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https://git.in.rschanz.org/ryan77627/guix.git
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75 lines
2 KiB
Diff
75 lines
2 KiB
Diff
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https://sources.debian.org/data/main/p/picprog/1.9.1-3/debian/patches/20_iopl.patch
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Description: Avoid some functions in some architectures
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Upstream uses iopl() function and other architecture-dependent
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codes. This patch adds building switches to avoid them in
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some architectures.
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Author: Koichi Akabe <vbkaisetsu@gmail.com>
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Last-Update: 2011-11-30
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--- picprog-1.9.1.orig/picport.cc
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+++ picprog-1.9.1/picport.cc
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@@ -38,7 +38,12 @@
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#include <ctime>
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#include <sys/ioctl.h>
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-#include <sys/io.h>
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+
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+#if defined(__i386__) || defined(__x86_64__)
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+ #include <sys/io.h>
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+ #define HAVE_IOPL
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+#endif
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+
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#include <fcntl.h>
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#include <sys/time.h>
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#include <unistd.h>
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@@ -160,8 +165,12 @@
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// Not root. Cannot use realtime scheduling.
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use_nanosleep = 0;
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}
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+#ifdef HAVE_IOPL
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if (iopl (3))
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disable_interrupts = 0;
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+#else
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+ disable_interrupts = 0;
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+#endif
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#ifdef CPU_SETSIZE
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// When computing the delay loops, we do not want the cpu's to change.
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@@ -403,13 +412,17 @@
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{
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struct timeval tv1, tv2;
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gettimeofday (&tv1, 0);
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+#if defined(__i386__) or defined(__x86_64__)
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if (tsc_1000ns > 1 && disable_interrupts)
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asm volatile("pushf; cli");
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+#endif
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set_clock_data (1, b); // set data, clock up
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delay (cable_delay);
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set_clock_data (0, b); // clock down
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+#if defined(__i386__) or defined(__x86_64__)
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if (tsc_1000ns > 1 && disable_interrupts)
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asm volatile("popf");
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+#endif
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gettimeofday (&tv2, 0);
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// We may have spent a long time in an interrupt or in another task
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@@ -428,13 +441,17 @@
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{
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struct timeval tv1, tv2;
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gettimeofday (&tv1, 0);
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+#if defined(__i386__) or defined(__x86_64__)
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if (tsc_1000ns > 1 && disable_interrupts)
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asm volatile("pushf; cli");
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+#endif
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set_clock_data (1, 1); // clock up
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delay (cable_delay);
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set_clock_data (0, 1); // set data up, clock down
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+#if defined(__i386__) or defined(__x86_64__)
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if (tsc_1000ns > 1 && disable_interrupts)
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asm volatile("popf");
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+#endif
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gettimeofday (&tv2, 0);
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// We may have spent a long time in an interrupt or in another task
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