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Fix more namespace issues in sys/ucontext.h (bug 21457)
- From: Joseph Myers <joseph at codesourcery dot com>
- To: <libc-alpha at sourceware dot org>
- Date: Tue, 16 May 2017 17:42:39 +0000
- Subject: Fix more namespace issues in sys/ucontext.h (bug 21457)
- Authentication-results: sourceware.org; auth=none
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.
2017-05-16 Joseph Myers <joseph@codesourcery.com>
[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.
diff --git a/sysdeps/arm/sys/ucontext.h b/sysdeps/arm/sys/ucontext.h
index 09fe418..a0b1194 100644
--- a/sysdeps/arm/sys/ucontext.h
+++ b/sysdeps/arm/sys/ucontext.h
@@ -32,10 +32,13 @@
typedef int greg_t;
/* Number of general registers. */
-#define NGREG 16
+#define __NGREG 16
+#ifdef __USE_MISC
+# define NGREG __NGREG
+#endif
/* Container for all general registers. */
-typedef greg_t gregset_t[NGREG];
+typedef greg_t gregset_t[__NGREG];
#ifdef __USE_MISC
/* Number of each register is the `gregset_t' array. */
@@ -76,6 +79,12 @@ enum
};
#endif
+#ifdef __USE_MISC
+# define __ctx(fld) fld
+#else
+# define __ctx(fld) __ ## fld
+#endif
+
/* Structure to describe FPU registers. */
typedef struct fpregset
{
@@ -84,10 +93,12 @@ typedef struct fpregset
/* Context to describe whole processor state. */
typedef struct
{
- gregset_t gregs;
- fpregset_t fpregs;
+ gregset_t __ctx(gregs);
+ fpregset_t __ctx(fpregs);
} mcontext_t;
+#undef __ctx
+
/* Userlevel context. */
typedef struct ucontext
{
diff --git a/sysdeps/i386/sys/ucontext.h b/sysdeps/i386/sys/ucontext.h
index c632e50..443dcf7 100644
--- a/sysdeps/i386/sys/ucontext.h
+++ b/sysdeps/i386/sys/ucontext.h
@@ -33,10 +33,13 @@
typedef int greg_t;
/* Number of general registers. */
-#define NGREG 19
+#define __NGREG 19
+#ifdef __USE_MISC
+# define NGREG __NGREG
+#endif
/* Container for all general registers. */
-typedef greg_t gregset_t[NGREG];
+typedef greg_t gregset_t[__NGREG];
#ifdef __USE_MISC
/* Number of each register is the `gregset_t' array. */
@@ -83,36 +86,47 @@ enum
};
#endif
+#ifdef __USE_MISC
+# define __ctx(fld) fld
+# define __ctxt(tag) tag
+#else
+# define __ctx(fld) __ ## fld
+# define __ctxt(tag) /* Empty. */
+#endif
+
/* Structure to describe FPU registers. */
typedef struct fpregset
{
union
{
- struct fpchip_state
+ struct __ctxt(fpchip_state)
{
- int state[27];
- int status;
- } fpchip_state;
+ int __ctx(state)[27];
+ int __ctx(status);
+ } __ctx(fpchip_state);
- struct fp_emul_space
+ struct __ctxt(fp_emul_space)
{
- char fp_emul[246];
- char fp_epad[2];
- } fp_emul_space;
+ char __ctx(fp_emul)[246];
+ char __ctx(fp_epad)[2];
+ } __ctx(fp_emul_space);
- int f_fpregs[62];
- } fp_reg_set;
+ int __ctx(f_fpregs)[62];
+ } __ctx(fp_reg_set);
- long int f_wregs[33];
+ long int __ctx(f_wregs)[33];
} fpregset_t;
/* Context to describe whole processor state. */
typedef struct
{
- gregset_t gregs;
- fpregset_t fpregs;
+ gregset_t __ctx(gregs);
+ fpregset_t __ctx(fpregs);
} mcontext_t;
+#undef __ctx
+#undef __ctxt
+
/* Userlevel context. */
typedef struct ucontext
{
diff --git a/sysdeps/m68k/sys/ucontext.h b/sysdeps/m68k/sys/ucontext.h
index cbec1db..6b6dc53 100644
--- a/sysdeps/m68k/sys/ucontext.h
+++ b/sysdeps/m68k/sys/ucontext.h
@@ -33,10 +33,13 @@
typedef int greg_t;
/* Number of general registers. */
-#define NGREG 18
+#define __NGREG 18
+#ifdef __USE_MISC
+# define NGREG __NGREG
+#endif
/* Container for all general registers. */
-typedef greg_t gregset_t[NGREG];
+typedef greg_t gregset_t[__NGREG];
#ifdef __USE_MISC
/* Number of each register is the `gregset_t' array. */
@@ -92,13 +95,21 @@ typedef struct fpregset
} fpregset_t;
#endif
+#ifdef __USE_MISC
+# define __ctx(fld) fld
+#else
+# define __ctx(fld) __ ## fld
+#endif
+
/* Context to describe whole processor state. */
typedef struct
{
- int version;
- gregset_t gregs;
+ int __ctx(version);
+ gregset_t __ctx(gregs);
} mcontext_t;
+#undef __ctx
+
#ifdef __USE_MISC
# define MCONTEXT_VERSION 1
#endif
diff --git a/sysdeps/mips/sys/ucontext.h b/sysdeps/mips/sys/ucontext.h
index 137246f..3a19b53 100644
--- a/sysdeps/mips/sys/ucontext.h
+++ b/sysdeps/mips/sys/ucontext.h
@@ -39,10 +39,13 @@ typedef __uint64_t greg_t;
#endif
/* Number of general registers. */
-#define NGREG 36
+#define __NGREG 36
+#ifdef __USE_MISC
+# define NGREG __NGREG
+#endif
/* Container for all general registers. */
-typedef greg_t gregset_t[NGREG];
+typedef greg_t gregset_t[__NGREG];
#ifdef __USE_MISC
/* Number of each register is the `gregset_t' array. */
@@ -123,32 +126,40 @@ enum
};
#endif
+#ifdef __USE_MISC
+# define __ctx(fld) fld
+#else
+# define __ctx(fld) __ ## fld
+#endif
+
/* Structure to describe FPU registers. */
typedef struct fpregset
{
union
{
#if _MIPS_SIM == _ABIO32
- double fp_dregs[16];
- float fp_fregs[32];
- unsigned int fp_regs[32];
+ double __ctx(fp_dregs)[16];
+ float __ctx(fp_fregs)[32];
+ unsigned int __ctx(fp_regs)[32];
#else
- double fp_dregs[32];
- /* float fp_fregs[32]; */
- __uint64_t fp_regs[32];
+ double __ctx(fp_dregs)[32];
+ /* float __ctx(fp_fregs)[32]; */
+ __uint64_t __ctx(fp_regs)[32];
#endif
- } fp_r;
- unsigned int fp_csr;
- unsigned int fp_pad;
+ } __ctx(fp_r);
+ unsigned int __ctx(fp_csr);
+ unsigned int __ctx(fp_pad);
} fpregset_t;
/* Context to describe whole processor state. */
typedef struct
{
- gregset_t gpregs;
- fpregset_t fpregs;
+ gregset_t __ctx(gpregs);
+ fpregset_t __ctx(fpregs);
} mcontext_t;
+#undef __ctx
+
/* Userlevel context. */
typedef struct ucontext
{
diff --git a/sysdeps/unix/sysv/linux/alpha/sys/ucontext.h b/sysdeps/unix/sysv/linux/alpha/sys/ucontext.h
index dc76e49..8f27112 100644
--- a/sysdeps/unix/sysv/linux/alpha/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/alpha/sys/ucontext.h
@@ -31,19 +31,25 @@
typedef long int greg_t;
/* Number of general registers. */
-#define NGREG 33
+#define __NGREG 33
+#ifdef __USE_MISC
+# define NGREG __NGREG
+#endif
/* Container for all general registers. */
-typedef greg_t gregset_t[NGREG];
+typedef greg_t gregset_t[__NGREG];
/* Type for floating-point register. */
typedef long int fpreg_t;
/* Number of general registers. */
-#define NFPREG 32
+#define __NFPREG 32
+#ifdef __USE_MISC
+# define NFPREG __NFPREG
+#endif
/* Container for all general registers. */
-typedef fpreg_t fpregset_t[NFPREG];
+typedef fpreg_t fpregset_t[__NFPREG];
/* A machine context is exactly a sigcontext. */
diff --git a/sysdeps/unix/sysv/linux/m68k/sys/ucontext.h b/sysdeps/unix/sysv/linux/m68k/sys/ucontext.h
index 3c5dce5..f28c9a2 100644
--- a/sysdeps/unix/sysv/linux/m68k/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/m68k/sys/ucontext.h
@@ -33,10 +33,13 @@
typedef int greg_t;
/* Number of general registers. */
-#define NGREG 18
+#define __NGREG 18
+#ifdef __USE_MISC
+# define NGREG __NGREG
+#endif
/* Container for all general registers. */
-typedef greg_t gregset_t[NGREG];
+typedef greg_t gregset_t[__NGREG];
#ifdef __USE_MISC
/* Number of each register is the `gregset_t' array. */
@@ -83,27 +86,35 @@ enum
};
#endif
+#ifdef __USE_MISC
+# define __ctx(fld) fld
+#else
+# define __ctx(fld) __ ## fld
+#endif
+
/* Structure to describe FPU registers. */
typedef struct fpregset
{
- int f_pcr;
- int f_psr;
- int f_fpiaddr;
+ int __ctx(f_pcr);
+ int __ctx(f_psr);
+ int __ctx(f_fpiaddr);
#ifdef __mcoldfire__
- int f_fpregs[8][2];
+ int __ctx(f_fpregs)[8][2];
#else
- int f_fpregs[8][3];
+ int __ctx(f_fpregs)[8][3];
#endif
} fpregset_t;
/* Context to describe whole processor state. */
typedef struct
{
- int version;
- gregset_t gregs;
- fpregset_t fpregs;
+ int __ctx(version);
+ gregset_t __ctx(gregs);
+ fpregset_t __ctx(fpregs);
} mcontext_t;
+#undef __ctx
+
#ifdef __USE_MISC
# define MCONTEXT_VERSION 2
#endif
diff --git a/sysdeps/unix/sysv/linux/mips/sys/ucontext.h b/sysdeps/unix/sysv/linux/mips/sys/ucontext.h
index f766dac..f8d829c 100644
--- a/sysdeps/unix/sysv/linux/mips/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/mips/sys/ucontext.h
@@ -35,21 +35,31 @@
__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;
@@ -62,46 +72,48 @@ 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
{
diff --git a/sysdeps/unix/sysv/linux/nios2/sys/ucontext.h b/sysdeps/unix/sysv/linux/nios2/sys/ucontext.h
index 3b0a615..01e4d2b 100644
--- a/sysdeps/unix/sysv/linux/nios2/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/nios2/sys/ucontext.h
@@ -36,13 +36,21 @@
# define MCONTEXT_VERSION 2
#endif
+#ifdef __USE_MISC
+# define __ctx(fld) fld
+#else
+# define __ctx(fld) __ ## fld
+#endif
+
/* Context to describe whole processor state. */
typedef struct mcontext
{
- int version;
- unsigned long regs[32];
+ int __ctx(version);
+ unsigned long __ctx(regs)[32];
} mcontext_t;
+#undef __ctx
+
/* Userlevel context. */
typedef struct ucontext
{
diff --git a/sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h b/sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h
index c3f9622..883974d 100644
--- a/sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h
@@ -28,19 +28,28 @@
#include <bits/sigstack.h>
+#ifdef __USE_MISC
+# define __ctx(fld) fld
+#else
+# define __ctx(fld) __ ## fld
+#endif
+
#if __WORDSIZE == 32
/* Number of general registers. */
-# define NGREG 48
+# define __NGREG 48
+# ifdef __USE_MISC
+# define NGREG __NGREG
+# endif
/* Container for all general registers. */
-typedef unsigned long gregset_t[NGREG];
+typedef unsigned long gregset_t[__NGREG];
/* Container for floating-point registers and status */
typedef struct _libc_fpstate
{
- double fpregs[32];
- double fpscr;
+ double __ctx(fpregs)[32];
+ double __ctx(fpscr);
unsigned int _pad[2];
} fpregset_t;
@@ -48,18 +57,18 @@ typedef struct _libc_fpstate
Needs to be aligned on a 16-byte boundary. */
typedef struct _libc_vrstate
{
- unsigned int vrregs[32][4];
- unsigned int vrsave;
+ unsigned int __ctx(vrregs)[32][4];
+ unsigned int __ctx(vrsave);
unsigned int _pad[2];
- unsigned int vscr;
+ unsigned int __ctx(vscr);
} vrregset_t;
/* Context to describe whole processor state. */
typedef struct
{
- gregset_t gregs;
- fpregset_t fpregs;
- vrregset_t vrregs __attribute__((__aligned__(16)));
+ gregset_t __ctx(gregs);
+ fpregset_t __ctx(fpregs);
+ vrregset_t __ctx(vrregs) __attribute__((__aligned__(16)));
} mcontext_t;
#else
@@ -73,12 +82,18 @@ typedef struct
* is set in AT_HWCAP. */
/* Number of general registers. */
-# define NGREG 48 /* includes r0-r31, nip, msr, lr, etc. */
-# define NFPREG 33 /* includes fp0-fp31 &fpscr. */
-# define NVRREG 34 /* includes v0-v31, vscr, & vrsave in split vectors */
-
-typedef unsigned long gregset_t[NGREG];
-typedef double fpregset_t[NFPREG];
+# define __NGREG 48 /* includes r0-r31, nip, msr, lr, etc. */
+# define __NFPREG 33 /* includes fp0-fp31 &fpscr. */
+# define __NVRREG 34 /* includes v0-v31, vscr, & vrsave in
+ split vectors */
+# ifdef __USE_MISC
+# define NGREG __NGREG
+# define NFPREG __NFPREG
+# define NVRREG __NVRREG
+# endif
+
+typedef unsigned long gregset_t[__NGREG];
+typedef double fpregset_t[__NFPREG];
/* Container for Altivec/VMX Vector Status and Control Register. Only 32-bits
but can only be copied to/from a 128-bit vector register. So we allocated
@@ -86,28 +101,28 @@ typedef double fpregset_t[NFPREG];
typedef struct _libc_vscr
{
unsigned int __pad[3];
- unsigned int vscr_word;
+ unsigned int __ctx(vscr_word);
} vscr_t;
/* Container for Altivec/VMX registers and status.
Must to be aligned on a 16-byte boundary. */
typedef struct _libc_vrstate
{
- unsigned int vrregs[32][4];
- vscr_t vscr;
- unsigned int vrsave;
+ unsigned int __ctx(vrregs)[32][4];
+ vscr_t __ctx(vscr);
+ unsigned int __ctx(vrsave);
unsigned int __pad[3];
} vrregset_t __attribute__((__aligned__(16)));
typedef struct {
unsigned long __glibc_reserved[4];
- int signal;
+ int __ctx(signal);
int __pad0;
- unsigned long handler;
- unsigned long oldmask;
- struct pt_regs *regs;
- gregset_t gp_regs;
- fpregset_t fp_regs;
+ unsigned long __ctx(handler);
+ unsigned long __ctx(oldmask);
+ struct pt_regs *__ctx(regs);
+ gregset_t __ctx(gp_regs);
+ fpregset_t __ctx(fp_regs);
/*
* To maintain compatibility with current implementations the sigcontext is
* extended by appending a pointer (v_regs) to a quadword type (elf_vrreg_t)
@@ -127,12 +142,14 @@ typedef struct {
* The entry with index 33 contains the vrsave as the first word (offset 0)
* within the quadword.
*/
- vrregset_t *v_regs;
- long vmx_reserve[NVRREG+NVRREG+1];
+ vrregset_t *__ctx(v_regs);
+ long __ctx(vmx_reserve)[__NVRREG+__NVRREG+1];
} mcontext_t;
#endif
+#undef __ctx
+
/* Userlevel context. */
typedef struct ucontext
{
diff --git a/sysdeps/unix/sysv/linux/s390/sys/ucontext.h b/sysdeps/unix/sysv/linux/s390/sys/ucontext.h
index 9790c0c..eb749f9 100644
--- a/sysdeps/unix/sysv/linux/s390/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/s390/sys/ucontext.h
@@ -28,11 +28,17 @@
#include <bits/sigstack.h>
+#ifdef __USE_MISC
+# define __ctx(fld) fld
+#else
+# define __ctx(fld) __ ## fld
+#endif
+
/* Type for a program status word. */
typedef struct
{
- unsigned long mask;
- unsigned long addr;
+ unsigned long __ctx(mask);
+ unsigned long __ctx(addr);
} __attribute__ ((__aligned__(8))) __psw_t;
/* Type for a general-purpose register. */
@@ -44,35 +50,40 @@ typedef unsigned long greg_t;
that has the same size as s390_regs. This is needed for the
elf_prstatus structure. */
#if __WORDSIZE == 64
-# define NGREG 27
+# define __NGREG 27
#else
-# define NGREG 36
+# define __NGREG 36
+#endif
+#ifdef __USE_MISC
+# define NGREG __NGREG
#endif
/* Must match kernels psw_t alignment. */
-typedef greg_t gregset_t[NGREG] __attribute__ ((__aligned__(8)));
+typedef greg_t gregset_t[__NGREG] __attribute__ ((__aligned__(8)));
typedef union
{
- double d;
- float f;
+ double __ctx(d);
+ float __ctx(f);
} fpreg_t;
/* Register set for the floating-point registers. */
typedef struct
{
- unsigned int fpc;
- fpreg_t fprs[16];
+ unsigned int __ctx(fpc);
+ fpreg_t __ctx(fprs)[16];
} fpregset_t;
/* Context to describe whole processor state. */
typedef struct
{
- __psw_t psw;
- unsigned long gregs[16];
- unsigned int aregs[16];
- fpregset_t fpregs;
+ __psw_t __ctx(psw);
+ unsigned long __ctx(gregs)[16];
+ unsigned int __ctx(aregs)[16];
+ fpregset_t __ctx(fpregs);
} mcontext_t;
+#undef __ctx
+
/* Userlevel context. */
typedef struct ucontext
{
diff --git a/sysdeps/unix/sysv/linux/sh/sys/ucontext.h b/sysdeps/unix/sysv/linux/sh/sys/ucontext.h
index 5c6a5e4..6d2fa39 100644
--- a/sysdeps/unix/sysv/linux/sh/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/sh/sys/ucontext.h
@@ -32,10 +32,13 @@
typedef int greg_t;
/* Number of general registers. */
-#define NGREG 16
+#define __NGREG 16
+#ifdef __USE_MISC
+# define NGREG __NGREG
+#endif
/* Container for all general registers. */
-typedef greg_t gregset_t[NGREG];
+typedef greg_t gregset_t[__NGREG];
#ifdef __USE_MISC
/* Number of each register is the `gregset_t' array. */
@@ -79,29 +82,40 @@ enum
typedef int freg_t;
/* Number of FPU registers. */
-#define NFPREG 16
+#define __NFPREG 16
+#ifdef __USE_MISC
+# define NFPREG __NFPREG
+#endif
/* Structure to describe FPU registers. */
-typedef freg_t fpregset_t[NFPREG];
+typedef freg_t fpregset_t[__NFPREG];
+
+#ifdef __USE_MISC
+# define __ctx(fld) fld
+#else
+# define __ctx(fld) __ ## fld
+#endif
/* Context to describe whole processor state. */
typedef struct
{
- unsigned int oldmask;
- gregset_t gregs;
- unsigned int pc;
- unsigned int pr;
- unsigned int sr;
- unsigned int gbr;
- unsigned int mach;
- unsigned int macl;
- fpregset_t fpregs;
- fpregset_t xfpregs;
- unsigned int fpscr;
- unsigned int fpul;
- unsigned int ownedfp;
+ unsigned int __ctx(oldmask);
+ gregset_t __ctx(gregs);
+ unsigned int __ctx(pc);
+ unsigned int __ctx(pr);
+ unsigned int __ctx(sr);
+ unsigned int __ctx(gbr);
+ unsigned int __ctx(mach);
+ unsigned int __ctx(macl);
+ fpregset_t __ctx(fpregs);
+ fpregset_t __ctx(xfpregs);
+ unsigned int __ctx(fpscr);
+ unsigned int __ctx(fpul);
+ unsigned int __ctx(ownedfp);
} mcontext_t;
+#undef __ctx
+
/* Userlevel context. */
typedef struct ucontext
{
diff --git a/sysdeps/unix/sysv/linux/x86/sys/ucontext.h b/sysdeps/unix/sysv/linux/x86/sys/ucontext.h
index 6dad48f..974d38c 100644
--- a/sysdeps/unix/sysv/linux/x86/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/x86/sys/ucontext.h
@@ -27,16 +27,25 @@
#include <bits/sigstack.h>
+#ifdef __USE_MISC
+# define __ctx(fld) fld
+#else
+# define __ctx(fld) __ ## fld
+#endif
+
#ifdef __x86_64__
/* Type for general register. */
__extension__ typedef long long int greg_t;
/* Number of general registers. */
-#define NGREG 23
+#define __NGREG 23
+#ifdef __USE_MISC
+# define NGREG __NGREG
+#endif
/* Container for all general registers. */
-typedef greg_t gregset_t[NGREG];
+typedef greg_t gregset_t[__NGREG];
#ifdef __USE_GNU
/* Number of each register in the `gregset_t' array. */
@@ -93,8 +102,8 @@ enum
struct _libc_fpxreg
{
- unsigned short int significand[4];
- unsigned short int exponent;
+ unsigned short int __ctx(significand)[4];
+ unsigned short int __ctx(exponent);
unsigned short int __glibc_reserved1[3];
};
@@ -106,14 +115,14 @@ struct _libc_xmmreg
struct _libc_fpstate
{
/* 64-bit FXSAVE format. */
- __uint16_t cwd;
- __uint16_t swd;
- __uint16_t ftw;
- __uint16_t fop;
- __uint64_t rip;
- __uint64_t rdp;
- __uint32_t mxcsr;
- __uint32_t mxcr_mask;
+ __uint16_t __ctx(cwd);
+ __uint16_t __ctx(swd);
+ __uint16_t __ctx(ftw);
+ __uint16_t __ctx(fop);
+ __uint64_t __ctx(rip);
+ __uint64_t __ctx(rdp);
+ __uint32_t __ctx(mxcsr);
+ __uint32_t __ctx(mxcr_mask);
struct _libc_fpxreg _st[8];
struct _libc_xmmreg _xmm[16];
__uint32_t __glibc_reserved1[24];
@@ -125,9 +134,9 @@ typedef struct _libc_fpstate *fpregset_t;
/* Context to describe whole processor state. */
typedef struct
{
- gregset_t gregs;
+ gregset_t __ctx(gregs);
/* Note that fpregs is a pointer. */
- fpregset_t fpregs;
+ fpregset_t __ctx(fpregs);
__extension__ unsigned long long __reserved1 [8];
} mcontext_t;
@@ -148,10 +157,13 @@ typedef struct ucontext
typedef int greg_t;
/* Number of general registers. */
-#define NGREG 19
+#define __NGREG 19
+#ifdef __USE_MISC
+# define NGREG __NGREG
+#endif
/* Container for all general registers. */
-typedef greg_t gregset_t[NGREG];
+typedef greg_t gregset_t[__NGREG];
#ifdef __USE_GNU
/* Number of each register is the `gregset_t' array. */
@@ -201,21 +213,21 @@ enum
/* Definitions taken from the kernel headers. */
struct _libc_fpreg
{
- unsigned short int significand[4];
- unsigned short int exponent;
+ unsigned short int __ctx(significand)[4];
+ unsigned short int __ctx(exponent);
};
struct _libc_fpstate
{
- unsigned long int cw;
- unsigned long int sw;
- unsigned long int tag;
- unsigned long int ipoff;
- unsigned long int cssel;
- unsigned long int dataoff;
- unsigned long int datasel;
+ unsigned long int __ctx(cw);
+ unsigned long int __ctx(sw);
+ unsigned long int __ctx(tag);
+ unsigned long int __ctx(ipoff);
+ unsigned long int __ctx(cssel);
+ unsigned long int __ctx(dataoff);
+ unsigned long int __ctx(datasel);
struct _libc_fpreg _st[8];
- unsigned long int status;
+ unsigned long int __ctx(status);
};
/* Structure to describe FPU registers. */
@@ -224,12 +236,12 @@ typedef struct _libc_fpstate *fpregset_t;
/* Context to describe whole processor state. */
typedef struct
{
- gregset_t gregs;
+ gregset_t __ctx(gregs);
/* Due to Linux's history we have to use a pointer here. The SysV/i386
ABI requires a struct with the values. */
- fpregset_t fpregs;
- unsigned long int oldmask;
- unsigned long int cr2;
+ fpregset_t __ctx(fpregs);
+ unsigned long int __ctx(oldmask);
+ unsigned long int __ctx(cr2);
} mcontext_t;
/* Userlevel context. */
@@ -245,4 +257,6 @@ typedef struct ucontext
#endif /* !__x86_64__ */
+#undef __ctx
+
#endif /* sys/ucontext.h */
--
Joseph S. Myers
joseph@codesourcery.com