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From: Don Bowman <don@pixsci.com> Date: Sun, 29 Mar 1998 18:46:03 -0500 Under VxWorks 5.3.1 [The Tornado 1.0.1 release] for the MIPS targets, gas cannot create a debuggable image. This occurs since the Tornado target server requires a separate .stab & .stabstr section. It cannot deal with the .mdebug ecoff section. The fix is to three main areas: 1: configure: accept 'mips-wrs-vxworks' as a valid configuration target 2: obj-elf.h: allow output to separate sections. The comment that was there indicated this had been removed due to an Irix 6 limitation. This may not affect any of the other ELF targets, but I cannot say for certain: it certainly does not affect the VxWorks MIPS platform. The .mdebug section is required on Irix 5, because the Irix 5 linker can not handle .stab/.stabstr sections. I do not believe the .mdebug section is required on Irix 6, although gas doesn't support Irix 6 anyhow so I haven't tested this. It appears that your patch will always generate .stab/.stabstr sections, even on Irix 5, since MIPS_STABS_ELF is always defined in obj-elf.h in your patch. Presumably WRS ships a toolchain which permits debugging for MIPS targets. What do they do? 3: A fix to ecoff.c: the comment about input_line_pointer pointing to the beginning of the stab value appears incorrect. This appears unrelated to the other issues. Can you send a test case for this? As far as I can tell from s_stab_generic, input_line_pointer will indeed point to the start of the value when ecoff_stab is called. Without a test case, I can't judge whether your patch is appropriate. Ian