664d2c4458
With this we no longer pass down envp, and thus all systems can have the same void prototype. So also eliminate a useless thunk. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
87 lines
2.0 KiB
C
87 lines
2.0 KiB
C
#include "qemu-common.h"
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#include "qemu/cache-utils.h"
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#if defined(_ARCH_PPC)
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struct qemu_cache_conf qemu_cache_conf = {
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.dcache_bsize = 16,
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.icache_bsize = 16
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};
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#if defined _AIX
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#include <sys/systemcfg.h>
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void qemu_cache_utils_init(void)
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{
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qemu_cache_conf.icache_bsize = _system_configuration.icache_line;
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qemu_cache_conf.dcache_bsize = _system_configuration.dcache_line;
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}
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#elif defined __linux__
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#include "qemu/osdep.h"
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#include "elf.h"
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void qemu_cache_utils_init(void)
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{
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unsigned long dsize = qemu_getauxval(AT_DCACHEBSIZE);
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unsigned long isize = qemu_getauxval(AT_ICACHEBSIZE);
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if (dsize == 0 || isize == 0) {
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if (dsize == 0) {
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fprintf(stderr, "getauxval AT_DCACHEBSIZE failed\n");
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}
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if (isize == 0) {
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fprintf(stderr, "getauxval AT_ICACHEBSIZE failed\n");
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}
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exit(1);
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}
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qemu_cache_conf.dcache_bsize = dsize;
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qemu_cache_conf.icache_bsize = isize;
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}
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#elif defined __APPLE__
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/sysctl.h>
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void qemu_cache_utils_init(void)
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{
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size_t len;
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unsigned cacheline;
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int name[2] = { CTL_HW, HW_CACHELINE };
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len = sizeof(cacheline);
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if (sysctl(name, 2, &cacheline, &len, NULL, 0)) {
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perror("sysctl CTL_HW HW_CACHELINE failed");
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} else {
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qemu_cache_conf.dcache_bsize = cacheline;
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qemu_cache_conf.icache_bsize = cacheline;
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}
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}
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#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/sysctl.h>
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void qemu_cache_utils_init(void)
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{
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size_t len = 4;
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unsigned cacheline;
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if (sysctlbyname ("machdep.cacheline_size", &cacheline, &len, NULL, 0)) {
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fprintf(stderr, "sysctlbyname machdep.cacheline_size failed: %s\n",
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strerror(errno));
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exit(1);
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}
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qemu_cache_conf.dcache_bsize = cacheline;
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qemu_cache_conf.icache_bsize = cacheline;
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}
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#endif
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#endif /* _ARCH_PPC */
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