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@@ -80,10 +80,18 @@ type sigset_t = array[0..3] of cardinal;
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PSigContextRec = ^SigContextRec;
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psigcontext = ^sigcontextrec;
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+{$ifdef cpui386}
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+ PFpuState = ^TFpuState;
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+{$endif def cpui386}
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+{$ifdef cpux86_64}
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+ PFpu64State = ^TFpu64State;
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+{$endif def cpux86_64}
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SigContextRec = record
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- sc_mask : sigset_t; { signal mask to restore }
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+{$ifdef cpui386}
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+(* sc_mask : sigset_t; { signal mask to restore }
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sc_onstack : longint; { sigstack state to restore }
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-
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+ I did not find those fields in OpenBSD
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+ /usr/iclude/i386/signal.h header *)
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sc_gs : longint; { machine state (struct trapframe): }
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sc_fs : longint;
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sc_es : longint;
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@@ -91,18 +99,55 @@ type sigset_t = array[0..3] of cardinal;
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sc_edi : longint;
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sc_esi : longint;
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sc_ebp : longint;
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- sc_isp : longint;
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sc_ebx : longint;
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sc_edx : longint;
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sc_ecx : longint;
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sc_eax : longint;
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- sc_trapno : longint;
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- sc_err : longint;
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sc_eip : longint;
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sc_cs : longint;
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sc_efl : longint;
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sc_esp : longint;
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sc_ss : longint;
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+ sc_onstack : longint;
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+ sc_mask : longint;
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+ sc_trapno : longint;
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+ sc_err : longint;
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+ sc_fpustate : pfpustate;
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+{$endif def cpui386}
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+{$ifdef cpux86_64}
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+ sc_rdi : clong;
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+ sc_rsi : clong;
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+ sc_rdx : clong;
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+ sc_rcx : clong;
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+ sc_r8 : clong;
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+ sc_r9 : clong;
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+ sc_r10 : clong;
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+ sc_r11 : clong;
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+ sc_r12 : clong;
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+ sc_r13 : clong;
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+ sc_r14 : clong;
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+ sc_r15 : clong;
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+ sc_rbp : clong;
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+ sc_rbx : clong;
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+ sc_rax : clong;
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+ sc_gs : clong;
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+ sc_fs : clong;
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+ sc_es : clong;
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+ sc_ds : clong;
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+ sc_trapno : clong;
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+ sc_err : clong;
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+ sc_rip : clong;
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+ sc_cs : clong;
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+ sc_rflags : clong;
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+ sc_rsp : clong;
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+ sc_ss : clong;
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+ sc_fpstate : PFpu64State;
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+ sc_onstack : cint;
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+ sc_mask : cint;
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+{$endif def cpux86_64}
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+ end;
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+{$ifdef cpui386}
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+ TFpuState = record
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{
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* XXX FPU state is 27 * 4 bytes h/w, 1 * 4 bytes s/w (probably not
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* needed here), or that + 16 * 4 bytes for emulators (probably all
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@@ -117,11 +162,92 @@ type sigset_t = array[0..3] of cardinal;
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en_foo : cardinal; { floating operand offset }
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en_fos : cardinal; { floating operand segment selector }
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fpr_acc : array[0..79] of char;
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- fpr_ex_sw : cardinal;
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+ fpr_ex_sw : cardinal; { status word of last exception }
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+ fpr_ex_tw : cardinal; { tag word of last exception }
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fpr_pad : array[0..63] of char;
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end;
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+{$endif def cpui386}
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+
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+(* From /usr/include/amd64/fpu.h header
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+/*
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+ * amd64 only uses the extended save/restore format used
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+ * by fxsave/fsrestore, to always deal with the SSE registers,
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+ * which are part of the ABI to pass floating point values.
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+ * Must be stored in memory on a 16-byte boundary.
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+ */
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+
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+struct fxsave64 {
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+ u_int16_t fx_fcw;
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+ u_int16_t fx_fsw;
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+ u_int8_t fx_ftw;
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+ u_int8_t fx_unused1;
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+ u_int16_t fx_fop;
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+ u_int64_t fx_rip;
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+ u_int64_t fx_rdp;
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+ u_int32_t fx_mxcsr;
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+ u_int32_t fx_mxcsr_mask;
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+ u_int64_t fx_st[8][2]; /* 8 normal FP regs */
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+ u_int64_t fx_xmm[16][2]; /* 16 SSE2 registers */
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+ u_int8_t fx_unused3[96];
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+} __packed;
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+
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+struct savefpu {
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+ struct fxsave64 fp_fxsave; /* see above */
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+ u_int16_t fp_ex_sw; /* saved status from last exception */
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+ u_int16_t fp_ex_tw; /* saved tag from last exception */
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+}; *)
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+{$ifdef cpux86_64}
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+ TFpu64State = packed record
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+ fx_fcw : cuint16;
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+ fx_fsw : cuint16;
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+ fx_ftw : cuint8;
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+ fx_unused1 : cuint8;
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+ fx_fop : cuint16;
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+ fx_rip : cuint64;
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+ fx_rdp : cuint64;
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+ fx_mxcsr : cuint32;
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+ fx_mxcsr_mask : cuint32;
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+ fx_st : array[0..7] of array [0..1] of cuint64;
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+ fx_xmm : array [0..15] of array [0..1] of cuint64;
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+ fx_unusued3 : array [0..95] of cuint8;
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+ end;
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+{$endif def cpux86_64}
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+(* From /usr/include/amd64/signal.h
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+ struct sigcontext {
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+ /* plain match trapframe */
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+ Sig64Context = Record
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+ long sc_rdi;
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+ long sc_rsi;
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+ long sc_rdx;
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+ long sc_rcx;
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+ long sc_r8;
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+ long sc_r9;
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+ long sc_r10;
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+ long sc_r11;
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+ long sc_r12;
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+ long sc_r13;
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+ long sc_r14;
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+ long sc_r15;
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+ long sc_rbp;
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+ long sc_rbx;
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+ long sc_rax;
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+ long sc_gs;
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+ long sc_fs;
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+ long sc_es;
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+ long sc_ds;
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+ long sc_trapno;
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+ long sc_err;
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+ long sc_rip;
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+ long sc_cs;
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+ long sc_rflags;
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+ long sc_rsp;
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+ long sc_ss;
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+ struct fxsave64 *sc_fpstate;
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+ int sc_onstack;
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+ int sc_mask;
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+}; *)
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Sigval = Record
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Case Boolean OF
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{ Members as suggested by Annex C of POSIX 1003.1b. }
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pierre