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| author | Jan Kratochvil <jan.kratochvil@redhat.com> | 2012-02-29 14:59:40 +0000 |
|---|---|---|
| committer | Jan Kratochvil <jan.kratochvil@redhat.com> | 2012-02-29 14:59:40 +0000 |
| commit | c5a7f72d9b9da7b13373bfe2090e70e85e6e0d3a (patch) | |
| tree | 4a1a5b8489526d6e9bbbe16ed44010c757665f10 /gdb/i386-tdep.c | |
| parent | 380281ab3fa3d6724a92fb5ccbdcef7ac09616c8 (diff) | |
| download | gdb-c5a7f72d9b9da7b13373bfe2090e70e85e6e0d3a.tar.gz | |
gdb/
Fix disp-step-syscall.exp: fork: single step over fork.
* i386-linux-tdep.c (-i386_linux_get_syscall_number): Rename to ...
(i386_linux_get_syscall_number_from_regcache): ... here, new function
comment, change parameters gdbarch and ptid to regcache. Remove
parameter regcache, initialize gdbarch from regcache here.
(i386_linux_get_syscall_number, i386_linux_displaced_step_copy_insn):
New functions.
(i386_linux_init_abi): Install i386_linux_displaced_step_copy_insn
instead.
* i386-tdep.c (i386_syscall_p): Check also for 'sysenter' and
'syscall'. Make the 'int' check more strict.
gdb/testsuite/
Fix disp-step-syscall.exp: fork: single step over fork.
* gdb.base/disp-step-syscall.exp (syscall_insn): Anchor it by
whitespaces.
(single step over $syscall): Remove its check.
(single step over $syscall final pc): New check.
Diffstat (limited to 'gdb/i386-tdep.c')
| -rw-r--r-- | gdb/i386-tdep.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c index 56e375e2982..d18aa9945da 100644 --- a/gdb/i386-tdep.c +++ b/gdb/i386-tdep.c @@ -521,7 +521,12 @@ i386_call_p (const gdb_byte *insn) static int i386_syscall_p (const gdb_byte *insn, int *lengthp) { - if (insn[0] == 0xcd) + /* Is it 'int $0x80'? */ + if ((insn[0] == 0xcd && insn[1] == 0x80) + /* Or is it 'sysenter'? */ + || (insn[0] == 0x0f && insn[1] == 0x34) + /* Or is it 'syscall'? */ + || (insn[0] == 0x0f && insn[1] == 0x05)) { *lengthp = 2; return 1; |