From 6eb69eab2909778dc96bdb5dbb83d7756bee4601 Mon Sep 17 00:00:00 2001 From: Richard Earnshaw Date: Wed, 30 Jan 2002 16:35:51 +0000 Subject: [PATCH] * arm-tdep.c (arm_call_dummy_words): Define. * arm-linux-tdep.c (arm_linux_call_dummy_words): Define. * config/arm/tm-arm.h (CALL_DUMMY_P): Define. (CALL_DUMMY_WORDS): Define. (arm_call_dummy_words): Declare. * config/arm/tm-linux.h (CALL_DUMMY_WORDS): Define. (arm_linux_call_dummy_words): Declare. --- gdb/ChangeLog | 10 ++++++++++ gdb/arm-linux-tdep.c | 14 ++++++++++++++ gdb/arm-tdep.c | 14 ++++++++++++++ gdb/config/arm/tm-arm.h | 10 ++++------ gdb/config/arm/tm-linux.h | 14 +++----------- 5 files changed, 45 insertions(+), 17 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 83b3900f61c..fadb65de5d4 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,13 @@ +2002-01-30 Richard Earnshaw + + * arm-tdep.c (arm_call_dummy_words): Define. + * arm-linux-tdep.c (arm_linux_call_dummy_words): Define. + * config/arm/tm-arm.h (CALL_DUMMY_P): Define. + (CALL_DUMMY_WORDS): Define. + (arm_call_dummy_words): Declare. + * config/arm/tm-linux.h (CALL_DUMMY_WORDS): Define. + (arm_linux_call_dummy_words): Declare. + 2002-01-30 Andreas Schwab * m68klinux-nat.c: Fix last change to use regcache_collect diff --git a/gdb/arm-linux-tdep.c b/gdb/arm-linux-tdep.c index 65227302146..ff896d95c40 100644 --- a/gdb/arm-linux-tdep.c +++ b/gdb/arm-linux-tdep.c @@ -33,6 +33,20 @@ #include "symfile.h" #include "objfiles.h" +/* CALL_DUMMY_WORDS: + This sequence of words is the instructions + + mov lr, pc + mov pc, r4 + swi bkpt_swi + + Note this is 12 bytes. */ + +LONGEST arm_linux_call_dummy_words[] = +{ + 0xe1a0e00f, 0xe1a0f004, 0xef9f001 +}; + #ifdef GET_LONGJMP_TARGET /* Figure out where the longjmp will land. We expect that we have diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c index 15ae2d35283..8fdb1e57e20 100644 --- a/gdb/arm-tdep.c +++ b/gdb/arm-tdep.c @@ -1249,6 +1249,20 @@ arm_push_dummy_frame (void) write_register (SP_REGNUM, sp); } +/* CALL_DUMMY_WORDS: + This sequence of words is the instructions + + mov lr,pc + mov pc,r4 + illegal + + Note this is 12 bytes. */ + +LONGEST arm_call_dummy_words[] = +{ + 0xe1a0e00f, 0xe1a0f004, 0xe7ffdefe +}; + /* Fix up the call dummy, based on whether the processor is currently in Thumb or ARM mode, and whether the target function is Thumb or ARM. There are three different situations requiring three diff --git a/gdb/config/arm/tm-arm.h b/gdb/config/arm/tm-arm.h index 7316f92e300..941af9106e1 100644 --- a/gdb/config/arm/tm-arm.h +++ b/gdb/config/arm/tm-arm.h @@ -406,15 +406,13 @@ void arm_pop_frame (void); #define POP_FRAME arm_pop_frame () -/* This sequence of words is the instructions +#define CALL_DUMMY_P (1) - mov lr,pc - mov pc,r4 - illegal +#define CALL_DUMMY_WORDS arm_call_dummy_words +extern LONGEST arm_call_dummy_words[]; - Note this is 12 bytes. */ +#define SIZEOF_CALL_DUMMY_WORDS (3 * sizeof (LONGEST)) -#define CALL_DUMMY {0xe1a0e00f, 0xe1a0f004, 0xe7ffdefe} #define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy */ #define CALL_DUMMY_BREAKPOINT_OFFSET arm_call_dummy_breakpoint_offset() diff --git a/gdb/config/arm/tm-linux.h b/gdb/config/arm/tm-linux.h index 51036b66366..c815c4849cc 100644 --- a/gdb/config/arm/tm-linux.h +++ b/gdb/config/arm/tm-linux.h @@ -44,17 +44,9 @@ extern struct link_map_offsets *arm_linux_svr4_fetch_link_map_offsets (void); #undef ARM_LE_BREAKPOINT #define ARM_LE_BREAKPOINT {0x01,0x00,0x9f,0xef} -/* This sequence of words used in the CALL_DUMMY are the following - instructions: - - mov lr, pc - mov pc, r4 - swi bkpt_swi - - Note this is 12 bytes. */ - -#undef CALL_DUMMY -#define CALL_DUMMY {0xe1a0e00f, 0xe1a0f004, 0xef9f001} +#undef CALL_DUMMY_WORDS +#define CALL_DUMMY_WORDS arm_linux_call_dummy_words +extern LONGEST arm_linux_call_dummy_words[]; /* Extract from an array REGBUF containing the (raw) register state a function return value of type TYPE, and copy that, in virtual format, -- 2.30.2