diff options
author | Joseph Myers <joseph@codesourcery.com> | 2017-08-30 22:02:04 +0000 |
---|---|---|
committer | Joseph Myers <joseph@codesourcery.com> | 2017-08-30 22:02:04 +0000 |
commit | 4fa9b3bfe6759c82beb4b043a54a3598ca467289 (patch) | |
tree | 0ea79808d3ccd29e28b254e6b6cfcd0c01b835cb /sysdeps/unix/sysv/linux/ia64/sys/ucontext.h | |
parent | 5898f4548efdcd7c0fd437a74eeb80facc51a117 (diff) | |
download | glibc-4fa9b3bfe6759c82beb4b043a54a3598ca467289.tar.gz glibc-4fa9b3bfe6759c82beb4b043a54a3598ca467289.tar.xz glibc-4fa9b3bfe6759c82beb4b043a54a3598ca467289.zip |
Fix mcontext_t sigcontext namespace (bug 21457).
This patch completes the ucontext.h namespace fixes by fixing issues related to the use of struct sigcontext as mcontext_t, and inclusion of <bits/sigcontext.h> even when struct sigcontext is not so used. Inclusion of <bits/sigcontext.h> by <sys/ucontext.h> is removed; the way to get the sigcontext structure is by including <signal.h> (in a context where __USE_MISC is defined); the sysdeps/generic version of sys/ucontext.h keeps the inclusion by necessity, with a comment about how this is not namespace-clean, but the only configuration that used it, MicroBlaze, gets its own version of the header in this patch. Where mcontext_t was typedefed to struct sigcontext, the contents of struct sigcontext are inserted (with appropriate namespace handling to prefix fields with __ when __USE_MISC is not defined); review should check that this has been done correctly in each case, whether the definition of struct sigcontext comes from glibc headers or from the Linux kernel. This changes C++ name mangling on affected architectures (which do not include x86_64/x86). Tested for x86_64, and with build-many-glibcs.py. 2017-08-14 Joseph Myers <joseph@codesourcery.com> [BZ #21457] * sysdeps/arm/sys/ucontext.h: Do not include <bits/sigcontext.h>. * sysdeps/generic/sys/ucontext.h: Add comment about use of struct sigcontext and namespace requirements. * sysdeps/i386/sys/ucontext.h: Do not include <bits/sigcontext.h>. * sysdeps/m68k/sys/ucontext.h: Likewise. * sysdeps/mips/sys/ucontext.h: Likewise. Include <bits/types.h>. * sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h: Do not include <bits/sigcontext.h>. (__ctx): Define earlier. (mcontext_t): Define structure contents rather than using struct sigcontext. * sysdeps/unix/sysv/linux/aarch64/ucontext_i.sym (oEXTENSION): Use __glibc_reserved1 instead of __reserved. * sysdeps/unix/sysv/linux/alpha/sys/ucontext.h: Do not include <bits/sigcontext.h>. (__ctx): Define earlier. (mcontext_t): Define structure contents rather than using struct sigcontext. * sysdeps/unix/sysv/linux/alpha/ucontext-offsets.sym: Use mcontext_t instead of struct sigcontext. * sysdeps/unix/sysv/linux/arm/sys/ucontext.h: Do not include <bits/sigcontext.h>. (__ctx): Define earlier. (mcontext_t): Define structure contents rather than using struct sigcontext. * sysdeps/unix/sysv/linux/hppa/sys/ucontext.h: Do not include <bits/sigcontext.h>. (__ctx): Define earlier. (mcontext_t): Define structure contents rather than using struct sigcontext. * sysdeps/unix/sysv/linux/ia64/makecontext.c (__makecontext): Use mcontext_t instead of struct sigcontext. * sysdeps/unix/sysv/linux/ia64/sigcontext-offsets.sym: Use mcontext_t instead of struct sigcontext. * sysdeps/unix/sysv/linux/ia64/sys/ucontext.h: Do not include <bits/sigcontext.h>. (__ctx): New macro. (struct __ia64_fpreg_mcontext): New type. (mcontext_t): Define structure contents rather than using struct sigcontext. (_SC_GR0_OFFSET): Use mcontext_t instead of struct sigcontext. (uc_sigmask): Define using __ctx. (uc_stack): Likewise. * sysdeps/unix/sysv/linux/ia64/sys/procfs.h: Include <bits/sigcontext.h>. * sysdeps/unix/sysv/linux/ia64/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/m68k/sys/ucontext.h: Do not include <bits/sigcontext.h>. * sysdeps/unix/sysv/linux/microblaze/sys/ucontext.h: New file. * sysdeps/unix/sysv/linux/mips/sys/ucontext.h: Do not include <bits/sigcontext.h>. * sysdeps/unix/sysv/linux/nios2/sys/ucontext.h: Do not include <bits/sigcontext.h>. * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h: Do not include <bits/sigcontext.h>. * sysdeps/unix/sysv/linux/s390/sys/ucontext.h: Do not include <bits/sigcontext.h>. * sysdeps/unix/sysv/linux/sh/sys/ucontext.h: Do not include <bits/sigcontext.h>. * sysdeps/unix/sysv/linux/sparc/sys/ucontext.h: Do not include <bits/sigcontext.h>. * sysdeps/unix/sysv/linux/tile/sys/ucontext.h: Do not include <bits/sigcontext.h>. (__ctx): Define earlier. (mcontext_t): Define structure contents rather than using struct sigcontext. * sysdeps/unix/sysv/linux/x86/sys/ucontext.h: Do not include <bits/sigcontext.h>. Include <bits/types.h>. * conform/Makefile (test-xfail-XPG42/signal.h/conform): Remove. (test-xfail-XPG42/sys/wait.h/conform): Likewise. (test-xfail-XPG42/ucontext.h/conform): Likewise. (test-xfail-UNIX98/signal.h/conform): Likewise. (test-xfail-UNIX98/sys/wait.h/conform): Likewise. (test-xfail-UNIX98/ucontext.h/conform): Likewise. (test-xfail-XOPEN2K/signal.h/conform): Likewise. (test-xfail-XOPEN2K/sys/wait.h/conform): Likewise. (test-xfail-XOPEN2K/ucontext.h/conform): Likewise. (test-xfail-POSIX2008/signal.h/conform): Likewise. (test-xfail-POSIX2008/sys/wait.h/conform): Likewise. (test-xfail-XOPEN2K8/signal.h/conform): Likewise. (test-xfail-XOPEN2K8/sys/wait.h/conform): Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/ia64/sys/ucontext.h')
-rw-r--r-- | sysdeps/unix/sysv/linux/ia64/sys/ucontext.h | 53 |
1 files changed, 46 insertions, 7 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/sys/ucontext.h b/sysdeps/unix/sysv/linux/ia64/sys/ucontext.h index 9cd686c40c..8929e093a0 100644 --- a/sysdeps/unix/sysv/linux/ia64/sys/ucontext.h +++ b/sysdeps/unix/sysv/linux/ia64/sys/ucontext.h @@ -21,24 +21,63 @@ #include <features.h> #include <bits/types/sigset_t.h> -#include <bits/sigcontext.h> #include <bits/types/stack_t.h> +#ifdef __USE_MISC +# define __ctx(fld) fld +#else +# define __ctx(fld) __ ## fld +#endif + /* * These are here mostly for backwards compatibility with older Unices. - * IA-64 Linux does not distinguish between "struct sigcontext" and + * IA-64 Linux does not distinguish between "mcontext_t" and * "ucontext_t" as all the necessary info is inside the former. */ -typedef struct sigcontext mcontext_t; +struct __ia64_fpreg_mcontext + { + union + { + unsigned long __ctx(bits)[2]; + } __ctx(u); + } __attribute__ ((__aligned__ (16))); + +typedef struct + { + unsigned long int __ctx(sc_flags); + unsigned long int __ctx(sc_nat); + stack_t __ctx(sc_stack); + unsigned long int __ctx(sc_ip); + unsigned long int __ctx(sc_cfm); + unsigned long int __ctx(sc_um); + unsigned long int __ctx(sc_ar_rsc); + unsigned long int __ctx(sc_ar_bsp); + unsigned long int __ctx(sc_ar_rnat); + unsigned long int __ctx(sc_ar_ccv); + unsigned long int __ctx(sc_ar_unat); + unsigned long int __ctx(sc_ar_fpsr); + unsigned long int __ctx(sc_ar_pfs); + unsigned long int __ctx(sc_ar_lc); + unsigned long int __ctx(sc_pr); + unsigned long int __ctx(sc_br)[8]; + unsigned long int __ctx(sc_gr)[32]; + struct __ia64_fpreg_mcontext __ctx(sc_fr)[128]; + unsigned long int __ctx(sc_rbs_base); + unsigned long int __ctx(sc_loadrs); + unsigned long int __ctx(sc_ar25); + unsigned long int __ctx(sc_ar26); + unsigned long int __ctx(sc_rsvd)[12]; + unsigned long int __ctx(sc_mask); + } mcontext_t; #if __GNUC_PREREQ (3, 5) # define _SC_GR0_OFFSET \ - __builtin_offsetof (struct sigcontext, sc_gr[0]) + __builtin_offsetof (mcontext_t, __ctx(sc_gr)[0]) #elif defined __GNUC__ # define _SC_GR0_OFFSET \ - (((char *) &((struct sigcontext *) 0)->sc_gr[0]) - (char *) 0) + (((char *) &((mcontext_t *) 0)->__ctx(sc_gr)[0]) - (char *) 0) #else # define _SC_GR0_OFFSET 0xc8 /* pray that this is correct... */ #endif @@ -60,8 +99,8 @@ typedef struct ucontext_t ucontext_t; #define uc_mcontext _u._mc -#define uc_sigmask _u._mc.sc_mask -#define uc_stack _u._mc.sc_stack +#define uc_sigmask _u._mc.__ctx(sc_mask) +#define uc_stack _u._mc.__ctx(sc_stack) #define uc_link _u._uc._link #endif /* sys/ucontext.h */ |