Strip out the useless junk. All we really care about is the text,
data and bss sections. All the rest is needed for normal binaries, but boot loaders aren't normal.
This commit is contained in:
Warner Losh
parent
fc4dff81bb
commit
c4a9bff135
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=238186
@ -31,258 +31,26 @@ SECTIONS
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.text :
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{
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*(.text)
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*(.text.*)
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*(.stub)
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/* .gnu.warning sections are handled specially by elf32.em. */
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*(.gnu.warning)
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*(.gnu.linkonce.t.*)
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*(.glue_7t) *(.glue_7)
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}
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.interp : { *(.interp) }
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.hash : { *(.hash) }
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.dynsym : { *(.dynsym) }
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.dynstr : { *(.dynstr) }
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.gnu.version : { *(.gnu.version) }
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.gnu.version_d : { *(.gnu.version_d) }
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.gnu.version_r : { *(.gnu.version_r) }
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.rel.init : { *(.rel.init) }
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.rela.init : { *(.rela.init) }
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.rel.text :
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{
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*(.rel.text)
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*(.rel.text.*)
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*(.rel.gnu.linkonce.t.*)
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}
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.rela.text :
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{
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*(.rela.text)
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*(.rela.text.*)
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*(.rela.gnu.linkonce.t.*)
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}
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.rel.fini : { *(.rel.fini) }
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.rela.fini : { *(.rela.fini) }
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.rel.rodata :
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{
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*(.rel.rodata)
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*(.rel.rodata.*)
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*(.rel.gnu.linkonce.r.*)
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}
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.rela.rodata :
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{
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*(.rela.rodata)
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*(.rela.rodata.*)
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*(.rela.gnu.linkonce.r.*)
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}
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.rel.data :
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{
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*(.rel.data)
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*(.rel.data.*)
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*(.rel.gnu.linkonce.d.*)
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}
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.rela.data :
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{
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*(.rela.data)
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*(.rela.data.*)
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*(.rela.gnu.linkonce.d.*)
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}
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.rel.ctors : { *(.rel.ctors) }
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.rela.ctors : { *(.rela.ctors) }
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.rel.dtors : { *(.rel.dtors) }
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.rela.dtors : { *(.rela.dtors) }
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.rel.got : { *(.rel.got) }
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.rela.got : { *(.rela.got) }
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.rel.sdata :
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{
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*(.rel.sdata)
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*(.rel.sdata.*)
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*(.rel.gnu.linkonce.s.*)
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}
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.rela.sdata :
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{
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*(.rela.sdata)
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*(.rela.sdata.*)
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*(.rela.gnu.linkonce.s.*)
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}
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.rel.sbss :
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{
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*(.rel.sbss)
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*(.rel.sbss.*)
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*(.rel.gnu.linkonce.sb.*)
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}
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.rela.sbss :
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{
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*(.rela.sbss)
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*(.rela.sbss.*)
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*(.rel.gnu.linkonce.sb.*)
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}
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.rel.sdata2 :
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{
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*(.rel.sdata2)
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*(.rel.sdata2.*)
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*(.rel.gnu.linkonce.s2.*)
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}
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.rela.sdata2 :
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{
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*(.rela.sdata2)
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*(.rela.sdata2.*)
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*(.rela.gnu.linkonce.s2.*)
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}
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.rel.sbss2 :
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{
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*(.rel.sbss2)
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*(.rel.sbss2.*)
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*(.rel.gnu.linkonce.sb2.*)
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}
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.rela.sbss2 :
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{
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*(.rela.sbss2)
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*(.rela.sbss2.*)
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*(.rela.gnu.linkonce.sb2.*)
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}
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.rel.bss :
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{
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*(.rel.bss)
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*(.rel.bss.*)
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*(.rel.gnu.linkonce.b.*)
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}
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.rela.bss :
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{
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*(.rela.bss)
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*(.rela.bss.*)
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*(.rela.gnu.linkonce.b.*)
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}
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.rel.plt : { *(.rel.plt) }
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.rela.plt : { *(.rela.plt) }
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.init :
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{
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KEEP (*(.init))
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} =0
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.plt : { *(.plt) }
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.fini :
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{
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KEEP (*(.fini))
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} =0
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PROVIDE (__etext = .);
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PROVIDE (_etext = .);
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PROVIDE (etext = .);
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.rodata : { *(.rodata) *(.rodata.*) *(.gnu.linkonce.r.*) }
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.rodata1 : { *(.rodata1) }
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.sdata2 : { *(.sdata2) *(.sdata2.*) *(.gnu.linkonce.s2.*) }
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.sbss2 : { *(.sbss2) *(.sbss2.*) *(.gnu.linkonce.sb2.*) }
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.data :
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{
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__data_start = . ;
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*(.data)
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*(.data.*)
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*(.gnu.linkonce.d.*)
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SORT(CONSTRUCTORS)
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}
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.data1 : { *(.data1) }
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. = 0x21200000;
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.eh_frame : { KEEP (*(.eh_frame)) }
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.gcc_except_table : { *(.gcc_except_table) }
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.ctors :
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{
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/* gcc uses crtbegin.o to find the start of
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the constructors, so we make sure it is
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first. Because this is a wildcard, it
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doesn't matter if the user does not
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actually link against crtbegin.o; the
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linker won't look for a file to match a
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wildcard. The wildcard also means that it
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doesn't matter which directory crtbegin.o
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is in. */
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KEEP (*crtbegin.o(.ctors))
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/* We don't want to include the .ctor section from
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from the crtend.o file until after the sorted ctors.
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The .ctor section from the crtend file contains the
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end of ctors marker and it must be last */
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KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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}
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.dtors :
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{
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KEEP (*crtbegin.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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}
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.got : { *(.got.plt) *(.got) }
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.dynamic : { *(.dynamic) }
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/* We want the small data sections together, so single-instruction offsets
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can access them all, and initialized data all before uninitialized, so
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we can shorten the on-disk segment size. */
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.sdata :
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{
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*(.sdata)
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*(.sdata.*)
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*(.gnu.linkonce.s.*)
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}
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_edata = .;
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PROVIDE (edata = .);
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__bss_start = .;
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__bss_start__ = .;
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.sbss :
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{
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PROVIDE (__sbss_start = .);
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PROVIDE (___sbss_start = .);
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*(.dynsbss)
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*(.sbss)
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*(.sbss.*)
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*(.gnu.linkonce.sb.*)
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*(.scommon)
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PROVIDE (__sbss_end = .);
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PROVIDE (___sbss_end = .);
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}
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.bss :
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{
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*(.dynbss)
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*(.bss)
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*(.bss.*)
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*(.gnu.linkonce.b.*)
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*(COMMON)
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/* Align here to ensure that the .bss section occupies space up to
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_end. Align after .bss to ensure correct alignment even if the
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.bss section disappears because there are no input sections. */
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. = ALIGN(32 / 8);
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}
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. = ALIGN(32 / 8);
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_end = .;
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_bss_end__ = . ; __bss_end__ = . ; __end__ = . ;
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PROVIDE (end = .);
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/* Stabs debugging sections. */
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.stab 0 : { *(.stab) }
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.stabstr 0 : { *(.stabstr) }
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.stab.excl 0 : { *(.stab.excl) }
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.stab.exclstr 0 : { *(.stab.exclstr) }
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.stab.index 0 : { *(.stab.index) }
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.stab.indexstr 0 : { *(.stab.indexstr) }
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.comment 0 : { *(.comment) }
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/* DWARF debug sections.
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Symbols in the DWARF debugging sections are relative to the beginning
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of the section so we begin them at 0. */
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/* DWARF 1 */
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.debug 0 : { *(.debug) }
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.line 0 : { *(.line) }
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/* GNU DWARF 1 extensions */
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.debug_srcinfo 0 : { *(.debug_srcinfo) }
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.debug_sfnames 0 : { *(.debug_sfnames) }
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/* DWARF 1.1 and DWARF 2 */
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.debug_aranges 0 : { *(.debug_aranges) }
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.debug_pubnames 0 : { *(.debug_pubnames) }
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/* DWARF 2 */
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.debug_info 0 : { *(.debug_info) *(.gnu.linkonce.wi.*) }
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.debug_abbrev 0 : { *(.debug_abbrev) }
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.debug_line 0 : { *(.debug_line) }
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.debug_frame 0 : { *(.debug_frame) }
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.debug_str 0 : { *(.debug_str) }
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.debug_loc 0 : { *(.debug_loc) }
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.debug_macinfo 0 : { *(.debug_macinfo) }
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/* SGI/MIPS DWARF 2 extensions */
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.debug_weaknames 0 : { *(.debug_weaknames) }
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.debug_funcnames 0 : { *(.debug_funcnames) }
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.debug_typenames 0 : { *(.debug_typenames) }
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.debug_varnames 0 : { *(.debug_varnames) }
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/* These must appear regardless of . */
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}
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