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authorTom Tromey <tromey@adacore.com>2019-04-24 06:50:01 -0600
committerTom Tromey <tromey@adacore.com>2019-04-25 12:59:35 -0600
commit680d7fd5fcff860a31021845389d4dfeb7b42e3c (patch)
tree0065f8d560b3148a3a3dceb5e3e34ab724cc7cba /gdb/bfin-tdep.h
parentc6fdd8b2052baa9b7a27d4d34f109c9622b53509 (diff)
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Avoid undefined behavior in Guile exception handling
The Guile code will longjmp (via scm_throw) when an object requiring destruction is on the stack. This is undefined behavior. This changes this code to run any destructors in inner scopes, and to pass a POD to gdbscm_throw_gdb_exception. gdb/ChangeLog 2019-04-25 Tom Tromey <tromey@adacore.com> * guile/scm-exception.c (gdbscm_scm_from_gdb_exception) (gdbscm_throw_gdb_exception): Take a gdbscm_gdb_exception. * guile/scm-block.c, guile/scm-breakpoint.c, guile/scm-cmd.c, guile/scm-disasm.c, guile/scm-frame.c, guile/scm-lazy-string.c, guile/scm-math.c, guile/scm-param.c, guile/scm-ports.c, guile/scm-symbol.c, guile/scm-symtab.c, guile/scm-type.c, guile/scm-value.c: Use unpack. * guile/guile-internal.h (gdbscm_scm_from_gdb_exception): Take a gdbscm_gdb_exception. (gdbscm_throw_gdb_exception): Likewise. (struct gdbscm_gdb_exception): New. (unpack): New function. (gdbscm_wrap): Use unpack.
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