Merge remote-tracking branch 'remotes/thuth-gitlab/tags/pull-request-2021-06-02' into staging

* Update the references to some doc files (use *.rst instead of *.txt)
* Bump minimum versions of some requirements after removing CentOS 7 support

# gpg: Signature made Wed 02 Jun 2021 08:12:18 BST
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/thuth-gitlab/tags/pull-request-2021-06-02:
  configure: bump min required CLang to 6.0 / XCode 10.0
  configure: bump min required GCC to 7.5.0
  configure: bump min required glib version to 2.56
  tests/docker: drop CentOS 7 container
  tests/vm: convert centos VM recipe to CentOS 8
  crypto: drop used conditional check
  crypto: bump min gnutls to 3.5.18, dropping RHEL-7 support
  crypto: bump min gcrypt to 1.8.0, dropping RHEL-7 support
  crypto: drop back compatibility typedefs for nettle
  crypto: bump min nettle to 3.4, dropping RHEL-7 support
  patchew: move quick build job from CentOS 7 to CentOS 8 container
  block/ssh: Bump minimum libssh version to 0.8.7
  docs: fix references to docs/devel/s390-dasd-ipl.rst
  docs: fix references to docs/specs/tpm.rst
  docs: fix references to docs/devel/build-system.rst
  docs: fix references to docs/devel/atomics.rst
  docs: fix references to docs/devel/tracing.rst

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

8 files changed, 8 insertions, 8 deletions

diff --git a/target/arm/trace-events b/target/arm/trace-events
index 41c63d7570..2a0ba7bffc 100644
--- a/target/arm/trace-events
+++ b/target/arm/trace-events
@@ -1,4 +1,4 @@
-# See docs/devel/tracing.txt for syntax documentation.
+# See docs/devel/tracing.rst for syntax documentation.
 
 # helper.c
 arm_gt_recalc(int timer, int irqstate, uint64_t nexttick) "gt recalc: timer %d irqstate %d next tick 0x%" PRIx64
diff --git a/target/hppa/trace-events b/target/hppa/trace-events
index 0731ce7ce1..8931517890 100644
--- a/target/hppa/trace-events
+++ b/target/hppa/trace-events
@@ -1,4 +1,4 @@
-# See docs/devel/tracing.txt for syntax documentation.
+# See docs/devel/tracing.rst for syntax documentation.
 
 # mem_helper.c
 disable hppa_tlb_flush_ent(void *env, void *ent, uint64_t va_b, uint64_t va_e, uint64_t pa) "env=%p ent=%p va_b=0x%lx va_e=0x%lx pa=0x%lx"
diff --git a/target/i386/kvm/trace-events b/target/i386/kvm/trace-events
index b4e2d9e4ea..7c369db1e1 100644
--- a/target/i386/kvm/trace-events
+++ b/target/i386/kvm/trace-events
@@ -1,4 +1,4 @@
-# See docs/devel/tracing.txt for syntax documentation.
+# See docs/devel/tracing.rst for syntax documentation.
 
 # kvm.c
 kvm_x86_fixup_msi_error(uint32_t gsi) "VT-d failed to remap interrupt for GSI %" PRIu32
diff --git a/target/i386/trace-events b/target/i386/trace-events
index 8d6437404d..2cd8726eeb 100644
--- a/target/i386/trace-events
+++ b/target/i386/trace-events
@@ -1,4 +1,4 @@
-# See docs/devel/tracing.txt for syntax documentation.
+# See docs/devel/tracing.rst for syntax documentation.
 
 # sev.c
 kvm_sev_init(void) ""
diff --git a/target/mips/trace-events b/target/mips/trace-events
index ba87fe6062..0c55e0bbad 100644
--- a/target/mips/trace-events
+++ b/target/mips/trace-events
@@ -1,4 +1,4 @@
-# See docs/devel/tracing.txt for syntax documentation.
+# See docs/devel/tracing.rst for syntax documentation.
 
 # translate.c
 mips_translate_c0(const char *instr, const char *rn, int reg, int sel) "%s %s (reg %d sel %d)"
diff --git a/target/ppc/trace-events b/target/ppc/trace-events
index bc0d4e6f8b..c88cfccf8d 100644
--- a/target/ppc/trace-events
+++ b/target/ppc/trace-events
@@ -1,4 +1,4 @@
-# See docs/devel/tracing.txt for syntax documentation.
+# See docs/devel/tracing.rst for syntax documentation.
 
 # kvm.c
 kvm_failed_spr_set(int spr, const char *msg) "Warning: Unable to set SPR %d to KVM: %s"
diff --git a/target/s390x/trace-events b/target/s390x/trace-events
index fda1ee8220..e661a81e3a 100644
--- a/target/s390x/trace-events
+++ b/target/s390x/trace-events
@@ -1,4 +1,4 @@
-# See docs/devel/tracing.txt for syntax documentation.
+# See docs/devel/tracing.rst for syntax documentation.
 
 # mmu_helper.c
 get_skeys_nonzero(int rc) "SKEY: Call to get_skeys unexpectedly returned %d"
diff --git a/target/sparc/trace-events b/target/sparc/trace-events
index 75e7093d5f..de9833283d 100644
--- a/target/sparc/trace-events
+++ b/target/sparc/trace-events
@@ -1,4 +1,4 @@
-# See docs/devel/tracing.txt for syntax documentation.
+# See docs/devel/tracing.rst for syntax documentation.
 
 # mmu_helper.c
 mmu_helper_dfault(uint64_t address, uint64_t context, int mmu_idx, uint32_t tl) "DFAULT at 0x%"PRIx64" context 0x%"PRIx64" mmu_idx=%d tl=%d"