more gdb on picocoin

script.txt

(gdb) break neteng_start
Breakpoint 9 at 0x100002294: file net.c, line 864.
(gdb) run netsync
Starting program: /Users/colin/Source/picocoin/src/picocoin netsync
Reading symbols for shared libraries . done

Breakpoint 9, neteng_start (neteng=0x10020f340) at net.c:864
864		if (neteng->running)
(gdb) s
867		if (pipe(neteng->rx_pipefd) < 0)
(gdb) s
869		if (pipe(neteng->tx_pipefd) < 0)
(gdb) s
872		neteng->child = fork();
(gdb) s
884		int par_read = neteng->par_read = neteng->rx_pipefd[0];
(gdb) s
885		int par_write = neteng->par_write = neteng->tx_pipefd[1];
(gdb) s
887		if (!neteng_cmd_exec(neteng->child, par_read, par_write, NC_START))
(gdb) s
neteng_cmd_exec [inlined] () at /Users/colin/Source/picocoin/src/net.c:853
853		sendcmd(write_fd, nc);
(gdb) s
sendcmd [inlined] () at net.c:853
885		int par_write = neteng->par_write = neteng->tx_pipefd[1];
(gdb) s
114		pipwr(fd, &v, 1);
(gdb) s
pipwr [inlined] () at /Users/colin/Source/picocoin/src/net.c:97
111	static void sendcmd(int fd, enum netcmds nc)
(gdb) s
97		while (len > 0) {
(gdb) break 101
Breakpoint 10 at 0x100001ddc: file net.c, line 101.
(gdb) s
0x0000000100008026 in dyld_stub_write ()
(gdb) c
Continuing.
failed to start engine

Program exited with code 01.
(gdb) break net.c:101
Note: breakpoint 10 also set at pc 0x100001ddc.
Breakpoint 11 at 0x100001ddc: file net.c, line 102.
Breakpoint 12 at 0x1000021f3: file net.c, line 102.
Breakpoint 13 at 0x100002245: file net.c, line 102.
Breakpoint 14 at 0x1000026c1: file net.c, line 102.
warning: Multiple breakpoints were set.
Use the "delete" command to delete unwanted breakpoints.
(gdb) run netsync
Starting program: /Users/colin/Source/picocoin/src/picocoin netsync
Reading symbols for shared libraries . done

Breakpoint 9, neteng_start (neteng=0x10020f340) at net.c:864
864		if (neteng->running)
(gdb) s
867		if (pipe(neteng->rx_pipefd) < 0)
(gdb) s
869		if (pipe(neteng->tx_pipefd) < 0)
(gdb) s
872		neteng->child = fork();
(gdb) s
884		int par_read = neteng->par_read = neteng->rx_pipefd[0];
(gdb) s
885		int par_write = neteng->par_write = neteng->tx_pipefd[1];
(gdb) s
887		if (!neteng_cmd_exec(neteng->child, par_read, par_write, NC_START))
(gdb) s
neteng_cmd_exec [inlined] () at /Users/colin/Source/picocoin/src/net.c:853
853		sendcmd(write_fd, nc);
(gdb) s
sendcmd [inlined] () at net.c:853
885		int par_write = neteng->par_write = neteng->tx_pipefd[1];
(gdb) s
114		pipwr(fd, &v, 1);
(gdb) s
pipwr [inlined] () at /Users/colin/Source/picocoin/src/net.c:97
111	static void sendcmd(int fd, enum netcmds nc)
(gdb) s
97		while (len > 0) {
(gdb) s
0x0000000100008026 in dyld_stub_write ()
(gdb) s
Single stepping until exit from function dyld_stub_write, 
which has no line number information.
failed to start engine

Program exited with code 01.
(gdb) break 100 
Breakpoint 15 at 0x100001de1: file net.c, line 100.
(gdb) run netsync
Starting program: /Users/colin/Source/picocoin/src/picocoin netsync
Reading symbols for shared libraries . done

Breakpoint 9, neteng_start (neteng=0x10020f340) at net.c:864
864		if (neteng->running)
(gdb) c
Continuing.
pipe poll: Interrupted system call
failed to start engine

Program exited with code 01.
(gdb) run netsync
Starting program: /Users/colin/Source/picocoin/src/picocoin netsync
Reading symbols for shared libraries . done

Breakpoint 9, neteng_start (neteng=0x10020f340) at net.c:864
864		if (neteng->running)
(gdb) s
867		if (pipe(neteng->rx_pipefd) < 0)
(gdb) s
869		if (pipe(neteng->tx_pipefd) < 0)
(gdb) s
872		neteng->child = fork();
(gdb) s
884		int par_read = neteng->par_read = neteng->rx_pipefd[0];
(gdb) s
885		int par_write = neteng->par_write = neteng->tx_pipefd[1];
(gdb) s
887		if (!neteng_cmd_exec(neteng->child, par_read, par_write, NC_START))
(gdb) s
neteng_cmd_exec [inlined] () at /Users/colin/Source/picocoin/src/net.c:853
853		sendcmd(write_fd, nc);
(gdb) s
sendcmd [inlined] () at net.c:853
885		int par_write = neteng->par_write = neteng->tx_pipefd[1];
(gdb) s
114		pipwr(fd, &v, 1);
(gdb) s
pipwr [inlined] () at /Users/colin/Source/picocoin/src/net.c:97
111	static void sendcmd(int fd, enum netcmds nc)
(gdb) s
97		while (len > 0) {
(gdb) s
0x0000000100008026 in dyld_stub_write ()
(gdb) s
Single stepping until exit from function dyld_stub_write, 
which has no line number information.
failed to start engine

Program exited with code 01.