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authorMarti Bolivar <mbolivar@leaflabs.com>2011-09-07 00:51:23 -0400
committerMarti Bolivar <mbolivar@leaflabs.com>2011-09-07 23:34:23 -0400
commitcbf9ddff5b49ab838f9e03be5331ce14bae83b22 (patch)
tree726f87b038f0749318b1ce5265368eb5ba34b237 /libmaple
parent558b89afe973cde142c99d5fb58ffbc99e032e62 (diff)
downloadlibrambutan-cbf9ddff5b49ab838f9e03be5331ce14bae83b22.tar.gz
librambutan-cbf9ddff5b49ab838f9e03be5331ce14bae83b22.zip
syscalls.c: Remove fictitious uart_send() and broken comments.
uart_send() is not part of libmaple, and nm doesn't show it getting linked in from anywhere else, so I don't believe it exists. Remove it. Also remove some commented-out sections from getch(), putch(), _write(), and fgets(). These either reference uart_send() or use old libmaple APIs which no longer exist.
Diffstat (limited to 'libmaple')
-rw-r--r--libmaple/syscalls.c10
1 files changed, 0 insertions, 10 deletions
diff --git a/libmaple/syscalls.c b/libmaple/syscalls.c
index 2437228..ae80010 100644
--- a/libmaple/syscalls.c
+++ b/libmaple/syscalls.c
@@ -30,7 +30,6 @@
/* _end is set in the linker command file */
extern caddr_t _end;
-void uart_send(const char*str);
/*
* sbrk -- changes heap size size. Get nbytes more
@@ -50,7 +49,6 @@ caddr_t _sbrk(int nbytes) {
heap_ptr += nbytes;
return (base);
} else {
- uart_send("heap full!\r\n");
return ((caddr_t)-1);
}
}
@@ -81,8 +79,6 @@ int _lseek(int fd, off_t pos, int whence) {
}
unsigned char getch(void) {
-// while (!(USART2->SR & USART_FLAG_RXNE));
-// return USART2->DR;
return 0;
}
@@ -94,10 +90,6 @@ int _read(int fd, char *buf, size_t cnt) {
}
void putch(unsigned char c) {
-// if (c == '\n') putch('\r');
-
-// while (!(USART2->SR & USART_FLAG_TXE));
-// USART2->DR = c;
}
void cgets(char *s, int bufsize) {
@@ -142,7 +134,6 @@ void cgets(char *s, int bufsize) {
int _write(int fd, const char *buf, size_t cnt) {
int i;
-// uart_send("_write\r\n");
for (i = 0; i < cnt; i++)
putch(buf[i]);
@@ -152,7 +143,6 @@ int _write(int fd, const char *buf, size_t cnt) {
/* Override fgets() in newlib with a version that does line editing */
char *fgets(char *s, int bufsize, void *f) {
-// uart_send("fgets\r\n");
cgets(s, bufsize);
return s;
}