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authorGreg McGary <greg@mcgary.org>2000-06-27 01:20:02 +0000
committerGreg McGary <greg@mcgary.org>2000-06-27 01:20:02 +0000
commit58ff985dd485e6d2ae723f8568be24f37bac0bd2 (patch)
tree07f687f2ecc11542d90f7ab33e459171ecec1d1b
parent9bbc1eccb70d7748006fae2810de9906c689ad3b (diff)
downloadglibc-58ff985dd485e6d2ae723f8568be24f37bac0bd2.tar.gz
* Makeconfig: Add missing comment.
* csu/Makefile (extra-objs, omit-deps, install-lib): Add BP-flavored startup object. ($(objpfx)b$(start-installed-name)): New rule. * include/libc-symbols.h (symbol_set_declare): Change type of `__start_##set' and `__stop_##set' to pointer-to-function. (symbol_set_declare): Change type of `set' to array of pointer-to-function. * include/set-hooks.h (RUN_HOOK): Change type of `ptr' to pointer-to-function. * Makeconfig: Add missing comment. * csu/Makefile (extra-objs, omit-deps, install-lib): Add BP-flavored startup object. ($(objpfx)b$(start-installed-name)): New rule. * include/libc-symbols.h (symbol_set_declare): Change type of `__start_##set' and `__stop_##set' to pointer-to-function. (symbol_set_declare): Change type of `set' to array of pointer-to-function. * include/set-hooks.h (RUN_HOOK): Change type of `ptr' to pointer-to-function.
-rw-r--r--ChangeLog11
-rw-r--r--Makeconfig2
-rw-r--r--csu/Makefile9
-rw-r--r--include/libc-symbols.h6
-rw-r--r--include/set-hooks.h2
5 files changed, 23 insertions, 7 deletions
diff --git a/ChangeLog b/ChangeLog
index 80f9768471..0ce877f416 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,16 @@
2000-06-26 Greg McGary <greg@mcgary.org>
+ * Makeconfig: Add missing comment.
+ * csu/Makefile (extra-objs, omit-deps, install-lib): Add
+ BP-flavored startup object.
+ ($(objpfx)b$(start-installed-name)): New rule.
+ * include/libc-symbols.h (symbol_set_declare): Change type
+ of `__start_##set' and `__stop_##set' to pointer-to-function.
+ (symbol_set_declare): Change type of `set' to array of
+ pointer-to-function.
+ * include/set-hooks.h (RUN_HOOK): Change type of `ptr' to
+ pointer-to-function.
+
* string/bits/string2.h: Inhibit inlines if __BOUNDED_POINTERS__.
* sysdeps/unix/sysv/linux/syscalls.list: Add missing signatures.
diff --git a/Makeconfig b/Makeconfig
index f087137d1b..0395beee56 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -634,6 +634,8 @@ bppfx = BP-
ifeq (yes,$(build-bounded))
# Under --enable-bounded, we build the library with `-fbounded-pointers -g'
# to runtime bounds checking. The bounded-pointer objects are named foo.ob.
+# We disable sibling-call optimizations so that stack traces will be complete
+# and thus aid debugging, since after all, BPs are a debugging tool.
object-suffixes += .ob
CPPFLAGS-.ob = -fbounded-pointers $(pic-default)
CFLAGS-.ob = -g -O2 -fno-optimize-sibling-calls
diff --git a/csu/Makefile b/csu/Makefile
index 01a44cf22e..a50a44f676 100644
--- a/csu/Makefile
+++ b/csu/Makefile
@@ -30,11 +30,11 @@ subdir := csu
routines = init-first libc-start $(libc-init) sysdep version check_fds
csu-dummies = $(filter-out $(start-installed-name),crt1.o Mcrt1.o)
extra-objs = start.o gmon-start.o \
- $(start-installed-name) g$(start-installed-name) \
+ $(start-installed-name) g$(start-installed-name) b$(start-installed-name) \
$(csu-dummies)
omit-deps = $(patsubst %.o,%,$(start-installed-name) g$(start-installed-name) \
- $(csu-dummies))
-install-lib = $(start-installed-name) g$(start-installed-name) \
+ b$(start-installed-name) $(csu-dummies))
+install-lib = $(start-installed-name) g$(start-installed-name) b$(start-installed-name) \
$(csu-dummies)
distribute = initfini.c gmon-start.c start.c defs.awk munch.awk \
abi-note.S init.c munch-tmpl.c
@@ -130,6 +130,9 @@ ifeq (yes,$(elf))
$(objpfx)$(start-installed-name): $(objpfx)start.o $(objpfx)abi-note.o \
$(objpfx)init.o
$(link-relocatable)
+$(objpfx)b$(start-installed-name): $(objpfx)start.ob $(objpfx)abi-note.ob \
+ $(objpfx)init.ob
+ $(link-relocatable)
else
# The startfile is installed under different names, so we just call our
# source file `start.c' and copy to the installed name after compiling.
diff --git a/include/libc-symbols.h b/include/libc-symbols.h
index 1a3e1c8239..10232bfdd4 100644
--- a/include/libc-symbols.h
+++ b/include/libc-symbols.h
@@ -239,8 +239,8 @@
/* Declare SET for use in this module, if defined in another module. */
# define symbol_set_declare(set) \
- extern void *const __start_##set __attribute__ ((__weak__)); \
- extern void *const __stop_##set __attribute__ ((__weak__)); \
+ extern void (*const __start_##set) (void) __attribute__ ((__weak__)); \
+ extern void (*const __stop_##set) (void) __attribute__ ((__weak__)); \
weak_extern (__start_##set) weak_extern (__stop_##set)
/* Return a pointer (void *const *) to the first element of SET. */
@@ -258,7 +258,7 @@
asm(".stabs \"" __SYMBOL_PREFIX #set "\",25,0,0," __SYMBOL_PREFIX #symbol)
# define bss_set_element(set, symbol) ?error Must use initialized data.
# define symbol_set_define(set) void *const (set)[1];
-# define symbol_set_declare(set) extern void *const (set)[1];
+# define symbol_set_declare(set) extern void (*const (set)[1]) (void);
# define symbol_set_first_element(set) &(set)[1]
# define symbol_set_end_p(set, ptr) (*(ptr) == 0)
diff --git a/include/set-hooks.h b/include/set-hooks.h
index 1666485e50..f4d7246567 100644
--- a/include/set-hooks.h
+++ b/include/set-hooks.h
@@ -42,7 +42,7 @@
# define RUN_HOOK(NAME, ARGS) \
do { \
- void *const *ptr; \
+ void (*const *ptr) (void); \
for (ptr = symbol_set_first_element (NAME); \
! symbol_set_end_p (NAME, ptr); ++ptr) \
(*(__##NAME##_hook_function_t *) *ptr) ARGS; \