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authorJeff Johnston <jjohnstn@redhat.com>2002-09-10 00:46:45 +0000
committerJeff Johnston <jjohnstn@redhat.com>2002-09-10 00:46:45 +0000
commitbe83844e4cf998dc60411c6802635caf7e8d94e7 (patch)
tree61d1f3ec219966205068876cb6a97c9920dfc636
parent9c64d2a7ba6feb196099ee8b65bba163191008c0 (diff)
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2002-09-09 Jeff Johnston <jjohnstn@redhat.com>
* libc/sys/linux/machine/i386/crt0.c (_start): Remove code that clears the .bss section.
-rw-r--r--newlib/ChangeLog5
-rw-r--r--newlib/libc/sys/linux/machine/i386/crt0.c8
2 files changed, 11 insertions, 2 deletions
diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index de3e80e..a0e0627 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,5 +1,10 @@
2002-09-09 Jeff Johnston <jjohnstn@redhat.com>
+ * libc/sys/linux/machine/i386/crt0.c (_start): Remove
+ code that clears the .bss section.
+
+2002-09-09 Jeff Johnston <jjohnstn@redhat.com>
+
* libc/include/sys/_types.h (_mbstate_t): Changed to use
unsigned char internally.
* libc/sys/linux/sys/_types.h: Ditto.
diff --git a/newlib/libc/sys/linux/machine/i386/crt0.c b/newlib/libc/sys/linux/machine/i386/crt0.c
index 84ea043..4364f61 100644
--- a/newlib/libc/sys/linux/machine/i386/crt0.c
+++ b/newlib/libc/sys/linux/machine/i386/crt0.c
@@ -33,8 +33,12 @@ void _start(int args)
environ = argv+argc+1;
- /* clear bss */
- memset(&__bss_start,0,(&_end - &__bss_start));
+ /* Note: do not clear the .bss section. When running with shared
+ * libraries, certain data items such __mb_cur_max or environ
+ * may get placed in the .bss, even though they are initialized
+ * to non-zero values. Clearing the .bss will end up zeroing
+ * out their initial values. The .bss is already initialized
+ * by this time by Linux. */
tzset(); /* initialize timezone info */
exit(main(argc,argv,environ));