[PATCH v3 1/6] arm/traps: remove debugger_trap_fatal() calls

Bobby Eshleman posted 6 patches 3 years, 3 months ago
There is a newer version of this series
[PATCH v3 1/6] arm/traps: remove debugger_trap_fatal() calls
Posted by Bobby Eshleman 3 years, 3 months ago
ARM doesn't actually use debugger_trap_* anything, and is stubbed out.

This commit simply removes the unneeded calls.

Signed-off-by: Bobby Eshleman <bobby.eshleman@gmail.com>
---
 xen/arch/arm/traps.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c
index 4ccb6e7d18..889650ba63 100644
--- a/xen/arch/arm/traps.c
+++ b/xen/arch/arm/traps.c
@@ -41,7 +41,6 @@
 #include <asm/acpi.h>
 #include <asm/cpuerrata.h>
 #include <asm/cpufeature.h>
-#include <asm/debugger.h>
 #include <asm/event.h>
 #include <asm/hsr.h>
 #include <asm/mmio.h>
@@ -1266,10 +1265,6 @@ int do_bug_frame(const struct cpu_user_regs *regs, vaddr_t pc)
 
     case BUGFRAME_bug:
         printk("Xen BUG at %s%s:%d\n", prefix, filename, lineno);
-
-        if ( debugger_trap_fatal(TRAP_invalid_op, regs) )
-            return 0;
-
         show_execution_state(regs);
         panic("Xen BUG at %s%s:%d\n", prefix, filename, lineno);
 
@@ -1281,8 +1276,6 @@ int do_bug_frame(const struct cpu_user_regs *regs, vaddr_t pc)
 
         printk("Assertion '%s' failed at %s%s:%d\n",
                predicate, prefix, filename, lineno);
-        if ( debugger_trap_fatal(TRAP_invalid_op, regs) )
-            return 0;
         show_execution_state(regs);
         panic("Assertion '%s' failed at %s%s:%d\n",
               predicate, prefix, filename, lineno);
-- 
2.32.0


Re: [PATCH v3 1/6] arm/traps: remove debugger_trap_fatal() calls
Posted by Julien Grall 3 years, 3 months ago
Hi Bobby,

On 18/08/2021 21:29, Bobby Eshleman wrote:
> ARM doesn't actually use debugger_trap_* anything, and is stubbed out.
I am guessing the plan was to add support for debugging support on Arm. 
But it never made it and it should be easy to re-introduce. So...

> This commit simply removes the unneeded calls.
> 
> Signed-off-by: Bobby Eshleman <bobby.eshleman@gmail.com>

Acked-by: Julien Grall <jgrall@amazon.com>

Cheers,

-- 
Julien Grall