minix/minix/kernel/usermapped_data.c

#include "kernel/kernel.h"

/* This is the user-visible struct that has pointers to other bits of data. */
struct minix_kerninfo minix_kerninfo __section(".usermapped");

/* Kernel information structures. */
struct kinfo kinfo __section(".usermapped");		/* kernel information for services */
struct machine machine __section(".usermapped");	/* machine information for services */
struct kmessages kmessages __section(".usermapped");	/* diagnostic messages in kernel */
struct loadinfo loadinfo __section(".usermapped");	/* status of load average */
struct kuserinfo kuserinfo __section(".usermapped");
	/* kernel information for users */
struct arm_frclock arm_frclock __section(".usermapped");
	/* ARM free running timer information */
struct kclockinfo kclockinfo __section(".usermapped");	/* clock information */
Libraries updates and cleanup * Updating common/lib * Updating lib/csu * Updating lib/libc * Updating libexec/ld.elf_so * Corrected test on __minix in featuretest to actually follow the meaning of the comment. * Cleaned up _REENTRANT-related defintions. * Disabled -D_REENTRANT for libfetch * Removing some unneeded __NBSD_LIBC defines and tests Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2 2012-11-15 12:06:41 +01:00			`#include "kernel/kernel.h"`
kernel: facility for user-visible memory . map all objects named usermapped_.o with globally visible pages; usermapped_glo_.o with the VM 'global' bit on, i.e. permanently in tlb (very scarce resource!) . added kinfo, machine, kmessages and loadinfo for a start . modified log, tty to make use of the shared messages struct 2012-07-18 18:53:20 +02:00
			`/* This is the user-visible struct that has pointers to other bits of data. */`
Fix bitcode support for kernel 2014-08-21 13:35:45 +02:00			`struct minix_kerninfo minix_kerninfo __section(".usermapped");`
kernel: facility for user-visible memory . map all objects named usermapped_.o with globally visible pages; usermapped_glo_.o with the VM 'global' bit on, i.e. permanently in tlb (very scarce resource!) . added kinfo, machine, kmessages and loadinfo for a start . modified log, tty to make use of the shared messages struct 2012-07-18 18:53:20 +02:00
			`/* Kernel information structures. */`
Kernel: separate userland ABI on kernel page Currently, the userland ABI uses a single field ('user_sp') far into the very large 'kinfo' structure on the shared kernel information page. This precludes us from modifying or getting rid of 'kinfo' in the future without breaking userland. This patch adds a separate 'kuserinfo' structure to the kernel information page, with only information that is part of the userland ABI, in an extensible manner. Userland now uses this field if it is present, and falls back to the old field if not. Change-Id: Ib7b24b53a440f40a2edc28cdfa48447ac2179288 2015-09-21 16:52:29 +02:00			`struct kinfo kinfo __section(".usermapped"); /* kernel information for services */`
			`struct machine machine __section(".usermapped"); /* machine information for services */`
Fix bitcode support for kernel 2014-08-21 13:35:45 +02:00			`struct kmessages kmessages __section(".usermapped"); /* diagnostic messages in kernel */`
			`struct loadinfo loadinfo __section(".usermapped"); /* status of load average */`
Kernel: separate userland ABI on kernel page Currently, the userland ABI uses a single field ('user_sp') far into the very large 'kinfo' structure on the shared kernel information page. This precludes us from modifying or getting rid of 'kinfo' in the future without breaking userland. This patch adds a separate 'kuserinfo' structure to the kernel information page, with only information that is part of the userland ABI, in an extensible manner. Userland now uses this field if it is present, and falls back to the old field if not. Change-Id: Ib7b24b53a440f40a2edc28cdfa48447ac2179288 2015-09-21 16:52:29 +02:00			`struct kuserinfo kuserinfo __section(".usermapped");`
			`/* kernel information for users */`
Kernel: store ARM frclock info in one structure This change serves to reduce the clutter inside the top-level kerninfo structure, and allows other ARM-specific values to be added on the kernel page in one place. Change-Id: I36a6aada9dbd1230b25014728be675d389088667 2015-09-21 16:17:11 +02:00			`struct arm_frclock arm_frclock __section(".usermapped");`
			`/* ARM free running timer information */`
Kernel: export clock information on kernel page Please note that this information is for use by system services only! The clock facility is not ready to be used directly by userland, and thus, this kernel page extension is NOT part of the userland ABI. For service programmers' convenience, change the prototype of the getticks(3) to return the uptime clock value directly, since the call can no longer fail. Correct the sys_times(2) reply message to use the right field type for the boot time. Restructure the kernel internals a bit so as to have all the clock stuff closer together. Change-Id: Ifc050b7bd253aecbe46e3bd7d7cc75bd86e45555 2015-09-21 15:07:55 +02:00			`struct kclockinfo kclockinfo __section(".usermapped"); /* clock information */`