+2008-08-17 Daniel Jacobowitz <dan@codesourcery.com>
+ Richard Sandiford <rdsandiford@googlemail.com>
+
+ * doc/install.texi (--with-mips-plt): Document.
+ * doc/invoke.texi (-mplt, -mno-plt): Document.
+ * config.gcc (mips*-*-*): Add mips-plt to supported_defaults
+ and handle ${with_mips_plt}.
+ * config/mips/mips.opt (mplt): New option.
+ * config/mips/mips.h (TARGET_ABICALLS_PIC0): New macro.
+ (TARGET_ABICALLS_PIC2): Likewise.
+ (TARGET_GPWORD): Return false for TARGET_ABSOLUTE_ABICALLS.
+ (OPTION_DEFAULT_SPECS): Add a mips-plt entry.
+ (ASM_SPEC): Use !mabi=* instead of !mabi*.
+ (MIPS_CALL): Use TARGET_ABICALLS_PIC2 instead of TARGET_ABICALLS
+ to decide whether to output ".option picX" directives.
+ * config/mips/linux.h (SUBTARGET_ASM_SPEC): Remove -mabi=64 handling.
+ Pass -call_nonpic rather than -KPIC for -mplt.
+ (BASE_DRIVER_SELF_SPECS): Remove -mplt if -mno-shared is not present
+ on the command line. Also remove it when -mabi=64 is used without
+ -msym32.
+ * config/mips/linux64.h (SUBTARGET_ASM_SPEC): Delete.
+ * config/mips/mips.c (mips_use_pic_fn_addr_reg_p): Handle
+ TARGET_ABICALLS_PIC0.
+ (mips_classify_symbol): Use TARGET_ABICALLS_PIC2 instead of
+ TARGET_ABICALLS.
+ (mips16_build_function_stub): Only output ".option pic" directives
+ and PIC stubs if TARGET_ABICALLS_PIC2. Call through $25 instead of $1.
+ (mips16_build_call_stub): Fix comment and remove redundant
+ ".set at"/"set .noat" directives.
+ (mips_function_rodata_section): Use the default behaviour for
+ TARGET_ABSOLUTE_ABICALLS.
+ (mips_file_start): Emit ".option pic0" for TARGET_ABICALLS_PIC0.
+ (mips_global_pointer): Handle TARGET_ABICALLS_PIC0.
+ (mips_restore_gp): Do nothing if the current function doesn't use
+ a global pointer.
+ (mips_expand_prologue): Only save $gp if the current function uses it.
+ Use a normal move for TARGET_ABICALLS_PIC0.
+ (mips_override_options): Only set flag_pic if TARGET_ABICALLS_PIC2.
+