gnu/packages/patches/picprog-non-intel-support.patch

   1 https://sources.debian.org/data/main/p/picprog/1.9.1-3/debian/patches/20_iopl.patch
   2
   3 Description: Avoid some functions in some architectures
   4  Upstream uses iopl() function and other architecture-dependent
   5  codes. This patch adds building switches to avoid them in
   6  some architectures.
   7 Author: Koichi Akabe <vbkaisetsu@gmail.com>
   8 Last-Update: 2011-11-30
   9
  10 --- picprog-1.9.1.orig/picport.cc
  11 +++ picprog-1.9.1/picport.cc
  12 @@ -38,7 +38,12 @@
  13  #include <ctime>
  14
  15  #include <sys/ioctl.h>
  16 -#include <sys/io.h>
  17 +
  18 +#if defined(__i386__) || defined(__x86_64__)
  19 +  #include <sys/io.h>
  20 +  #define HAVE_IOPL
  21 +#endif
  22 +
  23  #include <fcntl.h>
  24  #include <sys/time.h>
  25  #include <unistd.h>
  26 @@ -160,8 +165,12 @@
  27      // Not root.  Cannot use realtime scheduling.
  28      use_nanosleep = 0;
  29    }
  30 +#ifdef HAVE_IOPL
  31    if (iopl (3))
  32      disable_interrupts = 0;
  33 +#else
  34 +  disable_interrupts = 0;
  35 +#endif
  36
  37  #ifdef CPU_SETSIZE
  38    // When computing the delay loops, we do not want the cpu's to change.
  39 @@ -403,13 +412,17 @@
  40  {
  41    struct timeval tv1, tv2;
  42    gettimeofday (&tv1, 0);
  43 +#if defined(__i386__) or defined(__x86_64__)
  44    if (tsc_1000ns > 1 && disable_interrupts)
  45      asm volatile("pushf; cli");
  46 +#endif
  47    set_clock_data (1, b); // set data, clock up
  48    delay (cable_delay);
  49    set_clock_data (0, b); // clock down
  50 +#if defined(__i386__) or defined(__x86_64__)
  51    if (tsc_1000ns > 1 && disable_interrupts)
  52      asm volatile("popf");
  53 +#endif
  54    gettimeofday (&tv2, 0);
  55
  56    // We may have spent a long time in an interrupt or in another task
  57 @@ -428,13 +441,17 @@
  58  {
  59    struct timeval tv1, tv2;
  60    gettimeofday (&tv1, 0);
  61 +#if defined(__i386__) or defined(__x86_64__)
  62    if (tsc_1000ns > 1 && disable_interrupts)
  63      asm volatile("pushf; cli");
  64 +#endif
  65    set_clock_data (1, 1); // clock up
  66    delay (cable_delay);
  67    set_clock_data (0, 1); // set data up, clock down
  68 +#if defined(__i386__) or defined(__x86_64__)
  69    if (tsc_1000ns > 1 && disable_interrupts)
  70      asm volatile("popf");
  71 +#endif
  72    gettimeofday (&tv2, 0);
  73
  74    // We may have spent a long time in an interrupt or in another task