diff options
Diffstat (limited to 'src/target')
| -rw-r--r-- | src/target/arm11.c | 41 | ||||
| -rw-r--r-- | src/target/armv4_5.c | 45 | ||||
| -rw-r--r-- | src/target/armv4_5.h | 2 | ||||
| -rw-r--r-- | src/target/armv7a.c | 15 | ||||
| -rw-r--r-- | src/target/armv7m.c | 37 | ||||
| -rw-r--r-- | src/target/armv7m.h | 1 | ||||
| -rw-r--r-- | src/target/cortex_m3.c | 3 | ||||
| -rw-r--r-- | src/target/cortex_m3.h | 1 |
8 files changed, 39 insertions, 106 deletions
diff --git a/src/target/arm11.c b/src/target/arm11.c index 65e07809..5e732758 100644 --- a/src/target/arm11.c +++ b/src/target/arm11.c @@ -246,36 +246,6 @@ enum arm11_regcache_ids #define ARM11_GDB_REGISTER_COUNT 26 -/* FIXME these are *identical* to the ARMv4_5 dummies ... except - * for their names, and being static vs global, and having different - * addresses. Ditto ARMv7a and ARMv7m dummies. - */ - -static uint8_t arm11_gdb_dummy_fp_value[12]; - -static struct reg arm11_gdb_dummy_fp_reg = -{ - .name = "GDB dummy floating-point register", - .value = arm11_gdb_dummy_fp_value, - .dirty = 0, - .valid = 1, - .size = 96, - .arch_info = NULL, -}; - -static uint8_t arm11_gdb_dummy_fps_value[4]; - -static struct reg arm11_gdb_dummy_fps_reg = -{ - .name = "GDB dummy floating-point status register", - .value = arm11_gdb_dummy_fps_value, - .dirty = 0, - .valid = 1, - .size = 32, - .arch_info = NULL, -}; - - static int arm11_on_enter_debug_state(struct arm11_common *arm11); static int arm11_step(struct target *target, int current, uint32_t address, int handle_breakpoints); @@ -1265,12 +1235,10 @@ static int arm11_get_gdb_reg_list(struct target *target, *reg_list_size = ARM11_GDB_REGISTER_COUNT; *reg_list = malloc(sizeof(struct reg*) * ARM11_GDB_REGISTER_COUNT); + /* nine unused legacy FPA registers are expected by GDB */ for (size_t i = 16; i < 24; i++) - { - (*reg_list)[i] = &arm11_gdb_dummy_fp_reg; - } - - (*reg_list)[24] = &arm11_gdb_dummy_fps_reg; + (*reg_list)[i] = &arm_gdb_dummy_fp_reg; + (*reg_list)[24] = &arm_gdb_dummy_fps_reg; for (size_t i = 0; i < ARM11_REGCACHE_COUNT; i++) { @@ -1954,9 +1922,6 @@ static int arm11_build_reg_cache(struct target *target) NEW(struct reg, reg_list, ARM11_REGCACHE_COUNT); NEW(struct arm11_reg_state, arm11_reg_states, ARM11_REGCACHE_COUNT); - register_init_dummy(&arm11_gdb_dummy_fp_reg); - register_init_dummy(&arm11_gdb_dummy_fps_reg); - arm11->reg_list = reg_list; /* Build the process context cache */ diff --git a/src/target/armv4_5.c b/src/target/armv4_5.c index 6f8d14cd..aba44319 100644 --- a/src/target/armv4_5.c +++ b/src/target/armv4_5.c @@ -189,30 +189,44 @@ int armv4_5_core_reg_map[7][17] = } }; -uint8_t armv4_5_gdb_dummy_fp_value[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; +static const uint8_t arm_gdb_dummy_fp_value[12]; -struct reg armv4_5_gdb_dummy_fp_reg = +/** + * Dummy FPA registers are required to support GDB on ARM. + * Register packets require eight obsolete FPA register values. + * Modern ARM cores use Vector Floating Point (VFP), if they + * have any floating point support. VFP is not FPA-compatible. + */ +struct reg arm_gdb_dummy_fp_reg = { - .name = "GDB dummy floating-point register", - .value = armv4_5_gdb_dummy_fp_value, - .dirty = 0, + .name = "GDB dummy FPA register", + .value = (uint8_t *) arm_gdb_dummy_fp_value, .valid = 1, .size = 96, - .arch_info = NULL, }; -uint8_t armv4_5_gdb_dummy_fps_value[] = {0, 0, 0, 0}; +static const uint8_t arm_gdb_dummy_fps_value[4]; -struct reg armv4_5_gdb_dummy_fps_reg = +/** + * Dummy FPA status registers are required to support GDB on ARM. + * Register packets require an obsolete FPA status register. + */ +struct reg arm_gdb_dummy_fps_reg = { - .name = "GDB dummy floating-point status register", - .value = armv4_5_gdb_dummy_fps_value, - .dirty = 0, + .name = "GDB dummy FPA status register", + .value = (uint8_t *) arm_gdb_dummy_fps_value, .valid = 1, .size = 32, - .arch_info = NULL, }; +static void arm_gdb_dummy_init(void) __attribute__ ((constructor)); + +static void arm_gdb_dummy_init(void) +{ + register_init_dummy(&arm_gdb_dummy_fp_reg); + register_init_dummy(&arm_gdb_dummy_fps_reg); +} + int armv4_5_get_core_reg(struct reg *reg) { int retval; @@ -313,9 +327,6 @@ struct reg_cache* armv4_5_build_reg_cache(struct target *target, struct arm *arm cache->reg_list = reg_list; cache->num_regs = num_regs; - register_init_dummy(&armv4_5_gdb_dummy_fp_reg); - register_init_dummy(&armv4_5_gdb_dummy_fps_reg); - for (i = 0; i < 37; i++) { arch_info[i] = armv4_5_core_reg_list_arch_info[i]; @@ -550,10 +561,10 @@ int armv4_5_get_gdb_reg_list(struct target *target, struct reg **reg_list[], int for (i = 16; i < 24; i++) { - (*reg_list)[i] = &armv4_5_gdb_dummy_fp_reg; + (*reg_list)[i] = &arm_gdb_dummy_fp_reg; } - (*reg_list)[24] = &armv4_5_gdb_dummy_fps_reg; + (*reg_list)[24] = &arm_gdb_dummy_fps_reg; (*reg_list)[25] = &armv4_5->core_cache->reg_list[ARMV4_5_CPSR]; return ERROR_OK; diff --git a/src/target/armv4_5.h b/src/target/armv4_5.h index 5fef0942..d126f964 100644 --- a/src/target/armv4_5.h +++ b/src/target/armv4_5.h @@ -158,6 +158,8 @@ int arm_checksum_memory(struct target *target, int arm_blank_check_memory(struct target *target, uint32_t address, uint32_t count, uint32_t *blank); +extern struct reg arm_gdb_dummy_fp_reg; +extern struct reg arm_gdb_dummy_fps_reg; /* ARM mode instructions */ diff --git a/src/target/armv7a.c b/src/target/armv7a.c index 8f90dd32..1518674a 100644 --- a/src/target/armv7a.c +++ b/src/target/armv7a.c @@ -144,21 +144,6 @@ int armv7a_core_reg_map[8][17] = } }; -/* FIXME this dummy is IDENTICAL to the armv4_5, arm11, and armv7m - * ones... except for naming/scoping - */ -uint8_t armv7a_gdb_dummy_fp_value[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; - -struct reg armv7a_gdb_dummy_fp_reg = -{ - .name = "GDB dummy floating-point register", - .value = armv7a_gdb_dummy_fp_value, - .dirty = 0, - .valid = 1, - .size = 96, - .arch_info = NULL, -}; - void armv7a_show_fault_registers(struct target *target) { uint32_t dfsr, ifsr, dfar, ifar; diff --git a/src/target/armv7m.c b/src/target/armv7m.c index 862261d4..56fbb05d 100644 --- a/src/target/armv7m.c +++ b/src/target/armv7m.c @@ -35,7 +35,6 @@ #endif #include "breakpoints.h" -#include "target.h" #include "armv7m.h" #include "algorithm.h" #include "register.h" @@ -59,33 +58,6 @@ static char *armv7m_exception_strings[] = "DebugMonitor", "RESERVED", "PendSV", "SysTick" }; -/* FIXME these dummies are IDENTICAL to the armv4_5, arm11, and armv7a - * ones... except for naming/scoping - */ -static uint8_t armv7m_gdb_dummy_fp_value[12]; - -static struct reg armv7m_gdb_dummy_fp_reg = -{ - .name = "GDB dummy floating-point register", - .value = armv7m_gdb_dummy_fp_value, - .dirty = 0, - .valid = 1, - .size = 96, - .arch_info = NULL, -}; - -static uint8_t armv7m_gdb_dummy_fps_value[4]; - -static struct reg armv7m_gdb_dummy_fps_reg = -{ - .name = "GDB dummy floating-point status register", - .value = armv7m_gdb_dummy_fps_value, - .dirty = 0, - .valid = 1, - .size = 32, - .arch_info = NULL, -}; - #ifdef ARMV7_GDB_HACKS uint8_t armv7m_gdb_dummy_cpsr_value[] = {0, 0, 0, 0}; @@ -316,11 +288,8 @@ int armv7m_get_gdb_reg_list(struct target *target, struct reg **reg_list[], int } for (i = 16; i < 24; i++) - { - (*reg_list)[i] = &armv7m_gdb_dummy_fp_reg; - } - - (*reg_list)[24] = &armv7m_gdb_dummy_fps_reg; + (*reg_list)[i] = &arm_gdb_dummy_fp_reg; + (*reg_list)[24] = &arm_gdb_dummy_fps_reg; #ifdef ARMV7_GDB_HACKS /* use dummy cpsr reg otherwise gdb may try and set the thumb bit */ @@ -553,11 +522,9 @@ struct reg_cache *armv7m_build_reg_cache(struct target *target) struct armv7m_core_reg *arch_info = calloc(num_regs, sizeof(struct armv7m_core_reg)); int i; - register_init_dummy(&armv7m_gdb_dummy_fps_reg); #ifdef ARMV7_GDB_HACKS register_init_dummy(&armv7m_gdb_dummy_cpsr_reg); #endif - register_init_dummy(&armv7m_gdb_dummy_fp_reg); /* Build the process context cache */ cache->name = "arm v7m registers"; diff --git a/src/target/armv7m.h b/src/target/armv7m.h index dba9a3bd..9dd4ddbb 100644 --- a/src/target/armv7m.h +++ b/src/target/armv7m.h @@ -27,6 +27,7 @@ #define ARMV7M_COMMON_H #include "arm_adi_v5.h" +#include "armv4_5.h" /* define for enabling armv7 gdb workarounds */ #if 1 diff --git a/src/target/cortex_m3.c b/src/target/cortex_m3.c index c9938c9c..42f8ee08 100644 --- a/src/target/cortex_m3.c +++ b/src/target/cortex_m3.c @@ -334,6 +334,9 @@ static int cortex_m3_debug_entry(struct target *target) xPSR = buf_get_u32(armv7m->core_cache->reg_list[ARMV7M_xPSR].value, 0, 32); #ifdef ARMV7_GDB_HACKS + /* FIXME this breaks on scan chains with more than one Cortex-M3. + * Instead, each CM3 should have its own dummy value... + */ /* copy real xpsr reg for gdb, setting thumb bit */ buf_set_u32(armv7m_gdb_dummy_cpsr_value, 0, 32, xPSR); buf_set_u32(armv7m_gdb_dummy_cpsr_value, 5, 1, 1); diff --git a/src/target/cortex_m3.h b/src/target/cortex_m3.h index 759c2bc7..7ce89014 100644 --- a/src/target/cortex_m3.h +++ b/src/target/cortex_m3.h @@ -26,7 +26,6 @@ #ifndef CORTEX_M3_H #define CORTEX_M3_H -#include "target.h" #include "armv7m.h" |