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Preliminary PPC64/Linux host support

Browse Source 
ppc64.ld from Heikki Lindholm's patch
http://marc.info/?l=qemu-devel&m=114086179024634&w=2

Issues:
x86_64 tripple faults shortly after decompressing the kernel
No immediate versions of most 64 bit operations
More...

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4932 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
malc 2008-07-23 19:17:46 +00:00
parent e0e6c8c057
commit 810260a8f3
9 changed files with 1827 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Makefile.target
View File

@ -342,6 +342,10 @@ ifeq ($(ARCH),ppc)
LDFLAGS+=-Wl,-T,$(SRC_PATH)/$(ARCH).ld
endif
ifeq ($(ARCH),ppc64)
LDFLAGS+=-Wl,-T,$(SRC_PATH)/$(ARCH).ld
endif
ifeq ($(ARCH),s390)
LDFLAGS+=-Wl,-T,$(SRC_PATH)/$(ARCH).ld
endif

23
configure vendored
View File

@ -637,6 +637,24 @@ if test "$cpu" = "x86_64" \
hostlongbits="64"
fi
# ppc specific hostlongbits selection
if test "$cpu" = "powerpc" ; then
cat > $TMPC <<EOF
int main(void){return sizeof(long);}
EOF
if $cc $ARCH_CFLAGS -o $TMPE $TMPC 2> /dev/null; then
$TMPE
case $? in
4) hostlongbits="32";;
8) hostlongbits="64";;
*) echo "Couldn't determine bits per long value";;
esac
else
echo hostlongbits test failed
fi
fi
# check gcc options support
cat > $TMPC <<EOF
int main(void) {
@ -995,8 +1013,13 @@ case "$cpu" in
echo "#define HOST_MIPS64 1" >> $config_h
;;
powerpc)
if test "$hostlongbits" = "32"; then
echo "ARCH=ppc" >> $config_mak
echo "#define HOST_PPC 1" >> $config_h
else
echo "ARCH=ppc64" >> $config_mak
echo "#define HOST_PPC64 1" >> $config_h
fi
;;
s390)
echo "ARCH=s390" >> $config_mak

4
dyngen-exec.h
View File

@ -38,7 +38,7 @@ typedef unsigned int uint32_t;
// Linux/Sparc64 defines uint64_t
#if !(defined (__sparc_v9__) && defined(__linux__)) && !(defined(__APPLE__) && defined(__x86_64__))
/* XXX may be done for all 64 bits targets ? */
#if defined (__x86_64__) || defined(__ia64) || defined(__s390x__) || defined(__alpha__)
#if defined (__x86_64__) || defined(__ia64) || defined(__s390x__) || defined(__alpha__) || defined(__powerpc64__)
typedef unsigned long uint64_t;
#else
typedef unsigned long long uint64_t;
@ -55,7 +55,7 @@ typedef signed short int16_t;
typedef signed int int32_t;
// Linux/Sparc64 defines int64_t
#if !(defined (__sparc_v9__) && defined(__linux__)) && !(defined(__APPLE__) && defined(__x86_64__))
#if defined (__x86_64__) || defined(__ia64) || defined(__s390x__) || defined(__alpha__)
#if defined (__x86_64__) || defined(__ia64) || defined(__s390x__) || defined(__alpha__) || defined(__powerpc64__)
typedef signed long int64_t;
#else
typedef signed long long int64_t;

11
dyngen.c
View File

@ -68,6 +68,13 @@
#define elf_check_arch(x) ((x) == EM_PPC)
#define ELF_USES_RELOCA
#elif defined(HOST_PPC64)
#define ELF_CLASS ELFCLASS64
#define ELF_ARCH EM_PPC64
#define elf_check_arch(x) ((x) == EM_PPC64)
#define ELF_USES_RELOCA
#elif defined(HOST_S390)
#define ELF_CLASS ELFCLASS32
@ -1551,6 +1558,8 @@ void gen_code(const char *name, host_ulong offset, host_ulong size,
}
#elif defined(HOST_ARM)
error("dyngen targets not supported on ARM");
#elif defined(HOST_PPC64)
error("dyngen targets not supported on PPC64");
#else
#error unsupported CPU
#endif
@ -2592,6 +2601,8 @@ void gen_code(const char *name, host_ulong offset, host_ulong size,
}
#elif defined(HOST_ARM)
error("dyngen targets not supported on ARM");
#elif defined(HOST_PPC64)
error("dyngen targets not supported on PPC64");
#else
#error unsupported CPU
#endif

5
exec-all.h
View File

@ -191,6 +191,10 @@ extern int code_gen_max_blocks;
#if defined(USE_DIRECT_JUMP)
#if defined(__powerpc__)
#if defined(__powerpc64__)
extern void ppc_tb_set_jmp_target(unsigned long jmp_addr, unsigned long addr);
#define tb_set_jmp_target1 ppc_tb_set_jmp_target
#else
static inline void flush_icache_range(unsigned long start, unsigned long stop);
static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr)
{
@ -223,6 +227,7 @@ static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr
/* flush icache */
flush_icache_range(jmp_addr, jmp_addr + patch_size);
}
#endif
#elif defined(__i386__) || defined(__x86_64__)
static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr)
{

230
ppc64.ld Normal file
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@ -0,0 +1,230 @@
/* Script for -z combreloc: combine and sort reloc sections */
OUTPUT_FORMAT("elf64-powerpc", "elf64-powerpc",
"elf64-powerpc")
OUTPUT_ARCH(powerpc:common64)
ENTRY(_start)
SEARCH_DIR("/usr/powerpc64-unknown-linux-gnu/lib64");
EARCH_DIR("/usr/lib/binutils/powerpc64-unknown-linux-gnu/2.16.164");
EARCH_DIR("/usr/local/lib64"); SEARCH_DIR("/lib64"); SEARCH_DIR("/usr/lib64");
EARCH_DIR("/usr/powerpc64-unknown-linux-gnu/lib");
EARCH_DIR("/usr/lib/binutils/powerpc64-unknown-linux-gnu/2.16.1");
EARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib");
/* Do we need any of these for elf?
__DYNAMIC = 0; */
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1435
tcg/ppc64/tcg-target.c Normal file
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File diff suppressed because it is too large Load Diff

100
tcg/ppc64/tcg-target.h Normal file
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@ -0,0 +1,100 @@
/*
* Tiny Code Generator for QEMU
*
* Copyright (c) 2008 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#define TCG_TARGET_PPC64 1
#define TCG_TARGET_REG_BITS 64
#define TCG_TARGET_WORDS_BIGENDIAN
#define TCG_TARGET_NB_REGS 32
enum {
TCG_REG_R0 = 0,
TCG_REG_R1,
TCG_REG_R2,
TCG_REG_R3,
TCG_REG_R4,
TCG_REG_R5,
TCG_REG_R6,
TCG_REG_R7,
TCG_REG_R8,
TCG_REG_R9,
TCG_REG_R10,
TCG_REG_R11,
TCG_REG_R12,
TCG_REG_R13,
TCG_REG_R14,
TCG_REG_R15,
TCG_REG_R16,
TCG_REG_R17,
TCG_REG_R18,
TCG_REG_R19,
TCG_REG_R20,
TCG_REG_R21,
TCG_REG_R22,
TCG_REG_R23,
TCG_REG_R24,
TCG_REG_R25,
TCG_REG_R26,
TCG_REG_R27,
TCG_REG_R28,
TCG_REG_R29,
TCG_REG_R30,
TCG_REG_R31
};
/* used for function call generation */
#define TCG_REG_CALL_STACK TCG_REG_R1
#define TCG_TARGET_STACK_ALIGN 16
#define TCG_TARGET_CALL_STACK_OFFSET 8
/* optional instructions */
#define TCG_TARGET_HAS_neg_i32
#define TCG_TARGET_HAS_div_i32
#define TCG_TARGET_HAS_neg_i64
#define TCG_TARGET_HAS_div_i64
#define TCG_AREG0 TCG_REG_R27
#define TCG_AREG1 TCG_REG_R24
#define TCG_AREG2 TCG_REG_R25
#define TCG_AREG3 TCG_REG_R26
/* taken directly from tcg-dyngen.c */
#define MIN_CACHE_LINE_SIZE 8 /* conservative value */
static inline void flush_icache_range(unsigned long start, unsigned long stop)
{
unsigned long p;
start &= ~(MIN_CACHE_LINE_SIZE - 1);
stop = (stop + MIN_CACHE_LINE_SIZE - 1) & ~(MIN_CACHE_LINE_SIZE - 1);
for (p = start; p < stop; p += MIN_CACHE_LINE_SIZE) {
asm volatile ("dcbst 0,%0" : : "r"(p) : "memory");
}
asm volatile ("sync" : : : "memory");
for (p = start; p < stop; p += MIN_CACHE_LINE_SIZE) {
asm volatile ("icbi 0,%0" : : "r"(p) : "memory");
}
asm volatile ("sync" : : : "memory");
asm volatile ("isync" : : : "memory");
}

15
tcg/tcg.h
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@ -414,8 +414,23 @@ uint64_t tcg_helper_remu_i64(uint64_t arg1, uint64_t arg2);
extern uint8_t code_gen_prologue[];
#ifdef __powerpc__
#ifdef __powerpc64__
#define tcg_qemu_tb_exec(tb_ptr) \
({ unsigned long p; \
asm volatile ( \
"mtctr %1\n\t" \
"mr 3,%2\n\t" \
"bctrl\n\t" \
"mr %0,3\n\t" \
: "=r" (p) \
: "r" (code_gen_prologue), "r" (tb_ptr) \
: "3", "4", "5", "6", "7", "8", "9", "10", "11", "12"); \
p; \
})
#else
#define tcg_qemu_tb_exec(tb_ptr) \
((long REGPARM __attribute__ ((longcall)) (*)(void *))code_gen_prologue)(tb_ptr)
#endif
#else
#define tcg_qemu_tb_exec(tb_ptr) ((long REGPARM (*)(void *))code_gen_prologue)(tb_ptr)
#endif