*/
\f
#define LANGUAGE_ASSEMBLY
-#include "validate.h"
#include "sbcl.h"
-
-/* Minimize conditionalization for different OS naming schemes. */
-#if defined __linux__ || defined __FreeBSD__ /* (but *not* OpenBSD) */
+#include "validate.h"
+#include "genesis/closure.h"
+#include "genesis/fdefn.h"
+#include "genesis/static-symbols.h"
+#include "genesis/symbol.h"
+#include "genesis/thread.h"
+
+/* Minimize conditionalization for different OS naming schemes.
+ *
+ * (As of sbcl-0.8.10, this seems no longer to be much of an issue,
+ * since everyone has converged on ELF. If this generality really
+ * turns out not to matter, perhaps it's just clutter we could get
+ * rid of? -- WHN 2004-04-18)
+ */
+#if defined __linux__ || defined __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ || defined __sun
#define GNAME(var) var
#else
#define GNAME(var) _##var
#endif
-/* Get the right type of alignment. Linux and FreeBSD (but not OpenBSD)
- * want alignment in bytes. */
-#if defined(__linux__) || defined(__FreeBSD__)
+/* Get the right type of alignment. Linux, FreeBSD and NetBSD (but not OpenBSD)
+ * want alignment in bytes.
+ *
+ * (As in the GNAME() definitions above, as of sbcl-0.8.10, this seems
+ * no longer to be much of an issue, since everyone has converged on
+ * the same value. If this generality really turns out not to
+ * matter any more, perhaps it's just clutter we could get
+ * rid of? -- WHN 2004-04-18)
+ */
+#if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__sun)
#define align_4byte 4
#define align_8byte 8
#define align_16byte 16
.text
.global GNAME(foreign_function_call_active)
-
+ .global GNAME(all_threads)
\f
/*
* A call to call_into_c preserves esi, edi, and ebp.
\f
.text
+ .global GNAME(call_into_lisp_first_time)
+ .type GNAME(call_into_lisp_first_time),@function
+
+/* The *ALIEN-STACK* pointer is set up on the first call_into_lisp when
+ * the stack changes. We don't worry too much about saving registers
+ * here, because we never expect to return from the initial call to lisp
+ * anyway */
+
+ .align align_16byte,0x90
+GNAME(call_into_lisp_first_time):
+ pushl %ebp # Save old frame pointer.
+ movl %esp,%ebp # Establish new frame.
+ movl %esp,ALIEN_STACK + SYMBOL_VALUE_OFFSET
+ movl GNAME(all_threads),%eax
+ movl THREAD_CONTROL_STACK_START_OFFSET(%eax) ,%esp
+ /* don't think too hard about what happens if we get interrupted
+ * here */
+ addl $THREAD_CONTROL_STACK_SIZE-4,%esp
+ jmp Lstack
+\f
+ .text
.global GNAME(call_into_lisp)
.type GNAME(call_into_lisp),@function
/* The C conventions require that ebx, esi, edi, and ebp be preserved
* across function calls. */
-/* The *ALIEN-STACK* pointer is set up on the first call_into_lisp when
- * the stack changes. */
.align align_16byte,0x90
GNAME(call_into_lisp):
pushl %ebp # Save old frame pointer.
movl %esp,%ebp # Establish new frame.
-
+Lstack:
/* Save the NPX state */
fwait # Catch any pending NPX exceptions.
subl $108,%esp # Make room for the NPX state.
- fnsave (%esp) # resets NPX
+ fnsave (%esp) # save and reset NPX
movl (%esp),%eax # Load NPX control word.
- andl $0xfffff3ff,%eax # Set rounding mode to nearest.
- orl $0x00000300,%eax # Set precision to 64 bits.
+ andl $0xfffff2ff,%eax # Set rounding mode to nearest.
+ orl $0x00000200,%eax # Set precision to 64 bits. (53-bit mantissa)
pushl %eax
fldcw (%esp) # Recover modes.
popl %eax
movl %eax, GNAME(foreign_function_call_active)
movl %esp,%ebx # remember current stack
- cmpl $CONTROL_STACK_START,%esp
- jbe ChangeToLispStack
- cmpl $CONTROL_STACK_END,%esp
- jbe OnLispStack
-ChangeToLispStack:
- /* Setup the *alien-stack* pointer */
- movl %esp,ALIEN_STACK + SYMBOL_VALUE_OFFSET
- movl $CONTROL_STACK_END,%esp # new stack
-OnLispStack:
pushl %ebx # Save entry stack on (maybe) new stack.
/* Establish Lisp args. */
sub $8,%esp # Ensure 3 slots are allocated, one above.
mov %ebx,%ebp # Switch to new frame.
- /* Indirect the closure. */
call *CLOSURE_FUN_OFFSET(%eax)
- /* Multi-value return; blow off any extra values. */
+ /* If the function returned multiple values, it will return to
+ this point. Lose them */
mov %ebx, %esp
- /* single value return */
+ /* A singled value function returns here */
/* Restore the stack, in case there was a stack change. */
popl %esp # c-sp
.align align_4byte,0x90
.global GNAME(undefined_tramp)
.type GNAME(undefined_tramp),@function
+ .byte 0, 0, 0, SIMPLE_FUN_HEADER_WIDETAG
GNAME(undefined_tramp):
int3
.byte trap_Error
.align align_4byte,0x90
.global GNAME(closure_tramp)
.type GNAME(closure_tramp),@function
+ .byte 0, 0, 0, SIMPLE_FUN_HEADER_WIDETAG
GNAME(closure_tramp):
movl FDEFN_FUN_OFFSET(%eax),%eax
/* FIXME: The '*' after "jmp" in the next line is from PVE's
ret
.size GNAME(do_pending_interrupt),.-GNAME(do_pending_interrupt)
\f
-#ifdef LISP_FEATURE_GENCGC
-/* This is a fast bzero using the FPU. The first argument is the start
- * address which needs to be aligned on an 8 byte boundary, the second
- * argument is the number of bytes, which must be a nonzero multiple
- * of 8 bytes. */
-/* FIXME whether this is still faster than using the OS's bzero or
- * equivalent, we don't know */
- .text
- .globl GNAME(i586_bzero)
- .type GNAME(i586_bzero),@function
- .align align_4byte,0x90
-GNAME(i586_bzero):
- movl 4(%esp),%edx # Load the start address.
- movl 8(%esp),%eax # Load the number of bytes.
- fldz
-l1: fstl 0(%edx)
- addl $8,%edx
- subl $8,%eax
- jnz l1
- fstp %st(0)
- ret
- .size GNAME(i586_bzero),.-GNAME(i586_bzero)
-#endif
-\f
/*
* Allocate bytes and return the start of the allocated space
popl %eax
ret
.size GNAME(alloc_16_to_edi),.-GNAME(alloc_16_to_edi)
-
-
-\f
-#ifdef LISP_FEATURE_GENCGC
-/* These routines are called from Lisp when an inline allocation
- * overflows. Every register except the result needs to be preserved.
- * We depend on C to preserve ebx, esi, edi, and ebp.
- * But where necessary must save eax, ecx, edx. */
+
+/* Called from lisp when an inline allocation overflows.
+ Every register except the result needs to be preserved.
+ We depend on C to preserve ebx, esi, edi, and ebp.
+ But where necessary must save eax, ecx, edx. */
+#ifdef LISP_FEATURE_SB_THREAD
+#define START_REGION %fs:THREAD_ALLOC_REGION_OFFSET
+#else
+#define START_REGION boxed_region
+#endif
+
/* This routine handles an overflow with eax=crfp+size. So the
- * size=eax-crfp. */
- .align align_4byte
- .globl GNAME(alloc_overflow_eax)
- .type GNAME(alloc_overflow_eax),@function
+ size=eax-crfp. */
+ .align align_4byte
+ .globl GNAME(alloc_overflow_eax)
+ .type GNAME(alloc_overflow_eax),@function
GNAME(alloc_overflow_eax):
- pushl %ecx # Save ecx
- pushl %edx # Save edx
- /* Calculate the size for the allocation. */
- subl GNAME(current_region_free_pointer),%eax
- pushl %eax # Push the size
- call GNAME(alloc)
- addl $4,%esp # pop the size arg.
- popl %edx # Restore edx.
- popl %ecx # Restore ecx.
- addl $6,(%esp) # Adjust the return address to skip the next inst.
- ret
- .size GNAME(alloc_overflow_eax),.-GNAME(alloc_overflow_eax)
-
-/* This routine handles an overflow with ecx=crfp+size. So the
- * size=ecx-crfp. */
- .align align_4byte
- .globl GNAME(alloc_overflow_ecx)
- .type GNAME(alloc_overflow_ecx),@function
+ pushl %ecx # Save ecx
+ pushl %edx # Save edx
+ /* Calculate the size for the allocation. */
+ subl START_REGION,%eax
+ pushl %eax # Push the size
+ call GNAME(alloc)
+ addl $4,%esp # pop the size arg.
+ popl %edx # Restore edx.
+ popl %ecx # Restore ecx.
+ ret
+ .size GNAME(alloc_overflow_eax),.-GNAME(alloc_overflow_eax)
+
+ .align align_4byte
+ .globl GNAME(alloc_overflow_ecx)
+ .type GNAME(alloc_overflow_ecx),@function
GNAME(alloc_overflow_ecx):
- pushl %eax # Save eax
- pushl %edx # Save edx
- /* Calculate the size for the allocation. */
- subl GNAME(current_region_free_pointer),%ecx
- pushl %ecx # Push the size
- call GNAME(alloc)
- addl $4,%esp # pop the size arg.
- movl %eax,%ecx # setup the destination.
- popl %edx # Restore edx.
- popl %eax # Restore eax.
- addl $6,(%esp) # Adjust the return address to skip the next inst.
- ret
- .size GNAME(alloc_overflow_ecx),.-GNAME(alloc_overflow_ecx)
-
-/* This routine handles an overflow with edx=crfp+size. So the
- * size=edx-crfp. */
- .align align_4byte
- .globl GNAME(alloc_overflow_edx)
- .type GNAME(alloc_overflow_edx),@function
+ pushl %eax # Save eax
+ pushl %edx # Save edx
+ /* Calculate the size for the allocation. */
+ subl START_REGION,%ecx
+ pushl %ecx # Push the size
+ call GNAME(alloc)
+ addl $4,%esp # pop the size arg.
+ movl %eax,%ecx # setup the destination.
+ popl %edx # Restore edx.
+ popl %eax # Restore eax.
+ ret
+ .size GNAME(alloc_overflow_ecx),.-GNAME(alloc_overflow_ecx)
+
+ .align align_4byte
+ .globl GNAME(alloc_overflow_edx)
+ .type GNAME(alloc_overflow_edx),@function
GNAME(alloc_overflow_edx):
- pushl %eax # Save eax
- pushl %ecx # Save ecx
- /* Calculate the size for the allocation. */
- subl GNAME(current_region_free_pointer),%edx
- pushl %edx # Push the size
- call GNAME(alloc)
- addl $4,%esp # pop the size arg.
- movl %eax,%edx # setup the destination.
- popl %ecx # Restore ecx.
- popl %eax # Restore eax.
- addl $6,(%esp) # Adjust the return address to skip the next inst.
- ret
- .size GNAME(alloc_overflow_edx),.-GNAME(alloc_overflow_edx)
+ pushl %eax # Save eax
+ pushl %ecx # Save ecx
+ /* Calculate the size for the allocation. */
+ subl START_REGION,%edx
+ pushl %edx # Push the size
+ call GNAME(alloc)
+ addl $4,%esp # pop the size arg.
+ movl %eax,%edx # setup the destination.
+ popl %ecx # Restore ecx.
+ popl %eax # Restore eax.
+ ret
+ .size GNAME(alloc_overflow_edx),.-GNAME(alloc_overflow_edx)
/* This routine handles an overflow with ebx=crfp+size. So the
- * size=ebx-crfp. */
- .align align_4byte
- .globl GNAME(alloc_overflow_ebx)
- .type GNAME(alloc_overflow_ebx),@function
+ size=ebx-crfp. */
+ .align align_4byte
+ .globl GNAME(alloc_overflow_ebx)
+ .type GNAME(alloc_overflow_ebx),@function
GNAME(alloc_overflow_ebx):
- pushl %eax # Save eax
- pushl %ecx # Save ecx
- pushl %edx # Save edx
- /* Calculate the size for the allocation. */
- subl GNAME(current_region_free_pointer),%ebx
- pushl %ebx # Push the size
- call GNAME(alloc)
- addl $4,%esp # pop the size arg.
- movl %eax,%ebx # setup the destination.
- popl %edx # Restore edx.
- popl %ecx # Restore ecx.
- popl %eax # Restore eax.
- addl $6,(%esp) # Adjust the return address to skip the next inst.
- ret
- .size GNAME(alloc_overflow_ebx),.-GNAME(alloc_overflow_ebx)
+ pushl %eax # Save eax
+ pushl %ecx # Save ecx
+ pushl %edx # Save edx
+ /* Calculate the size for the allocation. */
+ subl START_REGION,%ebx
+ pushl %ebx # Push the size
+ call GNAME(alloc)
+ addl $4,%esp # pop the size arg.
+ movl %eax,%ebx # setup the destination.
+ popl %edx # Restore edx.
+ popl %ecx # Restore ecx.
+ popl %eax # Restore eax.
+ ret
+ .size GNAME(alloc_overflow_ebx),.-GNAME(alloc_overflow_ebx)
/* This routine handles an overflow with esi=crfp+size. So the
- * size=esi-crfp. */
- .align align_4byte
- .globl GNAME(alloc_overflow_esi)
- .type GNAME(alloc_overflow_esi),@function
+ size=esi-crfp. */
+ .align align_4byte
+ .globl GNAME(alloc_overflow_esi)
+ .type GNAME(alloc_overflow_esi),@function
GNAME(alloc_overflow_esi):
- pushl %eax # Save eax
- pushl %ecx # Save ecx
- pushl %edx # Save edx
- /* Calculate the size for the allocation. */
- subl GNAME(current_region_free_pointer),%esi
- pushl %esi # Push the size
- call GNAME(alloc)
- addl $4,%esp # pop the size arg.
- movl %eax,%esi # setup the destination.
- popl %edx # Restore edx.
- popl %ecx # Restore ecx.
- popl %eax # Restore eax.
- addl $6,(%esp) # Adjust the return address to skip the next inst.
- ret
- .size GNAME(alloc_overflow_esi),.-GNAME(alloc_overflow_esi)
-
-/* This routine handles an overflow with edi=crfp+size. So the
- * size=edi-crfp. */
- .align align_4byte
- .globl GNAME(alloc_overflow_edi)
- .type GNAME(alloc_overflow_edi),@function
+ pushl %eax # Save eax
+ pushl %ecx # Save ecx
+ pushl %edx # Save edx
+ /* Calculate the size for the allocation. */
+ subl START_REGION,%esi
+ pushl %esi # Push the size
+ call GNAME(alloc)
+ addl $4,%esp # pop the size arg.
+ movl %eax,%esi # setup the destination.
+ popl %edx # Restore edx.
+ popl %ecx # Restore ecx.
+ popl %eax # Restore eax.
+ ret
+ .size GNAME(alloc_overflow_esi),.-GNAME(alloc_overflow_esi)
+
+ .align align_4byte
+ .globl GNAME(alloc_overflow_edi)
+ .type GNAME(alloc_overflow_edi),@function
GNAME(alloc_overflow_edi):
- pushl %eax # Save eax
- pushl %ecx # Save ecx
- pushl %edx # Save edx
- /* Calculate the size for the allocation. */
- subl GNAME(current_region_free_pointer),%edi
- pushl %edi # Push the size
- call GNAME(alloc)
- addl $4,%esp # pop the size arg.
- movl %eax,%edi # setup the destination.
- popl %edx # Restore edx.
- popl %ecx # Restore ecx.
- popl %eax # Restore eax.
- addl $6,(%esp) # Adjust the return address to skip the next inst.
- ret
- .size GNAME(alloc_overflow_edi),.-GNAME(alloc_overflow_edi)
+ pushl %eax # Save eax
+ pushl %ecx # Save ecx
+ pushl %edx # Save edx
+ /* Calculate the size for the allocation. */
+ subl START_REGION,%edi
+ pushl %edi # Push the size
+ call GNAME(alloc)
+ addl $4,%esp # pop the size arg.
+ movl %eax,%edi # setup the destination.
+ popl %edx # Restore edx.
+ popl %ecx # Restore ecx.
+ popl %eax # Restore eax.
+ ret
+ .size GNAME(alloc_overflow_edi),.-GNAME(alloc_overflow_edi)
-#endif
+ .align align_4byte,0x90
+ .globl GNAME(post_signal_tramp)
+ .type GNAME(post_signal_tramp),@function
+GNAME(post_signal_tramp):
+ /* this is notionally the second half of a function whose first half
+ * doesn't exist. This is where call_into_lisp returns when called
+ * using return_to_lisp_function */
+ addl $12,%esp /* clear call_into_lisp args from stack */
+ popal /* restore registers */
+ popfl
+ leave
+ ret
+ .size GNAME(post_signal_tramp),.-GNAME(post_signal_tramp)
+
.end
projects / sbcl.git / blobdiff