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* scripttempl/elf.sc: Add support for .sbss2 and .sdata2 sections. 

Add new BSS_PLT variable for when .plt need not be contained in
the file.  Move _etext so that it is also after .fini, and provide
both etext and _etext with a leading underscore.  Mark the start
and end of .sbss.
This commit is contained in:
Geoffrey Keating 2000-04-13 23:32:48 +00:00
parent 65edb64b15
commit 6c86c54107
2 changed files with 39 additions and 13 deletions
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8
ld/ChangeLog
View File

@ -1,3 +1,11 @@
2000-04-13 Geoff Keating <geoffk@cygnus.com>
* scripttempl/elf.sc: Add support for .sbss2 and .sdata2 sections.
Add new BSS_PLT variable for when .plt need not be contained in
the file. Move _etext so that it is also after .fini, and provide
both etext and _etext with a leading underscore. Mark the start
and end of .sbss.
2000-04-12 Alan Modra <alan@linuxcare.com.au>
* emultempl/elf32.em (struct orphan_save): New.

44
ld/scripttempl/elf.sc
View File

@ -21,6 +21,7 @@
# OTHER_BSS_SYMBOLS - symbols that appear at the start of the
# .bss section besides __bss_start.
# DATA_PLT - .plt should be in data segment, not text segment.
# BSS_PLT - .plt should be in bss segment
# TEXT_DYNAMIC - .dynamic in text segment, not data segment.
# EMBEDDED - whether this is for an embedded system.
# SHLIB_TEXT_START_ADDR - if set, add to SIZEOF_HEADERS to set
@ -47,6 +48,8 @@ INTERP=".interp ${RELOCATING-0} : { *(.interp) }"
PLT=".plt ${RELOCATING-0} : { *(.plt) }"
DYNAMIC=".dynamic ${RELOCATING-0} : { *(.dynamic) }"
RODATA=".rodata ${RELOCATING-0} : { *(.rodata) ${RELOCATING+*(.rodata.*)} ${RELOCATING+*(.gnu.linkonce.r*)} }"
SBSS2=".sbss2 ${RELOCATING-0} : { *(.sbss2) }"
SDATA2=".sdata2 ${RELOCATING-0} : { *(.sdata2) }"
CTOR=".ctors ${CONSTRUCTING-0} :
{
${CONSTRUCTING+${CTOR_START}}
@ -121,8 +124,6 @@ SECTIONS
.gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d) }
.gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r) }
.rel.init ${RELOCATING-0} : { *(.rel.init) }
.rela.init ${RELOCATING-0} : { *(.rela.init) }
.rel.text ${RELOCATING-0} :
{
*(.rel.text)
@ -135,6 +136,8 @@ SECTIONS
${RELOCATING+*(.rela.text.*)}
${RELOCATING+*(.rela.gnu.linkonce.t*)}
}
.rel.init ${RELOCATING-0} : { *(.rel.init) }
.rela.init ${RELOCATING-0} : { *(.rela.init) }
.rel.fini ${RELOCATING-0} : { *(.rel.fini) }
.rela.fini ${RELOCATING-0} : { *(.rela.fini) }
.rel.rodata ${RELOCATING-0} :
@ -183,20 +186,19 @@ SECTIONS
}
.rel.sbss ${RELOCATING-0} : { *(.rel.sbss) }
.rela.sbss ${RELOCATING-0} : { *(.rela.sbss) }
.rel.sdata2 ${RELOCATING-0} : { *(.rel.sdata2) }
.rela.sdata2 ${RELOCATING-0} : { *(.rela.sdata2) }
.rel.sbss2 ${RELOCATING-0} : { *(.rel.sbss2) }
.rela.sbss2 ${RELOCATING-0} : { *(.rela.sbss2) }
.rel.bss ${RELOCATING-0} : { *(.rel.bss) }
.rela.bss ${RELOCATING-0} : { *(.rela.bss) }
.rel.plt ${RELOCATING-0} : { *(.rel.plt) }
.rela.plt ${RELOCATING-0} : { *(.rela.plt) }
${OTHER_PLT_RELOC_SECTIONS}
.init ${RELOCATING-0} :
{
${INIT_START}
KEEP (*(.init))
${INIT_END}
} =${NOP-0}
${DATA_PLT-${PLT}}
${DATA_PLT-${BSS_PLT-${PLT}}}
/* .text should be before .init and so on, so that -Ttext=0x1234
will work. */
.text ${RELOCATING-0} :
{
${RELOCATING+${TEXT_START_SYMBOLS}}
@ -208,16 +210,25 @@ SECTIONS
${RELOCATING+*(.gnu.linkonce.t*)}
${RELOCATING+${OTHER_TEXT_SECTIONS}}
} =${NOP-0}
${RELOCATING+_etext = .;}
${RELOCATING+PROVIDE (etext = .);}
.init ${RELOCATING-0} :
{
${INIT_START}
KEEP (*(.init))
${INIT_END}
} =${NOP-0}
.fini ${RELOCATING-0} :
{
${FINI_START}
KEEP (*(.fini))
${FINI_END}
} =${NOP-0}
${RELOCATING+PROVIDE (__etext = .);}
${RELOCATING+PROVIDE (_etext = .);}
${RELOCATING+PROVIDE (etext = .);}
${WRITABLE_RODATA-${RODATA}}
.rodata1 ${RELOCATING-0} : { *(.rodata1) }
${CREATE_SHLIB-${SDATA2}}
${CREATE_SHLIB-${SBSS2}}
${RELOCATING+${OTHER_READONLY_SECTIONS}}
/* Adjust the address for the data segment. We want to adjust up to
@ -242,7 +253,9 @@ SECTIONS
${RELOCATING+${DTOR}}
${DATA_PLT+${PLT}}
${RELOCATING+${OTHER_GOT_SYMBOLS}}
.got ${RELOCATING-0} : { *(.got.plt) *(.got) }
.got ${RELOCATING-0} : { *(.got.plt) *(.got) }
${CREATE_SHLIB+${SDATA2}}
${CREATE_SHLIB+${SBSS2}}
${TEXT_DYNAMIC-${DYNAMIC}}
/* We want the small data sections together, so single-instruction offsets
can access them all, and initialized data all before uninitialized, so
@ -261,11 +274,16 @@ SECTIONS
${RELOCATING+${OTHER_BSS_SYMBOLS}}
.sbss ${RELOCATING-0} :
{
${RELOCATING+PROVIDE (__sbss_start = .);}
${RELOCATING+PROVIDE (___sbss_start = .);}
*(.dynsbss)
*(.sbss)
${RELOCATING+*(.sbss.*)}
*(.scommon)
${RELOCATING+PROVIDE (__sbss_end = .);}
${RELOCATING+PROVIDE (___sbss_end = .);}
}
${BSS_PLT+${PLT}}
.bss ${RELOCATING-0} :
{
*(.dynbss)