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Merge branch 'wip/hppa' into 'master'

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mapped-ring-buffer: Round to the shared memory boundary on hppa

See merge request GNOME/sysprof!127
This commit is contained in:
Christian Hergert
2025-03-18 01:31:25 +00:00
parent 745c5c28c4 b129c7dea2
commit 05dface80a
1 changed files with 9 additions and 1 deletions
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10
src/libsysprof-capture/mapped-ring-buffer.c
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@ -71,6 +71,7 @@
#define DEFAULT_N_PAGES 63 #define DEFAULT_N_PAGES 63
#define BUFFER_MAX_SIZE ((UINT32_MAX/2)-_sysprof_getpagesize()) #define BUFFER_MAX_SIZE ((UINT32_MAX/2)-_sysprof_getpagesize())
#define SHM_COLOUR 0x00400000
enum { enum {
MODE_READER = 1, MODE_READER = 1,
@ -209,9 +210,16 @@ mapped_ring_buffer_new_reader (size_t buffer_size)
page_size = _sysprof_getpagesize (); page_size = _sysprof_getpagesize ();
/* Add 1 page for coordination header */
if (buffer_size == 0) if (buffer_size == 0)
buffer_size = page_size * DEFAULT_N_PAGES; buffer_size = page_size * DEFAULT_N_PAGES;
#ifdef __hppa__
/* Round buffer_size up to the shared memory colour boundary */
buffer_size += SHM_COLOUR - 1;
buffer_size &= ~(SHM_COLOUR - 1);
#endif
/* Add 1 page for coordination header */
buffer_size += page_size; buffer_size += page_size;
/* Create our memfd (or tmpfs) for writing */ /* Create our memfd (or tmpfs) for writing */