Ticket #579: solbug.txt

Summary: build failure on Solaris/x86 with GCC and native assembler
Reported by: joernc@gmail.com
---
src/ops/experimental.ops tests for the compiler to choose appropriate
assembler code:

#if defined(__GNUC__) && defined(i386)
    __asm__("int3");       /* opcode 0xcc */
#endif

This fails e.g. on Solaris, when using GCC with the native assembler
/usr/ccs/bin/as.

This change

--- src/ops/experimental.ops    2009/04/24 11:33:01     1.1
+++ src/ops/experimental.ops    2009/04/24 11:33:17
@@ -45,7 +45,7 @@
 =cut
 
 op trap() :deprecated {
-#if defined(__GNUC__) && defined(i386)
+#if defined(__GNUC__) && defined(i386) && !defined(__sun__)
     __asm__("int3");       /* opcode 0xcc */
 #endif
 #if defined(__GNUC__) && defined(PPC)

does the trick for me, but may not work then using gas. How to implement
the real fix (i.e. checking for the assembler, not the compiler in the
first place) is unknown to me.

As this file defines experimental opcodes, that are "implicitly deprecated",
how about adding a configure flag to switch them off (or switch them off
by default and add a flag to turn them on when needed) in Configure.pl?


---
osname= solaris
osvers= 2.10
arch=   i86pc-solaris-64int
cc=     cc
---
Flags:
    category=install
    severity=medium
    ack=no
---
Summary of my parrot 1.1.0 (r0) configuration:
  configdate='Fri Apr 24 11:16:30 2009 GMT'
  Platform:
    osname=solaris, archname=i386-solaris-thread-multi
    jitcapable=1, jitarchname=i386-solaris,
    jitosname=SOLARIS, jitcpuarch=i386
    execcapable=0
    perl=perl
  Compiler:
    cc='gcc', ccflags='-D_REENTRANT  -pipe -I/usr/pkgsrc/20090421/include  -DHASATTRIBUTE_CONST  -DHASATTRIBUTE_DEPRECATED  -DHASATTRIBUTE_MALLOC  -DHASATTRIBUTE_NONNULL  -DHASATTRIBUTE_NORETURN  -DHASATTRIBUTE_PURE  -DHASATTRIBUTE_UNUSED  -DHASATTRIBUTE_WARN_UNUSED_RESULT  -falign-functions=16 -funit-at-a-time -maccumulate-outgoing-args -W -Wall -Waggregate-return -Wcast-align -Wcast-qual -Wchar-subscripts -Wcomment -Wdisabled-optimization -Wendif-labels -Wextra -Wformat -Wformat-extra-args -Wformat-nonliteral -Wformat-security -Wformat-y2k -Wimplicit -Wimport -Winit-self -Winline -Winvalid-pch -Wmissing-braces -Wno-missing-format-attribute -Wpacked -Wparentheses -Wpointer-arith -Wreturn-type -Wsequence-point -Wno-shadow -Wsign-compare -Wstrict-aliasing -Wstrict-aliasing=2 -Wswitch -Wswitch-default -Wtrigraphs -Wundef -Wunknown-pragmas -Wno-unused -Wwrite-strings -Wbad-function-cast -Wdeclaration-after-statement -Wimplicit-function-declaration -Wimplicit-int -Wmain -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wnonnull -DHAS_GETTEXT',
  Linker and Libraries:
    ld='gcc', ldflags='-Wl,-R/usr/pkgsrc/20090421/lib  -L/usr/pkgsrc/20090421/lib',
    cc_ldflags='',
    libs='-lm -ldl -lsocket -lnsl -lpthread -lrt -lreadline -lintl'
  Dynamic Linking:
    share_ext='.so', ld_share_flags='-Wl,-R/usr/pkgsrc/20090421/lib -G -L/usr/pkgsrc/20090421/lib',
    load_ext='.so', ld_load_flags='-Wl,-R/usr/pkgsrc/20090421/lib -G -L/usr/pkgsrc/20090421/lib'
  Types:
    iv=long, intvalsize=4, intsize=4, opcode_t=long, opcode_t_size=4,
    ptrsize=4, ptr_alignment=1 byteorder=1234, 
    nv=double, numvalsize=8, doublesize=8, longdoublesize=12

---
Environment:
    HOME =/home/joern
    LANG  (unset)
    LANGUAGE  (unset)
    LC_CTYPE =en_US.ISO8859-1
    LC_MESSAGES =C
    LC_MONETARY =en_US.ISO8859-1
    LC_NUMERIC =en_US.ISO8859-1
    LC_TIME =en_US.ISO8859-1
    LD_LIBRARY_PATH  (unset)
    LOGDIR  (unset)
    PATH =/usr/pkgsrc/head/bin:/usr/pkgsrc/head/sbin:/usr/pkgsrc/head/gcc34/bin:/usr/bin:/usr/sbin:/usr/openwin/bin:/usr/dt/bin:/usr/ccs/bin
    PERLLIB =/home/joern/perl/lib/perl5:/home/joern/perl/lib/perl5/site_perl/5.8.0
    SHELL =/bin/tcsh