85 lines
3.5 KiB
Diff
85 lines
3.5 KiB
Diff
|
From ad79670d6d1e7ef2aad6935715921e5317cbe618 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
|
||
|
|
Date: Mon, 23 May 2016 22:28:12 +0200
|
||
|
|
Subject: [PATCH] Improve check for ucontext
|
||
|
|
|
||
|
|
The ucontext functionality is not available on all CPUs with all C
|
||
|
|
libraries. Instead of making just assumptions based on the CPU
|
||
|
|
architecture, this commit adds the necessary checks in wscript to verify
|
||
|
|
the availability of the ucontext functionality, before using it in
|
||
|
|
dbus/sigsegv.c.
|
||
|
|
|
||
|
|
This avoids the long list of architecture exclusions, and make it more
|
||
|
|
robust when building jack2 for new CPU architectures.
|
||
|
|
|
||
|
|
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
|
||
|
|
---
|
||
|
|
dbus/sigsegv.c | 12 ++++++------
|
||
|
|
wscript | 16 +++++++++++++++-
|
||
|
|
2 files changed, 21 insertions(+), 7 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/dbus/sigsegv.c b/dbus/sigsegv.c
|
||
|
|
index df2c42c..00a62b5 100644
|
||
|
|
--- a/dbus/sigsegv.c
|
||
|
|
+++ b/dbus/sigsegv.c
|
||
|
|
@@ -106,20 +106,20 @@ static void signal_segv(int signum, siginfo_t* info, void*ptr) {
|
||
|
|
jack_error("info.si_errno = %d", info->si_errno);
|
||
|
|
jack_error("info.si_code = %d (%s)", info->si_code, si_code_str);
|
||
|
|
jack_error("info.si_addr = %p", info->si_addr);
|
||
|
|
-#if !defined(__alpha__) && !defined(__ia64__) && !defined(__FreeBSD_kernel__) && !defined(__arm__) && !defined(__hppa__) && !defined(__sh__) && !defined(__aarch64__)
|
||
|
|
+#if defined(HAVE_UCONTEXT) && defined(HAVE_NGREG)
|
||
|
|
for(i = 0; i < NGREG; i++)
|
||
|
|
jack_error("reg[%02d] = 0x" REGFORMAT, i,
|
||
|
|
-#if defined(__powerpc64__)
|
||
|
|
+#if defined(HAVE_UCONTEXT_GP_REGS)
|
||
|
|
ucontext->uc_mcontext.gp_regs[i]
|
||
|
|
-#elif defined(__powerpc__)
|
||
|
|
+#elif defined(HAVE_UCONTEXT_UC_REGS)
|
||
|
|
ucontext->uc_mcontext.uc_regs[i]
|
||
|
|
-#elif defined(__sparc__) && defined(__arch64__)
|
||
|
|
+#elif defined(HAVE_UCONTEXT_MC_GREGS)
|
||
|
|
ucontext->uc_mcontext.mc_gregs[i]
|
||
|
|
-#else
|
||
|
|
+#elif defined(HAVE_UCONTEXT_GREGS)
|
||
|
|
ucontext->uc_mcontext.gregs[i]
|
||
|
|
#endif
|
||
|
|
);
|
||
|
|
-#endif /* alpha, ia64, kFreeBSD, arm, hppa */
|
||
|
|
+#endif /* defined(HAVE_UCONTEXT) && defined(HAVE_NGREG) */
|
||
|
|
|
||
|
|
#if defined(SIGSEGV_STACK_X86) || defined(SIGSEGV_STACK_IA64)
|
||
|
|
# if defined(SIGSEGV_STACK_IA64)
|
||
|
|
diff --git a/wscript b/wscript
|
||
|
|
index 63ba3aa..34a56fc 100644
|
||
|
|
--- a/wscript
|
||
|
|
+++ b/wscript
|
||
|
|
@@ -168,10 +168,24 @@ def configure(conf):
|
||
|
|
|
||
|
|
conf.check_cc(header_name='execinfo.h', define_name="HAVE_EXECINFO_H", mandatory=False)
|
||
|
|
conf.check_cc(header_name='samplerate.h', define_name="HAVE_SAMPLERATE")
|
||
|
|
-
|
||
|
|
if conf.is_defined('HAVE_SAMPLERATE'):
|
||
|
|
conf.env['LIB_SAMPLERATE'] = ['samplerate']
|
||
|
|
|
||
|
|
+ # test for the availability of ucontext, and how it should be used
|
||
|
|
+ for t in ("gp_regs", "uc_regs", "mc_gregs", "gregs"):
|
||
|
|
+ fragment = "#include <ucontext.h>\n"
|
||
|
|
+ fragment += "int main() { ucontext_t *ucontext; return (int) ucontext->uc_mcontext.%s[0]; }" % t
|
||
|
|
+ confvar = "HAVE_UCONTEXT_%s" % t.upper()
|
||
|
|
+ conf.check_cc(fragment=fragment, define_name=confvar, mandatory=False,
|
||
|
|
+ msg="Checking for ucontext->uc_mcontext.%s" % t)
|
||
|
|
+ if conf.is_defined(confvar):
|
||
|
|
+ conf.define('HAVE_UCONTEXT', 1)
|
||
|
|
+
|
||
|
|
+ fragment = "#include <ucontext.h>\n"
|
||
|
|
+ fragment += "int main() { return NGREG; }"
|
||
|
|
+ conf.check_cc(fragment=fragment, define_name="HAVE_NGREG", mandatory=False,
|
||
|
|
+ msg="Checking for NGREG")
|
||
|
|
+
|
||
|
|
conf.sub_config('example-clients')
|
||
|
|
|
||
|
|
if conf.check_cfg(package='celt', atleast_version='0.11.0', args='--cflags --libs', mandatory=False):
|
||
|
|
--
|
||
|
|
2.7.4
|
||
|
|
|