From 139904b7e454b1232dc7807dd613682d107daab1 Mon Sep 17 00:00:00 2001
From: Joseph Myers <joseph@codesourcery.com>
Date: Thu, 1 Jun 2017 14:07:40 +0000
Subject: Fix more namespace issues in sys/ucontext.h (bug 21457).
Continuing the fixes for namespace issues in sys/ucontext.h, this
patch moves various symbols into the implementation namespace in the
absence of __USE_MISC. As with previous changes, it is nonexhaustive,
just covering more straightforward cases.
Structure fields are generally changed to have a prefix __ in the
absence of __USE_MISC, via a macro __ctx (used without a space before
the open parenthesis, since the result is a single identifier).
Various macros such as NGREG also have leading __ added. No changes
are made to structure tags (and thus to C++ name mangling), except
that in the (unused) file sysdeps/i386/sys/ucontext.h, structures
defined inside other structures as the type for a field have their
tags removed in the non-__USE_MISC case (those structure tags would
not in any case have been visible in C++, because in C++ the scope of
such a tag is limited to the containing structure). No changes are
made to the contents of bits/sigcontext.h, or to whether it is
included. Because of remaining namespace issues, this patch does not
yet fix the bug or allow any XFAILs to be removed.
Tested for x86_64 and x86, and with build-many-glibcs.py.
[BZ #21457]
* sysdeps/arm/sys/ucontext.h (NGREG): Rename to __NGREG and define
NGREG to __NGREG if [__USE_MISC].
(gregset_t): Define using __NGREG.
(__ctx): New macro.
(mcontext_t): Use __ctx in defining fields.
* sysdeps/i386/sys/ucontext.h (NGREG): Rename to __NGREG and
define NGREG to __NGREG if [__USE_MISC].
(gregset_t): Define using __NGREG.
(__ctx): New macro.
(__ctxt): Likewise.
(fpregset_t): Use __ctx and __ctxt in defining fields.
(mcontext_t): Likewise.
* sysdeps/m68k/sys/ucontext.h (NGREG): Rename to __NGREG and
define NGREG to __NGREG if [__USE_MISC].
(gregset_t): Define using __NGREG.
(__ctx): New macro.
(mcontext_t): Use __ctx in defining fields.
* sysdeps/mips/sys/ucontext.h (NGREG): Rename to __NGREG and
define NGREG to __NGREG if [__USE_MISC].
(gregset_t): Define using __NGREG.
(__ctx): New macro.
(fpregset_t): Use __ctx in defining fields.
(mcontext_t): Likewise.
* sysdeps/unix/sysv/linux/alpha/sys/ucontext.h (NGREG): Rename to
__NGREG and define NGREG to __NGREG if [__USE_MISC].
(gregset_t): Define using __NGREG.
(NFPREG): Rename to __NFPREG and define NFPREG to __NFPREG if
[__USE_MISC].
(fpregset_t): Define using __NFPREG.
* sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (NGREG): Rename to
__NGREG and define NGREG to __NGREG if [__USE_MISC].
(gregset_t): Define using __NGREG.
(__ctx): New macro.
(fpregset_t): Use __ctx in defining fields.
(mcontext_t): Likewise.
* sysdeps/unix/sysv/linux/mips/sys/ucontext.h (NGREG): Rename to
__NGREG and define NGREG to __NGREG if [__USE_MISC].
(NFPREG): Rename to __NFPREG and define NFPREG to __NFPREG if
[__USE_MISC].
(gregset_t): Define using __NGREG.
(__ctx): New macro.
(fpregset_t): Use __ctx in defining fields.
(mcontext_t): Likewise.
* sysdeps/unix/sysv/linux/nios2/sys/ucontext.h (__ctx): New macro.
(mcontext_t): Use __ctx in defining fields.
* sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h (__ctx): New
macro.
[__WORDSIZE == 32] (NGREG): Rename to __NGREG and define NGREG to
__NGREG if [__USE_MISC].
[__WORDSIZE == 32] (gregset_t): Define using __NGREG.
[__WORDSIZE == 32] (fpregset_t): Use __ctx in defining fields.
(mcontext_t): Likewise.
[__WORDSIZE != 32] (NGREG): Rename to __NGREG and define NGREG to
__NGREG if [__USE_MISC].
[__WORDSIZE != 32] (NFPREG): Rename to __NFPREG and define NFPREG
to __NFPREG if [__USE_MISC].
[__WORDSIZE != 32] (NVRREG): Rename to __NVRREG and define NVRREG
to __NVRREG if [__USE_MISC].
[__WORDSIZE != 32] (gregset_t): Define using __NGREG.
[__WORDSIZE != 32] (fpregset_t): Define using __NFPREG.
[__WORDSIZE != 32] (vscr_t): Use __ctx in defining fields.
[__WORDSIZE != 32] (vrregset_t): Likewise.
[__WORDSIZE != 32] (mcontext_t): Likewise.
* sysdeps/unix/sysv/linux/s390/sys/ucontext.h (__ctx): New macro.
(__psw_t): Use __ctx in defining fields.
(NGREG): Rename to __NGREG and define NGREG to __NGREG if
[__USE_MISC].
(gregset_t): Define using __NGREG.
(fpreg_t): Use __ctx in defining fields.
(fpregset_t): Likewise.
(mcontext_t): Likewise.
* sysdeps/unix/sysv/linux/sh/sys/ucontext.h (NGREG): Rename to
__NGREG and define NGREG to __NGREG if [__USE_MISC].
(gregset_t): Define using __NGREG.
(NFPREG): Rename to __NFPREG and define NFPREG to __NFPREG if
[__USE_MISC].
(fpregset_t): Define using __NFPREG.
(__ctx): New macro.
(mcontext_t): Use __ctx in defining fields.
* sysdeps/unix/sysv/linux/x86/sys/ucontext.h (__ctx): New macro.
[__x86_64__] (NGREG): Rename to __NGREG and define NGREG to
__NGREG if [__USE_MISC].
[__x86_64__] (gregset_t): Define using __NGREG.
[__x86_64__] (struct _libc_fpxreg): Use __ctx in defining fields.
[__x86_64__] (struct _libc_fpstate): Likewise.
[__x86_64__] (mcontext_t): Likewise.
[!__x86_64__] (NGREG): Rename to __NGREG and define NGREG to
__NGREG if [__USE_MISC].
[!__x86_64__] (gregset_t): Define using __NGREG.
[!__x86_64__] (struct _libc_fpreg): Use __ctx in defining fields.
[!__x86_64__] (struct _libc_fpstate): Likewise.
[!__x86_64__] (mcontext_t): Likewise.
---
sysdeps/unix/sysv/linux/mips/sys/ucontext.h | 88 ++++++++++++++++-------------
1 file changed, 50 insertions(+), 38 deletions(-)
(limited to 'sysdeps/unix/sysv/linux/mips/sys')
diff --git a/sysdeps/unix/sysv/linux/mips/sys/ucontext.h b/sysdeps/unix/sysv/linux/mips/sys/ucontext.h
index d15d85d..048e9a4 100644
--- a/sysdeps/unix/sysv/linux/mips/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/mips/sys/ucontext.h
@@ -33,21 +33,31 @@
__extension__ typedef unsigned long long int greg_t;
/* Number of general registers. */
-#define NGREG 32
-#define NFPREG 32
+#define __NGREG 32
+#define __NFPREG 32
+#ifdef __USE_MISC
+# define NGREG __NGREG
+# define NFPREG __NFPREG
+#endif
/* Container for all general registers. */
-typedef greg_t gregset_t[NGREG];
+typedef greg_t gregset_t[__NGREG];
+
+#ifdef __USE_MISC
+# define __ctx(fld) fld
+#else
+# define __ctx(fld) __ ## fld
+#endif
/* Container for all FPU registers. */
typedef struct fpregset {
union {
- double fp_dregs[NFPREG];
+ double __ctx(fp_dregs)[__NFPREG];
struct {
float _fp_fregs;
unsigned int _fp_pad;
- } fp_fregs[NFPREG];
- } fp_r;
+ } __ctx(fp_fregs)[__NFPREG];
+ } __ctx(fp_r);
} fpregset_t;
@@ -60,46 +70,48 @@ typedef struct fpregset {
still be rectified. */
typedef struct
{
- unsigned int regmask;
- unsigned int status;
- greg_t pc;
- gregset_t gregs;
- fpregset_t fpregs;
- unsigned int fp_owned;
- unsigned int fpc_csr;
- unsigned int fpc_eir;
- unsigned int used_math;
- unsigned int dsp;
- greg_t mdhi;
- greg_t mdlo;
- unsigned long hi1;
- unsigned long lo1;
- unsigned long hi2;
- unsigned long lo2;
- unsigned long hi3;
- unsigned long lo3;
+ unsigned int __ctx(regmask);
+ unsigned int __ctx(status);
+ greg_t __ctx(pc);
+ gregset_t __ctx(gregs);
+ fpregset_t __ctx(fpregs);
+ unsigned int __ctx(fp_owned);
+ unsigned int __ctx(fpc_csr);
+ unsigned int __ctx(fpc_eir);
+ unsigned int __ctx(used_math);
+ unsigned int __ctx(dsp);
+ greg_t __ctx(mdhi);
+ greg_t __ctx(mdlo);
+ unsigned long __ctx(hi1);
+ unsigned long __ctx(lo1);
+ unsigned long __ctx(hi2);
+ unsigned long __ctx(lo2);
+ unsigned long __ctx(hi3);
+ unsigned long __ctx(lo3);
} mcontext_t;
#else
typedef struct
{
- gregset_t gregs;
- fpregset_t fpregs;
- greg_t mdhi;
- greg_t hi1;
- greg_t hi2;
- greg_t hi3;
- greg_t mdlo;
- greg_t lo1;
- greg_t lo2;
- greg_t lo3;
- greg_t pc;
- unsigned int fpc_csr;
- unsigned int used_math;
- unsigned int dsp;
+ gregset_t __ctx(gregs);
+ fpregset_t __ctx(fpregs);
+ greg_t __ctx(mdhi);
+ greg_t __ctx(hi1);
+ greg_t __ctx(hi2);
+ greg_t __ctx(hi3);
+ greg_t __ctx(mdlo);
+ greg_t __ctx(lo1);
+ greg_t __ctx(lo2);
+ greg_t __ctx(lo3);
+ greg_t __ctx(pc);
+ unsigned int __ctx(fpc_csr);
+ unsigned int __ctx(used_math);
+ unsigned int __ctx(dsp);
unsigned int __glibc_reserved1;
} mcontext_t;
#endif
+#undef __ctx
+
/* Userlevel context. */
typedef struct ucontext
{
--
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