FreeCalypso > hg > freecalypso-tools
view target-utils/libcommon/cmd_jump.c @ 479:f2a040324509
Makefile hierarchy: CFLAGS override-ability actually works now
The original version was broken in that CFLAGS=${CFLAGS} passing was
done without quotes, which breaks as soon as there is a space in the
user-set CFLAGS. Changing it to CFLAGS="${CFLAGS}" makes it work
as originally intended.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 14 Feb 2019 04:59:23 +0000 |
parents | e7502631a0f9 |
children |
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/* * jump hexaddr -- transfer control with BX */ #include <sys/types.h> #include "types.h" void cmd_jump(argbulk) char *argbulk; { char *argv[2]; u_long addr; if (parse_args(argbulk, 1, 1, argv, 0) < 0) return; if (parse_hexarg(argv[0], 8, &addr) < 0) { printf("ERROR: argument must be a valid 32-bit hex address\n"); return; } serial_flush(); asm volatile ("bx %0" : : "r" (addr)); __builtin_unreachable(); }