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| author | Stefan Hajnoczi | 2008-06-13 21:11:41 +0200 |
|---|---|---|
| committer | Michael Brown | 2008-06-30 20:19:48 +0200 |
| commit | fe79edfc3d95ec5aa86248f11eba1fd37c073533 (patch) | |
| tree | c0e329c328525e92dfa1fad413c9cac0204f2acb /src/arch/i386/core/gdbmach.c | |
| parent | [GDB] UDP clean up and add netdev refcnt (diff) | |
| download | ipxe-fe79edfc3d95ec5aa86248f11eba1fd37c073533.tar.gz ipxe-fe79edfc3d95ec5aa86248f11eba1fd37c073533.tar.xz ipxe-fe79edfc3d95ec5aa86248f11eba1fd37c073533.zip | |
[GDB] Remove unused DR6 debug register variable
Diffstat (limited to 'src/arch/i386/core/gdbmach.c')
| -rw-r--r-- | src/arch/i386/core/gdbmach.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/arch/i386/core/gdbmach.c b/src/arch/i386/core/gdbmach.c index e4aa2d2d..26fab609 100644 --- a/src/arch/i386/core/gdbmach.c +++ b/src/arch/i386/core/gdbmach.c @@ -44,7 +44,6 @@ struct hwbp { static struct hwbp hwbps [ 4 ]; static gdbreg_t dr7 = DR7_CLEAR; -static gdbreg_t dr6; static struct hwbp *gdbmach_find_hwbp ( int type, unsigned long addr, size_t len ) { struct hwbp *available = NULL; @@ -131,14 +130,14 @@ int gdbmach_set_breakpoint ( int type, unsigned long addr, size_t len, int enabl } static void gdbmach_disable_hwbps ( void ) { - /* Store and clear breakpoint status register */ - __asm__ __volatile__ ( "movl %%dr6, %0\n" "movl %1, %%dr6\n" : "=r" ( dr6 ) : "r" ( DR6_CLEAR ) ); - /* Store and clear hardware breakpoints */ __asm__ __volatile__ ( "movl %0, %%dr7\n" : : "r" ( DR7_CLEAR ) ); } static void gdbmach_enable_hwbps ( void ) { + /* Clear breakpoint status register */ + __asm__ __volatile__ ( "movl %0, %%dr6\n" : : "r" ( DR6_CLEAR ) ); + /* Restore hardware breakpoints */ __asm__ __volatile__ ( "movl %0, %%dr7\n" : : "r" ( dr7 ) ); } |