Initial revision

1 files changed, 176 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/i386/bits/setjmp.h b/libc/sysdeps/linux/i386/bits/setjmp.h
new file mode 100644
index 000000000..20786d642
--- /dev/null
+++ b/libc/sysdeps/linux/i386/bits/setjmp.h
@@ -0,0 +1,176 @@
+#if defined(__arm__) || defined(__thumb__)
+/*
+ * All callee preserved registers:
+ * v1 - v7, fp, ip, sp, lr, f4, f5, f6, f7
+ */
+#define _JBLEN 23
+#endif
+
+#ifdef __sparc__
+/*
+ * onsstack,sigmask,sp,pc,npc,psr,g1,o0,wbcnt (sigcontext).
+ * All else recovered by under/over(flow) handling.
+ */
+#define	_JBLEN	13
+#endif
+
+/* necv70 was 9 as well. */
+
+#ifdef __mc68000__
+/*
+ * onsstack,sigmask,sp,pc,psl,d2-d7,a2-a6,
+ * fp2-fp7	for 68881.
+ * All else recovered by under/over(flow) handling.
+ */
+#define	_JBLEN	34
+#endif
+
+#if defined(__Z8001__) || defined(__Z8002__)
+/* 16 regs + pc */
+#define _JBLEN 20
+#endif
+
+#ifdef _AM29K
+/*
+ * onsstack,sigmask,sp,pc,npc,psr,g1,o0,wbcnt (sigcontext).
+ * All else recovered by under/over(flow) handling.
+ */
+#define	_JBLEN	9
+#endif
+
+#ifdef __i386__
+#ifdef __unix__
+# define _JBLEN	36
+#elif defined(_WIN32)
+#define _JBLEN (13 * 4)
+#else
+#include "setjmp-dj.h"
+#endif
+#endif
+
+#ifdef __i960__
+#define _JBLEN 35
+#endif
+
+#ifdef __M32R__
+/* Only 8 words are currently needed.  10 gives us some slop if we need
+   to expand.  */
+#define _JBLEN 10
+#endif
+
+#ifdef __mips__
+#define _JBLEN 11
+#endif
+
+#ifdef __m88000__
+#define _JBLEN 21
+#endif
+
+#ifdef __H8300__
+#define _JBLEN 5
+typedef int jmp_buf[_JBLEN];
+#endif
+
+#ifdef __H8300H__
+/* same as H8/300 but registers are twice as big */
+#define _JBLEN 5
+#define _JBTYPE long
+#endif
+
+#ifdef __H8300S__
+/* same as H8/300 but registers are twice as big */
+#define _JBLEN 5
+#define _JBTYPE long
+#endif
+
+#ifdef __H8500__
+#define _JBLEN 4
+#endif
+
+#ifdef  __sh__
+#define _JBLEN 20
+#endif
+
+#ifdef  __v800
+#define _JBLEN 28
+#endif
+
+#ifdef __PPC__
+#define _JBLEN 32
+#define _JBTYPE double
+#endif
+
+#ifdef __hppa__
+/* %r30, %r2-%r18, %r27, pad, %fr12-%fr15.
+   Note space exists for the FP registers, but they are not
+   saved.  */
+#define _JBLEN 28
+#endif
+
+#if defined(mn10300) || defined(mn10200)
+/* A guess */
+#define _JBLEN 10
+#endif
+
+#ifdef __v850
+/* I think our setjmp is saving 15 regs at the moment.  Gives us one word
+   slop if we need to expand.  */
+#define _JBLEN 16
+#endif
+
+
+#ifdef __D10V__
+#define _JBLEN 8
+#endif
+
+/* start-sanitize-d30v */
+#ifdef __D30V__
+#define _JBLEN (64 /* GPR */ + (2*2) /* ACs */ + 18 /* CRs */)
+#endif
+/* end-sanitize-d30v */
+
+#ifdef _JBLEN
+#ifdef _JBTYPE
+typedef	_JBTYPE jmp_buf[_JBLEN];
+#else
+typedef	int jmp_buf[_JBLEN];
+#endif
+
+#ifdef __CYGWIN32__
+#include <signal.h>
+
+/* POSIX sigsetjmp/siglongjmp macros */
+typedef int sigjmp_buf[_JBLEN+2];
+
+#define _SAVEMASK	_JBLEN
+#define _SIGMASK	(_JBLEN+1)
+
+#define sigsetjmp(env, savemask) (env[_SAVEMASK] = savemask,\
+               sigprocmask (SIG_SETMASK, 0, (sigset_t *) &env[_SIGMASK]),\
+               setjmp (env))
+
+#define siglongjmp(env, val) (((env[_SAVEMASK])?\
+               sigprocmask (SIG_SETMASK, (sigset_t *) &env[_SIGMASK], 0):0),\
+               longjmp (env, val))
+
+#endif /* __CYGWIN32__*/
+
+#if defined(__linux__) && defined(__mc68000__)
+#include <signal.h>
+
+/* POSIX sigsetjmp/siglongjmp macros */
+typedef int sigjmp_buf[_JBLEN];
+
+#define _SAVEMASK	4
+#define _SIGMASK	1
+
+#define sigsetjmp(env, savemask) (env[_SAVEMASK] = savemask,\
+               sigprocmask (SIG_SETMASK, 0, (sigset_t *) &env[_SIGMASK]),\
+               setjmp (env))
+
+#define siglongjmp(env, val) (((env[_SAVEMASK])?\
+               sigprocmask (SIG_SETMASK, (sigset_t *) &env[_SIGMASK], 0):0),\
+               longjmp (env, val))
+
+#endif /* __linux__*/
+#endif