From bf59a28f80fc321b139772804d52e441194040f7 Mon Sep 17 00:00:00 2001
From: Clifford Wolf <clifford@clifford.at>
Date: Sun, 9 Jun 2013 00:07:26 +0200
Subject: [PATCH] Look for yosys-abc and yosys-svgviewer where the main exe is

---
 kernel/driver.cc    | 17 +++++++++++++++++
 kernel/register.h   |  5 ++++-
 passes/abc/abc.cc   |  2 +-
 passes/cmds/show.cc |  2 +-
 4 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/kernel/driver.cc b/kernel/driver.cc
index b43df868d..c24b293fc 100644
--- a/kernel/driver.cc
+++ b/kernel/driver.cc
@@ -22,6 +22,7 @@
 #include <readline/history.h>
 #include <string.h>
 #include <unistd.h>
+#include <libgen.h>
 #include <dlfcn.h>
 
 #include "kernel/rtlil.h"
@@ -343,6 +344,22 @@ struct TclPass : public Pass {
 } TclPass;
 #endif
 
+std::string rewrite_yosys_exe(std::string exe)
+{
+	char buffer[1024];
+	ssize_t buflen = readlink("/proc/self/exe", buffer, sizeof(buffer)-1);
+
+	if (buflen < 0)
+		return exe;
+
+	buffer[buflen] = 0;
+	std::string newexe = stringf("%s/%s", dirname(buffer), exe.c_str());
+	if (access(newexe.c_str(), X_OK) == 0)
+		return newexe;
+
+	return exe;
+}
+
 int main(int argc, char **argv)
 {
 	std::string frontend_command = "auto";
diff --git a/kernel/register.h b/kernel/register.h
index 5bd8216c7..849549acc 100644
--- a/kernel/register.h
+++ b/kernel/register.h
@@ -32,6 +32,9 @@ extern Tcl_Interp *yosys_get_tcl_interp();
 extern RTLIL::Design *yosys_get_tcl_design();
 #endif
 
+// implemented in driver.cc
+std::string rewrite_yosys_exe(std::string exe);
+
 struct Pass
 {
 	std::string pass_name, short_help;
@@ -83,7 +86,7 @@ struct Backend : Pass
 	static void backend_call(RTLIL::Design *design, FILE *f, std::string filename, std::vector<std::string> args);
 };
 
-// implemented in kernel/select.cc
+// implemented in passes/cmds/select.cc
 extern void handle_extra_select_args(Pass *pass, std::vector<std::string> args, size_t argidx, size_t args_size, RTLIL::Design *design);
 
 namespace REGISTER_INTERN {
diff --git a/passes/abc/abc.cc b/passes/abc/abc.cc
index 3c6700147..5ceaeb48f 100644
--- a/passes/abc/abc.cc
+++ b/passes/abc/abc.cc
@@ -665,7 +665,7 @@ struct AbcPass : public Pass {
 		log_header("Executing ABC pass (technology mapping using ABC).\n");
 		log_push();
 
-		std::string exe_file = "yosys-abc";
+		std::string exe_file = rewrite_yosys_exe("yosys-abc");
 		std::string script_file, liberty_file;
 		bool cleanup = true;
 
diff --git a/passes/cmds/show.cc b/passes/cmds/show.cc
index c66320b3e..4ed4a95cb 100644
--- a/passes/cmds/show.cc
+++ b/passes/cmds/show.cc
@@ -672,7 +672,7 @@ struct ShowPass : public Pass {
 				log_cmd_error("Shell command failed!\n");
 		} else
 		if (format.empty()) {
-			cmd = stringf("fuser -s '%s' || yosys-svgviewer '%s' &", out_file.c_str(), out_file.c_str());
+			cmd = stringf("fuser -s '%s' || '%s' '%s' &", out_file.c_str(), rewrite_yosys_exe("yosys-svgviewer").c_str(), out_file.c_str());
 			log("Exec: %s\n", cmd.c_str());
 			if (system(cmd.c_str()) != 0)
 				log_cmd_error("Shell command failed!\n");
-- 
2.30.2