[xen staging] tools/misc/xen-vmtrace: handle more signals and install by default

[patchbot@xxxxxxx]

commit 2c7242bb2a11c027921b7f153841e59457edacc3
Author:     Tamas K Lengyel <tamas@xxxxxxxxxxxxx>
AuthorDate: Fri May 7 11:28:36 2021 -0400
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Fri Jul 9 16:38:25 2021 +0100

    tools/misc/xen-vmtrace: handle more signals and install by default
    
    Signed-off-by: Tamas K Lengyel <tamas@xxxxxxxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 tools/misc/Makefile      |  2 +-
 tools/misc/xen-vmtrace.c | 12 +++++++++---
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/tools/misc/Makefile b/tools/misc/Makefile
index 2b683819d4..c32c42d546 100644
--- a/tools/misc/Makefile
+++ b/tools/misc/Makefile
@@ -25,6 +25,7 @@ INSTALL_SBIN-$(CONFIG_X86)     += xen-lowmemd
 INSTALL_SBIN-$(CONFIG_X86)     += xen-memshare
 INSTALL_SBIN-$(CONFIG_X86)     += xen-mfndump
 INSTALL_SBIN-$(CONFIG_X86)     += xen-ucode
+INSTALL_SBIN-$(CONFIG_X86)     += xen-vmtrace
 INSTALL_SBIN                   += xencov
 INSTALL_SBIN                   += xenhypfs
 INSTALL_SBIN                   += xenlockprof
@@ -51,7 +52,6 @@ TARGETS_COPY += xenpvnetboot
 TARGETS_BUILD := $(filter-out $(TARGETS_COPY),$(TARGETS_ALL))
 
 # ... including build-only targets
-TARGETS_BUILD-$(CONFIG_X86)    += xen-vmtrace
 TARGETS_BUILD += $(TARGETS_BUILD-y)
 
 .PHONY: all build
diff --git a/tools/misc/xen-vmtrace.c b/tools/misc/xen-vmtrace.c
index 35d14c6a9b..5b688a54af 100644
--- a/tools/misc/xen-vmtrace.c
+++ b/tools/misc/xen-vmtrace.c
@@ -44,7 +44,7 @@ static size_t size;
 static char *buf;
 
 static sig_atomic_t interrupted;
-static void int_handler(int signum)
+static void close_handler(int signum)
 {
     interrupted = 1;
 }
@@ -78,8 +78,14 @@ int main(int argc, char **argv)
     int rc, exit = 1;
     xenforeignmemory_resource_handle *fres = NULL;
 
-    if ( signal(SIGINT, int_handler) == SIG_ERR )
-        err(1, "Failed to register signal handler\n");
+    struct sigaction act;
+    act.sa_handler = close_handler;
+    act.sa_flags = 0;
+    sigemptyset(&act.sa_mask);
+    sigaction(SIGHUP,  &act, NULL);
+    sigaction(SIGTERM, &act, NULL);
+    sigaction(SIGINT,  &act, NULL);
+    sigaction(SIGALRM, &act, NULL);
 
     if ( argc != 3 )
     {
--
generated by git-patchbot for /home/xen/git/xen.git#staging