diff options
Diffstat (limited to 'gcc/config/ia64/build.hacks')
| -rw-r--r-- | gcc/config/ia64/build.hacks | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/gcc/config/ia64/build.hacks b/gcc/config/ia64/build.hacks new file mode 100644 index 00000000000..5da0d83ba22 --- /dev/null +++ b/gcc/config/ia64/build.hacks @@ -0,0 +1,97 @@ +The gcse.c patch fixes an optimization problem. This is probably not the right +solution, but it was quick. I will replace with a better solution later. + +The libio/libstdc++ patches are useful if you have a version of glibc without +thread support. There is no official ia64 glibc version yet, and some of the +unofficial ones in common use are missing thread support. libio/libstdc++ +assume that glibc always has thread support, so we need to patch them until +the official ia64 glibc is available. + +Index: gcc/gcse.c +=================================================================== +RCS file: /cvs/cvsfiles/devo/gcc/gcse.c,v +retrieving revision 1.87 +diff -p -r1.87 gcse.c +*** gcse.c 2000/01/11 14:59:28 1.87 +--- gcse.c 2000/02/16 04:17:06 +*************** try_replace_reg (from, to, insn) +*** 4039,4045 **** + information. */ + if (!success && !note) + { +! if (!set) + return 0; + note = REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_EQUAL, + copy_rtx (SET_SRC (set)), +--- 4039,4048 ---- + information. */ + if (!success && !note) + { +! /* Don't add a REG_EQUAL note for a CCmode destination, because this +! confuses the code in cse.c that simplifies compare and branch +! instructions. */ +! if (!set || GET_MODE_CLASS (GET_MODE (SET_DEST (set))) == MODE_CC) + return 0; + note = REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_EQUAL, + copy_rtx (SET_SRC (set)), +Index: libio/configure.in +=================================================================== +RCS file: /cvs/cvsfiles/devo/libio/configure.in,v +retrieving revision 1.57 +diff -p -r1.57 configure.in +*** configure.in 1999/10/26 03:42:26 1.57 +--- configure.in 2000/02/16 04:17:56 +*************** case "${target}" in +*** 57,62 **** +--- 57,64 ---- + frags="linux.mt linuxaxp1.mt mtsafe.mt" ;; + *-linux-gnulibc1) + frags=linuxlibc1.mt ;; ++ # ??? glibc does not have thread support yet, so we can't use mtsafe.mt. ++ ia64*-linux-gnu) frags="linux.mt" ;; + *-linux-gnu) frags="linux.mt mtsafe.mt" ;; + *-sco3.2v[45]*) frags=sco4.mt ;; + *-isc*) frags=isc.mt ;; +Index: libstdc++/configure.in +=================================================================== +RCS file: /cvs/cvsfiles/devo/libstdc++/configure.in,v +retrieving revision 1.46 +diff -p -r1.46 configure.in +*** configure.in 1999/09/21 19:26:16 1.46 +--- configure.in 2000/02/16 04:17:57 +*************** fi +*** 89,94 **** +--- 89,96 ---- + case "${target}" in + alpha*-*-linux-gnulibc1) frags="${frags} linux.mt" ;; + powerpc*-*-linux-gnulibc1) frags="${frags} linux.mt" ;; ++ # ??? ia64 glibc port does not have thread support yet. ++ ia64*-*-linux-gnu) ;; + *-*-linux-gnu) frags="${frags} linux.mt" ;; + *-*-openbsd*) + case "x${enable_threads}" in +Index: libstdc++/stl/stl_config.h +=================================================================== +RCS file: /cvs/cvsfiles/devo/libstdc++/stl/stl_config.h,v +retrieving revision 1.17 +diff -p -r1.17 stl_config.h +*** stl_config.h 1999/12/24 16:21:31 1.17 +--- stl_config.h 2000/02/16 04:17:58 +*************** +*** 168,174 **** + # if defined(__linux__) + /* glibc pre 2.0 is very buggy. We have to disable thread for it. + It should be upgraded to glibc 2.0 or later. */ +! # if !defined(_NOTHREADS) && __GLIBC__ >= 2 && defined(_G_USING_THUNKS) + # define __STL_PTHREADS + # ifdef __STRICT_ANSI__ + /* Work around a bug in the glibc 2.0.x pthread.h. */ +--- 168,175 ---- + # if defined(__linux__) + /* glibc pre 2.0 is very buggy. We have to disable thread for it. + It should be upgraded to glibc 2.0 or later. */ +! /* ??? ia64 glibc port does not have thread support yet. */ +! # if !defined(_NOTHREADS) && __GLIBC__ >= 2 && defined(_G_USING_THUNKS) && !defined(__ia64__) + # define __STL_PTHREADS + # ifdef __STRICT_ANSI__ + /* Work around a bug in the glibc 2.0.x pthread.h. */ |