return [check_weak_available]
}
+# Return 1 if VMA is equal to LMA for the .data section, 0
+# otherwise. Cache the result.
+
+proc check_effective_target_vma_equals_lma { } {
+ global tool
+
+ return [check_cached_effective_target vma_equals_lma {
+ set src vma_equals_lma[pid].c
+ set exe vma_equals_lma[pid].exe
+ verbose "check_effective_target_vma_equals_lma compiling testfile $src" 2
+ set f [open $src "w"]
+ puts $f "#ifdef __cplusplus\nextern \"C\"\n#endif\n"
+ puts $f "int foo = 42; void main() {}"
+ close $f
+ set lines [${tool}_target_compile $src $exe executable ""]
+ file delete $src
+
+ if [string match "" $lines] then {
+ # No error messages
+
+ set objdump_name [find_binutils_prog objdump]
+ set output [remote_exec host "$objdump_name" "--section-headers --section=.data $exe"]
+ set output [lindex $output 1]
+
+ remote_file build delete $exe
+
+ # Example output of objdump:
+ #vma_equals_lma9059.exe: file format elf32-littlearm
+ #
+ #Sections:
+ #Idx Name Size VMA LMA File off Algn
+ # 6 .data 00000558 20000000 08002658 00020000 2**3
+ # CONTENTS, ALLOC, LOAD, DATA
+
+ # Capture LMA and VMA columns for .data section
+ if ![ regexp {\d*\d+\s+\.data\s+\d+\s+(\d+)\s+(\d+)} $output dummy vma lma ] {
+ verbose "Could not parse objdump output" 2
+ return 0
+ } else {
+ return [string equal $vma $lma]
+ }
+ } else {
+ remote_file build delete $exe
+ verbose "Could not determine if VMA is equal to LMA. Assuming not equal." 2
+ return 0
+ }
+ }]
+}
+
# The "noinit" attribute is only supported by some targets.
# This proc returns 1 if it's supported, 0 if it's not.
projects / thirdparty / gcc.git / commitdiff
