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authorChris Johns <chrisj@rtems.org>2012-07-16 15:07:54 +1000
committerChris Johns <chrisj@rtems.org>2012-07-16 15:07:54 +1000
commit5d126da01db7c0e140ca35389dfe8f7227f10622 (patch)
treeec501af328f2fd23a4ae7cdd53991fb8743b831d /rtl-trace.h
parent8f06d01b2c6e051d9b6f733f6673b796490983f9 (diff)
Resolve unresolved externals when loading object files.
Object files that depend on each other will cause an unresolved external. The change lets object files load with unresolved externals and will resolve them when the object file with the external is loaded. A common table of symbol strings and relocation records is maintained. The symbol string is shared by each object file that is unresolved. Each relocation record that references the symbol is held. The table is a series of small blocks that compact as symbols are resolved. The number of symbols left unresolved is typically small this design avoids fragmentation of the heap memory.
Diffstat (limited to 'rtl-trace.h')
-rw-r--r--rtl-trace.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/rtl-trace.h b/rtl-trace.h
index 0dc96ab..fea8122 100644
--- a/rtl-trace.h
+++ b/rtl-trace.h
@@ -45,6 +45,7 @@ typedef uint32_t rtems_rtl_trace_mask;
#define RTEMS_RTL_TRACE_GLOBAL_SYM (1UL << 5)
#define RTEMS_RTL_TRACE_LOAD_SECT (1UL << 6)
#define RTEMS_RTL_TRACE_ALLOCATOR (1UL << 7)
+#define RTEMS_RTL_TRACE_UNRESOLVED (1UL << 8)
/**
* Call to check if this part is bring traced. If RTEMS_RTL_TRACE is defined to