* dbxread.c (MSYMBOL_SIZE): New macro.

	(end_psymtab): Use MSYMBOL_SIZE to extract size from minimal symbol.
	* elfread.c (elf_symtab_read): If ELF symbol is "special",
	such as a MIPS16 function, mark minimal symbol as special too.
	* mips-tdep.c (pc_is_mips16): New function to check whether
	a function is MIPS16 by looking at the minimal symbol.  Use
	pc_is_mips16 throughout instead of IS_MIPS16_ADDR macro.
	* config/mips/tm-mips.h (SYMBOL_IS_SPECIAL, MAKE_MSYMBOL_SPECIAL,
	MSYMBOL_IS_SPECIAL, MSYMBOL_SIZE): New functions for setting/testing
	"special" MIPS16 bit in ELF and minimal symbols.
	* mdebugread.c (parse_partial_symbols): Don't construct a partial
	symbol table for a file that already has one.
start-sanitize-tx19
	* configure.tgt: Support TX19.
	* config/mips/tm-tx19.h, config/mips/tm-tx19l.h, config/mips/tx19.mt,
	config/mips/tx19l.mt: New files for TX19.
end-sanitize-tx19

1 files changed, 24 insertions, 0 deletions

diff --git a/gdb/config/mips/tm-mips.h b/gdb/config/mips/tm-mips.h
index ca92c35..484b031 100644
--- a/gdb/config/mips/tm-mips.h
+++ b/gdb/config/mips/tm-mips.h
@@ -543,3 +543,27 @@ typedef unsigned long t_inst;	/* Integer big enough to hold an instruction */
 #define UNMAKE_MIPS16_ADDR(addr) ((addr) & ~1)
 
 #endif	/* TM_MIPS_H */
+
+/* Macros for setting and testing a bit in a minimal symbol that
+   marks it as 16-bit function.  The MSB of the minimal symbol's
+   "info" field is used for this purpose.  This field is already
+   being used to store the symbol size, so the assumption is
+   that the symbol size cannot exceed 2^31.
+
+   SYMBOL_IS_SPECIAL	tests whether an ELF symbol is "special", i.e. refers
+			to a 16-bit function
+   MAKE_MSYMBOL_SPECIAL	sets a "special" bit in a minimal symbol to mark it
+   			as a 16-bit function
+   MSYMBOL_IS_SPECIAL	tests the "special" bit in a minimal symbol
+   MSYMBOL_SIZE		returns the size of the minimal symbol, i.e.
+			the "info" field with the "special" bit masked out
+*/
+
+#define SYMBOL_IS_SPECIAL(sym) \
+  (((elf_symbol_type *) sym) -> internal_elf_sym.st_other == STO_MIPS16)
+#define MAKE_MSYMBOL_SPECIAL(msym) \
+  MSYMBOL_INFO (msym) = (char *) (((long) MSYMBOL_INFO (msym)) | 0x80000000)
+#define MSYMBOL_IS_SPECIAL(msym) \
+  (((long) MSYMBOL_INFO (msym) & 0x80000000) != 0)
+#define MSYMBOL_SIZE(msym) \
+  ((long) MSYMBOL_INFO (msym) & 0x7fffffff)