From 412617e2f17358eb06b4c67d04134d3b56e1e8e4 Mon Sep 17 00:00:00 2001 From: David McCullough Date: Sun, 17 Feb 2002 23:26:11 +0000 Subject: [PATCH] Changes from Pauli to enable moving strings into the text area (if possible). --- elf2flt.ld | 113 +++++++++++++++++++++++----------------------- elf2flt.movdat.ld | 95 ++++++++++++++++++++++++++++++++++++++ ld-elf2flt | 15 ++++++ 3 files changed, 166 insertions(+), 57 deletions(-) create mode 100644 elf2flt.movdat.ld diff --git a/elf2flt.ld b/elf2flt.ld index 0b5e3f3..7835687 100644 --- a/elf2flt.ld +++ b/elf2flt.ld @@ -2,60 +2,59 @@ ENTRY (_start) MEMORY { - flatmem : ORIGIN = 0x0, LENGTH = 0x100000 + flatmem : ORIGIN = 0x0, LENGTH = 0x100000 junk : ORIGIN = 0x0, LENGTH = 0x100000 } SECTIONS { - .text 0 : { + .text 0 : { . = . + 4; - . = ALIGN(0x4) ; - _stext = . ; - *(.text) - *(.text.*) - *(.gnu.warning) - *(.stub) - *(.gnu.linkonce.t*) - *(.glue_7t) + . = ALIGN(0x4) ; + _stext = . ; + *(.text) + *(.text.*) + *(.gnu.warning) + *(.stub) + *(.gnu.linkonce.t*) + *(.glue_7t) *(.glue_7) - *(.init) + *(.init) *(.fini) - /* This is special code area at the end of the normal - text section. It contains a small lookup table at - the start followed by the code pointed to by entries - in the lookup table. */ - . = ALIGN (4) ; - PROVIDE(__ctbp = .); - *(.call_table_data) - *(.call_table_text) + /* This is special code area at the end of the normal + text section. It contains a small lookup table at + the start followed by the code pointed to by entries + in the lookup table. */ + . = ALIGN (4) ; + PROVIDE(__ctbp = .); + *(.call_table_data) + *(.call_table_text) - . = ALIGN(0x10) ; - _etext = . ; - } > flatmem - .data : { - . = ALIGN(0x4) ; - _sdata = . ; + . = ALIGN(0x10) ; + _etext = . ; + } > flatmem + .data : { + . = ALIGN(0x4) ; + _sdata = . ; __data_start = . ; data_start = . ; *(.got.plt) *(.got) LONG(-1) - *(.rodata) - *(.rodata1) - *(.rodata.*) - *(.gnu.linkonce.r*) - *(.rodata1) - *(.data) - *(.data1) - *(.data.*) - *(.gnu.linkonce.d*) - *(.data1) - *(.eh_frame) - *(.gcc_except_table) - *(.sdata) - *(.sdata.*) - *(.gnu.linkonce.s.*) + *(.rodata) + *(.rodata1) + *(.rodata.*) + *(.gnu.linkonce.r*) + *(.data) + *(.data1) + *(.data.*) + *(.gnu.linkonce.d*) + *(.data1) + *(.eh_frame) + *(.gcc_except_table) + *(.sdata) + *(.sdata.*) + *(.gnu.linkonce.s.*) *(__libc_atexit) *(__libc_subinit) *(__libc_subfreeres) @@ -67,26 +66,26 @@ SECTIONS { *(.dtors.*) *(.dtors) LONG(0) - . = ALIGN(0x10) ; - _edata = . ; - } > flatmem - .bss : { - . = ALIGN(0x4) ; - _sbss = ALIGN(0x4) ; + . = ALIGN(0x10) ; + _edata = . ; + } > flatmem + .bss : { + . = ALIGN(0x4) ; + _sbss = ALIGN(0x4) ; __bss_start = . ; - *(.dynsbss) - *(.sbss) - *(.sbss.*) - *(.scommon) - *(.dynbss) - *(.bss) - *(.bss.*) - *(COMMON) - . = ALIGN(0x4) ; - _ebss = . ; + *(.dynsbss) + *(.sbss) + *(.sbss.*) + *(.scommon) + *(.dynbss) + *(.bss) + *(.bss.*) + *(COMMON) + . = ALIGN(0x4) ; + _ebss = . ; _end = . ; end = . ; - } > flatmem + } > flatmem .junk : { *(.rel*) diff --git a/elf2flt.movdat.ld b/elf2flt.movdat.ld new file mode 100644 index 0000000..6fbf8de --- /dev/null +++ b/elf2flt.movdat.ld @@ -0,0 +1,95 @@ + +ENTRY (_start) + +MEMORY { + flatmem : ORIGIN = 0x0, LENGTH = 0x100000 + junk : ORIGIN = 0x0, LENGTH = 0x100000 +} + +SECTIONS { + .text 0 : { + . = . + 4; + . = ALIGN(0x4) ; + _stext = . ; + *(.text) + *(.text.*) + *(.gnu.warning) + *(.stub) + *(.gnu.linkonce.t*) + *(.glue_7t) + *(.glue_7) + *(.init) + *(.fini) + + *(.rodata) + *(.rodata1) + *(.rodata.*) + + /* This is special code area at the end of the normal + text section. It contains a small lookup table at + the start followed by the code pointed to by entries + in the lookup table. */ + . = ALIGN (4) ; + PROVIDE(__ctbp = .); + *(.call_table_data) + *(.call_table_text) + + . = ALIGN(0x10) ; + _etext = . ; + } > flatmem + .data : { + . = ALIGN(0x4) ; + _sdata = . ; + __data_start = . ; + data_start = . ; + *(.got.plt) + *(.got) + LONG(-1) + *(.gnu.linkonce.r*) + *(.data) + *(.data1) + *(.data.*) + *(.gnu.linkonce.d*) + *(.data1) + *(.eh_frame) + *(.gcc_except_table) + *(.sdata) + *(.sdata.*) + *(.gnu.linkonce.s.*) + *(__libc_atexit) + *(__libc_subinit) + *(__libc_subfreeres) + *(.note.ABI-tag) + . = ALIGN(4) ; + *(.ctors.*) + *(.ctors) + LONG(0) + *(.dtors.*) + *(.dtors) + LONG(0) + . = ALIGN(0x10) ; + _edata = . ; + } > flatmem + .bss : { + . = ALIGN(0x4) ; + _sbss = ALIGN(0x4) ; + __bss_start = . ; + *(.dynsbss) + *(.sbss) + *(.sbss.*) + *(.scommon) + *(.dynbss) + *(.bss) + *(.bss.*) + *(COMMON) + . = ALIGN(0x4) ; + _ebss = . ; + _end = . ; + end = . ; + } > flatmem + + .junk : { + *(.rel*) + *(.rela*) + } > junk +} diff --git a/ld-elf2flt b/ld-elf2flt index a90caf7..b2e410e 100755 --- a/ld-elf2flt +++ b/ld-elf2flt @@ -30,6 +30,7 @@ then SDIRS= LDSCRIPT= FINAL="yes" + MOVDAT= while [ $# -ne 0 ] do @@ -38,6 +39,9 @@ then -elf2flt) ;; # we already know this -elf2flt*)FLTFLAGS="`expr \"$1\" : '-elf2flt=\(.*\)'` $FLTFLAGS";; + -move-rodata) + MOVDAT="y";; # Put rodata in ROM if possible + -o) shift; OFILE="$1";; # the final outfile -o*) OFILE="`expr \"$1\" : '-o\(.*\)'`";; @@ -65,6 +69,17 @@ then if [ "$FINAL" = "yes" ] then + if [ "$MOVDAT" ] + then + $LINKER -r -d -o $OFILE.elf2flt $ARG1 || exit $? + if [ "`m68k-elf-objdump -h $OFILE.elf2flt | \ + egrep -A1 '[.]rodata' | grep RELOC`" ] + then + echo "warning: .rodata section contains relocations" + else + [ -z "$LDSCRIPT" ] && LDSCRIPT="elf2flt.movdat.ld" + fi + fi [ -z "$LDSCRIPT" ] && LDSCRIPT="elf2flt.ld" $LINKER -r -d -o $OFILE.elf2flt $ARG1 || exit $? $LINKER $SDIRS -T $LDSCRIPT -Ur -o $OFILE.elf $OFILE.elf2flt || exit $? -- 2.39.5