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466938cba9
by jhb. Special thanks to jhb for the amazing work on gdb! PR: 207972 Submitted by: luca.pizzamiglio@gmail.com (maintainer)
37 lines
1.4 KiB
C
37 lines
1.4 KiB
C
--- gdb/amd64bsd-nat.c.orig 2016-02-10 04:19:39.000000000 +0100
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+++ gdb/amd64bsd-nat.c 2016-03-04 11:17:58.581638025 +0100
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@@ -28,6 +28,7 @@
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#include <sys/types.h>
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#include <sys/ptrace.h>
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#include <machine/reg.h>
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+#include <machine/psl.h>
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#include "amd64-tdep.h"
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#include "amd64-nat.h"
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@@ -98,14 +99,25 @@
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if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
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{
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- struct reg regs;
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+ struct reg regs, oldregs;
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+ memset( ®s, 0, sizeof(struct reg));
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+ memset( &oldregs, 0, sizeof(struct reg));
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if (ptrace (PT_GETREGS, get_ptrace_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) ®s, 0) == -1)
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perror_with_name (_("Couldn't get registers"));
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+ ptrace (PT_GETREGS, get_ptrace_pid (inferior_ptid),
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+ (PTRACE_TYPE_ARG3) &oldregs, 0);
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amd64_collect_native_gregset (regcache, ®s, regnum);
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+ if( (regs.r_rflags ^ oldregs.r_rflags ) & ~PSL_USERCHANGE)
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+ {
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+ //printf("regs.r_rflags = 0x%8.8lX\n", regs.r_rflags );
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+ //printf("oldregs.r_rflags = 0x%8.8lX\n", oldregs.r_rflags );
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+ regs.r_rflags ^= (regs.r_rflags ^ oldregs.r_rflags ) & ~PSL_USERCHANGE;
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+ //printf(" allowed regs.r_rflags = 0x%8.8X\n", regs.r_rflags );
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+ }
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if (ptrace (PT_SETREGS, get_ptrace_pid (inferior_ptid),
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(PTRACE_TYPE_ARG3) ®s, 0) == -1)
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perror_with_name (_("Couldn't write registers"));
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