGN(4);
         /* preinit data */
+        PROVIDE_HIDDEN (__bothinit_array_start = .);
         PROVIDE_HIDDEN (__preinit_array_start = .);
         KEEP(*(SORT(.preinit_array.*)))
         KEEP(*(.preinit_array))
@@ -132,6 +135,7 @@ SECTIONS
         KEEP(*(SORT(.init_array.*)))
         KEEP(*(.init_array))
         PROVIDE_HIDDEN (__init_array_end = .);
+        PROVIDE_HIDDEN (__bothinit_array_end = .);
 
         . = ALIGN(4);
         /* finit data */
diff --git a/src/rp2_common/pico_platform_compiler/include/pico/platform/compiler.h b/src/rp2_common/pico_platform_compiler/include/pico/platform/compiler.h
index 7f24008a2..00083b95e 100644
--- a/src/rp2_common/pico_platform_compiler/include/pico/platform/compiler.h
+++ b/src/rp2_common/pico_platform_compiler/include/pico/platform/compiler.h
@@ -21,6 +21,9 @@
 
 #if defined __GNUC__
 #include <sys/cdefs.h>
+#ifdef __PICOLIBC__
+#define __printflike(a,b) __picolibc_format(printf,a,b)
+#endif
 // note LLVM defines __GNUC__
 #ifdef __clang__
 #define PICO_C_COMPILER_IS_CLANG 1
diff --git a/src/rp2_common/pico_runtime/CMakeLists.txt b/src/rp2_common/pico_runtime/CMakeLists.txt
index e190d5106..8afb233dc 100644
--- a/src/rp2_common/pico_runtime/CMakeLists.txt
+++ b/src/rp2_common/pico_runtime/CMakeLists.txt
@@ -46,7 +46,9 @@ endforeach()
 
 # todo is this correct/needed?
 if (PICO_C_COMPILER_IS_GNU)
-    target_link_options(pico_runtime INTERFACE "--specs=nosys.specs")
+    if (PICO_CLIB STREQUAL "newlib")
+        target_link_options(${NAME} PRIVATE "--specs=nosys.specs")
+    endif()
 elseif (PICO_C_COMPILER_IS_CLANG)
    # target_link_options(pico_runtime INTERFACE "-nostdlib")
 endif()
diff --git a/src/rp2_common/pico_standard_link/CMakeLists.txt b/src/rp2_common/pico_standard_link/CMakeLists.txt
index c16968bba..380618734 100644
--- a/src/rp2_common/pico_standard_link/CMakeLists.txt
+++ b/src/rp2_common/pico_standard_link/CMakeLists.txt
@@ -125,13 +125,13 @@ if (NOT TARGET pico_standard_link)
     set(PICO_FLASH_SIZE_BYTES_STRING "${PICO_FLASH_SIZE_BYTES}")
     configure_file(${CMAKE_CURRENT_LIST_DIR}/pico_flash_region.template.ld ${CMAKE_BINARY_DIR}/pico_flash_region.ld)
     # add include path for linker scripts
-    target_link_options(pico_standard_link INTERFACE "LINKER:-L${CMAKE_BINARY_DIR}")
+    target_link_options(pico_standard_link INTERFACE "-L${CMAKE_BINARY_DIR}")
 
     # LINKER script will be PICO_TARGET_LINKER_SCRIPT if set on target, or ${CMAKE_CURRENT_LIST_DIR}/memmap_foo.ld
     # if PICO_TARGET_BINARY_TYPE is set to foo on the target, otherwise ${CMAKE_CURRENT_LIST_DIR}/memmap_${PICO_DEFAULT_BINARY_TYPE).ld
     set(_LINKER_SCRIPT_EXPRESSION "$<IF:$<BOOL:$<TARGET_PROPERTY:PICO_TARGET_LINKER_SCRIPT>>,$<TARGET_PROPERTY:PICO_TARGET_LINKER_SCRIPT>,${PICO_LINKER_SCRIPT_PATH}/memmap_$<IF:$<STREQUAL:$<TARGET_PROPERTY:PICO_TARGET_BINARY_TYPE>,>,${PICO_DEFAULT_BINARY_TYPE},$<TARGET_PROPERTY:PICO_TARGET_BINARY_TYPE>>.ld>")
     target_link_options(pico_standard_link INTERFACE
-        "LINKER:--script=${_LINKER_SCRIPT_EXPRESSION}"
+        "-T${_LINKER_SCRIPT_EXPRESSION}"
             )
     pico_add_link_depend(pico_standard_link ${_LINKER_SCRIPT_EXPRESSION})
     unset(_LINKER_SCRIPT_EXPRESSION)
@@ -191,4 +191,23 @@ if (NOT TARGET pico_standard_link)
             endif()
         endif()
     endif()
+
+    # Convert pico-sdk printf variant selection into picolibc version
+    # when using pico_printf_compiler
+
+    if (PICO_CLIB STREQUAL "picolibc")
+        if (RUNTIME_INCLUDE_PRINTF_MINIMAL)
+            target_link_options(pico_standard_link INTERFACE
+              $<$<STREQUAL:$<TARGET_PROPERTY:PICO_TARGET_PRINTF_IMPL>,pico_printf_compiler>:--printf=m>)
+        elseif (RUNTIME_INCLUDE_PRINTF_FLOAT)
+            # this is the default
+        elseif (RUNTIME_INCLUDE_PRINTF_LONG_LONG)
+            target_link_options(pico_standard_link INTERFACE
+              $<$<STREQUAL:$<TARGET_PROPERTY:PICO_TARGET_PRINTF_IMPL>,pico_printf_compiler>:--printf=l>)
+        else()
+            target_link_options(pico_standard_link INTERFACE
+              $<$<STREQUAL:$<TARGET_PROPERTY:PICO_TARGET_PRINTF_IMPL>,pico_printf_compiler>:--printf=i>)
+        endif()
+    endif()
+
 endif()