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Mark setjmp and ucontext functions as non-leaf
This commit is contained in:
Andreas Schwab
parent
77cdc054e0
commit
edc5984d4d
@ -1,3 +1,10 @@
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2011-11-11 Andreas Schwab <schwab@redhat.com>
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* misc/sys/cdefs.h (__REDIRECT_NTHNL): Define.
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* setjmp/setjmp.h: Mark functions as non-leaf.
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* setjmp/bits/setjmp2.h: Likewise.
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* stdlib/ucontext.h: Likewise.
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2011-11-10 Andreas Schwab <schwab@redhat.com>
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* malloc/arena.c (_int_new_arena): Don't increment narenas.
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@ -192,9 +192,13 @@
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# ifdef __cplusplus
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# define __REDIRECT_NTH(name, proto, alias) \
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name proto __THROW __asm__ (__ASMNAME (#alias))
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# define __REDIRECT_NTHNL(name, proto, alias) \
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name proto __THROWNL __asm__ (__ASMNAME (#alias))
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# else
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# define __REDIRECT_NTH(name, proto, alias) \
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name proto __asm__ (__ASMNAME (#alias)) __THROW
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# define __REDIRECT_NTHNL(name, proto, alias) \
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name proto __asm__ (__ASMNAME (#alias)) __THROWNL
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# endif
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# define __ASMNAME(cname) __ASMNAME2 (__USER_LABEL_PREFIX__, cname)
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# define __ASMNAME2(prefix, cname) __STRING (prefix) cname
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@ -1,5 +1,5 @@
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/* Checking macros for setjmp functions.
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Copyright (C) 2009 Free Software Foundation, Inc.
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Copyright (C) 2009, 2011 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -23,18 +23,18 @@
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/* Variant of the longjmp functions which perform some sanity checking. */
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#ifdef __REDIRECT_NTH
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extern void __REDIRECT_NTH (longjmp,
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(struct __jmp_buf_tag __env[1], int __val),
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__longjmp_chk) __attribute__ ((__noreturn__));
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extern void __REDIRECT_NTH (_longjmp,
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(struct __jmp_buf_tag __env[1], int __val),
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__longjmp_chk) __attribute__ ((__noreturn__));
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extern void __REDIRECT_NTH (siglongjmp,
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(struct __jmp_buf_tag __env[1], int __val),
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__longjmp_chk) __attribute__ ((__noreturn__));
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extern void __REDIRECT_NTHNL (longjmp,
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(struct __jmp_buf_tag __env[1], int __val),
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__longjmp_chk) __attribute__ ((__noreturn__));
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extern void __REDIRECT_NTHNL (_longjmp,
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(struct __jmp_buf_tag __env[1], int __val),
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__longjmp_chk) __attribute__ ((__noreturn__));
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extern void __REDIRECT_NTHNL (siglongjmp,
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(struct __jmp_buf_tag __env[1], int __val),
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__longjmp_chk) __attribute__ ((__noreturn__));
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#else
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extern void __longjmp_chk (struct __jmp_buf_tag __env[1], int __val),
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__THROW __attribute__ ((__noreturn__));
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__THROWNL __attribute__ ((__noreturn__));
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# define longjmp __longjmp_chk
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# define _longjmp __longjmp_chk
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# define siglongjmp __longjmp_chk
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@ -1,4 +1,4 @@
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/* Copyright (C) 1991-1999,2001,2002,2007,2009 Free Software Foundation, Inc.
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/* Copyright (C) 1991-1999,2001,2002,2007,2009,2011 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -50,19 +50,19 @@ typedef struct __jmp_buf_tag jmp_buf[1];
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/* Store the calling environment in ENV, also saving the signal mask.
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Return 0. */
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extern int setjmp (jmp_buf __env) __THROW;
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extern int setjmp (jmp_buf __env) __THROWNL;
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__END_NAMESPACE_STD
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/* Store the calling environment in ENV, also saving the
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signal mask if SAVEMASK is nonzero. Return 0.
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This is the internal name for `sigsetjmp'. */
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extern int __sigsetjmp (struct __jmp_buf_tag __env[1], int __savemask) __THROW;
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extern int __sigsetjmp (struct __jmp_buf_tag __env[1], int __savemask) __THROWNL;
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#ifndef __FAVOR_BSD
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/* Store the calling environment in ENV, not saving the signal mask.
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Return 0. */
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extern int _setjmp (struct __jmp_buf_tag __env[1]) __THROW;
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extern int _setjmp (struct __jmp_buf_tag __env[1]) __THROWNL;
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/* Do not save the signal mask. This is equivalent to the `_setjmp'
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BSD function. */
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@ -80,7 +80,7 @@ __BEGIN_NAMESPACE_STD
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/* Jump to the environment saved in ENV, making the
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`setjmp' call there return VAL, or 1 if VAL is 0. */
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extern void longjmp (struct __jmp_buf_tag __env[1], int __val)
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__THROW __attribute__ ((__noreturn__));
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__THROWNL __attribute__ ((__noreturn__));
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__END_NAMESPACE_STD
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@ -89,7 +89,7 @@ __END_NAMESPACE_STD
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the signal mask. But it is how ENV was saved that determines whether
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`longjmp' restores the mask; `_longjmp' is just an alias. */
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extern void _longjmp (struct __jmp_buf_tag __env[1], int __val)
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__THROW __attribute__ ((__noreturn__));
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__THROWNL __attribute__ ((__noreturn__));
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#endif
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@ -108,7 +108,7 @@ typedef struct __jmp_buf_tag sigjmp_buf[1];
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Restore the signal mask if that sigsetjmp call saved it.
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This is just an alias `longjmp'. */
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extern void siglongjmp (sigjmp_buf __env, int __val)
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__THROW __attribute__ ((__noreturn__));
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__THROWNL __attribute__ ((__noreturn__));
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#endif /* Use POSIX. */
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@ -1,4 +1,4 @@
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/* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
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/* Copyright (C) 1997, 1998, 1999, 2000, 2011 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -29,15 +29,15 @@
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__BEGIN_DECLS
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/* Get user context and store it in variable pointed to by UCP. */
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extern int getcontext (ucontext_t *__ucp) __THROW;
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extern int getcontext (ucontext_t *__ucp) __THROWNL;
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/* Set user context from information of variable pointed to by UCP. */
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extern int setcontext (__const ucontext_t *__ucp) __THROW;
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extern int setcontext (__const ucontext_t *__ucp) __THROWNL;
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/* Save current context in context variable pointed to by OUCP and set
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context from variable pointed to by UCP. */
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extern int swapcontext (ucontext_t *__restrict __oucp,
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__const ucontext_t *__restrict __ucp) __THROW;
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__const ucontext_t *__restrict __ucp) __THROWNL;
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/* Manipulate user context UCP to continue with calling functions FUNC
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and the ARGC-1 parameters following ARGC when the context is used
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@ -46,7 +46,7 @@ extern int swapcontext (ucontext_t *__restrict __oucp,
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We cannot say anything about the parameters FUNC takes; `void'
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is as good as any other choice. */
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extern void makecontext (ucontext_t *__ucp, void (*__func) (void),
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int __argc, ...) __THROW;
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int __argc, ...) __THROWNL;
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__END_DECLS
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