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build(bl2): add symbols for memory layout

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Add symbols for mapping the physical memory layout of BL2. There are
symbols that partially satisfy this requirement, however, the naming of
these is inconsistent.

Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>
Change-Id: I83ce5e3f5c45b71022279649f823ed0cb33a145d
This commit is contained in:
Harrison Mutai 2023-04-19 10:08:56 +01:00
parent 5e7e8bfa4f
commit f6088168f0
3 changed files with 19 additions and 0 deletions
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3
bl2/bl2.ld.S
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@ -16,6 +16,8 @@ MEMORY {
}
SECTIONS {
RAM_REGION_START = ORIGIN(RAM);
RAM_REGION_LENGTH = LENGTH(RAM);
. = BL2_BASE;
ASSERT(. == ALIGN(PAGE_SIZE),
@ -116,6 +118,7 @@ SECTIONS {
__RW_END__ = .;
__BL2_END__ = .;
RAM_REGION_END = .;
__BSS_SIZE__ = SIZEOF(.bss);

13
bl2/bl2_el3.ld.S
View file

@ -31,7 +31,12 @@ MEMORY {
#endif /* !BL2_IN_XIP_MEM */
SECTIONS {
RAM_REGION_START = ORIGIN(RAM);
RAM_REGION_LENGTH = LENGTH(RAM);
#if BL2_IN_XIP_MEM
ROM_REGION_START = ORIGIN(ROM);
ROM_REGION_LENGTH = LENGTH(ROM);
. = BL2_RO_BASE;
ASSERT(. == ALIGN(PAGE_SIZE),
@ -43,6 +48,11 @@ SECTIONS {
"BL2_BASE address is not aligned on a page boundary.")
#endif /* BL2_IN_XIP_MEM */
#if SEPARATE_BL2_NOLOAD_REGION
RAM_NOLOAD_REGION_START = ORIGIN(RAM_NOLOAD);
RAM_NOLOAD_REGION_LENGTH = LENGTH(RAM_NOLOAD);
#endif
#if SEPARATE_CODE_AND_RODATA
.text . : {
__TEXT_START__ = .;
@ -109,6 +119,7 @@ SECTIONS {
"cpu_ops not defined for this platform.")
#if BL2_IN_XIP_MEM
ROM_REGION_END = .;
. = BL2_RW_BASE;
ASSERT(BL2_RW_BASE == ALIGN(PAGE_SIZE),
@ -138,6 +149,7 @@ SECTIONS {
#if SEPARATE_BL2_NOLOAD_REGION
__BL2_NOLOAD_END__ = .;
RAM_NOLOAD_REGION_END = .;
. = SAVED_ADDR;
#endif /* SEPARATE_BL2_NOLOAD_REGION */
@ -198,6 +210,7 @@ SECTIONS {
__COHERENT_RAM_END_UNALIGNED__ - __COHERENT_RAM_START__;
#endif /* USE_COHERENT_MEM */
RAM_REGION_END = .;
#if BL2_IN_XIP_MEM
ASSERT(. <= BL2_RW_LIMIT, "BL2's RW content has exceeded its limit.")
#else /* BL2_IN_XIP_MEM */

3
bl2u/bl2u.ld.S
View file

@ -18,6 +18,8 @@ MEMORY {
}
SECTIONS {
RAM_REGION_START = ORIGIN(RAM);
RAM_REGION_LENGTH = LENGTH(RAM);
. = BL2U_BASE;
ASSERT(. == ALIGN(PAGE_SIZE),
@ -115,4 +117,5 @@ SECTIONS {
__BSS_SIZE__ = SIZEOF(.bss);
ASSERT(. <= BL2U_LIMIT, "BL2U image has exceeded its limit.")
RAM_REGION_END = .;
}