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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-05-31 22:16:38 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-05-31 22:16:38 +0000
commitfad2b86c9e7eaadb973b50a1bc0e2accc1a96cfd (patch)
treef2d3fe127fb6c3c1d3b919631de6e6ed7cbc1791 /applets
parentc2f011aa031b8598422953d5e9a93ca008ad0867 (diff)
downloadbusybox-fad2b86c9e7eaadb973b50a1bc0e2accc1a96cfd.tar.gz
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use "glibc errno" trick not only for ash, but for entire busybox
(add/remove: 1/1 grow/shrink: 37/37 up/down: 139/-228) Total: -89 bytes
Diffstat (limited to 'applets')
-rw-r--r--applets/applets.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/applets/applets.c b/applets/applets.c
index e905ebec4..bd3704394 100644
--- a/applets/applets.c
+++ b/applets/applets.c
@@ -641,10 +641,19 @@ void run_applet_and_exit(const char *name, char **argv)
}
+#ifdef __GLIBC__
+/* Make it reside in R/W memory: */
+int *const bb_errno __attribute__ ((section (".data")));
+#endif
+
int main(int argc, char **argv)
{
const char *s;
+#ifdef __GLIBC__
+ (*(int **)&bb_errno) = __errno_location();
+#endif
+
#if !BB_MMU
/* NOMMU re-exec trick sets high-order bit in first byte of name */
if (argv[0][0] & 0x80) {