Glenn Fowler wrote: > > the compiles that work have this initial command segment > cw -_cc -xO3 -xarch=amd64 > and the one that fails has > cw -_cc "" -xarch=amd64 > > and gcc chokes on the input file named "" > it doesn't help that the "" doesn't show up in the gcc command trace > > looks like a problem with a "don't optimize streval.c" assertion, > however that is done in the shadow build system
Ouch ouch... now I remeber why "streval" looks that familar... ... lib/libshell/amd64/Makefile still has the Sun Studio 10 workaround enabled -- snip -- # Workaround for a Sun Studio 10 compiler bug which causes ksh93 to # crash like this: # -- snip -- # % dbx ksh core # [snip] # program terminated by signal SEGV (no mapping at the fault address) # 0xfffffd7fff357eae: expr+0x004e: cmpl 0x000000000003ef1f(%rbx),%r8d # (dbx) where # =>[1] expr(0xfffffd7fffdff728, 0x1f, 0x28, 0xfffffd7fff37048e, 0xfffffd7fff357ed2, 0x7), at 0xfffffd7fff357eae # [2] arith_compile(0x0, 0x0, 0x0, 0x0, 0x0, 0x0), at 0xfffffd7fff359136 # [3] sh_arithcomp(0x0, 0x0, 0x0, 0x0, 0x0, 0x0), at 0xfffffd7fff3271cf # [4] getanode(0x0, 0x0, 0x0, 0x0, 0x0, 0x0), at 0xfffffd7fff34d236 # [5] item(0x0, 0x0, 0x0, 0x0, 0x0, 0x0), at 0xfffffd7fff34f1d5 # [6] term(0x0, 0x0, 0x0, 0x0, 0x0, 0x0), at 0xfffffd7fff34da7f # [7] list(0x0, 0x0, 0x0, 0x0, 0x0, 0x0), at 0xfffffd7fff34d9b4 # [8] sh_cmd(0x0, 0x0, 0x0, 0x0, 0x0, 0x0), at 0xfffffd7fff34d888 # [9] item(0x0, 0x0, 0x0, 0x0, 0x0, 0x0), at 0xfffffd7fff34f12d # [10] term(0x0, 0x0, 0x0, 0x0, 0x0, 0x0), at 0xfffffd7fff34da7f # [11] list(0x0, 0x0, 0x0, 0x0, 0x0, 0x0), at 0xfffffd7fff34d9b4 # [12] sh_cmd(0x0, 0x0, 0x0, 0x0, 0x0, 0x0), at 0xfffffd7fff34d888 # [13] sh_parse(0x0, 0x0, 0x0, 0x0, 0x0, 0x0), at 0xfffffd7fff34d530 # [14] exfile(0x0, 0x0, 0x0, 0x0, 0x0, 0x0), at 0xfffffd7fff3235ff # [15] sh_main(0x0, 0x0, 0x0, 0x0, 0x0, 0x0), at 0xfffffd7fff322f22 # [16] main(0x0, 0x0, 0x0, 0x0, 0x0, 0x0), at 0x4009d5 # [snip] # % cc -V # cc: Sun C 5.7 Patch 117837-04 2005/05/11 # usage: cc [ options] files. Use 'cc -flags' for details # -- snip -- # The workaround is to disable the optimisation (the bug manifests # itself at -xO3, -xO2 and -xO1... ;-( ), either for all libshell.so # objects... # -- snip -- # amd64_COPTFLAG="" # -- snip -- # ... or only for streval.c: # -- snip -- # pics/sh/streval.o := amd64_COPTFLAG="" # -- snip -- pics/sh/streval.o := amd64_COPTFLAG="" -- snip -- ... which confuses the gcc shadow build... ... I filed http://bugs.grommit.com/show_bug.cgi?id=21 to get the issue fixed. Thanks for the help! :-) ---- Bye, Roland -- __ . . __ (o.\ \/ /.o) roland.mainz at nrubsig.org \__\/\/__/ MPEG specialist, C&&JAVA&&Sun&&Unix programmer /O /==\ O\ TEL +49 641 7950090 (;O/ \/ \O;)
