mirror of
https://github.com/bminor/binutils-gdb.git
synced 2025-12-06 07:33:08 +00:00
Add --rosegment option to BFD linker to stop the '-z separate-code' from generating two read-only segments.
PR 30907
This commit is contained in:
Nick Clifton
@@ -5335,7 +5335,9 @@ _bfd_elf_map_sections_to_segments (bfd *abfd,
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thus not executable, and the first section is
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executable then put the file and program headers in
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their own PT_LOAD. */
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separate_phdr = true;
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if (!info->one_rosegment)
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separate_phdr = true;
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if ((((phdr_lma + phdr_size - 1) & addr_mask & -maxpagesize)
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== (sections[0]->lma & addr_mask & -maxpagesize)))
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{
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@@ -423,6 +423,9 @@ struct bfd_link_info
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/* TRUE if separate code segment should be created. */
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unsigned int separate_code: 1;
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/* TRUE if only one read-only, non-code segment should be created. */
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unsigned int one_rosegment: 1;
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/* Nonzero if .eh_frame_hdr section and PT_GNU_EH_FRAME ELF segment
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should be created. 1 for DWARF2 tables, 2 for compact tables. */
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unsigned int eh_frame_hdr_type: 2;
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4
ld/NEWS
4
ld/NEWS
@@ -1,5 +1,9 @@
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-*- text -*-
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* Add --rosegment option which changes the -z separate-code option so that
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only one read-only segment is created (instead of two). (The option name
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is misleading, but it matches the name used by LLD and GOLD).
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* Add --section-ordering-file <FILE> option to add extra mapping of input
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sections to output sections.
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@@ -49,6 +49,10 @@
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default. */
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#undef DEFAULT_LD_Z_MARK_PLT
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/* Define to 1 if you want to enable --rosegment in the ELF linker by
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default. */
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#undef DEFAULT_LD_ROSEGMENT
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/* Define to 1 if you want to enable -z relro in ELF linker by default. */
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#undef DEFAULT_LD_Z_RELRO
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22
ld/configure
vendored
22
ld/configure
vendored
@@ -852,6 +852,7 @@ enable_new_dtags
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enable_relro
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enable_textrel_check
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enable_separate_code
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enable_rosegment
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enable_mark_plt
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enable_warn_execstack
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enable_error_execstack
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@@ -1547,6 +1548,7 @@ Optional Features:
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--enable-textrel-check=[yes|no|warning|error]
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enable DT_TEXTREL check in ELF linker
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--enable-separate-code enable -z separate-code in ELF linker by default
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--enable-rosegment enable --rosegment in the ELF linker by default
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--enable-mark-plt enable -z mark-plt in ELF x86-64 linker by default
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--enable-warn-execstack enable warnings when creating an executable stack
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--enable-error-execstack
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@@ -15682,6 +15684,17 @@ esac
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fi
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# Decide if --rosegment should be enabled in the ELF linker by default.
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ac_default_ld_rosegment=unset
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# Check whether --enable-rosegment was given.
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if test "${enable_rosegment+set}" = set; then :
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enableval=$enable_rosegment; case "${enableval}" in
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yes) ac_default_ld_rosegment=1 ;;
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no) ac_default_ld_rosegment=0 ;;
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esac
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fi
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# Decide if -z mark-plt should be enabled in ELF x86-64 linker by default.
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ac_default_ld_z_mark_plt=unset
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# Check whether --enable-mark-plt was given.
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@@ -19381,6 +19394,15 @@ cat >>confdefs.h <<_ACEOF
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_ACEOF
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if test "${ac_default_ld_rosegment}" = unset; then
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ac_default_ld_rosegment=0
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fi
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cat >>confdefs.h <<_ACEOF
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#define DEFAULT_LD_ROSEGMENT $ac_default_ld_rosegment
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_ACEOF
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if test "${ac_default_ld_z_mark_plt}" = unset; then
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ac_default_ld_z_mark_plt=0
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fi
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@@ -212,6 +212,16 @@ AC_ARG_ENABLE(separate-code,
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no) ac_default_ld_z_separate_code=0 ;;
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esac])
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# Decide if --rosegment should be enabled in the ELF linker by default.
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ac_default_ld_rosegment=unset
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AC_ARG_ENABLE(rosegment,
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AS_HELP_STRING([--enable-rosegment],
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[enable --rosegment in the ELF linker by default]),
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[case "${enableval}" in
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yes) ac_default_ld_rosegment=1 ;;
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no) ac_default_ld_rosegment=0 ;;
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esac])
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# Decide if -z mark-plt should be enabled in ELF x86-64 linker by default.
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ac_default_ld_z_mark_plt=unset
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AC_ARG_ENABLE(mark-plt,
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@@ -571,6 +581,13 @@ AC_DEFINE_UNQUOTED(DEFAULT_LD_Z_SEPARATE_CODE,
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$ac_default_ld_z_separate_code,
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[Define to 1 if you want to enable -z separate-code in ELF linker by default.])
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if test "${ac_default_ld_rosegment}" = unset; then
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ac_default_ld_rosegment=0
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fi
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AC_DEFINE_UNQUOTED(DEFAULT_LD_ROSEGMENT,
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$ac_default_ld_rosegment,
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[Define to 1 if you want to enable --rosegment in the ELF linker by default.])
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if test "${ac_default_ld_z_mark_plt}" = unset; then
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ac_default_ld_z_mark_plt=0
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fi
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@@ -93,6 +93,7 @@ EOF
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fi
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fragment <<EOF
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link_info.separate_code = DEFAULT_LD_Z_SEPARATE_CODE;
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link_info.one_rosegment = DEFAULT_LD_ROSEGMENT;
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link_info.warn_execstack = DEFAULT_LD_WARN_EXECSTACK;
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link_info.no_warn_rwx_segments = ! DEFAULT_LD_WARN_RWX_SEGMENTS;
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link_info.default_execstack = DEFAULT_LD_EXECSTACK;
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@@ -212,151 +213,303 @@ fragment <<EOF
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return
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EOF
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sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
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echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
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echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
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if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
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echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
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echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
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fi
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if test -n "$GENERATE_PIE_SCRIPT" ; then
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if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
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echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
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echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
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echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
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echo ' && link_info.one_rosegment' >> e${EMULATION_NAME}.c
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echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xdwer >> e${EMULATION_NAME}.c
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echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
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echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
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echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
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echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xdwe >> e${EMULATION_NAME}.c
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echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
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echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
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echo ' && link_info.relro' >> e${EMULATION_NAME}.c
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echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xdw >> e${EMULATION_NAME}.c
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if test -n "$GENERATE_RELRO_SCRIPT" ; then
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echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
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echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
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echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
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echo ' && link_info.one_rosegment' >> e${EMULATION_NAME}.c
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echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xdceor >> e${EMULATION_NAME}.c
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echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
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echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
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echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
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echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xdceo >> e${EMULATION_NAME}.c
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fi
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echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
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echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
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echo ' && link_info.one_rosegment' >> e${EMULATION_NAME}.c
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echo ' && link_info.combreloc) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xdcer >> e${EMULATION_NAME}.c
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echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
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echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
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echo ' && link_info.combreloc) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xdce >> e${EMULATION_NAME}.c
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if test -n "$GENERATE_RELRO_SCRIPT" ; then
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echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
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echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
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echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xdco >> e${EMULATION_NAME}.c
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fi
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echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
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echo ' && link_info.combreloc) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c
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if test -n "$GENERATE_RELRO_SCRIPT" ; then
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echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
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echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
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echo ' && link_info.one_rosegment' >> e${EMULATION_NAME}.c
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echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xdeor >> e${EMULATION_NAME}.c
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echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
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echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
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echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xdeo >> e${EMULATION_NAME}.c
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fi
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fi
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echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
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echo ' && link_info.one_rosegment' >> e${EMULATION_NAME}.c
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echo ' && link_info.separate_code) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xder >> e${EMULATION_NAME}.c
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||||
echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
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echo ' && link_info.separate_code) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xde >> e${EMULATION_NAME}.c
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if test -n "$GENERATE_RELRO_SCRIPT" ; then
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echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
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echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xdo >> e${EMULATION_NAME}.c
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fi
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echo ' ; else if (bfd_link_pie (&link_info)) return' >> e${EMULATION_NAME}.c
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sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c
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fi
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if test -n "$GENERATE_SHLIB_SCRIPT" ; then
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if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
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|
||||
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
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||||
echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.one_rosegment' >> e${EMULATION_NAME}.c
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echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
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||||
sed $sc ldscripts/${EMULATION_NAME}.xswer >> e${EMULATION_NAME}.c
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||||
|
||||
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
|
||||
echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xswe >> e${EMULATION_NAME}.c
|
||||
|
||||
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.relro' >> e${EMULATION_NAME}.c
|
||||
echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xsw >> e${EMULATION_NAME}.c
|
||||
|
||||
if test -n "$GENERATE_RELRO_SCRIPT" ; then
|
||||
|
||||
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.one_rosegment' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xsceor >> e${EMULATION_NAME}.c
|
||||
|
||||
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xsceo >> e${EMULATION_NAME}.c
|
||||
|
||||
fi
|
||||
|
||||
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.one_rosegment' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.separate_code) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xscer >> e${EMULATION_NAME}.c
|
||||
|
||||
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.separate_code) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xsce >> e${EMULATION_NAME}.c
|
||||
|
||||
if test -n "$GENERATE_RELRO_SCRIPT" ; then
|
||||
|
||||
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xsco >> e${EMULATION_NAME}.c
|
||||
|
||||
fi
|
||||
|
||||
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.combreloc) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
|
||||
|
||||
if test -n "$GENERATE_RELRO_SCRIPT" ; then
|
||||
|
||||
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.one_rosegment' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xseor >> e${EMULATION_NAME}.c
|
||||
|
||||
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xseo >> e${EMULATION_NAME}.c
|
||||
|
||||
fi
|
||||
|
||||
fi
|
||||
|
||||
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.one_rosegment' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.separate_code) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xser >> e${EMULATION_NAME}.c
|
||||
|
||||
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.separate_code) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xse >> e${EMULATION_NAME}.c
|
||||
|
||||
if test -n "$GENERATE_RELRO_SCRIPT" ; then
|
||||
|
||||
echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xso >> e${EMULATION_NAME}.c
|
||||
|
||||
fi
|
||||
|
||||
echo ' ; else if (bfd_link_dll (&link_info)) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
|
||||
|
||||
fi
|
||||
|
||||
if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
|
||||
|
||||
echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
|
||||
echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xwe >> e${EMULATION_NAME}.c
|
||||
|
||||
echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.one_rosegment' >> e${EMULATION_NAME}.c
|
||||
echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xwer >> e${EMULATION_NAME}.c
|
||||
|
||||
echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.relro' >> e${EMULATION_NAME}.c
|
||||
echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xw >> e${EMULATION_NAME}.c
|
||||
|
||||
if test -n "$GENERATE_RELRO_SCRIPT" ; then
|
||||
|
||||
echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.one_rosegment' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xceor >> e${EMULATION_NAME}.c
|
||||
|
||||
echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xceo >> e${EMULATION_NAME}.c
|
||||
|
||||
fi
|
||||
|
||||
echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.one_rosegment' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.separate_code) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xcer >> e${EMULATION_NAME}.c
|
||||
|
||||
echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.separate_code) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xce >> e${EMULATION_NAME}.c
|
||||
|
||||
if test -n "$GENERATE_RELRO_SCRIPT" ; then
|
||||
|
||||
echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xco >> e${EMULATION_NAME}.c
|
||||
|
||||
fi
|
||||
|
||||
echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
|
||||
|
||||
fi
|
||||
|
||||
if test -n "$GENERATE_RELRO_SCRIPT" ; then
|
||||
|
||||
echo ' ; else if (link_info.separate_code' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.one_rosegment' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xeor >> e${EMULATION_NAME}.c
|
||||
|
||||
echo ' ; else if (link_info.separate_code' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xeo >> e${EMULATION_NAME}.c
|
||||
|
||||
fi
|
||||
|
||||
echo ' ; else if (link_info.separate_code' >> e${EMULATION_NAME}.c
|
||||
echo ' && link_info.one_rosegment) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xer >> e${EMULATION_NAME}.c
|
||||
|
||||
echo ' ; else if (link_info.separate_code) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xe >> e${EMULATION_NAME}.c
|
||||
|
||||
if test -n "$GENERATE_RELRO_SCRIPT" ; then
|
||||
|
||||
echo ' ; else if (link_info.relro) return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.xo >> e${EMULATION_NAME}.c
|
||||
|
||||
fi
|
||||
|
||||
echo ' ; else return' >> e${EMULATION_NAME}.c
|
||||
sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
|
||||
echo '; }' >> e${EMULATION_NAME}.c
|
||||
@@ -391,7 +544,12 @@ fragment <<EOF
|
||||
&& (link_info.flags & DF_BIND_NOW))
|
||||
{
|
||||
if (link_info.separate_code)
|
||||
return "ldscripts/${EMULATION_NAME}.xdwe";
|
||||
{
|
||||
if (link_info.one_rosegment)
|
||||
return "ldscripts/${EMULATION_NAME}.xdwer";
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xdwe";
|
||||
}
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xdw";
|
||||
}
|
||||
@@ -403,7 +561,12 @@ fragment <<EOF
|
||||
&& link_info.relro)
|
||||
{
|
||||
if (link_info.separate_code)
|
||||
return "ldscripts/${EMULATION_NAME}.xdceo";
|
||||
{
|
||||
if (link_info.one_rosegment)
|
||||
return "ldscripts/${EMULATION_NAME}.xdceor";
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xdceo";
|
||||
}
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xdco";
|
||||
}
|
||||
@@ -414,7 +577,12 @@ fragment <<EOF
|
||||
&& link_info.combreloc)
|
||||
{
|
||||
if (link_info.separate_code)
|
||||
return "ldscripts/${EMULATION_NAME}.xdce";
|
||||
{
|
||||
if (link_info.one_rosegment)
|
||||
return "ldscripts/${EMULATION_NAME}.xdcer";
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xdce";
|
||||
}
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xdc";
|
||||
}
|
||||
@@ -426,7 +594,12 @@ fragment <<EOF
|
||||
&& link_info.relro)
|
||||
{
|
||||
if (link_info.separate_code)
|
||||
return "ldscripts/${EMULATION_NAME}.xdeo";
|
||||
{
|
||||
if (link_info.one_rosegment)
|
||||
return "ldscripts/${EMULATION_NAME}.xdeor";
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xdeo";
|
||||
}
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xdo";
|
||||
}
|
||||
@@ -436,7 +609,12 @@ fragment <<EOF
|
||||
else if (bfd_link_pie (&link_info))
|
||||
{
|
||||
if (link_info.separate_code)
|
||||
return "ldscripts/${EMULATION_NAME}.xde";
|
||||
{
|
||||
if (link_info.one_rosegment)
|
||||
return "ldscripts/${EMULATION_NAME}.xder";
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xde";
|
||||
}
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xd";
|
||||
}
|
||||
@@ -449,7 +627,12 @@ fragment <<EOF
|
||||
&& link_info.relro && (link_info.flags & DF_BIND_NOW))
|
||||
{
|
||||
if (link_info.separate_code)
|
||||
return "ldscripts/${EMULATION_NAME}.xswe";
|
||||
{
|
||||
if (link_info.one_rosegment)
|
||||
return "ldscripts/${EMULATION_NAME}.xswer";
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xswe";
|
||||
}
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xsw";
|
||||
}
|
||||
@@ -461,7 +644,12 @@ fragment <<EOF
|
||||
&& link_info.relro)
|
||||
{
|
||||
if (link_info.separate_code)
|
||||
return "ldscripts/${EMULATION_NAME}.xsceo";
|
||||
{
|
||||
if (link_info.one_rosegment)
|
||||
return "ldscripts/${EMULATION_NAME}.xsceor";
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xsceo";
|
||||
}
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xsco";
|
||||
}
|
||||
@@ -471,7 +659,12 @@ fragment <<EOF
|
||||
else if (bfd_link_dll (&link_info) && link_info.combreloc)
|
||||
{
|
||||
if (link_info.separate_code)
|
||||
return "ldscripts/${EMULATION_NAME}.xsce";
|
||||
{
|
||||
if (link_info.one_rosegment)
|
||||
return "ldscripts/${EMULATION_NAME}.xscer";
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xsce";
|
||||
}
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xsc";
|
||||
}
|
||||
@@ -483,7 +676,12 @@ fragment <<EOF
|
||||
&& link_info.relro)
|
||||
{
|
||||
if (link_info.separate_code)
|
||||
return "ldscripts/${EMULATION_NAME}.xseo";
|
||||
{
|
||||
if (link_info.one_rosegment)
|
||||
return "ldscripts/${EMULATION_NAME}.xseor";
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xseo";
|
||||
}
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xso";
|
||||
}
|
||||
@@ -493,7 +691,12 @@ fragment <<EOF
|
||||
else if (bfd_link_dll (&link_info))
|
||||
{
|
||||
if (link_info.separate_code)
|
||||
return "ldscripts/${EMULATION_NAME}.xse";
|
||||
{
|
||||
if (link_info.one_rosegment)
|
||||
return "ldscripts/${EMULATION_NAME}.xser";
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xse";
|
||||
}
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xs";
|
||||
}
|
||||
@@ -505,7 +708,12 @@ fragment <<EOF
|
||||
&& (link_info.flags & DF_BIND_NOW))
|
||||
{
|
||||
if (link_info.separate_code)
|
||||
return "ldscripts/${EMULATION_NAME}.xwe";
|
||||
{
|
||||
if (link_info.one_rosegment)
|
||||
return "ldscripts/${EMULATION_NAME}.xwer";
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xwe";
|
||||
}
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xw";
|
||||
}
|
||||
@@ -516,7 +724,12 @@ fragment <<EOF
|
||||
&& link_info.relro)
|
||||
{
|
||||
if (link_info.separate_code)
|
||||
return "ldscripts/${EMULATION_NAME}.xceo";
|
||||
{
|
||||
if (link_info.one_rosegment)
|
||||
return "ldscripts/${EMULATION_NAME}.xceor";
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xceo";
|
||||
}
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xco";
|
||||
}
|
||||
@@ -526,7 +739,12 @@ fragment <<EOF
|
||||
else if (link_info.combreloc)
|
||||
{
|
||||
if (link_info.separate_code)
|
||||
return "ldscripts/${EMULATION_NAME}.xce";
|
||||
{
|
||||
if (link_info.one_rosegment)
|
||||
return "ldscripts/${EMULATION_NAME}.xcer";
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xce";
|
||||
}
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xc";
|
||||
}
|
||||
@@ -537,7 +755,12 @@ fragment <<EOF
|
||||
else if (link_info.relro)
|
||||
{
|
||||
if (link_info.separate_code)
|
||||
return "ldscripts/${EMULATION_NAME}.xeo";
|
||||
{
|
||||
if (link_info.one_rosegment)
|
||||
return "ldscripts/${EMULATION_NAME}.xeor";
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xeo";
|
||||
}
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xo";
|
||||
}
|
||||
@@ -547,7 +770,12 @@ fragment <<EOF
|
||||
else
|
||||
{
|
||||
if (link_info.separate_code)
|
||||
return "ldscripts/${EMULATION_NAME}.xe";
|
||||
{
|
||||
if (link_info.one_rosegment)
|
||||
return "ldscripts/${EMULATION_NAME}.xer";
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.xe";
|
||||
}
|
||||
else
|
||||
return "ldscripts/${EMULATION_NAME}.x";
|
||||
}
|
||||
@@ -587,6 +815,8 @@ fragment <<EOF
|
||||
{"build-id", optional_argument, NULL, OPTION_BUILD_ID},
|
||||
{"package-metadata", optional_argument, NULL, OPTION_PACKAGE_METADATA},
|
||||
{"compress-debug-sections", required_argument, NULL, OPTION_COMPRESS_DEBUG},
|
||||
{"rosegment", no_argument, NULL, OPTION_ROSEGMENT},
|
||||
{"no-rosegment", no_argument, NULL, OPTION_NO_ROSEGMENT},
|
||||
EOF
|
||||
if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
|
||||
fragment <<EOF
|
||||
@@ -655,6 +885,13 @@ gld${EMULATION_NAME}_handle_option (int optc)
|
||||
einfo (_("%F%P: invalid --compress-debug-sections option: \`%s'\n"),
|
||||
optarg);
|
||||
break;
|
||||
|
||||
case OPTION_ROSEGMENT:
|
||||
link_info.one_rosegment = true;
|
||||
break;
|
||||
case OPTION_NO_ROSEGMENT:
|
||||
link_info.one_rosegment = false;
|
||||
break;
|
||||
EOF
|
||||
|
||||
if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
|
||||
|
||||
186
ld/genscripts.sh
186
ld/genscripts.sh
@@ -64,35 +64,50 @@
|
||||
# following suffixes might be generated as well:
|
||||
#
|
||||
# xdwe: -pie -z combreloc -z separate-code -z relro -z now
|
||||
# xdwer: -pie -z combreloc -z separate-code -z relro -z now -z one-rosegment
|
||||
# xdw: -pie -z combreloc -z relro -z now
|
||||
# xdceo: -pie -z combreloc -z separate-code -z relro
|
||||
# xdceor: -pie -z combreloc -z separate-code -z relro -z one-rosegment
|
||||
# xdce: -pie -z combreloc -z separate-code
|
||||
# xdcer: -pie -z combreloc -z separate-code -z one-rosegment
|
||||
# xdco: -pie -z combreloc -z relro
|
||||
# xdc: -pie -z combreloc
|
||||
# xdeo: -pie -z separate-code -z relro
|
||||
# xdeor: -pie -z separate-code -z relro -z one-rosegment
|
||||
# xde: -pie -z separate-code
|
||||
# xder: -pie -z separate-code -z one-rosegment
|
||||
# xdo: -pie -z relro
|
||||
# xd: -pie
|
||||
#
|
||||
# xswe: -shared -z combreloc -z separate-code -z relro -z now
|
||||
# xswer: -shared -z combreloc -z separate-code -z relro -z now -z one-rosegment
|
||||
# xsw: -shared -z combreloc -z relro -z now
|
||||
# xsceo: -shared -z combreloc -z separate-code -z relro
|
||||
# xsceor: -shared -z combreloc -z separate-code -z relro -z one-rosegment
|
||||
# xsce: -shared -z combreloc -z separate-code
|
||||
# xscer: -shared -z combreloc -z separate-code -z one-rosegment
|
||||
# xsco: -shared -z combreloc -z relro
|
||||
# xsc: -shared -z combreloc
|
||||
# xseo: -shared -z separate-code -z relro
|
||||
# xseor: -shared -z separate-code -z relro -z one-rosegment
|
||||
# xse: -shared -z separate-code
|
||||
# xser: -shared -z separate-code -z one-rosegment
|
||||
# xso: -shared -z relro
|
||||
# xs: -shared
|
||||
#
|
||||
# xwe: -z combreloc -z separate-code -z relro -z now
|
||||
# xwe: -z combreloc -z separate-code -z relro -z now -z one-rosegment
|
||||
# xwer: -z combreloc -z separate-code -z relro -z now
|
||||
# xw: -z combreloc -z relro -z now
|
||||
# xceo: -z combreloc -z separate-code -z relro
|
||||
# xceor: -z combreloc -z separate-code -z relro -z one-rosegment
|
||||
# xce: -z combreloc -z separate-code
|
||||
# xcer: -z combreloc -z separate-code -z one-rosegment
|
||||
# xco: -z combreloc -z relro
|
||||
# xc: -z combreloc
|
||||
# xeo: -z separate-code -z relro
|
||||
# xeor: -z separate-code -z relro -z one-rosegment
|
||||
# xe: -z separate-code
|
||||
# xer: -z separate-code -z one-rosegment
|
||||
# xo: -z relro
|
||||
#
|
||||
#
|
||||
@@ -295,6 +310,8 @@ DATA_ALIGNMENT_N="${DATA_ALIGNMENT_N-${DATA_ALIGNMENT-.}}"
|
||||
DATA_ALIGNMENT_r="${DATA_ALIGNMENT_r-${DATA_ALIGNMENT-}}"
|
||||
DATA_ALIGNMENT_u="${DATA_ALIGNMENT_u-${DATA_ALIGNMENT_r}}"
|
||||
|
||||
# Create scripts using different settings of the LD_FLAG variable
|
||||
|
||||
LD_FLAG=r
|
||||
DATA_ALIGNMENT=${DATA_ALIGNMENT_r}
|
||||
DEFAULT_DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})"
|
||||
@@ -325,20 +342,36 @@ LD_FLAG=textonly
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xe
|
||||
|
||||
LD_FLAG=rotextonly
|
||||
( echo "/* Script for -z separate-code -z one-rosegment */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xer
|
||||
|
||||
if test -n "$GENERATE_RELRO_SCRIPT"; then
|
||||
LD_FLAG=
|
||||
RELRO=" "
|
||||
|
||||
LD_FLAG=
|
||||
( echo "/* Script for -z relro */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xo
|
||||
|
||||
LD_FLAG=textonly
|
||||
( echo "/* Script for -z separate-code -z relro */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xeo
|
||||
|
||||
LD_FLAG=rotextonly
|
||||
( echo "/* Script for -z separate-code -z relro -z one-rosegment */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xeor
|
||||
|
||||
unset RELRO
|
||||
fi
|
||||
|
||||
LD_FLAG=n
|
||||
DATA_ALIGNMENT=${DATA_ALIGNMENT_n}
|
||||
( echo "/* Script for -n */"
|
||||
@@ -362,6 +395,7 @@ if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xc
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
LD_FLAG=ctextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xce.tmp
|
||||
( echo "/* Script for -z combreloc -z separate-code */"
|
||||
@@ -369,7 +403,17 @@ if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xce
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
LD_FLAG=roctextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xcer.tmp
|
||||
( echo "/* Script for -z combreloc -z separate-code -z one-rosegment */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xcer
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
RELRO_NOW=" "
|
||||
|
||||
LD_FLAG=w
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xw.tmp
|
||||
( echo "/* Script for -z combreloc -z relro -z now */"
|
||||
@@ -377,6 +421,7 @@ if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xw
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
LD_FLAG=wtextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xwe.tmp
|
||||
( echo "/* Script for -z combreloc -z separate-code -z relro -z now */"
|
||||
@@ -385,16 +430,29 @@ if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xwe
|
||||
rm -f ${COMBRELOC}
|
||||
COMBRELOC=
|
||||
|
||||
LD_FLAG=rowtextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xwer.tmp
|
||||
( echo "/* Script for -z combreloc -z separate-code -z relro -z now -z one-rosegment */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xwer
|
||||
rm -f ${COMBRELOC}
|
||||
COMBRELOC=
|
||||
|
||||
unset RELRO_NOW
|
||||
|
||||
if test -n "$GENERATE_RELRO_SCRIPT"; then
|
||||
LD_FLAG=c
|
||||
RELRO=" "
|
||||
|
||||
LD_FLAG=c
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xco.tmp
|
||||
( echo "/* Script for -z combreloc -z relro */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xco
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
LD_FLAG=ctextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xceo.tmp
|
||||
( echo "/* Script for -z combreloc -z separate-code -z relro */"
|
||||
@@ -403,38 +461,66 @@ if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xceo
|
||||
rm -f ${COMBRELOC}
|
||||
COMBRELOC=
|
||||
|
||||
LD_FLAG=roctextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xceor.tmp
|
||||
( echo "/* Script for -z combreloc -z separate-code -z relro -z one-rosegment */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xceor
|
||||
rm -f ${COMBRELOC}
|
||||
COMBRELOC=
|
||||
|
||||
unset RELRO
|
||||
fi
|
||||
fi
|
||||
|
||||
if test -n "$GENERATE_SHLIB_SCRIPT"; then
|
||||
DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
|
||||
CREATE_SHLIB=" "
|
||||
DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
|
||||
|
||||
LD_FLAG=shared
|
||||
( echo "/* Script for -shared */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xs
|
||||
|
||||
LD_FLAG=sharedtextonly
|
||||
( echo "/* Script for -shared -z separate-code */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xse
|
||||
|
||||
LD_FLAG=rosharedtextonly
|
||||
( echo "/* Script for -shared -z separate-code -z one-rosegment */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xser
|
||||
|
||||
if test -n "$GENERATE_RELRO_SCRIPT"; then
|
||||
RELRO=" "
|
||||
|
||||
LD_FLAG=shared
|
||||
( echo "/* Script for -shared -z relro */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xso
|
||||
|
||||
LD_FLAG=sharedtextonly
|
||||
( echo "/* Script for -shared -z separate-code -z relro */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xseo
|
||||
|
||||
LD_FLAG=rosharedtextonly
|
||||
( echo "/* Script for -shared -z separate-code -z relro -z one-rosegment */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xseor
|
||||
|
||||
unset RELRO
|
||||
fi
|
||||
|
||||
if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
|
||||
DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
|
||||
LD_FLAG=cshared
|
||||
@@ -444,6 +530,7 @@ if test -n "$GENERATE_SHLIB_SCRIPT"; then
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xsc
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
LD_FLAG=csharedtextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xsce.tmp
|
||||
( echo "/* Script for -shared -z combreloc -z separate-code */"
|
||||
@@ -451,7 +538,17 @@ if test -n "$GENERATE_SHLIB_SCRIPT"; then
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xsce
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
LD_FLAG=rocsharedtextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xscer.tmp
|
||||
( echo "/* Script for -shared -z combreloc -z separate-code -z one-rosegment */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xscer
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
RELRO_NOW=" "
|
||||
|
||||
LD_FLAG=wshared
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xsw.tmp
|
||||
( echo "/* Script for -shared -z combreloc -z relro -z now */"
|
||||
@@ -459,6 +556,7 @@ if test -n "$GENERATE_SHLIB_SCRIPT"; then
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xsw
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
LD_FLAG=wsharedtextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xswe.tmp
|
||||
( echo "/* Script for -shared -z combreloc -z separate-code -z relro -z now */"
|
||||
@@ -466,17 +564,28 @@ if test -n "$GENERATE_SHLIB_SCRIPT"; then
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xswe
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
LD_FLAG=rowsharedtextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xswe.tmp
|
||||
( echo "/* Script for -shared -z combreloc -z separate-code -z relro -z now -z one-rosegment */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xswer
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
unset RELRO_NOW
|
||||
|
||||
if test -n "$GENERATE_RELRO_SCRIPT"; then
|
||||
LD_FLAG=wshared
|
||||
RELRO=" "
|
||||
|
||||
LD_FLAG=wshared
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xsco.tmp
|
||||
( echo "/* Script for -shared -z combreloc -z relro */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xsco
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
LD_FLAG=wsharedtextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xsceo.tmp
|
||||
( echo "/* Script for -shared -z combreloc -z separate-code -z relro */"
|
||||
@@ -484,40 +593,70 @@ if test -n "$GENERATE_SHLIB_SCRIPT"; then
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xsceo
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
LD_FLAG=rowsharedtextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xsceor.tmp
|
||||
( echo "/* Script for -shared -z combreloc -z separate-code -z relro -z one-rosegment */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xsceor
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
unset RELRO
|
||||
fi
|
||||
|
||||
COMBRELOC=
|
||||
fi
|
||||
|
||||
unset CREATE_SHLIB
|
||||
fi
|
||||
|
||||
if test -n "$GENERATE_PIE_SCRIPT"; then
|
||||
DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
|
||||
CREATE_PIE=" "
|
||||
|
||||
DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
|
||||
LD_FLAG=pie
|
||||
( echo "/* Script for -pie */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xd
|
||||
|
||||
LD_FLAG=pietextonly
|
||||
( echo "/* Script for -pie -z separate-code */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xde
|
||||
|
||||
LD_FLAG=ropietextonly
|
||||
( echo "/* Script for -pie -z separate-code -z one-rosegment */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xder
|
||||
|
||||
if test -n "$GENERATE_RELRO_SCRIPT"; then
|
||||
RELRO=" "
|
||||
|
||||
LD_FLAG=pie
|
||||
( echo "/* Script for -pie -z relro */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdo
|
||||
|
||||
LD_FLAG=pietextonly
|
||||
( echo "/* Script for -pie -z separate-code -z relro */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdeo
|
||||
|
||||
LD_FLAG=ropietextonly
|
||||
( echo "/* Script for -pie -z separate-code -z relro -z one-rosegment */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdeor
|
||||
|
||||
unset RELRO
|
||||
fi
|
||||
|
||||
if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
|
||||
DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xdc.tmp
|
||||
@@ -527,6 +666,7 @@ if test -n "$GENERATE_PIE_SCRIPT"; then
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdc
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
LD_FLAG=cpietextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xdce.tmp
|
||||
( echo "/* Script for -pie -z combreloc -z separate-code */"
|
||||
@@ -534,7 +674,17 @@ if test -n "$GENERATE_PIE_SCRIPT"; then
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdce
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
LD_FLAG=rocpietextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xdcer.tmp
|
||||
( echo "/* Script for -pie -z combreloc -z separate-code -z one-rosegment */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdcer
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
RELRO_NOW=" "
|
||||
|
||||
LD_FLAG=wpie
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xdw.tmp
|
||||
( echo "/* Script for -pie -z combreloc -z relro -z now */"
|
||||
@@ -542,6 +692,7 @@ if test -n "$GENERATE_PIE_SCRIPT"; then
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdw
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
LD_FLAG=wpietextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xdwe.tmp
|
||||
( echo "/* Script for -pie -z combreloc -z separate-code -z relro -z now */"
|
||||
@@ -549,17 +700,28 @@ if test -n "$GENERATE_PIE_SCRIPT"; then
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdwe
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
LD_FLAG=rowpietextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xdwer.tmp
|
||||
( echo "/* Script for -pie -z combreloc -z separate-code -z relro -z now -z one-rosegment */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdwer
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
unset RELRO_NOW
|
||||
|
||||
if test -n "$GENERATE_RELRO_SCRIPT"; then
|
||||
LD_FLAG=wpie
|
||||
RELRO=" "
|
||||
|
||||
LD_FLAG=wpie
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xdco.tmp
|
||||
( echo "/* Script for -pie -z combreloc -z relro */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdco
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
LD_FLAG=wpietextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xdceo.tmp
|
||||
( echo "/* Script for -pie -z combreloc -z separate-code -z relro */"
|
||||
@@ -568,10 +730,20 @@ if test -n "$GENERATE_PIE_SCRIPT"; then
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdceo
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
LD_FLAG=rowpietextonly
|
||||
COMBRELOC=ldscripts/${EMULATION_NAME}.xdceor.tmp
|
||||
( echo "/* Script for -pie -z combreloc -z separate-code -z relro -z one-rosegment */"
|
||||
source_sh ${CUSTOMIZER_SCRIPT}
|
||||
source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
|
||||
) | sed -e '/^ *$/d;s/[ ]*$//' > ldscripts/${EMULATION_NAME}.xdceor
|
||||
rm -f ${COMBRELOC}
|
||||
|
||||
unset RELRO
|
||||
fi
|
||||
|
||||
COMBRELOC=
|
||||
fi
|
||||
|
||||
unset CREATE_PIE
|
||||
fi
|
||||
|
||||
|
||||
15
ld/ld.texi
15
ld/ld.texi
@@ -1121,6 +1121,21 @@ For compatibility with other ELF linkers, if the @option{-R} option is
|
||||
followed by a directory name, rather than a file name, it is treated as
|
||||
the @option{-rpath} option.
|
||||
|
||||
@item --rosegment
|
||||
@itemx --no-rosegment
|
||||
Attempt to ensure that only a single read-only, non-code segment is
|
||||
created. Only useful when used in conjunction with the @option{-z
|
||||
separate-code} option. The resulting binaries should be smaller than
|
||||
if @option{-z separate-code} is used on its own. Without this option,
|
||||
or if @option{--no-rosegment} is specified, the @option{-z separate-code}
|
||||
option will create two read-only segments, one before the code segment
|
||||
and one after it.
|
||||
|
||||
The name of the options are misleading, but they have been chosen in
|
||||
order for the linker to be compatible with the LLD and GOLD linkers.
|
||||
|
||||
Thse options are only supported by ELF targets.
|
||||
|
||||
@kindex -s
|
||||
@kindex --strip-all
|
||||
@cindex strip all symbols
|
||||
|
||||
@@ -252,18 +252,23 @@ Here is the list of values assigned to @code{LD_FLAG}.
|
||||
@item (empty)
|
||||
The script generated is used by default (when none of the following
|
||||
cases apply). The output has an extension of @file{.x}.
|
||||
|
||||
@item n
|
||||
The script generated is used when the linker is invoked with the
|
||||
@code{-n} option. The output has an extension of @file{.xn}.
|
||||
|
||||
@item N
|
||||
The script generated is used when the linker is invoked with the
|
||||
@code{-N} option. The output has an extension of @file{.xbn}.
|
||||
|
||||
@item r
|
||||
The script generated is used when the linker is invoked with the
|
||||
@code{-r} option. The output has an extension of @file{.xr}.
|
||||
|
||||
@item u
|
||||
The script generated is used when the linker is invoked with the
|
||||
@code{-Ur} option. The output has an extension of @file{.xu}.
|
||||
|
||||
@item shared
|
||||
The @file{scripttempl} script is only invoked with @code{LD_FLAG} set to
|
||||
this value if @code{GENERATE_SHLIB_SCRIPT} is defined in the
|
||||
@@ -271,14 +276,15 @@ this value if @code{GENERATE_SHLIB_SCRIPT} is defined in the
|
||||
this script at the appropriate time, normally when the linker is invoked
|
||||
with the @code{-shared} option. The output has an extension of
|
||||
@file{.xs}.
|
||||
|
||||
@item c
|
||||
The @file{scripttempl} script is only invoked with @code{LD_FLAG} set to
|
||||
this value if @code{GENERATE_COMBRELOC_SCRIPT} is defined in the
|
||||
@file{emulparams} file or if @code{SCRIPT_NAME} is @code{elf}. The
|
||||
@file{emultempl} script must arrange to use this script at the appropriate
|
||||
time, normally when the linker is invoked with the @code{-z combreloc}
|
||||
option. The output has an extension of
|
||||
@file{.xc}.
|
||||
option. The output has an extension of @file{.xc}.
|
||||
|
||||
@item cshared
|
||||
The @file{scripttempl} script is only invoked with @code{LD_FLAG} set to
|
||||
this value if @code{GENERATE_COMBRELOC_SCRIPT} is defined in the
|
||||
@@ -287,6 +293,62 @@ this value if @code{GENERATE_COMBRELOC_SCRIPT} is defined in the
|
||||
The @file{emultempl} script must arrange to use this script at the
|
||||
appropriate time, normally when the linker is invoked with the @code{-shared
|
||||
-z combreloc} option. The output has an extension of @file{.xsc}.
|
||||
|
||||
@item wshared
|
||||
Like @emph{cshared} but in addition to needing the @option{-shared}
|
||||
and @option {-z combreloc} options, it also needs the
|
||||
@option{-z relro} option. If the @option{-z now} option is also used
|
||||
then the output has an extension of @file{.xsw}, otherwise it is
|
||||
@file{.xsco}.
|
||||
|
||||
@item pie
|
||||
The @file{scripttempl} script is only invoked with @code{LD_FLAG} set to
|
||||
this value if @code{GENERATE_PIE_SCRIPT} is defined in the
|
||||
@file{emulparams} file. The @file{emultempl} script must arrange to use
|
||||
this script at the appropriate time, normally when the linker is invoked
|
||||
with the @code{-pie} option. The output has an extension of
|
||||
@file{.xd}.
|
||||
|
||||
In addition if the @file{scripttempl} script is also invoked with
|
||||
@code{GENERATE_RELRO_SCRIPT} defined then a second script is created
|
||||
with an extension of @file{.xdo} to match the @option{-pie} and
|
||||
@option{-z relro} options.
|
||||
|
||||
@item cpie
|
||||
Like @code{pie} but this version is used when the @file{scripttempl}
|
||||
script is invoked with both @code{GENERATE_PIE_SCRIPT} and
|
||||
@code{GENERATE_COMBRELOC_SCRIPT} defined. The @file{emultempl} script
|
||||
must arrange to use this script at the appropriate time, normally when
|
||||
the linker is invoked with the @code{-pie} and @option{-z combreloc}
|
||||
options. The output has an extension of @file{.xdc}.
|
||||
|
||||
@item wpie
|
||||
Like @code{cpie}, but in addition the @option{-z relro} and
|
||||
@option{-z now} options need to be defined. The output has an
|
||||
extension of @file{.xdw}.
|
||||
|
||||
@item textonly
|
||||
@item pietextonly
|
||||
@item cpietextonly
|
||||
@item wpietextonly
|
||||
|
||||
@item ctextonly
|
||||
@item wtextonly
|
||||
@item sharedtextonly
|
||||
@item csharedtextonly
|
||||
@item wsharedtextonly
|
||||
|
||||
@item rotextonly
|
||||
@item roctextonly
|
||||
@item rowtextonly
|
||||
@item rosharedtextonly
|
||||
@item rocsharedtextonly
|
||||
@item rowsharedtextonly
|
||||
@item ropietextonly
|
||||
@item rocpietextonly
|
||||
@item rowpietextonly
|
||||
|
||||
|
||||
@item auto_import
|
||||
The @file{scripttempl} script is only invoked with @code{LD_FLAG} set to
|
||||
this value if @code{GENERATE_AUTO_IMPORT_SCRIPT} is defined in the
|
||||
@@ -294,8 +356,10 @@ this value if @code{GENERATE_AUTO_IMPORT_SCRIPT} is defined in the
|
||||
use this script at the appropriate time, normally when the linker is
|
||||
invoked with the @code{--enable-auto-import} option. The output has
|
||||
an extension of @file{.xa}.
|
||||
|
||||
@end table
|
||||
|
||||
|
||||
Besides the shell variables set by the @file{emulparams} script, and the
|
||||
@code{LD_FLAG} variable, the @file{genscripts.sh} script will set
|
||||
certain variables for each run of the @file{scripttempl} script.
|
||||
|
||||
@@ -287,6 +287,8 @@ enum option_values
|
||||
OPTION_PACKAGE_METADATA,
|
||||
OPTION_AUDIT,
|
||||
OPTION_COMPRESS_DEBUG,
|
||||
OPTION_ROSEGMENT,
|
||||
OPTION_NO_ROSEGMENT,
|
||||
/* Used by emultempl/hppaelf.em. */
|
||||
OPTION_MULTI_SUBSPACE,
|
||||
/* Used by emultempl/ia64elf.em. */
|
||||
|
||||
11
ld/lexsup.c
11
ld/lexsup.c
@@ -2233,6 +2233,17 @@ elf_shlib_list_options (FILE *file)
|
||||
-z separate-code Create separate code program header\n"));
|
||||
fprintf (file, _("\
|
||||
-z noseparate-code Don't create separate code program header (default)\n"));
|
||||
#endif
|
||||
#if DEFAULT_LD_ROSEGMENT
|
||||
fprintf (file, _("\
|
||||
--rosegment With -z separate-code, create a single read-only segment (default)\n"));
|
||||
fprintf (file, _("\
|
||||
--no-rosegment With -z separate-code, creste two read-only segments\n"));
|
||||
#else
|
||||
fprintf (file, _("\
|
||||
--rosegment With -z separate-code, create a single read-only segment\n"));
|
||||
fprintf (file, _("\
|
||||
--no-rosegment With -z separate-code, creste two read-only segments (default)\n"));
|
||||
#endif
|
||||
fprintf (file, _("\
|
||||
-z common Generate common symbols with STT_COMMON type\n"));
|
||||
|
||||
@@ -80,6 +80,8 @@
|
||||
# for standard sections, without initial "." or suffixes.
|
||||
# SYMBOL_ABI_ALIGNMENT - minimum alignment in bytes which needs to be
|
||||
# applied to every symbol definition
|
||||
# ALL_TEXT_BEFORE_RO - put all code sections before read-only
|
||||
# sections
|
||||
#
|
||||
# When adding sections, do note that the names of some sections are used
|
||||
# when specifying the start address of the next.
|
||||
@@ -367,6 +369,11 @@ SHLIB_TEXT_START_ADDR="SEGMENT_START(\"text-segment\", ${SHLIB_TEXT_START_ADDR:-
|
||||
# between .plt and .text.
|
||||
if test -z "$TINY_READONLY_SECTION"; then
|
||||
case "$LD_FLAG" in
|
||||
*ro*textonly*)
|
||||
ALL_TEXT_BEFORE_RO=" "
|
||||
SEPARATE_TEXT=" "
|
||||
TEXT_SEGMENT_ALIGN=
|
||||
;;
|
||||
*textonly*)
|
||||
SEPARATE_TEXT=" "
|
||||
TEXT_SEGMENT_ALIGN=". = ALIGN(${MAXPAGESIZE});"
|
||||
@@ -387,6 +394,11 @@ else
|
||||
test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}"
|
||||
fi
|
||||
|
||||
# ===========================================================================
|
||||
# Functions for generating parts of the linker script
|
||||
|
||||
emit_header()
|
||||
{
|
||||
cat <<EOF
|
||||
/* Copyright (C) 2014-2024 Free Software Foundation, Inc.
|
||||
|
||||
@@ -406,14 +418,8 @@ ${RELOCATING- /* For some reason, the Solaris linker makes bad executables
|
||||
if gld -r is used and the intermediate file has sections starting
|
||||
at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld
|
||||
bug. But for now assigning the zero vmas works. */}
|
||||
|
||||
SECTIONS
|
||||
{
|
||||
${RELOCATING+${SEPARATE_TEXT-/* Read-only sections, merged into text segment: */}}
|
||||
${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+PROVIDE (__executable_start = ${TEXT_START_ADDR}); . = ${TEXT_BASE_ADDRESS};}}}
|
||||
${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR}${SIZEOF_HEADERS_CODE};}}
|
||||
${CREATE_PIE+${RELOCATING+PROVIDE (__executable_start = ${SHLIB_TEXT_START_ADDR}); . = ${SHLIB_TEXT_START_ADDR}${SIZEOF_HEADERS_CODE};}}
|
||||
EOF
|
||||
}
|
||||
|
||||
emit_early_ro()
|
||||
{
|
||||
@@ -423,10 +429,21 @@ emit_early_ro()
|
||||
EOF
|
||||
}
|
||||
|
||||
test -n "${SEPARATE_CODE}" || emit_early_ro
|
||||
emit_executable_start()
|
||||
{
|
||||
cat <<EOF
|
||||
${RELOCATING+${SEPARATE_TEXT-/* Read-only sections, merged into text segment: */}}
|
||||
${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+PROVIDE (__executable_start = ${TEXT_START_ADDR}); . = ${TEXT_BASE_ADDRESS};}}}
|
||||
${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR}${SIZEOF_HEADERS_CODE};}}
|
||||
${CREATE_PIE+${RELOCATING+PROVIDE (__executable_start = ${SHLIB_TEXT_START_ADDR}); . = ${SHLIB_TEXT_START_ADDR}${SIZEOF_HEADERS_CODE};}}
|
||||
EOF
|
||||
}
|
||||
|
||||
emit_dyn()
|
||||
{
|
||||
test -n "${RELOCATING+0}" || unset NON_ALLOC_DYN
|
||||
test -z "${NON_ALLOC_DYN}" || TEXT_DYNAMIC=
|
||||
|
||||
cat > ldscripts/dyntmp.$$ <<EOF
|
||||
${TEXT_DYNAMIC+${DYNAMIC}}
|
||||
.hash ${RELOCATING-0} : { *(.hash) }
|
||||
@@ -443,6 +460,7 @@ if [ "x$COMBRELOC" = x ]; then
|
||||
else
|
||||
COMBRELOCCAT="cat > $COMBRELOC"
|
||||
fi
|
||||
|
||||
eval $COMBRELOCCAT <<EOF
|
||||
${INITIAL_RELOC_SECTIONS}
|
||||
.rel.init ${RELOCATING-0} : { *(.rel.init) }
|
||||
@@ -518,8 +536,6 @@ cat >> ldscripts/dyntmp.$$ <<EOF
|
||||
${OTHER_PLT_RELOC_SECTIONS}
|
||||
EOF
|
||||
|
||||
emit_dyn()
|
||||
{
|
||||
if test -z "${NO_REL_RELOCS}${NO_RELA_RELOCS}"; then
|
||||
cat ldscripts/dyntmp.$$
|
||||
else
|
||||
@@ -530,17 +546,24 @@ emit_dyn()
|
||||
sed -e '/^[ ]*\.rel\.[^}]*$/,/}/d;/^[ ]*\.rel\./d;/__rel_iplt_/d' ldscripts/dyntmp.$$
|
||||
fi
|
||||
fi
|
||||
|
||||
rm -f ldscripts/dyntmp.$$
|
||||
|
||||
if test -n "${HAVE_DT_RELR}"; then
|
||||
echo " .relr.dyn : { *(.relr.dyn) }"
|
||||
fi
|
||||
}
|
||||
|
||||
test -n "${NON_ALLOC_DYN}${SEPARATE_CODE}" || emit_dyn
|
||||
|
||||
align_text()
|
||||
{
|
||||
cat <<EOF
|
||||
${RELOCATING+${TEXT_SEGMENT_ALIGN}}
|
||||
EOF
|
||||
}
|
||||
|
||||
emit_text()
|
||||
{
|
||||
cat <<EOF
|
||||
.init ${RELOCATING-0}${RELOCATING+${INIT_ADDR}} :
|
||||
{
|
||||
${RELOCATING+${INIT_START}}
|
||||
@@ -549,7 +572,9 @@ cat <<EOF
|
||||
} ${FILL}
|
||||
|
||||
${TEXT_PLT+${PLT_NEXT_DATA-${PLT} ${OTHER_PLT_SECTIONS}}}
|
||||
|
||||
${TINY_READONLY_SECTION}
|
||||
|
||||
.text ${RELOCATING-0} :
|
||||
{
|
||||
${RELOCATING+${TEXT_START_SYMBOLS}}
|
||||
@@ -563,19 +588,25 @@ cat <<EOF
|
||||
*(.gnu.warning)
|
||||
${RELOCATING+${OTHER_TEXT_SECTIONS}}
|
||||
} ${FILL}
|
||||
|
||||
.fini ${RELOCATING-0}${RELOCATING+${FINI_ADDR}} :
|
||||
{
|
||||
${RELOCATING+${FINI_START}}
|
||||
KEEP (*(SORT_NONE(.fini)))
|
||||
${RELOCATING+${FINI_END}}
|
||||
} ${FILL}
|
||||
|
||||
${RELOCATING+${ETEXT_LAST_IN_RODATA_SEGMENT-PROVIDE (__${ETEXT_NAME} = .);}}
|
||||
${RELOCATING+${ETEXT_LAST_IN_RODATA_SEGMENT-PROVIDE (_${ETEXT_NAME} = .);}}
|
||||
${RELOCATING+${ETEXT_LAST_IN_RODATA_SEGMENT-PROVIDE (${ETEXT_NAME} = .);}}
|
||||
${RELOCATING+${TEXT_SEGMENT_ALIGN}}
|
||||
EOF
|
||||
}
|
||||
|
||||
align_rodata()
|
||||
{
|
||||
if test -n "${SEPARATE_CODE}${SEPARATE_TEXT}"; then
|
||||
|
||||
if test -n "${RODATA_ADDR}"; then
|
||||
RODATA_ADDR="\
|
||||
SEGMENT_START(\"rodata-segment\", ${RODATA_ADDR}) + SIZEOF_HEADERS"
|
||||
@@ -583,6 +614,7 @@ SEGMENT_START(\"rodata-segment\", ${RODATA_ADDR}) + SIZEOF_HEADERS"
|
||||
RODATA_ADDR="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))"
|
||||
RODATA_ADDR="SEGMENT_START(\"rodata-segment\", ${RODATA_ADDR})"
|
||||
fi
|
||||
|
||||
if test -n "${SHLIB_RODATA_ADDR}"; then
|
||||
SHLIB_RODATA_ADDR="\
|
||||
SEGMENT_START(\"rodata-segment\", ${SHLIB_RODATA_ADDR}) + SIZEOF_HEADERS"
|
||||
@@ -590,6 +622,7 @@ SEGMENT_START(\"rodata-segment\", ${SHLIB_RODATA_ADDR}) + SIZEOF_HEADERS"
|
||||
SHLIB_RODATA_ADDR="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))"
|
||||
SHLIB_RODATA_ADDR="SEGMENT_START(\"rodata-segment\", ${SHLIB_RODATA_ADDR})"
|
||||
fi
|
||||
|
||||
cat <<EOF
|
||||
${RELOCATING+/* Adjust the address for the rodata segment. We want to adjust up to
|
||||
the same address within the page on the next page up. */
|
||||
@@ -597,12 +630,11 @@ SEGMENT_START(\"rodata-segment\", ${SHLIB_RODATA_ADDR}) + SIZEOF_HEADERS"
|
||||
${CREATE_SHLIB+. = ${SHLIB_RODATA_ADDR};}
|
||||
${CREATE_PIE+. = ${SHLIB_RODATA_ADDR};}}
|
||||
EOF
|
||||
if test -n "${SEPARATE_CODE}"; then
|
||||
emit_early_ro
|
||||
emit_dyn
|
||||
fi
|
||||
fi
|
||||
}
|
||||
|
||||
emit_rodata()
|
||||
{
|
||||
cat <<EOF
|
||||
${WRITABLE_RODATA-${RODATA}}
|
||||
.${RODATA_NAME}1 ${RELOCATING-0} : { *(.${RODATA_NAME}1) }
|
||||
@@ -621,7 +653,12 @@ cat <<EOF
|
||||
${RELOCATING+${ETEXT_LAST_IN_RODATA_SEGMENT+PROVIDE (__${ETEXT_NAME} = .);}}
|
||||
${RELOCATING+${ETEXT_LAST_IN_RODATA_SEGMENT+PROVIDE (_${ETEXT_NAME} = .);}}
|
||||
${RELOCATING+${ETEXT_LAST_IN_RODATA_SEGMENT+PROVIDE (${ETEXT_NAME} = .);}}
|
||||
EOF
|
||||
}
|
||||
|
||||
emit_data()
|
||||
{
|
||||
cat <<EOF
|
||||
${RELOCATING+/* Adjust the address for the data segment. We want to adjust up to
|
||||
the same address within the page on the next page up. */}
|
||||
${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+. = ${DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}}
|
||||
@@ -712,7 +749,10 @@ cat <<EOF
|
||||
${NOINIT}
|
||||
${RELOCATING+. = ALIGN(${ALIGNMENT});}
|
||||
EOF
|
||||
}
|
||||
|
||||
emit_large_data()
|
||||
{
|
||||
LARGE_DATA_ADDR=". = SEGMENT_START(\"ldata-segment\", ${LARGE_DATA_ADDR-.});"
|
||||
SHLIB_LARGE_DATA_ADDR=". = SEGMENT_START(\"ldata-segment\", ${SHLIB_LARGE_DATA_ADDR-.});"
|
||||
|
||||
@@ -730,9 +770,10 @@ cat <<EOF
|
||||
${TINY_BSS_SECTION}
|
||||
${STACK_ADDR+${STACK}}
|
||||
EOF
|
||||
}
|
||||
|
||||
test -z "${NON_ALLOC_DYN}" || emit_dyn
|
||||
|
||||
emit_misc()
|
||||
{
|
||||
source_sh $srcdir/scripttempl/misc-sections.sc
|
||||
source_sh $srcdir/scripttempl/DWARF.sc
|
||||
|
||||
@@ -741,5 +782,46 @@ cat <<EOF
|
||||
${OTHER_SECTIONS}
|
||||
${RELOCATING+${OTHER_SYMBOLS}}
|
||||
${RELOCATING+${DISCARDED}}
|
||||
EOF
|
||||
}
|
||||
|
||||
# ===========================================================================
|
||||
# The script:
|
||||
|
||||
emit_header
|
||||
|
||||
cat <<EOF
|
||||
SECTIONS
|
||||
{
|
||||
EOF
|
||||
|
||||
emit_executable_start
|
||||
|
||||
if test -z "${ALL_TEXT_BEFORE_RO}"; then
|
||||
test -n "${SEPARATE_CODE}" || emit_early_ro
|
||||
test -n "${NON_ALLOC_DYN}${SEPARATE_CODE}" || emit_dyn
|
||||
fi
|
||||
|
||||
align_text
|
||||
emit_text
|
||||
|
||||
align_rodata
|
||||
|
||||
if test -n "${ALL_TEXT_BEFORE_RO}"; then
|
||||
test -n "${SEPARATE_CODE}" || emit_early_ro
|
||||
test -n "${NON_ALLOC_DYN}${SEPARATE_CODE}" || emit_dyn
|
||||
fi
|
||||
|
||||
test -z "${SEPARATE_CODE}" || emit_early_ro
|
||||
test -z "${SEPARATE_CODE}" || emit_dyn
|
||||
emit_rodata
|
||||
|
||||
emit_data
|
||||
emit_large_data
|
||||
|
||||
test -z "${NON_ALLOC_DYN}" || emit_dyn
|
||||
emit_misc
|
||||
|
||||
cat <<EOF
|
||||
}
|
||||
EOF
|
||||
|
||||
14
ld/testsuite/ld-elf/pr30907-1.d
Normal file
14
ld/testsuite/ld-elf/pr30907-1.d
Normal file
@@ -0,0 +1,14 @@
|
||||
#name: --rosegment (pr30907-1) (does not have two read-only segments)
|
||||
#source: pr22393-1.s
|
||||
#ld: -shared -z separate-code -z relro --rosegment
|
||||
#readelf: -l --wide
|
||||
#target: *-*-linux-gnu *-*-gnu* *-*-nacl* arm*-*-uclinuxfdpiceabi
|
||||
#xfail: ![check_shared_lib_support]
|
||||
#xfail: ![check_relro_support]
|
||||
|
||||
#failif
|
||||
#...
|
||||
[ ]+LOAD[ ]+0x[0-9a-f x]+R[ ]+0x.*
|
||||
#...
|
||||
[ ]+LOAD[ ]+0x[0-9a-f x]+R[ ]+0x.*
|
||||
#...
|
||||
15
ld/testsuite/ld-elf/pr30907-2.d
Normal file
15
ld/testsuite/ld-elf/pr30907-2.d
Normal file
@@ -0,0 +1,15 @@
|
||||
#name: --rosegment (pr30907-2) (has at least one RX, one R and one RW segments)
|
||||
#source: pr22393-1.s
|
||||
#ld: -shared -z separate-code -z relro --rosegment
|
||||
#readelf: -l --wide
|
||||
#target: *-*-linux-gnu *-*-gnu* *-*-nacl* arm*-*-uclinuxfdpiceabi
|
||||
#xfail: ![check_shared_lib_support]
|
||||
#xfail: ![check_relro_support]
|
||||
|
||||
#...
|
||||
[ ]+LOAD[ ]+0x[0-9a-f x]+R E[ ]+0x.*
|
||||
#...
|
||||
[ ]+LOAD[ ]+0x[0-9a-f x]+R[ ]+0x.*
|
||||
#...
|
||||
[ ]+LOAD[ ]+0x[0-9a-f x]+RW[ ]+0x.*
|
||||
#...
|
||||
Reference in New Issue
Block a user