From 6272c9355600ee37e07b603bc1bcbf1d16ef58ee Mon Sep 17 00:00:00 2001
From: uz <uz@b7a2c559-68d2-44c3-8de9-860c34a00d81>
Date: Sun, 8 Aug 2010 15:43:13 +0000
Subject: [PATCH] Allow access to segment information.

git-svn-id: svn://svn.cc65.org/cc65/trunk@4796 b7a2c559-68d2-44c3-8de9-860c34a00d81
---
 src/dbginfo/dbginfo.c | 49 +++++++++++++++++++++++++++++++++++++++++++
 src/dbginfo/dbginfo.h | 19 +++++++++++++++++
 src/dbginfo/dbgtest.c | 24 +++++++++++++++------
 3 files changed, 86 insertions(+), 6 deletions(-)

diff --git a/src/dbginfo/dbginfo.c b/src/dbginfo/dbginfo.c
index c281a9236..cb46daad8 100644
--- a/src/dbginfo/dbginfo.c
+++ b/src/dbginfo/dbginfo.c
@@ -2376,6 +2376,55 @@ void cc65_free_filelist (cc65_dbginfo Handle, cc65_filelist* List)
 
 
 
+cc65_segmentlist* cc65_get_segmentlist (cc65_dbginfo Handle)
+/* Return a list of all segments referenced in the debug information */
+{
+    DbgInfo*            Info;
+    Collection*         SegInfoByName;
+    cc65_segmentlist*   D;
+    unsigned            I;
+
+    /* Check the parameter */
+    assert (Handle != 0);
+
+    /* The handle is actually a pointer to a debug info struct */
+    Info = (DbgInfo*) Handle;
+
+    /* Get a pointer to the file list */
+    SegInfoByName = &Info->SegInfoByName;
+
+    /* Allocate memory for the data structure returned to the caller */
+    D = xmalloc (sizeof (*D) - sizeof (D->data[0]) +
+                 CollCount (SegInfoByName) * sizeof (D->data[0]));
+
+    /* Fill in the data */
+    D->count = CollCount (SegInfoByName);
+    for (I = 0; I < CollCount (SegInfoByName); ++I) {
+
+        /* Get this item */
+        SegInfo* S = CollAt (SegInfoByName, I);
+
+        /* Copy the data */
+        D->data[I].name  = S->SegName;
+        D->data[I].start = S->Start;
+        D->data[I].end   = S->Start + S->Size - 1;
+    }
+
+    /* Return the result */
+    return D;
+}
+
+
+
+void cc65_free_segmentlist (cc65_dbginfo Handle, cc65_segmentlist* List)
+/* Free a file list returned by cc65_get_filelist() */
+{
+    /* Just for completeness, check the handle */
+    assert (Handle != 0);
+
+    /* Just free the memory */
+    xfree (List);
+}
 
 
 
diff --git a/src/dbginfo/dbginfo.h b/src/dbginfo/dbginfo.h
index edb9dfed7..11c5ad084 100644
--- a/src/dbginfo/dbginfo.h
+++ b/src/dbginfo/dbginfo.h
@@ -101,6 +101,19 @@ struct cc65_filelist {
 
 
 
+/* A list of segments with some information */
+typedef struct cc65_segmentlist cc65_segmentlist;
+struct cc65_segmentlist {
+    unsigned            count;          /* Number of data sets that follow */
+    struct {
+        const char*     name;           /* Name of the file */
+        cc65_addr       start;          /* Start address of segment */
+        cc65_addr       end;            /* End address of segment */
+    }                   data[1];
+};
+
+
+
 /*****************************************************************************/
 /*     	      	       		     Code  				     */
 /*****************************************************************************/
@@ -138,6 +151,12 @@ cc65_filelist* cc65_get_filelist (cc65_dbginfo handle);
 void cc65_free_filelist (cc65_dbginfo handle, cc65_filelist* list);
 /* free a file list returned by cc65_get_filelist() */
 
+cc65_segmentlist* cc65_get_segmentlist (cc65_dbginfo handle);
+/* Return a list of all segments referenced in the debug information */
+
+void cc65_free_segmentlist (cc65_dbginfo handle, cc65_segmentlist* list);
+/* Free a file list returned by cc65_get_filelist() */
+
 
 
 /* End of dbginfo.h */
diff --git a/src/dbginfo/dbgtest.c b/src/dbginfo/dbgtest.c
index adb3cdb12..6d118b8c8 100644
--- a/src/dbginfo/dbgtest.c
+++ b/src/dbginfo/dbgtest.c
@@ -63,12 +63,13 @@ static void Usage (void)
 
 int main (int argc, char** argv)
 {
-    const char*    Input;
-    cc65_dbginfo   Info;
-    cc65_filelist* Files;
-    cc65_lineinfo* L;
-    unsigned       I;
-    unsigned long  Addr;
+    const char*         Input;
+    cc65_dbginfo        Info;
+    cc65_filelist*      Files;
+    cc65_segmentlist*   Segments;
+    cc65_lineinfo*      L;
+    unsigned            I;
+    unsigned long       Addr;
 
 
     /* Input file is argument */
@@ -93,6 +94,17 @@ int main (int argc, char** argv)
     }
     cc65_free_filelist (Info, Files);
 
+    /* Output a list of segments */
+    printf ("Segments processed when linking:\n");
+    Segments = cc65_get_segmentlist (Info);
+    for (I = 0; I < Segments->count; ++I) {
+        printf ("  %-20s $%06lX-$%06lX\n",
+                Segments->data[I].name,
+                (unsigned long) Segments->data[I].start,
+                (unsigned long) Segments->data[I].end);
+    }
+    cc65_free_segmentlist (Info, Segments);
+
     /* Check one line */
     printf ("Requesting line info for crt0.s(59):\n");
     L = cc65_lineinfo_byname (Info, "crt0.s", 59);
-- 
2.39.5