commit - 45e3bd443f77e786990239ffcc74ddf62652cf33
commit + b6b8969657ce950c7f5c81ebd6d3fa6b13b1ec1c
blob - 26ef46ffc43660c026ae709769f0a8b7c1a8e6b8
blob + 1252120c9009a7e5f4baeb3d4009d826238c007a
--- tools/coverage.patch
+++ tools/coverage.patch
+diff --git a/share/man/man9/malloc.9 b/share/man/man9/malloc.9
+index 6c0e71959dd..cb6177dfa00 100644
+--- a/share/man/man9/malloc.9
++++ b/share/man/man9/malloc.9
+@@ -312,6 +312,8 @@ UDF file ID.
+ AGP memory.
+ .It Dv M_DRM
+ Direct Rendering Manager.
++.It Dv M_GCOV
++Code coverage.
+ .El
+ .Sh CONTEXT
+ .Fn malloc
diff --git a/sys/arch/amd64/conf/Makefile.amd64 b/sys/arch/amd64/conf/Makefile.amd64
-index 6d99b22..8e902cd 100644
+index d709d434b1f..065625ae1f1 100644
--- a/sys/arch/amd64/conf/Makefile.amd64
+++ b/sys/arch/amd64/conf/Makefile.amd64
-@@ -41,6 +41,9 @@ CMACHFLAGS+= -Wa,-n
+@@ -47,6 +47,9 @@ NO_INTEGR_AS= -no-integrated-as
DEBUG?= -g
COPTS?= -O2
+.if ${COVERAGE}
+COPTS+= -fprofile-arcs -ftest-coverage -O0
-+.end
++.endif
CFLAGS= ${DEBUG} ${CWARNFLAGS} ${CMACHFLAGS} ${COPTS} ${PIPE}
AFLAGS= -D_LOCORE -x assembler-with-cpp ${CWARNFLAGS} ${CMACHFLAGS}
- LDSCRIPT= ${_machdir}/conf/ld.script
-diff --git a/sys/arch/amd64/conf/ld.script b/sys/arch/amd64/conf/ld.script
-index b184a75..2a7bf68 100644
---- a/sys/arch/amd64/conf/ld.script
-+++ b/sys/arch/amd64/conf/ld.script
-@@ -92,6 +92,7 @@ SECTIONS
- __data_size = SIZEOF(.data);
- __data_load = LOADADDR(.data);
- *(.data .data.*)
-+ SORT(CONSTRUCTORS)
- } :data
- . = ALIGN(0x1000);
- PROVIDE (edata = .);
-@@ -124,4 +125,38 @@ SECTIONS
- *(.note.GNU-stack)
- *(.eh_frame)
- }
-+
-+ _start_ctors = .;
-+ PROVIDE (start_ctors = .);
-+ .ctors :
-+ {
-+ /* gcc uses crtbegin.o to find the start of
-+ the constructors, so we make sure it is
-+ first. Because this is a wildcard, it
-+ doesn't matter if the user does not
-+ actually link against crtbegin.o; the
-+ linker won't look for a file to match a
-+ wildcard. The wildcard also means that it
-+ doesn't matter which directory crtbegin.o
-+ is in. */
-+ KEEP (*crtbegin.o(.ctors))
-+ KEEP (*crtbegin?.o(.ctors))
-+ /* We don't want to include the .ctor section from
-+ the crtend.o file until after the sorted ctors.
-+ The .ctor section from the crtend file contains the
-+ end of ctors marker and it must be last */
-+ KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
-+ KEEP (*(SORT(.ctors.*)))
-+ KEEP (*(.ctors))
-+ }
-+ _stop_ctors = .;
-+ PROVIDE (stop_ctors = .);
-+ .dtors :
-+ {
-+ KEEP (*crtbegin.o(.dtors))
-+ KEEP (*crtbegin?.o(.dtors))
-+ KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
-+ KEEP (*(SORT(.dtors.*)))
-+ KEEP (*(.dtors))
-+ }
- }
+ LINKFLAGS= -T ld.script -X --warn-common -nopie
diff --git a/sys/conf/files b/sys/conf/files
-index 400bdbb..f36919c 100644
+index e948086e270..2ad000124e0 100644
--- a/sys/conf/files
+++ b/sys/conf/files
-@@ -689,6 +689,7 @@ file kern/subr_autoconf.c
+@@ -695,6 +695,7 @@ file kern/subr_autoconf.c
file kern/subr_disk.c
file kern/subr_evcount.c
file kern/subr_extent.c
file kern/subr_percpu.c
diff --git a/sys/kern/subr_gcov.c b/sys/kern/subr_gcov.c
new file mode 100644
-index 0000000..475fe83
+index 00000000000..40963c65839
--- /dev/null
+++ b/sys/kern/subr_gcov.c
-@@ -0,0 +1,208 @@
+@@ -0,0 +1,210 @@
+/*-
+ * Copyright (c) 1982, 1986, 1993
+ * The Regents of the University of California. All rights reserved.
+#include <sys/gcov.h>
+#include <sys/kernel.h>
+
-+/*
+static void
+linker_file_register_profile(linker_file_t lf)
+{
+{
+ gcov_unregister_ctors(lf);
+}
-+*/
+
+//static MALLOC_DEFINE(M_GCOV, "gcov", "GCC profile-arcs and code-coverage");
++// FreeBSD: static struct mutex gcov_mutex;
++// FreeBSD: MTX_SYSINIT(gcov_lock, &gcov_mutex, "gcov data lock", MTX_DEF);
++struct mutex gcov_mutex = MUTEX_INITIALIZER(IPL_NONE);
++mtx_init(&gcov_mutex, MTX_DEF);
+
-+static struct mutex gcov_mutex;
-+//MTX_SYSINIT(gcov_lock, &gcov_mutex, "gcov data lock", MTX_DEF);
-+//mtx_init(&gcov_mutex, MTX_DEF);
-+
-+/* This structure is used to keep track of all struct bbs associated with a
-+ * module. */
++/* This structure is used to keep track
++ * of all struct bbs associated with a module. */
+struct gcov_context
+{
+ LIST_ENTRY(gcov_context) gcov_link;
+ * change gcov_type *counts to void *
+ */
+/* Structure emitted by --profile-arcs */
++
+struct bb
+{
+ long zero_word;
+ int bbcount;
+ struct gcov_context *context;
+ ctor_t* ctor;
-+
++
+ bbcount = stop - start;
-+
++
+/*
++ FreeBSD:
+ MALLOC(context, struct gcov_context *,
+ sizeof(struct gcov_context) + bbcount * sizeof(struct bb *),
+ M_GCOV, M_WAITOK);
+*/
-+ //mtx_lock(&gcov_mutex);
++ // FreeBSD: mtx_lock(&gcov_mutex);
++ // FreeBSD: KASSERT(current_context == NULL, ("current gcov context is not NULL"));
++ malloc(sizeof(struct gcov_context) + bbcount * sizeof(struct bb *), M_GCOV | M_WAITOK)
+ mtx_enter(&gcov_mutex);
-+ //KASSERT(current_context == NULL, ("current gcov context is not NULL"));
++ KASSERT(current_context == NULL);
+ current_context = context;
+ current_context->lf = lf;
+ current_context->count = 0;
+ for (ctor = start; ctor < stop; ctor++)
+ if (*ctor != NULL)
+ (*ctor)();
-+
++
+ current_context = NULL;
+ mtx_leave(&gcov_mutex);
+}
+ /* remove the each bb from the bb_head list */
+ struct bb *prev = NULL, *bb;
+ int i;
-+
++
+ for (bb = bb_head; bb ; bb = bb->next) {
+ for (i = 0; i < context->count; i++) {
+ if (context->bb[i] == bb) {
+ return;
+ }
+ }
-+
++
+ mtx_leave(&gcov_mutex);
+}
diff --git a/sys/sys/gcov.h b/sys/sys/gcov.h
new file mode 100644
-index 0000000..854be47
+index 00000000000..a5fc28dc987
--- /dev/null
+++ b/sys/sys/gcov.h
@@ -0,0 +1,57 @@
+/*-
-+ * Copyright (c) 1995
++ * Copyright (c) 1995
+ * All rights reserved.
+ *
+ * Copyright (c) 1990, 1993
+extern void gcov_register_ctors(struct linker_file *, ctor_t *, ctor_t *);
+extern void gcov_unregister_ctors(struct linker_file *);
+#endif
+diff --git a/sys/sys/malloc.h b/sys/sys/malloc.h
+index e5fb2caa906..be1f7573c5b 100644
+--- a/sys/sys/malloc.h
++++ b/sys/sys/malloc.h
+@@ -181,7 +181,9 @@
+
+ #define M_DRM 145 /* Direct Rendering Manager */
+
+-#define M_LAST 146 /* Must be last type + 1 */
++#define M_GCOV 146 /* Code coverage */
++
++#define M_LAST 147 /* Must be last type + 1 */
+
+ #define INITKMEMNAMES { \
+ "free", /* 0 M_FREE */ \
+@@ -314,6 +316,7 @@
+ NULL, /* 143 free */ \
+ "AGP Memory", /* 144 M_AGP */ \
+ "DRM", /* 145 M_DRM */ \
++ "GCOV", /* 146 M_GCOV */ \
+ }
+
+ struct kmemstats {
