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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/um/include/sysdep-ppc/ptrace.h | |
download | op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/um/include/sysdep-ppc/ptrace.h')
-rw-r--r-- | arch/um/include/sysdep-ppc/ptrace.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/arch/um/include/sysdep-ppc/ptrace.h b/arch/um/include/sysdep-ppc/ptrace.h new file mode 100644 index 0000000..8a27353 --- /dev/null +++ b/arch/um/include/sysdep-ppc/ptrace.h @@ -0,0 +1,104 @@ +/* + * Licensed under the GPL + */ + +#ifndef __SYS_PTRACE_PPC_H +#define __SYS_PTRACE_PPC_H + +#include "linux/config.h" +#include "linux/types.h" + +/* the following taken from <asm-ppc/ptrace.h> */ + +#ifdef CONFIG_PPC64 +#define PPC_REG unsigned long /*long*/ +#else +#define PPC_REG unsigned long +#endif +struct sys_pt_regs_s { + PPC_REG gpr[32]; + PPC_REG nip; + PPC_REG msr; + PPC_REG orig_gpr3; /* Used for restarting system calls */ + PPC_REG ctr; + PPC_REG link; + PPC_REG xer; + PPC_REG ccr; + PPC_REG mq; /* 601 only (not used at present) */ + /* Used on APUS to hold IPL value. */ + PPC_REG trap; /* Reason for being here */ + PPC_REG dar; /* Fault registers */ + PPC_REG dsisr; + PPC_REG result; /* Result of a system call */ +}; + +#define NUM_REGS (sizeof(struct sys_pt_regs_s) / sizeof(PPC_REG)) + +struct sys_pt_regs { + PPC_REG regs[sizeof(struct sys_pt_regs_s) / sizeof(PPC_REG)]; +}; + +#define UM_MAX_REG (PT_FPR0) +#define UM_MAX_REG_OFFSET (UM_MAX_REG * sizeof(PPC_REG)) + +#define EMPTY_REGS { { [ 0 ... NUM_REGS - 1] = 0 } } + +#define UM_REG(r, n) ((r)->regs[n]) + +#define UM_SYSCALL_RET(r) UM_REG(r, PT_R3) +#define UM_SP(r) UM_REG(r, PT_R1) +#define UM_IP(r) UM_REG(r, PT_NIP) +#define UM_ELF_ZERO(r) UM_REG(r, PT_FPSCR) +#define UM_SYSCALL_NR(r) UM_REG(r, PT_R0) +#define UM_SYSCALL_ARG1(r) UM_REG(r, PT_ORIG_R3) +#define UM_SYSCALL_ARG2(r) UM_REG(r, PT_R4) +#define UM_SYSCALL_ARG3(r) UM_REG(r, PT_R5) +#define UM_SYSCALL_ARG4(r) UM_REG(r, PT_R6) +#define UM_SYSCALL_ARG5(r) UM_REG(r, PT_R7) +#define UM_SYSCALL_ARG6(r) UM_REG(r, PT_R8) + +#define UM_SYSCALL_NR_OFFSET (PT_R0 * sizeof(PPC_REG)) +#define UM_SYSCALL_RET_OFFSET (PT_R3 * sizeof(PPC_REG)) +#define UM_SYSCALL_ARG1_OFFSET (PT_R3 * sizeof(PPC_REG)) +#define UM_SYSCALL_ARG2_OFFSET (PT_R4 * sizeof(PPC_REG)) +#define UM_SYSCALL_ARG3_OFFSET (PT_R5 * sizeof(PPC_REG)) +#define UM_SYSCALL_ARG4_OFFSET (PT_R6 * sizeof(PPC_REG)) +#define UM_SYSCALL_ARG5_OFFSET (PT_R7 * sizeof(PPC_REG)) +#define UM_SYSCALL_ARG6_OFFSET (PT_R8 * sizeof(PPC_REG)) +#define UM_SP_OFFSET (PT_R1 * sizeof(PPC_REG)) +#define UM_IP_OFFSET (PT_NIP * sizeof(PPC_REG)) +#define UM_ELF_ZERO_OFFSET (PT_R3 * sizeof(PPC_REG)) + +#define UM_SET_SYSCALL_RETURN(_regs, result) \ +do { \ + if (result < 0) { \ + (_regs)->regs[PT_CCR] |= 0x10000000; \ + UM_SYSCALL_RET((_regs)) = -result; \ + } else { \ + UM_SYSCALL_RET((_regs)) = result; \ + } \ +} while(0) + +extern void shove_aux_table(unsigned long sp); +#define UM_FIX_EXEC_STACK(sp) shove_aux_table(sp); + +/* These aren't actually defined. The undefs are just to make sure + * everyone's clear on the concept. + */ +#undef UML_HAVE_GETREGS +#undef UML_HAVE_GETFPREGS +#undef UML_HAVE_SETREGS +#undef UML_HAVE_SETFPREGS + +#endif + +/* + * Overrides for Emacs so that we follow Linus's tabbing style. + * Emacs will notice this stuff at the end of the file and automatically + * adjust the settings for this buffer only. This must remain at the end + * of the file. + * --------------------------------------------------------------------------- + * Local variables: + * c-file-style: "linux" + * End: + */ |