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Re: [Xen-devel] [PATCH 1/2] introduce gprintk()



On Fri, 2015-03-20 at 15:12 +0000, Jan Beulich wrote:
> ... and convert several gdprintk()-s to it, as the next patch will make
> them no-ops in non-debug builds.
> 
> Note that as a non-debug facility this does not print file name and
> line number of the origin, to people are expected to use meaningful and
> easily distinguishable messages (i.e. just like with plain printk()).
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>

> ---
> Note: ARM code was not touched.

I've done a pass, this goes after this series.

8<-----


From 6a979279a489d60d29d12ff8639689e224e0bfdf Mon Sep 17 00:00:00 2001
From: Ian Campbell <ian.campbell@xxxxxxxxxx>
Date: Tue, 24 Mar 2015 14:17:40 +0000
Subject: [PATCH] xen: arm: use gprintk as appropriate

gdprintk is now only included with debug=y builds. Therefore:
 - switch some uses to gprintk
 - remove some now redundant #ifndef NDEBUG surrounding existing
   gdprintk uses.

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
 xen/arch/arm/decode.c  |    6 +++---
 xen/arch/arm/traps.c   |   20 +++-----------------
 xen/arch/arm/vgic-v3.c |    4 ++--
 xen/arch/arm/vgic.c    |   10 +++++-----
 xen/arch/arm/vtimer.c  |    2 +-
 5 files changed, 14 insertions(+), 28 deletions(-)

diff --git a/xen/arch/arm/decode.c b/xen/arch/arm/decode.c
index 9d237f8..c6f49a5 100644
--- a/xen/arch/arm/decode.c
+++ b/xen/arch/arm/decode.c
@@ -78,7 +78,7 @@ static int decode_thumb2(register_t pc, struct hsr_dabt 
*dabt, uint16_t hw1)
     return 0;
 
 bad_thumb2:
-    gdprintk(XENLOG_ERR, "unhandled THUMB2 instruction 0x%x%x\n", hw1, hw2);
+    gprintk(XENLOG_ERR, "unhandled THUMB2 instruction 0x%x%x\n", hw1, hw2);
 
     return 1;
 }
@@ -145,7 +145,7 @@ static int decode_thumb(register_t pc, struct hsr_dabt 
*dabt)
     return 0;
 
 bad_thumb:
-    gdprintk(XENLOG_ERR, "unhandled THUMB instruction 0x%x\n", instr);
+    gprintk(XENLOG_ERR, "unhandled THUMB instruction 0x%x\n", instr);
     return 1;
 }
 
@@ -155,7 +155,7 @@ int decode_instruction(const struct cpu_user_regs *regs, 
struct hsr_dabt *dabt)
         return decode_thumb(regs->pc, dabt);
 
     /* TODO: Handle ARM instruction */
-    gdprintk(XENLOG_ERR, "unhandled ARM instruction\n");
+    gprintk(XENLOG_ERR, "unhandled ARM instruction\n");
 
     return 1;
 }
diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c
index 89cbde6..7216daf 100644
--- a/xen/arch/arm/traps.c
+++ b/xen/arch/arm/traps.c
@@ -1674,14 +1674,12 @@ static void do_cp15_32(struct cpu_user_regs *regs,
         break;
 
     default:
-#ifndef NDEBUG
         gdprintk(XENLOG_ERR,
                  "%s p15, %d, r%d, cr%d, cr%d, %d @ 0x%"PRIregister"\n",
                  cp32.read ? "mrc" : "mcr",
                  cp32.op1, cp32.reg, cp32.crn, cp32.crm, cp32.op2, regs->pc);
         gdprintk(XENLOG_ERR, "unhandled 32-bit CP15 access %#x\n",
                  hsr.bits & HSR_CP32_REGS_MASK);
-#endif
         inject_undef_exception(regs, hsr.len);
         return;
     }
@@ -1709,7 +1707,6 @@ static void do_cp15_64(struct cpu_user_regs *regs,
         break;
     default:
         {
-#ifndef NDEBUG
             struct hsr_cp64 cp64 = hsr.cp64;
 
             gdprintk(XENLOG_ERR,
@@ -1718,7 +1715,6 @@ static void do_cp15_64(struct cpu_user_regs *regs,
                      cp64.op1, cp64.reg1, cp64.reg2, cp64.crm, regs->pc);
             gdprintk(XENLOG_ERR, "unhandled 64-bit CP15 access %#x\n",
                      hsr.bits & HSR_CP64_REGS_MASK);
-#endif
             inject_undef_exception(regs, hsr.len);
             return;
         }
@@ -1780,14 +1776,12 @@ static void do_cp14_32(struct cpu_user_regs *regs, 
union hsr hsr)
 
     default:
 bad_cp:
-#ifndef NDEBUG
         gdprintk(XENLOG_ERR,
                  "%s p14, %d, r%d, cr%d, cr%d, %d @ 0x%"PRIregister"\n",
                   cp32.read ? "mrc" : "mcr",
                   cp32.op1, cp32.reg, cp32.crn, cp32.crm, cp32.op2, regs->pc);
         gdprintk(XENLOG_ERR, "unhandled 32-bit cp14 access %#x\n",
                  hsr.bits & HSR_CP32_REGS_MASK);
-#endif
         inject_undef_exception(regs, hsr.len);
         return;
     }
@@ -1797,9 +1791,7 @@ bad_cp:
 
 static void do_cp14_dbg(struct cpu_user_regs *regs, union hsr hsr)
 {
-#ifndef NDEBUG
     struct hsr_cp64 cp64 = hsr.cp64;
-#endif
 
     if ( !check_conditional_instr(regs, hsr) )
     {
@@ -1807,22 +1799,19 @@ static void do_cp14_dbg(struct cpu_user_regs *regs, 
union hsr hsr)
         return;
     }
 
-#ifndef NDEBUG
     gdprintk(XENLOG_ERR,
              "%s p14, %d, r%d, r%d, cr%d @ 0x%"PRIregister"\n",
              cp64.read ? "mrrc" : "mcrr",
              cp64.op1, cp64.reg1, cp64.reg2, cp64.crm, regs->pc);
     gdprintk(XENLOG_ERR, "unhandled 64-bit CP14 access %#x\n",
              hsr.bits & HSR_CP64_REGS_MASK);
-#endif
+
     inject_undef_exception(regs, hsr.len);
 }
 
 static void do_cp(struct cpu_user_regs *regs, union hsr hsr)
 {
-#ifndef NDEBUG
     struct hsr_cp cp = hsr.cp;
-#endif
 
     if ( !check_conditional_instr(regs, hsr) )
     {
@@ -1830,10 +1819,8 @@ static void do_cp(struct cpu_user_regs *regs, union hsr 
hsr)
         return;
     }
 
-#ifndef NDEBUG
     ASSERT(!cp.tas); /* We don't trap SIMD instruction */
     gdprintk(XENLOG_ERR, "unhandled CP%d access\n", cp.coproc);
-#endif
     inject_undef_exception(regs, hsr.len);
 }
 
@@ -1910,7 +1897,6 @@ static void do_sysreg(struct cpu_user_regs *regs,
  bad_sysreg:
         {
             struct hsr_sysreg sysreg = hsr.sysreg;
-#ifndef NDEBUG
 
             gdprintk(XENLOG_ERR,
                      "%s %d, %d, c%d, c%d, %d %s x%d @ 0x%"PRIregister"\n",
@@ -1922,7 +1908,7 @@ static void do_sysreg(struct cpu_user_regs *regs,
                      sysreg.reg, regs->pc);
             gdprintk(XENLOG_ERR, "unhandled 64-bit sysreg access %#x\n",
                      hsr.bits & HSR_SYSREG_REGS_MASK);
-#endif
+
             inject_undef_exception(regs, sysreg.len);
             return;
         }
@@ -2035,7 +2021,7 @@ static void do_trap_data_abort_guest(struct cpu_user_regs 
*regs,
         rc = decode_instruction(regs, &info.dabt);
         if ( rc )
         {
-            gdprintk(XENLOG_DEBUG, "Unable to decode instruction\n");
+            gprintk(XENLOG_DEBUG, "Unable to decode instruction\n");
             goto bad_data_abort;
         }
     }
diff --git a/xen/arch/arm/vgic-v3.c b/xen/arch/arm/vgic-v3.c
index ec79c2a..81fbb26 100644
--- a/xen/arch/arm/vgic-v3.c
+++ b/xen/arch/arm/vgic-v3.c
@@ -1022,7 +1022,7 @@ static int vgic_v3_to_sgi(struct vcpu *v, register_t sgir)
         sgi_mode = SGI_TARGET_OTHERS;
         break;
     default:
-        gdprintk(XENLOG_WARNING, "Wrong irq mode in SGI1R_EL1 register\n");
+        gprintk(XENLOG_WARNING, "Wrong irq mode in SGI1R_EL1 register\n");
         return 0;
     }
 
@@ -1050,7 +1050,7 @@ static int vgic_v3_emulate_sysreg(struct cpu_user_regs 
*regs, union hsr hsr)
             return vgic_v3_to_sgi(v, *r);
         else
         {
-            gdprintk(XENLOG_WARNING, "Reading SGI1R_EL1 - WO register\n");
+            gprintk(XENLOG_WARNING, "Reading SGI1R_EL1 - WO register\n");
             return 0;
         }
     default:
diff --git a/xen/arch/arm/vgic.c b/xen/arch/arm/vgic.c
index c14d79d..7b27900 100644
--- a/xen/arch/arm/vgic.c
+++ b/xen/arch/arm/vgic.c
@@ -337,9 +337,9 @@ int vgic_to_sgi(struct vcpu *v, register_t sgir, enum 
gic_sgi_mode irqmode, int
         set_bit(current->vcpu_id, &vcpu_mask);
         break;
     default:
-        gdprintk(XENLOG_WARNING,
-                 "vGICD:unhandled GICD_SGIR write %"PRIregister" \
-                  with wrong mode\n", sgir);
+        gprintk(XENLOG_WARNING,
+                "vGICD:unhandled GICD_SGIR write %"PRIregister" \
+                 with wrong mode\n", sgir);
         return 0;
     }
 
@@ -347,8 +347,8 @@ int vgic_to_sgi(struct vcpu *v, register_t sgir, enum 
gic_sgi_mode irqmode, int
     {
         if ( d->vcpu[vcpuid] != NULL && !is_vcpu_online(d->vcpu[vcpuid]) )
         {
-            gdprintk(XENLOG_WARNING, "VGIC: write r=%"PRIregister" \
-                     vcpu_mask=%lx, wrong CPUTargetList\n", sgir, vcpu_mask);
+            gprintk(XENLOG_WARNING, "VGIC: write r=%"PRIregister" \
+                    vcpu_mask=%lx, wrong CPUTargetList\n", sgir, vcpu_mask);
             continue;
         }
         vgic_vcpu_inject_irq(d->vcpu[vcpuid], virq);
diff --git a/xen/arch/arm/vtimer.c b/xen/arch/arm/vtimer.c
index 4427ae5..287bb93 100644
--- a/xen/arch/arm/vtimer.c
+++ b/xen/arch/arm/vtimer.c
@@ -217,7 +217,7 @@ static int vtimer_cntpct(struct cpu_user_regs *regs, 
uint64_t *r, int read)
     }
     else
     {
-        gdprintk(XENLOG_DEBUG, "WRITE to R/O CNTPCT\n");
+        gprintk(XENLOG_DEBUG, "WRITE to R/O CNTPCT\n");
         return 0;
     }
 }
-- 
1.7.10.4




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