3 * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
5 * SPDX-License-Identifier: GPL-2.0+
9 #define __ASSEMBLY__ /* Dirty trick to get only #defines */
11 #define __ASM_STUB_PROCESSOR_H__ /* don't include asm/processor. */
14 #include <environment.h>
15 #include <linux/stringify.h>
17 /* Handle HOSTS that have prepended crap on symbol names, not TARGETS. */
18 #if defined(__APPLE__)
19 /* Leading underscore on symbols */
21 #else /* No leading character on symbols */
26 * Generate embedded environment table
27 * inside U-Boot image, if needed.
29 #if defined(ENV_IS_EMBEDDED) || defined(CONFIG_BUILD_ENVCRC)
31 * Only put the environment in it's own section when we are building
32 * U-Boot proper. The host based program "tools/envcrc" does not need
33 * a seperate section. Note that ENV_CRC is only defined when building
36 #if (defined(CONFIG_SYS_USE_PPCENV) || defined(CONFIG_NAND_U_BOOT)) && \
37 defined(ENV_CRC) /* Environment embedded in U-Boot .ppcenv section */
38 /* XXX - This only works with GNU C */
39 # define __PPCENV__ __attribute__ ((section(".ppcenv")))
40 # define __PPCTEXT__ __attribute__ ((section(".text")))
42 #elif defined(USE_HOSTCC) /* Native for 'tools/envcrc' */
43 # define __PPCENV__ /*XXX DO_NOT_DEL_THIS_COMMENT*/
44 # define __PPCTEXT__ /*XXX DO_NOT_DEL_THIS_COMMENT*/
46 #else /* Environment is embedded in U-Boot's .text section */
47 /* XXX - This only works with GNU C */
48 # define __PPCENV__ __attribute__ ((section(".text")))
49 # define __PPCTEXT__ __attribute__ ((section(".text")))
53 * Macros to generate global absolutes.
56 # define GEN_SET_VALUE(name, value) \
57 asm(".set " GEN_SYMNAME(name) ", " GEN_VALUE(value))
59 # define GEN_SET_VALUE(name, value) \
60 asm(GEN_SYMNAME(name) " = " GEN_VALUE(value))
62 #define GEN_SYMNAME(str) SYM_CHAR #str
63 #define GEN_VALUE(str) #str
64 #define GEN_ABS(name, value) \
65 asm(".globl " GEN_SYMNAME(name)); \
66 GEN_SET_VALUE(name, value)
69 * Check to see if we are building with a
70 * computed CRC. Otherwise define it as ~0.
76 #define DEFAULT_ENV_INSTANCE_EMBEDDED
77 #include <env_default.h>
79 #ifdef CONFIG_ENV_ADDR_REDUND
80 env_t redundand_environment __PPCENV__ = {
81 0, /* CRC Sum: invalid */
82 0, /* Flags: invalid */
87 #endif /* CONFIG_ENV_ADDR_REDUND */
90 * These will end up in the .text section
91 * if the environment strings are embedded
92 * in the image. When this is used for
93 * tools/envcrc, they are placed in the
94 * .data/.sdata section.
97 unsigned long env_size __PPCTEXT__ = sizeof(env_t);
102 GEN_ABS(env_offset, CONFIG_ENV_OFFSET);
104 #endif /* ENV_IS_EMBEDDED */