diff options
Diffstat (limited to '')
| -rw-r--r-- | man2/getunwind.2 | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/man2/getunwind.2 b/man2/getunwind.2 index eaf7117..1a904b7 100644 --- a/man2/getunwind.2 +++ b/man2/getunwind.2 @@ -4,7 +4,7 @@ .\" .\" SPDX-License-Identifier: Linux-man-pages-copyleft .\" -.TH getunwind 2 2023-03-30 "Linux man-pages 6.05.01" +.TH getunwind 2 2023-10-31 "Linux man-pages 6.7" .SH NAME getunwind \- copy the unwind data to caller's buffer .SH LIBRARY @@ -15,13 +15,13 @@ Standard C library .B #include <linux/unwind.h> .BR "#include <sys/syscall.h>" " /* Definition of " SYS_* " constants */" .B #include <unistd.h> -.PP +.P .BI "[[deprecated]] long syscall(SYS_getunwind, void " buf [. buf_size ], .BI " size_t " buf_size ); .fi .SH DESCRIPTION .I Note: this system call is obsolete. -.PP +.P The IA-64-specific .BR getunwind () @@ -31,7 +31,7 @@ unwind data into the buffer pointed to by and returns the size of the unwind data; this data describes the gate page (kernel code that is mapped into user space). -.PP +.P The size of the buffer .I buf is specified in @@ -43,11 +43,11 @@ is greater than or equal to the size of the unwind data and is not NULL; otherwise, no data is copied, and the call succeeds, returning the size that would be needed to store the unwind data. -.PP +.P The first part of the unwind data contains an unwind table. The rest contains the associated unwind information, in no particular order. The unwind table contains entries of the following form: -.PP +.P .in +4n .EX u64 start; (64\-bit address of start of function) @@ -55,7 +55,7 @@ u64 end; (64\-bit address of end of function) u64 info; (BUF\-relative offset to unwind info) .EE .in -.PP +.P An entry whose .I start value is zero indicates the end of the table. @@ -79,7 +79,7 @@ if the unwind info can't be stored in the space specified by Linux on IA-64. .SH HISTORY Linux 2.4. -.PP +.P This system call has been deprecated. The modern way to obtain the kernel's unwind data is via the .BR vdso (7). |