1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/patches/gcc/3.2.3/110-ppc405erratum77.patch Mon Jul 28 21:08:01 2008 +0000
1.3 @@ -0,0 +1,105 @@
1.4 +# See http://gcc.gnu.org/PR7383, http://www.kegel.com/xgcc3/ppc405erratum77.html
1.5 +# Fixed in gcc-3.3
1.6 +
1.7 +diff -aur gcc-20020722.orig/gcc/config/rs6000/rs6000.h gcc-20020722/gcc/config/rs6000/rs6000.h
1.8 +--- gcc-20020722.orig/gcc/config/rs6000/rs6000.h Thu Jul 25 09:32:21 2002
1.9 ++++ gcc-20020722/gcc/config/rs6000/rs6000.h Thu Jul 25 09:34:45 2002
1.10 +@@ -66,7 +66,7 @@
1.11 + %{mcpu=rsc1: -D_ARCH_PWR} \
1.12 + %{mcpu=401: -D_ARCH_PPC} \
1.13 + %{mcpu=403: -D_ARCH_PPC} \
1.14 +-%{mcpu=405: -D_ARCH_PPC} \
1.15 ++%{mcpu=405: -D_ARCH_PPC -D__PPC405__} \
1.16 + %{mcpu=505: -D_ARCH_PPC} \
1.17 + %{mcpu=601: -D_ARCH_PPC -D_ARCH_PWR} \
1.18 + %{mcpu=602: -D_ARCH_PPC} \
1.19 +diff -aur gcc-20020722.orig/libjava/sysdep/powerpc/locks.h gcc-20020722/libjava/sysdep/powerpc/locks.h
1.20 +--- gcc-20020722.orig/libjava/sysdep/powerpc/locks.h Thu Jul 25 09:32:30 2002
1.21 ++++ gcc-20020722/libjava/sysdep/powerpc/locks.h Thu Jul 25 11:39:13 2002
1.22 +@@ -11,6 +11,17 @@
1.23 + #ifndef __SYSDEP_LOCKS_H__
1.24 + #define __SYSDEP_LOCKS_H__
1.25 +
1.26 ++#ifdef __PPC405__
1.27 ++// workaround for PPC405 erratum #77 - 07/18/02 JRO, dank, NN. References:
1.28 ++// http://www-3.ibm.com/chips/techlib/techlib.nsf/techdocs/89DED00DEBFF54BF87256A8000491BA2/$file/405CR_C_errata_1_2.pdf
1.29 ++// http://ppc.bkbits.net:8080/linuxppc_2_4_devel/cset@1.489
1.30 ++// http://www.kegel.com/xgcc3/ppc405erratum77.html
1.31 ++// FIXME: using dbct instead of sync would be faster
1.32 ++#define __LIBGCJ_PPC405_ERR77_SYNC "sync \n\t"
1.33 ++#else
1.34 ++#define __LIBGCJ_PPC405_ERR77_SYNC
1.35 ++#endif
1.36 ++
1.37 + typedef size_t obj_addr_t; /* Integer type big enough for object */
1.38 + /* address. */
1.39 +
1.40 +@@ -25,6 +36,7 @@
1.41 + "0: lwarx %0,0,%1 ;"
1.42 + " xor. %0,%3,%0;"
1.43 + " bne 1f;"
1.44 ++ __LIBGCJ_PPC405_ERR77_SYNC
1.45 + " stwcx. %2,0,%1;"
1.46 + " bne- 0b;"
1.47 + "1: "
1.48 +@@ -58,6 +70,7 @@
1.49 + "0: lwarx %0,0,%1 ;"
1.50 + " xor. %0,%3,%0;"
1.51 + " bne 1f;"
1.52 ++ __LIBGCJ_PPC405_ERR77_SYNC
1.53 + " stwcx. %2,0,%1;"
1.54 + " bne- 0b;"
1.55 + "1: "
1.56 +diff -aur gcc-20020722.orig/libstdc++-v3/config/cpu/powerpc/bits/atomicity.h gcc-20020722/libstdc++-v3/config/cpu/powerpc/bits/atomicity.h
1.57 +--- gcc-20020722.orig/libstdc++-v3/config/cpu/powerpc/bits/atomicity.h Thu Jul 25 09:32:31 2002
1.58 ++++ gcc-20020722/libstdc++-v3/config/cpu/powerpc/bits/atomicity.h Thu Jul 25 09:34:45 2002
1.59 +@@ -32,6 +32,17 @@
1.60 +
1.61 + typedef int _Atomic_word;
1.62 +
1.63 ++#ifdef __PPC405__
1.64 ++// workaround for PPC405 erratum #77 - 07/18/02 JRO & dank. References:
1.65 ++// http://www-3.ibm.com/chips/techlib/techlib.nsf/techdocs/89DED00DEBFF54BF87256A8000491BA2/$file/405CR_C_errata_1_2.pdf
1.66 ++// http://ppc.bkbits.net:8080/linuxppc_2_4_devel/cset@1.489
1.67 ++// http://www.kegel.com/xgcc3/ppc405erratum77.html
1.68 ++// FIXME: using dbct instead of sync would be faster
1.69 ++#define __LIBSTDCPP_PPC405_ERR77_SYNC "sync \n\t"
1.70 ++#else
1.71 ++#define __LIBSTDCPP_PPC405_ERR77_SYNC
1.72 ++#endif
1.73 ++
1.74 + static inline _Atomic_word
1.75 + __attribute__ ((__unused__))
1.76 + __exchange_and_add (volatile _Atomic_word* __mem, int __val)
1.77 +@@ -42,6 +53,7 @@
1.78 + "0:\t"
1.79 + "lwarx %0,0,%2 \n\t"
1.80 + "add%I3 %1,%0,%3 \n\t"
1.81 ++ __LIBSTDCPP_PPC405_ERR77_SYNC
1.82 + "stwcx. %1,0,%2 \n\t"
1.83 + "bne- 0b \n\t"
1.84 + "/* End exchange & add */"
1.85 +@@ -61,6 +73,7 @@
1.86 + "0:\t"
1.87 + "lwarx %0,0,%1 \n\t"
1.88 + "add%I2 %0,%0,%2 \n\t"
1.89 ++ __LIBSTDCPP_PPC405_ERR77_SYNC
1.90 + "stwcx. %0,0,%1 \n\t"
1.91 + "bne- 0b \n\t"
1.92 + "/* End atomic add */"
1.93 +@@ -78,6 +91,7 @@
1.94 + "/* Inline always swap */\n"
1.95 + "0:\t"
1.96 + "lwarx %0,0,%1 \n\t"
1.97 ++ __LIBSTDCPP_PPC405_ERR77_SYNC
1.98 + "stwcx. %2,0,%1 \n\t"
1.99 + "bne- 0b \n\t"
1.100 + "/* End always swap */"
1.101 +@@ -98,6 +112,7 @@
1.102 + "lwarx %0,0,%1 \n\t"
1.103 + "cmpwi %0,0 \n\t"
1.104 + "bne- 1f \n\t"
1.105 ++ __LIBSTDCPP_PPC405_ERR77_SYNC
1.106 + "stwcx. %2,0,%1 \n\t"
1.107 + "bne- 0b \n"
1.108 + "1:\n\t"