r600g/sb: get rid of standard c++ streams

Static initialization of internal libstdc++ data related to iostream
causes segfaults with some apps.

This patch replaces all uses of std::ostream and std::ostringstream in sb
with custom lightweight classes.

Prevents segfaults with ut2004demo and probably some other old apps.

Signed-off-by: Vadim Girlin <[email protected]>

24 files changed, 592 insertions, 545 deletions

diff --git a/src/gallium/drivers/r600/sb/sb_bc.h b/src/gallium/drivers/r600/sb/sb_bc.h
index 9f65098848d..8b932634c55 100644
--- a/src/gallium/drivers/r600/sb/sb_bc.h
+++ b/src/gallium/drivers/r600/sb/sb_bc.h
@@ -32,9 +32,10 @@ extern "C" {
 #include "r600_isa.h"
 }
 
+#include <cstdio>
+#include <string>
 #include <vector>
 #include <stack>
-#include <ostream>
 
 struct r600_bytecode;
 struct r600_shader;
@@ -50,6 +51,120 @@ class alu_group_node;
 class region_node;
 class shader;
 
+class sb_ostream {
+public:
+	sb_ostream() {}
+
+	virtual void write(const char *s) = 0;
+
+	sb_ostream& operator <<(const char *s) {
+		write(s);
+		return *this;
+	}
+
+	sb_ostream& operator <<(const std::string& s) {
+		return *this << s.c_str();
+	}
+
+	sb_ostream& operator <<(void *p) {
+		char b[32];
+		sprintf(b, "%p", p);
+		return *this << b;
+	}
+
+	sb_ostream& operator <<(char c) {
+		char b[2];
+		sprintf(b, "%c", c);
+		return *this << b;
+	}
+
+	sb_ostream& operator <<(int n) {
+		char b[32];
+		sprintf(b, "%d", n);
+		return *this << b;
+	}
+
+	sb_ostream& operator <<(unsigned n) {
+		char b[32];
+		sprintf(b, "%u", n);
+		return *this << b;
+	}
+
+	sb_ostream& operator <<(double d) {
+		char b[32];
+		sprintf(b, "%f", d);
+		return *this << b;
+	}
+
+	// print as field of specified width, right aligned
+	void print_w(int n, int width) {
+		char b[256],f[8];
+		sprintf(f, "%%%dd", width);
+		snprintf(b, 256, f, n);
+		write(b);
+	}
+
+	// print as field of specified width, left aligned
+	void print_wl(int n, int width) {
+		char b[256],f[8];
+		sprintf(f, "%%-%dd", width);
+		snprintf(b, 256, f, n);
+		write(b);
+	}
+
+	// print as field of specified width, left aligned
+	void print_wl(const std::string &s, int width) {
+		write(s.c_str());
+		int l = s.length();
+		while (l++ < width) {
+			write(" ");
+		}
+	}
+
+	// print int as field of specified width, right aligned, zero-padded
+	void print_zw(int n, int width) {
+		char b[256],f[8];
+		sprintf(f, "%%0%dd", width);
+		snprintf(b, 256, f, n);
+		write(b);
+	}
+
+	// print int as field of specified width, right aligned, zero-padded, hex
+	void print_zw_hex(int n, int width) {
+		char b[256],f[8];
+		sprintf(f, "%%0%dx", width);
+		snprintf(b, 256, f, n);
+		write(b);
+	}
+};
+
+class sb_ostringstream : public sb_ostream {
+	std::string data;
+public:
+	sb_ostringstream() : data() {}
+
+	virtual void write(const char *s) {
+		data += s;
+	}
+
+	void clear() { data.clear(); }
+
+	const char* c_str() { return data.c_str(); }
+	std::string& str() { return data; }
+};
+
+class sb_log : public sb_ostream {
+	FILE *o;
+public:
+	sb_log() : o(stderr) {}
+
+	virtual void write(const char *s) {
+		fputs(s, o);
+	}
+};
+
+extern sb_log sblog;
+
 enum shader_target
 {
 	TARGET_UNKNOWN,
@@ -477,8 +592,8 @@ struct shader_stats {
 
 	void collect(node *n);
 	void accumulate(shader_stats &s);
-	void dump(std::ostream &o);
-	void dump_diff(std::ostream &o, shader_stats &s);
+	void dump();
+	void dump_diff(shader_stats &s);
 };
 
 class sb_context {
diff --git a/src/gallium/drivers/r600/sb/sb_bc_builder.cpp b/src/gallium/drivers/r600/sb/sb_bc_builder.cpp
index f40e4694b8d..55e2a8508ec 100644
--- a/src/gallium/drivers/r600/sb/sb_bc_builder.cpp
+++ b/src/gallium/drivers/r600/sb/sb_bc_builder.cpp
@@ -24,17 +24,12 @@
  *      Vadim Girlin
  */
 
-#include <iostream>
-#include <sstream>
-
 #include "sb_bc.h"
 #include "sb_shader.h"
 #include "sb_pass.h"
 
 namespace r600_sb {
 
-using std::cerr;
-
 bc_builder::bc_builder(shader &s)
 	: sh(s), ctx(s.get_ctx()), bb(ctx.hw_class_bit()), error(0) {}
 
diff --git a/src/gallium/drivers/r600/sb/sb_bc_decoder.cpp b/src/gallium/drivers/r600/sb/sb_bc_decoder.cpp
index 273969f473b..5e233f982ea 100644
--- a/src/gallium/drivers/r600/sb/sb_bc_decoder.cpp
+++ b/src/gallium/drivers/r600/sb/sb_bc_decoder.cpp
@@ -24,8 +24,6 @@
  *      Vadim Girlin
  */
 
-#include "sstream"
-
 #include "sb_bc.h"
 
 namespace r600_sb {
diff --git a/src/gallium/drivers/r600/sb/sb_bc_dump.cpp b/src/gallium/drivers/r600/sb/sb_bc_dump.cpp
index 28ae32c2300..9d76465b36f 100644
--- a/src/gallium/drivers/r600/sb/sb_bc_dump.cpp
+++ b/src/gallium/drivers/r600/sb/sb_bc_dump.cpp
@@ -24,9 +24,6 @@
  *      Vadim Girlin
  */
 
-#include <sstream>
-#include <iomanip>
-
 #include "sb_bc.h"
 #include "sb_shader.h"
 #include "sb_pass.h"
@@ -52,7 +49,7 @@ bool bc_dump::visit(cf_node& n, bool enter) {
 		if ((n.bc.op_ptr->flags & CF_ALU) && n.bc.is_alu_extended()) {
 			dump_dw(id, 2);
 			id += 2;
-			o << "\n";
+			sblog << "\n";
 		}
 
 		dump_dw(id, 2);
@@ -68,13 +65,14 @@ bool bc_dump::visit(cf_node& n, bool enter) {
 
 bool bc_dump::visit(alu_node& n, bool enter) {
 	if (enter) {
-		o << " ";
+		sblog << " ";
 		dump_dw(id, 2);
 
-		if (new_group)
-			o << std::setw(5) << ++group_index << " ";
-		else
-			o << "      ";
+		if (new_group) {
+			sblog.print_w(++group_index, 5);
+			sblog << " ";
+		} else
+			sblog << "      ";
 
 		dump(n);
 		id += 2;
@@ -86,10 +84,10 @@ bool bc_dump::visit(alu_node& n, bool enter) {
 					static_cast<alu_group_node*>(n.get_alu_group_node());
 			assert(g);
 			for (unsigned k = 0; k < g->literals.size(); ++k) {
-				o << " ";
+				sblog << " ";
 				dump_dw(id, 1);
 				id += 1;
-				o << "\n";
+				sblog << "\n";
 			}
 
 			id = (id + 1) & ~1u;
@@ -101,7 +99,7 @@ bool bc_dump::visit(alu_node& n, bool enter) {
 
 bool bc_dump::visit(fetch_node& n, bool enter) {
 	if (enter) {
-		o << " ";
+		sblog << " ";
 		dump_dw(id, 3);
 		dump(n);
 		id += 4;
@@ -109,31 +107,31 @@ bool bc_dump::visit(fetch_node& n, bool enter) {
 	return false;
 }
 
-static void fill_to(std::ostringstream &s, int pos) {
+static void fill_to(sb_ostringstream &s, int pos) {
 	int l = s.str().length();
 	if (l < pos)
 		s << std::string(pos-l, ' ');
 }
 
 void bc_dump::dump(cf_node& n) {
-	std::ostringstream s;
+	sb_ostringstream s;
 	s << n.bc.op_ptr->name;
 
 	if (n.bc.op_ptr->flags & CF_EXP) {
 		static const char *exp_type[] = {"PIXEL", "POS  ", "PARAM"};
 
 		fill_to(s, 18);
-		s << " " << exp_type[n.bc.type];
+		s << " " << exp_type[n.bc.type] << " ";
 
 		if (n.bc.burst_count) {
-			std::ostringstream s2;
+			sb_ostringstream s2;
 			s2 << n.bc.array_base << "-" << n.bc.array_base + n.bc.burst_count;
-			s << " " << std::setw(5) << std::left << s2.str();
-			s << "R" << n.bc.rw_gpr << "-" <<
+			s.print_wl(s2.str(), 5);
+			s << " R" << n.bc.rw_gpr << "-" <<
 					n.bc.rw_gpr + n.bc.burst_count << ".";
 		} else {
-			s << " " << std::setw(5) << std::left << n.bc.array_base;
-			s << "R" << n.bc.rw_gpr << ".";
+			s.print_wl(n.bc.array_base, 5);
+			s << " R" << n.bc.rw_gpr << ".";
 		}
 
 		for (int k = 0; k < 4; ++k)
@@ -143,9 +141,9 @@ void bc_dump::dump(cf_node& n) {
 		static const char *exp_type[] = {"WRITE", "WRITE_IND", "WRITE_ACK",
 				"WRITE_IND_ACK"};
 		fill_to(s, 18);
-		s << " " << exp_type[n.bc.type];
-		s << " " << std::setw(5) << std::left << n.bc.array_base;
-		s << "R" << n.bc.rw_gpr << ".";
+		s << " " << exp_type[n.bc.type] << " ";
+		s.print_wl(n.bc.array_base, 5);
+		s << " R" << n.bc.rw_gpr << ".";
 		for (int k = 0; k < 4; ++k)
 			s << ((n.bc.comp_mask & (1 << k)) ? chans[k] : '_');
 
@@ -194,11 +192,11 @@ void bc_dump::dump(cf_node& n) {
 	if (n.bc.end_of_program)
 		s << "  EOP";
 
-	o << s.str() << "\n";
+	sblog << s.str() << "\n";
 }
 
 
-static void print_sel(std::ostream &s, int sel, int rel, int index_mode,
+static void print_sel(sb_ostream &s, int sel, int rel, int index_mode,
                       int need_brackets) {
 	if (rel && index_mode >= 5 && sel < 128)
 		s << "G";
@@ -217,7 +215,7 @@ static void print_sel(std::ostream &s, int sel, int rel, int index_mode,
 	}
 }
 
-static void print_dst(std::ostream &s, bc_alu &alu)
+static void print_dst(sb_ostream &s, bc_alu &alu)
 {
 	unsigned sel = alu.dst_gpr;
 	char reg_char = 'R';
@@ -236,7 +234,7 @@ static void print_dst(std::ostream &s, bc_alu &alu)
 	s << chans[alu.dst_chan];
 }
 
-static void print_src(std::ostream &s, bc_alu &alu, unsigned idx)
+static void print_src(sb_ostream &s, bc_alu &alu, unsigned idx)
 {
 	bc_alu_src *src = &alu.src[idx];
 	unsigned sel = src->sel, need_sel = 1, need_chan = 1, need_brackets = 0;
@@ -282,10 +280,9 @@ static void print_src(std::ostream &s, bc_alu &alu, unsigned idx)
 			need_chan = 1;
 			break;
 		case ALU_SRC_LITERAL:
-			s << "[" << std::hex << std::setfill('0') << std::setw(8)
-				<< std::showbase << src->value.u << " "
-				<< std::noshowbase << std::setfill(' ') << std::dec
-				<< src->value.f << "]";
+			s << "[0x";
+			s.print_zw_hex(src->value.u, 8);
+			s << " " << src->value.f << "]";
 			need_chan = 1;
 			break;
 		case ALU_SRC_0_5:
@@ -320,14 +317,14 @@ static void print_src(std::ostream &s, bc_alu &alu, unsigned idx)
 		s << "|";
 }
 void bc_dump::dump(alu_node& n) {
-	std::ostringstream s;
+	sb_ostringstream s;
 	static const char *omod_str[] = {"","*2","*4","/2"};
 	static const char *slots = "xyzwt";
 
-	s << (n.bc.update_exec_mask ? 'M' : ' ');
-	s << (n.bc.update_pred ? 'P' : ' ');
+	s << (n.bc.update_exec_mask ? "M" : " ");
+	s << (n.bc.update_pred ? "P" : " ");
 	s << " ";
-	s << (n.bc.pred_sel>=2 ? (n.bc.pred_sel == 2 ? '0' : '1') : ' ');
+	s << (n.bc.pred_sel>=2 ? (n.bc.pred_sel == 2 ? "0" : "1") : " ");
 	s << " ";
 
 	s << slots[n.bc.slot] << ": ";
@@ -350,11 +347,11 @@ void bc_dump::dump(alu_node& n) {
 			s << "  " << vec_bs[n.bc.bank_swizzle];
 	}
 
-	o << s.str() << "\n";
+	sblog << s.str() << "\n";
 }
 
 int bc_dump::init() {
-	std::ostringstream s;
+	sb_ostringstream s;
 	s << "===== SHADER #" << sh.id;
 
 	if (sh.optimized)
@@ -370,9 +367,9 @@ int bc_dump::init() {
 
 	s << target;
 
-	o << "\n" << s.str() << "\n";
+	sblog << "\n" << s.str() << "\n";
 
-	s.str(std::string());
+	s.clear();
 
 	if (bc_data) {
 		s << "===== " << ndw << " dw ===== " << sh.ngpr
@@ -382,25 +379,25 @@ int bc_dump::init() {
 	while (s.str().length() < 80)
 		s << "=";
 
-	o << s.str() << "\n";
+	sblog << s.str() << "\n";
 
 	return 0;
 }
 
 int bc_dump::done() {
-	std::ostringstream s;
+	sb_ostringstream s;
 	s << "===== SHADER_END ";
 
 	while (s.str().length() < 80)
 		s << "=";
 
-	o << s.str() << "\n\n";
+	sblog << s.str() << "\n\n";
 
 	return 0;
 }
 
-bc_dump::bc_dump(shader& s, std::ostream& o, bytecode* bc)  :
-	vpass(s), o(o), bc_data(), ndw(), id(),
+bc_dump::bc_dump(shader& s, bytecode* bc)  :
+	vpass(s), bc_data(), ndw(), id(),
 	new_group(), group_index() {
 
 	if (bc) {
@@ -410,7 +407,7 @@ bc_dump::bc_dump(shader& s, std::ostream& o, bytecode* bc)  :
 }
 
 void bc_dump::dump(fetch_node& n) {
-	std::ostringstream s;
+	sb_ostringstream s;
 	static const char * fetch_type[] = {"VERTEX", "INSTANCE", ""};
 
 	s << n.bc.op_ptr->name;
@@ -462,7 +459,7 @@ void bc_dump::dump(fetch_node& n) {
 				s << " O" << chans[k] << ":" << n.bc.offset[k];
 	}
 
-	o << s.str() << "\n";
+	sblog << s.str() << "\n";
 }
 
 void bc_dump::dump_dw(unsigned dw_id, unsigned count) {
@@ -471,11 +468,12 @@ void bc_dump::dump_dw(unsigned dw_id, unsigned count) {
 
 	assert(dw_id + count <= ndw);
 
-	o << std::setfill('0') << std::setw(4) << dw_id << "  ";
+	sblog.print_zw(dw_id, 4);
+	sblog << "  ";
 	while (count--) {
-		o << std::setw(8) << std::hex << bc_data[dw_id++] << " ";
+		sblog.print_zw_hex(bc_data[dw_id++], 8);
+		sblog << " ";
 	}
-	o << std::setfill(' ') << std::dec;
 }
 
 } // namespace r600_sb
diff --git a/src/gallium/drivers/r600/sb/sb_bc_finalize.cpp b/src/gallium/drivers/r600/sb/sb_bc_finalize.cpp
index c883e5e5a67..c56c866bafc 100644
--- a/src/gallium/drivers/r600/sb/sb_bc_finalize.cpp
+++ b/src/gallium/drivers/r600/sb/sb_bc_finalize.cpp
@@ -32,18 +32,12 @@
 #define FBC_DUMP(q)
 #endif
 
-#include <iostream>
-
 #include "sb_bc.h"
-
 #include "sb_shader.h"
-
 #include "sb_pass.h"
 
 namespace r600_sb {
 
-using std::cerr;
-
 int bc_finalizer::run() {
 
 	regions_vec &rv = sh.get_regions();
@@ -294,9 +288,9 @@ void bc_finalizer::finalize_alu_src(alu_group_node* g, alu_node* a) {
 	vvec &sv = a->src;
 
 	FBC_DUMP(
-		cerr << "finalize_alu_src: ";
+		sblog << "finalize_alu_src: ";
 		dump::dump_op(a);
-		cerr << "\n";
+		sblog << "\n";
 	);
 
 	unsigned si = 0;
@@ -417,9 +411,9 @@ void bc_finalizer::emit_set_grad(fetch_node* f) {
 				else if (l == literal(1.0f))
 					sel = SEL_1;
 				else {
-					cerr << "invalid fetch constant operand  " << chan << " ";
+					sblog << "invalid fetch constant operand  " << chan << " ";
 					dump::dump_op(f);
-					cerr << "\n";
+					sblog << "\n";
 					abort();
 				}
 
@@ -430,18 +424,18 @@ void bc_finalizer::emit_set_grad(fetch_node* f) {
 				if (reg == -1)
 					reg = vreg;
 				else if ((unsigned)reg != vreg) {
-					cerr << "invalid fetch source operand  " << chan << " ";
+					sblog << "invalid fetch source operand  " << chan << " ";
 					dump::dump_op(f);
-					cerr << "\n";
+					sblog << "\n";
 					abort();
 				}
 
 				sel = vchan;
 
 			} else {
-				cerr << "invalid fetch source operand  " << chan << " ";
+				sblog << "invalid fetch source operand  " << chan << " ";
 				dump::dump_op(f);
-				cerr << "\n";
+				sblog << "\n";
 				abort();
 			}
 
@@ -492,9 +486,9 @@ void bc_finalizer::finalize_fetch(fetch_node* f) {
 			else if (l == literal(1.0f))
 				sel = SEL_1;
 			else {
-				cerr << "invalid fetch constant operand  " << chan << " ";
+				sblog << "invalid fetch constant operand  " << chan << " ";
 				dump::dump_op(f);
-				cerr << "\n";
+				sblog << "\n";
 				abort();
 			}
 
@@ -505,18 +499,18 @@ void bc_finalizer::finalize_fetch(fetch_node* f) {
 			if (reg == -1)
 				reg = vreg;
 			else if ((unsigned)reg != vreg) {
-				cerr << "invalid fetch source operand  " << chan << " ";
+				sblog << "invalid fetch source operand  " << chan << " ";
 				dump::dump_op(f);
-				cerr << "\n";
+				sblog << "\n";
 				abort();
 			}
 
 			sel = vchan;
 
 		} else {
-			cerr << "invalid fetch source operand  " << chan << " ";
+			sblog << "invalid fetch source operand  " << chan << " ";
 			dump::dump_op(f);
-			cerr << "\n";
+			sblog << "\n";
 			abort();
 		}
 
@@ -552,18 +546,18 @@ void bc_finalizer::finalize_fetch(fetch_node* f) {
 			if (reg == -1)
 				reg = vreg;
 			else if ((unsigned)reg != vreg) {
-				cerr << "invalid fetch dst operand  " << chan << " ";
+				sblog << "invalid fetch dst operand  " << chan << " ";
 				dump::dump_op(f);
-				cerr << "\n";
+				sblog << "\n";
 				abort();
 			}
 
 			dst_swz[vchan] = sel;
 
 		} else {
-			cerr << "invalid fetch dst operand  " << chan << " ";
+			sblog << "invalid fetch dst operand  " << chan << " ";
 			dump::dump_op(f);
-			cerr << "\n";
+			sblog << "\n";
 			abort();
 		}
 
@@ -615,9 +609,9 @@ void bc_finalizer::finalize_cf(cf_node* c) {
 				else if (l == literal(1.0f))
 					sel = SEL_1;
 				else {
-					cerr << "invalid export constant operand  " << chan << " ";
+					sblog << "invalid export constant operand  " << chan << " ";
 					dump::dump_op(c);
-					cerr << "\n";
+					sblog << "\n";
 					abort();
 				}
 
@@ -628,18 +622,18 @@ void bc_finalizer::finalize_cf(cf_node* c) {
 				if (reg == -1)
 					reg = vreg;
 				else if ((unsigned)reg != vreg) {
-					cerr << "invalid export source operand  " << chan << " ";
+					sblog << "invalid export source operand  " << chan << " ";
 					dump::dump_op(c);
-					cerr << "\n";
+					sblog << "\n";
 					abort();
 				}
 
 				sel = vchan;
 
 			} else {
-				cerr << "invalid export source operand  " << chan << " ";
+				sblog << "invalid export source operand  " << chan << " ";
 				dump::dump_op(c);
-				cerr << "\n";
+				sblog << "\n";
 				abort();
 			}
 
@@ -662,18 +656,18 @@ void bc_finalizer::finalize_cf(cf_node* c) {
 				continue;
 
 			if (!v->is_any_gpr() || v->gpr.chan() != chan) {
-				cerr << "invalid source operand  " << chan << " ";
+				sblog << "invalid source operand  " << chan << " ";
 				dump::dump_op(c);
-				cerr << "\n";
+				sblog << "\n";
 				abort();
 			}
 			unsigned vreg = v->gpr.sel();
 			if (reg == -1)
 				reg = vreg;
 			else if ((unsigned)reg != vreg) {
-				cerr << "invalid source operand  " << chan << " ";
+				sblog << "invalid source operand  " << chan << " ";
 				dump::dump_op(c);
-				cerr << "\n";
+				sblog << "\n";
 				abort();
 			}
 
@@ -698,18 +692,18 @@ void bc_finalizer::finalize_cf(cf_node* c) {
 					continue;
 
 				if (!v->is_any_gpr() || v->gpr.chan() != chan) {
-					cerr << "invalid source operand  " << chan << " ";
+					sblog << "invalid source operand  " << chan << " ";
 					dump::dump_op(c);
-					cerr << "\n";
+					sblog << "\n";
 					abort();
 				}
 				unsigned vreg = v->gpr.sel();
 				if (reg == -1)
 					reg = vreg;
 				else if ((unsigned)reg != vreg) {
-					cerr << "invalid source operand  " << chan << " ";
+					sblog << "invalid source operand  " << chan << " ";
 					dump::dump_op(c);
-					cerr << "\n";
+					sblog << "\n";
 					abort();
 				}
 			}
diff --git a/src/gallium/drivers/r600/sb/sb_bc_parser.cpp b/src/gallium/drivers/r600/sb/sb_bc_parser.cpp
index 9f3ecc51cd9..a78ca4b91d8 100644
--- a/src/gallium/drivers/r600/sb/sb_bc_parser.cpp
+++ b/src/gallium/drivers/r600/sb/sb_bc_parser.cpp
@@ -45,8 +45,6 @@ extern "C" {
 
 namespace r600_sb {
 
-using std::cerr;
-
 int bc_parser::decode() {
 
 	dw = bc->bytecode;
@@ -728,22 +726,22 @@ int bc_parser::prepare_if(cf_node* c) {
 	cf_node *c_else = NULL, *end = cf_map[c->bc.addr];
 
 	BCP_DUMP(
-		cerr << "parsing JUMP @" << c->bc.id;
-		cerr << "\n";
+		sblog << "parsing JUMP @" << c->bc.id;
+		sblog << "\n";
 	);
 
 	if (end->bc.op == CF_OP_ELSE) {
 		BCP_DUMP(
-			cerr << "  found ELSE : ";
+			sblog << "  found ELSE : ";
 			dump::dump_op(end);
-			cerr << "\n";
+			sblog << "\n";
 		);
 
 		c_else = end;
 		end = cf_map[c_else->bc.addr];
 	} else {
 		BCP_DUMP(
-			cerr << "  no else\n";
+			sblog << "  no else\n";
 		);
 
 		c_else = end;
diff --git a/src/gallium/drivers/r600/sb/sb_context.cpp b/src/gallium/drivers/r600/sb/sb_context.cpp
index 034631376b5..9723a841c99 100644
--- a/src/gallium/drivers/r600/sb/sb_context.cpp
+++ b/src/gallium/drivers/r600/sb/sb_context.cpp
@@ -28,6 +28,8 @@
 
 namespace r600_sb {
 
+sb_log sblog;
+
 unsigned sb_context::dump_pass = 0;
 unsigned sb_context::dump_stat = 0;
 unsigned sb_context::dry_run = 0;
diff --git a/src/gallium/drivers/r600/sb/sb_core.cpp b/src/gallium/drivers/r600/sb/sb_core.cpp
index 17a8b878e0f..f0755ddfdd4 100644
--- a/src/gallium/drivers/r600/sb/sb_core.cpp
+++ b/src/gallium/drivers/r600/sb/sb_core.cpp
@@ -36,7 +36,6 @@ extern "C" {
 
 #include <stack>
 #include <map>
-#include <iostream>
 
 #include "sb_bc.h"
 #include "sb_shader.h"
@@ -45,8 +44,6 @@ extern "C" {
 
 using namespace r600_sb;
 
-using std::cerr;
-
 static sb_hw_class translate_chip_class(enum chip_class cc);
 static sb_hw_chip translate_chip(enum radeon_family rf);
 
@@ -79,12 +76,12 @@ void r600_sb_context_destroy(void * sctx) {
 		sb_context *ctx = static_cast<sb_context*>(sctx);
 
 		if (sb_context::dump_stat) {
-			cerr << "context src stats: ";
-			ctx->src_stats.dump(cerr);
-			cerr << "context opt stats: ";
-			ctx->opt_stats.dump(cerr);
-			cerr << "context diff: ";
-			ctx->src_stats.dump_diff(cerr, ctx->opt_stats);
+			sblog << "\ncontext src stats: ";
+			ctx->src_stats.dump();
+			sblog << "context opt stats: ";
+			ctx->opt_stats.dump();
+			sblog << "context diff: ";
+			ctx->src_stats.dump_diff(ctx->opt_stats);
 		}
 
 		delete ctx;
@@ -109,7 +106,7 @@ int r600_sb_bytecode_process(struct r600_context *rctx,
 		time_start = os_time_get_nano();
 	}
 
-	SB_DUMP_STAT( cerr << "\nsb: shader " << shader_id << "\n"; );
+	SB_DUMP_STAT( sblog << "\nsb: shader " << shader_id << "\n"; );
 
 	bc_parser parser(*ctx, bc, pshader);
 
@@ -121,7 +118,7 @@ int r600_sb_bytecode_process(struct r600_context *rctx,
 	shader *sh = parser.get_shader();
 
 	if (dump_bytecode) {
-		bc_dump(*sh, cerr, bc->bytecode, bc->ndw).run();
+		bc_dump(*sh, bc->bytecode, bc->ndw).run();
 	}
 
 	if (!optimize) {
@@ -146,7 +143,7 @@ int r600_sb_bytecode_process(struct r600_context *rctx,
 		if ((sb_context::dskip_start <= shader_id &&
 				shader_id <= sb_context::dskip_end) ==
 						(sb_context::dskip_mode == 1)) {
-			cerr << "sb: skipped shader " << shader_id << " : " << "["
+			sblog << "sb: skipped shader " << shader_id << " : " << "["
 					<< sb_context::dskip_start << "; "
 					<< sb_context::dskip_end << "] mode "
 					<< sb_context::dskip_mode << "\n";
@@ -159,21 +156,21 @@ int r600_sb_bytecode_process(struct r600_context *rctx,
 		return r;
 	}
 
-	SB_DUMP_PASS( cerr << "\n\n###### after parse\n"; sh->dump_ir(); );
+	SB_DUMP_PASS( sblog << "\n\n###### after parse\n"; sh->dump_ir(); );
 
 #define SB_RUN_PASS(n, dump) \
 	do { \
 		r = n(*sh).run(); \
 		if (r) { \
-			cerr << "sb: error (" << r << ") in the " << #n << " pass.\n"; \
+			sblog << "sb: error (" << r << ") in the " << #n << " pass.\n"; \
 			if (sb_context::no_fallback) \
 				return r; \
-			cerr << "sb: using unoptimized bytecode...\n"; \
+			sblog << "sb: using unoptimized bytecode...\n"; \
 			delete sh; \
 			return 0; \
 		} \
 		if (dump) { \
-			SB_DUMP_PASS( cerr << "\n\n###### after " << #n << "\n"; \
+			SB_DUMP_PASS( sblog << "\n\n###### after " << #n << "\n"; \
 				sh->dump_ir();); \
 		} \
 		assert(!r); \
@@ -240,7 +237,7 @@ int r600_sb_bytecode_process(struct r600_context *rctx,
 	bytecode &nbc = builder.get_bytecode();
 
 	if (dump_bytecode) {
-		bc_dump(*sh, cerr, &nbc).run();
+		bc_dump(*sh, &nbc).run();
 	}
 
 	if (!sb_context::dry_run) {
@@ -253,24 +250,24 @@ int r600_sb_bytecode_process(struct r600_context *rctx,
 		bc->ngpr = sh->ngpr;
 		bc->nstack = sh->nstack;
 	} else {
-		SB_DUMP_STAT( cerr << "sb: dry run: optimized bytecode is not used\n"; );
+		SB_DUMP_STAT( sblog << "sb: dry run: optimized bytecode is not used\n"; );
 	}
 
 	if (sb_context::dump_stat) {
 		int64_t t = os_time_get_nano() - time_start;
 
-		cerr << "sb: processing shader " << shader_id << " done ( "
+		sblog << "sb: processing shader " << shader_id << " done ( "
 				<< ((double)t)/1000000.0 << " ms ).\n";
 
 		sh->opt_stats.ndw = bc->ndw;
 		sh->collect_stats(true);
 
-		cerr << "src stats: ";
-		sh->src_stats.dump(cerr);
-		cerr << "opt stats: ";
-		sh->opt_stats.dump(cerr);
-		cerr << "diff: ";
-		sh->src_stats.dump_diff(cerr, sh->opt_stats);
+		sblog << "src stats: ";
+		sh->src_stats.dump();
+		sblog << "opt stats: ";
+		sh->opt_stats.dump();
+		sblog << "diff: ";
+		sh->src_stats.dump_diff(sh->opt_stats);
 	}
 
 	delete sh;
diff --git a/src/gallium/drivers/r600/sb/sb_def_use.cpp b/src/gallium/drivers/r600/sb/sb_def_use.cpp
index f35f592c929..a512d920865 100644
--- a/src/gallium/drivers/r600/sb/sb_def_use.cpp
+++ b/src/gallium/drivers/r600/sb/sb_def_use.cpp
@@ -25,13 +25,10 @@
  */
 
 #include "sb_shader.h"
-
 #include "sb_pass.h"
 
 namespace r600_sb {
 
-using std::cerr;
-
 int def_use::run() {
 	run_on(sh.root, true);
 	run_on(sh.root, false);
@@ -57,9 +54,9 @@ void def_use::run_on(node* n, bool defs) {
 	if (is_op) {
 
 		if (0) {
-			cerr << "def_use processing op ";
+			sblog << "def_use processing op ";
 			dump::dump_op(n);
-			cerr << "\n";
+			sblog << "\n";
 		}
 
 		if (defs)
diff --git a/src/gallium/drivers/r600/sb/sb_dump.cpp b/src/gallium/drivers/r600/sb/sb_dump.cpp
index c2ee34dc0af..7e317abe7a7 100644
--- a/src/gallium/drivers/r600/sb/sb_dump.cpp
+++ b/src/gallium/drivers/r600/sb/sb_dump.cpp
@@ -24,17 +24,11 @@
  *      Vadim Girlin
  */
 
-#include <iostream>
-#include <iomanip>
-
 #include "sb_shader.h"
-
 #include "sb_pass.h"
 
 namespace r600_sb {
 
-using std::cerr;
-
 bool dump::visit(node& n, bool enter) {
 	if (enter) {
 		indent();
@@ -54,7 +48,7 @@ bool dump::visit(node& n, bool enter) {
 				assert(!"invalid node subtype");
 				break;
 		}
-		cerr << "\n";
+		sblog << "\n";
 	}
 	return false;
 }
@@ -64,11 +58,11 @@ bool dump::visit(container_node& n, bool enter) {
 		if (!n.empty()) {
 			indent();
 			dump_flags(n);
-			cerr << "{  ";
+			sblog << "{  ";
 			if (!n.dst.empty()) {
-				cerr << " preloaded inputs [";
+				sblog << " preloaded inputs [";
 				dump_vec(n.dst);
-				cerr << "]  ";
+				sblog << "]  ";
 			}
 			dump_live_values(n, true);
 		}
@@ -77,11 +71,11 @@ bool dump::visit(container_node& n, bool enter) {
 		--level;
 		if (!n.empty()) {
 			indent();
-			cerr << "}  ";
+			sblog << "}  ";
 			if (!n.src.empty()) {
-				cerr << " results [";
+				sblog << " results [";
 				dump_vec(n.src);
-				cerr << "]  ";
+				sblog << "]  ";
 			}
 			dump_live_values(n, false);
 		}
@@ -93,13 +87,13 @@ bool dump::visit(bb_node& n, bool enter) {
 	if (enter) {
 		indent();
 		dump_flags(n);
-		cerr << "{ BB_" << n.id << "    loop_level = " << n.loop_level << "  ";
+		sblog << "{ BB_" << n.id << "    loop_level = " << n.loop_level << "  ";
 		dump_live_values(n, true);
 		++level;
 	} else {
 		--level;
 		indent();
-		cerr << "} end BB_" << n.id << "  ";
+		sblog << "} end BB_" << n.id << "  ";
 		dump_live_values(n, false);
 	}
 	return true;
@@ -109,7 +103,7 @@ bool dump::visit(alu_group_node& n, bool enter) {
 	if (enter) {
 		indent();
 		dump_flags(n);
-		cerr << "[  ";
+		sblog << "[  ";
 		dump_live_values(n, true);
 
 		++level;
@@ -117,7 +111,7 @@ bool dump::visit(alu_group_node& n, bool enter) {
 		--level;
 
 		indent();
-		cerr << "]  ";
+		sblog << "]  ";
 		dump_live_values(n, false);
 	}
 	return true;
@@ -130,15 +124,15 @@ bool dump::visit(cf_node& n, bool enter) {
 		dump_op(n, n.bc.op_ptr->name);
 
 		if (n.bc.op_ptr->flags & CF_BRANCH) {
-			cerr << " @" << (n.bc.addr << 1);
+			sblog << " @" << (n.bc.addr << 1);
 		}
 
 		dump_common(n);
-		cerr << "\n";
+		sblog << "\n";
 
 		if (!n.empty()) {
 			indent();
-			cerr << "<  ";
+			sblog << "<  ";
 			dump_live_values(n, true);
 		}
 
@@ -147,7 +141,7 @@ bool dump::visit(cf_node& n, bool enter) {
 		--level;
 		if (!n.empty()) {
 			indent();
-			cerr << ">  ";
+			sblog << ">  ";
 			dump_live_values(n, false);
 		}
 	}
@@ -160,7 +154,7 @@ bool dump::visit(alu_node& n, bool enter) {
 		dump_flags(n);
 		dump_alu(&n);
 		dump_common(n);
-		cerr << "\n";
+		sblog << "\n";
 
 		++level;
 	} else {
@@ -175,7 +169,7 @@ bool dump::visit(alu_packed_node& n, bool enter) {
 		indent();
 		dump_flags(n);
 		dump_op(n, n.op_ptr()->name);
-		cerr << "  ";
+		sblog << "  ";
 		dump_live_values(n, true);
 
 		++level;
@@ -196,7 +190,7 @@ bool dump::visit(fetch_node& n, bool enter) {
 		indent();
 		dump_flags(n);
 		dump_op(n, n.bc.op_ptr->name);
-		cerr << "\n";
+		sblog << "\n";
 
 		++level;
 	} else {
@@ -209,11 +203,11 @@ bool dump::visit(region_node& n, bool enter) {
 	if (enter) {
 		indent();
 		dump_flags(n);
-		cerr << "region #" << n.region_id << "   ";
+		sblog << "region #" << n.region_id << "   ";
 		dump_common(n);
 
 		if (!n.vars_defined.empty()) {
-			cerr << "vars_defined: ";
+			sblog << "vars_defined: ";
 			dump_set(sh, n.vars_defined);
 		}
 
@@ -239,10 +233,10 @@ bool dump::visit(repeat_node& n, bool enter) {
 	if (enter) {
 		indent();
 		dump_flags(n);
-		cerr << "repeat region #" << n.target->region_id;
-		cerr << (n.empty() ? "   " : " after {  ");
+		sblog << "repeat region #" << n.target->region_id;
+		sblog << (n.empty() ? "   " : " after {  ");
 		dump_common(n);
-		cerr << "   ";
+		sblog << "   ";
 		dump_live_values(n, true);
 
 		++level;
@@ -251,7 +245,7 @@ bool dump::visit(repeat_node& n, bool enter) {
 
 		if (!n.empty()) {
 			indent();
-			cerr << "} end_repeat   ";
+			sblog << "} end_repeat   ";
 			dump_live_values(n, false);
 		}
 	}
@@ -262,10 +256,10 @@ bool dump::visit(depart_node& n, bool enter) {
 	if (enter) {
 		indent();
 		dump_flags(n);
-		cerr << "depart region #" << n.target->region_id;
-		cerr << (n.empty() ? "   " : " after {  ");
+		sblog << "depart region #" << n.target->region_id;
+		sblog << (n.empty() ? "   " : " after {  ");
 		dump_common(n);
-		cerr << "  ";
+		sblog << "  ";
 		dump_live_values(n, true);
 
 		++level;
@@ -273,7 +267,7 @@ bool dump::visit(depart_node& n, bool enter) {
 		--level;
 		if (!n.empty()) {
 			indent();
-			cerr << "} end_depart   ";
+			sblog << "} end_depart   ";
 			dump_live_values(n, false);
 		}
 	}
@@ -284,26 +278,26 @@ bool dump::visit(if_node& n, bool enter) {
 	if (enter) {
 		indent();
 		dump_flags(n);
-		cerr << "if " << *n.cond << "    ";
+		sblog << "if " << *n.cond << "    ";
 		dump_common(n);
-		cerr << "   ";
+		sblog << "   ";
 		dump_live_values(n, true);
 
 		indent();
-		cerr <<"{\n";
+		sblog <<"{\n";
 
 		++level;
 	} else {
 		--level;
 		indent();
-		cerr << "} endif   ";
+		sblog << "} endif   ";
 		dump_live_values(n, false);
 	}
 	return true;
 }
 
 void dump::indent() {
-	cerr << std::setw(level * 4) << "";
+	sblog.print_wl("", level * 4);
 }
 
 void dump::dump_vec(const vvec & vv) {
@@ -311,14 +305,14 @@ void dump::dump_vec(const vvec & vv) {
 	for(vvec::const_iterator I = vv.begin(), E = vv.end(); I != E; ++I) {
 		value *v = *I;
 		if (!first)
-			cerr << ", ";
+			sblog << ", ";
 		else
 			first = false;
 
 		if (v) {
-			cerr << *v;
+			sblog << *v;
 		} else {
-			cerr << "__";
+			sblog << "__";
 		}
 	}
 }
@@ -330,10 +324,10 @@ void dump::dump_rels(vvec & vv) {
 		if (!v || !v->is_rel())
 			continue;
 
-		cerr << "\n\t\t\t\t\t";
-		cerr << "    rels: " << *v << " : ";
+		sblog << "\n\t\t\t\t\t";
+		sblog << "    rels: " << *v << " : ";
 		dump_vec(v->mdef);
-		cerr << " <= ";
+		sblog << " <= ";
 		dump_vec(v->muse);
 	}
 }
@@ -342,10 +336,10 @@ void dump::dump_op(node &n, const char *name) {
 
 	if (n.pred) {
 		alu_node &a = static_cast<alu_node&>(n);
-		cerr << (a.bc.pred_sel-2) << " [" << *a.pred << "] ";
+		sblog << (a.bc.pred_sel-2) << " [" << *a.pred << "] ";
 	}
 
-	cerr << name;
+	sblog << name;
 
 	bool has_dst = !n.dst.empty();
 
@@ -353,34 +347,34 @@ void dump::dump_op(node &n, const char *name) {
 		cf_node *c = static_cast<cf_node*>(&n);
 		if (c->bc.op_ptr->flags & CF_EXP) {
 			static const char *exp_type[] = {"PIXEL", "POS  ", "PARAM"};
-			cerr << "  " << exp_type[c->bc.type] << " " << c->bc.array_base;
+			sblog << "  " << exp_type[c->bc.type] << " " << c->bc.array_base;
 			has_dst = false;
 		} else if (c->bc.op_ptr->flags & CF_STRM) {
 			static const char *exp_type[] = {"WRITE", "WRITE_IND", "WRITE_ACK",
 					"WRITE_IND_ACK"};
-			cerr << "  " << exp_type[c->bc.type] << " " << c->bc.array_base
+			sblog << "  " << exp_type[c->bc.type] << " " << c->bc.array_base
 					<< "   ES:" << c->bc.elem_size;
 			has_dst = false;
 		}
 	}
 
-	cerr << "     ";
+	sblog << "     ";
 
 	if (has_dst) {
 		dump_vec(n.dst);
-		cerr << ",       ";
+		sblog << ",       ";
 	}
 
 	dump_vec(n.src);
 }
 
 void dump::dump_set(shader &sh, val_set& v) {
-	cerr << "[";
+	sblog << "[";
 	for(val_set::iterator I = v.begin(sh), E = v.end(sh); I != E; ++I) {
 		value *val = *I;
-		cerr << *val << " ";
+		sblog << *val << " ";
 	}
-	cerr << "]";
+	sblog << "]";
 }
 
 void dump::dump_common(node& n) {
@@ -388,46 +382,46 @@ void dump::dump_common(node& n) {
 
 void dump::dump_flags(node &n) {
 	if (n.flags & NF_DEAD)
-		cerr << "### DEAD  ";
+		sblog << "### DEAD  ";
 	if (n.flags & NF_REG_CONSTRAINT)
-		cerr << "R_CONS  ";
+		sblog << "R_CONS  ";
 	if (n.flags & NF_CHAN_CONSTRAINT)
-		cerr << "CH_CONS  ";
+		sblog << "CH_CONS  ";
 	if (n.flags & NF_ALU_4SLOT)
-		cerr << "4S  ";
+		sblog << "4S  ";
 }
 
 void dump::dump_val(value* v) {
-	cerr << *v;
+	sblog << *v;
 }
 
 void dump::dump_alu(alu_node *n) {
 
 	if (n->is_copy_mov())
-		cerr << "(copy) ";
+		sblog << "(copy) ";
 
 	if (n->pred) {
-		cerr << (n->bc.pred_sel-2) << " [" << n->pred << "] ";
+		sblog << (n->bc.pred_sel-2) << " [" << *n->pred << "] ";
 	}
 
-	cerr << n->bc.op_ptr->name;
+	sblog << n->bc.op_ptr->name;
 
 	if (n->bc.omod) {
 		static const char *omod_str[] = {"", "*2", "*4", "/2"};
-		cerr << omod_str[n->bc.omod];
+		sblog << omod_str[n->bc.omod];
 	}
 
 	if (n->bc.clamp) {
-		cerr << "_sat";
+		sblog << "_sat";
 	}
 
 	bool has_dst = !n->dst.empty();
 
-	cerr << "     ";
+	sblog << "     ";
 
 	if (has_dst) {
 		dump_vec(n->dst);
-		cerr << ",    ";
+		sblog << ",    ";
 	}
 
 	unsigned s = 0;
@@ -437,18 +431,18 @@ void dump::dump_alu(alu_node *n) {
 		bc_alu_src &src = n->bc.src[s];
 
 		if (src.neg)
-			cerr << "-";
+			sblog << "-";
 
 		if (src.abs)
-			cerr << "|";
+			sblog << "|";
 
 		dump_val(*I);
 
 		if (src.abs)
-			cerr << "|";
+			sblog << "|";
 
 		if (I + 1 != E)
-			cerr << ", ";
+			sblog << ", ";
 	}
 
 	dump_rels(n->dst);
@@ -495,30 +489,30 @@ void dump::dump_op(node* n) {
 void dump::dump_op_list(container_node* c) {
 	for (node_iterator I = c->begin(), E = c->end(); I != E; ++I) {
 		dump_op(*I);
-		cerr << "\n";
+		sblog << "\n";
 	}
 }
 
 void dump::dump_queue(sched_queue& q) {
 	for (sched_queue::iterator I = q.begin(), E = q.end(); I != E; ++I) {
 		dump_op(*I);
-		cerr << "\n";
+		sblog << "\n";
 	}
 }
 
 void dump::dump_live_values(container_node &n, bool before) {
 	if (before) {
 		if (!n.live_before.empty()) {
-			cerr << "live_before: ";
+			sblog << "live_before: ";
 			dump_set(sh, n.live_before);
 		}
 	} else {
 		if (!n.live_after.empty()) {
-			cerr << "live_after: ";
+			sblog << "live_after: ";
 			dump_set(sh, n.live_after);
 		}
 	}
-	cerr << "\n";
+	sblog << "\n";
 }
 
 } // namespace r600_sb
diff --git a/src/gallium/drivers/r600/sb/sb_gcm.cpp b/src/gallium/drivers/r600/sb/sb_gcm.cpp
index 2bae0a35726..b09008c6f08 100644
--- a/src/gallium/drivers/r600/sb/sb_gcm.cpp
+++ b/src/gallium/drivers/r600/sb/sb_gcm.cpp
@@ -32,21 +32,17 @@
 #define GCM_DUMP(a)
 #endif
 
-#include <iostream>
 #include <map>
 
 #include "sb_bc.h"
 #include "sb_shader.h"
-
 #include "sb_pass.h"
 
 namespace r600_sb {
 
-using std::cerr;
-
 int gcm::run() {
 
-	GCM_DUMP( cerr << "==== GCM ==== \n"; sh.dump_ir(); );
+	GCM_DUMP( sblog << "==== GCM ==== \n"; sh.dump_ir(); );
 
 	collect_instructions(sh.root, true);
 
@@ -59,17 +55,17 @@ int gcm::run() {
 		node *o = *I;
 
 		GCM_DUMP(
-			cerr << "pending : ";
+			sblog << "pending : ";
 			dump::dump_op(o);
-			cerr << "\n";
+			sblog << "\n";
 		);
 
 		if (td_is_ready(o)) {
 
 			GCM_DUMP(
-				cerr << "  ready: ";
+				sblog << "  ready: ";
 				dump::dump_op(o);
-				cerr << "\n";
+				sblog << "\n";
 			);
 			pending.remove_node(o);
 			ready.push_back(o);
@@ -80,7 +76,7 @@ int gcm::run() {
 	sched_early(sh.root);
 
 	if (!pending.empty()) {
-		cerr << "##### gcm_sched_early_pass: unscheduled ops:\n";
+		sblog << "##### gcm_sched_early_pass: unscheduled ops:\n";
 		dump::dump_op(pending.front());
 	}
 
@@ -88,7 +84,7 @@ int gcm::run() {
 
 	GCM_DUMP( sh.dump_ir(); );
 
-	GCM_DUMP( cerr << "\n\n ############## gcm late\n\n"; );
+	GCM_DUMP( sblog << "\n\n ############## gcm late\n\n"; );
 
 	collect_instructions(sh.root, false);
 
@@ -96,7 +92,7 @@ int gcm::run() {
 
 	sched_late(sh.root);
 	if (!pending.empty()) {
-		cerr << "##### gcm_sched_late_pass: unscheduled ops:\n";
+		sblog << "##### gcm_sched_late_pass: unscheduled ops:\n";
 		dump::dump_op(pending.front());
 	}
 
@@ -163,9 +159,9 @@ void gcm::sched_early(container_node *n) {
 
 void gcm::td_schedule(bb_node *bb, node *n) {
 	GCM_DUMP(
-		cerr << "scheduling : ";
+		sblog << "scheduling : ";
 		dump::dump_op(n);
-		cerr << "\n";
+		sblog << "\n";
 	);
 	td_release_uses(n->dst);
 
@@ -177,7 +173,7 @@ void gcm::td_schedule(bb_node *bb, node *n) {
 
 void gcm::td_sched_bb(bb_node* bb) {
 	GCM_DUMP(
-	cerr << "td scheduling BB_" << bb->id << "\n";
+	sblog << "td scheduling BB_" << bb->id << "\n";
 	);
 
 	while (!ready.empty()) {
@@ -197,9 +193,9 @@ bool gcm::td_is_ready(node* n) {
 void gcm::td_release_val(value *v) {
 
 	GCM_DUMP(
-		cerr << "td checking uses: ";
+		sblog << "td checking uses: ";
 		dump::dump_val(v);
-		cerr << "\n";
+		sblog << "\n";
 	);
 
 	use_info *u = v->uses;
@@ -210,16 +206,16 @@ void gcm::td_release_val(value *v) {
 		}
 
 		GCM_DUMP(
-			cerr << "td    used in ";
+			sblog << "td    used in ";
 			dump::dump_op(u->op);
-			cerr << "\n";
+			sblog << "\n";
 		);
 
 		if (--uses[u->op] == 0) {
 			GCM_DUMP(
-				cerr << "td        released : ";
+				sblog << "td        released : ";
 				dump::dump_op(u->op);
-				cerr << "\n";
+				sblog << "\n";
 			);
 
 			pending.remove_node(u->op);
@@ -288,14 +284,14 @@ void gcm::sched_late(container_node *n) {
 
 void gcm::bu_sched_bb(bb_node* bb) {
 	GCM_DUMP(
-	cerr << "bu scheduling BB_" << bb->id << "\n";
+	sblog << "bu scheduling BB_" << bb->id << "\n";
 	);
 
 	bu_bb = bb;
 
 	if (!pending_nodes.empty()) {
 		GCM_DUMP(
-				cerr << "pending nodes:\n";
+				sblog << "pending nodes:\n";
 		);
 
 		// TODO consider sorting the exports by array_base,
@@ -307,7 +303,7 @@ void gcm::bu_sched_bb(bb_node* bb) {
 		}
 		pending_nodes.clear();
 		GCM_DUMP(
-			cerr << "pending nodes processed...\n";
+			sblog << "pending nodes processed...\n";
 		);
 	}
 
@@ -390,7 +386,7 @@ void gcm::bu_sched_bb(bb_node* bb) {
 						 !bu_ready[SQ_VTX].empty() ||
 						 !bu_ready_next[SQ_TEX].empty() ||
 						 !bu_ready_next[SQ_VTX].empty())) {
-					GCM_DUMP( cerr << "switching to fetch (regpressure)\n"; );
+					GCM_DUMP( sblog << "switching to fetch (regpressure)\n"; );
 					break;
 				}
 
@@ -436,7 +432,7 @@ void gcm::bu_sched_bb(bb_node* bb) {
 	bu_bb = NULL;
 
 	GCM_DUMP(
-		cerr << "bu finished scheduling BB_" << bb->id << "\n";
+		sblog << "bu finished scheduling BB_" << bb->id << "\n";
 	);
 }
 
@@ -462,7 +458,7 @@ void gcm::bu_release_defs(vvec& v, bool src) {
 
 void gcm::push_uc_stack() {
 	GCM_DUMP(
-		cerr << "pushing use count stack prev_level " << ucs_level
+		sblog << "pushing use count stack prev_level " << ucs_level
 			<< "   new level " << (ucs_level + 1) << "\n";
 	);
 	++ucs_level;
@@ -483,9 +479,9 @@ bool gcm::bu_is_ready(node* n) {
 
 void gcm::bu_schedule(container_node* c, node* n) {
 	GCM_DUMP(
-		cerr << "bu scheduling : ";
+		sblog << "bu scheduling : ";
 		dump::dump_op(n);
-		cerr << "\n";
+		sblog << "\n";
 	);
 
 	assert(op_map[n].bottom_bb == bu_bb);
@@ -497,19 +493,19 @@ void gcm::bu_schedule(container_node* c, node* n) {
 }
 
 void gcm::dump_uc_stack() {
-	cerr << "##### uc_stk start ####\n";
+	sblog << "##### uc_stk start ####\n";
 	for (unsigned l = 0; l <= ucs_level; ++l) {
 		nuc_map &m = nuc_stk[l];
 
-		cerr << "nuc_stk[" << l << "] :   @" << &m << "\n";
+		sblog << "nuc_stk[" << l << "] :   @" << &m << "\n";
 
 		for (nuc_map::iterator I = m.begin(), E = m.end(); I != E; ++I) {
-			cerr << "    uc " << I->second << " for ";
+			sblog << "    uc " << I->second << " for ";
 			dump::dump_op(I->first);
-			cerr << "\n";
+			sblog << "\n";
 		}
 	}
-	cerr << "##### uc_stk end ####\n";
+	sblog << "##### uc_stk end ####\n";
 }
 
 void gcm::pop_uc_stack() {
@@ -518,7 +514,7 @@ void gcm::pop_uc_stack() {
 	nuc_map &cm = nuc_stk[ucs_level];
 
 	GCM_DUMP(
-		cerr << "merging use stack from level " << (ucs_level+1)
+		sblog << "merging use stack from level " << (ucs_level+1)
 			<< " to " << ucs_level << "\n";
 	);
 
@@ -526,9 +522,9 @@ void gcm::pop_uc_stack() {
 		node *n = I->first;
 
 		GCM_DUMP(
-			cerr << "      " << cm[n] << " += " << I->second << "  for ";
+			sblog << "      " << cm[n] << " += " << I->second << "  for ";
 			dump::dump_op(n);
-			cerr << "\n";
+			sblog << "\n";
 		);
 
 		unsigned uc = cm[n] += I->second;
@@ -537,9 +533,9 @@ void gcm::pop_uc_stack() {
 			cm.erase(n);
 			pending_nodes.push_back(n);
 			GCM_DUMP(
-				cerr << "pushed pending_node due to stack pop ";
+				sblog << "pushed pending_node due to stack pop ";
 				dump::dump_op(n);
-				cerr << "\n";
+				sblog << "\n";
 			);
 		}
 	}
@@ -548,9 +544,9 @@ void gcm::pop_uc_stack() {
 void gcm::bu_find_best_bb(node *n, op_info &oi) {
 
 	GCM_DUMP(
-		cerr << "  find best bb : ";
+		sblog << "  find best bb : ";
 		dump::dump_op(n);
-		cerr << "\n";
+		sblog << "\n";
 	);
 
 	if (oi.bottom_bb)
@@ -611,7 +607,7 @@ void gcm::bu_release_op(node * n) {
 	op_info &oi = op_map[n];
 
 	GCM_DUMP(
-	cerr << "  bu release op  ";
+	sblog << "  bu release op  ";
 	dump::dump_op(n);
 	);
 
@@ -621,10 +617,10 @@ void gcm::bu_release_op(node * n) {
 	bu_find_best_bb(n, oi);
 
 	if (oi.bottom_bb == bu_bb) {
-		GCM_DUMP( cerr << "   ready\n";);
+		GCM_DUMP( sblog << "   ready\n";);
 		add_ready(n);
 	} else {
-		GCM_DUMP( cerr << "   ready_above\n";);
+		GCM_DUMP( sblog << "   ready_above\n";);
 		ready_above.push_back(n);
 	}
 }
@@ -661,16 +657,16 @@ void gcm::init_use_count(nuc_map& m, container_node &s) {
 		node *n = *I;
 		unsigned uc = get_uc_vec(n->dst);
 		GCM_DUMP(
-			cerr << "uc " << uc << "  ";
+			sblog << "uc " << uc << "  ";
 			dump::dump_op(n);
-			cerr << "\n";
+			sblog << "\n";
 		);
 		if (!uc) {
 			pending_nodes.push_back(n);
 			GCM_DUMP(
-				cerr << "pushed pending_node in init ";
+				sblog << "pushed pending_node in init ";
 				dump::dump_op(n);
-				cerr << "\n";
+				sblog << "\n";
 			);
 
 		} else
@@ -688,15 +684,15 @@ void gcm::bu_release_val(value* v) {
 
 		if (live.add_val(v)) {
 			++live_count;
-			GCM_DUMP ( cerr << "live_count: " << live_count << "\n"; );
+			GCM_DUMP ( sblog << "live_count: " << live_count << "\n"; );
 		}
 
 		GCM_DUMP(
-			cerr << "release val ";
+			sblog << "release val ";
 			dump::dump_val(v);
-			cerr << "  for node ";
+			sblog << "  for node ";
 			dump::dump_op(n);
-			cerr << "    new uc=" << uc << ", total " << uc2 << "\n";
+			sblog << "    new uc=" << uc << ", total " << uc2 << "\n";
 		);
 
 		if (uc == uc2)
@@ -713,9 +709,9 @@ void gcm::init_def_count(nuc_map& m, container_node& s) {
 		m[n] = dc;
 
 		GCM_DUMP(
-			cerr << "dc " << dc << "  ";
+			sblog << "dc " << dc << "  ";
 			dump::dump_op(n);
-			cerr << "\n";
+			sblog << "\n";
 		);
 	}
 }
diff --git a/src/gallium/drivers/r600/sb/sb_gvn.cpp b/src/gallium/drivers/r600/sb/sb_gvn.cpp
index fe4f884e21f..12cdb1c0240 100644
--- a/src/gallium/drivers/r600/sb/sb_gvn.cpp
+++ b/src/gallium/drivers/r600/sb/sb_gvn.cpp
@@ -33,15 +33,11 @@
 #endif
 
 #include "sb_shader.h"
-
 #include "sb_pass.h"
-
 #include "sb_sched.h"
 
 namespace r600_sb {
 
-using std::cerr;
-
 bool gvn::visit(node& n, bool enter) {
 	if (enter) {
 
diff --git a/src/gallium/drivers/r600/sb/sb_if_conversion.cpp b/src/gallium/drivers/r600/sb/sb_if_conversion.cpp
index 489b049490c..6411d06bdf6 100644
--- a/src/gallium/drivers/r600/sb/sb_if_conversion.cpp
+++ b/src/gallium/drivers/r600/sb/sb_if_conversion.cpp
@@ -33,13 +33,10 @@
 #endif
 
 #include "sb_shader.h"
-
 #include "sb_pass.h"
 
 namespace r600_sb {
 
-using std::cerr;
-
 int if_conversion::run() {
 
 	regions_vec &rv = sh.get_regions();
@@ -116,9 +113,9 @@ unsigned if_conversion::try_convert_kills(region_node* r) {
 		alu_node *n = static_cast<alu_node*>(*I);
 
 		IFC_DUMP(
-			cerr << "converting ";
+			sblog << "converting ";
 			dump::dump_op(n);
-			cerr << "   " << n << "\n";
+			sblog << "   " << n << "\n";
 		);
 
 		n->remove();
@@ -148,7 +145,7 @@ bool if_conversion::run_on(region_node* r) {
 	r->collect_stats(s);
 
 	IFC_DUMP(
-		cerr << "ifcvt: region " << r->region_id << " :\n";
+		sblog << "ifcvt: region " << r->region_id << " :\n";
 		s.dump();
 	);
 
@@ -198,7 +195,7 @@ bool if_conversion::run_on(region_node* r) {
 			return false;
 	}
 
-	IFC_DUMP( cerr << "if_cvt: processing...\n"; );
+	IFC_DUMP( sblog << "if_cvt: processing...\n"; );
 
 	depart_node *nd1 = static_cast<depart_node*>(r->first);
 	if (!nd1->is_depart())
diff --git a/src/gallium/drivers/r600/sb/sb_ir.cpp b/src/gallium/drivers/r600/sb/sb_ir.cpp
index cbb32378f91..382fceed08c 100644
--- a/src/gallium/drivers/r600/sb/sb_ir.cpp
+++ b/src/gallium/drivers/r600/sb/sb_ir.cpp
@@ -30,8 +30,6 @@
 
 namespace r600_sb {
 
-using std::cerr;
-
 bool node::accept(vpass& p, bool enter) { return p.visit(*this, enter); }
 bool container_node::accept(vpass& p, bool enter) { return p.visit(*this, enter); }
 bool alu_group_node::accept(vpass& p, bool enter) { return p.visit(*this, enter); }
@@ -512,18 +510,18 @@ void region_node::expand_repeat(repeat_node *r) {
 }
 
 void node_stats::dump() {
-	cerr << "  alu_count : " << alu_count << "\n";
-	cerr << "  alu_kill_count : " << alu_kill_count << "\n";
-	cerr << "  alu_copy_mov_count : " << alu_copy_mov_count << "\n";
-	cerr << "  cf_count : " << cf_count << "\n";
-	cerr << "  fetch_count : " << fetch_count << "\n";
-	cerr << "  region_count : " << region_count << "\n";
-	cerr << "  loop_count : " << loop_count << "\n";
-	cerr << "  phi_count : " << phi_count << "\n";
-	cerr << "  loop_phi_count : " << loop_phi_count << "\n";
-	cerr << "  depart_count : " << depart_count << "\n";
-	cerr << "  repeat_count : " << repeat_count << "\n";
-	cerr << "  if_count : " << if_count << "\n";
+	sblog << "  alu_count : " << alu_count << "\n";
+	sblog << "  alu_kill_count : " << alu_kill_count << "\n";
+	sblog << "  alu_copy_mov_count : " << alu_copy_mov_count << "\n";
+	sblog << "  cf_count : " << cf_count << "\n";
+	sblog << "  fetch_count : " << fetch_count << "\n";
+	sblog << "  region_count : " << region_count << "\n";
+	sblog << "  loop_count : " << loop_count << "\n";
+	sblog << "  phi_count : " << phi_count << "\n";
+	sblog << "  loop_phi_count : " << loop_phi_count << "\n";
+	sblog << "  depart_count : " << depart_count << "\n";
+	sblog << "  repeat_count : " << repeat_count << "\n";
+	sblog << "  if_count : " << if_count << "\n";
 }
 
 unsigned alu_node::interp_param() {
diff --git a/src/gallium/drivers/r600/sb/sb_ir.h b/src/gallium/drivers/r600/sb/sb_ir.h
index 47f0a5da99c..d55f4de67b8 100644
--- a/src/gallium/drivers/r600/sb/sb_ir.h
+++ b/src/gallium/drivers/r600/sb/sb_ir.h
@@ -29,7 +29,6 @@
 
 #include <algorithm>
 #include <stdint.h>
-#include <iostream>
 #include <vector>
 #include <set>
 #include <algorithm>
@@ -64,7 +63,7 @@ struct sel_chan
 	static unsigned chan(unsigned idx) { return (idx-1) & 3; }
 };
 
-inline std::ostream& operator <<(std::ostream& o, sel_chan r) {
+inline sb_ostream& operator <<(sb_ostream& o, sel_chan r) {
 	static const char * ch = "xyzw";
 	o << r.sel() << "." << ch[r.chan()];
 	return o;
@@ -428,7 +427,7 @@ inline value_flags& operator &=(value_flags &l, value_flags r) {
 
 struct value;
 
-std::ostream& operator << (std::ostream &o, value &v);
+sb_ostream& operator << (sb_ostream &o, value &v);
 
 typedef uint32_t value_hash;
 
diff --git a/src/gallium/drivers/r600/sb/sb_liveness.cpp b/src/gallium/drivers/r600/sb/sb_liveness.cpp
index 50988d4f0bb..8ecc9a59872 100644
--- a/src/gallium/drivers/r600/sb/sb_liveness.cpp
+++ b/src/gallium/drivers/r600/sb/sb_liveness.cpp
@@ -25,7 +25,6 @@
  */
 
 #include "sb_shader.h"
-
 #include "sb_pass.h"
 
 #define LIV_DEBUG 0
@@ -38,8 +37,6 @@
 
 namespace r600_sb {
 
-using std::cerr;
-
 bool liveness::visit(container_node& n, bool enter) {
 	if (enter) {
 		n.live_after = live;
@@ -191,9 +188,9 @@ void liveness::update_interferences() {
 		return;
 
 	LIV_DUMP(
-		cerr << "interf ";
+		sblog << "interf ";
 		dump::dump_set(sh, live);
-		cerr << "\n";
+		sblog << "\n";
 	);
 
 	val_set& s = live;
@@ -209,11 +206,11 @@ void liveness::update_interferences() {
 		v->interferences.remove_val(v);
 
 		LIV_DUMP(
-			cerr << "interferences updated for ";
+			sblog << "interferences updated for ";
 			dump::dump_val(v);
-			cerr << " : ";
+			sblog << " : ";
 			dump::dump_set(sh, v->interferences);
-			cerr << "\n";
+			sblog << "\n";
 		);
 	}
 	live_changed = false;
@@ -320,12 +317,12 @@ void liveness::process_ins(node& n) {
 void liveness::process_op(node& n) {
 
 	LIV_DUMP(
-		cerr << "process_op: ";
+		sblog << "process_op: ";
 		dump::dump_op(&n);
-		cerr << "\n";
-		cerr << "process_op: live_after:";
+		sblog << "\n";
+		sblog << "process_op: live_after:";
 		dump::dump_set(sh, live);
-		cerr << "\n";
+		sblog << "\n";
 	);
 
 	if(!n.dst.empty() || n.is_cf_op(CF_OP_CALL_FS)) {
@@ -339,9 +336,9 @@ void liveness::process_op(node& n) {
 	process_ins(n);
 
 	LIV_DUMP(
-		cerr << "process_op: live_before:";
+		sblog << "process_op: live_before:";
 		dump::dump_set(sh, live);
-		cerr << "\n";
+		sblog << "\n";
 	);
 }
 
diff --git a/src/gallium/drivers/r600/sb/sb_pass.h b/src/gallium/drivers/r600/sb/sb_pass.h
index a8a657fbb6f..d5d48c3c740 100644
--- a/src/gallium/drivers/r600/sb/sb_pass.h
+++ b/src/gallium/drivers/r600/sb/sb_pass.h
@@ -87,8 +87,6 @@ class bytecode;
 class bc_dump : public vpass {
 	using vpass::visit;
 
-	std::ostream &o;
-
 	uint32_t *bc_data;
 	unsigned ndw;
 
@@ -98,10 +96,10 @@ class bc_dump : public vpass {
 
 public:
 
-	bc_dump(shader &s, std::ostream &o, bytecode *bc = NULL);
+	bc_dump(shader &s, bytecode *bc = NULL);
 
-	bc_dump(shader &s, std::ostream &o, uint32_t *bc_ptr, unsigned ndw) :
-		vpass(s), o(o), bc_data(bc_ptr), ndw(ndw), id(), new_group(), group_index() {}
+	bc_dump(shader &s, uint32_t *bc_ptr, unsigned ndw) :
+		vpass(s), bc_data(bc_ptr), ndw(ndw), id(), new_group(), group_index() {}
 
 	virtual int init();
 	virtual int done();
diff --git a/src/gallium/drivers/r600/sb/sb_peephole.cpp b/src/gallium/drivers/r600/sb/sb_peephole.cpp
index 444765e8779..db51ad52370 100644
--- a/src/gallium/drivers/r600/sb/sb_peephole.cpp
+++ b/src/gallium/drivers/r600/sb/sb_peephole.cpp
@@ -33,13 +33,10 @@
 #endif
 
 #include "sb_shader.h"
-
 #include "sb_pass.h"
 
 namespace r600_sb {
 
-using std::cerr;
-
 int peephole::run() {
 
 	run_on(sh.root);
@@ -112,9 +109,9 @@ void peephole::optimize_SETcc_op(alu_node* a) {
 		bool_op_info bop = {};
 
 		PPH_DUMP(
-			cerr << "optSETcc ";
+			sblog << "optSETcc ";
 			dump::dump_op(a);
-			cerr << "\n";
+			sblog << "\n";
 		);
 
 		if (!get_bool_op_info(s, bop))
@@ -136,10 +133,10 @@ void peephole::optimize_SETcc_op(alu_node* a) {
 		}
 
 		PPH_DUMP(
-			cerr << "boi node: ";
+			sblog << "boi node: ";
 			dump::dump_op(bop.n);
-			cerr << " invert: " << bop.invert << "  int_cvt: " << bop.int_cvt;
-			cerr <<"\n";
+			sblog << " invert: " << bop.invert << "  int_cvt: " << bop.int_cvt;
+			sblog <<"\n";
 		);
 
 		unsigned newop = is_pred ? get_predsetcc_opcode(cc, cmp_type) :
diff --git a/src/gallium/drivers/r600/sb/sb_ra_checker.cpp b/src/gallium/drivers/r600/sb/sb_ra_checker.cpp
index 83510b02158..9681e69f6cd 100644
--- a/src/gallium/drivers/r600/sb/sb_ra_checker.cpp
+++ b/src/gallium/drivers/r600/sb/sb_ra_checker.cpp
@@ -24,15 +24,11 @@
  *      Vadim Girlin
  */
 
-#include <sstream>
-
 #include "sb_shader.h"
 #include "sb_pass.h"
 
 namespace r600_sb {
 
-using std::cerr;
-
 int ra_checker::run() {
 
 	rm_stack.clear();
@@ -54,11 +50,11 @@ int ra_checker::run() {
 
 void ra_checker::dump_error(const error_info &e) {
 
-	cerr << "error at : ";
+	sblog << "error at : ";
 	dump::dump_op(e.n);
 
-	cerr << "\n";
-	cerr << "  : " << e.message << "\n";
+	sblog << "\n";
+	sblog << "  : " << e.message << "\n";
 }
 
 void ra_checker::dump_all_errors() {
@@ -96,20 +92,20 @@ void ra_checker::kill_alu_only_regs() {
 void ra_checker::check_value_gpr(node *n, unsigned id, value *v) {
 	sel_chan gpr = v->gpr;
 	if (!gpr) {
-		std::ostringstream o;
+		sb_ostringstream o;
 		o << "operand value " << *v << " is not allocated";
 		error(n, id, o.str());
 		return;
 	}
 	reg_value_map::iterator F = rmap().find(v->gpr);
 	if (F == rmap().end()) {
-		std::ostringstream o;
+		sb_ostringstream o;
 		o << "operand value " << *v << " was not previously written to its gpr";
 		error(n, id, o.str());
 		return;
 	}
 	if (!F->second->v_equal(v)) {
-		std::ostringstream o;
+		sb_ostringstream o;
 		o << "expected operand value " << *v
 				<< ", gpr contains " << *(F->second);
 		error(n, id, o.str());
@@ -128,7 +124,7 @@ void ra_checker::check_src_vec(node *n, unsigned id, vvec &vv, bool src) {
 
 		if (v->is_rel()) {
 			if (!v->rel) {
-				std::ostringstream o;
+				sb_ostringstream o;
 				o << "expected relative offset in " << *v;
 				error(n, id, o.str());
 				return;
@@ -159,7 +155,7 @@ void ra_checker::process_op_dst(node *n) {
 		if (v->is_sgpr()) {
 
 			if (!v->gpr) {
-				std::ostringstream o;
+				sb_ostringstream o;
 				o << "destination operand " << *v << " is not allocated";
 				error(n, id, o.str());
 				return;
@@ -201,7 +197,7 @@ void ra_checker::check_alu_group(alu_group_node *g) {
 	for (node_iterator I = g->begin(), E = g->end(); I != E; ++I) {
 		node *a = *I;
 		if (!a->is_alu_inst()) {
-			std::ostringstream o;
+			sb_ostringstream o;
 			o << "non-alu node inside alu group";
 			error(a, 0, o.str());
 			return;
diff --git a/src/gallium/drivers/r600/sb/sb_ra_coalesce.cpp b/src/gallium/drivers/r600/sb/sb_ra_coalesce.cpp
index 25c46f79c8e..582f553db0e 100644
--- a/src/gallium/drivers/r600/sb/sb_ra_coalesce.cpp
+++ b/src/gallium/drivers/r600/sb/sb_ra_coalesce.cpp
@@ -37,8 +37,6 @@
 
 namespace r600_sb {
 
-using std::cerr;
-
 int ra_coalesce::run() {
 	return sh.coal.run();
 }
@@ -65,7 +63,7 @@ void coalescer::create_chunk(value *v) {
 	c->pin = v->pin_gpr;
 
 	RA_DUMP(
-		cerr << "create_chunk: ";
+		sblog << "create_chunk: ";
 		dump_chunk(c);
 	);
 
@@ -78,7 +76,7 @@ void coalescer::unify_chunks(ra_edge *e) {
 	ra_chunk *c1 = e->a->chunk, *c2 = e->b->chunk;
 
 	RA_DUMP(
-		cerr << "unify_chunks: ";
+		sblog << "unify_chunks: ";
 		dump_chunk(c1);
 		dump_chunk(c2);
 	);
@@ -166,21 +164,21 @@ ra_constraint* coalescer::create_constraint(constraint_kind kind) {
 }
 
 void coalescer::dump_edges() {
-	cerr << "######## affinity edges\n";
+	sblog << "######## affinity edges\n";
 
 	for (edge_queue::iterator I = edges.begin(), E = edges.end();
 			I != E; ++I) {
 		ra_edge* e = *I;
-		cerr << "  ra_edge ";
+		sblog << "  ra_edge ";
 		dump::dump_val(e->a);
-		cerr << " <-> ";
+		sblog << " <-> ";
 		dump::dump_val(e->b);
-		cerr << "   cost = " << e->cost << "\n";
+		sblog << "   cost = " << e->cost << "\n";
 	}
 }
 
 void coalescer::dump_chunks() {
-	cerr << "######## chunks\n";
+	sblog << "######## chunks\n";
 
 	for (chunk_vec::iterator I = all_chunks.begin(), E = all_chunks.end();
 			I != E; ++I) {
@@ -191,7 +189,7 @@ void coalescer::dump_chunks() {
 
 
 void coalescer::dump_constraint_queue() {
-	cerr << "######## constraints\n";
+	sblog << "######## constraints\n";
 
 	for (constraint_queue::iterator I = constraints.begin(),
 			E = constraints.end(); I != E; ++I) {
@@ -201,33 +199,33 @@ void coalescer::dump_constraint_queue() {
 }
 
 void coalescer::dump_chunk(ra_chunk* c) {
-	cerr << "  ra_chunk cost = " << c->cost << "  :  ";
+	sblog << "  ra_chunk cost = " << c->cost << "  :  ";
 	dump::dump_vec(c->values);
 
 	if (c->flags & RCF_PIN_REG)
-		cerr << "   REG = " << c->pin.sel();
+		sblog << "   REG = " << c->pin.sel();
 
 	if (c->flags & RCF_PIN_CHAN)
-		cerr << "   CHAN = " << c->pin.chan();
+		sblog << "   CHAN = " << c->pin.chan();
 
-	cerr << (c->flags & RCF_GLOBAL ? "  GLOBAL" : "");
+	sblog << (c->flags & RCF_GLOBAL ? "  GLOBAL" : "");
 
-	cerr << "\n";
+	sblog << "\n";
 }
 
 void coalescer::dump_constraint(ra_constraint* c) {
-	cerr << "  ra_constraint: ";
+	sblog << "  ra_constraint: ";
 	switch (c->kind) {
-		case CK_PACKED_BS: cerr << "PACKED_BS"; break;
-		case CK_PHI: cerr << "PHI"; break;
-		case CK_SAME_REG: cerr << "SAME_REG"; break;
-		default: cerr << "UNKNOWN_KIND"; assert(0); break;
+		case CK_PACKED_BS: sblog << "PACKED_BS"; break;
+		case CK_PHI: sblog << "PHI"; break;
+		case CK_SAME_REG: sblog << "SAME_REG"; break;
+		default: sblog << "UNKNOWN_KIND"; assert(0); break;
 	}
 
-	cerr << "  cost = " << c->cost << "  : ";
+	sblog << "  cost = " << c->cost << "  : ";
 	dump::dump_vec(c->values);
 
-	cerr << "\n";
+	sblog << "\n";
 }
 
 void coalescer::get_chunk_interferences(ra_chunk *c, val_set &s) {
@@ -289,11 +287,11 @@ void coalescer::color_chunks() {
 		get_chunk_interferences(c, interf);
 
 		RA_DUMP(
-			cerr << "color_chunks: ";
+			sblog << "color_chunks: ";
 			dump_chunk(c);
-			cerr << "\n interferences: ";
+			sblog << "\n interferences: ";
 			dump::dump_set(sh,interf);
-			cerr << "\n";
+			sblog << "\n";
 		);
 
 		init_reg_bitset(rb, interf);
@@ -385,9 +383,9 @@ void coalescer::color_chunk(ra_chunk *c, sel_chan color) {
 
 
 		RA_DUMP(
-			cerr << " assigned " << color << " to ";
+			sblog << " assigned " << color << " to ";
 			dump::dump_val(v);
-			cerr << "\n";
+			sblog << "\n";
 		);
 	}
 
@@ -455,7 +453,7 @@ ra_chunk* coalescer::detach_value(value *v) {
 	}
 
 	RA_DUMP(
-		cerr << "           detached : ";
+		sblog << "           detached : ";
 		dump_chunk(v->chunk);
 	);
 
@@ -565,7 +563,7 @@ int coalescer::color_reg_constraint(ra_constraint *c) {
 		} while (std::next_permutation(swz, swz + 4));
 
 		if (!done && pass) {
-			cerr << "sb: ra_coalesce - out of registers\n";
+			sblog << "sb: ra_coalesce - out of registers\n";
 			return -1;
 		}
 
@@ -578,7 +576,7 @@ int coalescer::color_reg_constraint(ra_constraint *c) {
 	assert(done);
 
 	RA_DUMP(
-	cerr << "min reg = " << min_reg << "   min_swz = "
+	sblog << "min reg = " << min_reg << "   min_swz = "
 			<< min_swz[0] << min_swz[1] << min_swz[2] << min_swz[3] << "\n";
 	);
 
@@ -609,7 +607,7 @@ int coalescer::color_constraints() {
 		ra_constraint *c = *I;
 
 		RA_DUMP(
-			cerr << "color_constraints: ";
+			sblog << "color_constraints: ";
 			dump_constraint(c);
 		);
 
diff --git a/src/gallium/drivers/r600/sb/sb_ra_init.cpp b/src/gallium/drivers/r600/sb/sb_ra_init.cpp
index 03b8efde4c1..d5fe4f95e5a 100644
--- a/src/gallium/drivers/r600/sb/sb_ra_init.cpp
+++ b/src/gallium/drivers/r600/sb/sb_ra_init.cpp
@@ -33,18 +33,13 @@
 #endif
 
 #include <cstring>
-#include <iostream>
-#include <iomanip>
 
 #include "sb_bc.h"
 #include "sb_shader.h"
-
 #include "sb_pass.h"
 
 namespace r600_sb {
 
-using std::cerr;
-
 class regbits {
 	typedef uint32_t basetype;
 	static const unsigned bt_bytes = sizeof(basetype);
@@ -88,12 +83,14 @@ void regbits::dump() {
 	for (unsigned i = 0; i < size * bt_bits; ++i) {
 
 		if (!(i & 31))
-			cerr << "\n";
+			sblog << "\n";
 
-		if (!(i & 3))
-			cerr << "    " << std::setw(3) << (i / 4) << " ";
+		if (!(i & 3)) {
+			sblog.print_wl(i / 4, 7);
+			sblog << " ";
+		}
 
-		cerr << (get(i) ? 1 : 0);
+		sblog << (get(i) ? 1 : 0);
 	}
 }
 
@@ -237,20 +234,20 @@ void ra_init::alloc_arrays() {
 		gpr_array *a = *I;
 
 		RA_DUMP(
-			cerr << "array [" << a->array_size << "] at " << a->base_gpr << "\n";
-			cerr << "\n";
+			sblog << "array [" << a->array_size << "] at " << a->base_gpr << "\n";
+			sblog << "\n";
 		);
 
 		// skip preallocated arrays (e.g. with preloaded inputs)
 		if (a->gpr) {
-			RA_DUMP( cerr << "   FIXED at " << a->gpr << "\n"; );
+			RA_DUMP( sblog << "   FIXED at " << a->gpr << "\n"; );
 			continue;
 		}
 
 		bool dead = a->is_dead();
 
 		if (dead) {
-			RA_DUMP( cerr << "   DEAD\n"; );
+			RA_DUMP( sblog << "   DEAD\n"; );
 			continue;
 		}
 
@@ -264,9 +261,9 @@ void ra_init::alloc_arrays() {
 		}
 
 		RA_DUMP(
-			cerr << "  interf: ";
+			sblog << "  interf: ";
 			dump::dump_set(sh, s);
-			cerr << "\n";
+			sblog << "\n";
 		);
 
 		regbits rb(sh, s);
@@ -274,7 +271,7 @@ void ra_init::alloc_arrays() {
 		sel_chan base = rb.find_free_array(a->array_size,
 		                                   (1 << a->base_gpr.chan()));
 
-		RA_DUMP( cerr << "  found base: " << base << "\n"; );
+		RA_DUMP( sblog << "  found base: " << base << "\n"; );
 
 		a->gpr = base;
 	}
@@ -307,9 +304,9 @@ void ra_init::process_op(node* n) {
 	bool copy = n->is_copy_mov();
 
 	RA_DUMP(
-		cerr << "ra_init: process_op : ";
+		sblog << "ra_init: process_op : ";
 		dump::dump_op(n);
-		cerr << "\n";
+		sblog << "\n";
 	);
 
 	if (n->is_alu_packed()) {
@@ -355,9 +352,9 @@ void ra_init::color_bs_constraint(ra_constraint* c) {
 	assert(vv.size() <= 8);
 
 	RA_DUMP(
-		cerr << "color_bs_constraint: ";
+		sblog << "color_bs_constraint: ";
 		dump::dump_vec(vv);
-		cerr << "\n";
+		sblog << "\n";
 	);
 
 	regbits rb(ctx.alu_temp_gprs);
@@ -380,9 +377,9 @@ void ra_init::color_bs_constraint(ra_constraint* c) {
 			interf = v->interferences;
 
 		RA_DUMP(
-			cerr << "   processing " << *v << "  interferences : ";
+			sblog << "   processing " << *v << "  interferences : ";
 			dump::dump_set(sh, interf);
-			cerr << "\n";
+			sblog << "\n";
 		);
 
 		if (gpr) {
@@ -406,9 +403,9 @@ void ra_init::color_bs_constraint(ra_constraint* c) {
 		rb.from_val_set(sh, interf);
 
 		RA_DUMP(
-			cerr << "   regbits : ";
+			sblog << "   regbits : ";
 			rb.dump();
-			cerr << "\n";
+			sblog << "\n";
 		);
 
 		while (allowed_chans && gpr.sel() < sh.num_nontemp_gpr()) {
@@ -417,7 +414,7 @@ void ra_init::color_bs_constraint(ra_constraint* c) {
 				gpr = gpr + 1;
 
 			RA_DUMP(
-				cerr << "    trying " << gpr << "\n";
+				sblog << "    trying " << gpr << "\n";
 			);
 
 			unsigned chan = gpr.chan();
@@ -441,7 +438,7 @@ void ra_init::color_bs_constraint(ra_constraint* c) {
 		}
 
 		if (!gpr) {
-			cerr << "color_bs_constraint: failed...\n";
+			sblog << "color_bs_constraint: failed...\n";
 			assert(!"coloring failed");
 		}
 	}
@@ -458,11 +455,11 @@ void ra_init::color(value* v) {
 		return;
 
 	RA_DUMP(
-		cerr << "coloring ";
+		sblog << "coloring ";
 		dump::dump_val(v);
-		cerr << "   interferences ";
+		sblog << "   interferences ";
 		dump::dump_set(sh, v->interferences);
-		cerr << "\n";
+		sblog << "\n";
 	);
 
 	if (v->is_reg_pinned()) {
@@ -475,7 +472,7 @@ void ra_init::color(value* v) {
 	sel_chan c;
 
 	if (v->is_chan_pinned()) {
-		RA_DUMP( cerr << "chan_pinned = " << v->pin_gpr.chan() << "  ";	);
+		RA_DUMP( sblog << "chan_pinned = " << v->pin_gpr.chan() << "  ";	);
 		unsigned mask = 1 << v->pin_gpr.chan();
 		c = rb.find_free_chans(mask) + v->pin_gpr.chan();
 	} else {
@@ -489,9 +486,9 @@ void ra_init::color(value* v) {
 void ra_init::assign_color(value* v, sel_chan c) {
 	v->gpr = c;
 	RA_DUMP(
-		cerr << "colored ";
+		sblog << "colored ";
 		dump::dump_val(v);
-		cerr << " to " << c << "\n";
+		sblog << " to " << c << "\n";
 	);
 }
 
diff --git a/src/gallium/drivers/r600/sb/sb_sched.cpp b/src/gallium/drivers/r600/sb/sb_sched.cpp
index d0045ce75ef..f99d64279f4 100644
--- a/src/gallium/drivers/r600/sb/sb_sched.cpp
+++ b/src/gallium/drivers/r600/sb/sb_sched.cpp
@@ -34,14 +34,11 @@
 
 #include "sb_bc.h"
 #include "sb_shader.h"
-
 #include "sb_pass.h"
 #include "sb_sched.h"
 
 namespace r600_sb {
 
-using std::cerr;
-
 rp_kcache_tracker::rp_kcache_tracker(shader &sh) : rp(), uc(),
 		// FIXME: for now we'll use "two const pairs" limit for r600, same as
 		// for other chips, otherwise additional check in alu_group_tracker is
@@ -156,27 +153,27 @@ void literal_tracker::unreserve(alu_node* n) {
 
 bool literal_tracker::try_reserve(literal l) {
 
-	PSC_DUMP( cerr << "literal reserve " << l.u << "  " << l.f << "\n"; );
+	PSC_DUMP( sblog << "literal reserve " << l.u << "  " << l.f << "\n"; );
 
 	for (unsigned i = 0; i < MAX_ALU_LITERALS; ++i) {
 		if (lt[i] == 0) {
 			lt[i] = l;
 			++uc[i];
-			PSC_DUMP( cerr << "  reserved new uc = " << uc[i] << "\n"; );
+			PSC_DUMP( sblog << "  reserved new uc = " << uc[i] << "\n"; );
 			return true;
 		} else if (lt[i] == l) {
 			++uc[i];
-			PSC_DUMP( cerr << "  reserved uc = " << uc[i] << "\n"; );
+			PSC_DUMP( sblog << "  reserved uc = " << uc[i] << "\n"; );
 			return true;
 		}
 	}
-	PSC_DUMP( cerr << "  failed to reserve literal\n"; );
+	PSC_DUMP( sblog << "  failed to reserve literal\n"; );
 	return false;
 }
 
 void literal_tracker::unreserve(literal l) {
 
-	PSC_DUMP( cerr << "literal unreserve " << l.u << "  " << l.f << "\n"; );
+	PSC_DUMP( sblog << "literal unreserve " << l.u << "  " << l.f << "\n"; );
 
 	for (unsigned i = 0; i < MAX_ALU_LITERALS; ++i) {
 		if (lt[i] == l) {
@@ -343,7 +340,7 @@ void alu_group_tracker::assign_slot(unsigned slot, alu_node* n) {
 
 
 void alu_group_tracker::discard_all_slots(container_node &removed_nodes) {
-	PSC_DUMP( cerr << "agt::discard_all_slots\n"; );
+	PSC_DUMP( sblog << "agt::discard_all_slots\n"; );
 	discard_slots(~available_slots & ((1 << max_slots) - 1), removed_nodes);
 }
 
@@ -351,7 +348,7 @@ void alu_group_tracker::discard_slots(unsigned slot_mask,
                                     container_node &removed_nodes) {
 
 	PSC_DUMP(
-		cerr << "discard_slots : packed_ops : " << packed_ops.size() << "\n";
+		sblog << "discard_slots : packed_ops : " << packed_ops.size() << "\n";
 	);
 
 	for (node_vec::iterator N, I = packed_ops.begin();
@@ -362,13 +359,13 @@ void alu_group_tracker::discard_slots(unsigned slot_mask,
 		unsigned pslots = n->get_slot_mask();
 
 		PSC_DUMP(
-			cerr << "discard_slots : packed slot_mask : " << pslots << "\n";
+			sblog << "discard_slots : packed slot_mask : " << pslots << "\n";
 		);
 
 		if (pslots & slot_mask) {
 
 			PSC_DUMP(
-				cerr << "discard_slots : discarding packed...\n";
+				sblog << "discard_slots : discarding packed...\n";
 			);
 
 			removed_nodes.push_back(n);
@@ -392,9 +389,9 @@ void alu_group_tracker::discard_slots(unsigned slot_mask,
 			assert(!(slots[slot]->bc.slot_flags & AF_4SLOT));
 
 			PSC_DUMP(
-				cerr << "discarding slot " << slot << " : ";
+				sblog << "discarding slot " << slot << " : ";
 				dump::dump_op(slots[slot]);
-				cerr << "\n";
+				sblog << "\n";
 			);
 
 			removed_nodes.push_back(slots[slot]);
@@ -408,9 +405,9 @@ void alu_group_tracker::discard_slots(unsigned slot_mask,
 		unsigned chan = t->bc.dst_chan;
 		if (!slots[chan]) {
 			PSC_DUMP(
-				cerr << "moving ";
+				sblog << "moving ";
 				dump::dump_op(t);
-				cerr << " from trans slot to free slot " << chan << "\n";
+				sblog << " from trans slot to free slot " << chan << "\n";
 			);
 
 			slots[chan] = t;
@@ -557,13 +554,13 @@ bool alu_group_tracker::try_reserve(alu_node* n) {
 	while (1) {
 
 		PSC_DUMP(
-			cerr << " bs: trying s" << i << " bs:" << a->bc.bank_swizzle
+			sblog << " bs: trying s" << i << " bs:" << a->bc.bank_swizzle
 				<< " bt:" << backtrack << "\n";
 		);
 
 		if (!backtrack && gpr.try_reserve(a)) {
 			PSC_DUMP(
-				cerr << " bs: reserved s" << i << " bs:" << a->bc.bank_swizzle
+				sblog << " bs: reserved s" << i << " bs:" << a->bc.bank_swizzle
 					<< "\n";
 			);
 
@@ -580,7 +577,7 @@ bool alu_group_tracker::try_reserve(alu_node* n) {
 				++a->bc.bank_swizzle;
 
 				PSC_DUMP(
-					cerr << " bs: inc s" << i << " bs:" << a->bc.bank_swizzle
+					sblog << " bs: inc s" << i << " bs:" << a->bc.bank_swizzle
 						<< "\n";
 				);
 
@@ -592,7 +589,7 @@ bool alu_group_tracker::try_reserve(alu_node* n) {
 					break;
 				a = slots[i];
 				PSC_DUMP(
-					cerr << " bs: unreserve s" << i << " bs:" << a->bc.bank_swizzle
+					sblog << " bs: unreserve s" << i << " bs:" << a->bc.bank_swizzle
 						<< "\n";
 				);
 				gpr.unreserve(a);
@@ -661,13 +658,13 @@ void alu_group_tracker::reinit() {
 
 	for (int i = max_slots - 1; i >= 0; --i) {
 		if (s[i] && !try_reserve(s[i])) {
-			cerr << "alu_group_tracker: reinit error on slot " << i <<  "\n";
+			sblog << "alu_group_tracker: reinit error on slot " << i <<  "\n";
 			for (unsigned i = 0; i < max_slots; ++i) {
-				cerr << "  slot " << i << " : ";
+				sblog << "  slot " << i << " : ";
 				if (s[i])
 					dump::dump_op(s[i]);
 
-				cerr << "\n";
+				sblog << "\n";
 			}
 			assert(!"alu_group_tracker: reinit error");
 		}
@@ -761,7 +758,7 @@ unsigned post_scheduler::init_ucm(container_node *c, node *n) {
 
 void post_scheduler::schedule_bb(bb_node* bb) {
 	PSC_DUMP(
-		cerr << "scheduling BB " << bb->id << "\n";
+		sblog << "scheduling BB " << bb->id << "\n";
 		if (!pending.empty())
 			dump::dump_op_list(&pending);
 	);
@@ -778,9 +775,9 @@ void post_scheduler::schedule_bb(bb_node* bb) {
 	while ((n = bb_pending.back())) {
 
 		PSC_DUMP(
-			cerr << "post_sched_bb ";
+			sblog << "post_sched_bb ";
 			dump::dump_op(n);
-			cerr << "\n";
+			sblog << "\n";
 		);
 
 		if (n->subtype == NST_ALU_CLAUSE) {
@@ -801,9 +798,9 @@ void post_scheduler::init_regmap() {
 	regmap.clear();
 
 	PSC_DUMP(
-		cerr << "init_regmap: live: ";
+		sblog << "init_regmap: live: ";
 		dump::dump_set(sh, live);
-		cerr << "\n";
+		sblog << "\n";
 	);
 
 	for (val_set::iterator I = live.begin(sh), E = live.end(sh); I != E; ++I) {
@@ -815,9 +812,9 @@ void post_scheduler::init_regmap() {
 		sel_chan r = v->gpr;
 
 		PSC_DUMP(
-			cerr << "init_regmap:  " << r << " <= ";
+			sblog << "init_regmap:  " << r << " <= ";
 			dump::dump_val(v);
-			cerr << "\n";
+			sblog << "\n";
 		);
 
 		assert(r);
@@ -847,15 +844,15 @@ void post_scheduler::process_alu(container_node *c) {
 		unsigned uc = init_ucm(c, n);
 
 		PSC_DUMP(
-			cerr << "process_alu uc=" << uc << "  ";
+			sblog << "process_alu uc=" << uc << "  ";
 			dump::dump_op(n);
-			cerr << "  ";
+			sblog << "  ";
 		);
 
 		if (uc) {
 			n->remove();
 			pending.push_back(n);
-			PSC_DUMP( cerr << "pending\n"; );
+			PSC_DUMP( sblog << "pending\n"; );
 		} else {
 			release_op(n);
 		}
@@ -867,9 +864,9 @@ void post_scheduler::process_alu(container_node *c) {
 void post_scheduler::update_local_interferences() {
 
 	PSC_DUMP(
-		cerr << "update_local_interferences : ";
+		sblog << "update_local_interferences : ";
 		dump::dump_set(sh, live);
-		cerr << "\n";
+		sblog << "\n";
 	);
 
 
@@ -894,7 +891,7 @@ void post_scheduler::update_live_src_vec(vvec &vv, val_set *born, bool src) {
 				if (!v->is_prealloc()) {
 					if (!cleared_interf.contains(v)) {
 						PSC_DUMP(
-							cerr << "clearing interferences for " << *v << "\n";
+							sblog << "clearing interferences for " << *v << "\n";
 						);
 						v->interferences.clear();
 						cleared_interf.add_val(v);
@@ -922,11 +919,11 @@ void post_scheduler::update_live_dst_vec(vvec &vv) {
 		} else if (v->is_any_gpr()) {
 			if (!live.remove_val(v)) {
 				PSC_DUMP(
-						cerr << "failed to remove ";
+						sblog << "failed to remove ";
 				dump::dump_val(v);
-				cerr << " from live : ";
+				sblog << " from live : ";
 				dump::dump_set(sh, live);
-				cerr << "\n";
+				sblog << "\n";
 				);
 			}
 		}
@@ -947,9 +944,9 @@ void post_scheduler::process_group() {
 	recolor_locals();
 
 	PSC_DUMP(
-		cerr << "process_group: live_before : ";
+		sblog << "process_group: live_before : ";
 		dump::dump_set(sh, live);
-		cerr << "\n";
+		sblog << "\n";
 	);
 
 	for (unsigned s = 0; s < ctx.num_slots; ++s) {
@@ -961,9 +958,9 @@ void post_scheduler::process_group() {
 	}
 
 	PSC_DUMP(
-		cerr << "process_group: live_after : ";
+		sblog << "process_group: live_after : ";
 		dump::dump_set(sh, live);
-		cerr << "\n";
+		sblog << "\n";
 	);
 
 	update_local_interferences();
@@ -979,9 +976,9 @@ void post_scheduler::process_group() {
 void post_scheduler::init_globals(val_set &s, bool prealloc) {
 
 	PSC_DUMP(
-		cerr << "init_globals: ";
+		sblog << "init_globals: ";
 		dump::dump_set(sh, s);
-		cerr << "\n";
+		sblog << "\n";
 	);
 
 	for (val_set::iterator I = s.begin(sh), E = s.end(sh); I != E; ++I) {
@@ -1039,13 +1036,13 @@ void post_scheduler::schedule_alu(container_node *c) {
 	}
 
 	if (!ready.empty()) {
-		cerr << "##post_scheduler: unscheduled ready instructions :";
+		sblog << "##post_scheduler: unscheduled ready instructions :";
 		dump::dump_op_list(&ready);
 		assert(!"unscheduled ready instructions");
 	}
 
 	if (!pending.empty()) {
-		cerr << "##post_scheduler: unscheduled pending instructions :";
+		sblog << "##post_scheduler: unscheduled pending instructions :";
 		dump::dump_op_list(&pending);
 		assert(!"unscheduled pending instructions");
 	}
@@ -1066,7 +1063,7 @@ void post_scheduler::add_interferences(value *v, sb_bitset &rb, val_set &vs) {
 			unsigned r = gpr.sel();
 
 			PSC_DUMP(
-				cerr << "\tadd_interferences: " << *vi << "\n";
+				sblog << "\tadd_interferences: " << *vi << "\n";
 			);
 
 			if (rb.size() <= r)
@@ -1080,9 +1077,9 @@ void post_scheduler::set_color_local_val(value *v, sel_chan color) {
 	v->gpr = color;
 
 	PSC_DUMP(
-		cerr << "     recolored: ";
+		sblog << "     recolored: ";
 		dump::dump_val(v);
-		cerr << "\n";
+		sblog << "\n";
 	);
 }
 
@@ -1111,15 +1108,15 @@ bool post_scheduler::recolor_local(value *v) {
 	unsigned chan = v->gpr.chan();
 
 	PSC_DUMP(
-		cerr << "recolor_local: ";
+		sblog << "recolor_local: ";
 		dump::dump_val(v);
-		cerr << "   interferences: ";
+		sblog << "   interferences: ";
 		dump::dump_set(sh, v->interferences);
-		cerr << "\n";
+		sblog << "\n";
 		if (v->chunk) {
-			cerr << "     in chunk: ";
+			sblog << "     in chunk: ";
 			coalescer::dump_chunk(v->chunk);
-			cerr << "\n";
+			sblog << "\n";
 		}
 	);
 
@@ -1128,7 +1125,7 @@ bool post_scheduler::recolor_local(value *v) {
 				E = v->chunk->values.end(); I != E; ++I) {
 			value *v2 = *I;
 
-			PSC_DUMP( cerr << "   add_interferences for " << *v2 << " :\n"; );
+			PSC_DUMP( sblog << "   add_interferences for " << *v2 << " :\n"; );
 
 			add_interferences(v, rb, v2->interferences);
 		}
@@ -1138,11 +1135,11 @@ bool post_scheduler::recolor_local(value *v) {
 
 	PSC_DUMP(
 		unsigned sz = rb.size();
-		cerr << "registers bits: " << sz;
+		sblog << "registers bits: " << sz;
 		for (unsigned r = 0; r < sz; ++r) {
 			if ((r & 7) == 0)
-				cerr << "\n  " << r << "   ";
-			cerr << (rb.get(r) ? 1 : 0);
+				sblog << "\n  " << r << "   ";
+			sblog << (rb.get(r) ? 1 : 0);
 		}
 	);
 
@@ -1182,9 +1179,9 @@ void post_scheduler::emit_load_ar() {
 	alu_node *a = alu.create_ar_load();
 
 	if (!rt.try_reserve(a)) {
-		cerr << "can't emit AR load : ";
+		sblog << "can't emit AR load : ";
 		dump::dump_op(a);
-		cerr << "\n";
+		sblog << "\n";
 	}
 
 	alu.current_ar = 0;
@@ -1206,11 +1203,11 @@ bool post_scheduler::unmap_dst_val(value *d) {
 
 		if (c && c!=d && (!c->chunk || c->chunk != d->chunk)) {
 			PSC_DUMP(
-				cerr << "dst value conflict : ";
+				sblog << "dst value conflict : ";
 				dump::dump_val(d);
-				cerr << "   regmap contains ";
+				sblog << "   regmap contains ";
 				dump::dump_val(c);
-				cerr << "\n";
+				sblog << "\n";
 			);
 			assert(!"scheduler error");
 			return false;
@@ -1232,7 +1229,7 @@ bool post_scheduler::unmap_dst(alu_node *n) {
 
 			if (d->is_AR()) {
 				if (alu.current_ar != d) {
-					cerr << "loading wrong ar value\n";
+					sblog << "loading wrong ar value\n";
 					assert(0);
 				} else {
 					alu.current_ar = NULL;
@@ -1271,11 +1268,11 @@ bool post_scheduler::map_src_val(value *v) {
 		c = F->second;
 		if (!v->v_equal(c)) {
 			PSC_DUMP(
-				cerr << "can't map src value ";
+				sblog << "can't map src value ";
 				dump::dump_val(v);
-				cerr << ", regmap contains ";
+				sblog << ", regmap contains ";
 				dump::dump_val(c);
-				cerr << "\n";
+				sblog << "\n";
 			);
 			return false;
 		}
@@ -1305,7 +1302,7 @@ bool post_scheduler::map_src_vec(vvec &vv, bool src) {
 				if (rel != alu.current_ar) {
 					if (alu.current_ar) {
 						PSC_DUMP(
-							cerr << "  current_AR is " << *alu.current_ar
+							sblog << "  current_AR is " << *alu.current_ar
 								<< "  trying to use " << *rel << "\n";
 						);
 						return false;
@@ -1314,7 +1311,7 @@ bool post_scheduler::map_src_vec(vvec &vv, bool src) {
 					alu.current_ar = rel;
 
 					PSC_DUMP(
-						cerr << "  new current_AR assigned: " << *alu.current_ar
+						sblog << "  new current_AR assigned: " << *alu.current_ar
 							<< "\n";
 					);
 				}
@@ -1341,16 +1338,16 @@ bool post_scheduler::map_src(alu_node *n) {
 
 void post_scheduler::dump_regmap() {
 
-	cerr << "# REGMAP :\n";
+	sblog << "# REGMAP :\n";
 
 	for(rv_map::iterator I = regmap.begin(), E = regmap.end(); I != E; ++I) {
-		cerr << "  # " << I->first << " => " << *(I->second) << "\n";
+		sblog << "  # " << I->first << " => " << *(I->second) << "\n";
 	}
 
 	if (alu.current_ar)
-		cerr << "    current_AR: " << *alu.current_ar << "\n";
+		sblog << "    current_AR: " << *alu.current_ar << "\n";
 	if (alu.current_pr)
-		cerr << "    current_PR: " << *alu.current_pr << "\n";
+		sblog << "    current_PR: " << *alu.current_pr << "\n";
 }
 
 void post_scheduler::recolor_locals() {
@@ -1377,7 +1374,7 @@ bool post_scheduler::check_interferences() {
 	bool discarded = false;
 
 	PSC_DUMP(
-			cerr << "check_interferences: before: \n";
+			sblog << "check_interferences: before: \n";
 	dump_regmap();
 	);
 
@@ -1406,9 +1403,9 @@ bool post_scheduler::check_interferences() {
 		PSC_DUMP(
 				for (unsigned i = 0; i < 5; ++i) {
 					if (interf_slots & (1 << i)) {
-						cerr << "!!!!!! interf slot: " << i << "  : ";
+						sblog << "!!!!!! interf slot: " << i << "  : ";
 						dump::dump_op(rt.slot(i));
-						cerr << "\n";
+						sblog << "\n";
 					}
 				}
 		);
@@ -1416,7 +1413,7 @@ bool post_scheduler::check_interferences() {
 		if (!interf_slots)
 			break;
 
-		PSC_DUMP( cerr << "ci: discarding slots " << interf_slots << "\n"; );
+		PSC_DUMP( sblog << "ci: discarding slots " << interf_slots << "\n"; );
 
 		rt.discard_slots(interf_slots, alu.conflict_nodes);
 		regmap = prev_regmap;
@@ -1425,7 +1422,7 @@ bool post_scheduler::check_interferences() {
 	} while(1);
 
 	PSC_DUMP(
-		cerr << "check_interferences: after: \n";
+		sblog << "check_interferences: after: \n";
 		dump_regmap();
 	);
 
@@ -1446,14 +1443,14 @@ unsigned post_scheduler::try_add_instruction(node *n) {
 		unsigned cnt = __builtin_popcount(slots);
 
 		if ((slots & avail_slots) != slots) {
-			PSC_DUMP( cerr << "   no slots \n"; );
+			PSC_DUMP( sblog << "   no slots \n"; );
 			return 0;
 		}
 
 		p->update_packed_items(ctx);
 
 		if (!rt.try_reserve(p)) {
-			PSC_DUMP( cerr << "   reservation failed \n"; );
+			PSC_DUMP( sblog << "   reservation failed \n"; );
 			return 0;
 		}
 
@@ -1497,17 +1494,17 @@ unsigned post_scheduler::try_add_instruction(node *n) {
 		}
 
 		if (!allowed_slots) {
-			PSC_DUMP( cerr << "   no suitable slots\n"; );
+			PSC_DUMP( sblog << "   no suitable slots\n"; );
 			return 0;
 		}
 
 		slot = __builtin_ctz(allowed_slots);
 		a->bc.slot = slot;
 
-		PSC_DUMP( cerr << "slot: " << slot << "\n"; );
+		PSC_DUMP( sblog << "slot: " << slot << "\n"; );
 
 		if (!rt.try_reserve(a)) {
-			PSC_DUMP( cerr << "   reservation failed\n"; );
+			PSC_DUMP( sblog << "   reservation failed\n"; );
 			return 0;
 		}
 
@@ -1533,9 +1530,9 @@ bool post_scheduler::check_copy(node *n) {
 	if (s->gpr == d->gpr) {
 
 		PSC_DUMP(
-			cerr << "check_copy: ";
+			sblog << "check_copy: ";
 			dump::dump_op(n);
-			cerr << "\n";
+			sblog << "\n";
 		);
 
 		rv_map::iterator F = regmap.find(d->gpr);
@@ -1543,13 +1540,13 @@ bool post_scheduler::check_copy(node *n) {
 
 		if (d->is_prealloc()) {
 			if (gpr_free) {
-				PSC_DUMP( cerr << "    copy not ready...\n";);
+				PSC_DUMP( sblog << "    copy not ready...\n";);
 				return true;
 			}
 
 			value *rv = F->second;
 			if (rv != d && (!rv->chunk || rv->chunk != d->chunk)) {
-				PSC_DUMP( cerr << "    copy not ready(2)...\n";);
+				PSC_DUMP( sblog << "    copy not ready(2)...\n";);
 				return true;
 			}
 
@@ -1563,7 +1560,7 @@ bool post_scheduler::check_copy(node *n) {
 
 		release_src_values(n);
 		n->remove();
-		PSC_DUMP( cerr << "    copy coalesced...\n";);
+		PSC_DUMP( sblog << "    copy coalesced...\n";);
 		return true;
 	}
 	return false;
@@ -1573,9 +1570,9 @@ void post_scheduler::dump_group(alu_group_tracker &rt) {
 	for (unsigned i = 0; i < 5; ++i) {
 		node *n = rt.slot(i);
 		if (n) {
-			cerr << "slot " << i << " : ";
+			sblog << "slot " << i << " : ";
 			dump::dump_op(n);
-			cerr << "\n";
+			sblog << "\n";
 		}
 	}
 }
@@ -1611,7 +1608,7 @@ bool post_scheduler::prepare_alu_group() {
 	unsigned i1 = 0;
 
 	PSC_DUMP(
-		cerr << "prepare_alu_group: starting...\n";
+		sblog << "prepare_alu_group: starting...\n";
 		dump_group(rt);
 	);
 
@@ -1631,9 +1628,9 @@ bool post_scheduler::prepare_alu_group() {
 			node *n = *I;
 
 			PSC_DUMP(
-				cerr << "p_a_g: ";
+				sblog << "p_a_g: ";
 				dump::dump_op(n);
-				cerr << "\n";
+				sblog << "\n";
 			);
 
 
@@ -1643,12 +1640,12 @@ bool post_scheduler::prepare_alu_group() {
 				continue;
 
 			PSC_DUMP(
-				cerr << "current group:\n";
+				sblog << "current group:\n";
 				dump_group(rt);
 			);
 
 			if (rt.inst_count() == ctx.num_slots) {
-				PSC_DUMP( cerr << " all slots used\n"; );
+				PSC_DUMP( sblog << " all slots used\n"; );
 				break;
 			}
 		}
@@ -1671,10 +1668,10 @@ bool post_scheduler::prepare_alu_group() {
 	} while (1);
 
 	PSC_DUMP(
-		cerr << " prepare_alu_group done, " << rt.inst_count()
+		sblog << " prepare_alu_group done, " << rt.inst_count()
 	          << " slot(s) \n";
 
-		cerr << "$$$$$$$$PAG i1=" << i1
+		sblog << "$$$$$$$$PAG i1=" << i1
 				<< "  ready " << ready.count()
 				<< "  pending " << pending.count()
 				<< "  conflicting " << alu.conflict_nodes.count()
@@ -1692,9 +1689,9 @@ void post_scheduler::release_src_values(node* n) {
 
 void post_scheduler::release_op(node *n) {
 	PSC_DUMP(
-		cerr << "release_op ";
+		sblog << "release_op ";
 		dump::dump_op(n);
-		cerr << "\n";
+		sblog << "\n";
 	);
 
 	n->remove();
@@ -1790,7 +1787,7 @@ void alu_clause_tracker::emit_group() {
 
 	new_group();
 
-	PSC_DUMP( cerr << "   #### group emitted\n"; );
+	PSC_DUMP( sblog << "   #### group emitted\n"; );
 }
 
 void alu_clause_tracker::emit_clause(container_node *c) {
@@ -1811,7 +1808,7 @@ void alu_clause_tracker::emit_clause(container_node *c) {
 	slot_count = 0;
 	kt.reset();
 
-	PSC_DUMP( cerr << "######### ALU clause emitted\n"; );
+	PSC_DUMP( sblog << "######### ALU clause emitted\n"; );
 }
 
 bool alu_clause_tracker::check_clause_limits() {
@@ -1851,7 +1848,7 @@ void literal_tracker::init_group_literals(alu_group_node* g) {
 		g->literals.push_back(lt[i]);
 
 		PSC_DUMP(
-			cerr << "literal emitted: " << lt[i].f
+			sblog << "literal emitted: " << lt[i].f
 				<< "  0x" << std::hex << lt[i].u
 				<< std::dec << "   " << lt[i].i << "\n";
 		);
@@ -1948,27 +1945,27 @@ alu_node* alu_clause_tracker::create_ar_load() {
 	a->src.push_back(current_ar);
 
 	PSC_DUMP(
-		cerr << "created AR load: ";
+		sblog << "created AR load: ";
 		dump::dump_op(a);
-		cerr << "\n";
+		sblog << "\n";
 	);
 
 	return a;
 }
 
 void alu_clause_tracker::discard_current_group() {
-	PSC_DUMP( cerr << "act::discard_current_group\n"; );
+	PSC_DUMP( sblog << "act::discard_current_group\n"; );
 	grp().discard_all_slots(conflict_nodes);
 }
 
 void rp_gpr_tracker::dump() {
-	cerr << "=== gpr_tracker dump:\n";
+	sblog << "=== gpr_tracker dump:\n";
 	for (int c = 0; c < 3; ++c) {
-		cerr << "cycle " << c << "      ";
+		sblog << "cycle " << c << "      ";
 		for (int h = 0; h < 4; ++h) {
-			cerr << rp[c][h] << ":" << uc[c][h] << "   ";
+			sblog << rp[c][h] << ":" << uc[c][h] << "   ";
 		}
-		cerr << "\n";
+		sblog << "\n";
 	}
 }
 
diff --git a/src/gallium/drivers/r600/sb/sb_shader.cpp b/src/gallium/drivers/r600/sb/sb_shader.cpp
index f0665efb2ca..e8da20ce724 100644
--- a/src/gallium/drivers/r600/sb/sb_shader.cpp
+++ b/src/gallium/drivers/r600/sb/sb_shader.cpp
@@ -26,13 +26,10 @@
 
 #include "sb_bc.h"
 #include "sb_shader.h"
-
 #include "sb_pass.h"
 
 namespace r600_sb {
 
-using std::cerr;
-
 shader::shader(sb_context &sctx, shader_target t, unsigned id)
 : ctx(sctx), next_temp_value_index(temp_regid_offset),
   prep_regs_count(), pred_sels(),
@@ -400,7 +397,7 @@ void shader::add_gpr_array(unsigned gpr_start, unsigned gpr_count,
 			gpr_array *a = new gpr_array(
 					sel_chan(gpr_start, chan), gpr_count);
 
-			SB_DUMP_PASS( cerr << "add_gpr_array: @" << a->base_gpr
+			SB_DUMP_PASS( sblog << "add_gpr_array: @" << a->base_gpr
 			         << " [" << a->array_size << "]\n";
 			);
 
@@ -696,39 +693,39 @@ void shader_stats::accumulate(shader_stats& s) {
 	cf += s.cf;
 }
 
-void shader_stats::dump(std::ostream& o) {
-	o << "dw:" << ndw << ", gpr:" << ngpr << ", stk:" << nstack
+void shader_stats::dump() {
+	sblog << "dw:" << ndw << ", gpr:" << ngpr << ", stk:" << nstack
 			<< ", alu groups:" << alu_groups << ", alu clauses: " << alu_clauses
 			<< ", alu:" << alu << ", fetch:" << fetch
 			<< ", fetch clauses:" << fetch_clauses
 			<< ", cf:" << cf;
 
 	if (shaders > 1)
-		o << ", shaders:" << shaders;
+		sblog << ", shaders:" << shaders;
 
-	o << "\n";
+	sblog << "\n";
 }
 
-static void print_diff(std::ostream &o, unsigned d1, unsigned d2) {
+static void print_diff(unsigned d1, unsigned d2) {
 	if (d1)
-		o << ((int)d2 - (int)d1) * 100 / (int)d1 << "%";
+		sblog << ((int)d2 - (int)d1) * 100 / (int)d1 << "%";
 	else if (d2)
-		o << "N/A";
+		sblog << "N/A";
 	else
-		o << "0%";
-}
-
-void shader_stats::dump_diff(std::ostream& o, shader_stats& s) {
-	o << "dw:"; print_diff(o, ndw, s.ndw);
-	o << ", gpr:" ; print_diff(o, ngpr, s.ngpr);
-	o << ", stk:" ; print_diff(o, nstack, s.nstack);
-	o << ", alu groups:" ; print_diff(o, alu_groups, s.alu_groups);
-	o << ", alu clauses: " ; print_diff(o, alu_clauses, s.alu_clauses);
-	o << ", alu:" ; print_diff(o, alu, s.alu);
-	o << ", fetch:" ; print_diff(o, fetch, s.fetch);
-	o << ", fetch clauses:" ; print_diff(o, fetch_clauses, s.fetch_clauses);
-	o << ", cf:" ; print_diff(o, cf, s.cf);
-	o << "\n";
+		sblog << "0%";
+}
+
+void shader_stats::dump_diff(shader_stats& s) {
+	sblog << "dw:"; print_diff(ndw, s.ndw);
+	sblog << ", gpr:" ; print_diff(ngpr, s.ngpr);
+	sblog << ", stk:" ; print_diff(nstack, s.nstack);
+	sblog << ", alu groups:" ; print_diff(alu_groups, s.alu_groups);
+	sblog << ", alu clauses: " ; print_diff(alu_clauses, s.alu_clauses);
+	sblog << ", alu:" ; print_diff(alu, s.alu);
+	sblog << ", fetch:" ; print_diff(fetch, s.fetch);
+	sblog << ", fetch clauses:" ; print_diff(fetch_clauses, s.fetch_clauses);
+	sblog << ", cf:" ; print_diff(cf, s.cf);
+	sblog << "\n";
 }
 
 } // namespace r600_sb
diff --git a/src/gallium/drivers/r600/sb/sb_valtable.cpp b/src/gallium/drivers/r600/sb/sb_valtable.cpp
index 2aaccd00dc5..5e6aca04928 100644
--- a/src/gallium/drivers/r600/sb/sb_valtable.cpp
+++ b/src/gallium/drivers/r600/sb/sb_valtable.cpp
@@ -32,7 +32,6 @@
 #define VT_DUMP(q)
 #endif
 
-#include <iostream>
 #include <cstring>
 
 #include "sb_shader.h"
@@ -40,11 +39,9 @@
 
 namespace r600_sb {
 
-using std::cerr;
-
 static const char * chans = "xyzw01?_";
 
-std::ostream& operator << (std::ostream &o, value &v) {
+sb_ostream& operator << (sb_ostream &o, value &v) {
 
 	bool dead = v.flags & VLF_DEAD;
 
@@ -73,9 +70,8 @@ std::ostream& operator << (std::ostream &o, value &v) {
 	}
 		break;
 	case VLK_CONST:
-		o << v.literal_value.f << "|" << std::hex
-			<< std::showbase << v.literal_value.u
-			<< std::dec << std::noshowbase;
+		o << v.literal_value.f << "|";
+		o.print_zw_hex(v.literal_value.u, 8);
 		break;
 	case VLK_PARAM:
 		o << "Param" << (v.select.sel() - ALU_SRC_PARAM_OFFSET)
@@ -137,7 +133,7 @@ void value_table::add_value(value* v) {
 	}
 
 	VT_DUMP(
-		cerr << "gvn add_value ";
+		sblog << "gvn add_value ";
 		dump::dump_val(v);
 	);
 
@@ -148,9 +144,9 @@ void value_table::add_value(value* v) {
 
 	if (v->def && ex.try_fold(v)) {
 		VT_DUMP(
-			cerr << " folded: ";
+			sblog << " folded: ";
 			dump::dump_val(v->gvn_source);
-			cerr << "\n";
+			sblog << "\n";
 		);
 		return;
 	}
@@ -166,9 +162,9 @@ void value_table::add_value(value* v) {
 			v->gvn_source = c->gvn_source;
 
 			VT_DUMP(
-				cerr << " found : equal to ";
+				sblog << " found : equal to ";
 				dump::dump_val(v->gvn_source);
-				cerr << "\n";
+				sblog << "\n";
 			);
 			return;
 		}
@@ -176,7 +172,7 @@ void value_table::add_value(value* v) {
 
 	v->gvn_source = v;
 	VT_DUMP(
-		cerr << " added new\n";
+		sblog << " added new\n";
 	);
 }
 
@@ -217,11 +213,11 @@ void value_table::get_values(vvec& v) {
 
 void value::add_use(node* n, use_kind kind, int arg) {
 	if (0) {
-	cerr << "add_use ";
+	sblog << "add_use ";
 	dump::dump_val(this);
-	cerr << "   =>  ";
+	sblog << "   =>  ";
 	dump::dump_op(n);
-	cerr << "     kind " << kind << "    arg " << arg << "\n";
+	sblog << "     kind " << kind << "    arg " << arg << "\n";
 	}
 	uses = new use_info(n, kind, arg, uses);
 }