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xscale-elf support 

From-SVN: r49626
This commit is contained in:
Anthony Green 2002-02-09 00:50:05 +00:00 committed by Anthony Green
parent 85aa876c4b
commit b6459d9a78
4 changed files with 87 additions and 52 deletions
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11
boehm-gc/ChangeLog
View File

@ -1,3 +1,14 @@
2001-02-08 Anthony Green <green@redhat.com>
* include/private/gcconfig.h: Add XSCALE NOSYS support for bare
board embedded targets.
* os_dep.c: Avoid signal handling code for NOSYS/ECOS targets.
Use GC_get_stack_base for NOSYS/ECOS targets. Clean up some
redundant uses of ECOS.
* misc.c: Use NOSYS where ECOS is being used.
Don't define GC_write twice for ECOS systems.
(GC_write): New function for NOSYS targets.
2002-02-06 Adam Megacz <adam@xwt.org>
* boehm-gc/include/gc.h: (GC_CreateThread) This function is

16
boehm-gc/include/private/gcconfig.h
View File

@ -39,6 +39,13 @@
# endif
/* Determine the machine type: */
# if defined(__XSCALE__)
# define ARM32
# if !defined(LINUX)
# define NOSYS
# define mach_type_known
# endif
# endif
# if defined(sun) && defined(mc68000)
# define M68K
# define SUNOS4
@ -1495,6 +1502,15 @@
# define OS_TYPE "MSWINCE"
# define DATAEND /* not needed */
# endif
# ifdef NOSYS
/* __data_start is usually defined in the target linker script. */
extern int __data_start;
# define DATASTART (ptr_t)(&__data_start)
# define USE_GENERIC_PUSH_REGS
/* __stack_base__ is set in newlib/libc/sys/arm/crt0.S */
extern void *__stack_base__;
# define STACKBOTTOM ((ptr_t) (__stack_base__))
# endif
#endif
# ifdef SH

15
boehm-gc/misc.c
View File

@ -69,7 +69,7 @@
# endif
# endif
#ifdef ECOS
#if defined(NOSYS) || defined(ECOS)
#undef STACKBASE
#endif
@ -744,7 +744,8 @@ int GC_tmp; /* Should really be local ... */
# endif
#endif
#if !defined(MSWIN32) && !defined(MSWINCE) && !defined(OS2) && !defined(MACOS)
#if !defined(MSWIN32) && !defined(MSWINCE) && !defined(OS2) \
&& !defined(MACOS) && !defined(ECOS) && !defined(NOSYS)
int GC_write(fd, buf, len)
int fd;
GC_CONST char *buf;
@ -767,7 +768,7 @@ size_t len;
}
#endif /* UN*X */
#if defined(ECOS)
#ifdef ECOS
int GC_write(fd, buf, len)
{
_Jv_diag_write (buf, len);
@ -775,6 +776,14 @@ int GC_write(fd, buf, len)
}
#endif
#ifdef NOSYS
int GC_write(fd, buf, len)
{
/* No writing. */
return len;
}
#endif
#if defined(MSWIN32) || defined(MSWINCE)
# define WRITE(f, buf, len) GC_write(buf, len)

97
boehm-gc/os_dep.c
View File

@ -333,7 +333,8 @@ void GC_enable_signals(void)
# if !defined(PCR) && !defined(AMIGA) && !defined(MSWIN32) \
&& !defined(MSWINCE) \
&& !defined(MACOS) && !defined(DJGPP) && !defined(DOS4GW)
&& !defined(MACOS) && !defined(DJGPP) && !defined(DOS4GW) \
&& !defined(NOSYS) && !defined(ECOS)
# if defined(sigmask) && !defined(UTS4) && !defined(HURD)
/* Use the traditional BSD interface */
@ -516,7 +517,7 @@ ptr_t GC_get_stack_base()
# undef GC_AMIGA_SB
# endif /* AMIGA */
# if defined(NEED_FIND_LIMIT) || (defined(UNIX_LIKE) && !defined(ECOS))
# if defined(NEED_FIND_LIMIT) || defined(UNIX_LIKE)
# ifdef __STDC__
typedef void (*handler)(int);
@ -540,8 +541,7 @@ ptr_t GC_get_stack_base()
handler h;
# endif
{
# ifndef ECOS
# if defined(SUNOS5SIGS) || defined(IRIX5) \
# if defined(SUNOS5SIGS) || defined(IRIX5) \
|| defined(OSF1) || defined(HURD)
struct sigaction act;
@ -579,7 +579,6 @@ ptr_t GC_get_stack_base()
old_bus_handler = signal(SIGBUS, h);
# endif
# endif
# endif /* ECOS */
}
# endif /* NEED_FIND_LIMIT || UNIX_LIKE */
@ -602,21 +601,19 @@ ptr_t GC_get_stack_base()
void GC_reset_fault_handler()
{
# ifndef ECOS
# if defined(SUNOS5SIGS) || defined(IRIX5) \
|| defined(OSF1) || defined(HURD)
(void) sigaction(SIGSEGV, &old_segv_act, 0);
# if defined(IRIX5) && defined(_sigargs) /* Irix 5.x, not 6.x */ \
|| defined(HPUX) || defined(HURD)
(void) sigaction(SIGBUS, &old_bus_act, 0);
# endif
# else
(void) signal(SIGSEGV, old_segv_handler);
# ifdef SIGBUS
(void) signal(SIGBUS, old_bus_handler);
# endif
# endif
# endif /* ECOS */
# if defined(SUNOS5SIGS) || defined(IRIX5) \
|| defined(OSF1) || defined(HURD)
(void) sigaction(SIGSEGV, &old_segv_act, 0);
# if defined(IRIX5) && defined(_sigargs) /* Irix 5.x, not 6.x */ \
|| defined(HPUX) || defined(HURD)
(void) sigaction(SIGBUS, &old_bus_act, 0);
# endif
# else
(void) signal(SIGSEGV, old_segv_handler);
# ifdef SIGBUS
(void) signal(SIGBUS, old_bus_handler);
# endif
# endif
}
/* Return the first nonaddressible location > p (up) or */
@ -625,39 +622,41 @@ ptr_t GC_get_stack_base()
ptr_t p;
GC_bool up;
{
# ifndef ECOS
static VOLATILE ptr_t result;
/* Needs to be static, since otherwise it may not be */
/* preserved across the longjmp. Can safely be */
/* static since it's only called once, with the */
/* allocation lock held. */
static VOLATILE ptr_t result;
/* Needs to be static, since otherwise it may not be */
/* preserved across the longjmp. Can safely be */
/* static since it's only called once, with the */
/* allocation lock held. */
GC_setup_temporary_fault_handler();
if (setjmp(GC_jmp_buf) == 0) {
result = (ptr_t)(((word)(p))
& ~(MIN_PAGE_SIZE-1));
for (;;) {
if (up) {
result += MIN_PAGE_SIZE;
} else {
result -= MIN_PAGE_SIZE;
}
GC_noop1((word)(*result));
}
}
GC_reset_fault_handler();
if (!up) {
GC_setup_temporary_fault_handler();
if (setjmp(GC_jmp_buf) == 0) {
result = (ptr_t)(((word)(p))
& ~(MIN_PAGE_SIZE-1));
for (;;) {
if (up) {
result += MIN_PAGE_SIZE;
}
return(result);
# else /* ECOS */
abort();
# endif /* ECOS */
} else {
result -= MIN_PAGE_SIZE;
}
GC_noop1((word)(*result));
}
}
GC_reset_fault_handler();
if (!up) {
result += MIN_PAGE_SIZE;
}
return(result);
}
# endif
# ifndef ECOS
# if defined(ECOS) || defined(NOSYS)
ptr_t GC_get_stack_base()
{
return STACKBOTTOM;
}
#else
#ifdef LINUX_STACKBOTTOM
@ -761,7 +760,7 @@ ptr_t GC_get_stack_base()
#endif /* FREEBSD_STACKBOTTOM */
#if !defined(BEOS) && !defined(AMIGA) && !defined(MSWIN32) \
&& !defined(MSWINCE) && !defined(OS2) && !defined(ECOS)
&& !defined(MSWINCE) && !defined(OS2)
ptr_t GC_get_stack_base()
{
@ -815,7 +814,7 @@ ptr_t GC_get_stack_base()
return(result);
# endif /* STACKBOTTOM */
}
# endif /* ECOS */
# endif /* NOSYS ECOS */
# endif /* ! AMIGA, !OS 2, ! MS Windows, !BEOS */