[gcc r9-9546] libsanitizer: Remove cyclades from libsanitizer

[gcc r9-9546] libsanitizer: Remove cyclades from libsanitizer

[Tamar Christina]

https://gcc.gnu.org/g:2b40941d23b1570cdd90083b58fa0f66aa58c86e

commit r9-9546-g2b40941d23b1570cdd90083b58fa0f66aa58c86e
Author: Tamar Christina <tamar.christina@arm.com>
Date:   Fri May 21 12:16:56 2021 +0100

    libsanitizer: Remove cyclades from libsanitizer
    
    The Linux kernel has removed the interface to cyclades from
    the latest kernel headers[1] due to them being orphaned for the
    past 13 years.
    
    libsanitizer uses this header when compiling against glibc, but
    glibcs itself doesn't seem to have any references to cyclades.
    
    Further more it seems that the driver is broken in the kernel and
    the firmware doesn't seem to be available anymore.
    
    As such since this is breaking the build of libsanitizer (and so the
    GCC bootstrap[2]) I propose to remove this.
    
    [1] https://lkml.org/lkml/2021/3/2/153
    [2] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100379
    
    libsanitizer/ChangeLog:
    
            PR sanitizer/100379
            * sanitizer_common/sanitizer_common_interceptors_ioctl.inc: Cherry-pick
            llvm-project revision f7c5351552387bd43f6ca3631016d7f0dfe0f135.
            * sanitizer_common/sanitizer_platform_limits_posix.cc: Likewise.
            * sanitizer_common/sanitizer_platform_limits_posix.h: Likewise.

Diff:
---
 .../sanitizer_common/sanitizer_common_interceptors_ioctl.inc  |  9 ---------
 .../sanitizer_common/sanitizer_platform_limits_posix.cc       | 11 -----------
 .../sanitizer_common/sanitizer_platform_limits_posix.h        | 10 ----------
 3 files changed, 30 deletions(-)

diff --git a/libsanitizer/sanitizer_common/sanitizer_common_interceptors_ioctl.inc b/libsanitizer/sanitizer_common/sanitizer_common_interceptors_ioctl.inc
index 5408ea17c59..7a9cd3f5968 100644
--- a/libsanitizer/sanitizer_common/sanitizer_common_interceptors_ioctl.inc
+++ b/libsanitizer/sanitizer_common/sanitizer_common_interceptors_ioctl.inc
@@ -365,15 +365,6 @@ static void ioctl_table_fill() {
 
 #if SANITIZER_LINUX && !SANITIZER_ANDROID
   // _(SIOCDEVPLIP, WRITE, struct_ifreq_sz); // the same as EQL_ENSLAVE
-  _(CYGETDEFTHRESH, WRITE, sizeof(int));
-  _(CYGETDEFTIMEOUT, WRITE, sizeof(int));
-  _(CYGETMON, WRITE, struct_cyclades_monitor_sz);
-  _(CYGETTHRESH, WRITE, sizeof(int));
-  _(CYGETTIMEOUT, WRITE, sizeof(int));
-  _(CYSETDEFTHRESH, NONE, 0);
-  _(CYSETDEFTIMEOUT, NONE, 0);
-  _(CYSETTHRESH, NONE, 0);
-  _(CYSETTIMEOUT, NONE, 0);
   _(EQL_EMANCIPATE, WRITE, struct_ifreq_sz);
   _(EQL_ENSLAVE, WRITE, struct_ifreq_sz);
   _(EQL_GETMASTRCFG, WRITE, struct_ifreq_sz);
diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
index d823a12190c..e8fce8a0287 100644
--- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
+++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
@@ -157,7 +157,6 @@ typedef struct user_fpregs elf_fpregset_t;
 # include <sys/procfs.h>
 #endif
 #include <sys/user.h>
-#include <linux/cyclades.h>
 #include <linux/if_eql.h>
 #include <linux/if_plip.h>
 #include <linux/lp.h>
@@ -466,7 +465,6 @@ unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr);
 
 #if SANITIZER_LINUX && !SANITIZER_ANDROID
   unsigned struct_ax25_parms_struct_sz = sizeof(struct ax25_parms_struct);
-  unsigned struct_cyclades_monitor_sz = sizeof(struct cyclades_monitor);
 #if EV_VERSION > (0x010000)
   unsigned struct_input_keymap_entry_sz = sizeof(struct input_keymap_entry);
 #else
@@ -833,15 +831,6 @@ unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr);
 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
 
 #if SANITIZER_LINUX && !SANITIZER_ANDROID
-  unsigned IOCTL_CYGETDEFTHRESH = CYGETDEFTHRESH;
-  unsigned IOCTL_CYGETDEFTIMEOUT = CYGETDEFTIMEOUT;
-  unsigned IOCTL_CYGETMON = CYGETMON;
-  unsigned IOCTL_CYGETTHRESH = CYGETTHRESH;
-  unsigned IOCTL_CYGETTIMEOUT = CYGETTIMEOUT;
-  unsigned IOCTL_CYSETDEFTHRESH = CYSETDEFTHRESH;
-  unsigned IOCTL_CYSETDEFTIMEOUT = CYSETDEFTIMEOUT;
-  unsigned IOCTL_CYSETTHRESH = CYSETTHRESH;
-  unsigned IOCTL_CYSETTIMEOUT = CYSETTIMEOUT;
   unsigned IOCTL_EQL_EMANCIPATE = EQL_EMANCIPATE;
   unsigned IOCTL_EQL_ENSLAVE = EQL_ENSLAVE;
   unsigned IOCTL_EQL_GETMASTRCFG = EQL_GETMASTRCFG;
diff --git a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
index 6a673a7c995..f921bf2b5b5 100644
--- a/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
+++ b/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h
@@ -1040,7 +1040,6 @@ struct __sanitizer_cookie_io_functions_t {
 
 #if SANITIZER_LINUX && !SANITIZER_ANDROID
   extern unsigned struct_ax25_parms_struct_sz;
-  extern unsigned struct_cyclades_monitor_sz;
   extern unsigned struct_input_keymap_entry_sz;
   extern unsigned struct_ipx_config_data_sz;
   extern unsigned struct_kbdiacrs_sz;
@@ -1385,15 +1384,6 @@ struct __sanitizer_cookie_io_functions_t {
 #endif  // SANITIZER_LINUX || SANITIZER_FREEBSD
 
 #if SANITIZER_LINUX && !SANITIZER_ANDROID
-  extern unsigned IOCTL_CYGETDEFTHRESH;
-  extern unsigned IOCTL_CYGETDEFTIMEOUT;
-  extern unsigned IOCTL_CYGETMON;
-  extern unsigned IOCTL_CYGETTHRESH;
-  extern unsigned IOCTL_CYGETTIMEOUT;
-  extern unsigned IOCTL_CYSETDEFTHRESH;
-  extern unsigned IOCTL_CYSETDEFTIMEOUT;
-  extern unsigned IOCTL_CYSETTHRESH;
-  extern unsigned IOCTL_CYSETTIMEOUT;
   extern unsigned IOCTL_EQL_EMANCIPATE;
   extern unsigned IOCTL_EQL_ENSLAVE;
   extern unsigned IOCTL_EQL_GETMASTRCFG;