#include <gprof.h>
#endif /* _KERNEL */
-#ifdef MACH_KERNEL
-#include <mach_kdb.h>
-#else /* !MACH_KERNEL */
-#define MACH_KDB 0
-#endif /* !MACH_KERNEL */
-
-
#if defined(MACH_KERNEL) || defined(_KERNEL)
#include <gprof.h>
#endif /* MACH_KERNEL || _KERNEL */
+#if defined(__i386__)
-#define S_PC 0(%esp)
+#define S_PC (%esp)
#define S_ARG0 4(%esp)
#define S_ARG1 8(%esp)
#define S_ARG2 12(%esp)
#define S_ARG3 16(%esp)
+#define S_ARG4 20(%esp)
#define FRAME pushl %ebp; movl %esp, %ebp
#define EMARF leave
-#define B_LINK 0(%ebp)
+#define B_LINK (%ebp)
#define B_PC 4(%ebp)
#define B_ARG0 8(%ebp)
#define B_ARG1 12(%ebp)
#define B_ARG2 16(%ebp)
#define B_ARG3 20(%ebp)
+#elif defined(__x86_64__)
+
+#define S_PC (%rsp)
+
+#define FRAME pushq %rbp; movq %rsp, %rbp
+#define EMARF leave
+
+#define B_LINK (%rbp)
+#define B_PC 8(%rbp)
+
+#else
+#error unsupported architecture
+#endif
+
/* There is another definition of ALIGN for .c sources */
#ifdef ASSEMBLER
-#define ALIGN 2,0x90
+#define ALIGN 4,0x90
#endif /* ASSEMBLER */
#ifndef FALIGN
#define Lgmemload(lab,reg) movl Lgotoff(lab),reg
#define Lgmemstore(reg,lab,tmp) movl reg,Lgotoff(lab)
-#ifdef ASSEMBLER
-#if MACH_KDB
-#include <ddb/stab.h>
-/*
- * This pseudo-assembler line is added so that there will be at least
- * one N_SO entry in the symbol stable to define the current file name.
- */
-#endif /* MACH_KDB */
-
-#else /* NOT ASSEMBLER */
-
+#ifndef ASSEMBLER
/* These defines are here for .c files that wish to reference global symbols
* within __asm__ statements.
*/
#endif /* __NO_UNDERSCORES__ */
#endif /* ASSEMBLER */
+/*
+ * The following macros make calls into C code.
+ * They dynamically align the stack to 16 bytes.
+ */
+#if defined(__i386__)
+/*
+ * Arguments are moved (not pushed) onto the correctly aligned stack.
+ * NOTE: ESI is destroyed in the process, and hence cannot
+ * be directly used as a parameter. Users of this macro must
+ * independently preserve ESI (a non-volatile) if the routine is
+ * intended to be called from C, for instance.
+ */
+
+#define CCALL(fn) \
+ movl %esp, %esi ;\
+ andl $0xFFFFFFF0, %esp ;\
+ call EXT(fn) ;\
+ movl %esi, %esp
+
+#define CCALL1(fn, arg1) \
+ movl %esp, %esi ;\
+ subl $4, %esp ;\
+ andl $0xFFFFFFF0, %esp ;\
+ movl arg1, (%esp) ;\
+ call EXT(fn) ;\
+ movl %esi, %esp
+
+#define CCALL2(fn, arg1, arg2) \
+ movl %esp, %esi ;\
+ subl $8, %esp ;\
+ andl $0xFFFFFFF0, %esp ;\
+ movl arg2, 4(%esp) ;\
+ movl arg1, (%esp) ;\
+ call EXT(fn) ;\
+ movl %esi, %esp
+
+/* This variant exists to permit adjustment of the stack by "dtrace" */
+#define CCALL1WITHSP(fn, arg1) \
+ movl %esp, %esi ;\
+ subl $12, %esp ;\
+ andl $0xFFFFFFF0, %esp ;\
+ movl %esi, 8(%esp) ;\
+ leal 8(%esp), %esi ;\
+ movl %esi, 4(%esp) ;\
+ movl arg1, (%esp) ;\
+ call EXT(fn) ;\
+ movl 8(%esp), %esp
+
+/*
+ * CCALL5 is used for callee functions with 3 arguments but
+ * where arg2 (a3:a2) and arg3 (a5:a4) are 64-bit values.
+ */
+#define CCALL5(fn, a1, a2, a3, a4, a5) \
+ movl %esp, %esi ;\
+ subl $20, %esp ;\
+ andl $0xFFFFFFF0, %esp ;\
+ movl a5, 16(%esp) ;\
+ movl a4, 12(%esp) ;\
+ movl a3, 8(%esp) ;\
+ movl a2, 4(%esp) ;\
+ movl a1, (%esp) ;\
+ call EXT(fn) ;\
+ movl %esi, %esp
+
+#elif defined(__x86_64__)
+
+/* This variant exists to permit adjustment of the stack by "dtrace" */
+#define CCALLWITHSP(fn) \
+ mov %rsp, %r12 ;\
+ sub $8, %rsp ;\
+ and $0xFFFFFFFFFFFFFFF0, %rsp ;\
+ mov %r12, (%rsp) ;\
+ leaq (%rsp), %rsi ;\
+ call EXT(fn) ;\
+ mov (%rsp), %rsp
+
+#define CCALL(fn) \
+ mov %rsp, %r12 ;\
+ and $0xFFFFFFFFFFFFFFF0, %rsp ;\
+ call EXT(fn) ;\
+ mov %r12, %rsp
+
+#define CCALL1(fn, arg1) \
+ mov arg1, %rdi ;\
+ CCALL(fn)
+
+#define CCALL2(fn, arg1, arg2) \
+ mov arg1, %rdi ;\
+ mov arg2, %rsi ;\
+ CCALL(fn)
+
+#define CCALL3(fn, arg1, arg2, arg3) \
+ mov arg1, %rdi ;\
+ mov arg2, %rsi ;\
+ mov arg3, %rdx ;\
+ CCALL(fn)
+
+#else
+#error unsupported architecture
+#endif
+
#endif /* _I386_ASM_H_ */
projects / apple / xnu.git / blobdiff