diff options
| author | Andrew Waterman <waterman@cs.berkeley.edu> | 2015-10-10 15:43:15 -0700 |
|---|---|---|
| committer | Andrew Waterman <waterman@cs.berkeley.edu> | 2015-10-10 15:43:58 -0700 |
| commit | 97951e32a38043c7f03db08178313a14b13dc5a1 (patch) | |
| tree | af22cb84e387723fa14a4b7d84a6442723af1091 /binutils | |
| parent | e05cc858aa5a6ed1ae0fec885a83090f81f355fe (diff) | |
| download | riscv-gnu-toolchain-97951e32a38043c7f03db08178313a14b13dc5a1.zip riscv-gnu-toolchain-97951e32a38043c7f03db08178313a14b13dc5a1.tar.gz riscv-gnu-toolchain-97951e32a38043c7f03db08178313a14b13dc5a1.tar.bz2 | |
binutils: for non-PIC, put data at 0x10000
This allows global variable references to be relaxed to C.LUI.
Diffstat (limited to 'binutils')
| -rw-r--r-- | binutils/ld/emulparams/elf32lriscv-defs.sh | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/binutils/ld/emulparams/elf32lriscv-defs.sh b/binutils/ld/emulparams/elf32lriscv-defs.sh index dd7abde..24163c9 100644 --- a/binutils/ld/emulparams/elf32lriscv-defs.sh +++ b/binutils/ld/emulparams/elf32lriscv-defs.sh @@ -24,16 +24,24 @@ fi GENERATE_SHLIB_SCRIPT=yes GENERATE_PIE_SCRIPT=yes -TEXT_START_ADDR=0x800000 +TEXT_START_ADDR=0x10000 MAXPAGESIZE="CONSTANT (MAXPAGESIZE)" COMMONPAGESIZE="CONSTANT (COMMONPAGESIZE)" -INITIAL_READONLY_SECTIONS=".interp ${RELOCATING-0} : { *(.interp) }" SDATA_START_SYMBOLS="_gp = . + 0x800; - *(.srodata.cst16) *(.srodata.cst8) *(.srodata.cst4) *(.srodata.cst2) *(.srodata*)" -if test -n "${CREATE_SHLIB}"; then - INITIAL_READONLY_SECTIONS= - SDATA_START_SYMBOLS= - OTHER_READONLY_SECTIONS=".srodata ${RELOCATING-0} : { *(.srodata.cst16) *(.srodata.cst8) *(.srodata.cst4) *(.srodata.cst2) *(.srodata*) }" - unset GOT -fi + *(.srodata.cst16) *(.srodata.cst8) *(.srodata.cst4) *(.srodata.cst2) *(.srodata .srodata.*)" + +# Place the data section before text section. This enables more compact +# global variable access for RVC code via linker relaxation. +INITIAL_READONLY_SECTIONS=" + .data : { *(.data) *(.data.*) *(.gnu.linkonce.d.*) } + .rodata : { *(.rodata) *(.rodata.*) *(.gnu.linkonce.r.*) } + .srodata : { ${SDATA_START_SYMBOLS} } + .sdata : { *(.sdata .sdata.* .gnu.linkonce.s.*) } + .sbss : { *(.dynsbss) *(.sbss .sbss.* .gnu.linkonce.sb.*) } + .bss : { *(.dynbss) *(.bss .bss.* .gnu.linkonce.b.*) *(COMMON) } + . = ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1));" +INITIAL_READONLY_SECTIONS=".interp : { *(.interp) } ${CREATE_PIE-${INITIAL_READONLY_SECTIONS}}" +INITIAL_READONLY_SECTIONS="${RELOCATING+${CREATE_SHLIB-${INITIAL_READONLY_SECTIONS}}}" + +SDATA_START_SYMBOLS="${CREATE_PIE+${SDATA_START_SYMBOLS}}" |