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libc: print 'not implemented' in pthread stubs

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Print a 'not implemented' debug message if one of the libc-internal
pthread dummy functions gets called.

Fixes #730.
This commit is contained in:
Christian Prochaska 2013-05-02 14:13:49 +02:00 committed by Norman Feske
parent 6f294eddc2
commit d184599a89
1 changed files with 104 additions and 0 deletions
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104
libports/src/lib/libc/patches/pthread_not_implemented.patch Normal file
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@ -0,0 +1,104 @@
Print 'not implemented' message in pthread stubs
From: Christian Prochaska <christian.prochaska@genode-labs.com>
---
libc/gen/_pthread_stubs.c | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/libc/gen/_pthread_stubs.c b/libc/gen/_pthread_stubs.c
index 063676f..c5112c5 100644
--- libc/gen/_pthread_stubs.c
+++ libc/gen/_pthread_stubs.c
@@ -30,9 +30,30 @@ __FBSDID("$FreeBSD$");
#include <signal.h>
#include <pthread.h>
#include <stdlib.h>
+#include <stdio.h>
#include "libc_private.h"
+#define ESC_DBG "\033[33m"
+#define ESC_END "\033[0m"
+
+/**
+ * Suppress debug messages in release version
+ */
+#ifdef GENODE_RELEASE
+#define DO_PDBG 0
+#else
+#define DO_PDBG 1
+#endif /* GENODE_RELEASE */
+
+/**
+ * Print debug message with function name
+ */
+#define PDBG(fmt, ...) \
+ if (DO_PDBG) \
+ printf("%s: " ESC_DBG fmt ESC_END "\n", \
+ __PRETTY_FUNCTION__, ##__VA_ARGS__ )
+
/*
* Weak symbols: All libc internal usage of these functions should
* use the weak symbol versions (_pthread_XXX). If libpthread is
@@ -138,12 +159,14 @@ pthread_func_entry_t __thr_jtable[PJT_MAX] = {
typedef ret (*FUNC_TYPE(name))(void); \
static ret FUNC_EXP(name)(void) \
{ \
+ PDBG("%s called, not implemented", #name); \
FUNC_TYPE(name) func; \
func = (FUNC_TYPE(name))__thr_jtable[idx][0]; \
return (func()); \
} \
static ret FUNC_INT(name)(void) \
{ \
+ PDBG("%s called, not implemented", #name); \
FUNC_TYPE(name) func; \
func = (FUNC_TYPE(name))__thr_jtable[idx][1]; \
return (func()); \
@@ -157,12 +180,14 @@ pthread_func_entry_t __thr_jtable[PJT_MAX] = {
typedef ret (*FUNC_TYPE(name))(p0_type); \
static ret FUNC_EXP(name)(p0_type p0) \
{ \
+ PDBG("%s called, not implemented", #name); \
FUNC_TYPE(name) func; \
func = (FUNC_TYPE(name))__thr_jtable[idx][0]; \
return (func(p0)); \
} \
static ret FUNC_INT(name)(p0_type p0) \
{ \
+ PDBG("%s called, not implemented", #name); \
FUNC_TYPE(name) func; \
func = (FUNC_TYPE(name))__thr_jtable[idx][1]; \
return (func(p0)); \
@@ -176,12 +201,14 @@ pthread_func_entry_t __thr_jtable[PJT_MAX] = {
typedef ret (*FUNC_TYPE(name))(p0_type, p1_type); \
static ret FUNC_EXP(name)(p0_type p0, p1_type p1) \
{ \
+ PDBG("%s called, not implemented", #name); \
FUNC_TYPE(name) func; \
func = (FUNC_TYPE(name))__thr_jtable[idx][0]; \
return (func(p0, p1)); \
} \
static ret FUNC_INT(name)(p0_type p0, p1_type p1) \
{ \
+ PDBG("%s called, not implemented", #name); \
FUNC_TYPE(name) func; \
func = (FUNC_TYPE(name))__thr_jtable[idx][1]; \
return (func(p0, p1)); \
@@ -195,12 +222,14 @@ pthread_func_entry_t __thr_jtable[PJT_MAX] = {
typedef ret (*FUNC_TYPE(name))(p0_type, p1_type, p2_type); \
static ret FUNC_EXP(name)(p0_type p0, p1_type p1, p2_type p2) \
{ \
+ PDBG("%s called, not implemented", #name); \
FUNC_TYPE(name) func; \
func = (FUNC_TYPE(name))__thr_jtable[idx][0]; \
return (func(p0, p1, p2)); \
} \
static ret FUNC_INT(name)(p0_type p0, p1_type p1, p2_type p2) \
{ \
+ PDBG("%s called, not implemented", #name); \
FUNC_TYPE(name) func; \
func = (FUNC_TYPE(name))__thr_jtable[idx][1]; \
return (func(p0, p1, p2)); \