[build] Canonicalise command list configuration

Move all command selection from config/defaults/<platform>.h to the
top-level config/general.h, using indented conditional blocks to
clarify which commands are supported and enabled on each platform.

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/config/defaults/efi.h

@@ -26,7 +26,6 @@ FILE_SECBOOT ( PERMITTED );
 #define TIME_EFI
 #define REBOOT_EFI
 #define ACPI_EFI
-#define FDT_EFI
 #define MPAPI_EFI
 #define NAP_EFI
 #define SERIAL_SPCR
@@ -48,8 +47,6 @@ FILE_SECBOOT ( PERMITTED );
 #define	USB_EFI			/* Provide EFI_USB_IO_PROTOCOL interface */
 #define USB_BLOCK		/* USB block devices */
 
-#define	REBOOT_CMD		/* Reboot command */
-
 #define EFI_SETTINGS		/* EFI variable settings */
 
 #define CERTS_EFI		/* EFI certificate sources */
@@ -57,26 +54,23 @@ FILE_SECBOOT ( PERMITTED );
 #if defined ( __i386__ ) || defined ( __x86_64__ )
 #define IOAPI_X86
 #define ENTROPY_RDRAND
-#define	CPUID_CMD		/* x86 CPU feature detection command */
 #define	UNSAFE_STD		/* Avoid setting direction flag */
+#define FDT_NULL
 #endif
 
 #if defined ( __arm__ ) || defined ( __aarch64__ )
 #define IOAPI_ARM
-#define FDT_CMD
+#define FDT_EFI
-#endif
-
-#if defined ( __aarch64__ )
-#define FDT_CMD
 #endif
 
 #if defined ( __loongarch__ )
 #define IOAPI_LOONG64
+#define FDT_EFI
 #endif
 
 #if defined ( __riscv )
 #define IOAPI_RISCV
-#define FDT_CMD
+#define FDT_EFI
 #endif
 
 #endif /* CONFIG_DEFAULTS_EFI_H */

src/config/defaults/linux.h

@@ -25,6 +25,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
 #define ACPI_LINUX
 #define MPAPI_NULL
 #define SERIAL_NULL
+#define FDT_NULL
 
 #define DRIVERS_LINUX
 

src/config/defaults/pcbios.h

@@ -27,6 +27,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
 #define ACPI_RSDP
 #define MPAPI_PCBIOS
 #define SERIAL_SPCR
+#define FDT_NULL
 
 #ifdef __x86_64__
 #define IOMAP_PAGES
@@ -49,7 +50,4 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
 #define	USB_KEYBOARD		/* USB keyboards */
 #define USB_BLOCK		/* USB block devices */
 
-#define	REBOOT_CMD		/* Reboot command */
-#define	CPUID_CMD		/* x86 CPU feature detection command */
-
 #endif /* CONFIG_DEFAULTS_PCBIOS_H */

src/config/defaults/sbi.h

@@ -22,6 +22,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
 #define DMAAPI_FLAT
 #endif
 
+#define FDT_SBI
 #define CONSOLE_SBI
 #define CONSOLE_SERIAL
 #define REBOOT_SBI
@@ -37,8 +38,4 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
 #define SMBIOS_NULL
 #define TIME_NULL
 
-#define REBOOT_CMD
-#define POWEROFF_CMD
-#define FDT_CMD
-
 #endif /* CONFIG_DEFAULTS_SBI_H */

src/config/general.h

@@ -159,50 +159,66 @@ FILE_SECBOOT ( PERMITTED );
   #define IMAGE_GZIP
 #endif
 
-/*
+/*****************************************************************************
- * Command-line commands to include
+ *
+ * Command-line and script commands to include
  *
  */
+
+/* Commands supported on all platforms */
 #define AUTOBOOT_CMD		/* Automatic booting */
-#define	NVO_CMD			/* Non-volatile option storage commands */
-#define	CONFIG_CMD		/* Option configuration console */
-#define	IFMGMT_CMD		/* Interface management commands */
-#define	IWMGMT_CMD		/* Wireless interface management commands */
-#define IBMGMT_CMD		/* Infiniband management commands */
-#define FCMGMT_CMD		/* Fibre Channel management commands */
-#define	ROUTE_CMD		/* Routing table management commands */
-#define IMAGE_CMD		/* Image management commands */
-#define DHCP_CMD		/* DHCP management commands */
-#define SANBOOT_CMD		/* SAN boot commands */
-#define MENU_CMD		/* Menu commands */
-#define FORM_CMD		/* Form commands */
-#define LOGIN_CMD		/* Login command */
-#define SYNC_CMD		/* Sync command */
-#define SHELL_CMD		/* Shell command */
-//#define NSLOOKUP_CMD		/* DNS resolving command */
-//#define TIME_CMD		/* Time commands */
-//#define DIGEST_CMD		/* Image crypto digest commands */
-//#define LOTEST_CMD		/* Loopback testing commands */
-//#define VLAN_CMD		/* VLAN commands */
-//#define PXE_CMD		/* PXE commands */
-//#define REBOOT_CMD		/* Reboot command */
-//#define POWEROFF_CMD		/* Power off command */
-//#define IMAGE_TRUST_CMD	/* Image trust management commands */
-//#define IMAGE_CRYPT_CMD	/* Image encryption management commands */
-//#define PCI_CMD		/* PCI commands */
-//#define PARAM_CMD		/* Request parameter commands */
-//#define NEIGHBOUR_CMD		/* Neighbour management commands */
-//#define PING_CMD		/* Ping command */
-//#define CONSOLE_CMD		/* Console command */
-//#define IPSTAT_CMD		/* IP statistics commands */
-//#define PROFSTAT_CMD		/* Profiling commands */
-//#define NTP_CMD		/* NTP commands */
 //#define CERT_CMD		/* Certificate management commands */
-//#define IMAGE_MEM_CMD		/* Read memory command */
+#define CONFIG_CMD		/* Option configuration console */
+//#define CONSOLE_CMD		/* Console command */
+//#define DIGEST_CMD		/* Image crypto digest commands */
+#define DHCP_CMD		/* DHCP management commands */
+#define FCMGMT_CMD		/* Fibre Channel management commands */
+#define FORM_CMD		/* Form commands */
+#define IBMGMT_CMD		/* Infiniband management commands */
+#define IFMGMT_CMD		/* Interface management commands */
+#define IMAGE_CMD		/* Image management commands */
 #define IMAGE_ARCHIVE_CMD	/* Archive image management commands */
+//#define IMAGE_CRYPT_CMD	/* Image encryption management commands */
+//#define IMAGE_MEM_CMD		/* Read memory command */
+//#define IMAGE_TRUST_CMD	/* Image trust management commands */
+//#define IPSTAT_CMD		/* IP statistics commands */
+#define IWMGMT_CMD		/* Wireless interface management commands */
+#define LOGIN_CMD		/* Login command */
+//#define LOTEST_CMD		/* Loopback testing commands */
+#define MENU_CMD		/* Menu commands */
+//#define NEIGHBOUR_CMD		/* Neighbour management commands */
+//#define NSLOOKUP_CMD		/* DNS resolving command */
+//#define NTP_CMD		/* NTP commands */
+#define NVO_CMD			/* Non-volatile option storage commands */
+//#define PARAM_CMD		/* Request parameter commands */
+//#define PCI_CMD		/* PCI commands */
+//#define PING_CMD		/* Ping command */
+//#define PROFSTAT_CMD		/* Profiling commands */
+//#define PXE_CMD		/* PXE commands */
+#define ROUTE_CMD		/* Routing table management commands */
+#define SANBOOT_CMD		/* SAN boot commands */
+#define SHELL_CMD		/* Shell command */
 #define SHIM_CMD		/* EFI shim command (or dummy command) */
+#define SYNC_CMD		/* Sync command */
+//#define TIME_CMD		/* Time commands */
 //#define USB_CMD		/* USB commands */
-//#define FDT_CMD		/* Flattened Device Tree commands */
+//#define VLAN_CMD		/* VLAN commands */
+
+/* Commands supported only on systems capable of rebooting */
+#if ! defined ( REBOOT_NULL )
+  #define POWEROFF_CMD		/* Power off command */
+  #define REBOOT_CMD		/* Reboot command */
+#endif
+
+/* Commands supported only on systems that may use FDTs */
+#if ! defined ( FDT_NULL )
+  #define FDT_CMD		/* Flattened Device Tree commands */
+#endif
+
+/* Commands supported only on x86 CPUs */
+#if defined ( __i386__ ) || defined ( __x86_64__ )
+  #define CPUID_CMD		/* x86 CPU feature detection command */
+#endif
 
 /*
  * Certificate sources