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authorPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>2005-09-10 19:44:54 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-10 12:00:17 -0700
commita7d0c210337246fa9c25b73cf76dfdbb159f642b (patch)
treec139c803766b08ea2fc20a3e8f99b2952b6a1f0c
parent2d5cbf324c0fd4d0e1427bcb50b8bc00069e81b8 (diff)
[PATCH] i386 / uml: add dwarf sections to static link script
Inside the linker script, insert the code for DWARF debug info sections. This may help GDB'ing a Uml binary. Actually, it seems that ld is able to guess what I added correctly, but normal linker scripts include this section so it should be correct anyway adding it. On request by Sam Ravnborg <sam@ravnborg.org>, I've added it to asm-generic/vmlinux.lds.s. I've also moved there the stabs debug section, used the new macro in i386 linker script and added DWARF debug section to that. In the truth, I've not been able to verify the difference in GDB behaviour after this change (I've seen large improvements with another patch). This may depend on my binutils version, older one may have worse defaults. However, this section is present in normal linker script, so add it at least for the sake of cleanness. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--arch/i386/kernel/vmlinux.lds.S11
-rw-r--r--arch/um/kernel/dyn.lds.S37
-rw-r--r--arch/um/kernel/uml.lds.S14
-rw-r--r--include/asm-generic/vmlinux.lds.h38
4 files changed, 50 insertions, 50 deletions
diff --git a/arch/i386/kernel/vmlinux.lds.S b/arch/i386/kernel/vmlinux.lds.S
index 13b9c62cbbb4..4710195b6b74 100644
--- a/arch/i386/kernel/vmlinux.lds.S
+++ b/arch/i386/kernel/vmlinux.lds.S
@@ -144,12 +144,7 @@ SECTIONS
*(.exitcall.exit)
}
- /* Stabs debugging sections. */
- .stab 0 : { *(.stab) }
- .stabstr 0 : { *(.stabstr) }
- .stab.excl 0 : { *(.stab.excl) }
- .stab.exclstr 0 : { *(.stab.exclstr) }
- .stab.index 0 : { *(.stab.index) }
- .stab.indexstr 0 : { *(.stab.indexstr) }
- .comment 0 : { *(.comment) }
+ STABS_DEBUG
+
+ DWARF_DEBUG
}
diff --git a/arch/um/kernel/dyn.lds.S b/arch/um/kernel/dyn.lds.S
index 3942a5f245de..2517ecb8bf27 100644
--- a/arch/um/kernel/dyn.lds.S
+++ b/arch/um/kernel/dyn.lds.S
@@ -146,37 +146,8 @@ SECTIONS
}
_end = .;
PROVIDE (end = .);
- /* Stabs debugging sections. */
- .stab 0 : { *(.stab) }
- .stabstr 0 : { *(.stabstr) }
- .stab.excl 0 : { *(.stab.excl) }
- .stab.exclstr 0 : { *(.stab.exclstr) }
- .stab.index 0 : { *(.stab.index) }
- .stab.indexstr 0 : { *(.stab.indexstr) }
- .comment 0 : { *(.comment) }
- /* DWARF debug sections.
- Symbols in the DWARF debugging sections are relative to the beginning
- of the section so we begin them at 0. */
- /* DWARF 1 */
- .debug 0 : { *(.debug) }
- .line 0 : { *(.line) }
- /* GNU DWARF 1 extensions */
- .debug_srcinfo 0 : { *(.debug_srcinfo) }
- .debug_sfnames 0 : { *(.debug_sfnames) }
- /* 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) }
- /* SGI/MIPS DWARF 2 extensions */
- .debug_weaknames 0 : { *(.debug_weaknames) }
- .debug_funcnames 0 : { *(.debug_funcnames) }
- .debug_typenames 0 : { *(.debug_typenames) }
- .debug_varnames 0 : { *(.debug_varnames) }
+
+ STABS_DEBUG
+
+ DWARF_DEBUG
}
diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S
index b03326d391c9..af11915ce0a8 100644
--- a/arch/um/kernel/uml.lds.S
+++ b/arch/um/kernel/uml.lds.S
@@ -93,14 +93,10 @@ SECTIONS
*(.bss)
*(COMMON)
}
- _end = . ;
+ _end = .;
PROVIDE (end = .);
- /* Stabs debugging sections. */
- .stab 0 : { *(.stab) }
- .stabstr 0 : { *(.stabstr) }
- .stab.excl 0 : { *(.stab.excl) }
- .stab.exclstr 0 : { *(.stab.exclstr) }
- .stab.index 0 : { *(.stab.index) }
- .stab.indexstr 0 : { *(.stab.indexstr) }
- .comment 0 : { *(.comment) }
+
+ STABS_DEBUG
+
+ DWARF_DEBUG
}
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 6f857be2b644..a9c55490fb82 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -103,3 +103,41 @@
VMLINUX_SYMBOL(__kprobes_text_start) = .; \
*(.kprobes.text) \
VMLINUX_SYMBOL(__kprobes_text_end) = .;
+
+ /* DWARF debug sections.
+ Symbols in the DWARF debugging sections are relative to
+ the beginning of the section so we begin them at 0. */
+#define DWARF_DEBUG \
+ /* DWARF 1 */ \
+ .debug 0 : { *(.debug) } \
+ .line 0 : { *(.line) } \
+ /* GNU DWARF 1 extensions */ \
+ .debug_srcinfo 0 : { *(.debug_srcinfo) } \
+ .debug_sfnames 0 : { *(.debug_sfnames) } \
+ /* 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) } \
+ /* SGI/MIPS DWARF 2 extensions */ \
+ .debug_weaknames 0 : { *(.debug_weaknames) } \
+ .debug_funcnames 0 : { *(.debug_funcnames) } \
+ .debug_typenames 0 : { *(.debug_typenames) } \
+ .debug_varnames 0 : { *(.debug_varnames) } \
+
+ /* Stabs debugging sections. */
+#define STABS_DEBUG \
+ .stab 0 : { *(.stab) } \
+ .stabstr 0 : { *(.stabstr) } \
+ .stab.excl 0 : { *(.stab.excl) } \
+ .stab.exclstr 0 : { *(.stab.exclstr) } \
+ .stab.index 0 : { *(.stab.index) } \
+ .stab.indexstr 0 : { *(.stab.indexstr) } \
+ .comment 0 : { *(.comment) }

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