373d2348be
Until a recent patch in coreutils, gnus uname -p returned a different arch on apple silicon macs, compared to the uname shipped with macos. This causes config.guess to produce incorrect build system triplets for various projects on these systems when in a nix-shell.[23][42] As coreutils only releases every few months/years and no release is planned at the moment, I'm introducing the patch here. We can drop it once the next coreutils version is released. I made a tiny adjustment to the patch from [23]. I removed the usage of MAYBE_UNUSED, which currently only compiles against HEAD. [23] https://debbugs.gnu.org/cgi/bugreport.cgi?bug=52330 [42] https://github.com/NixOS/nixpkgs/issues/147914
125 lines
3.8 KiB
Diff
125 lines
3.8 KiB
Diff
diff --git a/src/uname.c b/src/uname.c
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index ae9b8e29d..e84fc477a 100644
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--- a/src/uname.c
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+++ b/src/uname.c
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@@ -27,7 +27,7 @@
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# include <sys/systeminfo.h>
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#endif
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-#if HAVE_SYS_SYSCTL_H && ! defined __GLIBC__
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+#if HAVE_SYS_SYSCTL_H && ! defined __GLIBC__ && ! defined __APPLE__
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# if HAVE_SYS_PARAM_H
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# include <sys/param.h> /* needed for OpenBSD 3.0 */
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# endif
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@@ -44,11 +44,6 @@
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# endif
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#endif
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-#ifdef __APPLE__
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-# include <mach/machine.h>
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-# include <mach-o/arch.h>
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-#endif
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-
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#include "system.h"
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#include "die.h"
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#include "error.h"
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@@ -167,6 +162,24 @@ print_element (char const *element)
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fputs (element, stdout);
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}
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+/* Print ELEMENT, preceded by a space if something has already been
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+ printed. But if the environment variable ENVVAR is set, print its
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+ value instead of ELEMENT. */
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+
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+static void
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+print_element_env (char const *element, char const *envvar)
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+{
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+#ifdef __APPLE__
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+ if (envvar)
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+ {
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+ char const *val = getenv (envvar);
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+ if (val)
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+ element = val;
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+ }
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+#endif
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+ print_element (element);
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+}
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+
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/* Set all the option flags according to the switches specified.
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Return the mask indicating which elements to print. */
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@@ -287,26 +300,36 @@ main (int argc, char **argv)
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die (EXIT_FAILURE, errno, _("cannot get system name"));
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if (toprint & PRINT_KERNEL_NAME)
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- print_element (name.sysname);
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+ print_element_env (name.sysname, "UNAME_SYSNAME");
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if (toprint & PRINT_NODENAME)
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- print_element (name.nodename);
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+ print_element_env (name.nodename, "UNAME_NODENAME");
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if (toprint & PRINT_KERNEL_RELEASE)
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- print_element (name.release);
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+ print_element_env (name.release, "UNAME_RELEASE");
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if (toprint & PRINT_KERNEL_VERSION)
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- print_element (name.version);
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+ print_element_env (name.version, "UNAME_VERSION");
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if (toprint & PRINT_MACHINE)
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- print_element (name.machine);
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+ print_element_env (name.machine, "UNAME_MACHINE");
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}
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if (toprint & PRINT_PROCESSOR)
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{
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char const *element = unknown;
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+#ifdef __APPLE__
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+# if defined __arm__ || defined __arm64__
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+ element = "arm";
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+# elif defined __i386__ || defined __x86_64__
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+ element = "i386";
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+# elif defined __ppc__ || defined __ppc64__
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+ element = "powerpc";
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+# endif
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+#endif
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#if HAVE_SYSINFO && defined SI_ARCHITECTURE
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- {
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- static char processor[257];
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- if (0 <= sysinfo (SI_ARCHITECTURE, processor, sizeof processor))
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- element = processor;
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- }
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+ if (element == unknown)
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+ {
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+ static char processor[257];
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+ if (0 <= sysinfo (SI_ARCHITECTURE, processor, sizeof processor))
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+ element = processor;
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+ }
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#endif
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#ifdef UNAME_PROCESSOR
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if (element == unknown)
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@@ -316,26 +339,6 @@ main (int argc, char **argv)
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static int mib[] = { CTL_HW, UNAME_PROCESSOR };
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if (sysctl (mib, 2, processor, &s, 0, 0) >= 0)
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element = processor;
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-
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-# ifdef __APPLE__
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- /* This kludge works around a bug in Mac OS X. */
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- if (element == unknown)
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- {
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- cpu_type_t cputype;
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- size_t cs = sizeof cputype;
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- NXArchInfo const *ai;
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- if (sysctlbyname ("hw.cputype", &cputype, &cs, NULL, 0) == 0
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- && (ai = NXGetArchInfoFromCpuType (cputype,
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- CPU_SUBTYPE_MULTIPLE))
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- != NULL)
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- element = ai->name;
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-
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- /* Hack "safely" around the ppc vs. powerpc return value. */
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- if (cputype == CPU_TYPE_POWERPC
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- && STRNCMP_LIT (element, "ppc") == 0)
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- element = "powerpc";
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- }
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-# endif
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}
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#endif
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if (! (toprint == UINT_MAX && element == unknown))
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