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8e53c58759
In my build the below are treated as error now and causing failures. I
have described the fixes of each warning below.
In newlib/libc/sys/or1k/mlock.c:
CC libc/sys/or1k/libc_a-mlock.o
newlib/libc/sys/or1k/mlock.c: In function ‘__malloc_lock’:
newlib/libc/sys/or1k/mlock.c:56:19: warning: implicit declaration of function ‘or1k_critical_begin’ [-Wimplicit-function-declaration]
56 | restore = or1k_critical_begin();
| ^~~~~~~~~~~~~~~~~~~
newlib/libc/sys/or1k/mlock.c: In function ‘__malloc_unlock’:
newlib/libc/sys/or1k/mlock.c:93:17: warning: implicit declaration of function ‘or1k_critical_end’ [-Wimplicit-function-declaration]
93 | or1k_critical_end(restore);
| ^~~~~~~~~~~~~~~~~
This patch adds prototypes for functions or1k_critical_begin and
or1k_critical_end to suppress the warning, inline with what we do for
or1k_sync_cas.
In libgloss/or1k/or1k_uart.c:
libgloss/or1k/or1k_uart.c: In function ‘or1k_uart_set_read_cb’:
libgloss/or1k/or1k_uart.c:163:25: warning: passing argument 2 of ‘or1k_interrupt_handler_add’ from incompatible pointer type [-Wincompatible-pointer-types]
163 | _or1k_uart_interrupt_handler, 0);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| void (*)(uint32_t) {aka void (*)(long unsigned int)}
In file included from libgloss/or1k/or1k_uart.c:19:
libgloss/or1k/include/or1k-support.h:97:45: note: expected ‘or1k_interrupt_handler_fptr’ {aka ‘void (*)(void *)’} but argument is of type ‘void (*)(uint32_t)’ {aka ‘void (*)(long unsigned int)’}
97 | or1k_interrupt_handler_fptr handler,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
The public API is ‘void (*)(void *)' for our interrupt handlers. The
function _or1k_uart_interrupt_hander is the internal default
implementation of the uart IRQ handler and it doesn't use the data
argument.
This patch updates the _or1k_uart_interrupt_handler argument type from
uint32_t to void* allowing the function prototype to match the required
prototype.
If we did have a 64-bit implementation it would be an ABI issue. But,
there never has been one, or1k is only 32-bit.
In libgloss/or1k/interrupts.c:
libgloss/or1k/interrupts.c: In function ‘or1k_interrupt_handler_add’:
libgloss/or1k/interrupts.c:41:52: warning: assignment to ‘void *’ from ‘long unsigned int’ makes pointer from integer without a cast [-Wint-conversion]
41 | _or1k_interrupt_handler_data_ptr_table[id] = (uint32_t) data_ptr;
| ^
The table _or1k_interrupt_handler_data_ptr_table is an array of void*
and data_ptr is void*. There is no need for the cast so remove it.
In libgloss/or1k/sbrk.c:
libgloss/or1k/sbrk.c:23:29: warning: initialization of ‘uint32_t’ {aka ‘long unsigned int’} from ‘uint32_t *’ {aka ‘long unsigned int *’} makes integer from pointer without a cast [-Wint-conversion]
23 | uint32_t _or1k_heap_start = &end;
|
This patch adds a cast, which is safe in or1k as the architecture in
32-bit only. But this code would not be 64-compatible.
Signed-off-by: Stafford Horne <shorne@gmail.com>
70 lines
2.1 KiB
C
70 lines
2.1 KiB
C
/* interrupts.c -- interrupt handling for OpenRISC 1000.
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*
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* Copyright (c) 2014 Authors
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*
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* Contributor Stefan Wallentowitz <stefan.wallentowitz@tum.de>
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*
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* The authors hereby grant permission to use, copy, modify, distribute,
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* and license this software and its documentation for any purpose, provided
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* that existing copyright notices are retained in all copies and that this
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* notice is included verbatim in any distributions. No written agreement,
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* license, or royalty fee is required for any of the authorized uses.
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* Modifications to this software may be copyrighted by their authors
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* and need not follow the licensing terms described here, provided that
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* the new terms are clearly indicated on the first page of each file where
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* they apply.
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*/
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#include "include/or1k-support.h"
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#include "include/or1k-sprs.h"
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#include <stdint.h>
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#include "or1k-internals.h"
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#ifdef __OR1K_MULTICORE__
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or1k_interrupt_handler_table_t *_or1k_interrupt_handler_table;
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or1k_interrupt_handler_data_ptr_table_t *_or1k_interrupt_handler_data_ptr_table;
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#else
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or1k_interrupt_handler_table_t _or1k_interrupt_handler_table;
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or1k_interrupt_handler_data_ptr_table_t _or1k_interrupt_handler_data_ptr_table;
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#endif
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void or1k_interrupt_handler_add(uint32_t id,
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or1k_interrupt_handler_fptr handler,
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void *data_ptr)
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{
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#ifdef __OR1K_MULTICORE__
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_or1k_interrupt_handler_table[or1k_coreid()][id] = handler;
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_or1k_interrupt_handler_data_ptr_table[or1k_coreid()][id] = data_ptr;
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#else
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_or1k_interrupt_handler_table[id] = handler;
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_or1k_interrupt_handler_data_ptr_table[id] = data_ptr;
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#endif
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}
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void
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or1k_interrupts_enable(void)
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{
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uint32_t sr = or1k_mfspr(OR1K_SPR_SYS_SR_ADDR);
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sr = OR1K_SPR_SYS_SR_IEE_SET(sr, 1);
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or1k_mtspr(OR1K_SPR_SYS_SR_ADDR, sr);
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}
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uint32_t
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or1k_interrupts_disable(void)
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{
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uint32_t oldsr, newsr;
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oldsr= or1k_mfspr(OR1K_SPR_SYS_SR_ADDR);
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newsr = OR1K_SPR_SYS_SR_IEE_SET(oldsr, 0);
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or1k_mtspr(OR1K_SPR_SYS_SR_ADDR, newsr);
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return OR1K_SPR_SYS_SR_IEE_GET(oldsr);
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}
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void
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or1k_interrupts_restore(uint32_t sr_iee)
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{
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uint32_t sr = or1k_mfspr(OR1K_SPR_SYS_SR_ADDR);
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sr = OR1K_SPR_SYS_SR_IEE_SET(sr, sr_iee);
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or1k_mtspr(OR1K_SPR_SYS_SR_ADDR, sr);
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}
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