I've observed a strange results while profiling the following program:
$ cat test.c
#include
#define rdtscll(val) asm volatile("rdtsc" : "=A" (val))
struct timeval tv;
unsigned long long t;
void f (int n)
{
int x, y, z = 0;
for (x = 0; x < n; x++)
for (y = 0; y < n; y++) {
z +=
--- Additional Comments From stephane dot chauveau at philips dot com
2006-06-15 09:21 ---
A few more remarks:
(1) Because of the alignment constraints, it is probably safe to assume that the
total size of each address (including the segment) will be a power of two.
Readelf should be
--- Additional Comments From stephane dot chauveau at philips dot com
2006-06-15 08:33 ---
Created an attachment (id=1094)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=1094&action=view)
Proper version of a_4_4.elf
A proper version of the previous sample a_4_4.elf.
Readelf does
--- Additional Comments From stephane dot chauveau at philips dot com
2006-06-15 08:24 ---
(From update of attachment 1093)
The ELF file is incorrect (the end marker in a .debug_arange section is
2*4bytes instead of 2*8bytes)
--
What|Removed |Added
-
--- Additional Comments From stephane dot chauveau at philips dot com
2006-06-15 08:04 ---
Created an attachment (id=1093)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=1093&action=view)
elf file with address_size=4 and segment_size=4
In the two previous samples, I rely on the
--- Additional Comments From stephane dot chauveau at philips dot com
2006-06-15 07:53 ---
Created an attachment (id=1092)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=1092&action=view)
elf file with address_size=3 bytes and segmen_sizet=1byte
In that version, I indicate expli
--- Additional Comments From stephane dot chauveau at philips dot com
2006-06-15 07:46 ---
Created an attachment (id=1091)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=1091&action=view)
reference elf file (not segmented)
in that version, the arange section is not explictly seg
--- Additional Comments From stephane dot chauveau at philips dot com
2006-06-15 07:41 ---
I am currently trying to implement DWARF2 support for our architectures so I can
only provide samples that show my current interpretation of the specs.
More precisely, our architectures are not e
