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Fri Sep 1 16:16:12 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>

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* libc-symbols.h (link_warning): Take new first arg SYMBOL; ask
	for a warning on references to that specific symbol, not the
	entire containing object file.
	(stub_warning): Pass symbol name to link_warning.
	* stdio/gets.c: Pass function name in link_warning invocation.

	* hurd/intr-msg.c: Treat apparent EINTR return from msg trap like
	MACH_SEND_INTERRUPTED.  That indicates interrupt_operation was
	sent, but failed.

	* stdlib/msort.c: Include memcopy.h.
	(msort_with_tmp): If operating on aligned op_t words, use direct word
	fetches and stores.

	* sysdeps/i386/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC): Add
	missing backslash.
This commit is contained in:
Roland McGrath
1995-09-01 22:25:08 +00:00
parent e3726b056b
commit 44c8d1a2a8
9 changed files with 106 additions and 56 deletions
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20
libc-symbols.h
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@@ -155,27 +155,27 @@ Cambridge, MA 02139, USA. */
/* When the file using this macro is linked in, the linker
will emit a warning message MSG. */
/* When a reference to SYMBOL is encountered, the linker will emit a
warning message MSG. */
#ifdef HAVE_GNU_LD
#ifdef HAVE_ELF
#define link_warning(msg) \
static const char __evoke_link_warning__[] \
__attribute__ ((section (".gnu.warning"))) = msg;
#define link_warning(symbol, msg) \
static const char __evoke_link_warning_##symbol[] \
__attribute__ ((section (".gnu.warning." #symbol))) = msg;
#else
#define link_warning(msg) \
#define link_warning(symbol, msg) \
asm(".stabs \"" msg "\",30,0,0,0\n" \
".stabs \"__evoke_link_warning__\",1,0,0,0\n"\
".stabs \"__evoke_link_warning__\",2,0,0,0\n");
".stabs \"" __SYMBOL_PREFIX #symbol "\",1,0,0,0\n");
#endif
#else
/* We will never be heard; they will all die horribly. */
#define link_warning(msg)
#define link_warning(symbol, msg)
#endif
/* A canned warning for sysdeps/stub functions. */
#define stub_warning(name) \
link_warning ("warning: " #name " is not implemented and will always fail")
link_warning (name, \
"warning: " #name " is not implemented and will always fail")
/*