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This patch fixes various miscellaneous namespace issues in the SPARC
sys/ucontext.h header. These are similar to changes made previous to
other sys/ucontext.h headers, where the SPARC header was excluded from
those previous patches because of its complexity.
Tested for SPARC with build-many-glibcs.py.
[BZ #21457]
* sysdeps/unix/sysv/linux/sparc/sys/ucontext.h (__ctx): New macro.
[__WORDSIZE == 64] (MC_TSTATE): Define only for [__USE_MISC].
[__WORDSIZE == 64] (MC_PC): Likewise.
[__WORDSIZE == 64] (MC_NPC): Likewise.
[__WORDSIZE == 64] (MC_Y): Likewise.
[__WORDSIZE == 64] (MC_G1): Likewise.
[__WORDSIZE == 64] (MC_G2): Likewise.
[__WORDSIZE == 64] (MC_G3): Likewise.
[__WORDSIZE == 64] (MC_G4): Likewise.
[__WORDSIZE == 64] (MC_G5): Likewise.
[__WORDSIZE == 64] (MC_G6): Likewise.
[__WORDSIZE == 64] (MC_G7): Likewise.
[__WORDSIZE == 64] (MC_O0): Likewise.
[__WORDSIZE == 64] (MC_O1): Likewise.
[__WORDSIZE == 64] (MC_O2): Likewise.
[__WORDSIZE == 64] (MC_O3): Likewise.
[__WORDSIZE == 64] (MC_O4): Likewise.
[__WORDSIZE == 64] (MC_O5): Likewise.
[__WORDSIZE == 64] (MC_O6): Likewise.
[__WORDSIZE == 64] (MC_O7): Likewise.
[__WORDSIZE == 64] (MC_NGREG): Rename to __MC_NGREG and define to
__MC_NGREG if [__USE_MISC].
[__WORDSIZE == 64] (MC_MAXFPQ): Define only for [__USE_MISC].
[__WORDSIZE == 64] (mc_gregset_t): Define using __MC_NGREG.
[__WORDSIZE == 64] (struct mc_fq): Rename to struct __mc_fq.
Define fields using __ctx.
[__WORDSIZE == 64] (mc_fpu_t): Remove struct tag. Define fields
using __ctx.
[__WORDSIZE == 64] (mcontext_t): Define fields using __ctx.
(REG_PSR): Define only for [__USE_MISC].
(REG_PC): Likewise.
(REG_nPC): Likewise.
(REG_Y): Likewise.
(REG_G1): Likewise.
(REG_G2): Likewise.
(REG_G3): Likewise.
(REG_G4): Likewise.
(REG_G5): Likewise.
(REG_G6): Likewise.
(REG_G7): Likewise.
(REG_O0): Likewise.
(REG_O1): Likewise.
(REG_O2): Likewise.
(REG_O3): Likewise.
(REG_O4): Likewise.
(REG_O5): Likewise.
(REG_O6): Likewise.
(REG_O7): Likewise.
[__WORDSIZE == 64] (REG_ASI): Define only for [__USE_MISC].
[__WORDSIZE == 64] (REG_FPRS): Likewise.
(NGREG): Rename to __NGREG and define to __NGREG if [__USE_MISC].
(gregset_t): Define using __NGREG.
(SPARC_MAXREGWINDOW): Rename to __SPARC_MAXREGWINDOW and define to
__SPARC_MAXREGWINDOW if [__USE_MISC].
(struct rwindow): Rename to struct __rwindow. Define fields using
__ctx.
(rw_fp): Define only for [__USE_MISC].
(rw_rtn): Likewise.
(gwindows_t): Remove struct tag. Define fields using __ctx and
__SPARC_MAXREGWINDOW.
(MAXFPQ): Define only for [__USE_MISC].
(struct fpq): Rename to struct __fpq. Define fields using __ctx.
(struct fq): Rename to struct __fq. Define fields using __ctx.
(FPU_REGS_TYPE): Define only for [__USE_MISC].
(FPU_DREGS_TYPE): Likewise.
(V7_FPU_FSR_TYPE): Likewise.
(V9_FPU_FSR_TYPE): Likewise.
(V9_FPU_FPRS_TYPE): Likewise.
[__WORDSIZE == 64] (fpregset_t): Remove struct tag. Define fields
using __ctx.
[__WORDSIZE != 64] (fpregset_t): Likewise.
[__WORDSIZE != 64] (xrs_t): Define fields using __ctx.
[__WORDSIZE != 64] (XRS_ID): Define only for [__USE_MISC].
[__WORDSIZE != 64] (mcontext_t): Define fields using __ctx.
Rename field filler to __glibc_reserved1.
* sysdeps/unix/sysv/linux/sparc/sparc32/ucontext_i.sym
(MC_FILLER): Remove.
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