diff options
author | wtc <devnull@localhost> | 1998-04-16 22:56:27 +0000 |
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committer | wtc <devnull@localhost> | 1998-04-16 22:56:27 +0000 |
commit | 7420b134daf6b01978c4bb5762d11043d29d226c (patch) | |
tree | e7bcbb81af73af9b5c4e7f57f3396499e1b495a6 | |
parent | 901f5e9c02a5f01773b0a63ddd77d59ddb5c97dc (diff) | |
download | nspr-hg-7420b134daf6b01978c4bb5762d11043d29d226c.tar.gz |
Ported to Linux/m68k. The patches were kindly provided by
Jes Sorensen <Jes.Sorensen@cern.ch>.
-rw-r--r-- | config/Linux.mk | 11 | ||||
-rw-r--r-- | pr/include/md/_linux.cfg | 46 | ||||
-rw-r--r-- | pr/include/md/_linux.h | 18 |
3 files changed, 74 insertions, 1 deletions
diff --git a/config/Linux.mk b/config/Linux.mk index 9b088fdd..e9ae9524 100644 --- a/config/Linux.mk +++ b/config/Linux.mk @@ -72,6 +72,17 @@ endif ifeq ($(CPU_ARCH),x86) PLATFORM_FLAGS += -mno-486 -DLINUX1_2 -Di386 endif +ifeq ($(CPU_ARCH),m68k) +# +# gcc on Linux/m68k either has a bug or triggers a code-sequence +# bug in the 68060 which causes gcc to crash. The simplest way to +# avoid this is to enable a minimum level of optimization. +# +ifndef BUILD_OPT +OPTIMIZER += -O +endif +PLATFORM_FLAGS += -m68020-40 -DLINUX1_2 +endif ifeq ($(OS_RELEASE),2.0) PLATFORM_FLAGS += -DLINUX2_0 diff --git a/pr/include/md/_linux.cfg b/pr/include/md/_linux.cfg index 5d0be4de..a269025c 100644 --- a/pr/include/md/_linux.cfg +++ b/pr/include/md/_linux.cfg @@ -116,7 +116,51 @@ #define PR_BYTES_PER_WORD_LOG2 3 #define PR_BYTES_PER_DWORD_LOG2 3 -#else +#elif defined(__mc68000__) + +#undef IS_LITTLE_ENDIAN +#define IS_BIG_ENDIAN 1 + +#define PR_BYTES_PER_BYTE 1 +#define PR_BYTES_PER_SHORT 2 +#define PR_BYTES_PER_INT 4 +#define PR_BYTES_PER_INT64 8 +#define PR_BYTES_PER_LONG 4 +#define PR_BYTES_PER_FLOAT 4 +#define PR_BYTES_PER_DOUBLE 8 +#define PR_BYTES_PER_WORD 4 +#define PR_BYTES_PER_DWORD 8 + +#define PR_BITS_PER_BYTE 8 +#define PR_BITS_PER_SHORT 16 +#define PR_BITS_PER_INT 32 +#define PR_BITS_PER_INT64 64 +#define PR_BITS_PER_LONG 32 +#define PR_BITS_PER_FLOAT 32 +#define PR_BITS_PER_DOUBLE 64 +#define PR_BITS_PER_WORD 32 + +#define PR_BITS_PER_BYTE_LOG2 3 +#define PR_BITS_PER_SHORT_LOG2 4 +#define PR_BITS_PER_INT_LOG2 5 +#define PR_BITS_PER_INT64_LOG2 6 +#define PR_BITS_PER_LONG_LOG2 5 +#define PR_BITS_PER_FLOAT_LOG2 5 +#define PR_BITS_PER_DOUBLE_LOG2 6 +#define PR_BITS_PER_WORD_LOG2 5 + +#define PR_ALIGN_OF_SHORT 2 +#define PR_ALIGN_OF_INT 2 +#define PR_ALIGN_OF_LONG 2 +#define PR_ALIGN_OF_INT64 2 +#define PR_ALIGN_OF_FLOAT 2 +#define PR_ALIGN_OF_DOUBLE 2 +#define PR_ALIGN_OF_POINTER 2 + +#define PR_BYTES_PER_WORD_LOG2 2 +#define PR_BYTES_PER_DWORD_LOG2 3 + +#else /* x86 */ #define IS_LITTLE_ENDIAN 1 #undef IS_BIG_ENDIAN diff --git a/pr/include/md/_linux.h b/pr/include/md/_linux.h index 30649ebb..03b526e3 100644 --- a/pr/include/md/_linux.h +++ b/pr/include/md/_linux.h @@ -31,6 +31,8 @@ #define _PR_SI_ARCHITECTURE "ppc" #elif defined(__alpha) #define _PR_SI_ARCHITECTURE "alpha" +#elif defined(__mc68000__) +#define _PR_SI_ARCHITECTURE "m68k" #else #define _PR_SI_ARCHITECTURE "x86" #endif @@ -97,6 +99,22 @@ extern void _MD_CleanupBeforeExit(void); /* XXX not sure if this is correct, or maybe it should be 17? */ #define PR_NUM_GCREGS 9 +#elif defined(__mc68000__) +/* m68k based Linux */ + +/* + * On the m68k, glibc still uses the old style sigjmp_buf, even + * in glibc 2.0.7. + */ +#if defined(__GLIBC__) && __GLIBC__ >= 2 +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp +#else +#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp +#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */ + +/* XXX not sure if this is correct, or maybe it should be 17? */ +#define PR_NUM_GCREGS 9 + #else /* Intel based Linux */ #if defined(__GLIBC__) && __GLIBC__ >= 2 |