This is the mail archive of the
binutils@sourceware.org
mailing list for the binutils project.
Re: [PATCH] Large section data, was: [PATCH] Updated RDOS support
Adjusted and applied as follows. You don't want to add SIZEOF_HEADERS
to LARGE_DATA_ADDR. That's a special case for -Trodata-segment where
the file headers are put in the rodata segment. (We really ought to
have support in the script for the non-SEPARATE_CODE case.)
* ld.texinfo (-Tldata-segment): Describe.
* ldlex.h (OPTION_TLDATA_SEGMENT): New enum value.
* lexsup.c (ld_options): Add -Tldata-segment.
(parse_args): Handle OPTION_TLDATA_SEGMENT.
* scripttempl/elf.sc: Support LARGE_DATA_ADDR.
Index: ld/ld.texinfo
===================================================================
RCS file: /cvs/src/src/ld/ld.texinfo,v
retrieving revision 1.290
diff -u -p -r1.290 ld.texinfo
--- ld/ld.texinfo 7 Jan 2013 12:11:11 -0000 1.290
+++ ld/ld.texinfo 14 Jan 2013 06:22:10 -0000
@@ -1846,6 +1846,12 @@ When creating an ELF executable or share
the read-only data is in its own segment separate from the executable
text, it will set the address of the first byte of the read-only data segment.
+@kindex -Tldata-segment=@var{org}
+@item -Tldata-segment=@var{org}
+@cindex ldata segment origin, cmd line
+When creating an ELF executable or shared object for x86-64 medium memory
+model, it will set the address of the first byte of the ldata segment.
+
@kindex --unresolved-symbols
@item --unresolved-symbols=@var{method}
Determine how to handle unresolved symbols. There are four possible
Index: ld/ldlex.h
===================================================================
RCS file: /cvs/src/src/ld/ldlex.h,v
retrieving revision 1.13
diff -u -p -r1.13 ldlex.h
--- ld/ldlex.h 18 Dec 2012 20:42:43 -0000 1.13
+++ ld/ldlex.h 14 Jan 2013 06:22:10 -0000
@@ -69,6 +69,7 @@ enum option_values
OPTION_TTEXT,
OPTION_TTEXT_SEGMENT,
OPTION_TRODATA_SEGMENT,
+ OPTION_TLDATA_SEGMENT,
OPTION_TRADITIONAL_FORMAT,
OPTION_UR,
OPTION_VERBOSE,
Index: ld/lexsup.c
===================================================================
RCS file: /cvs/src/src/ld/lexsup.c,v
retrieving revision 1.137
diff -u -p -r1.137 lexsup.c
--- ld/lexsup.c 7 Jan 2013 16:58:59 -0000 1.137
+++ ld/lexsup.c 14 Jan 2013 06:22:11 -0000
@@ -446,6 +446,8 @@ static const struct ld_option ld_options
'\0', N_("ADDRESS"), N_("Set address of text segment"), ONE_DASH },
{ {"Trodata-segment", required_argument, NULL, OPTION_TRODATA_SEGMENT},
'\0', N_("ADDRESS"), N_("Set address of rodata segment"), ONE_DASH },
+ { {"Tldata-segment", required_argument, NULL, OPTION_TLDATA_SEGMENT},
+ '\0', N_("ADDRESS"), N_("Set address of ldata segment"), ONE_DASH },
{ {"unresolved-symbols=<method>", required_argument, NULL,
OPTION_UNRESOLVED_SYMBOLS},
'\0', NULL, N_("How to handle unresolved symbols. <method> is:\n"
@@ -1199,6 +1201,9 @@ parse_args (unsigned argc, char **argv)
case OPTION_TRODATA_SEGMENT:
set_segment_start (".rodata-segment", optarg);
break;
+ case OPTION_TLDATA_SEGMENT:
+ set_segment_start (".ldata-segment", optarg);
+ break;
case OPTION_TRADITIONAL_FORMAT:
link_info.traditional_format = TRUE;
break;
Index: ld/scripttempl/elf.sc
===================================================================
RCS file: /cvs/src/src/ld/scripttempl/elf.sc,v
retrieving revision 1.118
diff -u -p -r1.118 elf.sc
--- ld/scripttempl/elf.sc 9 Jan 2013 05:51:32 -0000 1.118
+++ ld/scripttempl/elf.sc 14 Jan 2013 12:46:19 -0000
@@ -608,6 +608,15 @@ cat <<EOF
${LARGE_BSS_AFTER_BSS+${LARGE_BSS}}
${RELOCATING+${OTHER_BSS_END_SYMBOLS}}
${RELOCATING+. = ALIGN(${ALIGNMENT});}
+EOF
+
+LARGE_DATA_ADDR=". = SEGMENT_START(\"ldata-segment\", ${LARGE_DATA_ADDR-.});"
+SHLIB_LARGE_DATA_ADDR=". = SEGMENT_START(\"ldata-segment\", ${SHLIB_LARGE_DATA_ADDR-.});"
+
+ cat <<EOF
+ ${RELOCATING+${CREATE_SHLIB-${CREATE_PIE-${LARGE_DATA_ADDR}}}}
+ ${RELOCATING+${CREATE_SHLIB+${SHLIB_LARGE_DATA_ADDR}}}
+ ${RELOCATING+${CREATE_PIE+${SHLIB_LARGE_DATA_ADDR}}}
${LARGE_SECTIONS}
${LARGE_BSS_AFTER_BSS-${LARGE_BSS}}
${RELOCATING+. = ALIGN(${ALIGNMENT});}
--
Alan Modra
Australia Development Lab, IBM