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| author | Ulrich Drepper <drepper@redhat.com> | 2002-12-21 18:37:16 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2002-12-21 18:37:16 +0000 |
| commit | c025bbf60963f0d15ee845724a7d9004b5928b2b (patch) | |
| tree | e6672b93a3c10ef846a45942130f7dc99b2669ac /sysdeps | |
| parent | 5b52ee17534e37097660ef44ee351f191cf248ea (diff) | |
| download | glibc-c025bbf60963f0d15ee845724a7d9004b5928b2b.tar glibc-c025bbf60963f0d15ee845724a7d9004b5928b2b.tar.gz glibc-c025bbf60963f0d15ee845724a7d9004b5928b2b.tar.bz2 glibc-c025bbf60963f0d15ee845724a7d9004b5928b2b.zip | |
Elide compatibility cruft when new enough kernel is assumed.
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/unix/sysv/linux/arm/sigcontextinfo.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/arm/sigcontextinfo.h b/sysdeps/unix/sysv/linux/arm/sigcontextinfo.h index aebc3cfd52..30c2e3a6ce 100644 --- a/sysdeps/unix/sysv/linux/arm/sigcontextinfo.h +++ b/sysdeps/unix/sysv/linux/arm/sigcontextinfo.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1999 Free Software Foundation, Inc. +/* Copyright (C) 1999, 2002 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Philip Blundell <philb@gnu.org>, 1999. @@ -18,10 +18,22 @@ 02111-1307 USA. */ #include <bits/armsigctx.h> +#include "kernel-features.h" #define SIGCONTEXT int _a2, int _a3, int _a4, union k_sigcontext #define SIGCONTEXT_EXTRA_ARGS _a2, _a3, _a4, +/* The sigcontext structure changed between 2.0 and 2.1 kernels. On any + modern system we should be able to assume that the "new" format will be + in use. */ +#if __LINUX_KERNEL_VERSION > 131328 + +#define GET_PC(ctx) ((void *) ctx.v21.arm_pc) +#define GET_FRAME(ctx) ADVANCE_STACK_FRAME ((void *) ctx.v21.arm_fp) +#define GET_STACK(ctx) ((void *) ctx.v21.arm_sp) + +#else + #define GET_PC(ctx) ((void *)((ctx.v20.magic == SIGCONTEXT_2_0_MAGIC) ? \ ctx.v20.reg.ARM_pc : ctx.v21.arm_pc)) #define GET_FRAME(ctx) \ @@ -29,7 +41,11 @@ ctx.v20.reg.ARM_fp : ctx.v21.arm_fp)) #define GET_STACK(ctx) ((void *)((ctx.v20.magic == SIGCONTEXT_2_0_MAGIC) ? \ ctx.v20.reg.ARM_sp : ctx.v21.arm_sp)) + +#endif + #define ADVANCE_STACK_FRAME(frm) \ ((struct layout *)frm - 1) + #define CALL_SIGHANDLER(handler, signo, ctx) \ (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx)) |