From 29c4dfd92edc26c2cd2c0c64c9201d5b91d6418e Mon Sep 17 00:00:00 2001 From: Chris Zankel Date: Thu, 31 May 2007 17:49:32 -0700 Subject: [XTENSA] Remove non-rt signal handling The non-rt signal handling was never really used, so we don't break anything. This patch also cleans up the signal stack-frame to make it independent from the processor configuration. It also improves the method used for controlling single-stepping. We now save and restore the 'icountlevel' register that controls single stepping and set or clear the saved state to enable or disable it. Signed-off-by: Chris Zankel --- include/asm-xtensa/coprocessor.h | 8 ++++++-- include/asm-xtensa/elf.h | 3 +-- include/asm-xtensa/ptrace.h | 3 ++- include/asm-xtensa/sigcontext.h | 24 +++++------------------- include/asm-xtensa/unistd.h | 4 ++-- 5 files changed, 16 insertions(+), 26 deletions(-) (limited to 'include/asm-xtensa') diff --git a/include/asm-xtensa/coprocessor.h b/include/asm-xtensa/coprocessor.h index bd09ec0..aa21210 100644 --- a/include/asm-xtensa/coprocessor.h +++ b/include/asm-xtensa/coprocessor.h @@ -64,6 +64,7 @@ typedef struct { # define COPROCESSOR_INFO_SIZE 8 # endif #endif +#endif /* XCHAL_HAVE_CP */ #ifndef __ASSEMBLY__ @@ -74,8 +75,11 @@ extern void save_coprocessor_registers(void*, int); # else # define release_coprocessors(task) # endif -#endif -#endif +typedef unsigned char cp_state_t[XTENSA_CP_EXTRA_SIZE] + __attribute__ ((aligned (XTENSA_CP_EXTRA_ALIGN))); + +#endif /* !__ASSEMBLY__ */ + #endif /* _XTENSA_COPROCESSOR_H */ diff --git a/include/asm-xtensa/elf.h b/include/asm-xtensa/elf.h index f0f9fd8..1569b53 100644 --- a/include/asm-xtensa/elf.h +++ b/include/asm-xtensa/elf.h @@ -13,7 +13,6 @@ #ifndef _XTENSA_ELF_H #define _XTENSA_ELF_H -#include #include /* Xtensa processor ELF architecture-magic number */ @@ -49,7 +48,7 @@ typedef struct { elf_greg_t lcount; elf_greg_t sar; elf_greg_t syscall; - elf_greg_t ar[XCHAL_NUM_AREGS]; + elf_greg_t ar[64]; } xtensa_gregset_t; #define ELF_NGREG (sizeof(xtensa_gregset_t) / sizeof(elf_greg_t)) diff --git a/include/asm-xtensa/ptrace.h b/include/asm-xtensa/ptrace.h index cad83e8..77ff02d 100644 --- a/include/asm-xtensa/ptrace.h +++ b/include/asm-xtensa/ptrace.h @@ -99,7 +99,8 @@ struct pt_regs { unsigned long windowbase; /* 48 */ unsigned long windowstart; /* 52 */ unsigned long syscall; /* 56 */ - int reserved[2]; /* 64 */ + unsigned long icountlevel; /* 60 */ + int reserved[1]; /* 64 */ /* Make sure the areg field is 16 bytes aligned. */ int align[0] __attribute__ ((aligned(16))); diff --git a/include/asm-xtensa/sigcontext.h b/include/asm-xtensa/sigcontext.h index a751772..e3381ce 100644 --- a/include/asm-xtensa/sigcontext.h +++ b/include/asm-xtensa/sigcontext.h @@ -5,21 +5,12 @@ * License. See the file "COPYING" in the main directory of this archive * for more details. * - * Copyright (C) 2001 - 2003 Tensilica Inc. + * Copyright (C) 2001 - 2007 Tensilica Inc. */ #ifndef _XTENSA_SIGCONTEXT_H #define _XTENSA_SIGCONTEXT_H -#define _ASMLANGUAGE -#include -#include - - -struct _cpstate { - unsigned char _cpstate[XTENSA_CP_EXTRA_SIZE]; -} __attribute__ ((aligned (XTENSA_CP_EXTRA_ALIGN))); - struct sigcontext { unsigned long oldmask; @@ -27,18 +18,13 @@ struct sigcontext { /* CPU registers */ unsigned long sc_pc; unsigned long sc_ps; - unsigned long sc_wmask; - unsigned long sc_windowbase; - unsigned long sc_windowstart; unsigned long sc_lbeg; unsigned long sc_lend; unsigned long sc_lcount; unsigned long sc_sar; - unsigned long sc_depc; - unsigned long sc_dareg0; - unsigned long sc_treg[4]; - unsigned long sc_areg[XCHAL_NUM_AREGS]; - struct _cpstate *sc_cpstate; + unsigned long sc_acclo; + unsigned long sc_acchi; + unsigned long sc_a[16]; }; -#endif /* __ASM_XTENSA_SIGCONTEXT_H */ +#endif /* _XTENSA_SIGCONTEXT_H */ diff --git a/include/asm-xtensa/unistd.h b/include/asm-xtensa/unistd.h index 8a7fb69..9bd3402 100644 --- a/include/asm-xtensa/unistd.h +++ b/include/asm-xtensa/unistd.h @@ -485,8 +485,8 @@ __SYSCALL(217, sys_sched_get_priority_min, 1) __SYSCALL(218, sys_sched_rr_get_interval, 2) #define __NR_sched_yield 219 __SYSCALL(219, sys_sched_yield, 0) -#define __NR_sigreturn 222 -__SYSCALL(222, xtensa_sigreturn, 0) +#define __NR_available222 222 +__SYSCALL(222, sys_ni_syscall, 0) /* Signal Handling */ -- cgit v1.1