Use same cflags as C SDK compilation

Author: yogh333

ledger_secure_sdk_sys/c_sdk_build_flex.cflags

@@ -1,22 +1,33 @@
+--sysroot="/usr/lib/arm-none-eabi"
 -Oz
 -g0
 -fomit-frame-pointer
 -momit-leaf-frame-pointer
 -fno-common
--mlittle-endian
 -std=gnu99
+-Wall
+-Wextra
+-Wno-main
+-Werror=int-to-pointer-cast
+-Wno-error=int-conversion
+-Wimplicit-fallthrough
+-Wvla
+-Wno-undef
+-Wshadow
+-Wformat=2
+-Wformat-security
+-Wwrite-strings
+-Wno-unused-command-line-argument
 -fdata-sections
 -ffunction-sections
 -funsigned-char
 -fshort-enums
 -mno-unaligned-access
 -fropi
 -fno-jump-tables
--nostdlib
--nodefaultlibs
+-msoft-float
 -frwpi
---target=armv8m-none-eabi
+--target=arm-none-eabi
 -mcpu=cortex-m35p+nodsp
--mthumb
--msoft-float
--Wno-unused-command-line-argument
+-mlittle-endian
+-mthumb

ledger_secure_sdk_sys/c_sdk_build_nanosplus.cflags

@@ -1,22 +1,33 @@
+--sysroot="/usr/lib/arm-none-eabi"
 -Oz
 -g0
 -fomit-frame-pointer
 -momit-leaf-frame-pointer
 -fno-common
--mlittle-endian
 -std=gnu99
+-Wall
+-Wextra
+-Wno-main
+-Werror=int-to-pointer-cast
+-Wno-error=int-conversion
+-Wimplicit-fallthrough
+-Wvla
+-Wno-undef
+-Wshadow
+-Wformat=2
+-Wformat-security
+-Wwrite-strings
+-Wno-unused-command-line-argument
 -fdata-sections
 -ffunction-sections
 -funsigned-char
 -fshort-enums
 -mno-unaligned-access
 -fropi
 -fno-jump-tables
--nostdlib
--nodefaultlibs
+-msoft-float
 -frwpi
---target=armv8m-none-eabi
+--target=arm-none-eabi
 -mcpu=cortex-m35p+nodsp
+-mlittle-endian
 -mthumb
--msoft-float
--Wno-unused-command-line-argument

ledger_secure_sdk_sys/c_sdk_build_nanox.cflags

@@ -1,21 +1,32 @@
+--sysroot="/usr/lib/arm-none-eabi"
 -Oz
 -g0
 -fomit-frame-pointer
 -momit-leaf-frame-pointer
 -fno-common
--mlittle-endian
 -std=gnu99
+-Wall
+-Wextra
+-Wno-main
+-Werror=int-to-pointer-cast
+-Wno-error=int-conversion
+-Wimplicit-fallthrough
+-Wvla
+-Wno-undef
+-Wshadow
+-Wformat=2
+-Wformat-security
+-Wwrite-strings
+-Wno-unused-command-line-argument
 -fdata-sections
 -ffunction-sections
 -funsigned-char
 -fshort-enums
 -mno-unaligned-access
 -fropi
 -fno-jump-tables
--nostdlib
--nodefaultlibs
 -frwpi
--mthumb
---target=armv6m-none-eabi
+--target=arm-none-eabi
 -mcpu=cortex-m0plus
--Wno-unused-command-line-argument
+-mlittle-endian
+-mthumb

ledger_secure_sdk_sys/c_sdk_build_stax.cflags

@@ -1,22 +1,33 @@
+--sysroot="/usr/lib/arm-none-eabi"
 -Oz
 -g0
 -fomit-frame-pointer
 -momit-leaf-frame-pointer
 -fno-common
--mlittle-endian
 -std=gnu99
+-Wall
+-Wextra
+-Wno-main
+-Werror=int-to-pointer-cast
+-Wno-error=int-conversion
+-Wimplicit-fallthrough
+-Wvla
+-Wno-undef
+-Wshadow
+-Wformat=2
+-Wformat-security
+-Wwrite-strings
+-Wno-unused-command-line-argument
 -fdata-sections
 -ffunction-sections
 -funsigned-char
 -fshort-enums
 -mno-unaligned-access
 -fropi
 -fno-jump-tables
--nostdlib
--nodefaultlibs
+-msoft-float
 -frwpi
---target=armv8m-none-eabi
+--target=arm-none-eabi
 -mcpu=cortex-m35p+nodsp
--mthumb
--msoft-float
--Wno-unused-command-line-argument
+-mlittle-endian
+-mthumb