From ff10df025a6a345908fa244fe2abd22ece466f43 Mon Sep 17 00:00:00 2001 From: "Dmitry V. Levin" Date: Sun, 19 Mar 2006 17:08:09 +0000 Subject: [PATCH] Backported defaultMachine changes from rpm-4_4 branch. --- lib/rpmrc.c | 210 ++++++++++++++++++++++++++++------------------------ 1 file changed, 112 insertions(+), 98 deletions(-) diff --git a/lib/rpmrc.c b/lib/rpmrc.c index 77bf0b2..80ab644 100644 --- a/lib/rpmrc.c +++ b/lib/rpmrc.c @@ -870,22 +870,19 @@ exit: /* * Generic CPUID function */ -static inline void cpuid(unsigned int op, int *eax, int *ebx, int *ecx, int *edx) +static inline void cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx, unsigned int *ecx, unsigned int *edx) /*@modifies *eax, *ebx, *ecx, *edx @*/ { #ifdef __LCLINT__ *eax = *ebx = *ecx = *edx = 0; #endif -#ifdef PIC - __asm__("pushl %%ebx; cpuid; movl %%ebx,%1; popl %%ebx" - : "=a"(*eax), "=g"(*ebx), "=&c"(*ecx), "=&d"(*edx) - : "a" (op)); -#else - __asm__("cpuid" - : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx) - : "a" (op)); -#endif - + asm volatile ( + "pushl %%ebx \n" + "cpuid \n" + "movl %%ebx, %%esi \n" + "popl %%ebx \n" + : "=a" (*eax), "=S" (*ebx), "=c" (*ecx), "=d" (*edx) + : "a" (op)); } /* @@ -894,15 +891,8 @@ static inline void cpuid(unsigned int op, int *eax, int *ebx, int *ecx, int *edx static inline unsigned int cpuid_eax(unsigned int op) /*@*/ { - unsigned int val; - -#ifdef PIC - __asm__("pushl %%ebx; cpuid; popl %%ebx" - : "=a" (val) : "a" (op) : "ecx", "edx"); -#else - __asm__("cpuid" - : "=a" (val) : "a" (op) : "ebx", "ecx", "edx"); -#endif + unsigned int tmp, val; + cpuid(op, &val, &tmp, &tmp, &tmp); return val; } @@ -910,14 +900,7 @@ static inline unsigned int cpuid_ebx(unsigned int op) /*@*/ { unsigned int tmp, val; - -#ifdef PIC - __asm__("pushl %%ebx; cpuid; movl %%ebx,%1; popl %%ebx" - : "=a" (tmp), "=g" (val) : "a" (op) : "ecx", "edx"); -#else - __asm__("cpuid" - : "=a" (tmp), "=b" (val) : "a" (op) : "ecx", "edx"); -#endif + cpuid(op, &tmp, &val, &tmp, &tmp); return val; } @@ -925,30 +908,16 @@ static inline unsigned int cpuid_ecx(unsigned int op) /*@*/ { unsigned int tmp, val; -#ifdef PIC - __asm__("pushl %%ebx; cpuid; popl %%ebx" - : "=a" (tmp), "=c" (val) : "a" (op) : "edx"); -#else - __asm__("cpuid" - : "=a" (tmp), "=c" (val) : "a" (op) : "ebx", "edx"); -#endif + cpuid(op, &tmp, &tmp, &val, &tmp); return val; - } static inline unsigned int cpuid_edx(unsigned int op) /*@*/ { unsigned int tmp, val; -#ifdef PIC - __asm__("pushl %%ebx; cpuid; popl %%ebx" - : "=a" (tmp), "=d" (val) : "a" (op) : "ecx"); -#else - __asm__("cpuid" - : "=a" (tmp), "=d" (val) : "a" (op) : "ebx", "ecx"); -#endif + cpuid(op, &tmp, &tmp, &tmp, &val); return val; - } /*@unchecked@*/ @@ -970,10 +939,10 @@ static inline int RPMClass(void) signal(SIGILL, model3); - if(sigsetjmp(jenv, 1)) + if (sigsetjmp(jenv, 1)) return 3; - if(cpuid_eax(0x000000000)==0) + if (cpuid_eax(0x000000000)==0) return 4; cpuid(0x00000001, &tfms, &junk, &junk, &cap); @@ -981,7 +950,7 @@ static inline int RPMClass(void) cpu = (tfms>>8)&15; - if(cpu < 6) + if (cpu < 6) return cpu; if (cap & (1<<15)) { @@ -994,7 +963,6 @@ static inline int RPMClass(void) return 5; } -#if 0 /* should only be called for model 6 CPU's */ static int is_athlon(void) /*@*/ @@ -1021,7 +989,73 @@ static int is_athlon(void) return 1; } -#endif + +static int is_pentium3(void) +{ + unsigned int eax, ebx, ecx, edx, family, model; + char vendor[16]; + cpuid(0, &eax, &ebx, &ecx, &edx); + memset(vendor, 0, sizeof(vendor)); + *((unsigned int *)&vendor[0]) = ebx; + *((unsigned int *)&vendor[4]) = edx; + *((unsigned int *)&vendor[8]) = ecx; + if (strncmp(vendor, "GenuineIntel", 12) != 0) + return 0; + cpuid(1, &eax, &ebx, &ecx, &edx); + family = (eax >> 8) & 0x0f; + model = (eax >> 4) & 0x0f; + if (family == 6) + switch (model) + { + case 7: // Pentium III, Pentium III Xeon (model 7) + case 8: // Pentium III, Pentium III Xeon, Celeron (model 8) + case 9: // Pentium M + /* + Intel recently announced its new technology for mobile platforms, + named Centrino, and presents it as a big advance in mobile PCs. + One of the main part of Centrino consists in a brand new CPU, + the Pentium M, codenamed Banias, that we'll study in this review. + A particularity of this CPU is that it was designed for mobile platform + exclusively, unlike previous mobile CPU (Pentium III-M, Pentium 4-M) + that share the same micro-architecture as their desktop counterparts. + The Pentium M introduces a new micro-architecture, adapted for mobility + constraints, and that is halfway between the Pentium III and the Pentium 4. + ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + */ + case 10: // Pentium III Xeon (model A) + case 11: // Pentium III (model B) + return 1; + } + return 0; +} + +static int is_pentium4(void) +{ + unsigned int eax, ebx, ecx, edx, family, model; + char vendor[16]; + cpuid(0, &eax, &ebx, &ecx, &edx); + memset(vendor, 0, sizeof(vendor)); + *((unsigned int *)&vendor[0]) = ebx; + *((unsigned int *)&vendor[4]) = edx; + *((unsigned int *)&vendor[8]) = ecx; + if (strncmp(vendor, "GenuineIntel", 12) != 0) + return 0; + cpuid(1, &eax, &ebx, &ecx, &edx); + family = (eax >> 8) & 0x0f; + model = (eax >> 4) & 0x0f; + if (family == 15) + switch (model) + { + case 0: // Pentium 4, Pentium 4 Xeon (0.18um) + case 1: // Pentium 4, Pentium 4 Xeon MP, Celeron (0.18um) + case 2: // Pentium 4, Mobile Pentium 4-M, + // Pentium 4 Xeon, Pentium 4 Xeon MP, + // Celeron, Mobile Celron (0.13um) + case 3: // Pentium 4, Celeron (0.09um) + return 1; + } + return 0; +} #endif @@ -1034,39 +1068,6 @@ static void mfspr_ill(int notused) } #endif -static const char * -checkCPU (void) -{ - int fd = open ("/proc/cpuinfo", O_RDONLY); - - if (fd >= 0) - { - char buffer[BUFSIZ]; - - memset (buffer, 0, sizeof buffer); - read (fd, buffer, sizeof buffer - 1); - close (fd); - - if (strstr (buffer, "AMD")) - { - if (strstr (buffer, "Athlon") - || strstr (buffer, "Duron")) - return "athlon"; - - if (strstr (buffer, "K6")) - return "k6"; - } else if (strstr (buffer, "Intel")) - { - if (strstr (buffer, "Pentium(R) 4") - || strstr (buffer, "Intel(R) Xeon(TM)") - || strstr (buffer, "Intel(R) XEON(TM)")) - return "pentium4"; - } - } - - return 0; -} - /** */ static void defaultMachine(/*@out@*/ const char ** arch, @@ -1113,6 +1114,13 @@ static void defaultMachine(/*@out@*/ const char ** arch, strcpy(un.machine, __power_pc() ? "ppc" : "rs6000"); sprintf(un.sysname,"aix%s.%s", un.version, un.release); } + else if(!strcmp(un.sysname, "Darwin")) { +#ifdef __ppc__ + strcpy(un.machine, "ppc"); +#else ifdef __i386__ + strcpy(un.machine, "i386"); +#endif + } else if (!strcmp(un.sysname, "SunOS")) { if (!strncmp(un.release,"4", 1)) /* SunOS 4.x */ { int fd; @@ -1287,25 +1295,18 @@ static void defaultMachine(/*@out@*/ const char ** arch, # endif # if defined(__linux__) && defined(__i386__) -#if 0 { char class = (char) (RPMClass() | '0'); if ((class == '6' && is_athlon()) || class == '7') strcpy(un.machine, "athlon"); + else if (is_pentium4()) + strcpy(un.machine, "pentium4"); + else if (is_pentium3()) + strcpy(un.machine, "pentium3"); else if (strchr("3456", un.machine[1]) && un.machine[1] != class) un.machine[1] = class; } -#endif - - if (!strcmp (un.machine, "i586") || !strcmp (un.machine, "i686")) - { - const char *c = checkCPU (); - - if (c) - strcpy (un.machine, c); - } - # endif # if defined(__linux__) && defined(__powerpc__) @@ -1319,12 +1320,25 @@ static void defaultMachine(/*@out@*/ const char ** arch, if ( pvr ) { pvr >>= 16; - if ( pvr >= 0x40) - strcpy(un.machine, "ppcpseries"); - else if ( (pvr == 0x36) || (pvr == 0x37) ) + switch (pvr) { + /* IBM750FX, 7410, 7450, 7451, 7441, 7455, 7445 */ + case 0x7000: + case 0x8000: + case 0x8001: + case 0x800c: + strcpy(un.machine, "ppc"); + break; + case 0x36: + case 0x37: strcpy(un.machine, "ppciseries"); - else - strcpy(un.machine, "ppc"); + break; + default: + if ( pvr >= 0x40) + strcpy(un.machine, "ppcpseries"); + else + strcpy(un.machine, "ppc"); + break; + } } } # endif