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libdl: Add small data support to the remaining PowerPC BSPs.

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Updates #3687
This commit is contained in:
Chris Johns
2019-03-06 21:15:56 +11:00
parent 96e4b22312
commit ec1dd51aae
8 changed files with 144 additions and 42 deletions
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19
bsps/powerpc/gen5200/start/linkcmds.gen5200_base
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@@ -27,6 +27,15 @@ RamBase = bsp_ram_start;
RamSize = bsp_ram_size;
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x0;
/*
* The upper layer linker command file may optionally define the symbol
* bsp_section_small_data_area_size. By default, the small data area is
* defined by the .sdata and .sbss input sections. Define
* bsp_section_small_data_area_size, if you want to make space available for
* dynamically loaded libraries (libdl). Small memory targets which do not use
* libdl, should not define this symbol.
*/
MEMORY {
UNEXPECTED_SECTIONS : ORIGIN = 0xffffffff, LENGTH = 0
}
@@ -233,6 +242,7 @@ SECTIONS {
} > RAM
.sdata : {
bsp_section_sdata_begin = .;
PROVIDE (_SDA_BASE_ = 32768);
*(.sdata .sdata.* .gnu.linkonce.s.*)
@@ -245,13 +255,14 @@ SECTIONS {
* BSP: End of data section
*/
bsp_section_data_end = .;
bsp_section_sdata_end = .;
} > RAM
.sbss : {
/*
* BSP: Start of bss section
*/
bsp_section_bss_start = .;
bsp_section_sbss_begin = .;
__bss_start = .;
@@ -260,11 +271,17 @@ SECTIONS {
*(.dynsbss)
*(.sbss .sbss.* .gnu.linkonce.sb.*)
PROVIDE (__sbss_end = .); PROVIDE (___sbss_end = .);
bsp_section_sbss_end = .;
bsp_section_sdata_libdl_begin = .;
. = DEFINED(bsp_section_small_data_area_size) ?
bsp_section_sdata_begin + bsp_section_small_data_area_size : .;
bsp_section_sdata_libdl_end = .;
. = ALIGN (bsp_section_align);
} > RAM
.bss : {
bsp_section_bss_start = .;
*(COMMON)
*(.dynbss)
*(.bss .bss.* .gnu.linkonce.b.*)