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authorMichael Snyder <msnyder@vmware.com>2000-10-31 19:35:04 +0000
committerMichael Snyder <msnyder@vmware.com>2000-10-31 19:35:04 +0000
commit1a8629c73571e63f55313b354033825a7ef7cad1 (patch)
treeb0150c865c029162f4252d69a03e805e7d6c3263 /gdb/i386-linux-tdep.c
parent8637c0456a215e6f89fbb853ebb88485de5368df (diff)
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2000-10-30 Michael Snyder <msnyder@cleaver.cygnus.com>
* config/sh/tm-linux.h: New file. Include generic tm-linux.h, plus tm-sh.h, then define SVR4_FETCH_LINK_MAP_OFFSETS to use the sh target function instead of the default link map offsets. * config/sh/sh.mt: Add solib.o and solib-svr4.o to TDEPFILES. Use sh/tm-linux.h instead of sh/tm-sh.h. * sh-tdep.c (sh_linux_svr4_fetch_link_map_offsets): New function. Construct target-specific link map offsets. * i386-linux-tdep.c (i386_linux_svr4_fetch_link_map_offsets: New function. Construct target-specific link map offsets. * config/i386/tm-linux.h: Use above function instead of default. 2000-10-30 Michael Snyder <msnyder@cleaver.cygnus.com> * config/i386/tm-linux.h: Remove definition of SVR4_SHARED_LIBS, and inclusion of solib.h. Move up into ../tm-linux.h. config/tm-linux.h: Define SVR4_SHARED_LIBS, include solib.h.
Diffstat (limited to 'gdb/i386-linux-tdep.c')
-rw-r--r--gdb/i386-linux-tdep.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/gdb/i386-linux-tdep.c b/gdb/i386-linux-tdep.c
index c487959..e7fbc38 100644
--- a/gdb/i386-linux-tdep.c
+++ b/gdb/i386-linux-tdep.c
@@ -27,6 +27,7 @@
#include "symtab.h"
#include "symfile.h"
#include "objfiles.h"
+#include "solib-svr4.h" /* for struct link_map_offsets */
/* Recognizing signal handler frames. */
@@ -372,3 +373,45 @@ i386_linux_skip_solib_resolver (CORE_ADDR pc)
return 0;
}
+
+/* Fetch (and possibly build) an appropriate link_map_offsets structure
+ for native i386 linux targets using the struct offsets defined in
+ link.h (but without actual reference to that file).
+
+ This makes it possible to access i386-linux shared libraries from
+ a gdb that was not built on an i386-linux host (for cross debugging).
+ */
+
+struct link_map_offsets *
+i386_linux_svr4_fetch_link_map_offsets (void)
+{
+ static struct link_map_offsets lmo;
+ static struct link_map_offsets *lmp = 0;
+
+ if (lmp == 0)
+ {
+ lmp = &lmo;
+
+ lmo.r_debug_size = 8; /* 20 not actual size but all we need */
+
+ lmo.r_map_offset = 4;
+ lmo.r_map_size = 4;
+
+ lmo.link_map_size = 20; /* 552 not actual size but all we need */
+
+ lmo.l_addr_offset = 0;
+ lmo.l_addr_size = 4;
+
+ lmo.l_name_offset = 4;
+ lmo.l_name_size = 4;
+
+ lmo.l_next_offset = 12;
+ lmo.l_next_size = 4;
+
+ lmo.l_prev_offset = 16;
+ lmo.l_prev_size = 4;
+ }
+
+ return lmp;
+}
+