http://sourceware.org/bugzilla/show_bug.cgi?id=15217
Bug #: 15217
Summary: branch-to-arm-from-thumb for typeless symbol is
missing a stub
Product: binutils
Version: 2.24 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: ld
AssignedTo: unassig...@sourceware.org
ReportedBy: h...@sourceware.org
Classification: Unclassified
Target: arm-unknown-linux-gnueabi
Created attachment 6908
--> http://sourceware.org/bugzilla/attachment.cgi?id=6908
test-case
See the run_dump_test test-case patch in the attachment. Note that the
type-specifiers for the symbol types are commented out; the code is derived
from mixed-lib.s but with function names swapped, calling arm from thumb and
thumb from arm. The call from app_tfunc (in thumb mode) to lib_func2 (in arm
mode) doesn't get a stub with "todays" sources. The expected test-case output
is observed by adding back the type specifiers causing a proper thumb-to-arm
stub being generated with the test passing.
The real-world code is somewhat sloppy hand-written assembly-code; no symbol
decorations, just .global where necessary, but which worked with a toolchain
using pre-2.19 binutils.
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