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| author | Ian Lance Taylor <ian@airs.com> | 1994-07-22 20:55:45 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@airs.com> | 1994-07-22 20:55:45 +0000 |
| commit | 31ddb15694f91cf0277586a49656714d40c4b53f (patch) | |
| tree | 90aaa90ac3d8a35948cb692b386897c877d18904 /ld/scripttempl | |
| parent | 7c6da9cade1c47d725fac11ddc9aaf921f85c22d (diff) | |
| download | gdb-31ddb15694f91cf0277586a49656714d40c4b53f.zip gdb-31ddb15694f91cf0277586a49656714d40c4b53f.tar.gz gdb-31ddb15694f91cf0277586a49656714d40c4b53f.tar.bz2 | |
* scripttempl/elf.sc: Use PROVIDE to define etext, edata, and end.
Add a new script operator, PROVIDE, to define a symbol only if it
is needed.
* ldgram.y (PROVIDE): New token.
(assignment): Accept PROVIDE.
* ldlex.l (PROVIDE): New token.
* ldexp.h (node_type): Add etree_provide to node_class enum.
(exp_provide): Declare.
* ldexp.c (exp_fold_tree): Handle etree_provide.
(exp_provide): New function.
(exp_print_tree): Handle etree_provide.
* ld.texinfo: Document PROVIDE.
Diffstat (limited to 'ld/scripttempl')
| -rw-r--r-- | ld/scripttempl/elf.sc | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/ld/scripttempl/elf.sc b/ld/scripttempl/elf.sc index 49c3ed4..29fa991 100644 --- a/ld/scripttempl/elf.sc +++ b/ld/scripttempl/elf.sc @@ -6,6 +6,7 @@ # (e.g., .PARISC.milli) # OTHER_READWRITE_SECTIONS - other than .data .bss .sdata ... # (e.g., .PARISC.global) +# OTHER_SECTIONS - at the end # EXECUTABLE_SYMBOLS - symbols that must be defined for an # executable (e.g., _DYNAMIC_LINK) # TEXT_START_SYMBOLS - symbols that appear at the start of the @@ -19,6 +20,7 @@ # When adding sections, do note that the names of some sections are used # when specifying the start address of the next. # +INTERP=".interp ${RELOCATING-0} : { *(.interp) }" PLT=".plt ${RELOCATING-0} : { *(.plt) }" cat <<EOF OUTPUT_FORMAT("${OUTPUT_FORMAT}") @@ -35,8 +37,9 @@ ${RELOCATING- /* For some reason, the Solaris linker makes bad executables SECTIONS { /* Read-only sections, merged into text segment: */ - ${RELOCATING+. = ${TEXT_START_ADDR} + SIZEOF_HEADERS;} - .interp ${RELOCATING-0} : { *(.interp) } + ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_START_ADDR} + SIZEOF_HEADERS;}} + ${CREATE_SHLIB+${RELOCATING+. = SIZEOF_HEADERS;}} + ${CREATE_SHLIB-${INTERP}} .hash ${RELOCATING-0} : { *(.hash) } .dynsym ${RELOCATING-0} : { *(.dynsym) } .dynstr ${RELOCATING-0} : { *(.dynstr) } @@ -52,6 +55,7 @@ SECTIONS *(.text) } ${RELOCATING+_etext = .;} + ${RELOCATING+PROVIDE (etext = .);} .fini ${RELOCATING-0} : { *(.fini) } =${NOP-0} .ctors ${RELOCATING-0} : { *(.ctors) } .dtors ${RELOCATING-0} : { *(.dtors) } @@ -77,6 +81,7 @@ SECTIONS we can shorten the on-disk segment size. */ .sdata ${RELOCATING-0} : { *(.sdata) } ${RELOCATING+_edata = .;} + ${RELOCATING+PROVIDE (edata = .);} ${RELOCATING+__bss_start = .;} ${RELOCATING+${OTHER_BSS_SYMBOLS}} .sbss ${RELOCATING-0} : { *(.sbss) *(.scommon) } @@ -87,6 +92,14 @@ SECTIONS *(COMMON) } ${RELOCATING+_end = . ;} - ${RELOCATING+end = . ;} + ${RELOCATING+PROVIDE (end = .);} + + /* These are needed for ELF backends which have not yet been + converted to the new style linker. */ + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + + /* These must appear regardless of ${RELOCATING}. */ + ${OTHER_SECTIONS} } EOF |