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Loader -- return tool_error

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This commit is contained in:
Kelvin Sherlock 2016-08-09 08:17:27 -04:00
parent 5b0d9e7d07
commit c8ea11f1b0
2 changed files with 18 additions and 9 deletions
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20
toolbox/loader.cpp
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@ -43,6 +43,9 @@
#include "mm.h"
#include <macos/sysequ.h>
#include <macos/tool_return.h>
using MacOS::tool_return;
enum {
fsCurPerm = 0x00, /* open access permissions in ioPermssn */
@ -155,7 +158,7 @@ namespace Loader {
// load code seg 0.
uint16_t LoadCode0(Segment0Info &rv)
tool_return<void> LoadCode0(Segment0Info &rv)
{
uint32_t rHandle;
uint32_t size;
@ -208,11 +211,11 @@ namespace Loader {
rv.jtEnd = rv.jtStart + rv.jtSize;
// TODO -- should ReleaseResource on rHandle.
return 0;
return MacOS::noErr;
}
// load a standard code segment.
uint16_t LoadCode(uint16_t segment)
tool_return<void> LoadCode(uint16_t segment)
{
SegmentInfo si;
@ -238,7 +241,7 @@ namespace Loader {
Segments[segment] = si;
return 0;
return MacOS::noErr;
}
@ -247,10 +250,10 @@ namespace Loader {
namespace Native
{
uint16_t LoadFile(const std::string &path)
tool_return<void> LoadFile(const std::string &path)
{
uint16_t err;
tool_return<void> err;
// open the file
// load code seg 0
@ -267,6 +270,7 @@ namespace Loader {
// load code 0.
Segment0Info seg0;
err = LoadCode0(seg0);
if (!err) return err;
// iterate through the jump table to get the other
// code segments to load
@ -304,7 +308,7 @@ namespace Loader {
if (seg >= Segments.size() || Segments[seg].address == 0)
{
err = LoadCode(seg);
if (err) return err;
if (!err) return err;
const auto &p = Segments[seg];
if (p.farModel)
@ -360,7 +364,7 @@ namespace Loader {
return 0;
return MacOS::noErr;
}

7
toolbox/loader.h
View File

@ -6,11 +6,16 @@
#include <cstdint>
#include <macos/tool_return.h>
namespace Loader {
typedef std::map<std::string, std::pair<uint32_t, uint32_t>> DebugNameTable;
namespace Native {
using MacOS::tool_return;
/*
* loads the file
* sets registers PC and A5.
@ -18,7 +23,7 @@ namespace Loader {
*
* Dependencies: MM, RM
*/
uint16_t LoadFile(const std::string &path);
tool_return<void> LoadFile(const std::string &path);
// scans segments for MacsBug debug names.
// associates them with the start of the segment.