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[PATCH v3 22/25] Standardize reginfo_dump_mismatch printing


From: Richard Henderson
Subject: [PATCH v3 22/25] Standardize reginfo_dump_mismatch printing
Date: Thu, 21 May 2020 19:34:37 -0700

Hoist the "master vs apprentice" label to apprentice(), since
we will want different labels for dumping.  Remove all of the
"mismatch" text from reginfo_dump_mismatch -- just print "vs".

Signed-off-by: Richard Henderson <address@hidden>
---
 risu.h                 |  4 ++--
 risu.c                 |  1 +
 risu_reginfo_aarch64.c | 12 +++++-------
 risu_reginfo_arm.c     | 18 ++++++++---------
 risu_reginfo_i386.c    |  6 +-----
 risu_reginfo_m68k.c    | 23 +++++++---------------
 risu_reginfo_ppc64.c   | 44 ++++++++++++++++++------------------------
 7 files changed, 44 insertions(+), 64 deletions(-)

diff --git a/risu.h b/risu.h
index bdb70c1..99f0d8e 100644
--- a/risu.h
+++ b/risu.h
@@ -123,8 +123,8 @@ int reginfo_is_eq(struct reginfo *r1, struct reginfo *r2);
 /* print reginfo state to a stream, returns 1 on success, 0 on failure */
 int reginfo_dump(struct reginfo *ri, FILE * f);
 
-/* reginfo_dump_mismatch: print mismatch details to a stream, ret nonzero=ok */
-int reginfo_dump_mismatch(struct reginfo *m, struct reginfo *a, FILE *f);
+/* reginfo_dump_mismatch: print mismatch details to a stream */
+void reginfo_dump_mismatch(struct reginfo *m, struct reginfo *a, FILE *f);
 
 /* return size of reginfo */
 int reginfo_size(struct reginfo *ri);
diff --git a/risu.c b/risu.c
index 1c096a8..f613fa9 100644
--- a/risu.c
+++ b/risu.c
@@ -449,6 +449,7 @@ static int apprentice(void)
         reginfo_dump(&ri[MASTER], stderr);
         fprintf(stderr, "apprentice reginfo:\n");
         reginfo_dump(&ri[APPRENTICE], stderr);
+        fprintf(stderr, "mismatch detail (master : apprentice):\n");
         reginfo_dump_mismatch(&ri[MASTER], &ri[APPRENTICE], stderr);
         return EXIT_FAILURE;
 
diff --git a/risu_reginfo_aarch64.c b/risu_reginfo_aarch64.c
index fb8e11a..b443745 100644
--- a/risu_reginfo_aarch64.c
+++ b/risu_reginfo_aarch64.c
@@ -316,15 +316,15 @@ int reginfo_dump(struct reginfo *ri, FILE * f)
     return !ferror(f);
 }
 
-/* reginfo_dump_mismatch: print mismatch details to a stream, ret nonzero=ok */
-int reginfo_dump_mismatch(struct reginfo *m, struct reginfo *a, FILE * f)
+void reginfo_dump_mismatch(struct reginfo *m, struct reginfo *a, FILE * f)
 {
     int i;
-    fprintf(f, "mismatch detail (master : apprentice):\n");
+
     if (m->faulting_insn != a->faulting_insn) {
-        fprintf(f, "  faulting insn mismatch %08x vs %08x\n",
+        fprintf(f, "  faulting insn: %08x vs %08x\n",
                 m->faulting_insn, a->faulting_insn);
     }
+
     for (i = 0; i < 31; i++) {
         if (m->regs[i] != a->regs[i]) {
             fprintf(f, "  X%-2d    : %016" PRIx64 " vs %016" PRIx64 "\n",
@@ -383,7 +383,7 @@ int reginfo_dump_mismatch(struct reginfo *m, struct reginfo 
*a, FILE * f)
                 sve_dump_preg_diff(f, vq, pm, pa);
             }
         }
-        return !ferror(f);
+        return;
     }
 #endif
 
@@ -398,6 +398,4 @@ int reginfo_dump_mismatch(struct reginfo *m, struct reginfo 
*a, FILE * f)
                     (uint64_t) a->simd.vregs[i]);
         }
     }
-
-    return !ferror(f);
 }
diff --git a/risu_reginfo_arm.c b/risu_reginfo_arm.c
index 202120b..ba1035e 100644
--- a/risu_reginfo_arm.c
+++ b/risu_reginfo_arm.c
@@ -183,32 +183,33 @@ int reginfo_dump(struct reginfo *ri, FILE *f)
     return !ferror(f);
 }
 
-int reginfo_dump_mismatch(struct reginfo *m, struct reginfo *a, FILE *f)
+void reginfo_dump_mismatch(struct reginfo *m, struct reginfo *a, FILE *f)
 {
     int i;
-    fprintf(f, "mismatch detail (master : apprentice):\n");
 
     if (m->faulting_insn_size != a->faulting_insn_size) {
-        fprintf(f, "  faulting insn size mismatch %d vs %d\n",
+        fprintf(f, "  faulting insn size: %d vs %d\n",
                 m->faulting_insn_size, a->faulting_insn_size);
     } else if (m->faulting_insn != a->faulting_insn) {
         if (m->faulting_insn_size == 2) {
-            fprintf(f, "  faulting insn mismatch %04x vs %04x\n",
+            fprintf(f, "  faulting insn: %04x vs %04x\n",
                     m->faulting_insn, a->faulting_insn);
         } else {
-            fprintf(f, "  faulting insn mismatch %08x vs %08x\n",
+            fprintf(f, "  faulting insn: %08x vs %08x\n",
                     m->faulting_insn, a->faulting_insn);
         }
     }
+
     for (i = 0; i < 16; i++) {
         if (m->gpreg[i] != a->gpreg[i]) {
-            fprintf(f, "  r%d: %08x vs %08x\n", i, m->gpreg[i],
-                    a->gpreg[i]);
+            fprintf(f, "  r%d: %08x vs %08x\n", i, m->gpreg[i], a->gpreg[i]);
         }
     }
+
     if (m->cpsr != a->cpsr) {
         fprintf(f, "  cpsr: %08x vs %08x\n", m->cpsr, a->cpsr);
     }
+
     for (i = 0; i < 32; i++) {
         if (m->fpregs[i] != a->fpregs[i]) {
             fprintf(f, "  d%d: %016llx vs %016llx\n", i,
@@ -216,9 +217,8 @@ int reginfo_dump_mismatch(struct reginfo *m, struct reginfo 
*a, FILE *f)
                     (unsigned long long) a->fpregs[i]);
         }
     }
+
     if (m->fpscr != a->fpscr) {
         fprintf(f, "  fpscr: %08x vs %08x\n", m->fpscr, a->fpscr);
     }
-
-    return !ferror(f);
 }
diff --git a/risu_reginfo_i386.c b/risu_reginfo_i386.c
index e9730be..57e4c00 100644
--- a/risu_reginfo_i386.c
+++ b/risu_reginfo_i386.c
@@ -349,14 +349,12 @@ int reginfo_dump(struct reginfo *ri, FILE *f)
     return !ferror(f);
 }
 
-int reginfo_dump_mismatch(struct reginfo *m, struct reginfo *a, FILE *f)
+void reginfo_dump_mismatch(struct reginfo *m, struct reginfo *a, FILE *f)
 {
     int i, j, n, w;
     uint64_t features;
     char r;
 
-    fprintf(f, "Mismatch (master v apprentice):\n");
-
     for (i = 0; i < NGREG; i++) {
         if (m->gregs[i] != a->gregs[i]) {
             assert(regname[i]);
@@ -399,6 +397,4 @@ int reginfo_dump_mismatch(struct reginfo *m, struct reginfo 
*a, FILE *f)
                     i, m->kregs[i], a->kregs[i]);
         }
     }
-
-    return !ferror(f);
 }
diff --git a/risu_reginfo_m68k.c b/risu_reginfo_m68k.c
index 4c25e77..29edce9 100644
--- a/risu_reginfo_m68k.c
+++ b/risu_reginfo_m68k.c
@@ -118,13 +118,12 @@ int reginfo_dump(struct reginfo *ri, FILE *f)
     return !ferror(f);
 }
 
-int reginfo_dump_mismatch(struct reginfo *m, struct reginfo *a, FILE * f)
+void reginfo_dump_mismatch(struct reginfo *m, struct reginfo *a, FILE *f)
 {
     int i;
 
     if (m->gregs[R_PS] != a->gregs[R_PS]) {
-        fprintf(f, "Mismatch: Register PS\n");
-        fprintf(f, "master: [%x] - apprentice: [%x]\n",
+        fprintf(f, "    PS: %08x vs %08x\n",
                 m->gregs[R_PS], a->gregs[R_PS]);
     }
 
@@ -133,22 +132,18 @@ int reginfo_dump_mismatch(struct reginfo *m, struct 
reginfo *a, FILE * f)
             continue;
         }
         if (m->gregs[i] != a->gregs[i]) {
-            fprintf(f, "Mismatch: Register %c%d\n", i < 8 ? 'D' : 'A',
-                    i % 8);
-            fprintf(f, "master: [%x] - apprentice: [%x]\n", m->gregs[i],
-                    a->gregs[i]);
+            fprintf(f, "    %c%d: %08x vs %08x\n",
+                    i < 8 ? 'D' : 'A', i % 8, m->gregs[i], a->gregs[i]);
         }
     }
 
     if (m->fpregs.f_pcr != a->fpregs.f_pcr) {
-        fprintf(f, "Mismatch: Register FPCR\n");
-        fprintf(f, "m: [%04x] != a: [%04x]\n",
+        fprintf(f, "  FPCR: %04x vs %04x\n",
                 m->fpregs.f_pcr, a->fpregs.f_pcr);
     }
 
     if (m->fpregs.f_psr != a->fpregs.f_psr) {
-        fprintf(f, "Mismatch: Register FPSR\n");
-        fprintf(f, "m: [%08x] != a: [%08x]\n",
+        fprintf(f, "  FPSR: %04x vs %04x\n",
                 m->fpregs.f_psr, a->fpregs.f_psr);
     }
 
@@ -156,14 +151,10 @@ int reginfo_dump_mismatch(struct reginfo *m, struct 
reginfo *a, FILE * f)
         if (m->fpregs.f_fpregs[i][0] != a->fpregs.f_fpregs[i][0] ||
             m->fpregs.f_fpregs[i][1] != a->fpregs.f_fpregs[i][1] ||
             m->fpregs.f_fpregs[i][2] != a->fpregs.f_fpregs[i][2]) {
-            fprintf(f, "Mismatch: Register FP%d\n", i);
-            fprintf(f, "m: [%08x %08x %08x] != a: [%08x %08x %08x]\n",
+            fprintf(f, "   FP%d: %08x%08x%08x vs %08x%08x%08x\n", i,
                     m->fpregs.f_fpregs[i][0], m->fpregs.f_fpregs[i][1],
                     m->fpregs.f_fpregs[i][2], a->fpregs.f_fpregs[i][0],
                     a->fpregs.f_fpregs[i][1], a->fpregs.f_fpregs[i][2]);
         }
     }
-
-
-    return !ferror(f);
 }
diff --git a/risu_reginfo_ppc64.c b/risu_reginfo_ppc64.c
index 9899b36..e96dc48 100644
--- a/risu_reginfo_ppc64.c
+++ b/risu_reginfo_ppc64.c
@@ -27,6 +27,15 @@
 const struct option * const arch_long_opts;
 const char * const arch_extra_help;
 
+static const char * const greg_names[NGREG] = {
+    "r0",  "r1",  "r2",  "r3",  "r4",  "r5",  "r6",  "r7",
+    "r8",  "r9", "r10", "r11", "r12", "r13", "r14", "r15",
+   "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
+   "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
+   [XER] = "xer",
+   [CCR] = "ccr",
+};
+
 void process_arch_opt(int opt, const char *arg)
 {
     abort();
@@ -147,35 +156,21 @@ int reginfo_dump(struct reginfo *ri, FILE * f)
     return !ferror(f);
 }
 
-int reginfo_dump_mismatch(struct reginfo *m, struct reginfo *a, FILE *f)
+void reginfo_dump_mismatch(struct reginfo *m, struct reginfo *a, FILE *f)
 {
     int i;
-    for (i = 0; i < 32; i++) {
-        if (i == 1 || i == 13) {
-            continue;
+
+    for (i = 0; i < NGREG; i++) {
+        if (greg_names[i] != NULL && m->gregs[i] != a->gregs[i]) {
+            fprintf(f, "%6s: %016lx vs %016lx\n",
+                    greg_names[i], m->gregs[i], a->gregs[i]);
         }
-
-        if (m->gregs[i] != a->gregs[i]) {
-            fprintf(f, "Mismatch: Register r%d\n", i);
-            fprintf(f, "master: [%lx] - apprentice: [%lx]\n",
-                    m->gregs[i], a->gregs[i]);
-        }
-    }
-
-    if (m->gregs[XER] != a->gregs[XER]) {
-        fprintf(f, "Mismatch: XER\n");
-        fprintf(f, "m: [%lx] != a: [%lx]\n", m->gregs[XER], a->gregs[XER]);
-    }
-
-    if (m->gregs[CCR] != a->gregs[CCR]) {
-        fprintf(f, "Mismatch: Cond. Register\n");
-        fprintf(f, "m: [%lx] != a: [%lx]\n", m->gregs[CCR], a->gregs[CCR]);
     }
 
     for (i = 0; i < 32; i++) {
         if (m->fpregs[i] != a->fpregs[i]) {
-            fprintf(f, "Mismatch: Register f%d\n", i);
-            fprintf(f, "m: [%016lx] != a: [%016lx]\n",
+            fprintf(f, "%*s%d: %016lx vs %016lx\n",
+                    6 - (i < 10 ? 1 : 2), "f", i,
                     m->fpregs[i], a->fpregs[i]);
         }
     }
@@ -186,13 +181,12 @@ int reginfo_dump_mismatch(struct reginfo *m, struct 
reginfo *a, FILE *f)
             m->vrregs.vrregs[i][2] != a->vrregs.vrregs[i][2] ||
             m->vrregs.vrregs[i][3] != a->vrregs.vrregs[i][3]) {
 
-            fprintf(f, "Mismatch: Register vr%d\n", i);
-            fprintf(f, "m: [%x, %x, %x, %x] != a: [%x, %x, %x, %x]\n",
+            fprintf(f, "%*s%d: %08x%08x%08x%08x vs %08x%08x%08x%08x\n",
+                    6 - (i < 10 ? 1 : 2), "vr", i,
                     m->vrregs.vrregs[i][0], m->vrregs.vrregs[i][1],
                     m->vrregs.vrregs[i][2], m->vrregs.vrregs[i][3],
                     a->vrregs.vrregs[i][0], a->vrregs.vrregs[i][1],
                     a->vrregs.vrregs[i][2], a->vrregs.vrregs[i][3]);
         }
     }
-    return !ferror(f);
 }
-- 
2.20.1




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