diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/virtex/startup/linkcmds')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/virtex/startup/linkcmds | 302 |
1 files changed, 215 insertions, 87 deletions
diff --git a/c/src/lib/libbsp/powerpc/virtex/startup/linkcmds b/c/src/lib/libbsp/powerpc/virtex/startup/linkcmds index 0e39bf66b7..898fd6b083 100644 --- a/c/src/lib/libbsp/powerpc/virtex/startup/linkcmds +++ b/c/src/lib/libbsp/powerpc/virtex/startup/linkcmds @@ -1,4 +1,4 @@ -/* Greg modifications +/* * This file contains directives for the GNU linker which are specific * to the virtex * This file is intended to be used together with dlentry.s @@ -46,98 +46,227 @@ SECTIONS *(set_domain_*); *(set_pseudo_*); - *(.eh_frame) - *(.gnu.linkonce.r*) - *(.descriptors) - *(rom_ver) - etext = ALIGN(0x10); - _etext = .; + /* C++ constructors/destructors */ + *(.gnu.linkonce.t*) - *(.gnu.linkonce.t*) + /* Initialization and finalization code. + * + * Various files can provide initialization and finalization functions. + * The bodies of these functions are in .init and .fini sections. We + * accumulate the bodies here, and prepend function prologues from + * ecrti.o and function epilogues from ecrtn.o. ecrti.o must be linked + * first; ecrtn.o must be linked last. Because these are wildcards, it + * doesn't matter if the user does not actually link against ecrti.o and + * ecrtn.o; the linker won't look for a file to match a wildcard. The + * wildcard also means that it doesn't matter which directory ecrti.o + * and ecrtn.o are in. + */ + PROVIDE (_init = .); + *ecrti.o(.init) + *(.init) + *ecrtn.o(.init) + + PROVIDE (_fini = .); + *ecrti.o(.fini) + *(.fini) + *ecrtn.o(.init) - __CTOR_LIST__ = .; - LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2) - *(.ctors) - LONG(0) - __CTOR_END__ = .; + /* + * C++ constructors and destructors for static objects. + * PowerPC EABI does not use crtstuff yet, so we build "old-style" + * constructor and destructor lists that begin with the list lenght + * end terminate with a NULL entry. + */ + + PROVIDE (__CTOR_LIST__ = .); + *crtbegin.o(.ctors) + *(.ctors) + *crtend.o(.ctors) + LONG(0) + PROVIDE (__CTOR_END__ = .); + + PROVIDE (__DTOR_LIST__ = .); + *crtbegin.o(.dtors) + *(.dtors) + *crtend.o(.dtors) + LONG(0) + PROVIDE (__DTOR_END__ = .); + + /* Exception frame info */ + *(.eh_frame) + /* Miscellaneous read-only data */ + _rodata_start = . ; + *(.gnu.linkonce.r*) + *(.lit) + *(.shdata) + *(.rodata) + *(.rodata1) + *(.descriptors) + *(rom_ver) + _erodata = .; - __DTOR_LIST__ = .; - LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2) - *(.dtors) - LONG(0) - __DTOR_END__ = .; + PROVIDE (__EXCEPT_START__ = .); + *(.gcc_except_table) + PROVIDE (__EXCEPT_END__ = .); + __GOT_START__ = .; + s.got = .; + *(.got.plt) + *(.got) + *(.got1) + PROVIDE (__GOT2_START__ = .); + PROVIDE (_GOT2_START_ = .); + *(.got2) + PROVIDE (__GOT2_END__ = .); + PROVIDE (_GOT2_END_ = .); + + PROVIDE (__FIXUP_START__ = .); + PROVIDE (_FIXUP_START_ = .); + *(.fixup) + PROVIDE (_FIXUP_END_ = .); + PROVIDE (__FIXUP_END__ = .); + + + /* Various possible names for the end of the .text section */ + etext = ALIGN(0x10); + _etext = .; *(.lit) *(.shdata) - _init = .; __init = .; *(.init) - _fini = .; __fini = .; *(.fini) _endtext = ALIGN(0x10); text.end = .; - } > RAM + text.size = text.end - text.start; + } >RAM text.size = text.end - text.start; - /* R/W Data */ - .data : - { - *(.data) - *(.data1) - *(.data.* .gnu.linkonce.d*) - PROVIDE (__SDATA_START__ = .); - *(.sdata*) - *(.gnu.linkonce.s.*) - } > RAM - - PROVIDE (__EXCEPT_START__ = .); - .gcc_except_table : - { - *(.gcc_except_table) - } >RAM - PROVIDE (__EXCEPT_END__ = .); + .jcr : { KEEP (*(.jcr)) } >RAM - __GOT_START__ = .; - .got : - { - s.got = .; - *(.got.plt) *(.got) - } > RAM - __GOT_END__ = .; + .rel.dyn : { + *(.rel.init) + *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) + *(.rel.fini) + *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) + *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*) + *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) + *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) + *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) + *(.rel.ctors) + *(.rel.dtors) + *(.rel.got) + *(.rel.sdata .rel.sdata.* .rel.gnu.linkonce.s.*) + *(.rel.sbss .rel.sbss.* .rel.gnu.linkonce.sb.*) + *(.rel.sdata2 .rel.sdata2.* .rel.gnu.linkonce.s2.*) + *(.rel.sbss2 .rel.sbss2.* .rel.gnu.linkonce.sb2.*) + *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) + } >RAM + .rela.dyn : { + *(.rela.init) + *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) + *(.rela.fini) + *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) + *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) + *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) + *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) + *(.rela.ctors) + *(.rela.dtors) + *(.rela.got) + *(.rela.got1) + *(.rela.got2) + *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*) + *(.rela.sbss .rela.sbss.* .rela.gnu.linkonce.sb.*) + *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*) + *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*) + *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) + } >RAM - .got1 : - { - *(.got1) - } >RAM + PROVIDE (__SDATA2_START__ = .); + .sdata2 : { *(.sdata2) *(.gnu.linkonce.s2.*) } >RAM + .sbss2 : { *(.sbss2) *(.gnu.linkonce.sb2.*) } >RAM + PROVIDE (__SBSS2_END__ = .); + + .sbss2 : { *(.sbss2) } >RAM + PROVIDE (__SBSS2_END__ = .); + + /* R/W Data */ + .data ( . ) : + { + . = ALIGN (4); - PROVIDE (__GOT2_START__ = .); - PROVIDE (_GOT2_START_ = .); - .got2 : - { - *(.got2) - } >RAM - PROVIDE (__GOT2_END__ = .); - PROVIDE (_GOT2_END_ = .); + data.start = .; - PROVIDE (__FIXUP_START__ = .); - PROVIDE (_FIXUP_START_ = .); - .fixup : { *(.fixup) } >RAM - PROVIDE (_FIXUP_END_ = .); - PROVIDE (__FIXUP_END__ = .); + *(.data) + *(.data1) + *(.data.* .gnu.linkonce.d.*) + PROVIDE (__SDATA_START__ = .); + *(.sdata*) + *(.gnu.linkonce.s.*) + data.end = .; + data.size = data.end - data.start; + } >RAM - PROVIDE (__SDATA2_START__ = .); - .sdata2 : { *(.sdata2) *(.gnu.linkonce.s2.*) } >RAM - .sbss2 : { *(.sbss2) *(.gnu.linkonce.sb2.*) } >RAM - PROVIDE (__SBSS2_END__ = .); + __SBSS_START__ = .; + .bss : + { + bss.start = .; + *(.bss .bss* .gnu.linkonce.b*) + *(.sbss*) *(COMMON) + . = ALIGN(4); + bss.end = .; + } >RAM + __SBSS_END__ = .; - __SBSS_START__ = .; - .bss : - { - bss.start = .; - *(.bss .bss* .gnu.linkonce.b*) - *(.sbss*) *(COMMON) - bss.end = ALIGN(4); - bss.size = bss.end - bss.start; - } > RAM - __SBSS_END__ = .; + __SBSS_START__ = .; + .bss : + { + bss.start = .; + *(.bss .bss* .gnu.linkonce.b*) + *(.sbss*) *(COMMON) + . = ALIGN(4); + bss.end = .; + bss.size = bss.end - bss.start; + } >RAM + __SBSS_END__ = .; + + PROVIDE(_bss_start = ADDR(.bss)); + PROVIDE(_bss_size = SIZEOF(.bss)); + PROVIDE(bss.size = SIZEOF(.bss)); + PROVIDE(_data_start = ADDR(.data)); + PROVIDE(_data_size = SIZEOF(.data)); + PROVIDE(_text_start = ADDR(.text)); + PROVIDE(_text_size = SIZEOF(.text)); + PROVIDE(_end = data.end); + + .gzipmalloc : { + . = ALIGN (16); + _startmalloc = .; + } >RAM + + + /* + * Interrupt stack setup + */ + IntrStack_start = ALIGN(0x10); + . += 0x4000; + intrStack = .; + PROVIDE(intrStackPtr = intrStack); + + /* Sections for compressed .text and .data */ + /* after the .datarom section is an int specifying */ + /* the length of the following compressed image */ + /* Executes once then could get overwritten */ + .textrom 0x100000 : + { + *(.textrom) + _endloader = .; + } >RAM + + .datarom : + { + _dr_start = .; + *(.datarom) + _dr_end = .; + } >RAM + dr_len = _dr_end - _dr_start; /* align bottom of 32k init stack at a 32k boundary */ . = . + 0x4000; @@ -155,15 +284,14 @@ SECTIONS PROVIDE(_end = intrStack); - .line 0 : { *(.line) } - .debug 0 : { *(.debug) } - .debug_sfnames 0 : { *(.debug_sfnames) } - .debug_srcinfo 0 : { *(.debug_srcinfo) } - .debug_pubnames 0 : { *(.debug_pubnames) } - .debug_aranges 0 : { *(.debug_aranges) } - .debug_aregion 0 : { *(.debug_aregion) } - .debug_macinfo 0 : { *(.debug_macinfo) } - .stab 0 : { *(.stab) } - .stabstr 0 : { *(.stabstr) } - + .line 0 : { *(.line) } + .debug 0 : { *(.debug) } + .debug_sfnames 0 : { *(.debug_sfnames) } + .debug_srcinfo 0 : { *(.debug_srcinfo) } + .debug_pubnames 0 : { *(.debug_pubnames) } + .debug_aranges 0 : { *(.debug_aranges) } + .debug_aregion 0 : { *(.debug_aregion) } + .debug_macinfo 0 : { *(.debug_macinfo) } + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } } |