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RFC: Add DWARF 2 support for section group
- From: "H. J. Lu" <hjl at lucon dot org>
- To: binutils at sources dot redhat dot com
- Cc: GDB <gdb at sources dot redhat dot com>
- Date: Wed, 28 Apr 2004 17:32:04 -0700
- Subject: RFC: Add DWARF 2 support for section group
The current ELF linker doesn't support DWARF for section group. We
have
/* DWARF 1.1 and DWARF 2 */
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
/* DWARF 2 */
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
For each section, it can be in a section group. I am thinking
something like. Also we need to support exception for section group.
Do we need something like
--- scripttempl/elf.sc.debug 2004-04-22 08:22:22.000000000 -0700
+++ scripttempl/elf.sc 2004-04-28 17:30:38.000000000 -0700
@@ -283,7 +283,7 @@ cat <<EOF
${CREATE_SHLIB-${SDATA2}}
${CREATE_SHLIB-${SBSS2}}
${OTHER_READONLY_SECTIONS}
- .eh_frame_hdr : { *(.eh_frame_hdr) }
+ .eh_frame_hdr : { *(.eh_frame_hdr .gnu.linkonce.efhdr.*) }
/* Adjust the address for the data segment. We want to adjust up to
the same address within the page on the next page up. */
@@ -318,7 +318,7 @@ cat <<EOF
.data1 ${RELOCATING-0} : { *(.data1) }
.tdata ${RELOCATING-0} : { *(.tdata${RELOCATING+ .tdata.* .gnu.linkonce.td.*}) }
.tbss ${RELOCATING-0} : { *(.tbss${RELOCATING+ .tbss.* .gnu.linkonce.tb.*})${RELOCATING+ *(.tcommon)} }
- .eh_frame ${RELOCATING-0} : { KEEP (*(.eh_frame)) }
+ .eh_frame ${RELOCATING-0} : { KEEP (*(.eh_frame .gnu.linkonce.ef.*)) }
.gcc_except_table ${RELOCATING-0} : { KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) }
${WRITABLE_RODATA+${RODATA}}
${OTHER_READWRITE_SECTIONS}
@@ -380,17 +380,17 @@ cat <<EOF
.debug_sfnames 0 : { *(.debug_sfnames) }
/* DWARF 1.1 and DWARF 2 */
- .debug_aranges 0 : { *(.debug_aranges) }
- .debug_pubnames 0 : { *(.debug_pubnames) }
+ .debug_aranges 0 : { *(.debug_aranges .gnu.linkonce.wa.*) }
+ .debug_pubnames 0 : { *(.debug_pubnames .gnu.linkonce.wp.*) }
/* DWARF 2 */
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
- .debug_abbrev 0 : { *(.debug_abbrev) }
- .debug_line 0 : { *(.debug_line) }
- .debug_frame 0 : { *(.debug_frame) }
- .debug_str 0 : { *(.debug_str) }
- .debug_loc 0 : { *(.debug_loc) }
- .debug_macinfo 0 : { *(.debug_macinfo) }
+ .debug_abbrev 0 : { *(.debug_abbrev .gnu.linkonce.wA.*) }
+ .debug_line 0 : { *(.debug_line .gnu.linkonce.wl.*) }
+ .debug_frame 0 : { *(.debug_frame .gnu.linkonce.wf.*) }
+ .debug_str 0 : { *(.debug_str .gnu.linkonce.ws.*) }
+ .debug_loc 0 : { *(.debug_loc .gnu.linkonce.wL.*) }
+ .debug_macinfo 0 : { *(.debug_macinfo .gnu.linkonce.wm.*) }
/* SGI/MIPS DWARF 2 extensions */
.debug_weaknames 0 : { *(.debug_weaknames) }
H.J.