* config/rs6000/xcoff.h (EH_FRAME_IN_DATA_SECTION): New.
* defaults.h (EH_FRAME_SECTION_NAME): Respect it.
* doc/tm.texi (Exception Region Output): Document it.
From-SVN: r44869
+2001-08-13 Richard Henderson <rth@redhat.com>
+
+ * config/rs6000/xcoff.h (EH_FRAME_IN_DATA_SECTION): New.
+ * defaults.h (EH_FRAME_SECTION_NAME): Respect it.
+ * doc/tm.texi (Exception Region Output): Document it.
+
2001-08-13 Geoffrey Keating <geoffk@redhat.com>
* config/rs6000/sysv4.h (PREFERRED_DEBUGGING_TYPE): Use
* s390.c, s390.h, s390.md, s390-protos.h, linux.h, t-linux:
Clean up code: add missing comments and prototypes, fix warnings,
- remove obsolete code, fix spacing to conform to coding style.
+ remove obsolete code, fix spacing to conform to coding style.
2001-08-11 Ulrich Weigand <uweigand@de.ibm.com>
/* Switch into a generic section. */
#define TARGET_ASM_NAMED_SECTION xcoff_asm_named_section
-/* Define the name of the section to use for the exception tables.
- TODO: test and see if we can use read_only_data_section, if so,
- remove this. */
-
+/* Define the name of the section to use for the EH language specific
+ data areas (.gcc_except_table on most other systems). */
#define EXCEPTION_SECTION data_section
+
+/* Define to prevent DWARF2 unwind info in the data section rather
+ than in the .eh_frame section. We do this because the AIX linker
+ would otherwise garbage collect these sections. */
+#define EH_FRAME_IN_DATA_SECTION 1
/* If we have named sections, and we're using crtstuff to run ctors,
use them for registering eh frame information. */
-#if defined (TARGET_ASM_NAMED_SECTION)
+#if defined (TARGET_ASM_NAMED_SECTION) && !defined(EH_FRAME_IN_DATA_SECTION)
#ifndef EH_FRAME_SECTION_NAME
#define EH_FRAME_SECTION_NAME ".eh_frame"
#endif
You should define this symbol if your target supports DWARF 2 frame
unwind information and the default definition does not work.
+@findex EH_FRAME_IN_DATA_SECTION
+@item EH_FRAME_IN_DATA_SECTION
+If defined, DWARF 2 frame unwind information will be placed in the
+data section even though the target supports named sections. This
+might be necessary, for instance, if the system linker does garbage
+collection and sections cannot be marked as not to be collected.
+
+Do not define this macro unless @code{TARGET_ASM_NAMED_SECTION} is
+also defined.
+
@findex OMIT_EH_TABLE
@item OMIT_EH_TABLE ()
A C expression that is nonzero if the normal exception table output